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authorRafael J. Wysocki <rjw@sisk.pl>2012-07-06 20:42:44 +0200
committerRafael J. Wysocki <rjw@sisk.pl>2012-07-06 20:42:44 +0200
commit93bcfdc56522a88b440cf6c4fee09e9ecf6605da (patch)
tree0dc1088d755b6efd3d663e4ff4eb9b05d3ff7861 /arch/arm/mach-shmobile
parentf65ad7e36cbae24f05ea2314ad63e9dd23294c60 (diff)
parenta330ce3cdaba5202051edf8ae69482e15fdc9db5 (diff)
Merge branch 'renesas-r8a7740' into renesas-armadillo
* renesas-r8a7740: ARM: shmobile: r8a7740: add A4LC pm domain support ARM: shmobile: r8a7740: add A3SP pm domain support ARM: shmobile: r8a7740: add A4S pm domain support ARM: shmobile: r8a7740: fixup: MSEL1CR 7bit control ARM: shmobile: soc-core: add R-mobile PM domain common APIs ARM: mach-shmobile: Convert sh_clk_mstp32_register to sh_clk_mstp_register
Diffstat (limited to 'arch/arm/mach-shmobile')
-rw-r--r--arch/arm/mach-shmobile/Makefile2
-rw-r--r--arch/arm/mach-shmobile/clock-r8a7740.c2
-rw-r--r--arch/arm/mach-shmobile/clock-r8a7779.c2
-rw-r--r--arch/arm/mach-shmobile/clock-sh7367.c2
-rw-r--r--arch/arm/mach-shmobile/clock-sh7372.c2
-rw-r--r--arch/arm/mach-shmobile/clock-sh7377.c2
-rw-r--r--arch/arm/mach-shmobile/clock-sh73a0.c2
-rw-r--r--arch/arm/mach-shmobile/include/mach/pm-rmobile.h44
-rw-r--r--arch/arm/mach-shmobile/include/mach/r8a7740.h8
-rw-r--r--arch/arm/mach-shmobile/pfc-r8a7740.c4
-rw-r--r--arch/arm/mach-shmobile/pm-r8a7740.c54
-rw-r--r--arch/arm/mach-shmobile/pm-rmobile.c167
-rw-r--r--arch/arm/mach-shmobile/setup-r8a7740.c22
13 files changed, 305 insertions, 8 deletions
diff --git a/arch/arm/mach-shmobile/Makefile b/arch/arm/mach-shmobile/Makefile
index 8aa1962c22a..0df5ae6740c 100644
--- a/arch/arm/mach-shmobile/Makefile
+++ b/arch/arm/mach-shmobile/Makefile
@@ -39,7 +39,9 @@ obj-$(CONFIG_ARCH_R8A7740) += entry-intc.o
# PM objects
obj-$(CONFIG_SUSPEND) += suspend.o
obj-$(CONFIG_CPU_IDLE) += cpuidle.o
+obj-$(CONFIG_ARCH_SHMOBILE) += pm-rmobile.o
obj-$(CONFIG_ARCH_SH7372) += pm-sh7372.o sleep-sh7372.o
+obj-$(CONFIG_ARCH_R8A7740) += pm-r8a7740.o
obj-$(CONFIG_ARCH_R8A7779) += pm-r8a7779.o
# Board objects
diff --git a/arch/arm/mach-shmobile/clock-r8a7740.c b/arch/arm/mach-shmobile/clock-r8a7740.c
index daf3eace5dc..ad5fccc7b5e 100644
--- a/arch/arm/mach-shmobile/clock-r8a7740.c
+++ b/arch/arm/mach-shmobile/clock-r8a7740.c
@@ -636,7 +636,7 @@ void __init r8a7740_clock_init(u8 md_ck)
DIV6_REPARENT_NR);
if (!ret)
- ret = sh_clk_mstp32_register(mstp_clks, MSTP_NR);
+ ret = sh_clk_mstp_register(mstp_clks, MSTP_NR);
for (k = 0; !ret && (k < ARRAY_SIZE(late_main_clks)); k++)
ret = clk_register(late_main_clks[k]);
diff --git a/arch/arm/mach-shmobile/clock-r8a7779.c b/arch/arm/mach-shmobile/clock-r8a7779.c
index 7d6e9fe47b5..339c62c824d 100644
