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ARM: SoC platform changes for 3.19

Browse source 
New and updated SoC support, notable changes include:
 
 * bcm: brcmstb SMP support
 * bcm: initial iproc/cygnus support
 * exynos: Exynos4415 SoC support
 * exynos: PMU and suspend support for Exynos5420
 * exynos: PMU support for Exynos3250
 * exynos: pm related maintenance
 * imx: new LS1021A SoC support
 * imx: vybrid 610 global timer support
 * integrator: convert to using multiplatform configuration
 * mediatek: earlyprintk support for mt8127/mt8135
 * meson: meson8 soc and l2 cache controller support
 * mvebu: Armada 38x CPU hotplug support
 * mvebu: drop support for prerelease Armada 375 Z1 stepping
 * mvebu: extended suspend support, now works on Armada 370/XP
 * omap: hwmod related maintenance
 * omap: prcm cleanup
 * pxa: initial pxa27x DT handling
 * rockchip: SMP support for rk3288
 * rockchip: add cpu frequency scaling support
 * shmobile: r8a7740 power domain support
 * shmobile: various small restart, timer, pci apmu changes
 * sunxi: Allwinner A80 (sun9i) earlyprintk support
 * ux500: power domain support
 
 Overall, a significant chunk of changes, coming mostly from
 the usual suspects: omap, shmobile, samsung and mvebu, all of
 which already contain a lot of platform specific code in
 arch/arm.
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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 Arnd Bergmann:
 "New and updated SoC support, notable changes include:

   - bcm:
        brcmstb SMP support
        initial iproc/cygnus support
   - exynos:
        Exynos4415 SoC support
        PMU and suspend support for Exynos5420
        PMU support for Exynos3250
        pm related maintenance
   - imx:
        new LS1021A SoC support
        vybrid 610 global timer support
   - integrator:
        convert to using multiplatform configuration
   - mediatek:
        earlyprintk support for mt8127/mt8135
   - meson:
        meson8 soc and l2 cache controller support
   - mvebu:
        Armada 38x CPU hotplug support
        drop support for prerelease Armada 375 Z1 stepping
        extended suspend support, now works on Armada 370/XP
   - omap:
        hwmod related maintenance
        prcm cleanup
   - pxa:
        initial pxa27x DT handling
   - rockchip:
        SMP support for rk3288
        add cpu frequency scaling support
   - shmobile:
        r8a7740 power domain support
        various small restart, timer, pci apmu changes
   - sunxi:
        Allwinner A80 (sun9i) earlyprintk support
   - ux500:
        power domain support

  Overall, a significant chunk of changes, coming mostly from the usual
  suspects: omap, shmobile, samsung and mvebu, all of which already
  contain a lot of platform specific code in arch/arm"

* tag 'soc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (187 commits)
  ARM: mvebu: use the cpufreq-dt platform_data for independent clocks
  soc: integrator: Add terminating entry for integrator_cm_match
  ARM: mvebu: add SDRAM controller description for Armada XP
  ARM: mvebu: adjust mbus controller description on Armada 370/XP
  ARM: mvebu: add suspend/resume DT information for Armada XP GP
  ARM: mvebu: synchronize secondary CPU clocks on resume
  ARM: mvebu: make sure MMU is disabled in armada_370_xp_cpu_resume
  ARM: mvebu: Armada XP GP specific suspend/resume code
  ARM: mvebu: reserve the first 10 KB of each memory bank for suspend/resume
  ARM: mvebu: implement suspend/resume support for Armada XP
  clk: mvebu: add suspend/resume for gatable clocks
  bus: mvebu-mbus: provide a mechanism to save SDRAM window configuration
  bus: mvebu-mbus: suspend/resume support
  clocksource: time-armada-370-xp: add suspend/resume support
  irqchip: armada-370-xp: Add suspend/resume support
  ARM: add lolevel debug support for asm9260
  ARM: add mach-asm9260
  ARM: EXYNOS: use u8 for val[] in struct exynos_pmu_conf
  power: reset: imx-snvs-poweroff: add power off driver for i.mx6
  ARM: imx: temporarily remove CONFIG_SOC_FSL from LS1021A
  ...
This commit is contained in:
Linus Torvalds 2014-12-09 14:38:28 -08:00
commit 6cd94d5e57
214 changed files with 6329 additions and 2353 deletions
Download patch file Download diff file Expand all files Collapse all files

9
drivers/soc/versatile/Kconfig
View file

@ -1,6 +1,15 @@
#
# ARM Versatile SoC drivers
#
config SOC_INTEGRATOR_CM
bool "SoC bus device for the ARM Integrator platform core modules"
depends on ARCH_INTEGRATOR
select SOC_BUS
help
Include support for the SoC bus on the ARM Integrator platform
core modules providing some sysfs information about the ASIC
variant.
config SOC_REALVIEW
bool "SoC bus device for the ARM RealView platforms"
depends on ARCH_REALVIEW

