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authorLinus Torvalds <torvalds@linux-foundation.org>2013-11-11 16:49:45 +0900
committerLinus Torvalds <torvalds@linux-foundation.org>2013-11-11 16:49:45 +0900
commitaac59e3efce3dca787b11e34726001603ce3d161 (patch)
tree855d3f967b102877a179e23382be3c2c7fc8d66c /drivers
parent21604cdcdcf9ea8c16b1656f78e2eff097244d66 (diff)
parent005ff5fb077ebf93882bd643932f932a9b402529 (diff)
downloadlinux-aac59e3efce3dca787b11e34726001603ce3d161.tar.bz2
Merge tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC platform changes from Olof Johansson: "New and updated SoC support. Among the things new for this release are: - More support for the AM33xx platforms from TI - Tegra 124 support, and some updates to older tegra families as well - imx cleanups and updates across the board - A rename of Broadcom's Mobile platforms which were introduced as ARCH_BCM, and turned out to be too broad a name. New name is ARCH_BCM_MOBILE. - A whole bunch of updates and fixes for integrator, making the platform code more modern and switches over to DT-only booting. - Support for two new Renesas shmobile chipsets. Next up for them is more work on consolidation instead of introduction of new non-multiplatform SoCs, we're all looking forward to that! - Misc cleanups for older Samsung platforms, some Allwinner updates, etc" * tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (159 commits) ARM: bcm281xx: Add ARCH_BCM_MOBILE to bcm config ARM: bcm_defconfig: Run "make savedefconfig" ARM: bcm281xx: Add ARCH Timers to config rename ARCH_BCM to ARCH_BCM_MOBILE (mach-bcm) ARM: vexpress: Enable platform-specific options in defconfig ARM: vexpress: Make defconfig work again ARM: sunxi: remove .init_time hooks ARM: imx: enable suspend for imx6sl ARM: imx: ensure dsm_request signal is not asserted when setting LPM ARM: imx6q: call WB and RBC configuration from imx6q_pm_enter() ARM: imx6q: move low-power code out of clock driver ARM: imx: drop extern with function prototypes in common.h ARM: imx: reset core along with enable/disable operation ARM: imx: do not return from imx_cpu_die() call ARM: imx_v6_v7_defconfig: Select CONFIG_PROVE_LOCKING ARM: imx_v6_v7_defconfig: Enable LEDS_GPIO related options ARM: mxs_defconfig: Turn off CONFIG_DEBUG_GPIO ARM: imx: replace imx6q_restart() with mxc_restart() ARM: mach-imx: mm-imx5: Retrieve iomuxc base address from dt ARM: mach-imx: mm-imx5: Retrieve tzic base address from dt ...
Diffstat (limited to 'drivers')
-rw-r--r--drivers/clk/samsung/Makefile2
-rw-r--r--drivers/cpufreq/integrator-cpufreq.c61
-rw-r--r--drivers/cpuidle/Kconfig.arm2
-rw-r--r--drivers/cpuidle/cpuidle-calxeda.c61
-rw-r--r--drivers/dma/Kconfig2
-rw-r--r--drivers/usb/host/ohci-s3c2410.c8
6 files changed, 71 insertions, 65 deletions
diff --git a/drivers/clk/samsung/Makefile b/drivers/clk/samsung/Makefile
index 3413380086d5..8eb4799237f0 100644
--- a/drivers/clk/samsung/Makefile
+++ b/drivers/clk/samsung/Makefile
@@ -8,6 +8,4 @@ obj-$(CONFIG_SOC_EXYNOS5250) += clk-exynos5250.o
obj-$(CONFIG_SOC_EXYNOS5420) += clk-exynos5420.o
obj-$(CONFIG_SOC_EXYNOS5440) += clk-exynos5440.o
obj-$(CONFIG_ARCH_EXYNOS) += clk-exynos-audss.o
-ifdef CONFIG_COMMON_CLK
obj-$(CONFIG_ARCH_S3C64XX) += clk-s3c64xx.o
-endif
diff --git a/drivers/cpufreq/integrator-cpufreq.c b/drivers/cpufreq/integrator-cpufreq.c
index f7c99df0880b..3d79bca47433 100644
--- a/drivers/cpufreq/integrator-cpufreq.c
+++ b/drivers/cpufreq/integrator-cpufreq.c
@@ -15,18 +15,19 @@
#include <linux/smp.h>
#include <linux/init.h>
#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