--- a/arch/arm/mach-shmobile/clock-r8a7779.c
+++ b/arch/arm/mach-shmobile/clock-r8a7779.c
@@ -162,7 +162,7 @@ void __init r8a7779_clock_init(void)
ret = sh_clk_div4_register(div4_clks, DIV4_NR, &div4_table);
if (!ret)
- ret = sh_clk_mstp32_register(mstp_clks, MSTP_NR);
+ ret = sh_clk_mstp_register(mstp_clks, MSTP_NR);
for (k = 0; !ret && (k < ARRAY_SIZE(late_main_clks)); k++)
ret = clk_register(late_main_clks[k]);
diff --git a/arch/arm/mach-shmobile/clock-sh7367.c b/arch/arm/mach-shmobile/clock-sh7367.c
index 006e7b5d304..162b791b898 100644
--- a/arch/arm/mach-shmobile/clock-sh7367.c
+++ b/arch/arm/mach-shmobile/clock-sh7367.c
@@ -344,7 +344,7 @@ void __init sh7367_clock_init(void)
ret = sh_clk_div6_register(div6_clks, DIV6_NR);
if (!ret)
- ret = sh_clk_mstp32_register(mstp_clks, MSTP_NR);
+ ret = sh_clk_mstp_register(mstp_clks, MSTP_NR);
clkdev_add_table(lookups, ARRAY_SIZE(lookups));
diff --git a/arch/arm/mach-shmobile/clock-sh7372.c b/arch/arm/mach-shmobile/clock-sh7372.c
index 94d1f88246d..5a2894b1c96 100644
--- a/arch/arm/mach-shmobile/clock-sh7372.c
+++ b/arch/arm/mach-shmobile/clock-sh7372.c
@@ -704,7 +704,7 @@ void __init sh7372_clock_init(void)
ret = sh_clk_div6_reparent_register(div6_reparent_clks, DIV6_REPARENT_NR);
if (!ret)
- ret = sh_clk_mstp32_register(mstp_clks, MSTP_NR);
+ ret = sh_clk_mstp_register(mstp_clks, MSTP_NR);
for (k = 0; !ret && (k < ARRAY_SIZE(late_main_clks)); k++)
ret = clk_register(late_main_clks[k]);
diff --git a/arch/arm/mach-shmobile/clock-sh7377.c b/arch/arm/mach-shmobile/clock-sh7377.c
index 0798a15936c..85f2a3ec2c4 100644
--- a/arch/arm/mach-shmobile/clock-sh7377.c
+++ b/arch/arm/mach-shmobile/clock-sh7377.c
@@ -355,7 +355,7 @@ void __init sh7377_clock_init(void)
ret = sh_clk_div6_register(div6_clks, DIV6_NR);
if (!ret)
- ret = sh_clk_mstp32_register(mstp_clks, MSTP_NR);
+ ret = sh_clk_mstp_register(mstp_clks, MSTP_NR);
clkdev_add_table(lookups, ARRAY_SIZE(lookups));
diff --git a/arch/arm/mach-shmobile/clock-sh73a0.c b/arch/arm/mach-shmobile/clock-sh73a0.c
index 3946c4ba2aa..948bb3435f7 100644
--- a/arch/arm/mach-shmobile/clock-sh73a0.c
+++ b/arch/arm/mach-shmobile/clock-sh73a0.c
@@ -612,7 +612,7 @@ void __init sh73a0_clock_init(void)
ret = sh_clk_div6_reparent_register(div6_clks, DIV6_NR);
if (!ret)
- ret = sh_clk_mstp32_register(mstp_clks, MSTP_NR);
+ ret = sh_clk_mstp_register(mstp_clks, MSTP_NR);
for (k = 0; !ret && (k < ARRAY_SIZE(late_main_clks)); k++)
ret = clk_register(late_main_clks[k]);
diff --git a/arch/arm/mach-shmobile/include/mach/pm-rmobile.h b/arch/arm/mach-shmobile/include/mach/pm-rmobile.h
new file mode 100644
index 00000000000..5a402840fe2
--- /dev/null
+++ b/arch/arm/mach-shmobile/include/mach/pm-rmobile.h
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2012 Renesas Solutions Corp.
