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-rw-r--r--drivers/clk/Makefile1
-rw-r--r--drivers/clk/clk-sunxi.c30
-rw-r--r--drivers/clocksource/Kconfig3
-rw-r--r--drivers/clocksource/Makefile1
-rw-r--r--drivers/clocksource/sunxi_timer.c171
-rw-r--r--drivers/cpuidle/Kconfig10
-rw-r--r--drivers/cpuidle/Makefile2
-rw-r--r--drivers/cpuidle/cpuidle-calxeda.c161
-rw-r--r--drivers/irqchip/Kconfig9
-rw-r--r--drivers/irqchip/Makefile2
-rw-r--r--drivers/irqchip/irq-sunxi.c151
-rw-r--r--drivers/irqchip/irq-versatile-fpga.c203
-rw-r--r--drivers/media/platform/soc_camera/mx2_camera.c39
-rw-r--r--drivers/mfd/Kconfig6
-rw-r--r--drivers/mfd/Makefile1
-rw-r--r--drivers/mfd/vexpress-config.c277
-rw-r--r--drivers/mfd/vexpress-sysreg.c475
-rw-r--r--drivers/mtd/maps/Kconfig7
-rw-r--r--drivers/mtd/maps/Makefile1
-rw-r--r--drivers/mtd/maps/cdb89712.c278
-rw-r--r--drivers/mtd/nand/Kconfig13
-rw-r--r--drivers/mtd/nand/Makefile2
-rw-r--r--drivers/mtd/nand/autcpu12.c237
-rw-r--r--drivers/mtd/nand/spia.c176
-rw-r--r--drivers/pinctrl/Kconfig5
-rw-r--r--drivers/pinctrl/Makefile1
-rw-r--r--drivers/pinctrl/pinctrl-exynos.c477
-rw-r--r--drivers/pinctrl/pinctrl-exynos.h170
-rw-r--r--drivers/pinctrl/pinctrl-exynos5440.c919
-rw-r--r--drivers/pinctrl/pinctrl-samsung.c207
-rw-r--r--drivers/pinctrl/pinctrl-samsung.h30
-rw-r--r--drivers/sh/clk/cpg.c86
-rw-r--r--drivers/tty/serial/samsung.c3
-rw-r--r--drivers/uio/Kconfig1
-rw-r--r--drivers/uio/uio_pruss.c24
-rw-r--r--drivers/video/clps711xfb.c156
36 files changed, 3064 insertions, 1271 deletions
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index 2701235d575..a96bda3d3b8 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -19,6 +19,7 @@ endif
obj-$(CONFIG_MACH_LOONGSON1) += clk-ls1x.o
obj-$(CONFIG_ARCH_U8500) += ux500/
obj-$(CONFIG_ARCH_VT8500) += clk-vt8500.o
+obj-$(CONFIG_ARCH_SUNXI) += clk-sunxi.o
# Chip specific
obj-$(CONFIG_COMMON_CLK_WM831X) += clk-wm831x.o
diff --git a/drivers/clk/clk-sunxi.c b/drivers/clk/clk-sunxi.c
new file mode 100644
index 00000000000..0e831b584ba
--- /dev/null
+++ b/drivers/clk/clk-sunxi.c
@@ -0,0 +1,30 @@
+/*
+ * Copyright 2012 Maxime Ripard
+ *
+ * Maxime Ripard <maxime.ripard@free-electrons.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+#include <linux/clk/sunxi.h>
+#include <linux/of.h>
+
+static const __initconst struct of_device_id clk_match[] = {
+ { .compatible = "fixed-clock", .data = of_fixed_clk_setup, },
+ {}
+};
+
+void __init sunxi_init_clocks(void)
+{
+ of_clk_init(clk_match);
+}
diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index 6a78073c380..a0985732f1e 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -22,6 +22,9 @@ config DW_APB_TIMER_OF
config ARMADA_370_XP_TIMER
bool
+config SUNXI_TIMER
+ bool
+
config CLKSRC_DBX500_PRCMU
bool "Clocksource PRCMU Timer"
depends on UX500_SOC_DB8500
diff --git a/drivers/clocksource/Makefile b/drivers/clocksource/Makefile
index 603be366f76..36f06de4c5a 100644
--- a/drivers/clocksource/Makefile
+++ b/drivers/clocksource/Makefile
@@ -14,5 +14,6 @@ obj-$(CONFIG_DW_APB_TIMER_OF) += dw_apb_timer_of.o
obj-$(CONFIG_CLKSRC_DBX500_PRCMU) += clksrc-dbx500-prcmu.o
obj-$(CONFIG_ARMADA_370_XP_TIMER) += time-armada-370-xp.o
obj-$(CONFIG_ARCH_BCM2835) += bcm2835_timer.o
+obj-$(CONFIG_SUNXI_TIMER) += sunxi_timer.o
obj-$(CONFIG_CLKSRC_ARM_GENERIC) += arm_generic.o
diff --git a/drivers/clocksource/sunxi_timer.c b/drivers/clocksource/sunxi_timer.c
new file mode 100644
index 00000000000..3cd1bd3d7ae
--- /dev/null
+++ b/drivers/clocksource/sunxi_timer.c
@@ -0,0 +1,171 @@
+/*
+ * Allwinner A1X SoCs timer handling.
+ *
+ * Copyright (C) 2012 Maxime Ripard
+ *
+ * Maxime Ripard <maxime.ripard@free-electrons.com>
+ *
+ * Based on code from
+ * Allwinner Technology Co., Ltd. <www.allwinnertech.com>
+ * Benn Huang <benn@allwinnertech.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/clk.h>
+#include <linux/clockchips.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/irqreturn.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+#include <linux/sunxi_timer.h>
+#include <linux/clk/sunxi.h>
+
+#define TIMER_CTL_REG 0x00
+#define TIMER_CTL_ENABLE (1 << 0)
+#define TIMER_IRQ_ST_REG 0x04
+#define TIMER0_CTL_REG 0x10
+#define TIMER0_CTL_ENABLE (1 << 0)
+#define TIMER0_CTL_AUTORELOAD (1 << 1)
+#define TIMER0_CTL_ONESHOT (1 << 7)
+#define TIMER0_INTVAL_REG 0x14
+#define TIMER0_CNTVAL_REG 0x18
+
+#define TIMER_SCAL 16
+
+static void __iomem *timer_base;
+
+static void sunxi_clkevt_mode(enum clock_event_mode mode,
+ struct clock_event_device *clk)
+{
+ u32 u = readl(timer_base + TIMER0_CTL_REG);
+
+ switch (mode) {
+ case CLOCK_EVT_MODE_PERIODIC:
+ u &= ~(TIMER0_CTL_ONESHOT);
+ writel(u | TIMER0_CTL_ENABLE, timer_base + TIMER0_CTL_REG);
+ break;
+
+ case CLOCK_EVT_MODE_ONESHOT:
+ writel(u | TIMER0_CTL_ONESHOT, timer_base + TIMER0_CTL_REG);
+ break;
+ case CLOCK_EVT_MODE_UNUSED:
+ case CLOCK_EVT_MODE_SHUTDOWN:
+ default:
+ writel(u & ~(TIMER0_CTL_ENABLE), timer_base + TIMER0_CTL_REG);
+ break;
+ }
+}
+
+static int sunxi_clkevt_next_event(unsigned long evt,
+ struct clock_event_device *unused)
+{
+ u32 u = readl(timer_base + TIMER0_CTL_REG);
+ writel(evt, timer_base + TIMER0_CNTVAL_REG);
+ writel(u | TIMER0_CTL_ENABLE | TIMER0_CTL_AUTORELOAD,
+ timer_base + TIMER0_CTL_REG);
+
+ return 0;
+}
+
+static struct clock_event_device sunxi_clockevent = {
+ .name = "sunxi_tick",
+ .shift = 32,
+ .rating = 300,
+ .features = CLOCK_EVT_FEAT_PERIODIC | CLOCK_EVT_FEAT_ONESHOT,
+ .set_mode = sunxi_clkevt_mode,
+ .set_next_event = sunxi_clkevt_next_event,
+};
+
+
+static irqreturn_t sunxi_timer_interrupt(int irq, void *dev_id)
+{
+ struct clock_event_device *evt = (struct clock_event_device *)dev_id;
+
+ writel(0x1, timer_base + TIMER_IRQ_ST_REG);
+ evt->event_handler(evt);
+
+ return IRQ_HANDLED;
+}
+
+static struct irqaction sunxi_timer_irq = {
+ .name = "sunxi_timer0",
+ .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL,
+ .handler = sunxi_timer_interrupt,
+ .dev_id = &sunxi_clockevent,
+};
+
+static struct of_device_id sunxi_timer_dt_ids[] = {
+ { .compatible = "allwinner,sunxi-timer" },
+ { }
+};
+
+static void __init sunxi_timer_init(void)
+{
+ struct device_node *node;
+ unsigned long rate = 0;
+ struct clk *clk;
+ int ret, irq;
+ u32 val;
+
+ node = of_find_matching_node(NULL, sunxi_timer_dt_ids);
+ if (!node)
+ panic("No sunxi timer node");
+
+ timer_base = of_iomap(node, 0);
+ if (!timer_base)
+ panic("Can't map registers");
+
+ irq = irq_of_parse_and_map(node, 0);
+ if (irq <= 0)
+ panic("Can't parse IRQ");
+
+ sunxi_init_clocks();
+
+ clk = of_clk_get(node, 0);
+ if (IS_ERR(clk))
+ panic("Can't get timer clock");
+
+ rate = clk_get_rate(clk);
+
+ writel(rate / (TIMER_SCAL * HZ),
+ timer_base + TIMER0_INTVAL_REG);
+
+ /* set clock source to HOSC, 16 pre-division */
+ val = readl(timer_base + TIMER0_CTL_REG);
+ val &= ~(0x07 << 4);
+ val &= ~(0x03 << 2);
+ val |= (4 << 4) | (1 << 2);
+ writel(val, timer_base + TIMER0_CTL_REG);
+
+ /* set mode to auto reload */
+ val = readl(timer_base + TIMER0_CTL_REG);
+ writel(val | TIMER0_CTL_AUTORELOAD, timer_base + TIMER0_CTL_REG);
+
+ ret = setup_irq(irq, &sunxi_timer_irq);
+ if (ret)
+ pr_warn("failed to setup irq %d\n", irq);
+
+ /* Enable timer0 interrupt */
+ val = readl(timer_base + TIMER_CTL_REG);
+ writel(val | TIMER_CTL_ENABLE, timer_base + TIMER_CTL_REG);
+
+ sunxi_clockevent.mult = div_sc(rate / TIMER_SCAL,
+ NSEC_PER_SEC,
+ sunxi_clockevent.shift);
+ sunxi_clockevent.max_delta_ns = clockevent_delta2ns(0xff,
+ &sunxi_clockevent);
+ sunxi_clockevent.min_delta_ns = clockevent_delta2ns(0x1,
+ &sunxi_clockevent);
+ sunxi_clockevent.cpumask = cpumask_of(0);
+
+ clockevents_register_device(&sunxi_clockevent);
+}
+
+struct sys_timer sunxi_timer = {
+ .init = sunxi_timer_init,
+};
diff --git a/drivers/cpuidle/Kconfig b/drivers/cpuidle/Kconfig
index 234ae651b38..c4cc27e5c8a 100644
--- a/drivers/cpuidle/Kconfig
+++ b/drivers/cpuidle/Kconfig
@@ -30,3 +30,13 @@ config CPU_IDLE_GOV_MENU
config ARCH_NEEDS_CPU_IDLE_COUPLED
def_bool n
+
+if CPU_IDLE
+
+config CPU_IDLE_CALXEDA
+ bool "CPU Idle Driver for Calxeda processors"
+ depends on ARCH_HIGHBANK
+ help
+ Select this to enable cpuidle on Calxeda processors.
+
+endif
diff --git a/drivers/cpuidle/Makefile b/drivers/cpuidle/Makefile
index 38c8f69f30c..03ee87482c7 100644
--- a/drivers/cpuidle/Makefile
+++ b/drivers/cpuidle/Makefile
@@ -4,3 +4,5 @@
obj-y += cpuidle.o driver.o governor.o sysfs.o governors/
obj-$(CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED) += coupled.o
+
+obj-$(CONFIG_CPU_IDLE_CALXEDA) += cpuidle-calxeda.o
diff --git a/drivers/cpuidle/cpuidle-calxeda.c b/drivers/cpuidle/cpuidle-calxeda.c
new file mode 100644
index 00000000000..e1aab38c5a8
--- /dev/null
+++ b/drivers/cpuidle/cpuidle-calxeda.c
@@ -0,0 +1,161 @@
+/*
+ * Copyright 2012 Calxeda, Inc.
+ *
+ * Based on arch/arm/plat-mxc/cpuidle.c:
+ * Copyright 2012 Freescale Semiconductor, Inc.
+ * Copyright 2012 Linaro Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/cpuidle.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/time.h>
+#include <linux/delay.h>
+#include <linux/suspend.h>
+#include <asm/cpuidle.h>
+#include <asm/proc-fns.h>
+#include <asm/smp_scu.h>
+#include <asm/suspend.h>
+#include <asm/cacheflush.h>
+#include <asm/cp15.h>
+
+extern void highbank_set_cpu_jump(int cpu, void *jump_addr);
+extern void *scu_base_addr;
+
+static struct cpuidle_device __percpu *calxeda_idle_cpuidle_devices;
+
+static inline unsigned int get_auxcr(void)
+{
+ unsigned int val;
+ asm("mrc p15, 0, %0, c1, c0, 1 @ get AUXCR" : "=r" (val) : : "cc");
+ return val;
+}
+
+static inline void set_auxcr(unsigned int val)
+{
+ asm volatile("mcr p15, 0, %0, c1, c0, 1 @ set AUXCR"
+ : : "r" (val) : "cc");
+ isb();
+}
+
+static noinline void calxeda_idle_restore(void)
+{
+ set_cr(get_cr() | CR_C);
+ set_auxcr(get_auxcr() | 0x40);
+ scu_power_mode(scu_base_addr, SCU_PM_NORMAL);
+}
+
+static int calxeda_idle_finish(unsigned long val)
+{
+ /* Already flushed cache, but do it again as the outer cache functions
+ * dirty the cache with spinlocks */
+ flush_cache_all();
+
+ set_auxcr(get_auxcr() & ~0x40);
+ set_cr(get_cr() & ~CR_C);
+
+ scu_power_mode(scu_base_addr, SCU_PM_DORMANT);
+
+ cpu_do_idle();
+
+ /* Restore things if we didn't enter power-gating */
+ calxeda_idle_restore();
+ return 1;
+}
+
+static int calxeda_pwrdown_idle(struct cpuidle_device *dev,
+ struct cpuidle_driver *drv,
+ int index)
+{
+ highbank_set_cpu_jump(smp_processor_id(), cpu_resume);
+ cpu_suspend(0, calxeda_idle_finish);
+ return index;
+}
+
+static void calxeda_idle_cpuidle_devices_uninit(void)
+{
+ int i;
+ struct cpuidle_device *dev;
+
+ for_each_possible_cpu(i) {
+ dev = per_cpu_ptr(calxeda_idle_cpuidle_devices, i);
+ cpuidle_unregister_device(dev);
+ }
+
+ free_percpu(calxeda_idle_cpuidle_devices);
+}
+
+static struct cpuidle_driver calxeda_idle_driver = {
+ .name = "calxeda_idle",
+ .en_core_tk_irqen = 1,
+ .states = {
+ ARM_CPUIDLE_WFI_STATE,
+ {
+ .name = "PG",
+ .desc = "Power Gate",
+ .flags = CPUIDLE_FLAG_TIME_VALID,
+ .exit_latency = 30,
+ .power_usage = 50,
+ .target_residency = 200,
+ .enter = calxeda_pwrdown_idle,
+ },
+ },
+ .state_count = 2,
+};
+
+static int __init calxeda_cpuidle_init(void)
+{
+ int cpu_id;
+ int ret;
+ struct cpuidle_device *dev;
+ struct cpuidle_driver *drv = &calxeda_idle_driver;
+
+ if (!of_machine_is_compatible("calxeda,highbank"))
+ return -ENODEV;
+
+ ret = cpuidle_register_driver(drv);
+ if (ret)
+ return ret;
+
+ calxeda_idle_cpuidle_devices = alloc_percpu(struct cpuidle_device);
+ if (calxeda_idle_cpuidle_devices == NULL) {
+ ret = -ENOMEM;
+ goto unregister_drv;
+ }
+
+ /* initialize state data for each cpuidle_device */
+ for_each_possible_cpu(cpu_id) {
+ dev = per_cpu_ptr(calxeda_idle_cpuidle_devices, cpu_id);
+ dev->cpu = cpu_id;
+ dev->state_count = drv->state_count;
+
+ ret = cpuidle_register_device(dev);
+ if (ret) {
+ pr_err("Failed to register cpu %u, error: %d\n",
+ cpu_id, ret);
+ goto uninit;
+ }
+ }
+
+ return 0;
+
+uninit:
+ calxeda_idle_cpuidle_devices_uninit();
+unregister_drv:
+ cpuidle_unregister_driver(drv);
+ return ret;
+}
+module_init(calxeda_cpuidle_init);
diff --git a/drivers/irqchip/Kconfig b/drivers/irqchip/Kconfig
index 1bb8bf6d7fd..62ca575701d 100644
--- a/drivers/irqchip/Kconfig
+++ b/drivers/irqchip/Kconfig
@@ -1 +1,8 @@
-# empty
+config VERSATILE_FPGA_IRQ
+ bool
+ select IRQ_DOMAIN
+
+config VERSATILE_FPGA_IRQ_NR
+ int
+ default 4
+ depends on VERSATILE_FPGA_IRQ
diff --git a/drivers/irqchip/Makefile b/drivers/irqchip/Makefile
index 054321db435..02bd37a6187 100644
--- a/drivers/irqchip/Makefile
+++ b/drivers/irqchip/Makefile
@@ -1 +1,3 @@
obj-$(CONFIG_ARCH_BCM2835) += irq-bcm2835.o
+obj-$(CONFIG_ARCH_SUNXI) += irq-sunxi.o
+obj-$(CONFIG_VERSATILE_FPGA_IRQ) += irq-versatile-fpga.o
diff --git a/drivers/irqchip/irq-sunxi.c b/drivers/irqchip/irq-sunxi.c
new file mode 100644
index 00000000000..10974fa4265
--- /dev/null
+++ b/drivers/irqchip/irq-sunxi.c
@@ -0,0 +1,151 @@
+/*
+ * Allwinner A1X SoCs IRQ chip driver.
+ *
+ * Copyright (C) 2012 Maxime Ripard
+ *
+ * Maxime Ripard <maxime.ripard@free-electrons.com>
+ *
+ * Based on code from
+ * Allwinner Technology Co., Ltd. <www.allwinnertech.com>
+ * Benn Huang <benn@allwinnertech.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+
+#include <linux/irqchip/sunxi.h>
+
+#define SUNXI_IRQ_VECTOR_REG 0x00
+#define SUNXI_IRQ_PROTECTION_REG 0x08
+#define SUNXI_IRQ_NMI_CTRL_REG 0x0c
+#define SUNXI_IRQ_PENDING_REG(x) (0x10 + 0x4 * x)
+#define SUNXI_IRQ_FIQ_PENDING_REG(x) (0x20 + 0x4 * x)
+#define SUNXI_IRQ_ENABLE_REG(x) (0x40 + 0x4 * x)
+#define SUNXI_IRQ_MASK_REG(x) (0x50 + 0x4 * x)
+
+static void __iomem *sunxi_irq_base;
+static struct irq_domain *sunxi_irq_domain;
+
+void sunxi_irq_ack(struct irq_data *irqd)
+{
+ unsigned int irq = irqd_to_hwirq(irqd);
+ unsigned int irq_off = irq % 32;
+ int reg = irq / 32;
+ u32 val;
+
+ val = readl(sunxi_irq_base + SUNXI_IRQ_PENDING_REG(reg));
+ writel(val | (1 << irq_off),
+ sunxi_irq_base + SUNXI_IRQ_PENDING_REG(reg));
+}
+
+static void sunxi_irq_mask(struct irq_data *irqd)
+{
+ unsigned int irq = irqd_to_hwirq(irqd);
+ unsigned int irq_off = irq % 32;
+ int reg = irq / 32;
+ u32 val;
+
+ val = readl(sunxi_irq_base + SUNXI_IRQ_ENABLE_REG(reg));
+ writel(val & ~(1 << irq_off),
+ sunxi_irq_base + SUNXI_IRQ_ENABLE_REG(reg));
+}
+
+static void sunxi_irq_unmask(struct irq_data *irqd)
+{
+ unsigned int irq = irqd_to_hwirq(irqd);
+ unsigned int irq_off = irq % 32;
+ int reg = irq / 32;
+ u32 val;
+
+ val = readl(sunxi_irq_base + SUNXI_IRQ_ENABLE_REG(reg));
+ writel(val | (1 << irq_off),
+ sunxi_irq_base + SUNXI_IRQ_ENABLE_REG(reg));
+}
+
+static struct irq_chip sunxi_irq_chip = {
+ .name = "sunxi_irq",
+ .irq_ack = sunxi_irq_ack,
+ .irq_mask = sunxi_irq_mask,
+ .irq_unmask = sunxi_irq_unmask,
+};
+
+static int sunxi_irq_map(struct irq_domain *d, unsigned int virq,
+ irq_hw_number_t hw)
+{
+ irq_set_chip_and_handler(virq, &sunxi_irq_chip,
+ handle_level_irq);
+ set_irq_flags(virq, IRQF_VALID | IRQF_PROBE);
+
+ return 0;
+}
+
+static struct irq_domain_ops sunxi_irq_ops = {
+ .map = sunxi_irq_map,
+ .xlate = irq_domain_xlate_onecell,
+};
+
+static int __init sunxi_of_init(struct device_node *node,
+ struct device_node *parent)
+{
+ sunxi_irq_base = of_iomap(node, 0);
+ if (!sunxi_irq_base)
+ panic("%s: unable to map IC registers\n",
+ node->full_name);
+
+ /* Disable all interrupts */
+ writel(0, sunxi_irq_base + SUNXI_IRQ_ENABLE_REG(0));
+ writel(0, sunxi_irq_base + SUNXI_IRQ_ENABLE_REG(1));
+ writel(0, sunxi_irq_base + SUNXI_IRQ_ENABLE_REG(2));
+
+ /* Mask all the interrupts */
+ writel(0, sunxi_irq_base + SUNXI_IRQ_MASK_REG(0));
+ writel(0, sunxi_irq_base + SUNXI_IRQ_MASK_REG(1));
+ writel(0, sunxi_irq_base + SUNXI_IRQ_MASK_REG(2));
+
+ /* Clear all the pending interrupts */
+ writel(0xffffffff, sunxi_irq_base + SUNXI_IRQ_PENDING_REG(0));
+ writel(0xffffffff, sunxi_irq_base + SUNXI_IRQ_PENDING_REG(1));
+ writel(0xffffffff, sunxi_irq_base + SUNXI_IRQ_PENDING_REG(2));
+
+ /* Enable protection mode */
+ writel(0x01, sunxi_irq_base + SUNXI_IRQ_PROTECTION_REG);
+
+ /* Configure the external interrupt source type */
+ writel(0x00, sunxi_irq_base + SUNXI_IRQ_NMI_CTRL_REG);
+
+ sunxi_irq_domain = irq_domain_add_linear(node, 3 * 32,
+ &sunxi_irq_ops, NULL);
+ if (!sunxi_irq_domain)
+ panic("%s: unable to create IRQ domain\n", node->full_name);
+
+ return 0;
+}
+
+static struct of_device_id sunxi_irq_dt_ids[] __initconst = {
+ { .compatible = "allwinner,sunxi-ic", .data = sunxi_of_init },
+ { }
+};
+
+void __init sunxi_init_irq(void)
+{
+ of_irq_init(sunxi_irq_dt_ids);
+}
+
+asmlinkage void __exception_irq_entry sunxi_handle_irq(struct pt_regs *regs)
+{
+ u32 irq, hwirq;
+
+ hwirq = readl(sunxi_irq_base + SUNXI_IRQ_VECTOR_REG) >> 2;
+ while (hwirq != 0) {
+ irq = irq_find_mapping(sunxi_irq_domain, hwirq);
+ handle_IRQ(irq, regs);
+ hwirq = readl(sunxi_irq_base + SUNXI_IRQ_VECTOR_REG) >> 2;
+ }
+}
diff --git a/drivers/irqchip/irq-versatile-fpga.c b/drivers/irqchip/irq-versatile-fpga.c
new file mode 100644
index 00000000000..9dbd82b716d
--- /dev/null
+++ b/drivers/irqchip/irq-versatile-fpga.c
@@ -0,0 +1,203 @@
+/*
+ * Support for Versatile FPGA-based IRQ controllers
+ */
+#include <linux/bitops.h>
+#include <linux/irq.h>
+#include <linux/io.h>
+#include <linux/irqchip/versatile-fpga.h>
+#include <linux/irqdomain.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+
+#include <asm/exception.h>
+#include <asm/mach/irq.h>
+
+#define IRQ_STATUS 0x00
+#define IRQ_RAW_STATUS 0x04
+#define IRQ_ENABLE_SET 0x08
+#define IRQ_ENABLE_CLEAR 0x0c
+#define INT_SOFT_SET 0x10
+#define INT_SOFT_CLEAR 0x14
+#define FIQ_STATUS 0x20
+#define FIQ_RAW_STATUS 0x24
+#define FIQ_ENABLE 0x28
+#define FIQ_ENABLE_SET 0x28
+#define FIQ_ENABLE_CLEAR 0x2C
+
+/**
+ * struct fpga_irq_data - irq data container for the FPGA IRQ controller
+ * @base: memory offset in virtual memory
+ * @chip: chip container for this instance
+ * @domain: IRQ domain for this instance
+ * @valid: mask for valid IRQs on this controller
+ * @used_irqs: number of active IRQs on this controller
+ */
+struct fpga_irq_data {
+ void __iomem *base;
+ struct irq_chip chip;
+ u32 valid;
+ struct irq_domain *domain;
+ u8 used_irqs;
+};
+
+/* we cannot allocate memory when the controllers are initially registered */
+static struct fpga_irq_data fpga_irq_devices[CONFIG_VERSATILE_FPGA_IRQ_NR];
+static int fpga_irq_id;
+
+static void fpga_irq_mask(struct irq_data *d)
+{
+ struct fpga_irq_data *f = irq_data_get_irq_chip_data(d);
+ u32 mask = 1 << d->hwirq;
+
+ writel(mask, f->base + IRQ_ENABLE_CLEAR);
+}
+
+static void fpga_irq_unmask(struct irq_data *d)
+{
+ struct fpga_irq_data *f = irq_data_get_irq_chip_data(d);
+ u32 mask = 1 << d->hwirq;
+
+ writel(mask, f->base + IRQ_ENABLE_SET);
+}
+
+static void fpga_irq_handle(unsigned int irq, struct irq_desc *desc)
+{
+ struct fpga_irq_data *f = irq_desc_get_handler_data(desc);
+ u32 status = readl(f->base + IRQ_STATUS);
+
+ if (status == 0) {
+ do_bad_IRQ(irq, desc);
+ return;
+ }
+
+ do {
+ irq = ffs(status) - 1;
+ status &= ~(1 << irq);
+ generic_handle_irq(irq_find_mapping(f->domain, irq));
+ } while (status);
+}
+
+/*
+ * Handle each interrupt in a single FPGA IRQ controller. Returns non-zero
+ * if we've handled at least one interrupt. This does a single read of the
+ * status register and handles all interrupts in order from LSB first.