1
drivers/soc/versatile/Makefile
View file

@ -1 +1,2 @@
obj-$(CONFIG_SOC_INTEGRATOR_CM) += soc-integrator.o
obj-$(CONFIG_SOC_REALVIEW) += soc-realview.o

155
drivers/soc/versatile/soc-integrator.c Normal file
View file

@ -0,0 +1,155 @@
/*
* Copyright (C) 2014 Linaro Ltd.
*
* Author: Linus Walleij <linus.walleij@linaro.org>
*
* 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.
*
*/
#include <linux/init.h>
#include <linux/io.h>
#include <linux/slab.h>
#include <linux/sys_soc.h>
#include <linux/platform_device.h>
#include <linux/mfd/syscon.h>
#include <linux/regmap.h>
#include <linux/of.h>
#define INTEGRATOR_HDR_ID_OFFSET 0x00
static u32 integrator_coreid;
static const struct of_device_id integrator_cm_match[] = {
{ .compatible = "arm,core-module-integrator", },
{ }
};
static const char *integrator_arch_str(u32 id)
{
switch ((id >> 16) & 0xff) {
case 0x00:
return "ASB little-endian";
case 0x01:
return "AHB little-endian";
case 0x03:
return "AHB-Lite system bus, bi-endian";
case 0x04:
return "AHB";
case 0x08:
return "AHB system bus, ASB processor bus";
default:
return "Unknown";
}
}
static const char *integrator_fpga_str(u32 id)
{
switch ((id >> 12) & 0xf) {
case 0x01:
return "XC4062";
case 0x02:
return "XC4085";
case 0x03:
return "XVC600";
case 0x04:
return "EPM7256AE (Altera PLD)";
default:
return "Unknown";
}
}
static ssize_t integrator_get_manf(struct device *dev,
struct device_attribute *attr,
char *buf)
{
return sprintf(buf, "%02x\n", integrator_coreid >> 24);
}
static struct device_attribute integrator_manf_attr =
__ATTR(manufacturer, S_IRUGO, integrator_get_manf, NULL);
static ssize_t integrator_get_arch(struct device *dev,
struct device_attribute *attr,
char *buf)
{
return sprintf(buf, "%s\n", integrator_arch_str(integrator_coreid));
}
static struct device_attribute integrator_arch_attr =
__ATTR(arch, S_IRUGO, integrator_get_arch, NULL);
static ssize_t integrator_get_fpga(struct device *dev,
struct device_attribute *attr,
char *buf)
{
return sprintf(buf, "%s\n", integrator_fpga_str(integrator_coreid));
}
static struct device_attribute integrator_fpga_attr =
__ATTR(fpga, S_IRUGO, integrator_get_fpga, NULL);
static ssize_t integrator_get_build(struct device *dev,
struct device_attribute *attr,
char *buf)
{
return sprintf(buf, "%02x\n", (integrator_coreid >> 4) & 0xFF);
}
static struct device_attribute integrator_build_attr =
__ATTR(build, S_IRUGO, integrator_get_build, NULL);
static int __init integrator_soc_init(void)
{
static struct regmap *syscon_regmap;
struct soc_device *soc_dev;
struct soc_device_attribute *soc_dev_attr;
struct device_node *np;
struct device *dev;
u32 val;
int ret;
np = of_find_matching_node(NULL, integrator_cm_match);
if (!np)
return -ENODEV;
syscon_regmap = syscon_node_to_regmap(np);
if (IS_ERR(syscon_regmap))
return PTR_ERR(syscon_regmap);
ret = regmap_read(syscon_regmap, INTEGRATOR_HDR_ID_OFFSET,
&val);
if (ret)
return -ENODEV;
integrator_coreid = val;
soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL);
if (!soc_dev_attr)
return -ENOMEM;
soc_dev_attr->soc_id = "Integrator";
soc_dev_attr->machine = "Integrator";
soc_dev_attr->family = "Versatile";
soc_dev = soc_device_register(soc_dev_attr);
if (IS_ERR(soc_dev)) {
kfree(soc_dev_attr);
return -ENODEV;
}
dev = soc_device_to_device(soc_dev);
device_create_file(dev, &integrator_manf_attr);
device_create_file(dev, &integrator_arch_attr);
device_create_file(dev, &integrator_fpga_attr);
device_create_file(dev, &integrator_build_attr);
dev_info(dev, "Detected ARM core module:\n");
dev_info(dev, " Manufacturer: %02x\n", (val >> 24));
dev_info(dev, " Architecture: %s\n", integrator_arch_str(val));
dev_info(dev, " FPGA: %s\n", integrator_fpga_str(val));
dev_info(dev, " Build: %02x\n", (val >> 4) & 0xFF);
dev_info(dev, " Rev: %c\n", ('A' + (val & 0x03)));
return 0;
}
device_initcall(integrator_soc_init);