summaryrefslogtreecommitdiffstats
path: root/arch/arm/mach-bcm2835
diff options
context:
space:
mode:
authorMarkus Mayer <markus.mayer@linaro.org>2014-02-20 16:16:11 -0800
committerStephen Warren <swarren@wwwdotorg.org>2014-02-24 19:42:35 -0700
commitd30fe6272183f3cc8b9f3f111cd36271332e4cec (patch)
treeb687736f4e0c2fc441c40db4dc917c7b1e47730c /arch/arm/mach-bcm2835
parent38dbfb59d1175ef458d006556061adeaa8751b72 (diff)
ARM: bcm2835: Move to mach-bcm directory
Move the bcm2835 board file into the mach-bcm directory. This allows us to get rid of the mach-bcm2835 directory with the associated Kconfig and Makefile. Signed-off-by: Markus Mayer <markus.mayer@linaro.org> [swarren, adjust defconfig so ARCH_BCM2835 still gets enabled] Signed-off-by: Stephen Warren <swarren@wwwdotorg.org>
Diffstat (limited to 'arch/arm/mach-bcm2835')
-rw-r--r--arch/arm/mach-bcm2835/Kconfig15
-rw-r--r--arch/arm/mach-bcm2835/Makefile1
-rw-r--r--arch/arm/mach-bcm2835/bcm2835.c137
3 files changed, 0 insertions, 153 deletions
diff --git a/arch/arm/mach-bcm2835/Kconfig b/arch/arm/mach-bcm2835/Kconfig
deleted file mode 100644
index d1f9612f8c1..00000000000
--- a/arch/arm/mach-bcm2835/Kconfig
+++ /dev/null
@@ -1,15 +0,0 @@
-config ARCH_BCM2835
- bool "Broadcom BCM2835 family" if ARCH_MULTI_V6
- select ARCH_REQUIRE_GPIOLIB
- select ARM_AMBA
- select ARM_ERRATA_411920
- select ARM_TIMER_SP804
- select CLKDEV_LOOKUP
- select CLKSRC_OF
- select CPU_V6
- select GENERIC_CLOCKEVENTS
- select PINCTRL
- select PINCTRL_BCM2835
- help
- This enables support for the Broadcom BCM2835 SoC. This SoC is
- used in the Raspberry Pi and Roku 2 devices.
diff --git a/arch/arm/mach-bcm2835/Makefile b/arch/arm/mach-bcm2835/Makefile
deleted file mode 100644
index 4c3892fe02c..00000000000
--- a/arch/arm/mach-bcm2835/Makefile
+++ /dev/null
@@ -1 +0,0 @@
-obj-y += bcm2835.o
diff --git a/arch/arm/mach-bcm2835/bcm2835.c b/arch/arm/mach-bcm2835/bcm2835.c
deleted file mode 100644
index 70f2f3925f0..00000000000
--- a/arch/arm/mach-bcm2835/bcm2835.c
+++ /dev/null
@@ -1,137 +0,0 @@
-/*
- * Copyright (C) 2010 Broadcom
- *
- * 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/delay.h>
-#include <linux/init.h>
-#include <linux/irqchip.h>
-#include <linux/of_address.h>
-#include <linux/of_platform.h>
-#include <linux/clk/bcm2835.h>
-
-#include <asm/mach/arch.h>
-#include <asm/mach/map.h>
-
-#define PM_RSTC 0x1c
-#define PM_RSTS 0x20
-#define PM_WDOG 0x24
-
-#define PM_PASSWORD 0x5a000000
-#define PM_RSTC_WRCFG_MASK 0x00000030
-#define PM_RSTC_WRCFG_FULL_RESET 0x00000020
-#define PM_RSTS_HADWRH_SET 0x00000040
-
-#define BCM2835_PERIPH_PHYS 0x20000000
-#define BCM2835_PERIPH_VIRT 0xf0000000
-#define BCM2835_PERIPH_SIZE SZ_16M
-
-static void __iomem *wdt_regs;
-
-/*
- * The machine restart method can be called from an atomic context so we won't
- * be able to ioremap the regs then.
- */
-static void bcm2835_setup_restart(void)
-{
- struct device_node *np = of_find_compatible_node(NULL, NULL,
- "brcm,bcm2835-pm-wdt");
- if (WARN(!np, "unable to setup watchdog restart"))
- return;
-
- wdt_regs = of_iomap(np, 0);
- WARN(!wdt_regs, "failed to remap watchdog regs");
-}
-
-static void bcm2835_restart(enum reboot_mode mode, const char *cmd)
-{
- u32 val;
-
- if (!wdt_regs)
- return;
-
- /* use a timeout of 10 ticks (~150us) */
- writel_relaxed(10 | PM_PASSWORD, wdt_regs + PM_WDOG);
- val = readl_relaxed(wdt_regs + PM_RSTC);
- val &= ~PM_RSTC_WRCFG_MASK;
- val |= PM_PASSWORD | PM_RSTC_WRCFG_FULL_RESET;
- writel_relaxed(val, wdt_regs + PM_RSTC);
-
- /* No sleeping, possibly atomic. */
- mdelay(1);
-}
-
-/*
- * We can't really power off, but if we do the normal reset scheme, and
- * indicate to bootcode.bin not to reboot, then most of the chip will be
- * powered off.
- */
-static void bcm2835_power_off(void)
-{
- u32 val;
-
- /*
- * We set the watchdog hard reset bit here to distinguish this reset
- * from the normal (full) reset. bootcode.bin will not reboot after a
- * hard reset.
- */
- val = readl_relaxed(wdt_regs + PM_RSTS);
- val &= ~PM_RSTC_WRCFG_MASK;
- val |= PM_PASSWORD | PM_RSTS_HADWRH_SET;
- writel_relaxed(val, wdt_regs + PM_RSTS);
-
- /* Continue with normal reset mechanism */
- bcm2835_restart(REBOOT_HARD, "");
-}
-
-static struct map_desc io_map __initdata = {
- .virtual = BCM2835_PERIPH_VIRT,
- .pfn = __phys_to_pfn(BCM2835_PERIPH_PHYS),
- .length = BCM2835_PERIPH_SIZE,
- .type = MT_DEVICE
-};
-
-static void __init bcm2835_map_io(void)
-{
- iotable_init(&io_map, 1);
-}
-
-static void __init bcm2835_init(void)
-{
- int ret;
-
- bcm2835_setup_restart();
- if (wdt_regs)
- pm_power_off = bcm2835_power_off;
-
- bcm2835_init_clocks();
-
- ret = of_platform_populate(NULL, of_default_bus_match_table, NULL,
- NULL);
- if (ret) {
- pr_err("of_platform_populate failed: %d\n", ret);
- BUG();
- }
-}
-
-static const char * const bcm2835_compat[] = {
- "brcm,bcm2835",
- NULL
-};
-
-DT_MACHINE_START(BCM2835, "BCM2835")
- .map_io = bcm2835_map_io,
- .init_irq = irqchip_init,
- .init_machine = bcm2835_init,
- .restart = bcm2835_restart,
- .dt_compat = bcm2835_compat
-MACHINE_END