+ */
+static int handle_one_fpga(struct fpga_irq_data *f, struct pt_regs *regs)
+{
+ int handled = 0;
+ int irq;
+ u32 status;
+
+ while ((status = readl(f->base + IRQ_STATUS))) {
+ irq = ffs(status) - 1;
+ handle_IRQ(irq_find_mapping(f->domain, irq), regs);
+ handled = 1;
+ }
+
+ return handled;
+}
+
+/*
+ * Keep iterating over all registered FPGA IRQ controllers until there are
+ * no pending interrupts.
+ */
+asmlinkage void __exception_irq_entry fpga_handle_irq(struct pt_regs *regs)
+{
+ int i, handled;
+
+ do {
+ for (i = 0, handled = 0; i < fpga_irq_id; ++i)
+ handled |= handle_one_fpga(&fpga_irq_devices[i], regs);
+ } while (handled);
+}
+
+static int fpga_irqdomain_map(struct irq_domain *d, unsigned int irq,
+ irq_hw_number_t hwirq)
+{
+ struct fpga_irq_data *f = d->host_data;
+
+ /* Skip invalid IRQs, only register handlers for the real ones */
+ if (!(f->valid & BIT(hwirq)))
+ return -ENOTSUPP;
+ irq_set_chip_data(irq, f);
+ irq_set_chip_and_handler(irq, &f->chip,
+ handle_level_irq);
+ set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
+ return 0;
+}
+
+static struct irq_domain_ops fpga_irqdomain_ops = {
+ .map = fpga_irqdomain_map,
+ .xlate = irq_domain_xlate_onetwocell,
+};
+
+void __init fpga_irq_init(void __iomem *base, const char *name, int irq_start,
+ int parent_irq, u32 valid, struct device_node *node)
+{
+ struct fpga_irq_data *f;
+ int i;
+
+ if (fpga_irq_id >= ARRAY_SIZE(fpga_irq_devices)) {
+ pr_err("%s: too few FPGA IRQ controllers, increase CONFIG_PLAT_VERSATILE_FPGA_IRQ_NR\n", __func__);
+ return;
+ }
+ f = &fpga_irq_devices[fpga_irq_id];
+ f->base = base;
+ f->chip.name = name;
+ f->chip.irq_ack = fpga_irq_mask;
+ f->chip.irq_mask = fpga_irq_mask;
+ f->chip.irq_unmask = fpga_irq_unmask;
+ f->valid = valid;
+
+ if (parent_irq != -1) {
+ irq_set_handler_data(parent_irq, f);
+ irq_set_chained_handler(parent_irq, fpga_irq_handle);
+ }
+
+ /* This will also allocate irq descriptors */
+ f->domain = irq_domain_add_simple(node, fls(valid), irq_start,
+ &fpga_irqdomain_ops, f);
+
+ /* This will allocate all valid descriptors in the linear case */
+ for (i = 0; i < fls(valid); i++)
+ if (valid & BIT(i)) {
+ if (!irq_start)
+ irq_create_mapping(f->domain, i);
+ f->used_irqs++;
+ }
+
+ pr_info("FPGA IRQ chip %d \"%s\" @ %p, %u irqs\n",
+ fpga_irq_id, name, base, f->used_irqs);
+
+ fpga_irq_id++;
+}
+
+#ifdef CONFIG_OF
+int __init fpga_irq_of_init(struct device_node *node,
+ struct device_node *parent)
+{
+ void __iomem *base;
+ u32 clear_mask;
+ u32 valid_mask;
+
+ if (WARN_ON(!node))
+ return -ENODEV;
+
+ base = of_iomap(node, 0);
+ WARN(!base, "unable to map fpga irq registers\n");
+
+ if (of_property_read_u32(node, "clear-mask", &clear_mask))
+ clear_mask = 0;
+
+ if (of_property_read_u32(node, "valid-mask", &valid_mask))
+ valid_mask = 0;
+
+ fpga_irq_init(base, node->name, 0, -1, valid_mask, node);
+
+ writel(clear_mask, base + IRQ_ENABLE_CLEAR);
+ writel(clear_mask, base + FIQ_ENABLE_CLEAR);
+
+ return 0;
+}
+#endif
diff --git a/drivers/media/platform/soc_camera/mx2_camera.c b/drivers/media/platform/soc_camera/mx2_camera.c
index 8ac9b72b5ec..791cd1d54a7 100644
--- a/drivers/media/platform/soc_camera/mx2_camera.c
+++ b/drivers/media/platform/soc_camera/mx2_camera.c
@@ -278,7 +278,8 @@ struct mx2_camera_dev {
struct device *dev;
struct soc_camera_host soc_host;
struct soc_camera_device *icd;
- struct clk *clk_csi, *clk_emma_ahb, *clk_emma_ipg;
+ struct clk *clk_emma_ahb, *clk_emma_ipg;
+ struct clk *clk_csi_ahb, *clk_csi_per;
void __iomem *base_csi, *base_emma;
@@ -464,7 +465,8 @@ static void mx2_camera_deactivate(struct mx2_camera_dev *pcdev)
{
unsigned long flags;
- clk_disable_unprepare(pcdev->clk_csi);
+ clk_disable_unprepare(pcdev->clk_csi_ahb);
+ clk_disable_unprepare(pcdev->clk_csi_per);
writel(0, pcdev->base_csi + CSICR1);
if (is_imx27_camera(pcdev)) {
writel(0, pcdev->base_emma + PRP_CNTL);
@@ -492,10 +494,14 @@ static int mx2_camera_add_device(struct soc_camera_device *icd)
if (pcdev->icd)
return -EBUSY;
- ret = clk_prepare_enable(pcdev->clk_csi);
+ ret = clk_prepare_enable(pcdev->clk_csi_ahb);
if (ret < 0)
return ret;
+ ret = clk_prepare_enable(pcdev->clk_csi_per);
+ if (ret < 0)
+ goto exit_csi_ahb;
+
csicr1 = CSICR1_MCLKEN;
if (is_imx27_camera(pcdev))
@@ -512,6 +518,11 @@ static int mx2_camera_add_device(struct soc_camera_device *icd)
icd->devnum);
return 0;
+
+exit_csi_ahb:
+ clk_disable_unprepare(pcdev->clk_csi_ahb);
+
+ return ret;
}
static void mx2_camera_remove_device(struct soc_camera_device *icd)
@@ -1777,10 +1788,17 @@ static int __devinit mx2_camera_probe(struct platform_device *pdev)
break;
}
- pcdev->clk_csi = devm_clk_get(&pdev->dev, "ahb");
- if (IS_ERR(pcdev->clk_csi)) {
- dev_err(&pdev->dev, "Could not get csi clock\n");
- err = PTR_ERR(pcdev->clk_csi);
+ pcdev->clk_csi_ahb = devm_clk_get(&pdev->dev, "ahb");
+ if (IS_ERR(pcdev->clk_csi_ahb)) {
+ dev_err(&pdev->dev, "Could not get csi ahb clock\n");
+ err = PTR_ERR(pcdev->clk_csi_ahb);
+ goto exit;
+ }
+
+ pcdev->clk_csi_per = devm_clk_get(&pdev->dev, "per");
+ if (IS_ERR(pcdev->clk_csi_per)) {
+ dev_err(&pdev->dev, "Could not get csi per clock\n");
+ err = PTR_ERR(pcdev->clk_csi_per);
goto exit;
}
@@ -1790,12 +1808,13 @@ static int __devinit mx2_camera_probe(struct platform_device *pdev)
pcdev->platform_flags = pcdev->pdata->flags;
- rate = clk_round_rate(pcdev->clk_csi, pcdev->pdata->clk * 2);
+ rate = clk_round_rate(pcdev->clk_csi_per,
+ pcdev->pdata->clk * 2);
if (rate <= 0) {
err = -ENODEV;
goto exit;
}
- err = clk_set_rate(pcdev->clk_csi, rate);
+ err = clk_set_rate(pcdev->clk_csi_per, rate);
if (err < 0)
goto exit;
}
@@ -1853,7 +1872,7 @@ static int __devinit mx2_camera_probe(struct platform_device *pdev)
goto exit_free_emma;
dev_info(&pdev->dev, "MX2 Camera (CSI) driver probed, clock frequency: %ld\n",
- clk_get_rate(pcdev->clk_csi));
+ clk_get_rate(pcdev->clk_csi_per));
return 0;
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig
index 2c10938b356..94bdf83b4bc 100644
--- a/drivers/mfd/Kconfig
+++ b/drivers/mfd/Kconfig
@@ -1080,3 +1080,9 @@ config MCP_UCB1200_TS
depends on MCP_UCB1200 && INPUT
endmenu
+
+config VEXPRESS_CONFIG
+ bool
+ help
+ Platform configuration infrastructure for the ARM Ltd.
+ Versatile Express.
diff --git a/drivers/mfd/Makefile b/drivers/mfd/Makefile
index b53db06d1b4..69f260ae022 100644
--- a/drivers/mfd/Makefile
+++ b/drivers/mfd/Makefile
@@ -141,3 +141,4 @@ obj-$(CONFIG_MFD_RC5T583) += rc5t583.o rc5t583-irq.o
obj-$(CONFIG_MFD_SEC_CORE) += sec-core.o sec-irq.o
obj-$(CONFIG_MFD_SYSCON) += syscon.o
obj-$(CONFIG_MFD_LM3533) += lm3533-core.o lm3533-ctrlbank.o
+obj-$(CONFIG_VEXPRESS_CONFIG) += vexpress-config.o vexpress-sysreg.o
diff --git a/drivers/mfd/vexpress-config.c b/drivers/mfd/vexpress-config.c
new file mode 100644
index 00000000000..fae15d88075
--- /dev/null
+++ b/drivers/mfd/vexpress-config.c
@@ -0,0 +1,277 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Copyright (C) 2012 ARM Limited
+ */
+
+#define pr_fmt(fmt) "vexpress-config: " fmt
+
+#include <linux/bitops.h>
+#include <linux/completion.h>
+#include <linux/export.h>
+#include <linux/init.h>
+#include <linux/list.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/vexpress.h>
+
+
+#define VEXPRESS_CONFIG_MAX_BRIDGES 2
+
+struct vexpress_config_bridge {
+ struct device_node *node;
+ struct vexpress_config_bridge_info *info;
+ struct list_head transactions;
+ spinlock_t transactions_lock;
+} vexpress_config_bridges[VEXPRESS_CONFIG_MAX_BRIDGES];
+
+static DECLARE_BITMAP(vexpress_config_bridges_map,
+ ARRAY_SIZE(vexpress_config_bridges));
+static DEFINE_MUTEX(vexpress_config_bridges_mutex);
+
+struct vexpress_config_bridge *vexpress_config_bridge_register(
+ struct device_node *node,
+ struct vexpress_config_bridge_info *info)
+{
+ struct vexpress_config_bridge *bridge;
+ int i;
+
+ pr_debug("Registering bridge '%s'\n", info->name);
+
+ mutex_lock(&vexpress_config_bridges_mutex);
+ i = find_first_zero_bit(vexpress_config_bridges_map,
+ ARRAY_SIZE(vexpress_config_bridges));
+ if (i >= ARRAY_SIZE(vexpress_config_bridges)) {
+ pr_err("Can't register more bridges!\n");
+ mutex_unlock(&vexpress_config_bridges_mutex);
+ return NULL;
+ }
+ __set_bit(i, vexpress_config_bridges_map);
+ bridge = &vexpress_config_bridges[i];
+
+ bridge->node = node;
+ bridge->info = info;
+ INIT_LIST_HEAD(&bridge->transactions);
+ spin_lock_init(&bridge->transactions_lock);
+
+ mutex_unlock(&vexpress_config_bridges_mutex);
+
+ return bridge;
+}
+
+void vexpress_config_bridge_unregister(struct vexpress_config_bridge *bridge)
+{
+ struct vexpress_config_bridge __bridge = *bridge;
+ int i;
+
+ mutex_lock(&vexpress_config_bridges_mutex);
+ for (i = 0; i < ARRAY_SIZE(vexpress_config_bridges); i++)
+ if (&vexpress_config_bridges[i] == bridge)
+ __clear_bit(i, vexpress_config_bridges_map);
+ mutex_unlock(&vexpress_config_bridges_mutex);
+
+ WARN_ON(!list_empty(&__bridge.transactions));
+ while (!list_empty(&__bridge.transactions))
+ cpu_relax();
+}
+
+
+struct vexpress_config_func {
+ struct vexpress_config_bridge *bridge;
+ void *func;
+};
+
+struct vexpress_config_func *__vexpress_config_func_get(struct device *dev,
+ struct device_node *node)
+{
+ struct device_node *bridge_node;
+ struct vexpress_config_func *func;
+ int i;
+
+ if (WARN_ON(dev && node && dev->of_node != node))
+ return NULL;
+ if (dev && !node)
+ node = dev->of_node;
+
+ func = kzalloc(sizeof(*func), GFP_KERNEL);
+ if (!func)
+ return NULL;
+
+ bridge_node = of_node_get(node);
+ while (bridge_node) {
+ const __be32 *prop = of_get_property(bridge_node,
+ "arm,vexpress,config-bridge", NULL);
+
+ if (prop) {
+ bridge_node = of_find_node_by_phandle(
+ be32_to_cpup(prop));
+ break;
+ }
+
+ bridge_node = of_get_next_parent(bridge_node);
+ }
+
+ mutex_lock(&vexpress_config_bridges_mutex);
+ for (i = 0; i < ARRAY_SIZE(vexpress_config_bridges); i++) {
+ struct vexpress_config_bridge *bridge =
+ &vexpress_config_bridges[i];
+
+ if (test_bit(i, vexpress_config_bridges_map) &&
+ bridge->node == bridge_node) {
+ func->bridge = bridge;
+ func->func = bridge->info->func_get(dev, node);
+ break;
+ }
+ }
+ mutex_unlock(&vexpress_config_bridges_mutex);
+
+ if (!func->func) {
+ of_node_put(node);
+ kfree(func);
+ return NULL;
+ }
+
+ return func;
+}
+
+void vexpress_config_func_put(struct vexpress_config_func *func)
+{
+ func->bridge->info->func_put(func->func);
+ of_node_put(func->bridge->node);
+ kfree(func);
+}
+
+
+struct vexpress_config_trans {
+ struct vexpress_config_func *func;
+ int offset;
+ bool write;
+ u32 *data;
+ int status;
+ struct completion completion;
+ struct list_head list;
+};
+
+static void vexpress_config_dump_trans(const char *what,
+ struct vexpress_config_trans *trans)
+{
+ pr_debug("%s %s trans %p func 0x%p offset %d data 0x%x status %d\n",
+ what, trans->write ? "write" : "read", trans,
+ trans->func->func, trans->offset,
+ trans->data ? *trans->data : 0, trans->status);
+}
+
+static int vexpress_config_schedule(struct vexpress_config_trans *trans)
+{
+ int status;
+ struct vexpress_config_bridge *bridge = trans->func->bridge;
+ unsigned long flags;
+
+ init_completion(&trans->completion);
+ trans->status = -EFAULT;
+
+ spin_lock_irqsave(&bridge->transactions_lock, flags);
+
+ vexpress_config_dump_trans("Executing", trans);
+
+ if (list_empty(&bridge->transactions))
+ status = bridge->info->func_exec(trans->func->func,
+ trans->offset, trans->write, trans->data);
+ else
+ status = VEXPRESS_CONFIG_STATUS_WAIT;
+
+ switch (status) {
+ case VEXPRESS_CONFIG_STATUS_DONE:
+ vexpress_config_dump_trans("Finished", trans);
+ trans->status = status;
+ break;
+ case VEXPRESS_CONFIG_STATUS_WAIT:
+ list_add_tail(&trans->list, &bridge->transactions);
+ break;
+ }
+
+ spin_unlock_irqrestore(&bridge->transactions_lock, flags);
+
+ return status;
+}
+
+void vexpress_config_complete(struct vexpress_config_bridge *bridge,
+ int status)
+{
+ struct vexpress_config_trans *trans;
+ unsigned long flags;
+
+ spin_lock_irqsave(&bridge->transactions_lock, flags);
+
+ trans = list_first_entry(&bridge->transactions,
+ struct vexpress_config_trans, list);
+ vexpress_config_dump_trans("Completed", trans);
+
+ trans->status = status;
+ list_del(&trans->list);
+
+ if (!list_empty(&bridge->transactions)) {
+ vexpress_config_dump_trans("Pending", trans);
+
+ bridge->info->func_exec(trans->func->func, trans->offset,
+ trans->write, trans->data);
+ }
+ spin_unlock_irqrestore(&bridge->transactions_lock, flags);
+
+ complete(&trans->completion);
+}
+
+int vexpress_config_wait(struct vexpress_config_trans *trans)
+{
+ wait_for_completion(&trans->completion);
+
+ return trans->status;
+}
+
+
+int vexpress_config_read(struct vexpress_config_func *func, int offset,
+ u32 *data)
+{
+ struct vexpress_config_trans trans = {
+ .func = func,
+ .offset = offset,
+ .write = false,
+ .data = data,
+ .status = 0,
+ };
+ int status = vexpress_config_schedule(&trans);
+
+ if (status == VEXPRESS_CONFIG_STATUS_WAIT)
+ status = vexpress_config_wait(&trans);
+
+ return status;
+}
+EXPORT_SYMBOL(vexpress_config_read);
+
+int vexpress_config_write(struct vexpress_config_func *func, int offset,
+ u32 data)
+{
+ struct vexpress_config_trans trans = {
+ .func = func,
+ .offset = offset,
+ .write = true,
+ .data = &data,
+ .status = 0,
+ };
+ int status = vexpress_config_schedule(&trans);
+
+ if (status == VEXPRESS_CONFIG_STATUS_WAIT)
+ status = vexpress_config_wait(&trans);
+
+ return status;
+}
+EXPORT_SYMBOL(vexpress_config_write);
diff --git a/drivers/mfd/vexpress-sysreg.c b/drivers/mfd/vexpress-sysreg.c
new file mode 100644
index 00000000000..733c06bd2d1
--- /dev/null
+++ b/drivers/mfd/vexpress-sysreg.c
@@ -0,0 +1,475 @@
+/*
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * Copyright (C) 2012 ARM Limited
+ */
+
+#include <linux/err.h>
+#include <linux/gpio.h>
+#include <linux/io.h>
+#include <linux/leds.h>
+#include <linux/of_address.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/slab.h>
+#include <linux/stat.h>
+#include <linux/timer.h>
+#include <linux/vexpress.h>
+
+#define SYS_ID 0x000
+#define SYS_SW 0x004
+#define SYS_LED 0x008
+#define SYS_100HZ 0x024
+#define SYS_FLAGS 0x030
+#define SYS_FLAGSSET 0x030
+#define SYS_FLAGSCLR 0x034
+#define SYS_NVFLAGS 0x038
+#define SYS_NVFLAGSSET 0x038
+#define SYS_NVFLAGSCLR 0x03c
+#define SYS_MCI 0x048
+#define SYS_FLASH 0x04c
+#define SYS_CFGSW 0x058
+#define SYS_24MHZ 0x05c
+#define SYS_MISC 0x060
+#define SYS_DMA 0x064
+#define SYS_PROCID0 0x084
+#define SYS_PROCID1 0x088
+#define SYS_CFGDATA 0x0a0
+#define SYS_CFGCTRL 0x0a4
+#define SYS_CFGSTAT 0x0a8
+
+#define SYS_HBI_MASK 0xfff
+#define SYS_ID_HBI_SHIFT 16
+#define SYS_PROCIDx_HBI_SHIFT 0
+
+#define SYS_MCI_CARDIN (1 << 0)
+#define SYS_MCI_WPROT (1 << 1)
+
+#define SYS_FLASH_WPn (1 << 0)
+
+#define SYS_MISC_MASTERSITE (1 << 14)
+
+#define SYS_CFGCTRL_START (1 << 31)
+#define SYS_CFGCTRL_WRITE (1 << 30)
+#define SYS_CFGCTRL_DCC(n) (((n) & 0xf) << 26)
+#define SYS_CFGCTRL_FUNC(n) (((n) & 0x3f) << 20)
+#define SYS_CFGCTRL_SITE(n) (((n) & 0x3) << 16)
+#define SYS_CFGCTRL_POSITION(n) (((n) & 0xf) << 12)
+#define SYS_CFGCTRL_DEVICE(n) (((n) & 0xfff) << 0)
+
+#define SYS_CFGSTAT_ERR (1 << 1)
+#define SYS_CFGSTAT_COMPLETE (1 << 0)
+
+
+static void __iomem *vexpress_sysreg_base;
+static struct device *vexpress_sysreg_dev;
+static int vexpress_master_site;
+
+
+void vexpress_flags_set(u32 data)
+{
+ writel(~0, vexpress_sysreg_base + SYS_FLAGSCLR);
+ writel(data, vexpress_sysreg_base + SYS_FLAGSSET);
+}
+
+u32 vexpress_get_procid(int site)
+{
+ if (site == VEXPRESS_SITE_MASTER)
+ site = vexpress_master_site;
+
+ return readl(vexpress_sysreg_base + (site == VEXPRESS_SITE_DB1 ?
+ SYS_PROCID0 : SYS_PROCID1));
+}
+
+u32 vexpress_get_hbi(int site)
+{
+ u32 id;
+
+ switch (site) {
+ case VEXPRESS_SITE_MB:
+ id = readl(vexpress_sysreg_base + SYS_ID);
+ return (id >> SYS_ID_HBI_SHIFT) & SYS_HBI_MASK;
+ case VEXPRESS_SITE_MASTER:
+ case VEXPRESS_SITE_DB1:
+ case VEXPRESS_SITE_DB2:
+ id = vexpress_get_procid(site);
+ return (id >> SYS_PROCIDx_HBI_SHIFT) & SYS_HBI_MASK;
+ }
+
+ return ~0;
+}
+
+void __iomem *vexpress_get_24mhz_clock_base(void)
+{
+ return vexpress_sysreg_base + SYS_24MHZ;
+}
+
+
+static void vexpress_sysreg_find_prop(struct device_node *node,
+ const char *name, u32 *val)
+{
+ of_node_get(node);
+ while (node) {
+ if (of_property_read_u32(node, name, val) == 0) {
+ of_node_put(node);
+ return;
+ }
+ node = of_get_next_parent(node);
+ }
+}
+
+unsigned __vexpress_get_site(struct device *dev, struct device_node *node)
+{
+ u32 site = 0;
+
+ WARN_ON(dev && node && dev->of_node != node);
+ if (dev && !node)
+ node = dev->of_node;
+
+ if (node) {
+ vexpress_sysreg_find_prop(node, "arm,vexpress,site", &site);
+ } else if (dev && dev->bus == &platform_bus_type) {
+ struct platform_device *pdev = to_platform_device(dev);
+
+ if (pdev->num_resources == 1 &&
+ pdev->resource[0].flags == IORESOURCE_BUS)
+ site = pdev->resource[0].start;
+ } else if (dev && strncmp(dev_name(dev), "ct:", 3) == 0) {
+ site = VEXPRESS_SITE_MASTER;
+ }
+
+ if (site == VEXPRESS_SITE_MASTER)
+ site = vexpress_master_site;
+
+ return site;
+}
+
+
+struct vexpress_sysreg_config_func {
+ u32 template;
+ u32 device;
+};
+
+static struct vexpress_config_bridge *vexpress_sysreg_config_bridge;
+static struct timer_list vexpress_sysreg_config_timer;
+static u32 *vexpress_sysreg_config_data;
+static int vexpress_sysreg_config_tries;
+
+static void *vexpress_sysreg_config_func_get(struct device *dev,
+ struct device_node *node)
+{
+ struct vexpress_sysreg_config_func *config_func;
+ u32 site;
+ u32 position = 0;
+ u32 dcc = 0;
+ u32 func_device[2];
+ int err = -EFAULT;
+
+ if (node) {
+ of_node_get(node);
+ vexpress_sysreg_find_prop(node, "arm,vexpress,site", &site);
+ vexpress_sysreg_find_prop(node, "arm,vexpress,position",
+ &position);
+ vexpress_sysreg_find_prop(node, "arm,vexpress,dcc", &dcc);
+ err = of_property_read_u32_array(node,
+ "arm,vexpress-sysreg,func", func_device,
+ ARRAY_SIZE(func_device));
+ of_node_put(node);
+ } else if (dev && dev->bus == &platform_bus_type) {
+ struct platform_device *pdev = to_platform_device(dev);
+
+ if (pdev->num_resources == 1 &&
+ pdev->resource[0].flags == IORESOURCE_BUS) {
+ site = pdev->resource[0].start;
+ func_device[0] = pdev->resource[0].end;
+ func_device[1] = pdev->id;
+ err = 0;
+ }
+ }
+ if (err)
+ return NULL;
+
+ config_func = kzalloc(sizeof(*config_func), GFP_KERNEL);
+ if (!config_func)
+ return NULL;
+
+ config_func->template = SYS_CFGCTRL_DCC(dcc);
+ config_func->template |= SYS_CFGCTRL_FUNC(func_device[0]);
+ config_func->template |= SYS_CFGCTRL_SITE(site == VEXPRESS_SITE_MASTER ?