-#include <mach/hardware.h>
-#include <mach/platform.h>
#include <asm/mach-types.h>
#include <asm/hardware/icst.h>
-static struct cpufreq_driver integrator_driver;
+static void __iomem *cm_base;
+/* The cpufreq driver only use the OSC register */
+#define INTEGRATOR_HDR_OSC_OFFSET 0x08
+#define INTEGRATOR_HDR_LOCK_OFFSET 0x14
-#define CM_ID __io_address(INTEGRATOR_HDR_ID)
-#define CM_OSC __io_address(INTEGRATOR_HDR_OSC)
-#define CM_STAT __io_address(INTEGRATOR_HDR_STAT)
-#define CM_LOCK __io_address(INTEGRATOR_HDR_LOCK)
+static struct cpufreq_driver integrator_driver;
static const struct icst_params lclk_params = {
.ref = 24000000,
@@ -100,7 +101,7 @@ static int integrator_set_target(struct cpufreq_policy *policy,
BUG_ON(cpu != smp_processor_id());
/* get current setting */
- cm_osc = __raw_readl(CM_OSC);
+ cm_osc = __raw_readl(cm_base + INTEGRATOR_HDR_OSC_OFFSET);
if (machine_is_integrator()) {
vco.s = (cm_osc >> 8) & 7;
@@ -128,7 +129,7 @@ static int integrator_set_target(struct cpufreq_policy *policy,
cpufreq_notify_transition(policy, &freqs, CPUFREQ_PRECHANGE);
- cm_osc = __raw_readl(CM_OSC);
+ cm_osc = __raw_readl(cm_base + INTEGRATOR_HDR_OSC_OFFSET);
if (machine_is_integrator()) {
cm_osc &= 0xfffff800;
@@ -138,9 +139,9 @@ static int integrator_set_target(struct cpufreq_policy *policy,
}
cm_osc |= vco.v;
- __raw_writel(0xa05f, CM_LOCK);
- __raw_writel(cm_osc, CM_OSC);
- __raw_writel(0, CM_LOCK);
+ __raw_writel(0xa05f, cm_base + INTEGRATOR_HDR_LOCK_OFFSET);
+ __raw_writel(cm_osc, cm_base + INTEGRATOR_HDR_OSC_OFFSET);
+ __raw_writel(0, cm_base + INTEGRATOR_HDR_LOCK_OFFSET);
/*
* Restore the CPUs allowed mask.
@@ -165,7 +166,7 @@ static unsigned int integrator_get(unsigned int cpu)
BUG_ON(cpu != smp_processor_id());
/* detect memory etc. */
- cm_osc = __raw_readl(CM_OSC);
+ cm_osc = __raw_readl(cm_base + INTEGRATOR_HDR_OSC_OFFSET);
if (machine_is_integrator()) {
vco.s = (cm_osc >> 8) & 7;
@@ -202,19 +203,43 @@ static struct cpufreq_driver integrator_driver = {
.name = "integrator",
};
-static int __init integrator_cpu_init(void)
+static int __init integrator_cpufreq_probe(struct platform_device *pdev)
{
+ struct resource *res;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -ENODEV;
+
+ cm_base = devm_ioremap(&pdev->dev, res->start, resource_size(res));
+ if (!cm_base)
+ return -ENODEV;
+
return cpufreq_register_driver(&integrator_driver);
}
-static void __exit integrator_cpu_exit(void)
+static void __exit integrator_cpufreq_remove(struct platform_device *pdev)
{
cpufreq_unregister_driver(&integrator_driver);
}
+static const struct of_device_id integrator_cpufreq_match[] = {
+ { .compatible = "arm,core-module-integrator"},
+ { },
+};
+
+static struct platform_driver integrator_cpufreq_driver = {
+ .driver = {
+ .name = "integrator-cpufreq",
+ .owner = THIS_MODULE,
+ .of_match_table = integrator_cpufreq_match,
+ },
+ .remove = __exit_p(integrator_cpufreq_remove),
+};
+
+module_platform_driver_probe(integrator_cpufreq_driver,
+ integrator_cpufreq_probe);
+
MODULE_AUTHOR ("Russell M. King");
MODULE_DESCRIPTION ("cpufreq driver for ARM Integrator CPUs");
MODULE_LICENSE ("GPL");
-
-module_init(integrator_cpu_init);
-module_exit(integrator_cpu_exit);
diff --git a/drivers/cpuidle/Kconfig.arm b/drivers/cpuidle/Kconfig.arm
index 8e3660322308..d6f57d5d9631 100644
--- a/drivers/cpuidle/Kconfig.arm
+++ b/drivers/cpuidle/Kconfig.arm
@@ -4,7 +4,7 @@
config ARM_HIGHBANK_CPUIDLE
bool "CPU Idle Driver for Calxeda processors"
- depends on ARCH_HIGHBANK
+ depends on ARM_PSCI
select ARM_CPU_SUSPEND
help
Select this to enable cpuidle on Calxeda processors.