+ *
+ * Kuninori Morimoto <morimoto.kuninori@renesas.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#ifndef PM_RMOBILE_H
+#define PM_RMOBILE_H
+
+#include <linux/pm_domain.h>
+
+struct platform_device;
+
+struct rmobile_pm_domain {
+ struct generic_pm_domain genpd;
+ struct dev_power_governor *gov;
+ int (*suspend)(void);
+ void (*resume)(void);
+ unsigned int bit_shift;
+ bool no_debug;
+};
+
+static inline
+struct rmobile_pm_domain *to_rmobile_pd(struct generic_pm_domain *d)
+{
+ return container_of(d, struct rmobile_pm_domain, genpd);
+}
+
+#ifdef CONFIG_PM
+extern void rmobile_init_pm_domain(struct rmobile_pm_domain *rmobile_pd);
+extern void rmobile_add_device_to_domain(struct rmobile_pm_domain *rmobile_pd,
+ struct platform_device *pdev);
+extern void rmobile_pm_add_subdomain(struct rmobile_pm_domain *rmobile_pd,
+ struct rmobile_pm_domain *rmobile_sd);
+#else
+#define rmobile_init_pm_domain(pd) do { } while (0)
+#define rmobile_add_device_to_domain(pd, pdev) do { } while (0)
+#define rmobile_pm_add_subdomain(pd, sd) do { } while (0)
+#endif /* CONFIG_PM */
+
+#endif /* PM_RMOBILE_H */
diff --git a/arch/arm/mach-shmobile/include/mach/r8a7740.h b/arch/arm/mach-shmobile/include/mach/r8a7740.h
index 8bd7b9c136a..7143147780d 100644
--- a/arch/arm/mach-shmobile/include/mach/r8a7740.h
+++ b/arch/arm/mach-shmobile/include/mach/r8a7740.h
@@ -19,6 +19,8 @@
#ifndef __ASM_R8A7740_H__
#define __ASM_R8A7740_H__
+#include <mach/pm-rmobile.h>
+
/*
* MD_CKx pin
*/
@@ -604,4 +606,10 @@ enum {
SHDMA_SLAVE_USBHS_RX,
};
+#ifdef CONFIG_PM
+extern struct rmobile_pm_domain r8a7740_pd_a4s;
+extern struct rmobile_pm_domain r8a7740_pd_a3sp;
+extern struct rmobile_pm_domain r8a7740_pd_a4lc;
+#endif /* CONFIG_PM */
+
#endif /* __ASM_R8A7740_H__ */
diff --git a/arch/arm/mach-shmobile/pfc-r8a7740.c b/arch/arm/mach-shmobile/pfc-r8a7740.c
index 03def0fd7a0..ce9e7fa5cc8 100644
--- a/arch/arm/mach-shmobile/pfc-r8a7740.c
+++ b/arch/arm/mach-shmobile/pfc-r8a7740.c
@@ -1261,7 +1261,7 @@ static pinmux_enum_t pinmux_data[] = {
PINMUX_DATA(A21_MARK, PORT120_FN1),
PINMUX_DATA(MSIOF0_RSYNC_MARK, PORT120_FN2),
PINMUX_DATA(MSIOF1_TSYNC_PORT120_MARK, PORT120_FN3, MSEL4CR_10_0),
- PINMUX_DATA(IRQ7_PORT120_MARK, PORT120_FN0, MSEL1CR_7_0),
+ PINMUX_DATA(IRQ7_PORT120_MARK, PORT120_FN0, MSEL1CR_7_1),
/* Port121 */
PINMUX_DATA(A20_MARK, PORT121_FN1),
@@ -1623,7 +1623,7 @@ static pinmux_enum_t pinmux_data[] = {
/* Port209 */
PINMUX_DATA(VBUS_MARK, PORT209_FN1),
- PINMUX_DATA(IRQ7_PORT209_MARK, PORT209_FN0, MSEL1CR_7_1),
+ PINMUX_DATA(IRQ7_PORT209_MARK, PORT209_FN0, MSEL1CR_7_0),
/* Port210 */
PINMUX_DATA(IRQ9_PORT210_MARK, PORT210_FN0, MSEL1CR_9_1),
diff --git a/arch/arm/mach-shmobile/pm-r8a7740.c b/arch/arm/mach-shmobile/pm-r8a7740.c
new file mode 100644
index 00000000000..893504d012a
--- /dev/null
+++ b/arch/arm/mach-shmobile/pm-r8a7740.c
@@ -0,0 +1,54 @@
+/*
+ * r8a7740 power management support
+ *
+ * Copyright (C) 2012 Renesas Solutions Corp.
+ * Copyright (C) 2012 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/console.h>
+#include <mach/pm-rmobile.h>
+
+#ifdef CONFIG_PM
+static int r8a7740_pd_a4s_suspend(void)
+{
+ /*
+ * The A4S domain contains the CPU core and therefore it should
+ * only be turned off if the CPU is in use.
+ */
+ return -EBUSY;
+}
+
+struct rmobile_pm_domain r8a7740_pd_a4s = {
+ .genpd.name = "A4S",
+ .bit_shift = 10,
+ .gov = &pm_domain_always_on_gov,
+ .no_debug = true,
+ .suspend = r8a7740_pd_a4s_suspend,
+};
+
+static int r8a7740_pd_a3sp_suspend(void)
+{
+ /*
+ * Serial consoles make use of SCIF hardware located in A3SP,
+ * keep such power domain on if "no_console_suspend" is set.