+ vexpress_master_site : site);
+ config_func->template |= SYS_CFGCTRL_POSITION(position);
+ config_func->device |= func_device[1];
+
+ dev_dbg(vexpress_sysreg_dev, "func 0x%p = 0x%x, %d\n", config_func,
+ config_func->template, config_func->device);
+
+ return config_func;
+}
+
+static void vexpress_sysreg_config_func_put(void *func)
+{
+ kfree(func);
+}
+
+static int vexpress_sysreg_config_func_exec(void *func, int offset,
+ bool write, u32 *data)
+{
+ int status;
+ struct vexpress_sysreg_config_func *config_func = func;
+ u32 command;
+
+ if (WARN_ON(!vexpress_sysreg_base))
+ return -ENOENT;
+
+ command = readl(vexpress_sysreg_base + SYS_CFGCTRL);
+ if (WARN_ON(command & SYS_CFGCTRL_START))
+ return -EBUSY;
+
+ command = SYS_CFGCTRL_START;
+ command |= write ? SYS_CFGCTRL_WRITE : 0;
+ command |= config_func->template;
+ command |= SYS_CFGCTRL_DEVICE(config_func->device + offset);
+
+ /* Use a canary for reads */
+ if (!write)
+ *data = 0xdeadbeef;
+
+ dev_dbg(vexpress_sysreg_dev, "command %x, data %x\n",
+ command, *data);
+ writel(*data, vexpress_sysreg_base + SYS_CFGDATA);
+ writel(0, vexpress_sysreg_base + SYS_CFGSTAT);
+ writel(command, vexpress_sysreg_base + SYS_CFGCTRL);
+ mb();
+
+ if (vexpress_sysreg_dev) {
+ /* Schedule completion check */
+ if (!write)
+ vexpress_sysreg_config_data = data;
+ vexpress_sysreg_config_tries = 100;
+ mod_timer(&vexpress_sysreg_config_timer,
+ jiffies + usecs_to_jiffies(100));
+ status = VEXPRESS_CONFIG_STATUS_WAIT;
+ } else {
+ /* Early execution, no timer available, have to spin */
+ u32 cfgstat;
+
+ do {
+ cpu_relax();
+ cfgstat = readl(vexpress_sysreg_base + SYS_CFGSTAT);
+ } while (!cfgstat);
+
+ if (!write && (cfgstat & SYS_CFGSTAT_COMPLETE))
+ *data = readl(vexpress_sysreg_base + SYS_CFGDATA);
+ status = VEXPRESS_CONFIG_STATUS_DONE;
+
+ if (cfgstat & SYS_CFGSTAT_ERR)
+ status = -EINVAL;
+ }
+
+ return status;
+}
+
+struct vexpress_config_bridge_info vexpress_sysreg_config_bridge_info = {
+ .name = "vexpress-sysreg",
+ .func_get = vexpress_sysreg_config_func_get,
+ .func_put = vexpress_sysreg_config_func_put,
+ .func_exec = vexpress_sysreg_config_func_exec,
+};
+
+static void vexpress_sysreg_config_complete(unsigned long data)
+{
+ int status = VEXPRESS_CONFIG_STATUS_DONE;
+ u32 cfgstat = readl(vexpress_sysreg_base + SYS_CFGSTAT);
+
+ if (cfgstat & SYS_CFGSTAT_ERR)
+ status = -EINVAL;
+ if (!vexpress_sysreg_config_tries--)
+ status = -ETIMEDOUT;
+
+ if (status < 0) {
+ dev_err(vexpress_sysreg_dev, "error %d\n", status);
+ } else if (!(cfgstat & SYS_CFGSTAT_COMPLETE)) {
+ mod_timer(&vexpress_sysreg_config_timer,
+ jiffies + usecs_to_jiffies(50));
+ return;
+ }
+
+ if (vexpress_sysreg_config_data) {
+ *vexpress_sysreg_config_data = readl(vexpress_sysreg_base +
+ SYS_CFGDATA);
+ dev_dbg(vexpress_sysreg_dev, "read data %x\n",
+ *vexpress_sysreg_config_data);
+ vexpress_sysreg_config_data = NULL;
+ }
+
+ vexpress_config_complete(vexpress_sysreg_config_bridge, status);
+}
+
+
+void __init vexpress_sysreg_early_init(void __iomem *base)
+{
+ struct device_node *node = of_find_compatible_node(NULL, NULL,
+ "arm,vexpress-sysreg");
+
+ if (node)
+ base = of_iomap(node, 0);
+
+ if (WARN_ON(!base))
+ return;
+
+ vexpress_sysreg_base = base;
+
+ if (readl(vexpress_sysreg_base + SYS_MISC) & SYS_MISC_MASTERSITE)
+ vexpress_master_site = VEXPRESS_SITE_DB2;
+ else
+ vexpress_master_site = VEXPRESS_SITE_DB1;
+
+ vexpress_sysreg_config_bridge = vexpress_config_bridge_register(
+ node, &vexpress_sysreg_config_bridge_info);
+ WARN_ON(!vexpress_sysreg_config_bridge);
+}
+
+void __init vexpress_sysreg_of_early_init(void)
+{
+ vexpress_sysreg_early_init(NULL);
+}
+
+
+static struct vexpress_sysreg_gpio {
+ unsigned long reg;
+ u32 value;
+} vexpress_sysreg_gpios[] = {
+ [VEXPRESS_GPIO_MMC_CARDIN] = {
+ .reg = SYS_MCI,
+ .value = SYS_MCI_CARDIN,
+ },
+ [VEXPRESS_GPIO_MMC_WPROT] = {
+ .reg = SYS_MCI,
+ .value = SYS_MCI_WPROT,
+ },
+ [VEXPRESS_GPIO_FLASH_WPn] = {
+ .reg = SYS_FLASH,
+ .value = SYS_FLASH_WPn,
+ },
+};
+
+static int vexpress_sysreg_gpio_direction_input(struct gpio_chip *chip,
+ unsigned offset)
+{
+ return 0;
+}
+
+static int vexpress_sysreg_gpio_direction_output(struct gpio_chip *chip,
+ unsigned offset, int value)
+{
+ return 0;
+}
+
+static int vexpress_sysreg_gpio_get(struct gpio_chip *chip,
+ unsigned offset)
+{
+ struct vexpress_sysreg_gpio *gpio = &vexpress_sysreg_gpios[offset];
+ u32 reg_value = readl(vexpress_sysreg_base + gpio->reg);
+
+ return !!(reg_value & gpio->value);
+}
+
+static void vexpress_sysreg_gpio_set(struct gpio_chip *chip,
+ unsigned offset, int value)
+{
+ struct vexpress_sysreg_gpio *gpio = &vexpress_sysreg_gpios[offset];
+ u32 reg_value = readl(vexpress_sysreg_base + gpio->reg);
+
+ if (value)
+ reg_value |= gpio->value;
+ else
+ reg_value &= ~gpio->value;
+
+ writel(reg_value, vexpress_sysreg_base + gpio->reg);
+}
+
+static struct gpio_chip vexpress_sysreg_gpio_chip = {
+ .label = "vexpress-sysreg",
+ .direction_input = vexpress_sysreg_gpio_direction_input,
+ .direction_output = vexpress_sysreg_gpio_direction_output,
+ .get = vexpress_sysreg_gpio_get,
+ .set = vexpress_sysreg_gpio_set,
+ .ngpio = ARRAY_SIZE(vexpress_sysreg_gpios),
+ .base = 0,
+};
+
+
+static ssize_t vexpress_sysreg_sys_id_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ return sprintf(buf, "0x%08x\n", readl(vexpress_sysreg_base + SYS_ID));
+}
+
+DEVICE_ATTR(sys_id, S_IRUGO, vexpress_sysreg_sys_id_show, NULL);
+
+static int __devinit vexpress_sysreg_probe(struct platform_device *pdev)
+{
+ int err;
+ struct resource *res = platform_get_resource(pdev,
+ IORESOURCE_MEM, 0);
+
+ if (!devm_request_mem_region(&pdev->dev, res->start,
+ resource_size(res), pdev->name)) {
+ dev_err(&pdev->dev, "Failed to request memory region!\n");
+ return -EBUSY;
+ }
+
+ if (!vexpress_sysreg_base)
+ vexpress_sysreg_base = devm_ioremap(&pdev->dev, res->start,
+ resource_size(res));
+
+ if (!vexpress_sysreg_base) {
+ dev_err(&pdev->dev, "Failed to obtain base address!\n");
+ return -EFAULT;
+ }
+
+ setup_timer(&vexpress_sysreg_config_timer,
+ vexpress_sysreg_config_complete, 0);
+
+ vexpress_sysreg_gpio_chip.dev = &pdev->dev;
+ err = gpiochip_add(&vexpress_sysreg_gpio_chip);
+ if (err) {
+ vexpress_config_bridge_unregister(
+ vexpress_sysreg_config_bridge);
+ dev_err(&pdev->dev, "Failed to register GPIO chip! (%d)\n",
+ err);
+ return err;
+ }
+
+ vexpress_sysreg_dev = &pdev->dev;
+
+ device_create_file(vexpress_sysreg_dev, &dev_attr_sys_id);
+
+ return 0;
+}
+
+static const struct of_device_id vexpress_sysreg_match[] = {
+ { .compatible = "arm,vexpress-sysreg", },
+ {},
+};
+
+static struct platform_driver vexpress_sysreg_driver = {
+ .driver = {
+ .name = "vexpress-sysreg",
+ .of_match_table = vexpress_sysreg_match,
+ },
+ .probe = vexpress_sysreg_probe,
+};
+
+static int __init vexpress_sysreg_init(void)
+{
+ return platform_driver_register(&vexpress_sysreg_driver);
+}
+core_initcall(vexpress_sysreg_init);
diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig
index 2e47c2ed0a2..df304868beb 100644
--- a/drivers/mtd/maps/Kconfig
+++ b/drivers/mtd/maps/Kconfig
@@ -324,13 +324,6 @@ config MTD_SOLUTIONENGINE
This enables access to the flash chips on the Hitachi SolutionEngine and
similar boards. Say 'Y' if you are building a kernel for such a board.
-config MTD_CDB89712
- tristate "Cirrus CDB89712 evaluation board mappings"
- depends on MTD_CFI && ARCH_CDB89712
- help
- This enables access to the flash or ROM chips on the CDB89712 board.
- If you have such a board, say 'Y'.
-
config MTD_SA1100
tristate "CFI Flash device mapped on StrongARM SA11x0"
depends on MTD_CFI && ARCH_SA1100
diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile
index deb43e9a1e7..a0240edd196 100644
--- a/drivers/mtd/maps/Makefile
+++ b/drivers/mtd/maps/Makefile
@@ -7,7 +7,6 @@ obj-$(CONFIG_MTD) += map_funcs.o
endif
# Chip mappings
-obj-$(CONFIG_MTD_CDB89712) += cdb89712.o
obj-$(CONFIG_MTD_CFI_FLAGADM) += cfi_flagadm.o
obj-$(CONFIG_MTD_DC21285) += dc21285.o
obj-$(CONFIG_MTD_DILNETPC) += dilnetpc.o
diff --git a/drivers/mtd/maps/cdb89712.c b/drivers/mtd/maps/cdb89712.c
deleted file mode 100644
index c29cbf87ea0..00000000000
--- a/drivers/mtd/maps/cdb89712.c
+++ /dev/null
@@ -1,278 +0,0 @@
-/*
- * Flash on Cirrus CDB89712
- *
- */
-
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/ioport.h>
-#include <linux/init.h>
-#include <asm/io.h>
-#include <mach/hardware.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/partitions.h>
-
-/* dynamic ioremap() areas */
-#define FLASH_START 0x00000000
-#define FLASH_SIZE 0x800000
-#define FLASH_WIDTH 4
-
-#define SRAM_START 0x60000000
-#define SRAM_SIZE 0xc000
-#define SRAM_WIDTH 4
-
-#define BOOTROM_START 0x70000000
-#define BOOTROM_SIZE 0x80
-#define BOOTROM_WIDTH 4
-
-
-static struct mtd_info *flash_mtd;
-
-struct map_info cdb89712_flash_map = {
- .name = "flash",
- .size = FLASH_SIZE,
- .bankwidth = FLASH_WIDTH,
- .phys = FLASH_START,
-};
-
-struct resource cdb89712_flash_resource = {
- .name = "Flash",
- .start = FLASH_START,
- .end = FLASH_START + FLASH_SIZE - 1,
- .flags = IORESOURCE_IO | IORESOURCE_BUSY,
-};
-
-static int __init init_cdb89712_flash (void)
-{
- int err;
-
- if (request_resource (&ioport_resource, &cdb89712_flash_resource)) {
- printk(KERN_NOTICE "Failed to reserve Cdb89712 FLASH space\n");
- err = -EBUSY;
- goto out;
- }
-
- cdb89712_flash_map.virt = ioremap(FLASH_START, FLASH_SIZE);
- if (!cdb89712_flash_map.virt) {
- printk(KERN_NOTICE "Failed to ioremap Cdb89712 FLASH space\n");
- err = -EIO;
- goto out_resource;
- }
- simple_map_init(&cdb89712_flash_map);
- flash_mtd = do_map_probe("cfi_probe", &cdb89712_flash_map);
- if (!flash_mtd) {
- flash_mtd = do_map_probe("map_rom", &cdb89712_flash_map);
- if (flash_mtd)
- flash_mtd->erasesize = 0x10000;
- }
- if (!flash_mtd) {
- printk("FLASH probe failed\n");
- err = -ENXIO;
- goto out_ioremap;
- }
-
- flash_mtd->owner = THIS_MODULE;
-
- if (mtd_device_register(flash_mtd, NULL, 0)) {
- printk("FLASH device addition failed\n");
- err = -ENOMEM;
- goto out_probe;
- }
-
- return 0;
-
-out_probe:
- map_destroy(flash_mtd);
- flash_mtd = 0;
-out_ioremap:
- iounmap((void *)cdb89712_flash_map.virt);
-out_resource:
- release_resource (&cdb89712_flash_resource);
-out:
- return err;
-}
-
-
-
-
-
-static struct mtd_info *sram_mtd;
-
-struct map_info cdb89712_sram_map = {
- .name = "SRAM",
- .size = SRAM_SIZE,
- .bankwidth = SRAM_WIDTH,
- .phys = SRAM_START,
-};
-
-struct resource cdb89712_sram_resource = {
- .name = "SRAM",
- .start = SRAM_START,
- .end = SRAM_START + SRAM_SIZE - 1,
- .flags = IORESOURCE_IO | IORESOURCE_BUSY,
-};
-
-static int __init init_cdb89712_sram (void)
-{
- int err;
-
- if (request_resource (&ioport_resource, &cdb89712_sram_resource)) {
- printk(KERN_NOTICE "Failed to reserve Cdb89712 SRAM space\n");
- err = -EBUSY;
- goto out;
- }
-
- cdb89712_sram_map.virt = ioremap(SRAM_START, SRAM_SIZE);
- if (!cdb89712_sram_map.virt) {
- printk(KERN_NOTICE "Failed to ioremap Cdb89712 SRAM space\n");
- err = -EIO;
- goto out_resource;
- }
- simple_map_init(&cdb89712_sram_map);
- sram_mtd = do_map_probe("map_ram", &cdb89712_sram_map);
- if (!sram_mtd) {
- printk("SRAM probe failed\n");
- err = -ENXIO;
- goto out_ioremap;
- }
-
- sram_mtd->owner = THIS_MODULE;
- sram_mtd->erasesize = 16;
-
- if (mtd_device_register(sram_mtd, NULL, 0)) {
- printk("SRAM device addition failed\n");
- err = -ENOMEM;
- goto out_probe;
- }
-
- return 0;
-
-out_probe:
- map_destroy(sram_mtd);
- sram_mtd = 0;
-out_ioremap:
- iounmap((void *)cdb89712_sram_map.virt);
-out_resource:
- release_resource (&cdb89712_sram_resource);
-out:
- return err;
-}
-
-
-
-
-
-
-
-static struct mtd_info *bootrom_mtd;
-
-struct map_info cdb89712_bootrom_map = {
- .name = "BootROM",
- .size = BOOTROM_SIZE,
- .bankwidth = BOOTROM_WIDTH,
- .phys = BOOTROM_START,
-};
-
-struct resource cdb89712_bootrom_resource = {
- .name = "BootROM",
- .start = BOOTROM_START,
- .end = BOOTROM_START + BOOTROM_SIZE - 1,
- .flags = IORESOURCE_IO | IORESOURCE_BUSY,
-};
-
-static int __init init_cdb89712_bootrom (void)
-{
- int err;
-
- if (request_resource (&ioport_resource, &cdb89712_bootrom_resource)) {
- printk(KERN_NOTICE "Failed to reserve Cdb89712 BOOTROM space\n");
- err = -EBUSY;
- goto out;
- }
-
- cdb89712_bootrom_map.virt = ioremap(BOOTROM_START, BOOTROM_SIZE);
- if (!cdb89712_bootrom_map.virt) {
- printk(KERN_NOTICE "Failed to ioremap Cdb89712 BootROM space\n");
- err = -EIO;
- goto out_resource;
- }
- simple_map_init(&cdb89712_bootrom_map);
- bootrom_mtd = do_map_probe("map_rom", &cdb89712_bootrom_map);
- if (!bootrom_mtd) {
- printk("BootROM probe failed\n");
- err = -ENXIO;
- goto out_ioremap;
- }
-
- bootrom_mtd->owner = THIS_MODULE;
- bootrom_mtd->erasesize = 0x10000;
-
- if (mtd_device_register(bootrom_mtd, NULL, 0)) {
- printk("BootROM device addition failed\n");
- err = -ENOMEM;
- goto out_probe;
- }
-
- return 0;
-
-out_probe:
- map_destroy(bootrom_mtd);
- bootrom_mtd = 0;
-out_ioremap:
- iounmap((void *)cdb89712_bootrom_map.virt);
-out_resource:
- release_resource (&cdb89712_bootrom_resource);
-out:
- return err;
-}
-
-
-
-
-
-static int __init init_cdb89712_maps(void)
-{
-
- printk(KERN_INFO "Cirrus CDB89712 MTD mappings:\n Flash 0x%x at 0x%x\n SRAM 0x%x at 0x%x\n BootROM 0x%x at 0x%x\n",
- FLASH_SIZE, FLASH_START, SRAM_SIZE, SRAM_START, BOOTROM_SIZE, BOOTROM_START);
-
- init_cdb89712_flash();
- init_cdb89712_sram();
- init_cdb89712_bootrom();
-
- return 0;
-}
-
-
-static void __exit cleanup_cdb89712_maps(void)
-{
- if (sram_mtd) {
- mtd_device_unregister(sram_mtd);
- map_destroy(sram_mtd);
- iounmap((void *)cdb89712_sram_map.virt);
- release_resource (&cdb89712_sram_resource);
- }
-
- if (flash_mtd) {
- mtd_device_unregister(flash_mtd);
- map_destroy(flash_mtd);
- iounmap((void *)cdb89712_flash_map.virt);
- release_resource (&cdb89712_flash_resource);
- }
-
- if (bootrom_mtd) {
- mtd_device_unregister(bootrom_mtd);
- map_destroy(bootrom_mtd);
- iounmap((void *)cdb89712_bootrom_map.virt);
- release_resource (&cdb89712_bootrom_resource);
- }
-}
-
-module_init(init_cdb89712_maps);
-module_exit(cleanup_cdb89712_maps);
-
-MODULE_AUTHOR("Ray L");
-MODULE_DESCRIPTION("ARM CDB89712 map driver");
-MODULE_LICENSE("GPL");
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index 4883139460b..531807dec6b 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -49,13 +49,6 @@ config MTD_NAND_MUSEUM_IDS
NAND chips (page size 256 byte, erase size 4-8KiB). The IDs
of these chips were reused by later, larger chips.
-config MTD_NAND_AUTCPU12
- tristate "SmartMediaCard on autronix autcpu12 board"
- depends on ARCH_AUTCPU12
- help
- This enables the driver for the autronix autcpu12 board to
- access the SmartMediaCard.
-
config MTD_NAND_DENALI
depends on PCI
tristate "Support Denali NAND controller on Intel Moorestown"
@@ -86,12 +79,6 @@ config MTD_NAND_GPIO
help
This enables a GPIO based NAND flash driver.
-config MTD_NAND_SPIA
- tristate "NAND Flash device on SPIA board"
- depends on ARCH_P720T
- help
- If you had to ask, you don't have one. Say 'N'.
-
config MTD_NAND_AMS_DELTA
tristate "NAND Flash device on Amstrad E3"
depends on MACH_AMS_DELTA
diff --git a/drivers/mtd/nand/Makefile b/drivers/mtd/nand/Makefile
index 2cbd0916b73..6c7f2b3ca8a 100644
--- a/drivers/mtd/nand/Makefile
+++ b/drivers/mtd/nand/Makefile
@@ -9,9 +9,7 @@ obj-$(CONFIG_MTD_NAND_IDS) += nand_ids.o
obj-$(CONFIG_MTD_SM_COMMON) += sm_common.o
obj-$(CONFIG_MTD_NAND_CAFE) += cafe_nand.o
-obj-$(CONFIG_MTD_NAND_SPIA) += spia.o
obj-$(CONFIG_MTD_NAND_AMS_DELTA) += ams-delta.o
-obj-$(CONFIG_MTD_NAND_AUTCPU12) += autcpu12.o
obj-$(CONFIG_MTD_NAND_DENALI) += denali.o
obj-$(CONFIG_MTD_NAND_AU1550) += au1550nd.o
obj-$(CONFIG_MTD_NAND_BF5XX) += bf5xx_nand.o
diff --git a/drivers/mtd/nand/autcpu12.c b/drivers/mtd/nand/autcpu12.c
deleted file mode 100644
index 04769a49a7c..00000000000
--- a/drivers/mtd/nand/autcpu12.c
+++ /dev/null
@@ -1,237 +0,0 @@
-/*
- * drivers/mtd/autcpu12.c
- *
- * Copyright (c) 2002 Thomas Gleixner <tgxl@linutronix.de>
- *
- * Derived from drivers/mtd/spia.c
- * Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Overview:
- * This is a device driver for the NAND flash device found on the
- * autronix autcpu12 board, which is a SmartMediaCard. It supports
- * 16MiB, 32MiB and 64MiB cards.
