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ARM: SoC platform changes for 3.13

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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.
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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
  ...
This commit is contained in:
Linus Torvalds 2013-11-11 16:49:45 +09:00
commit aac59e3efc
189 changed files with 8328 additions and 5357 deletions
Download patch file Download diff file Expand all files Collapse all files

61
drivers/cpufreq/integrator-cpufreq.c
View file

@ -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);