+ */
+ return console_suspend_enabled ? 0 : -EBUSY;
+}
+
+struct rmobile_pm_domain r8a7740_pd_a3sp = {
+ .genpd.name = "A3SP",
+ .bit_shift = 11,
+ .gov = &pm_domain_always_on_gov,
+ .no_debug = true,
+ .suspend = r8a7740_pd_a3sp_suspend,
+};
+
+struct rmobile_pm_domain r8a7740_pd_a4lc = {
+ .genpd.name = "A4LC",
+ .bit_shift = 1,
+};
+
+#endif /* CONFIG_PM */
diff --git a/arch/arm/mach-shmobile/pm-rmobile.c b/arch/arm/mach-shmobile/pm-rmobile.c
new file mode 100644
index 00000000000..a8562540f1d
--- /dev/null
+++ b/arch/arm/mach-shmobile/pm-rmobile.c
@@ -0,0 +1,167 @@
+/*
+ * rmobile power management support
+ *
+ * Copyright (C) 2012 Renesas Solutions Corp.
+ * Copyright (C) 2012 Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
+ *
+ * based on pm-sh7372.c
+ * Copyright (C) 2011 Magnus Damm
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/console.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
+#include <linux/pm.h>
+#include <linux/pm_clock.h>
+#include <asm/io.h>
+#include <mach/pm-rmobile.h>
+
+/* SYSC */
+#define SPDCR 0xe6180008
+#define SWUCR 0xe6180014
+#define PSTR 0xe6180080
+
+#define PSTR_RETRIES 100
+#define PSTR_DELAY_US 10
+
+#ifdef CONFIG_PM
+static int rmobile_pd_power_down(struct generic_pm_domain *genpd)
+{
+ struct rmobile_pm_domain *rmobile_pd = to_rmobile_pd(genpd);
+ unsigned int mask = 1 << rmobile_pd->bit_shift;
+
+ if (rmobile_pd->suspend) {
+ int ret = rmobile_pd->suspend();
+
+ if (ret)
+ return ret;
+ }
+
+ if (__raw_readl(PSTR) & mask) {
+ unsigned int retry_count;
+ __raw_writel(mask, SPDCR);
+
+ for (retry_count = PSTR_RETRIES; retry_count; retry_count--) {
+ if (!(__raw_readl(SPDCR) & mask))
+ break;
+ cpu_relax();
+ }
+ }
+
+ if (!rmobile_pd->no_debug)
+ pr_debug("%s: Power off, 0x%08x -> PSTR = 0x%08x\n",
+ genpd->name, mask, __raw_readl(PSTR));
+
+ return 0;
+}
+
+static int __rmobile_pd_power_up(struct rmobile_pm_domain *rmobile_pd,
+ bool do_resume)
+{
+ unsigned int mask = 1 << rmobile_pd->bit_shift;
+ unsigned int retry_count;
+ int ret = 0;
+
+ if (__raw_readl(PSTR) & mask)
+ goto out;
+
+ __raw_writel(mask, SWUCR);
+
+ for (retry_count = 2 * PSTR_RETRIES; retry_count; retry_count--) {
+ if (!(__raw_readl(SWUCR) & mask))
+ break;
+ if (retry_count > PSTR_RETRIES)
+ udelay(PSTR_DELAY_US);
+ else
+ cpu_relax();
+ }
+ if (!retry_count)
+ ret = -EIO;
+
+ if (!rmobile_pd->no_debug)
+ pr_debug("%s: Power on, 0x%08x -> PSTR = 0x%08x\n",
+ rmobile_pd->genpd.name, mask, __raw_readl(PSTR));
+
+out:
+ if (ret == 0 && rmobile_pd->resume && do_resume)
+ rmobile_pd->resume();
+
+ return ret;
+}
+
+static int rmobile_pd_power_up(struct generic_pm_domain *genpd)
+{
+ return __rmobile_pd_power_up(to_rmobile_pd(genpd), true);
+}
+
+static bool rmobile_pd_active_wakeup(struct device *dev)
+{
+ bool (*active_wakeup)(struct device *dev);
+
+ active_wakeup = dev_gpd_data(dev)->ops.active_wakeup;
+ return active_wakeup ? active_wakeup(dev) : true;
+}
+
+static int rmobile_pd_stop_dev(struct device *dev)
+{
+ int (*stop)(struct device *dev);
+
+ stop = dev_gpd_data(dev)->ops.stop;