- *
- *
- * 02-12-2002 TG Cleanup of module params
- *
- * 02-20-2002 TG adjusted for different rd/wr address support
- * added support for read device ready/busy line
- * added page_cache
- *
- * 10-06-2002 TG 128K card support added
- */
-
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
-#include <linux/mtd/partitions.h>
-#include <asm/io.h>
-#include <mach/hardware.h>
-#include <asm/sizes.h>
-#include <mach/autcpu12.h>
-
-/*
- * MTD structure for AUTCPU12 board
- */
-static struct mtd_info *autcpu12_mtd = NULL;
-static void __iomem *autcpu12_fio_base;
-
-/*
- * Define partitions for flash devices
- */
-static struct mtd_partition partition_info16k[] = {
- { .name = "AUTCPU12 flash partition 1",
- .offset = 0,
- .size = 8 * SZ_1M },
- { .name = "AUTCPU12 flash partition 2",
- .offset = 8 * SZ_1M,
- .size = 8 * SZ_1M },
-};
-
-static struct mtd_partition partition_info32k[] = {
- { .name = "AUTCPU12 flash partition 1",
- .offset = 0,
- .size = 8 * SZ_1M },
- { .name = "AUTCPU12 flash partition 2",
- .offset = 8 * SZ_1M,
- .size = 24 * SZ_1M },
-};
-
-static struct mtd_partition partition_info64k[] = {
- { .name = "AUTCPU12 flash partition 1",
- .offset = 0,
- .size = 16 * SZ_1M },
- { .name = "AUTCPU12 flash partition 2",
- .offset = 16 * SZ_1M,
- .size = 48 * SZ_1M },
-};
-
-static struct mtd_partition partition_info128k[] = {
- { .name = "AUTCPU12 flash partition 1",
- .offset = 0,
- .size = 16 * SZ_1M },
- { .name = "AUTCPU12 flash partition 2",
- .offset = 16 * SZ_1M,
- .size = 112 * SZ_1M },
-};
-
-#define NUM_PARTITIONS16K 2
-#define NUM_PARTITIONS32K 2
-#define NUM_PARTITIONS64K 2
-#define NUM_PARTITIONS128K 2
-/*
- * hardware specific access to control-lines
- *
- * ALE bit 4 autcpu12_pedr
- * CLE bit 5 autcpu12_pedr
- * NCE bit 0 fio_ctrl
- *
- */
-static void autcpu12_hwcontrol(struct mtd_info *mtd, int cmd,
- unsigned int ctrl)
-{
- struct nand_chip *chip = mtd->priv;
-
- if (ctrl & NAND_CTRL_CHANGE) {
- void __iomem *addr;
- unsigned char bits;
-
- bits = clps_readb(AUTCPU12_SMC_PORT_OFFSET) & ~0x30;
- bits |= (ctrl & NAND_CLE) << 4;
- bits |= (ctrl & NAND_ALE) << 2;
- clps_writeb(bits, AUTCPU12_SMC_PORT_OFFSET);
-
- addr = autcpu12_fio_base + AUTCPU12_SMC_SELECT_OFFSET;
- writeb((readb(addr) & ~0x1) | (ctrl & NAND_NCE), addr);
- }
-
- if (cmd != NAND_CMD_NONE)
- writeb(cmd, chip->IO_ADDR_W);
-}
-
-/*
- * read device ready pin
- */
-int autcpu12_device_ready(struct mtd_info *mtd)
-{
- return clps_readb(AUTCPU12_SMC_PORT_OFFSET) & AUTCPU12_SMC_RDY;
-}
-
-/*
- * Main initialization routine
- */
-static int __init autcpu12_init(void)
-{
- struct nand_chip *this;
- int err = 0;
-
- /* Allocate memory for MTD device structure and private data */
- autcpu12_mtd = kmalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip),
- GFP_KERNEL);
- if (!autcpu12_mtd) {
- printk("Unable to allocate AUTCPU12 NAND MTD device structure.\n");
- err = -ENOMEM;
- goto out;
- }
-
- /* map physical address */
- autcpu12_fio_base = ioremap(AUTCPU12_PHYS_SMC, SZ_1K);
- if (!autcpu12_fio_base) {
- printk("Ioremap autcpu12 SmartMedia Card failed\n");
- err = -EIO;
- goto out_mtd;
- }
-
- /* Get pointer to private data */
- this = (struct nand_chip *)(&autcpu12_mtd[1]);
-
- /* Initialize structures */
- memset(autcpu12_mtd, 0, sizeof(struct mtd_info));
- memset(this, 0, sizeof(struct nand_chip));
-
- /* Link the private data with the MTD structure */
- autcpu12_mtd->priv = this;
- autcpu12_mtd->owner = THIS_MODULE;
-
- /* Set address of NAND IO lines */
- this->IO_ADDR_R = autcpu12_fio_base;
- this->IO_ADDR_W = autcpu12_fio_base;
- this->cmd_ctrl = autcpu12_hwcontrol;
- this->dev_ready = autcpu12_device_ready;
- /* 20 us command delay time */
- this->chip_delay = 20;
- this->ecc.mode = NAND_ECC_SOFT;
-
- /* Enable the following for a flash based bad block table */
- /*
- this->bbt_options = NAND_BBT_USE_FLASH;
- */
- this->bbt_options = NAND_BBT_USE_FLASH;
-
- /* Scan to find existence of the device */
- if (nand_scan(autcpu12_mtd, 1)) {
- err = -ENXIO;
- goto out_ior;
- }
-
- /* Register the partitions */
- switch (autcpu12_mtd->size) {
- case SZ_16M:
- mtd_device_register(autcpu12_mtd, partition_info16k,
- NUM_PARTITIONS16K);
- break;
- case SZ_32M:
- mtd_device_register(autcpu12_mtd, partition_info32k,
- NUM_PARTITIONS32K);
- break;
- case SZ_64M:
- mtd_device_register(autcpu12_mtd, partition_info64k,
- NUM_PARTITIONS64K);
- break;
- case SZ_128M:
- mtd_device_register(autcpu12_mtd, partition_info128k,
- NUM_PARTITIONS128K);
- break;
- default:
- printk("Unsupported SmartMedia device\n");
- err = -ENXIO;
- goto out_ior;
- }
- goto out;
-
- out_ior:
- iounmap(autcpu12_fio_base);
- out_mtd:
- kfree(autcpu12_mtd);
- out:
- return err;
-}
-
-module_init(autcpu12_init);
-
-/*
- * Clean up routine
- */
-static void __exit autcpu12_cleanup(void)
-{
- /* Release resources, unregister device */
- nand_release(autcpu12_mtd);
-
- /* unmap physical address */
- iounmap(autcpu12_fio_base);
-
- /* Free the MTD device structure */
- kfree(autcpu12_mtd);
-}
-
-module_exit(autcpu12_cleanup);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Thomas Gleixner <tglx@linutronix.de>");
-MODULE_DESCRIPTION("Glue layer for SmartMediaCard on autronix autcpu12");
diff --git a/drivers/mtd/nand/spia.c b/drivers/mtd/nand/spia.c
deleted file mode 100644
index bef76cd7c24..00000000000
--- a/drivers/mtd/nand/spia.c
+++ /dev/null
@@ -1,176 +0,0 @@
-/*
- * drivers/mtd/nand/spia.c
- *
- * Copyright (C) 2000 Steven J. Hill (sjhill@realitydiluted.com)
- *
- *
- * 10-29-2001 TG change to support hardwarespecific access
- * to controllines (due to change in nand.c)
- * page_cache added
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Overview:
- * This is a device driver for the NAND flash device found on the
- * SPIA board which utilizes the Toshiba TC58V64AFT part. This is
- * a 64Mibit (8MiB x 8 bits) NAND flash device.
- */
-
-#include <linux/kernel.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/nand.h>
-#include <linux/mtd/partitions.h>
-#include <asm/io.h>
-
-/*
- * MTD structure for SPIA board
- */
-static struct mtd_info *spia_mtd = NULL;
-
-/*
- * Values specific to the SPIA board (used with EP7212 processor)
- */
-#define SPIA_IO_BASE 0xd0000000 /* Start of EP7212 IO address space */
-#define SPIA_FIO_BASE 0xf0000000 /* Address where flash is mapped */
-#define SPIA_PEDR 0x0080 /*
- * IO offset to Port E data register
- * where the CLE, ALE and NCE pins
- * are wired to.
- */
-#define SPIA_PEDDR 0x00c0 /*
- * IO offset to Port E data direction
- * register so we can control the IO
- * lines.
- */
-
-/*
- * Module stuff
- */
-
-static int spia_io_base = SPIA_IO_BASE;
-static int spia_fio_base = SPIA_FIO_BASE;
-static int spia_pedr = SPIA_PEDR;
-static int spia_peddr = SPIA_PEDDR;
-
-module_param(spia_io_base, int, 0);
-module_param(spia_fio_base, int, 0);
-module_param(spia_pedr, int, 0);
-module_param(spia_peddr, int, 0);
-
-/*
- * Define partitions for flash device
- */
-static const struct mtd_partition partition_info[] = {
- {
- .name = "SPIA flash partition 1",
- .offset = 0,
- .size = 2 * 1024 * 1024},
- {
- .name = "SPIA flash partition 2",
- .offset = 2 * 1024 * 1024,
- .size = 6 * 1024 * 1024}
-};
-
-#define NUM_PARTITIONS 2
-
-/*
- * hardware specific access to control-lines
- *
- * ctrl:
- * NAND_CNE: bit 0 -> bit 2
- * NAND_CLE: bit 1 -> bit 0
- * NAND_ALE: bit 2 -> bit 1
- */
-static void spia_hwcontrol(struct mtd_info *mtd, int cmd)
-{
- struct nand_chip *chip = mtd->priv;
-
- if (ctrl & NAND_CTRL_CHANGE) {
- void __iomem *addr = spia_io_base + spia_pedr;
- unsigned char bits;
-
- bits = (ctrl & NAND_CNE) << 2;
- bits |= (ctrl & NAND_CLE | NAND_ALE) >> 1;
- writeb((readb(addr) & ~0x7) | bits, addr);
- }
-
- if (cmd != NAND_CMD_NONE)
- writeb(cmd, chip->IO_ADDR_W);
-}
-
-/*
- * Main initialization routine
- */
-static int __init spia_init(void)
-{
- struct nand_chip *this;
-
- /* Allocate memory for MTD device structure and private data */
- spia_mtd = kmalloc(sizeof(struct mtd_info) + sizeof(struct nand_chip), GFP_KERNEL);
- if (!spia_mtd) {
- printk("Unable to allocate SPIA NAND MTD device structure.\n");
- return -ENOMEM;
- }
-
- /* Get pointer to private data */
- this = (struct nand_chip *)(&spia_mtd[1]);
-
- /* Initialize structures */
- memset(spia_mtd, 0, sizeof(struct mtd_info));
- memset(this, 0, sizeof(struct nand_chip));
-
- /* Link the private data with the MTD structure */
- spia_mtd->priv = this;
- spia_mtd->owner = THIS_MODULE;
-
- /*
- * Set GPIO Port E control register so that the pins are configured
- * to be outputs for controlling the NAND flash.
- */
- (*(volatile unsigned char *)(spia_io_base + spia_peddr)) = 0x07;
-
- /* Set address of NAND IO lines */
- this->IO_ADDR_R = (void __iomem *)spia_fio_base;
- this->IO_ADDR_W = (void __iomem *)spia_fio_base;
- /* Set address of hardware control function */
- this->cmd_ctrl = spia_hwcontrol;
- /* 15 us command delay time */
- this->chip_delay = 15;
-
- /* Scan to find existence of the device */
- if (nand_scan(spia_mtd, 1)) {
- kfree(spia_mtd);
- return -ENXIO;
- }
-
- /* Register the partitions */
- mtd_device_register(spia_mtd, partition_info, NUM_PARTITIONS);
-
- /* Return happy */
- return 0;
-}
-
-module_init(spia_init);
-
-/*
- * Clean up routine
- */
-static void __exit spia_cleanup(void)
-{
- /* Release resources, unregister device */
- nand_release(spia_mtd);
-
- /* Free the MTD device structure */
- kfree(spia_mtd);
-}
-
-module_exit(spia_cleanup);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Steven J. Hill <sjhill@realitydiluted.com");
-MODULE_DESCRIPTION("Board-specific glue layer for NAND flash on SPIA board");
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index 390ab69ea56..c31aeb01bb0 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -190,6 +190,11 @@ config PINCTRL_EXYNOS4
depends on OF && GPIOLIB
select PINCTRL_SAMSUNG
+config PINCTRL_EXYNOS5440
+ bool "Samsung EXYNOS5440 SoC pinctrl driver"
+ select PINMUX
+ select PINCONF
+
source "drivers/pinctrl/mvebu/Kconfig"
source "drivers/pinctrl/spear/Kconfig"
diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile
index f95f5ed923b..fc4606f27dc 100644
--- a/drivers/pinctrl/Makefile
+++ b/drivers/pinctrl/Makefile
@@ -37,6 +37,7 @@ obj-$(CONFIG_PINCTRL_U300) += pinctrl-u300.o
obj-$(CONFIG_PINCTRL_COH901) += pinctrl-coh901.o
obj-$(CONFIG_PINCTRL_SAMSUNG) += pinctrl-samsung.o
obj-$(CONFIG_PINCTRL_EXYNOS4) += pinctrl-exynos.o
+obj-$(CONFIG_PINCTRL_EXYNOS5440) += pinctrl-exynos5440.o
obj-$(CONFIG_PINCTRL_XWAY) += pinctrl-xway.o
obj-$(CONFIG_PINCTRL_LANTIQ) += pinctrl-lantiq.o
diff --git a/drivers/pinctrl/pinctrl-exynos.c b/drivers/pinctrl/pinctrl-exynos.c
index 6ff665209a4..538b9ddaadf 100644
--- a/drivers/pinctrl/pinctrl-exynos.c
+++ b/drivers/pinctrl/pinctrl-exynos.c
@@ -41,46 +41,46 @@ static const struct of_device_id exynos_wkup_irq_ids[] = {
static void exynos_gpio_irq_unmask(struct irq_data *irqd)
{
- struct samsung_pinctrl_drv_data *d = irqd->domain->host_data;
- struct exynos_geint_data *edata = irq_data_get_irq_handler_data(irqd);
- unsigned long reg_mask = d->ctrl->geint_mask + edata->eint_offset;
+ struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(irqd);
+ struct samsung_pinctrl_drv_data *d = bank->drvdata;
+ unsigned long reg_mask = d->ctrl->geint_mask + bank->eint_offset;
unsigned long mask;
mask = readl(d->virt_base + reg_mask);
- mask &= ~(1 << edata->pin);
+ mask &= ~(1 << irqd->hwirq);
writel(mask, d->virt_base + reg_mask);
}
static void exynos_gpio_irq_mask(struct irq_data *irqd)
{
- struct samsung_pinctrl_drv_data *d = irqd->domain->host_data;
- struct exynos_geint_data *edata = irq_data_get_irq_handler_data(irqd);
- unsigned long reg_mask = d->ctrl->geint_mask + edata->eint_offset;
+ struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(irqd);
+ struct samsung_pinctrl_drv_data *d = bank->drvdata;
+ unsigned long reg_mask = d->ctrl->geint_mask + bank->eint_offset;
unsigned long mask;
mask = readl(d->virt_base + reg_mask);
- mask |= 1 << edata->pin;
+ mask |= 1 << irqd->hwirq;
writel(mask, d->virt_base + reg_mask);
}
static void exynos_gpio_irq_ack(struct irq_data *irqd)
{
- struct samsung_pinctrl_drv_data *d = irqd->domain->host_data;
- struct exynos_geint_data *edata = irq_data_get_irq_handler_data(irqd);
- unsigned long reg_pend = d->ctrl->geint_pend + edata->eint_offset;
+ struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(irqd);
+ struct samsung_pinctrl_drv_data *d = bank->drvdata;
+ unsigned long reg_pend = d->ctrl->geint_pend + bank->eint_offset;
- writel(1 << edata->pin, d->virt_base + reg_pend);
+ writel(1 << irqd->hwirq, d->virt_base + reg_pend);
}
static int exynos_gpio_irq_set_type(struct irq_data *irqd, unsigned int type)
{
- struct samsung_pinctrl_drv_data *d = irqd->domain->host_data;
+ struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(irqd);
+ struct samsung_pinctrl_drv_data *d = bank->drvdata;
struct samsung_pin_ctrl *ctrl = d->ctrl;
- struct exynos_geint_data *edata = irq_data_get_irq_handler_data(irqd);
- struct samsung_pin_bank *bank = edata->bank;
- unsigned int shift = EXYNOS_EINT_CON_LEN * edata->pin;
+ unsigned int pin = irqd->hwirq;
+ unsigned int shift = EXYNOS_EINT_CON_LEN * pin;
unsigned int con, trig_type;
- unsigned long reg_con = ctrl->geint_con + edata->eint_offset;
+ unsigned long reg_con = ctrl->geint_con + bank->eint_offset;
unsigned int mask;
switch (type) {
@@ -115,7 +115,7 @@ static int exynos_gpio_irq_set_type(struct irq_data *irqd, unsigned int type)
writel(con, d->virt_base + reg_con);
reg_con = bank->pctl_offset;
- shift = edata->pin * bank->func_width;
+ shift = pin * bank->func_width;
mask = (1 << bank->func_width) - 1;
con = readl(d->virt_base + reg_con);
@@ -137,82 +137,23 @@ static struct irq_chip exynos_gpio_irq_chip = {
.irq_set_type = exynos_gpio_irq_set_type,
};
-/*
- * given a controller-local external gpio interrupt number, prepare the handler
- * data for it.
- */
-static struct exynos_geint_data *exynos_get_eint_data(irq_hw_number_t hw,
- struct samsung_pinctrl_drv_data *d)
-{
- struct samsung_pin_bank *bank = d->ctrl->pin_banks;
- struct exynos_geint_data *eint_data;
- unsigned int nr_banks = d->ctrl->nr_banks, idx;
- unsigned int irq_base = 0, eint_offset = 0;
-
- if (hw >= d->ctrl->nr_gint) {
- dev_err(d->dev, "unsupported ext-gpio interrupt\n");
- return NULL;
- }
-
- for (idx = 0; idx < nr_banks; idx++, bank++) {
- if (bank->eint_type != EINT_TYPE_GPIO)
- continue;
- if ((hw >= irq_base) && (hw < (irq_base + bank->nr_pins)))
- break;
- irq_base += bank->nr_pins;
- eint_offset += 4;
- }
-
- if (idx == nr_banks) {
- dev_err(d->dev, "pin bank not found for ext-gpio interrupt\n");
- return NULL;
- }
-
- eint_data = devm_kzalloc(d->dev, sizeof(*eint_data), GFP_KERNEL);
- if (!eint_data) {
- dev_err(d->dev, "no memory for eint-gpio data\n");
- return NULL;
- }
-
- eint_data->bank = bank;
- eint_data->pin = hw - irq_base;
- eint_data->eint_offset = eint_offset;
- return eint_data;
-}
-
static int exynos_gpio_irq_map(struct irq_domain *h, unsigned int virq,
irq_hw_number_t hw)
{
- struct samsung_pinctrl_drv_data *d = h->host_data;
- struct exynos_geint_data *eint_data;
-
- eint_data = exynos_get_eint_data(hw, d);
- if (!eint_data)
- return -EINVAL;
+ struct samsung_pin_bank *b = h->host_data;
- irq_set_handler_data(virq, eint_data);
- irq_set_chip_data(virq, h->host_data);
+ irq_set_chip_data(virq, b);
irq_set_chip_and_handler(virq, &exynos_gpio_irq_chip,
handle_level_irq);
set_irq_flags(virq, IRQF_VALID);
return 0;
}
-static void exynos_gpio_irq_unmap(struct irq_domain *h, unsigned int virq)
-{
- struct samsung_pinctrl_drv_data *d = h->host_data;
- struct exynos_geint_data *eint_data;
-
- eint_data = irq_get_handler_data(virq);
- devm_kfree(d->dev, eint_data);
-}
-
/*
* irq domain callbacks for external gpio interrupt controller.