diff --git a/drivers/cpuidle/cpuidle-calxeda.c b/drivers/cpuidle/cpuidle-calxeda.c
index 346058479572..36795639df0d 100644
--- a/drivers/cpuidle/cpuidle-calxeda.c
+++ b/drivers/cpuidle/cpuidle-calxeda.c
@@ -21,53 +21,30 @@
*/
#include <linux/cpuidle.h>
+#include <linux/cpu_pm.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 <linux/mm.h>
+#include <linux/platform_device.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 __iomem *scu_base_addr;
-
-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);
-}
+#include <asm/psci.h>
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;
+ const struct psci_power_state ps = {
+ .type = PSCI_POWER_STATE_TYPE_POWER_DOWN,
+ };
+ return psci_ops.cpu_suspend(ps, __pa(cpu_resume));
}
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_pm_enter();
cpu_suspend(0, calxeda_idle_finish);
+ cpu_pm_exit();
+
return index;
}
@@ -88,11 +65,17 @@ static struct cpuidle_driver calxeda_idle_driver = {
.state_count = 2,
};
-static int __init calxeda_cpuidle_init(void)
+static int __init calxeda_cpuidle_probe(struct platform_device *pdev)
{
- if (!of_machine_is_compatible("calxeda,highbank"))
- return -ENODEV;
-
return cpuidle_register(&calxeda_idle_driver, NULL);
}
-module_init(calxeda_cpuidle_init);
+
+static struct platform_driver calxeda_cpuidle_plat_driver = {
+ .driver = {
+ .name = "cpuidle-calxeda",
+ .owner = THIS_MODULE,
+ },
+ .probe = calxeda_cpuidle_probe,
+};
+
+module_platform_driver(calxeda_cpuidle_plat_driver);
diff --git a/drivers/dma/Kconfig b/drivers/dma/Kconfig
index f238cfd33847..56fe803adcb1 100644
--- a/drivers/dma/Kconfig
+++ b/drivers/dma/Kconfig
@@ -195,7 +195,7 @@ config SIRF_DMA
config TI_EDMA
bool "TI EDMA support"
- depends on ARCH_DAVINCI || ARCH_OMAP
+ depends on ARCH_DAVINCI || ARCH_OMAP || ARCH_KEYSTONE
select DMA_ENGINE
select DMA_VIRTUAL_CHANNELS
select TI_PRIV_EDMA
diff --git a/drivers/usb/host/ohci-s3c2410.c b/drivers/usb/host/ohci-s3c2410.c
index be3429e08d90..f90101b9cdb9 100644
--- a/drivers/usb/host/ohci-s3c2410.c
+++ b/drivers/usb/host/ohci-s3c2410.c
@@ -64,10 +64,10 @@ static void s3c2410_start_hc(struct platform_device *dev, struct usb_hcd *hcd)
dev_dbg(&dev->dev, "s3c2410_start_hc:\n");
- clk_enable(usb_clk);
+ clk_prepare_enable(usb_clk);
mdelay(2); /* let the bus clock stabilise */
- clk_enable(clk);
+ clk_prepare_enable(clk);
if (info != NULL) {
info->hcd = hcd;
@@ -92,8 +92,8 @@ static void s3c2410_stop_hc(struct platform_device *dev)
(info->enable_oc)(info, 0);
}
- clk_disable(clk);
- clk_disable(usb_clk);
+ clk_disable_unprepare(clk);
+ clk_disable_unprepare(usb_clk);
}
/* ohci_s3c2410_hub_status_data