+ if (stop) {
+ int ret = stop(dev);
+ if (ret)
+ return ret;
+ }
+ return pm_clk_suspend(dev);
+}
+
+static int rmobile_pd_start_dev(struct device *dev)
+{
+ int (*start)(struct device *dev);
+ int ret;
+
+ ret = pm_clk_resume(dev);
+ if (ret)
+ return ret;
+
+ start = dev_gpd_data(dev)->ops.start;
+ if (start)
+ ret = start(dev);
+
+ return ret;
+}
+
+void rmobile_init_pm_domain(struct rmobile_pm_domain *rmobile_pd)
+{
+ struct generic_pm_domain *genpd = &rmobile_pd->genpd;
+ struct dev_power_governor *gov = rmobile_pd->gov;
+
+ pm_genpd_init(genpd, gov ? : &simple_qos_governor, false);
+ genpd->dev_ops.stop = rmobile_pd_stop_dev;
+ genpd->dev_ops.start = rmobile_pd_start_dev;
+ genpd->dev_ops.active_wakeup = rmobile_pd_active_wakeup;
+ genpd->dev_irq_safe = true;
+ genpd->power_off = rmobile_pd_power_down;
+ genpd->power_on = rmobile_pd_power_up;
+ __rmobile_pd_power_up(rmobile_pd, false);
+}
+
+void rmobile_add_device_to_domain(struct rmobile_pm_domain *rmobile_pd,
+ struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+
+ pm_genpd_add_device(&rmobile_pd->genpd, dev);
+ if (pm_clk_no_clocks(dev))
+ pm_clk_add(dev, NULL);
+}
+
+void rmobile_pm_add_subdomain(struct rmobile_pm_domain *rmobile_pd,
+ struct rmobile_pm_domain *rmobile_sd)
+{
+ pm_genpd_add_subdomain(&rmobile_pd->genpd, &rmobile_sd->genpd);
+}
+#endif /* CONFIG_PM */
diff --git a/arch/arm/mach-shmobile/setup-r8a7740.c b/arch/arm/mach-shmobile/setup-r8a7740.c
index 48d7bbf0d2e..c006d8ddbbe 100644
--- a/arch/arm/mach-shmobile/setup-r8a7740.c
+++ b/arch/arm/mach-shmobile/setup-r8a7740.c
@@ -29,6 +29,7 @@
#include <linux/dma-mapping.h>
#include <mach/dma-register.h>
#include <mach/r8a7740.h>
+#include <mach/pm-rmobile.h>
#include <mach/common.h>
#include <mach/irqs.h>
#include <asm/mach-types.h>
@@ -671,10 +672,31 @@ void __init r8a7740_add_standard_devices(void)
r8a7740_i2c_workaround(&i2c0_device);
r8a7740_i2c_workaround(&i2c1_device);
+ /* PM domain */
+ rmobile_init_pm_domain(&r8a7740_pd_a4s);
+ rmobile_init_pm_domain(&r8a7740_pd_a3sp);
+ rmobile_init_pm_domain(&r8a7740_pd_a4lc);
+
+ rmobile_pm_add_subdomain(&r8a7740_pd_a4s, &r8a7740_pd_a3sp);
+
+ /* add devices */
platform_add_devices(r8a7740_early_devices,
ARRAY_SIZE(r8a7740_early_devices));
platform_add_devices(r8a7740_late_devices,
ARRAY_SIZE(r8a7740_late_devices));
+
+ /* add devices to PM domain */
+
+ rmobile_add_device_to_domain(&r8a7740_pd_a3sp, &scif0_device);
+ rmobile_add_device_to_domain(&r8a7740_pd_a3sp, &scif1_device);
+ rmobile_add_device_to_domain(&r8a7740_pd_a3sp, &scif2_device);
+ rmobile_add_device_to_domain(&r8a7740_pd_a3sp, &scif3_device);
+ rmobile_add_device_to_domain(&r8a7740_pd_a3sp, &scif4_device);
+ rmobile_add_device_to_domain(&r8a7740_pd_a3sp, &scif5_device);
+ rmobile_add_device_to_domain(&r8a7740_pd_a3sp, &scif6_device);
+ rmobile_add_device_to_domain(&r8a7740_pd_a3sp, &scif7_device);
+ rmobile_add_device_to_domain(&r8a7740_pd_a3sp, &scifb_device);
+ rmobile_add_device_to_domain(&r8a7740_pd_a3sp, &i2c1_device);
}
static void __init r8a7740_earlytimer_init(void)