*/
static const struct irq_domain_ops exynos_gpio_irqd_ops = {
.map = exynos_gpio_irq_map,
- .unmap = exynos_gpio_irq_unmap,
.xlate = irq_domain_xlate_twocell,
};
@@ -231,7 +172,7 @@ static irqreturn_t exynos_eint_gpio_irq(int irq, void *data)
return IRQ_HANDLED;
bank += (group - 1);
- virq = irq_linear_revmap(d->gpio_irqd, bank->irq_base + pin);
+ virq = irq_linear_revmap(bank->irq_domain, pin);
if (!virq)
return IRQ_NONE;
generic_handle_irq(virq);
@@ -244,8 +185,10 @@ static irqreturn_t exynos_eint_gpio_irq(int irq, void *data)
*/
static int exynos_eint_gpio_init(struct samsung_pinctrl_drv_data *d)
{
+ struct samsung_pin_bank *bank;
struct device *dev = d->dev;
unsigned int ret;
+ unsigned int i;
if (!d->irq) {
dev_err(dev, "irq number not available\n");
@@ -259,11 +202,16 @@ static int exynos_eint_gpio_init(struct samsung_pinctrl_drv_data *d)
return -ENXIO;
}
- d->gpio_irqd = irq_domain_add_linear(dev->of_node, d->ctrl->nr_gint,
- &exynos_gpio_irqd_ops, d);
- if (!d->gpio_irqd) {
- dev_err(dev, "gpio irq domain allocation failed\n");
- return -ENXIO;
+ bank = d->ctrl->pin_banks;
+ for (i = 0; i < d->ctrl->nr_banks; ++i, ++bank) {
+ if (bank->eint_type != EINT_TYPE_GPIO)
+ continue;
+ bank->irq_domain = irq_domain_add_linear(bank->of_node,
+ bank->nr_pins, &exynos_gpio_irqd_ops, bank);
+ if (!bank->irq_domain) {
+ dev_err(dev, "gpio irq domain add failed\n");
+ return -ENXIO;
+ }
}
return 0;
@@ -271,48 +219,46 @@ static int exynos_eint_gpio_init(struct samsung_pinctrl_drv_data *d)
static void exynos_wkup_irq_unmask(struct irq_data *irqd)
{
- struct samsung_pinctrl_drv_data *d = irq_data_get_irq_chip_data(irqd);
- unsigned int bank = irqd->hwirq / EXYNOS_EINT_MAX_PER_BANK;
- unsigned int pin = irqd->hwirq & (EXYNOS_EINT_MAX_PER_BANK - 1);
- unsigned long reg_mask = d->ctrl->weint_mask + (bank << 2);
+ struct samsung_pin_bank *b = irq_data_get_irq_chip_data(irqd);
+ struct samsung_pinctrl_drv_data *d = b->drvdata;
+ unsigned long reg_mask = d->ctrl->weint_mask + b->eint_offset;
unsigned long mask;
mask = readl(d->virt_base + reg_mask);
- mask &= ~(1 << pin);
+ mask &= ~(1 << irqd->hwirq);
writel(mask, d->virt_base + reg_mask);
}
static void exynos_wkup_irq_mask(struct irq_data *irqd)
{
- struct samsung_pinctrl_drv_data *d = irq_data_get_irq_chip_data(irqd);
- unsigned int bank = irqd->hwirq / EXYNOS_EINT_MAX_PER_BANK;
- unsigned int pin = irqd->hwirq & (EXYNOS_EINT_MAX_PER_BANK - 1);
- unsigned long reg_mask = d->ctrl->weint_mask + (bank << 2);
+ struct samsung_pin_bank *b = irq_data_get_irq_chip_data(irqd);
+ struct samsung_pinctrl_drv_data *d = b->drvdata;
+ unsigned long reg_mask = d->ctrl->weint_mask + b->eint_offset;
unsigned long mask;
mask = readl(d->virt_base + reg_mask);
- mask |= 1 << pin;
+ mask |= 1 << irqd->hwirq;
writel(mask, d->virt_base + reg_mask);
}
static void exynos_wkup_irq_ack(struct irq_data *irqd)
{
- struct samsung_pinctrl_drv_data *d = irq_data_get_irq_chip_data(irqd);
- unsigned int bank = irqd->hwirq / EXYNOS_EINT_MAX_PER_BANK;
- unsigned int pin = irqd->hwirq & (EXYNOS_EINT_MAX_PER_BANK - 1);
- unsigned long pend = d->ctrl->weint_pend + (bank << 2);
+ struct samsung_pin_bank *b = irq_data_get_irq_chip_data(irqd);
+ struct samsung_pinctrl_drv_data *d = b->drvdata;
+ unsigned long pend = d->ctrl->weint_pend + b->eint_offset;
- writel(1 << pin, d->virt_base + pend);
+ writel(1 << irqd->hwirq, d->virt_base + pend);
}
static int exynos_wkup_irq_set_type(struct irq_data *irqd, unsigned int type)
{
- struct samsung_pinctrl_drv_data *d = irq_data_get_irq_chip_data(irqd);
- unsigned int bank = irqd->hwirq / EXYNOS_EINT_MAX_PER_BANK;
- unsigned int pin = irqd->hwirq & (EXYNOS_EINT_MAX_PER_BANK - 1);
- unsigned long reg_con = d->ctrl->weint_con + (bank << 2);
+ struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(irqd);
+ struct samsung_pinctrl_drv_data *d = bank->drvdata;
+ unsigned int pin = irqd->hwirq;
+ unsigned long reg_con = d->ctrl->weint_con + bank->eint_offset;
unsigned long shift = EXYNOS_EINT_CON_LEN * pin;
unsigned long con, trig_type;
+ unsigned int mask;
switch (type) {
case IRQ_TYPE_EDGE_RISING:
@@ -344,6 +290,16 @@ static int exynos_wkup_irq_set_type(struct irq_data *irqd, unsigned int type)
con &= ~(EXYNOS_EINT_CON_MASK << shift);
con |= trig_type << shift;
writel(con, d->virt_base + reg_con);
+
+ reg_con = bank->pctl_offset;
+ shift = pin * bank->func_width;
+ mask = (1 << bank->func_width) - 1;
+
+ con = readl(d->virt_base + reg_con);
+ con &= ~(mask << shift);
+ con |= EXYNOS_EINT_FUNC << shift;
+ writel(con, d->virt_base + reg_con);
+
return 0;
}
@@ -362,6 +318,7 @@ static struct irq_chip exynos_wkup_irq_chip = {
static void exynos_irq_eint0_15(unsigned int irq, struct irq_desc *desc)
{
struct exynos_weint_data *eintd = irq_get_handler_data(irq);
+ struct samsung_pin_bank *bank = eintd->bank;
struct irq_chip *chip = irq_get_chip(irq);
int eint_irq;
@@ -371,20 +328,20 @@ static void exynos_irq_eint0_15(unsigned int irq, struct irq_desc *desc)
if (chip->irq_ack)
chip->irq_ack(&desc->irq_data);
- eint_irq = irq_linear_revmap(eintd->domain, eintd->irq);
+ eint_irq = irq_linear_revmap(bank->irq_domain, eintd->irq);
generic_handle_irq(eint_irq);
chip->irq_unmask(&desc->irq_data);
chained_irq_exit(chip, desc);
}
-static inline void exynos_irq_demux_eint(int irq_base, unsigned long pend,
- struct irq_domain *domain)
+static inline void exynos_irq_demux_eint(unsigned long pend,
+ struct irq_domain *domain)
{
unsigned int irq;
while (pend) {
irq = fls(pend) - 1;
- generic_handle_irq(irq_find_mapping(domain, irq_base + irq));
+ generic_handle_irq(irq_find_mapping(domain, irq));
pend &= ~(1 << irq);
}
}
@@ -393,18 +350,22 @@ static inline void exynos_irq_demux_eint(int irq_base, unsigned long pend,
static void exynos_irq_demux_eint16_31(unsigned int irq, struct irq_desc *desc)
{
struct irq_chip *chip = irq_get_chip(irq);
- struct exynos_weint_data *eintd = irq_get_handler_data(irq);
- struct samsung_pinctrl_drv_data *d = eintd->domain->host_data;
+ struct exynos_muxed_weint_data *eintd = irq_get_handler_data(irq);
+ struct samsung_pinctrl_drv_data *d = eintd->banks[0]->drvdata;
+ struct samsung_pin_ctrl *ctrl = d->ctrl;
unsigned long pend;
unsigned long mask;
+ int i;
chained_irq_enter(chip, desc);
- pend = readl(d->virt_base + d->ctrl->weint_pend + 0x8);
- mask = readl(d->virt_base + d->ctrl->weint_mask + 0x8);
- exynos_irq_demux_eint(16, pend & ~mask, eintd->domain);
- pend = readl(d->virt_base + d->ctrl->weint_pend + 0xC);
- mask = readl(d->virt_base + d->ctrl->weint_mask + 0xC);
- exynos_irq_demux_eint(24, pend & ~mask, eintd->domain);
+
+ for (i = 0; i < eintd->nr_banks; ++i) {
+ struct samsung_pin_bank *b = eintd->banks[i];
+ pend = readl(d->virt_base + ctrl->weint_pend + b->eint_offset);
+ mask = readl(d->virt_base + ctrl->weint_mask + b->eint_offset);
+ exynos_irq_demux_eint(pend & ~mask, b->irq_domain);
+ }
+
chained_irq_exit(chip, desc);
}
@@ -434,7 +395,11 @@ static int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d)
struct device *dev = d->dev;
struct device_node *wkup_np = NULL;
struct device_node *np;
+ struct samsung_pin_bank *bank;
struct exynos_weint_data *weint_data;
+ struct exynos_muxed_weint_data *muxed_data;
+ unsigned int muxed_banks = 0;
+ unsigned int i;
int idx, irq;
for_each_child_of_node(dev->of_node, np) {
@@ -446,90 +411,124 @@ static int exynos_eint_wkup_init(struct samsung_pinctrl_drv_data *d)
if (!wkup_np)
return -ENODEV;
- d->wkup_irqd = irq_domain_add_linear(wkup_np, d->ctrl->nr_wint,
- &exynos_wkup_irqd_ops, d);
- if (!d->wkup_irqd) {
- dev_err(dev, "wakeup irq domain allocation failed\n");
- return -ENXIO;
- }
+ bank = d->ctrl->pin_banks;
+ for (i = 0; i < d->ctrl->nr_banks; ++i, ++bank) {
+ if (bank->eint_type != EINT_TYPE_WKUP)
+ continue;
- weint_data = devm_kzalloc(dev, sizeof(*weint_data) * 17, GFP_KERNEL);
- if (!weint_data) {
- dev_err(dev, "could not allocate memory for weint_data\n");
- return -ENOMEM;
- }
+ bank->irq_domain = irq_domain_add_linear(bank->of_node,
+ bank->nr_pins, &exynos_wkup_irqd_ops, bank);
+ if (!bank->irq_domain) {
+ dev_err(dev, "wkup irq domain add failed\n");
+ return -ENXIO;
+ }
- irq = irq_of_parse_and_map(wkup_np, 16);
- if (irq) {
- weint_data[16].domain = d->wkup_irqd;
- irq_set_chained_handler(irq, exynos_irq_demux_eint16_31);
- irq_set_handler_data(irq, &weint_data[16]);
- } else {
- dev_err(dev, "irq number for EINT16-32 not found\n");
- }
+ if (!of_find_property(bank->of_node, "interrupts", NULL)) {
+ bank->eint_type = EINT_TYPE_WKUP_MUX;
+ ++muxed_banks;
+ continue;
+ }
- for (idx = 0; idx < 16; idx++) {
- weint_data[idx].domain = d->wkup_irqd;
- weint_data[idx].irq = idx;
+ weint_data = devm_kzalloc(dev, bank->nr_pins
+ * sizeof(*weint_data), GFP_KERNEL);
+ if (!weint_data) {
+ dev_err(dev, "could not allocate memory for weint_data\n");
+ return -ENOMEM;
+ }
- irq = irq_of_parse_and_map(wkup_np, idx);
- if (irq) {
+ for (idx = 0; idx < bank->nr_pins; ++idx) {
+ irq = irq_of_parse_and_map(bank->of_node, idx);
+ if (!irq) {
+ dev_err(dev, "irq number for eint-%s-%d not found\n",
+ bank->name, idx);
+ continue;
+ }
+ weint_data[idx].irq = idx;
+ weint_data[idx].bank = bank;
irq_set_handler_data(irq, &weint_data[idx]);
irq_set_chained_handler(irq, exynos_irq_eint0_15);
- } else {
- dev_err(dev, "irq number for eint-%x not found\n", idx);
}
}
+
+ if (!muxed_banks)
+ return 0;
+
+ irq = irq_of_parse_and_map(wkup_np, 0);
+ if (!irq) {
+ dev_err(dev, "irq number for muxed EINTs not found\n");
+ return 0;
+ }
+
+ muxed_data = devm_kzalloc(dev, sizeof(*muxed_data)
+ + muxed_banks*sizeof(struct samsung_pin_bank *), GFP_KERNEL);
+ if (!muxed_data) {
+ dev_err(dev, "could not allocate memory for muxed_data\n");
+ return -ENOMEM;
+ }
+
+ irq_set_chained_handler(irq, exynos_irq_demux_eint16_31);
+ irq_set_handler_data(irq, muxed_data);
+
+ bank = d->ctrl->pin_banks;
+ idx = 0;
+ for (i = 0; i < d->ctrl->nr_banks; ++i, ++bank) {
+ if (bank->eint_type != EINT_TYPE_WKUP_MUX)
+ continue;
+
+ muxed_data->banks[idx++] = bank;
+ }
+ muxed_data->nr_banks = muxed_banks;
+
return 0;
}
/* pin banks of exynos4210 pin-controller 0 */
static struct samsung_pin_bank exynos4210_pin_banks0[] = {
- EXYNOS_PIN_BANK_EINTG(0x000, EXYNOS4210_GPIO_A0, "gpa0"),
- EXYNOS_PIN_BANK_EINTG(0x020, EXYNOS4210_GPIO_A1, "gpa1"),
- EXYNOS_PIN_BANK_EINTG(0x040, EXYNOS4210_GPIO_B, "gpb"),
- EXYNOS_PIN_BANK_EINTG(0x060, EXYNOS4210_GPIO_C0, "gpc0"),
- EXYNOS_PIN_BANK_EINTG(0x080, EXYNOS4210_GPIO_C1, "gpc1"),
- EXYNOS_PIN_BANK_EINTG(0x0A0, EXYNOS4210_GPIO_D0, "gpd0"),
- EXYNOS_PIN_BANK_EINTG(0x0C0, EXYNOS4210_GPIO_D1, "gpd1"),
- EXYNOS_PIN_BANK_EINTG(0x0E0, EXYNOS4210_GPIO_E0, "gpe0"),
- EXYNOS_PIN_BANK_EINTG(0x100, EXYNOS4210_GPIO_E1, "gpe1"),
- EXYNOS_PIN_BANK_EINTG(0x120, EXYNOS4210_GPIO_E2, "gpe2"),
- EXYNOS_PIN_BANK_EINTG(0x140, EXYNOS4210_GPIO_E3, "gpe3"),
- EXYNOS_PIN_BANK_EINTG(0x160, EXYNOS4210_GPIO_E4, "gpe4"),
- EXYNOS_PIN_BANK_EINTG(0x180, EXYNOS4210_GPIO_F0, "gpf0"),
- EXYNOS_PIN_BANK_EINTG(0x1A0, EXYNOS4210_GPIO_F1, "gpf1"),
- EXYNOS_PIN_BANK_EINTG(0x1C0, EXYNOS4210_GPIO_F2, "gpf2"),
- EXYNOS_PIN_BANK_EINTG(0x1E0, EXYNOS4210_GPIO_F3, "gpf3"),
+ EXYNOS_PIN_BANK_EINTG(8, 0x000, "gpa0", 0x00),
+ EXYNOS_PIN_BANK_EINTG(6, 0x020, "gpa1", 0x04),
+ EXYNOS_PIN_BANK_EINTG(8, 0x040, "gpb", 0x08),
+ EXYNOS_PIN_BANK_EINTG(5, 0x060, "gpc0", 0x0c),
+ EXYNOS_PIN_BANK_EINTG(5, 0x080, "gpc1", 0x10),
+ EXYNOS_PIN_BANK_EINTG(4, 0x0A0, "gpd0", 0x14),
+ EXYNOS_PIN_BANK_EINTG(4, 0x0C0, "gpd1", 0x18),
+ EXYNOS_PIN_BANK_EINTG(5, 0x0E0, "gpe0", 0x1c),
+ EXYNOS_PIN_BANK_EINTG(8, 0x100, "gpe1", 0x20),
+ EXYNOS_PIN_BANK_EINTG(6, 0x120, "gpe2", 0x24),
+ EXYNOS_PIN_BANK_EINTG(8, 0x140, "gpe3", 0x28),
+ EXYNOS_PIN_BANK_EINTG(8, 0x160, "gpe4", 0x2c),
+ EXYNOS_PIN_BANK_EINTG(8, 0x180, "gpf0", 0x30),
+ EXYNOS_PIN_BANK_EINTG(8, 0x1A0, "gpf1", 0x34),
+ EXYNOS_PIN_BANK_EINTG(8, 0x1C0, "gpf2", 0x38),
+ EXYNOS_PIN_BANK_EINTG(6, 0x1E0, "gpf3", 0x3c),
};
/* pin banks of exynos4210 pin-controller 1 */
static struct samsung_pin_bank exynos4210_pin_banks1[] = {
- EXYNOS_PIN_BANK_EINTG(0x000, EXYNOS4210_GPIO_J0, "gpj0"),
- EXYNOS_PIN_BANK_EINTG(0x020, EXYNOS4210_GPIO_J1, "gpj1"),
- EXYNOS_PIN_BANK_EINTG(0x040, EXYNOS4210_GPIO_K0, "gpk0"),
- EXYNOS_PIN_BANK_EINTG(0x060, EXYNOS4210_GPIO_K1, "gpk1"),
- EXYNOS_PIN_BANK_EINTG(0x080, EXYNOS4210_GPIO_K2, "gpk2"),
- EXYNOS_PIN_BANK_EINTG(0x0A0, EXYNOS4210_GPIO_K3, "gpk3"),
- EXYNOS_PIN_BANK_EINTG(0x0C0, EXYNOS4210_GPIO_L0, "gpl0"),
- EXYNOS_PIN_BANK_EINTG(0x0E0, EXYNOS4210_GPIO_L1, "gpl1"),
- EXYNOS_PIN_BANK_EINTG(0x100, EXYNOS4210_GPIO_L2, "gpl2"),
- EXYNOS_PIN_BANK_EINTN(0x120, EXYNOS4210_GPIO_Y0, "gpy0"),
- EXYNOS_PIN_BANK_EINTN(0x140, EXYNOS4210_GPIO_Y1, "gpy1"),
- EXYNOS_PIN_BANK_EINTN(0x160, EXYNOS4210_GPIO_Y2, "gpy2"),
- EXYNOS_PIN_BANK_EINTN(0x180, EXYNOS4210_GPIO_Y3, "gpy3"),
- EXYNOS_PIN_BANK_EINTN(0x1A0, EXYNOS4210_GPIO_Y4, "gpy4"),
- EXYNOS_PIN_BANK_EINTN(0x1C0, EXYNOS4210_GPIO_Y5, "gpy5"),
- EXYNOS_PIN_BANK_EINTN(0x1E0, EXYNOS4210_GPIO_Y6, "gpy6"),
- EXYNOS_PIN_BANK_EINTN(0xC00, EXYNOS4210_GPIO_X0, "gpx0"),
- EXYNOS_PIN_BANK_EINTN(0xC20, EXYNOS4210_GPIO_X1, "gpx1"),
- EXYNOS_PIN_BANK_EINTN(0xC40, EXYNOS4210_GPIO_X2, "gpx2"),
- EXYNOS_PIN_BANK_EINTN(0xC60, EXYNOS4210_GPIO_X3, "gpx3"),
+ EXYNOS_PIN_BANK_EINTG(8, 0x000, "gpj0", 0x00),
+ EXYNOS_PIN_BANK_EINTG(5, 0x020, "gpj1", 0x04),
+ EXYNOS_PIN_BANK_EINTG(7, 0x040, "gpk0", 0x08),
+ EXYNOS_PIN_BANK_EINTG(7, 0x060, "gpk1", 0x0c),
+ EXYNOS_PIN_BANK_EINTG(7, 0x080, "gpk2", 0x10),
+ EXYNOS_PIN_BANK_EINTG(7, 0x0A0, "gpk3", 0x14),
+ EXYNOS_PIN_BANK_EINTG(8, 0x0C0, "gpl0", 0x18),
+ EXYNOS_PIN_BANK_EINTG(3, 0x0E0, "gpl1", 0x1c),
+ EXYNOS_PIN_BANK_EINTG(8, 0x100, "gpl2", 0x20),
+ EXYNOS_PIN_BANK_EINTN(6, 0x120, "gpy0"),
+ EXYNOS_PIN_BANK_EINTN(4, 0x140, "gpy1"),
+ EXYNOS_PIN_BANK_EINTN(6, 0x160, "gpy2"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x180, "gpy3"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x1A0, "gpy4"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x1C0, "gpy5"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x1E0, "gpy6"),
+ EXYNOS_PIN_BANK_EINTW(8, 0xC00, "gpx0", 0x00),
+ EXYNOS_PIN_BANK_EINTW(8, 0xC20, "gpx1", 0x04),
+ EXYNOS_PIN_BANK_EINTW(8, 0xC40, "gpx2", 0x08),
+ EXYNOS_PIN_BANK_EINTW(8, 0xC60, "gpx3", 0x0c),
};
/* pin banks of exynos4210 pin-controller 2 */
static struct samsung_pin_bank exynos4210_pin_banks2[] = {
- EXYNOS_PIN_BANK_EINTN(0x000, EXYNOS4210_GPIO_Z, "gpz"),
+ EXYNOS_PIN_BANK_EINTN(7, 0x000, "gpz"),
};
/*
@@ -541,9 +540,6 @@ struct samsung_pin_ctrl exynos4210_pin_ctrl[] = {
/* pin-controller instance 0 data */
.pin_banks = exynos4210_pin_banks0,
.nr_banks = ARRAY_SIZE(exynos4210_pin_banks0),
- .base = EXYNOS4210_GPIO_A0_START,
- .nr_pins = EXYNOS4210_GPIOA_NR_PINS,
- .nr_gint = EXYNOS4210_GPIOA_NR_GINT,
.geint_con = EXYNOS_GPIO_ECON_OFFSET,
.geint_mask = EXYNOS_GPIO_EMASK_OFFSET,
.geint_pend = EXYNOS_GPIO_EPEND_OFFSET,
@@ -554,10 +550,6 @@ struct samsung_pin_ctrl exynos4210_pin_ctrl[] = {
/* pin-controller instance 1 data */
.pin_banks = exynos4210_pin_banks1,
.nr_banks = ARRAY_SIZE(exynos4210_pin_banks1),
- .base = EXYNOS4210_GPIOA_NR_PINS,
- .nr_pins = EXYNOS4210_GPIOB_NR_PINS,
- .nr_gint = EXYNOS4210_GPIOB_NR_GINT,
- .nr_wint = 32,
.geint_con = EXYNOS_GPIO_ECON_OFFSET,
.geint_mask = EXYNOS_GPIO_EMASK_OFFSET,
.geint_pend = EXYNOS_GPIO_EPEND_OFFSET,
@@ -572,9 +564,116 @@ struct samsung_pin_ctrl exynos4210_pin_ctrl[] = {
/* pin-controller instance 2 data */
.pin_banks = exynos4210_pin_banks2,
.nr_banks = ARRAY_SIZE(exynos4210_pin_banks2),
- .base = EXYNOS4210_GPIOA_NR_PINS +
- EXYNOS4210_GPIOB_NR_PINS,
- .nr_pins = EXYNOS4210_GPIOC_NR_PINS,
.label = "exynos4210-gpio-ctrl2",
},
};
+
+/* pin banks of exynos4x12 pin-controller 0 */
+static struct samsung_pin_bank exynos4x12_pin_banks0[] = {
+ EXYNOS_PIN_BANK_EINTG(8, 0x000, "gpa0", 0x00),
+ EXYNOS_PIN_BANK_EINTG(6, 0x020, "gpa1", 0x04),
+ EXYNOS_PIN_BANK_EINTG(8, 0x040, "gpb", 0x08),
+ EXYNOS_PIN_BANK_EINTG(5, 0x060, "gpc0", 0x0c),
+ EXYNOS_PIN_BANK_EINTG(5, 0x080, "gpc1", 0x10),
+ EXYNOS_PIN_BANK_EINTG(4, 0x0A0, "gpd0", 0x14),
+ EXYNOS_PIN_BANK_EINTG(4, 0x0C0, "gpd1", 0x18),
+ EXYNOS_PIN_BANK_EINTG(8, 0x180, "gpf0", 0x30),
+ EXYNOS_PIN_BANK_EINTG(8, 0x1A0, "gpf1", 0x34),
+ EXYNOS_PIN_BANK_EINTG(8, 0x1C0, "gpf2", 0x38),
+ EXYNOS_PIN_BANK_EINTG(6, 0x1E0, "gpf3", 0x3c),
+ EXYNOS_PIN_BANK_EINTG(8, 0x240, "gpj0", 0x40),
+ EXYNOS_PIN_BANK_EINTG(5, 0x260, "gpj1", 0x44),
+};
+
+/* pin banks of exynos4x12 pin-controller 1 */
+static struct samsung_pin_bank exynos4x12_pin_banks1[] = {
+ EXYNOS_PIN_BANK_EINTG(7, 0x040, "gpk0", 0x08),
+ EXYNOS_PIN_BANK_EINTG(7, 0x060, "gpk1", 0x0c),
+ EXYNOS_PIN_BANK_EINTG(7, 0x080, "gpk2", 0x10),
+ EXYNOS_PIN_BANK_EINTG(7, 0x0A0, "gpk3", 0x14),
+ EXYNOS_PIN_BANK_EINTG(7, 0x0C0, "gpl0", 0x18),
+ EXYNOS_PIN_BANK_EINTG(2, 0x0E0, "gpl1", 0x1c),
+ EXYNOS_PIN_BANK_EINTG(8, 0x100, "gpl2", 0x20),
+ EXYNOS_PIN_BANK_EINTG(8, 0x260, "gpm0", 0x24),
+ EXYNOS_PIN_BANK_EINTG(7, 0x280, "gpm1", 0x28),
+ EXYNOS_PIN_BANK_EINTG(5, 0x2A0, "gpm2", 0x2c),
+ EXYNOS_PIN_BANK_EINTG(8, 0x2C0, "gpm3", 0x30),
+ EXYNOS_PIN_BANK_EINTG(8, 0x2E0, "gpm4", 0x34),
+ EXYNOS_PIN_BANK_EINTN(6, 0x120, "gpy0"),
+ EXYNOS_PIN_BANK_EINTN(4, 0x140, "gpy1"),
+ EXYNOS_PIN_BANK_EINTN(6, 0x160, "gpy2"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x180, "gpy3"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x1A0, "gpy4"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x1C0, "gpy5"),
+ EXYNOS_PIN_BANK_EINTN(8, 0x1E0, "gpy6"),
+ EXYNOS_PIN_BANK_EINTW(8, 0xC00, "gpx0", 0x00),
+ EXYNOS_PIN_BANK_EINTW(8, 0xC20, "gpx1", 0x04),
+ EXYNOS_PIN_BANK_EINTW(8, 0xC40, "gpx2", 0x08),
+ EXYNOS_PIN_BANK_EINTW(8, 0xC60, "gpx3", 0x0c),
+};
+
+/* pin banks of exynos4x12 pin-controller 2 */
+static struct samsung_pin_bank exynos4x12_pin_banks2[] = {
+ EXYNOS_PIN_BANK_EINTG(7, 0x000, "gpz", 0x00),
+};
+
+/* pin banks of exynos4x12 pin-controller 3 */
+static struct samsung_pin_bank exynos4x12_pin_banks3[] = {
+ EXYNOS_PIN_BANK_EINTG(8, 0x000, "gpv0", 0x00),
+ EXYNOS_PIN_BANK_EINTG(8, 0x020, "gpv1", 0x04),
+ EXYNOS_PIN_BANK_EINTG(8, 0x040, "gpv2", 0x08),
+ EXYNOS_PIN_BANK_EINTG(8, 0x060, "gpv3", 0x0c),
+ EXYNOS_PIN_BANK_EINTG(2, 0x080, "gpv4", 0x10),
+};
+
+/*
+ * Samsung pinctrl driver data for Exynos4x12 SoC. Exynos4x12 SoC includes
+ * four gpio/pin-mux/pinconfig controllers.
+ */
+struct samsung_pin_ctrl exynos4x12_pin_ctrl[] = {
+ {
+ /* pin-controller instance 0 data */
+ .pin_banks = exynos4x12_pin_banks0,
+ .nr_banks = ARRAY_SIZE(exynos4x12_pin_banks0),
+ .geint_con = EXYNOS_GPIO_ECON_OFFSET,
+ .geint_mask = EXYNOS_GPIO_EMASK_OFFSET,
+ .geint_pend = EXYNOS_GPIO_EPEND_OFFSET,
+ .svc = EXYNOS_SVC_OFFSET,
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .label = "exynos4x12-gpio-ctrl0",
+ }, {
+ /* pin-controller instance 1 data */
+ .pin_banks = exynos4x12_pin_banks1,
+ .nr_banks = ARRAY_SIZE(exynos4x12_pin_banks1),
+ .geint_con = EXYNOS_GPIO_ECON_OFFSET,
+ .geint_mask = EXYNOS_GPIO_EMASK_OFFSET,
+ .geint_pend = EXYNOS_GPIO_EPEND_OFFSET,
+ .weint_con = EXYNOS_WKUP_ECON_OFFSET,
+ .weint_mask = EXYNOS_WKUP_EMASK_OFFSET,
+ .weint_pend = EXYNOS_WKUP_EPEND_OFFSET,
+ .svc = EXYNOS_SVC_OFFSET,
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .eint_wkup_init = exynos_eint_wkup_init,
+ .label = "exynos4x12-gpio-ctrl1",
+ }, {
+ /* pin-controller instance 2 data */
+ .pin_banks = exynos4x12_pin_banks2,
+ .nr_banks = ARRAY_SIZE(exynos4x12_pin_banks2),
+ .geint_con = EXYNOS_GPIO_ECON_OFFSET,
+ .geint_mask = EXYNOS_GPIO_EMASK_OFFSET,
+ .geint_pend = EXYNOS_GPIO_EPEND_OFFSET,
+ .svc = EXYNOS_SVC_OFFSET,
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .label = "exynos4x12-gpio-ctrl2",
+ }, {
+ /* pin-controller instance 3 data */
+ .pin_banks = exynos4x12_pin_banks3,
+ .nr_banks = ARRAY_SIZE(exynos4x12_pin_banks3),
+ .geint_con = EXYNOS_GPIO_ECON_OFFSET,
+ .geint_mask = EXYNOS_GPIO_EMASK_OFFSET,
+ .geint_pend = EXYNOS_GPIO_EPEND_OFFSET,
+ .svc = EXYNOS_SVC_OFFSET,
+ .eint_gpio_init = exynos_eint_gpio_init,
+ .label = "exynos4x12-gpio-ctrl3",
+ },
+};
diff --git a/drivers/pinctrl/pinctrl-exynos.h b/drivers/pinctrl/pinctrl-exynos.h
index 31d0a06174e..0a708890d8b 100644
--- a/drivers/pinctrl/pinctrl-exynos.h
+++ b/drivers/pinctrl/pinctrl-exynos.h
@@ -17,125 +17,6 @@
* (at your option) any later version.
*/
-#define EXYNOS_GPIO_START(__gpio) ((__gpio##_START) + (__gpio##_NR))
-
-#define EXYNOS4210_GPIO_A0_NR (8)
-#define EXYNOS4210_GPIO_A1_NR (6)
-#define EXYNOS4210_GPIO_B_NR (8)
-#define EXYNOS4210_GPIO_C0_NR (5)
-#define EXYNOS4210_GPIO_C1_NR (5)
-#define EXYNOS4210_GPIO_D0_NR (4)
-#define EXYNOS4210_GPIO_D1_NR (4)
-#define EXYNOS4210_GPIO_E0_NR (5)
-#define EXYNOS4210_GPIO_E1_NR (8)
-#define EXYNOS4210_GPIO_E2_NR (6)
-#define EXYNOS4210_GPIO_E3_NR (8)
-#define EXYNOS4210_GPIO_E4_NR (8)
-#define EXYNOS4210_GPIO_F0_NR (8)
-#define EXYNOS4210_GPIO_F1_NR (8)
-#define EXYNOS4210_GPIO_F2_NR (8)
-#define EXYNOS4210_GPIO_F3_NR (6)
-#define EXYNOS4210_GPIO_J0_NR (8)
-#define EXYNOS4210_GPIO_J1_NR (5)
-#define EXYNOS4210_GPIO_K0_NR (7)
-#define EXYNOS4210_GPIO_K1_NR (7)
-#define EXYNOS4210_GPIO_K2_NR (7)
-#define EXYNOS4210_GPIO_K3_NR (7)
-#define EXYNOS4210_GPIO_L0_NR (8)
-#define EXYNOS4210_GPIO_L1_NR (3)
-#define EXYNOS4210_GPIO_L2_NR (8)
-#define EXYNOS4210_GPIO_Y0_NR (6)
-#define EXYNOS4210_GPIO_Y1_NR (4)
-#define EXYNOS4210_GPIO_Y2_NR (6)
-#define EXYNOS4210_GPIO_Y3_NR (8)
-#define EXYNOS4210_GPIO_Y4_NR (8)
-#define EXYNOS4210_GPIO_Y5_NR (8)
-#define EXYNOS4210_GPIO_Y6_NR (8)
-#define EXYNOS4210_GPIO_X0_NR (8)
-#define EXYNOS4210_GPIO_X1_NR (8)
-#define EXYNOS4210_GPIO_X2_NR (8)
-#define EXYNOS4210_GPIO_X3_NR (8)
-#define EXYNOS4210_GPIO_Z_NR (7)
-
-enum exynos4210_gpio_xa_start {
- EXYNOS4210_GPIO_A0_START = 0,
- EXYNOS4210_GPIO_A1_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_A0),
- EXYNOS4210_GPIO_B_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_A1),
- EXYNOS4210_GPIO_C0_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_B),
- EXYNOS4210_GPIO_C1_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_C0),
- EXYNOS4210_GPIO_D0_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_C1),
- EXYNOS4210_GPIO_D1_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_D0),
- EXYNOS4210_GPIO_E0_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_D1),
- EXYNOS4210_GPIO_E1_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_E0),
- EXYNOS4210_GPIO_E2_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_E1),
- EXYNOS4210_GPIO_E3_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_E2),
- EXYNOS4210_GPIO_E4_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_E3),
- EXYNOS4210_GPIO_F0_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_E4),
- EXYNOS4210_GPIO_F1_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_F0),
- EXYNOS4210_GPIO_F2_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_F1),
- EXYNOS4210_GPIO_F3_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_F2),
-};
-
-enum exynos4210_gpio_xb_start {
- EXYNOS4210_GPIO_J0_START = 0,
- EXYNOS4210_GPIO_J1_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_J0),
- EXYNOS4210_GPIO_K0_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_J1),
- EXYNOS4210_GPIO_K1_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_K0),
- EXYNOS4210_GPIO_K2_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_K1),
- EXYNOS4210_GPIO_K3_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_K2),
- EXYNOS4210_GPIO_L0_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_K3),
- EXYNOS4210_GPIO_L1_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_L0),
- EXYNOS4210_GPIO_L2_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_L1),
- EXYNOS4210_GPIO_Y0_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_L2),
- EXYNOS4210_GPIO_Y1_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_Y0),
- EXYNOS4210_GPIO_Y2_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_Y1),
- EXYNOS4210_GPIO_Y3_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_Y2),
- EXYNOS4210_GPIO_Y4_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_Y3),
- EXYNOS4210_GPIO_Y5_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_Y4),
- EXYNOS4210_GPIO_Y6_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_Y5),
- EXYNOS4210_GPIO_X0_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_Y6),
- EXYNOS4210_GPIO_X1_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_X0),
- EXYNOS4210_GPIO_X2_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_X1),
- EXYNOS4210_GPIO_X3_START = EXYNOS_GPIO_START(EXYNOS4210_GPIO_X2),
-};
-
-enum exynos4210_gpio_xc_start {
- EXYNOS4210_GPIO_Z_START = 0,
-};
-
-#define EXYNOS4210_GPIO_A0_IRQ EXYNOS4210_GPIO_A0_START
-#define EXYNOS4210_GPIO_A1_IRQ EXYNOS4210_GPIO_A1_START
-#define EXYNOS4210_GPIO_B_IRQ EXYNOS4210_GPIO_B_START
-#define EXYNOS4210_GPIO_C0_IRQ EXYNOS4210_GPIO_C0_START
-#define EXYNOS4210_GPIO_C1_IRQ EXYNOS4210_GPIO_C1_START
-#define EXYNOS4210_GPIO_D0_IRQ EXYNOS4210_GPIO_D0_START
-#define EXYNOS4210_GPIO_D1_IRQ EXYNOS4210_GPIO_D1_START
-#define EXYNOS4210_GPIO_E0_IRQ EXYNOS4210_GPIO_E0_START
-#define EXYNOS4210_GPIO_E1_IRQ EXYNOS4210_GPIO_E1_START
-#define EXYNOS4210_GPIO_E2_IRQ EXYNOS4210_GPIO_E2_START
-#define EXYNOS4210_GPIO_E3_IRQ EXYNOS4210_GPIO_E3_START
-#define EXYNOS4210_GPIO_E4_IRQ EXYNOS4210_GPIO_E4_START
-#define EXYNOS4210_GPIO_F0_IRQ EXYNOS4210_GPIO_F0_START
-#define EXYNOS4210_GPIO_F1_IRQ EXYNOS4210_GPIO_F1_START
-#define EXYNOS4210_GPIO_F2_IRQ EXYNOS4210_GPIO_F2_START
-#define EXYNOS4210_GPIO_F3_IRQ EXYNOS4210_GPIO_F3_START
-#define EXYNOS4210_GPIO_J0_IRQ EXYNOS4210_GPIO_J0_START
-#define EXYNOS4210_GPIO_J1_IRQ EXYNOS4210_GPIO_J1_START
-#define EXYNOS4210_GPIO_K0_IRQ EXYNOS4210_GPIO_K0_START
-#define EXYNOS4210_GPIO_K1_IRQ EXYNOS4210_GPIO_K1_START
-#define EXYNOS4210_GPIO_K2_IRQ EXYNOS4210_GPIO_K2_START
-#define EXYNOS4210_GPIO_K3_IRQ EXYNOS4210_GPIO_K3_START
-#define EXYNOS4210_GPIO_L0_IRQ EXYNOS4210_GPIO_L0_START
-#define EXYNOS4210_GPIO_L1_IRQ EXYNOS4210_GPIO_L1_START
-#define EXYNOS4210_GPIO_L2_IRQ EXYNOS4210_GPIO_L2_START
-#define EXYNOS4210_GPIO_Z_IRQ EXYNOS4210_GPIO_Z_START
-
-#define EXYNOS4210_GPIOA_NR_PINS EXYNOS_GPIO_START(EXYNOS4210_GPIO_F3)
-#define EXYNOS4210_GPIOA_NR_GINT EXYNOS_GPIO_START(EXYNOS4210_GPIO_F3)
-#define EXYNOS4210_GPIOB_NR_PINS EXYNOS_GPIO_START(EXYNOS4210_GPIO_X3)
-#define EXYNOS4210_GPIOB_NR_GINT EXYNOS_GPIO_START(EXYNOS4210_GPIO_L2)
-#define EXYNOS4210_GPIOC_NR_PINS EXYNOS_GPIO_START(EXYNOS4210_GPIO_Z)
-
/* External GPIO and wakeup interrupt related definitions */
#define EXYNOS_GPIO_ECON_OFFSET 0x700
#define EXYNOS_GPIO_EMASK_OFFSET 0x900
@@ -165,11 +46,10 @@ enum exynos4210_gpio_xc_start {
#define EXYNOS_EINT_MAX_PER_BANK 8
#define EXYNOS_EINT_NR_WKUP_EINT
-#define EXYNOS_PIN_BANK_EINTN(reg, __gpio, id) \
+#define EXYNOS_PIN_BANK_EINTN(pins, reg, id) \
{ \
.pctl_offset = reg, \
- .pin_base = (__gpio##_START), \
- .nr_pins = (__gpio##_NR), \
+ .nr_pins = pins, \
.func_width = 4, \
.pud_width = 2, \
.drv_width = 2, \
@@ -179,40 +59,50 @@ enum exynos4210_gpio_xc_start {
.name = id \
}
-#define EXYNOS_PIN_BANK_EINTG(reg, __gpio, id) \
+#define EXYNOS_PIN_BANK_EINTG(pins, reg, id, offs) \
{ \
.pctl_offset = reg, \
- .pin_base = (__gpio##_START), \
- .nr_pins = (__gpio##_NR), \
+ .nr_pins = pins, \
.func_width = 4, \
.pud_width = 2, \
.drv_width = 2, \
.conpdn_width = 2, \
.pudpdn_width = 2, \
.eint_type = EINT_TYPE_GPIO, \
- .irq_base = (__gpio##_IRQ), \
+ .eint_offset = offs, \
.name = id \
}
-/**
- * struct exynos_geint_data: gpio eint specific data for irq_chip callbacks.
- * @bank: pin bank from which this gpio interrupt originates.
- * @pin: pin number within the bank.
- * @eint_offset: offset to be added to the con/pend/mask register bank base.
- */
-struct exynos_geint_data {
- struct samsung_pin_bank *bank;
- u32 pin;
- u32 eint_offset;
-};
+#define EXYNOS_PIN_BANK_EINTW(pins, reg, id, offs) \
+ { \
+ .pctl_offset = reg, \
+ .nr_pins = pins, \
+ .func_width = 4, \
+ .pud_width = 2, \
+ .drv_width = 2, \
+ .eint_type = EINT_TYPE_WKUP, \
+ .eint_offset = offs, \
+ .name = id \
+ }
/**
* struct exynos_weint_data: irq specific data for all the wakeup interrupts
* generated by the external wakeup interrupt controller.
- * @domain: irq domain representing the external wakeup interrupts
* @irq: interrupt number within the domain.
+ * @bank: bank responsible for this interrupt
*/
struct exynos_weint_data {
- struct irq_domain *domain;
- u32 irq;
+ unsigned int irq;
+ struct samsung_pin_bank *bank;
+};
+
+/**
+ * struct exynos_muxed_weint_data: irq specific data for muxed wakeup interrupts
+ * generated by the external wakeup interrupt controller.
+ * @nr_banks: count of banks being part of the mux
+ * @banks: array of banks being part of the mux
+ */
+struct exynos_muxed_weint_data {
+ unsigned int nr_banks;
+ struct samsung_pin_bank *banks[];
};
diff --git a/drivers/pinctrl/pinctrl-exynos5440.c b/drivers/pinctrl/pinctrl-exynos5440.c
new file mode 100644
index 00000000000..b8635f634e9
--- /dev/null
+++ b/drivers/pinctrl/pinctrl-exynos5440.c
@@ -0,0 +1,919 @@
+/*
+ * pin-controller/pin-mux/pin-config/gpio-driver for Samsung's EXYNOS5440 SoC.
+ *
+ * Copyright (c) 2012 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/err.h>
+#include <linux/gpio.h>
+#include <linux/device.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/pinmux.h>
+#include <linux/pinctrl/pinconf.h>
+#include "core.h"
+
+/* EXYNOS5440 GPIO and Pinctrl register offsets */
+#define GPIO_MUX 0x00
+#define GPIO_IE 0x04
+#define GPIO_INT 0x08
+#define GPIO_TYPE 0x0C
+#define GPIO_VAL 0x10
+#define GPIO_OE 0x14
+#define GPIO_IN 0x18
+#define GPIO_PE 0x1C
+#define GPIO_PS 0x20
+#define GPIO_SR 0x24
+#define GPIO_DS0 0x28
+#define GPIO_DS1 0x2C
+
+#define EXYNOS5440_MAX_PINS 23
+#define PIN_NAME_LENGTH 10
+
+#define GROUP_SUFFIX "-grp"
+#define GSUFFIX_LEN sizeof(GROUP_SUFFIX)
+#define FUNCTION_SUFFIX "-mux"
+#define FSUFFIX_LEN sizeof(FUNCTION_SUFFIX)
+
+/*
+ * pin configuration type and its value are packed together into a 16-bits.
+ * The upper 8-bits represent the configuration type and the lower 8-bits
+ * hold the value of the configuration type.
+ */
+#define PINCFG_TYPE_MASK 0xFF
+#define PINCFG_VALUE_SHIFT 8
+#define PINCFG_VALUE_MASK (0xFF << PINCFG_VALUE_SHIFT)
+#define PINCFG_PACK(type, value) (((value) << PINCFG_VALUE_SHIFT) | type)
+#define PINCFG_UNPACK_TYPE(cfg) ((cfg) & PINCFG_TYPE_MASK)
+#define PINCFG_UNPACK_VALUE(cfg) (((cfg) & PINCFG_VALUE_MASK) >> \
+ PINCFG_VALUE_SHIFT)
+
+/**
+ * enum pincfg_type - possible pin configuration types supported.
+ * @PINCFG_TYPE_PUD: Pull up/down configuration.
+ * @PINCFG_TYPE_DRV: Drive strength configuration.
+ * @PINCFG_TYPE_SKEW_RATE: Skew rate configuration.
+ * @PINCFG_TYPE_INPUT_TYPE: Pin input type configuration.
+ */
+enum pincfg_type {
+ PINCFG_TYPE_PUD,
+ PINCFG_TYPE_DRV,
+ PINCFG_TYPE_SKEW_RATE,
+ PINCFG_TYPE_INPUT_TYPE
+};
+
+/**
+ * struct exynos5440_pin_group: represent group of pins for pincfg setting.
+ * @name: name of the pin group, used to lookup the group.
+ * @pins: the pins included in this group.
+ * @num_pins: number of pins included in this group.
+ */
+struct exynos5440_pin_group {
+ const char *name;
+ const unsigned int *pins;
+ u8 num_pins;
+};
+
+/**
+ * struct exynos5440_pmx_func: represent a pin function.
+ * @name: name of the pin function, used to lookup the function.
+ * @groups: one or more names of pin groups that provide this function.
+ * @num_groups: number of groups included in @groups.
+ * @function: the function number to be programmed when selected.
+ */
+struct exynos5440_pmx_func {
+ const char *name;
+ const char **groups;
+ u8 num_groups;
+ unsigned long function;
+};
+
+/**
+ * struct exynos5440_pinctrl_priv_data: driver's private runtime data.
+ * @reg_base: ioremapped based address of the register space.
+ * @gc: gpio chip registered with gpiolib.
+ * @pin_groups: list of pin groups parsed from device tree.
+ * @nr_groups: number of pin groups available.
+ * @pmx_functions: list of pin functions parsed from device tree.
+ * @nr_functions: number of pin functions available.
+ */
+struct exynos5440_pinctrl_priv_data {
+ void __iomem *reg_base;
+ struct gpio_chip *gc;
+
+ const struct exynos5440_pin_group *pin_groups;
+ unsigned int nr_groups;
+ const struct exynos5440_pmx_func *pmx_functions;
+ unsigned int nr_functions;
+};
+
+/* list of all possible config options supported */
+struct pin_config {
+ char *prop_cfg;
+ unsigned int cfg_type;
+} pcfgs[] = {
+ { "samsung,exynos5440-pin-pud", PINCFG_TYPE_PUD },
+ { "samsung,exynos5440-pin-drv", PINCFG_TYPE_DRV },
+ { "samsung,exynos5440-pin-skew-rate", PINCFG_TYPE_SKEW_RATE },
+ { "samsung,exynos5440-pin-input-type", PINCFG_TYPE_INPUT_TYPE },
+};
+
+/* check if the selector is a valid pin group selector */
+static int exynos5440_get_group_count(struct pinctrl_dev *pctldev)
+{
+ struct exynos5440_pinctrl_priv_data *priv;
+
+ priv = pinctrl_dev_get_drvdata(pctldev);
+ return priv->nr_groups;
+}
+
+/* return the name of the group selected by the group selector */
+static const char *exynos5440_get_group_name(struct pinctrl_dev *pctldev,
+ unsigned selector)
+{
+ struct exynos5440_pinctrl_priv_data *priv;
+
+ priv = pinctrl_dev_get_drvdata(pctldev);
+ return priv->pin_groups[selector].name;
+}
+
+/* return the pin numbers associated with the specified group */
+static int exynos5440_get_group_pins(struct pinctrl_dev *pctldev,
+ unsigned selector, const unsigned **pins, unsigned *num_pins)
+{
+ struct exynos5440_pinctrl_priv_data *priv;
+
+ priv = pinctrl_dev_get_drvdata(pctldev);
+ *pins = priv->pin_groups[selector].pins;
+ *num_pins = priv->pin_groups[selector].num_pins;
+ return 0;
+}
+
+/* create pinctrl_map entries by parsing device tree nodes */
+static int exynos5440_dt_node_to_map(struct pinctrl_dev *pctldev,
+ struct device_node *np, struct pinctrl_map **maps,
+ unsigned *nmaps)
+{
+ struct device *dev = pctldev->dev;
+ struct pinctrl_map *map;
+ unsigned long *cfg = NULL;
+ char *gname, *fname;
+ int cfg_cnt = 0, map_cnt = 0, idx = 0;
+
+ /* count the number of config options specfied in the node */
+ for (idx = 0; idx < ARRAY_SIZE(pcfgs); idx++)
+ if (of_find_property(np, pcfgs[idx].prop_cfg, NULL))
+ cfg_cnt++;
+
+ /*
+ * Find out the number of map entries to create. All the config options
+ * can be accomadated into a single config map entry.
+ */
+ if (cfg_cnt)
+ map_cnt = 1;
+ if (of_find_property(np, "samsung,exynos5440-pin-function", NULL))
+ map_cnt++;
+ if (!map_cnt) {
+ dev_err(dev, "node %s does not have either config or function "
+ "configurations\n", np->name);
+ return -EINVAL;
+ }
+
+ /* Allocate memory for pin-map entries */
+ map = kzalloc(sizeof(*map) * map_cnt, GFP_KERNEL);
+ if (!map) {
+ dev_err(dev, "could not alloc memory for pin-maps\n");
+ return -ENOMEM;
+ }
+ *nmaps = 0;
+
+ /*
+ * Allocate memory for pin group name. The pin group name is derived
+ * from the node name from which these map entries are be created.
+ */
+ gname = kzalloc(strlen(np->name) + GSUFFIX_LEN, GFP_KERNEL);
+ if (!gname) {
+ dev_err(dev, "failed to alloc memory for group name\n");
+ goto free_map;
+ }
+ sprintf(gname, "%s%s", np->name, GROUP_SUFFIX);
+
+ /*
+ * don't have config options? then skip over to creating function
+ * map entries.
+ */
+ if (!cfg_cnt)
+ goto skip_cfgs;
+
+ /* Allocate memory for config entries */
+ cfg = kzalloc(sizeof(*cfg) * cfg_cnt, GFP_KERNEL);
+ if (!cfg) {
+ dev_err(dev, "failed to alloc memory for configs\n");
+ goto free_gname;
+ }
+
+ /* Prepare a list of config settings */
+ for (idx = 0, cfg_cnt = 0; idx < ARRAY_SIZE(pcfgs); idx++) {
+ u32 value;
+ if (!of_property_read_u32(np, pcfgs[idx].prop_cfg, &value))
+ cfg[cfg_cnt++] =
+ PINCFG_PACK(pcfgs[idx].cfg_type, value);
+ }
+
+ /* create the config map entry */
+ map[*nmaps].data.configs.group_or_pin = gname;
+ map[*nmaps].data.configs.configs = cfg;
+ map[*nmaps].data.configs.num_configs = cfg_cnt;
+ map[*nmaps].type = PIN_MAP_TYPE_CONFIGS_GROUP;
+ *nmaps += 1;
+
+skip_cfgs:
+ /* create the function map entry */
+ if (of_find_property(np, "samsung,exynos5440-pin-function", NULL)) {
+ fname = kzalloc(strlen(np->name) + FSUFFIX_LEN, GFP_KERNEL);
+ if (!fname) {
+ dev_err(dev, "failed to alloc memory for func name\n");
+ goto free_cfg;
+ }
+ sprintf(fname, "%s%s", np->name, FUNCTION_SUFFIX);
+
+ map[*nmaps].data.mux.group = gname;
+ map[*nmaps].data.mux.function = fname;
+ map[*nmaps].type = PIN_MAP_TYPE_MUX_GROUP;
+ *nmaps += 1;
+ }
+
+ *maps = map;
+ return 0;
+
+free_cfg:
+ kfree(cfg);
+free_gname:
+ kfree(gname);
+free_map:
+ kfree(map);
+ return -ENOMEM;
+}
+
+/* free the memory allocated to hold the pin-map table */
+static void exynos5440_dt_free_map(struct pinctrl_dev *pctldev,
+ struct pinctrl_map *map, unsigned num_maps)
+{
+ int idx;
+
+ for (idx = 0; idx < num_maps; idx++) {
+ if (map[idx].type == PIN_MAP_TYPE_MUX_GROUP) {
+ kfree(map[idx].data.mux.function);
+ if (!idx)
+ kfree(map[idx].data.mux.group);
+ } else if (map->type == PIN_MAP_TYPE_CONFIGS_GROUP) {
+ kfree(map[idx].data.configs.configs);
+ if (!idx)
+ kfree(map[idx].data.configs.group_or_pin);
+ }
+ };
+
+ kfree(map);
+}
+
+/* list of pinctrl callbacks for the pinctrl core */
+static struct pinctrl_ops exynos5440_pctrl_ops = {
+ .get_groups_count = exynos5440_get_group_count,
+ .get_group_name = exynos5440_get_group_name,
+ .get_group_pins = exynos5440_get_group_pins,
+ .dt_node_to_map = exynos5440_dt_node_to_map,
+ .dt_free_map = exynos5440_dt_free_map,
+};
+
+/* check if the selector is a valid pin function selector */
+static int exynos5440_get_functions_count(struct pinctrl_dev *pctldev)
+{
+ struct exynos5440_pinctrl_priv_data *priv;
+
+ priv = pinctrl_dev_get_drvdata(pctldev);
+ return priv->nr_functions;
+}
+
+/* return the name of the pin function specified */
+static const char *exynos5440_pinmux_get_fname(struct pinctrl_dev *pctldev,
+ unsigned selector)
+{
+ struct exynos5440_pinctrl_priv_data *priv;
+
+ priv = pinctrl_dev_get_drvdata(pctldev);
+ return priv->pmx_functions[selector].name;
+}
+
+/* return the groups associated for the specified function selector */
+static int exynos5440_pinmux_get_groups(struct pinctrl_dev *pctldev,
+ unsigned selector, const char * const **groups,
+ unsigned * const num_groups)
+{
+ struct exynos5440_pinctrl_priv_data *priv;
+
+ priv = pinctrl_dev_get_drvdata(pctldev);
+ *groups = priv->pmx_functions[selector].groups;
+ *num_groups = priv->pmx_functions[selector].num_groups;
+ return 0;
+}
+
+/* enable or disable a pinmux function */
+static void exynos5440_pinmux_setup(struct pinctrl_dev *pctldev, unsigned selector,
+ unsigned group, bool enable)
+{
+ struct exynos5440_pinctrl_priv_data *priv;
+ void __iomem *base;
+ u32 function;
+ u32 data;
+
+ priv = pinctrl_dev_get_drvdata(pctldev);
+ base = priv->reg_base;
+ function = priv->pmx_functions[selector].function;
+
+ data = readl(base + GPIO_MUX);
+ if (enable)
+ data |= (1 << function);
+ else
+ data &= ~(1 << function);
+ writel(data, base + GPIO_MUX);
+}
+
+/* enable a specified pinmux by writing to registers */
+static int exynos5440_pinmux_enable(struct pinctrl_dev *pctldev, unsigned selector,
+ unsigned group)
+{
+ exynos5440_pinmux_setup(pctldev, selector, group, true);
+ return 0;
+}
+
+/* disable a specified pinmux by writing to registers */
+static void exynos5440_pinmux_disable(struct pinctrl_dev *pctldev,
+ unsigned selector, unsigned group)
+{
+ exynos5440_pinmux_setup(pctldev, selector, group, false);
+}
+
+/*
+ * The calls to gpio_direction_output() and gpio_direction_input()
+ * leads to this function call (via the pinctrl_gpio_direction_{input|output}()
+ * function called from the gpiolib interface).
+ */
+static int exynos5440_pinmux_gpio_set_direction(struct pinctrl_dev *pctldev,
+ struct pinctrl_gpio_range *range, unsigned offset, bool input)
+{
+ return 0;
+}
+
+/* list of pinmux callbacks for the pinmux vertical in pinctrl core */
+static struct pinmux_ops exynos5440_pinmux_ops = {
+ .get_functions_count = exynos5440_get_functions_count,
+ .get_function_name = exynos5440_pinmux_get_fname,
+ .get_function_groups = exynos5440_pinmux_get_groups,
+ .enable = exynos5440_pinmux_enable,
+ .disable = exynos5440_pinmux_disable,
+ .gpio_set_direction = exynos5440_pinmux_gpio_set_direction,
+};
+
+/* set the pin config settings for a specified pin */
+static int exynos5440_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
+ unsigned long config)
+{
+ struct exynos5440_pinctrl_priv_data *priv;
+ void __iomem *base;
+ enum pincfg_type cfg_type = PINCFG_UNPACK_TYPE(config);
+ u32 cfg_value = PINCFG_UNPACK_VALUE(config);
+ u32 data;
+
+ priv = pinctrl_dev_get_drvdata(pctldev);
+ base = priv->reg_base;
+
+ switch (cfg_type) {
+ case PINCFG_TYPE_PUD:
+ /* first set pull enable/disable bit */
+ data = readl(base + GPIO_PE);
+ data &= ~(1 << pin);
+ if (cfg_value)
+ data |= (1 << pin);
+ writel(data, base + GPIO_PE);
+
+ /* then set pull up/down bit */
+ data = readl(base + GPIO_PS);
+ data &= ~(1 << pin);
+ if (cfg_value == 2)
+ data |= (1 << pin);
+ writel(data, base + GPIO_PS);
+ break;
+
+ case PINCFG_TYPE_DRV:
+ /* set the first bit of the drive strength */
+ data = readl(base + GPIO_DS0);
+ data &= ~(1 << pin);
+ data |= ((cfg_value & 1) << pin);
+ writel(data, base + GPIO_DS0);
+ cfg_value >>= 1;
+
+ /* set the second bit of the driver strength */
+ data = readl(base + GPIO_DS1);
+ data &= ~(1 << pin);
+ data |= ((cfg_value & 1) << pin);
+ writel(data, base + GPIO_DS1);
+ break;
+ case PINCFG_TYPE_SKEW_RATE:
+ data = readl(base + GPIO_SR);
+ data &= ~(1 << pin);
+ data |= ((cfg_value & 1) << pin);
+ writel(data, base + GPIO_SR);
+ break;
+ case PINCFG_TYPE_INPUT_TYPE:
+ data = readl(base + GPIO_TYPE);
+ data &= ~(1 << pin);
+ data |= ((cfg_value & 1) << pin);
+ writel(data, base + GPIO_TYPE);
+ break;
+ default:
+ WARN_ON(1);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/* get the pin config settings for a specified pin */
+static int exynos5440_pinconf_get(struct pinctrl_dev *pctldev, unsigned int pin,
+ unsigned long *config)
+{
+ struct exynos5440_pinctrl_priv_data *priv;
+ void __iomem *base;
+ enum pincfg_type cfg_type = PINCFG_UNPACK_TYPE(*config);
+ u32 data;
+
+ priv = pinctrl_dev_get_drvdata(pctldev);
+ base = priv->reg_base;
+
+ switch (cfg_type) {
+ case PINCFG_TYPE_PUD:
+ data = readl(base + GPIO_PE);
+ data = (data >> pin) & 1;
+ if (!data)
+ *config = 0;
+ else
+ *config = ((readl(base + GPIO_PS) >> pin) & 1) + 1;
+ break;
+ case PINCFG_TYPE_DRV:
+ data = readl(base + GPIO_DS0);
+ data = (data >> pin) & 1;
+ *config = data;
+ data = readl(base + GPIO_DS1);
+ data = (data >> pin) & 1;
+ *config |= (data << 1);
+ break;
+ case PINCFG_TYPE_SKEW_RATE:
+ data = readl(base + GPIO_SR);
+ *config = (data >> pin) & 1;
+ break;
+ case PINCFG_TYPE_INPUT_TYPE:
+ data = readl(base + GPIO_TYPE);
+ *config = (data >> pin) & 1;
+ break;
+ default:
+ WARN_ON(1);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/* set the pin config settings for a specified pin group */
+static int exynos5440_pinconf_group_set(struct pinctrl_dev *pctldev,
+ unsigned group, unsigned long config)
+{
+ struct exynos5440_pinctrl_priv_data *priv;
+ const unsigned int *pins;
+ unsigned int cnt;
+
+ priv = pinctrl_dev_get_drvdata(pctldev);
+ pins = priv->pin_groups[group].pins;
+
+ for (cnt = 0; cnt < priv->pin_groups[group].num_pins; cnt++)
+ exynos5440_pinconf_set(pctldev, pins[cnt], config);
+
+ return 0;
+}
+
+/* get the pin config settings for a specified pin group */
+static int exynos5440_pinconf_group_get(struct pinctrl_dev *pctldev,
+ unsigned int group, unsigned long *config)
+{
+ struct exynos5440_pinctrl_priv_data *priv;
+ const unsigned int *pins;
+
+ priv = pinctrl_dev_get_drvdata(pctldev);
+ pins = priv->pin_groups[group].pins;
+ exynos5440_pinconf_get(pctldev, pins[0], config);
+ return 0;
+}
+
+/* list of pinconfig callbacks for pinconfig vertical in the pinctrl code */
+static struct pinconf_ops exynos5440_pinconf_ops = {
+ .pin_config_get = exynos5440_pinconf_get,
+ .pin_config_set = exynos5440_pinconf_set,
+ .pin_config_group_get = exynos5440_pinconf_group_get,
+ .pin_config_group_set = exynos5440_pinconf_group_set,
+};
+
+/* gpiolib gpio_set callback function */
+static void exynos5440_gpio_set(struct gpio_chip *gc, unsigned offset, int value)
+{
+ struct exynos5440_pinctrl_priv_data *priv = dev_get_drvdata(gc->dev);
+ void __iomem *base = priv->reg_base;
+ u32 data;
+
+ data = readl(base + GPIO_VAL);
+ data &= ~(1 << offset);
+ if (value)
+ data |= 1 << offset;
+ writel(data, base + GPIO_VAL);
+}
+
+/* gpiolib gpio_get callback function */
+static int exynos5440_gpio_get(struct gpio_chip *gc, unsigned offset)
+{
+ struct exynos5440_pinctrl_priv_data *priv = dev_get_drvdata(gc->dev);
+ void __iomem *base = priv->reg_base;
+ u32 data;
+
+ data = readl(base + GPIO_IN);
+ data >>= offset;
+ data &= 1;
+ return data;
+}
+
+/* gpiolib gpio_direction_input callback function */
+static int exynos5440_gpio_direction_input(struct gpio_chip *gc, unsigned offset)
+{
+ struct exynos5440_pinctrl_priv_data *priv = dev_get_drvdata(gc->dev);
+ void __iomem *base = priv->reg_base;
+ u32 data;
+
+ /* first disable the data output enable on this pin */
+ data = readl(base + GPIO_OE);
+ data &= ~(1 << offset);
+ writel(data, base + GPIO_OE);
+
+ /* now enable input on this pin */
+ data = readl(base + GPIO_IE);
+ data |= 1 << offset;
+ writel(data, base + GPIO_IE);
+ return 0;
+}
+
+/* gpiolib gpio_direction_output callback function */
+static int exynos5440_gpio_direction_output(struct gpio_chip *gc, unsigned offset,
+ int value)
+{
+ struct exynos5440_pinctrl_priv_data *priv = dev_get_drvdata(gc->dev);
+ void __iomem *base = priv->reg_base;
+ u32 data;
+
+ exynos5440_gpio_set(gc, offset, value);
+
+ /* first disable the data input enable on this pin */
+ data = readl(base + GPIO_IE);
+ data &= ~(1 << offset);
+ writel(data, base + GPIO_IE);
+
+ /* now enable output on this pin */
+ data = readl(base + GPIO_OE);
+ data |= 1 << offset;
+ writel(data, base + GPIO_OE);
+ return 0;
+}
+
+/* parse the pin numbers listed in the 'samsung,exynos5440-pins' property */
+static int __init exynos5440_pinctrl_parse_dt_pins(struct platform_device *pdev,
+ struct device_node *cfg_np, unsigned int **pin_list,
+ unsigned int *npins)
+{
+ struct device *dev = &pdev->dev;
+ struct property *prop;
+
+ prop = of_find_property(cfg_np, "samsung,exynos5440-pins", NULL);
+ if (!prop)
+ return -ENOENT;
+
+ *npins = prop->length / sizeof(unsigned long);
+ if (!*npins) {
+ dev_err(dev, "invalid pin list in %s node", cfg_np->name);
+ return -EINVAL;
+ }
+
+ *pin_list = devm_kzalloc(dev, *npins * sizeof(**pin_list), GFP_KERNEL);
+ if (!*pin_list) {
+ dev_err(dev, "failed to allocate memory for pin list\n");
+ return -ENOMEM;
+ }
+
+ return of_property_read_u32_array(cfg_np, "samsung,exynos5440-pins",
+ *pin_list, *npins);
+}
+
+/*
+ * Parse the information about all the available pin groups and pin functions
+ * from device node of the pin-controller.
+ */
+static int __init exynos5440_pinctrl_parse_dt(struct platform_device *pdev,
+ struct exynos5440_pinctrl_priv_data *priv)
+{
+ struct device *dev = &pdev->dev;
+ struct device_node *dev_np = dev->of_node;
+ struct device_node *cfg_np;
+ struct exynos5440_pin_group *groups, *grp;
+ struct exynos5440_pmx_func *functions, *func;
+ unsigned *pin_list;
+ unsigned int npins, grp_cnt, func_idx = 0;
+ char *gname, *fname;
+ int ret;
+
+ grp_cnt = of_get_child_count(dev_np);
+ if (!grp_cnt)
+ return -EINVAL;
+
+ groups = devm_kzalloc(dev, grp_cnt * sizeof(*groups), GFP_KERNEL);
+ if (!groups) {
+ dev_err(dev, "failed allocate memory for ping group list\n");
+ return -EINVAL;
+ }
+ grp = groups;
+
+ functions = devm_kzalloc(dev, grp_cnt * sizeof(*functions), GFP_KERNEL);
+ if (!functions) {
+ dev_err(dev, "failed to allocate memory for function list\n");
+ return -EINVAL;
+ }
+ func = functions;
+
+ /*
+ * Iterate over all the child nodes of the pin controller node
+ * and create pin groups and pin function lists.
+ */
+ for_each_child_of_node(dev_np, cfg_np) {
+ u32 function;
+
+ ret = exynos5440_pinctrl_parse_dt_pins(pdev, cfg_np,
+ &pin_list, &npins);
+ if (ret)
+ return ret;
+
+ /* derive pin group name from the node name */
+ gname = devm_kzalloc(dev, strlen(cfg_np->name) + GSUFFIX_LEN,
+ GFP_KERNEL);
+ if (!gname) {
+ dev_err(dev, "failed to alloc memory for group name\n");
+ return -ENOMEM;
+ }
+ sprintf(gname, "%s%s", cfg_np->name, GROUP_SUFFIX);
+
+ grp->name = gname;
+ grp->pins = pin_list;
+ grp->num_pins = npins;
+ grp++;
+
+ ret = of_property_read_u32(cfg_np, "samsung,exynos5440-pin-function",
+ &function);
+ if (ret)
+ continue;
+
+ /* derive function name from the node name */
+ fname = devm_kzalloc(dev, strlen(cfg_np->name) + FSUFFIX_LEN,
+ GFP_KERNEL);
+ if (!fname) {
+ dev_err(dev, "failed to alloc memory for func name\n");
+ return -ENOMEM;
+ }
+ sprintf(fname, "%s%s", cfg_np->name, FUNCTION_SUFFIX);
+
+ func->name = fname;
+ func->groups = devm_kzalloc(dev, sizeof(char *), GFP_KERNEL);
+ if (!func->groups) {
+ dev_err(dev, "failed to alloc memory for group list "
+ "in pin function");
+ return -ENOMEM;
+ }
+ func->groups[0] = gname;
+ func->num_groups = 1;
+ func->function = function;
+ func++;
+ func_idx++;
+ }
+
+ priv->pin_groups = groups;
+ priv->nr_groups = grp_cnt;
+ priv->pmx_functions = functions;
+ priv->nr_functions = func_idx;
+ return 0;
+}
+
+/* register the pinctrl interface with the pinctrl subsystem */
+static int __init exynos5440_pinctrl_register(struct platform_device *pdev,
+ struct exynos5440_pinctrl_priv_data *priv)
+{
+ struct device *dev = &pdev->dev;
+ struct pinctrl_desc *ctrldesc;
+ struct pinctrl_dev *pctl_dev;
+ struct pinctrl_pin_desc *pindesc, *pdesc;
+ struct pinctrl_gpio_range grange;
+ char *pin_names;
+ int pin, ret;
+
+ ctrldesc = devm_kzalloc(dev, sizeof(*ctrldesc), GFP_KERNEL);
+ if (!ctrldesc) {
+ dev_err(dev, "could not allocate memory for pinctrl desc\n");
+ return -ENOMEM;
+ }
+
+ ctrldesc->name = "exynos5440-pinctrl";
+ ctrldesc->owner = THIS_MODULE;
+ ctrldesc->pctlops = &exynos5440_pctrl_ops;
+ ctrldesc->pmxops = &exynos5440_pinmux_ops;
+ ctrldesc->confops = &exynos5440_pinconf_ops;
+
+ pindesc = devm_kzalloc(&pdev->dev, sizeof(*pindesc) *
+ EXYNOS5440_MAX_PINS, GFP_KERNEL);
+ if (!pindesc) {
+ dev_err(&pdev->dev, "mem alloc for pin descriptors failed\n");
+ return -ENOMEM;
+ }
+ ctrldesc->pins = pindesc;
+ ctrldesc->npins = EXYNOS5440_MAX_PINS;
+
+ /* dynamically populate the pin number and pin name for pindesc */
+ for (pin = 0, pdesc = pindesc; pin < ctrldesc->npins; pin++, pdesc++)
+ pdesc->number = pin;
+
+ /*
+ * allocate space for storing the dynamically generated names for all
+ * the pins which belong to this pin-controller.
+ */
+ pin_names = devm_kzalloc(&pdev->dev, sizeof(char) * PIN_NAME_LENGTH *
+ ctrldesc->npins, GFP_KERNEL);
+ if (!pin_names) {
+ dev_err(&pdev->dev, "mem alloc for pin names failed\n");
+ return -ENOMEM;
+ }
+
+ /* for each pin, set the name of the pin */
+ for (pin = 0; pin < ctrldesc->npins; pin++) {
+ sprintf(pin_names, "gpio%02d", pin);
+ pdesc = pindesc + pin;
+ pdesc->name = pin_names;
+ pin_names += PIN_NAME_LENGTH;
+ }
+
+ ret = exynos5440_pinctrl_parse_dt(pdev, priv);
+ if (ret)
+ return ret;
+
+ pctl_dev = pinctrl_register(ctrldesc, &pdev->dev, priv);
+ if (!pctl_dev) {
+ dev_err(&pdev->dev, "could not register pinctrl driver\n");
+ return -EINVAL;
+ }
+
+ grange.name = "exynos5440-pctrl-gpio-range";
+ grange.id = 0;
+ grange.base = 0;
+ grange.npins = EXYNOS5440_MAX_PINS;
+ grange.gc = priv->gc;
+ pinctrl_add_gpio_range(pctl_dev, &grange);
+ return 0;
+}
+
+/* register the gpiolib interface with the gpiolib subsystem */
+static int __init exynos5440_gpiolib_register(struct platform_device *pdev,
+ struct exynos5440_pinctrl_priv_data *priv)
+{
+ struct gpio_chip *gc;
+ int ret;
+
+ gc = devm_kzalloc(&pdev->dev, sizeof(*gc), GFP_KERNEL);
+ if (!gc) {
+ dev_err(&pdev->dev, "mem alloc for gpio_chip failed\n");
+ return -ENOMEM;
+ }
+
+ priv->gc = gc;
+ gc->base = 0;
+ gc->ngpio = EXYNOS5440_MAX_PINS;
+ gc->dev = &pdev->dev;
+ gc->set = exynos5440_gpio_set;
+ gc->get = exynos5440_gpio_get;
+ gc->direction_input = exynos5440_gpio_direction_input;
+ gc->direction_output = exynos5440_gpio_direction_output;
+ gc->label = "gpiolib-exynos5440";
+ gc->owner = THIS_MODULE;
+ ret = gpiochip_add(gc);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to register gpio_chip %s, error "
+ "code: %d\n", gc->label, ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+/* unregister the gpiolib interface with the gpiolib subsystem */
+static int __init exynos5440_gpiolib_unregister(struct platform_device *pdev,
+ struct exynos5440_pinctrl_priv_data *priv)
+{
+ int ret = gpiochip_remove(priv->gc);
+ if (ret) {
+ dev_err(&pdev->dev, "gpio chip remove failed\n");
+ return ret;
+ }
+ return 0;
+}
+
+static int __devinit exynos5440_pinctrl_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct exynos5440_pinctrl_priv_data *priv;
+ struct resource *res;
+ int ret;
+
+ if (!dev->of_node) {
+ dev_err(dev, "device tree node not found\n");
+ return -ENODEV;
+ }
+
+ priv = devm_kzalloc(dev, sizeof(priv), GFP_KERNEL);
+ if (!priv) {
+ dev_err(dev, "could not allocate memory for private data\n");
+ return -ENOMEM;
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res) {
+ dev_err(dev, "cannot find IO resource\n");
+ return -ENOENT;
+ }
+
+ priv->reg_base = devm_request_and_ioremap(&pdev->dev, res);
+ if (!priv->reg_base) {
+ dev_err(dev, "ioremap failed\n");
+ return -ENODEV;
+ }
+
+ ret = exynos5440_gpiolib_register(pdev, priv);
+ if (ret)
+ return ret;
+
+ ret = exynos5440_pinctrl_register(pdev, priv);
+ if (ret) {
+ exynos5440_gpiolib_unregister(pdev, priv);
+ return ret;
+ }
+
+ platform_set_drvdata(pdev, priv);
+ dev_info(dev, "EXYNOS5440 pinctrl driver registered\n");
+ return 0;
+}
+
+static const struct of_device_id exynos5440_pinctrl_dt_match[] = {
+ { .compatible = "samsung,exynos5440-pinctrl" },
+ {},
+};
+MODULE_DEVICE_TABLE(of, exynos5440_pinctrl_dt_match);
+
+static struct platform_driver exynos5440_pinctrl_driver = {
+ .probe = exynos5440_pinctrl_probe,
+ .driver = {
+ .name = "exynos5440-pinctrl",
+ .owner = THIS_MODULE,
+ .of_match_table = of_match_ptr(exynos5440_pinctrl_dt_match),
+ },
+};
+
+static int __init exynos5440_pinctrl_drv_register(void)
+{
+ return platform_driver_register(&exynos5440_pinctrl_driver);
+}
+postcore_initcall(exynos5440_pinctrl_drv_register);
+
+static void __exit exynos5440_pinctrl_drv_unregister(void)
+{
+ platform_driver_unregister(&exynos5440_pinctrl_driver);
+}
+module_exit(exynos5440_pinctrl_drv_unregister);
+
+MODULE_AUTHOR("Thomas Abraham <thomas.ab@samsung.com>");
+MODULE_DESCRIPTION("Samsung EXYNOS5440 SoC pinctrl driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/pinctrl/pinctrl-samsung.c b/drivers/pinctrl/pinctrl-samsung.c
index 861cd5f04d5..8f31b656c4e 100644
--- a/drivers/pinctrl/pinctrl-samsung.c
+++ b/drivers/pinctrl/pinctrl-samsung.c
@@ -26,6 +26,7 @@
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/gpio.h>
+#include <linux/irqdomain.h>
#include "core.h"
#include "pinctrl-samsung.h"
@@ -46,6 +47,13 @@ struct pin_config {
{ "samsung,pin-pud-pdn", PINCFG_TYPE_PUD_PDN },
};
+static unsigned int pin_base;
+
+static inline struct samsung_pin_bank *gc_to_pin_bank(struct gpio_chip *gc)
+{
+ return container_of(gc, struct samsung_pin_bank, gpio_chip);
+}
+
/* check if the selector is a valid pin group selector */
static int samsung_get_group_count(struct pinctrl_dev *pctldev)
{
@@ -250,14 +258,12 @@ static int samsung_pinmux_get_groups(struct pinctrl_dev *pctldev,
* given a pin number that is local to a pin controller, find out the pin bank
* and the register base of the pin bank.
*/
-static void pin_to_reg_bank(struct gpio_chip *gc, unsigned pin,
- void __iomem **reg, u32 *offset,
+static void pin_to_reg_bank(struct samsung_pinctrl_drv_data *drvdata,
+ unsigned pin, void __iomem **reg, u32 *offset,
struct samsung_pin_bank **bank)
{
- struct samsung_pinctrl_drv_data *drvdata;
struct samsung_pin_bank *b;
- drvdata = dev_get_drvdata(gc->dev);
b = drvdata->ctrl->pin_banks;
while ((pin >= b->pin_base) &&
@@ -292,7 +298,7 @@ static void samsung_pinmux_setup(struct pinctrl_dev *pctldev, unsigned selector,
* pin function number in the config register.
*/
for (cnt = 0; cnt < drvdata->pin_groups[group].num_pins; cnt++) {
- pin_to_reg_bank(drvdata->gc, pins[cnt] - drvdata->ctrl->base,
+ pin_to_reg_bank(drvdata, pins[cnt] - drvdata->ctrl->base,
&reg, &pin_offset, &bank);
mask = (1 << bank->func_width) - 1;
shift = pin_offset * bank->func_width;
@@ -329,10 +335,16 @@ static int samsung_pinmux_gpio_set_direction(struct pinctrl_dev *pctldev,
struct pinctrl_gpio_range *range, unsigned offset, bool input)
{
struct samsung_pin_bank *bank;
+ struct samsung_pinctrl_drv_data *drvdata;
void __iomem *reg;
u32 data, pin_offset, mask, shift;
- pin_to_reg_bank(range->gc, offset, &reg, &pin_offset, &bank);
+ bank = gc_to_pin_bank(range->gc);
+ drvdata = pinctrl_dev_get_drvdata(pctldev);
+
+ pin_offset = offset - bank->pin_base;
+ reg = drvdata->virt_base + bank->pctl_offset;
+
mask = (1 << bank->func_width) - 1;
shift = pin_offset * bank->func_width;
@@ -366,7 +378,7 @@ static int samsung_pinconf_rw(struct pinctrl_dev *pctldev, unsigned int pin,
u32 cfg_value, cfg_reg;
drvdata = pinctrl_dev_get_drvdata(pctldev);
- pin_to_reg_bank(drvdata->gc, pin - drvdata->ctrl->base, &reg_base,
+ pin_to_reg_bank(drvdata, pin - drvdata->ctrl->base, &reg_base,
&pin_offset, &bank);
switch (cfg_type) {
@@ -391,6 +403,9 @@ static int samsung_pinconf_rw(struct pinctrl_dev *pctldev, unsigned int pin,
return -EINVAL;
}
+ if (!width)
+ return -EINVAL;
+
mask = (1 << width) - 1;
shift = pin_offset * width;
data = readl(reg_base + cfg_reg);
@@ -463,14 +478,16 @@ static struct pinconf_ops samsung_pinconf_ops = {
/* gpiolib gpio_set callback function */
static void samsung_gpio_set(struct gpio_chip *gc, unsigned offset, int value)
{
+ struct samsung_pin_bank *bank = gc_to_pin_bank(gc);
void __iomem *reg;
- u32 pin_offset, data;
+ u32 data;
+
+ reg = bank->drvdata->virt_base + bank->pctl_offset;
- pin_to_reg_bank(gc, offset, &reg, &pin_offset, NULL);
data = readl(reg + DAT_REG);
- data &= ~(1 << pin_offset);
+ data &= ~(1 << offset);
if (value)
- data |= 1 << pin_offset;
+ data |= 1 << offset;
writel(data, reg + DAT_REG);
}
@@ -478,11 +495,13 @@ static void samsung_gpio_set(struct gpio_chip *gc, unsigned offset, int value)
static int samsung_gpio_get(struct gpio_chip *gc, unsigned offset)
{
void __iomem *reg;
- u32 pin_offset, data;
+ u32 data;
+ struct samsung_pin_bank *bank = gc_to_pin_bank(gc);
+
+ reg = bank->drvdata->virt_base + bank->pctl_offset;
- pin_to_reg_bank(gc, offset, &reg, &pin_offset, NULL);
data = readl(reg + DAT_REG);
- data >>= pin_offset;
+ data >>= offset;
data &= 1;
return data;
}
@@ -510,6 +529,23 @@ static int samsung_gpio_direction_output(struct gpio_chip *gc, unsigned offset,
}
/*
+ * gpiolib gpio_to_irq callback function. Creates a mapping between a GPIO pin
+ * and a virtual IRQ, if not already present.
+ */
+static int samsung_gpio_to_irq(struct gpio_chip *gc, unsigned offset)
+{
+ struct samsung_pin_bank *bank = gc_to_pin_bank(gc);
+ unsigned int virq;
+
+ if (!bank->irq_domain)
+ return -ENXIO;
+
+ virq = irq_create_mapping(bank->irq_domain, offset);
+
+ return (virq) ? : -ENXIO;
+}
+
+/*
* Parse the pin names listed in the 'samsung,pins' property and convert it
* into a list of gpio numbers are create a pin group from it.
*/
@@ -524,7 +560,7 @@ static int __devinit samsung_pinctrl_parse_dt_pins(struct platform_device *pdev,
const char *pin_name;
*npins = of_property_count_strings(cfg_np, "samsung,pins");
- if (*npins < 0) {
+ if (IS_ERR_VALUE(*npins)) {
dev_err(dev, "invalid pin list in %s node", cfg_np->name);
return -EINVAL;
}
@@ -597,7 +633,7 @@ static int __devinit samsung_pinctrl_parse_dt(struct platform_device *pdev,
*/
for_each_child_of_node(dev_np, cfg_np) {
u32 function;
- if (of_find_property(cfg_np, "interrupt-controller", NULL))
+ if (!of_find_property(cfg_np, "samsung,pins", NULL))
continue;
ret = samsung_pinctrl_parse_dt_pins(pdev, cfg_np,
@@ -712,12 +748,16 @@ static int __devinit samsung_pinctrl_register(struct platform_device *pdev,
return -EINVAL;
}
- drvdata->grange.name = "samsung-pctrl-gpio-range";
- drvdata->grange.id = 0;
- drvdata->grange.base = drvdata->ctrl->base;
- drvdata->grange.npins = drvdata->ctrl->nr_pins;
- drvdata->grange.gc = drvdata->gc;
- pinctrl_add_gpio_range(drvdata->pctl_dev, &drvdata->grange);
+ for (bank = 0; bank < drvdata->ctrl->nr_banks; ++bank) {
+ pin_bank = &drvdata->ctrl->pin_banks[bank];
+ pin_bank->grange.name = pin_bank->name;
+ pin_bank->grange.id = bank;
+ pin_bank->grange.pin_base = pin_bank->pin_base;
+ pin_bank->grange.base = pin_bank->gpio_chip.base;
+ pin_bank->grange.npins = pin_bank->gpio_chip.ngpio;
+ pin_bank->grange.gc = &pin_bank->gpio_chip;
+ pinctrl_add_gpio_range(drvdata->pctl_dev, &pin_bank->grange);
+ }
ret = samsung_pinctrl_parse_dt(pdev, drvdata);
if (ret) {
@@ -728,68 +768,117 @@ static int __devinit samsung_pinctrl_register(struct platform_device *pdev,
return 0;
}
+static const struct gpio_chip samsung_gpiolib_chip = {
+ .set = samsung_gpio_set,
+ .get = samsung_gpio_get,
+ .direction_input = samsung_gpio_direction_input,
+ .direction_output = samsung_gpio_direction_output,
+ .to_irq = samsung_gpio_to_irq,
+ .owner = THIS_MODULE,
+};
+
/* register the gpiolib interface with the gpiolib subsystem */
static int __devinit samsung_gpiolib_register(struct platform_device *pdev,
struct samsung_pinctrl_drv_data *drvdata)
{
+ struct samsung_pin_ctrl *ctrl = drvdata->ctrl;
+ struct samsung_pin_bank *bank = ctrl->pin_banks;
struct gpio_chip *gc;
int ret;
-
- gc = devm_kzalloc(&pdev->dev, sizeof(*gc), GFP_KERNEL);
- if (!gc) {
- dev_err(&pdev->dev, "mem alloc for gpio_chip failed\n");
- return -ENOMEM;
- }
-
- drvdata->gc = gc;
- gc->base = drvdata->ctrl->base;
- gc->ngpio = drvdata->ctrl->nr_pins;
- gc->dev = &pdev->dev;
- gc->set = samsung_gpio_set;
- gc->get = samsung_gpio_get;
- gc->direction_input = samsung_gpio_direction_input;
- gc->direction_output = samsung_gpio_direction_output;
- gc->label = drvdata->ctrl->label;
- gc->owner = THIS_MODULE;
- ret = gpiochip_add(gc);
- if (ret) {
- dev_err(&pdev->dev, "failed to register gpio_chip %s, error "
- "code: %d\n", gc->label, ret);
- return ret;
+ int i;
+
+ for (i = 0; i < ctrl->nr_banks; ++i, ++bank) {
+ bank->gpio_chip = samsung_gpiolib_chip;
+
+ gc = &bank->gpio_chip;
+ gc->base = ctrl->base + bank->pin_base;
+ gc->ngpio = bank->nr_pins;
+ gc->dev = &pdev->dev;
+ gc->of_node = bank->of_node;
+ gc->label = bank->name;
+
+ ret = gpiochip_add(gc);
+ if (ret) {
+ dev_err(&pdev->dev, "failed to register gpio_chip %s, error code: %d\n",
+ gc->label, ret);
+ goto fail;
+ }
}
return 0;
+
+fail:
+ for (--i, --bank; i >= 0; --i, --bank)
+ if (gpiochip_remove(&bank->gpio_chip))
+ dev_err(&pdev->dev, "gpio chip %s remove failed\n",
+ bank->gpio_chip.label);
+ return ret;
}
/* unregister the gpiolib interface with the gpiolib subsystem */
static int __devinit samsung_gpiolib_unregister(struct platform_device *pdev,
struct samsung_pinctrl_drv_data *drvdata)
{
- int ret = gpiochip_remove(drvdata->gc);
- if (ret) {
+ struct samsung_pin_ctrl *ctrl = drvdata->ctrl;
+ struct samsung_pin_bank *bank = ctrl->pin_banks;
+ int ret = 0;
+ int i;
+
+ for (i = 0; !ret && i < ctrl->nr_banks; ++i, ++bank)
+ ret = gpiochip_remove(&bank->gpio_chip);
+
+ if (ret)
dev_err(&pdev->dev, "gpio chip remove failed\n");
- return ret;
- }
- return 0;
+
+ return ret;
}
static const struct of_device_id samsung_pinctrl_dt_match[];
/* retrieve the soc specific data */
static struct samsung_pin_ctrl *samsung_pinctrl_get_soc_data(
+ struct samsung_pinctrl_drv_data *d,
struct platform_device *pdev)
{
int id;
const struct of_device_id *match;
- const struct device_node *node = pdev->dev.of_node;
+ struct device_node *node = pdev->dev.of_node;
+ struct device_node *np;
+ struct samsung_pin_ctrl *ctrl;
+ struct samsung_pin_bank *bank;
+ int i;
- id = of_alias_get_id(pdev->dev.of_node, "pinctrl");
+ id = of_alias_get_id(node, "pinctrl");
if (id < 0) {
dev_err(&pdev->dev, "failed to get alias id\n");
return NULL;
}
match = of_match_node(samsung_pinctrl_dt_match, node);
- return (struct samsung_pin_ctrl *)match->data + id;
+ ctrl = (struct samsung_pin_ctrl *)match->data + id;
+
+ bank = ctrl->pin_banks;
+ for (i = 0; i < ctrl->nr_banks; ++i, ++bank) {
+ bank->drvdata = d;
+ bank->pin_base = ctrl->nr_pins;
+ ctrl->nr_pins += bank->nr_pins;
+ }
+
+ for_each_child_of_node(node, np) {
+ if (!of_find_property(np, "gpio-controller", NULL))
+ continue;
+ bank = ctrl->pin_banks;
+ for (i = 0; i < ctrl->nr_banks; ++i, ++bank) {
+ if (!strcmp(bank->name, np->name)) {
+ bank->of_node = np;
+ break;
+ }
+ }
+ }
+
+ ctrl->base = pin_base;
+ pin_base += ctrl->nr_pins;
+
+ return ctrl;
}
static int __devinit samsung_pinctrl_probe(struct platform_device *pdev)
@@ -805,18 +894,18 @@ static int __devinit samsung_pinctrl_probe(struct platform_device *pdev)
return -ENODEV;
}
- ctrl = samsung_pinctrl_get_soc_data(pdev);
- if (!ctrl) {
- dev_err(&pdev->dev, "driver data not available\n");
- return -EINVAL;
- }
-
drvdata = devm_kzalloc(dev, sizeof(*drvdata), GFP_KERNEL);
if (!drvdata) {
dev_err(dev, "failed to allocate memory for driver's "
"private data\n");
return -ENOMEM;
}
+
+ ctrl = samsung_pinctrl_get_soc_data(drvdata, pdev);
+ if (!ctrl) {
+ dev_err(&pdev->dev, "driver data not available\n");
+ return -EINVAL;
+ }
drvdata->ctrl = ctrl;
drvdata->dev = dev;
@@ -858,6 +947,8 @@ static int __devinit samsung_pinctrl_probe(struct platform_device *pdev)
static const struct of_device_id samsung_pinctrl_dt_match[] = {
{ .compatible = "samsung,pinctrl-exynos4210",
.data = (void *)exynos4210_pin_ctrl },
+ { .compatible = "samsung,pinctrl-exynos4x12",
+ .data = (void *)exynos4x12_pin_ctrl },
{},
};
MODULE_DEVICE_TABLE(of, samsung_pinctrl_dt_match);
diff --git a/drivers/pinctrl/pinctrl-samsung.h b/drivers/pinctrl/pinctrl-samsung.h
index b8956934cda..5addfd16e3c 100644
--- a/drivers/pinctrl/pinctrl-samsung.h
+++ b/drivers/pinctrl/pinctrl-samsung.h
@@ -23,6 +23,8 @@
#include <linux/pinctrl/consumer.h>
#include <linux/pinctrl/machine.h>
+#include <linux/gpio.h>
+
/* register offsets within a pin bank */
#define DAT_REG 0x4
#define PUD_REG 0x8
@@ -64,6 +66,7 @@ enum pincfg_type {
* @EINT_TYPE_NONE: bank does not support external interrupts
* @EINT_TYPE_GPIO: bank supportes external gpio interrupts
* @EINT_TYPE_WKUP: bank supportes external wakeup interrupts
+ * @EINT_TYPE_WKUP_MUX: bank supports multiplexed external wakeup interrupts
*
* Samsung GPIO controller groups all the available pins into banks. The pins
* in a pin bank can support external gpio interrupts or external wakeup
@@ -76,6 +79,7 @@ enum eint_type {
EINT_TYPE_NONE,
EINT_TYPE_GPIO,
EINT_TYPE_WKUP,
+ EINT_TYPE_WKUP_MUX,
};
/* maximum length of a pin in pin descriptor (example: "gpa0-0") */
@@ -109,8 +113,12 @@ struct samsung_pinctrl_drv_data;
* @conpdn_width: width of the sleep mode function selector bin field.
* @pudpdn_width: width of the sleep mode pull up/down selector bit field.
* @eint_type: type of the external interrupt supported by the bank.
- * @irq_base: starting controller local irq number of the bank.
* @name: name to be prefixed for each pin in this pin bank.
+ * @of_node: OF node of the bank.
+ * @drvdata: link to controller driver data
+ * @irq_domain: IRQ domain of the bank.
+ * @gpio_chip: GPIO chip of the bank.
+ * @grange: linux gpio pin range supported by this bank.
*/
struct samsung_pin_bank {
u32 pctl_offset;
@@ -122,8 +130,13 @@ struct samsung_pin_bank {
u8 conpdn_width;
u8 pudpdn_width;
enum eint_type eint_type;
- u32 irq_base;
+ u32 eint_offset;
char *name;
+ struct device_node *of_node;
+ struct samsung_pinctrl_drv_data *drvdata;
+ struct irq_domain *irq_domain;
+ struct gpio_chip gpio_chip;
+ struct pinctrl_gpio_range grange;
};
/**
@@ -132,8 +145,6 @@ struct samsung_pin_bank {
* @nr_banks: number of pin banks.
* @base: starting system wide pin number.
* @nr_pins: number of pins supported by the controller.
- * @nr_gint: number of external gpio interrupts supported.
- * @nr_wint: number of external wakeup interrupts supported.
* @geint_con: offset of the ext-gpio controller registers.
* @geint_mask: offset of the ext-gpio interrupt mask registers.
* @geint_pend: offset of the ext-gpio interrupt pending registers.
@@ -153,8 +164,6 @@ struct samsung_pin_ctrl {
u32 base;
u32 nr_pins;
- u32 nr_gint;
- u32 nr_wint;
u32 geint_con;
u32 geint_mask;
@@ -183,8 +192,6 @@ struct samsung_pin_ctrl {
* @nr_groups: number of such pin groups.
* @pmx_functions: list of pin functions available to the driver.
* @nr_function: number of such pin functions.
- * @gc: gpio_chip instance registered with gpiolib.
- * @grange: linux gpio pin range supported by this controller.
*/
struct samsung_pinctrl_drv_data {
void __iomem *virt_base;
@@ -199,12 +206,6 @@ struct samsung_pinctrl_drv_data {
unsigned int nr_groups;
const struct samsung_pmx_func *pmx_functions;
unsigned int nr_functions;
-
- struct irq_domain *gpio_irqd;
- struct irq_domain *wkup_irqd;
-
- struct gpio_chip *gc;
- struct pinctrl_gpio_range grange;
};
/**
@@ -235,5 +236,6 @@ struct samsung_pmx_func {
/* list of all exported SoC specific data */
extern struct samsung_pin_ctrl exynos4210_pin_ctrl[];
+extern struct samsung_pin_ctrl exynos4x12_pin_ctrl[];
#endif /* __PINCTRL_SAMSUNG_H */
diff --git a/drivers/sh/clk/cpg.c b/drivers/sh/clk/cpg.c
index 07e9fb4f804..b3dc44146ca 100644
--- a/drivers/sh/clk/cpg.c
+++ b/drivers/sh/clk/cpg.c
@@ -361,3 +361,89 @@ int __init sh_clk_div4_reparent_register(struct clk *clks, int nr,
return sh_clk_div_register_ops(clks, nr, table,
&sh_clk_div4_reparent_clk_ops);
}
+
+/* FSI-DIV */
+static unsigned long fsidiv_recalc(struct clk *clk)
+{
+ u32 value;
+
+ value = __raw_readl(clk->mapping->base);
+
+ value >>= 16;
+ if (value < 2)
+ return clk->parent->rate;
+
+ return clk->parent->rate / value;
+}
+
+static long fsidiv_round_rate(struct clk *clk, unsigned long rate)
+{
+ return clk_rate_div_range_round(clk, 1, 0xffff, rate);
+}
+
+static void fsidiv_disable(struct clk *clk)
+{
+ __raw_writel(0, clk->mapping->base);
+}
+
+static int fsidiv_enable(struct clk *clk)
+{
+ u32 value;
+
+ value = __raw_readl(clk->mapping->base) >> 16;
+ if (value < 2)
+ return 0;
+
+ __raw_writel((value << 16) | 0x3, clk->mapping->base);
+
+ return 0;
+}
+
+static int fsidiv_set_rate(struct clk *clk, unsigned long rate)
+{
+ u32 val;
+ int idx;
+
+ idx = (clk->parent->rate / rate) & 0xffff;
+ if (idx < 2)
+ __raw_writel(0, clk->mapping->base);
+ else
+ __raw_writel(idx << 16, clk->mapping->base);
+
+ return 0;
+}
+
+static struct sh_clk_ops fsidiv_clk_ops = {
+ .recalc = fsidiv_recalc,
+ .round_rate = fsidiv_round_rate,
+ .set_rate = fsidiv_set_rate,
+ .enable = fsidiv_enable,
+ .disable = fsidiv_disable,
+};
+
+int __init sh_clk_fsidiv_register(struct clk *clks, int nr)
+{
+ struct clk_mapping *map;
+ int i;
+
+ for (i = 0; i < nr; i++) {
+
+ map = kzalloc(sizeof(struct clk_mapping), GFP_KERNEL);
+ if (!map) {
+ pr_err("%s: unable to alloc memory\n", __func__);
+ return -ENOMEM;
+ }
+
+ /* clks[i].enable_reg came from SH_CLK_FSIDIV() */
+ map->phys = (phys_addr_t)clks[i].enable_reg;
+ map->len = 8;
+
+ clks[i].enable_reg = 0; /* remove .enable_reg */
+ clks[i].ops = &fsidiv_clk_ops;
+ clks[i].mapping = map;
+
+ clk_register(&clks[i]);
+ }
+
+ return 0;
+}
diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c
index fb0e0f0bed0..12e5249d053 100644
--- a/drivers/tty/serial/samsung.c
+++ b/drivers/tty/serial/samsung.c
@@ -1654,7 +1654,8 @@ static struct s3c24xx_serial_drv_data s5pv210_serial_drv_data = {
#endif
#if defined(CONFIG_CPU_EXYNOS4210) || defined(CONFIG_SOC_EXYNOS4212) || \
- defined(CONFIG_SOC_EXYNOS4412) || defined(CONFIG_SOC_EXYNOS5250)
+ defined(CONFIG_SOC_EXYNOS4412) || defined(CONFIG_SOC_EXYNOS5250) || \
+ defined(CONFIG_SOC_EXYNOS5440)
static struct s3c24xx_serial_drv_data exynos4210_serial_drv_data = {
.info = &(struct s3c24xx_uart_info) {
.name = "Samsung Exynos4 UART",
diff --git a/drivers/uio/Kconfig b/drivers/uio/Kconfig
index 82e2b89d448..f56d185790e 100644
--- a/drivers/uio/Kconfig
+++ b/drivers/uio/Kconfig
@@ -113,6 +113,7 @@ config UIO_NETX
config UIO_PRUSS
tristate "Texas Instruments PRUSS driver"
depends on ARCH_DAVINCI_DA850
+ select GENERIC_ALLOCATOR
help
PRUSS driver for OMAPL138/DA850/AM18XX devices
PRUSS driver requires user space components, examples and user space
diff --git a/drivers/uio/uio_pruss.c b/drivers/uio/uio_pruss.c
index cce0f78341c..6e2ab007fe9 100644
--- a/drivers/uio/uio_pruss.c
+++ b/drivers/uio/uio_pruss.c
@@ -25,7 +25,7 @@
#include <linux/clk.h>
#include <linux/dma-mapping.h>
#include <linux/slab.h>
-#include <mach/sram.h>
+#include <linux/genalloc.h>
#define DRV_NAME "pruss_uio"
#define DRV_VERSION "1.0"
@@ -65,10 +65,11 @@ struct uio_pruss_dev {
dma_addr_t sram_paddr;
dma_addr_t ddr_paddr;
void __iomem *prussio_vaddr;
- void *sram_vaddr;
+ unsigned long sram_vaddr;
void *ddr_vaddr;
unsigned int hostirq_start;
unsigned int pintc_base;
+ struct gen_pool *sram_pool;
};
static irqreturn_t pruss_handler(int irq, struct uio_info *info)
@@ -106,7 +107,9 @@ static void pruss_cleanup(struct platform_device *dev,
gdev->ddr_paddr);
}
if (gdev->sram_vaddr)
- sram_free(gdev->sram_vaddr, sram_pool_sz);
+ gen_pool_free(gdev->sram_pool,
+ gdev->sram_vaddr,
+ sram_pool_sz);
kfree(gdev->info);
clk_put(gdev->pruss_clk);
kfree(gdev);
@@ -152,10 +155,17 @@ static int pruss_probe(struct platform_device *dev)
goto out_free;
}
- gdev->sram_vaddr = sram_alloc(sram_pool_sz, &(gdev->sram_paddr));
- if (!gdev->sram_vaddr) {
- dev_err(&dev->dev, "Could not allocate SRAM pool\n");
- goto out_free;
+ if (pdata->sram_pool) {
+ gdev->sram_pool = pdata->sram_pool;
+ gdev->sram_vaddr =
+ gen_pool_alloc(gdev->sram_pool, sram_pool_sz);
+ if (!gdev->sram_vaddr) {
+ dev_err(&dev->dev, "Could not allocate SRAM pool\n");
+ goto out_free;
+ }
+ gdev->sram_paddr =
+ gen_pool_virt_to_phys(gdev->sram_pool,
+ gdev->sram_vaddr);
}
gdev->ddr_vaddr = dma_alloc_coherent(&dev->dev, extram_pool_sz,
diff --git a/drivers/video/clps711xfb.c b/drivers/video/clps711xfb.c
index f994c8b8f10..63ecdf8f7ba 100644
--- a/drivers/video/clps711xfb.c
+++ b/drivers/video/clps711xfb.c
@@ -22,19 +22,15 @@
#include <linux/mm.h>
#include <linux/module.h>
#include <linux/kernel.h>
-#include <linux/seq_file.h>
#include <linux/slab.h>
#include <linux/fb.h>
#include <linux/init.h>
-#include <linux/proc_fs.h>
#include <linux/delay.h>
#include <mach/hardware.h>
#include <asm/mach-types.h>
#include <linux/uaccess.h>
-#include <mach/syspld.h>
-
struct fb_info *cfb;
#define CMAP_MAX_SIZE 16
@@ -162,44 +158,12 @@ clps7111fb_set_par(struct fb_info *info)
static int clps7111fb_blank(int blank, struct fb_info *info)
{
- if (blank) {
- if (machine_is_edb7211()) {
- /* Turn off the LCD backlight. */
- clps_writeb(clps_readb(PDDR) & ~EDB_PD3_LCDBL, PDDR);
-
- /* Power off the LCD DC-DC converter. */
- clps_writeb(clps_readb(PDDR) & ~EDB_PD1_LCD_DC_DC_EN, PDDR);
-
- /* Delay for a little while (half a second). */
- udelay(100);
-
- /* Power off the LCD panel. */
- clps_writeb(clps_readb(PDDR) & ~EDB_PD2_LCDEN, PDDR);
-
- /* Power off the LCD controller. */
- clps_writel(clps_readl(SYSCON1) & ~SYSCON1_LCDEN,
- SYSCON1);
- }
- } else {
- if (machine_is_edb7211()) {
- /* Power up the LCD controller. */
- clps_writel(clps_readl(SYSCON1) | SYSCON1_LCDEN,
- SYSCON1);
-
- /* Power up the LCD panel. */
- clps_writeb(clps_readb(PDDR) | EDB_PD2_LCDEN, PDDR);
-
- /* Delay for a little while. */
- udelay(100);
+ /* Enable/Disable LCD controller. */
+ if (blank)
+ clps_writel(clps_readl(SYSCON1) & ~SYSCON1_LCDEN, SYSCON1);
+ else
+ clps_writel(clps_readl(SYSCON1) | SYSCON1_LCDEN, SYSCON1);
- /* Power up the LCD DC-DC converter. */
- clps_writeb(clps_readb(PDDR) | EDB_PD1_LCD_DC_DC_EN,
- PDDR);
-
- /* Turn on the LCD backlight. */
- clps_writeb(clps_readb(PDDR) | EDB_PD3_LCDBL, PDDR);
- }
- }
return 0;
}
@@ -214,63 +178,7 @@ static struct fb_ops clps7111fb_ops = {
.fb_imageblit = cfb_imageblit,
};
-static int backlight_proc_show(struct seq_file *m, void *v)
-{
- if (machine_is_edb7211()) {
- seq_printf(m, "%d\n",
- (clps_readb(PDDR) & EDB_PD3_LCDBL) ? 1 : 0);
- }
-
- return 0;
-}
-
-static int backlight_proc_open(struct inode *inode, struct file *file)
-{
- return single_open(file, backlight_proc_show, NULL);
-}
-
-static ssize_t backlight_proc_write(struct file *file, const char *buffer,
- size_t count, loff_t *pos)
-{
- unsigned char char_value;
- int value;
-
- if (count < 1) {
- return -EINVAL;
- }
-
- if (copy_from_user(&char_value, buffer, 1))
- return -EFAULT;
-
- value = char_value - '0';
-
- if (machine_is_edb7211()) {
- unsigned char port_d;
-
- port_d = clps_readb(PDDR);
-
- if (value) {
- port_d |= EDB_PD3_LCDBL;
- } else {
- port_d &= ~EDB_PD3_LCDBL;
- }
-
- clps_writeb(port_d, PDDR);
- }
-
- return count;
-}
-
-static const struct file_operations backlight_proc_fops = {
- .owner = THIS_MODULE,
- .open = backlight_proc_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
- .write = backlight_proc_write,
-};
-
-static void __init clps711x_guess_lcd_params(struct fb_info *info)
+static void __devinit clps711x_guess_lcd_params(struct fb_info *info)
{
unsigned int lcdcon, syscon, size;
unsigned long phys_base = PAGE_OFFSET;
@@ -358,7 +266,7 @@ static void __init clps711x_guess_lcd_params(struct fb_info *info)
info->fix.type = FB_TYPE_PACKED_PIXELS;
}
-int __init clps711xfb_init(void)
+static int __devinit clps711x_fb_probe(struct platform_device *pdev)
{
int err = -ENOMEM;
@@ -378,55 +286,29 @@ int __init clps711xfb_init(void)
fb_alloc_cmap(&cfb->cmap, CMAP_MAX_SIZE, 0);
- if (!proc_create("backlight", 0444, NULL, &backlight_proc_fops)) {
- printk("Couldn't create the /proc entry for the backlight.\n");
- return -EINVAL;
- }
-
- /*
- * Power up the LCD
- */
- if (machine_is_p720t()) {
- PLD_LCDEN = PLD_LCDEN_EN;
- PLD_PWR |= (PLD_S4_ON|PLD_S3_ON|PLD_S2_ON|PLD_S1_ON);
- }
-
- if (machine_is_edb7211()) {
- /* Power up the LCD panel. */
- clps_writeb(clps_readb(PDDR) | EDB_PD2_LCDEN, PDDR);
-
- /* Delay for a little while. */
- udelay(100);
-
- /* Power up the LCD DC-DC converter. */
- clps_writeb(clps_readb(PDDR) | EDB_PD1_LCD_DC_DC_EN, PDDR);
-
- /* Turn on the LCD backlight. */
- clps_writeb(clps_readb(PDDR) | EDB_PD3_LCDBL, PDDR);
- }
-
err = register_framebuffer(cfb);
out: return err;
}
-static void __exit clps711xfb_exit(void)
+static int __devexit clps711x_fb_remove(struct platform_device *pdev)
{
unregister_framebuffer(cfb);
kfree(cfb);
- /*
- * Power down the LCD
- */
- if (machine_is_p720t()) {
- PLD_LCDEN = 0;
- PLD_PWR &= ~(PLD_S4_ON|PLD_S3_ON|PLD_S2_ON|PLD_S1_ON);
- }
+ return 0;
}
-module_init(clps711xfb_init);
-module_exit(clps711xfb_exit);
+static struct platform_driver clps711x_fb_driver = {
+ .driver = {
+ .name = "video-clps711x",
+ .owner = THIS_MODULE,
+ },
+ .probe = clps711x_fb_probe,
+ .remove = __devexit_p(clps711x_fb_remove),
+};
+module_platform_driver(clps711x_fb_driver);
MODULE_AUTHOR("Russell King <rmk@arm.linux.org.uk>");
-MODULE_DESCRIPTION("CLPS711x framebuffer driver");
+MODULE_DESCRIPTION("CLPS711X framebuffer driver");
MODULE_LICENSE("GPL");