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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

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Pull ARM SoC platform support updates from Kevin Hilman:
 "Our SoC branch usually contains expanded support for new SoCs and
  other core platform code.  Some highlights from this round:

   - sunxi: SMP support for A23 SoC
   - socpga: big-endian support
   - pxa: conversion to common clock framework
   - bcm: SMP support for BCM63138
   - imx: support new I.MX7D SoC
   - zte: basic support for ZX296702 SoC"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (134 commits)
  ARM: zx: Add basic defconfig support for ZX296702
  ARM: dts: zx: add an initial zx296702 dts and doc
  clk: zx: add clock support to zx296702
  dt-bindings: Add #defines for ZTE ZX296702 clocks
  ARM: socfpga: fix build error due to secondary_startup
  MAINTAINERS: ARM64: EXYNOS: Extend entry for ARM64 DTS
  ARM: ep93xx: simone: support for SPI-based MMC/SD cards
  MAINTAINERS: update Shawn's email to use kernel.org one
  ARM: socfpga: support suspend to ram
  ARM: socfpga: add CPU_METHOD_OF_DECLARE for Arria 10
  ARM: socfpga: use CPU_METHOD_OF_DECLARE for socfpga_cyclone5
  ARM: EXYNOS: register power domain driver from core_initcall
  ARM: EXYNOS: use PS_HOLD based poweroff for all supported SoCs
  ARM: SAMSUNG: Constify platform_device_id
  ARM: EXYNOS: Constify irq_domain_ops
  ARM: EXYNOS: add coupled cpuidle support for Exynos3250
  ARM: EXYNOS: add exynos_get_boot_addr() helper
  ARM: EXYNOS: add exynos_set_boot_addr() helper
  ARM: EXYNOS: make exynos_core_restart() less verbose
  ARM: EXYNOS: fix exynos_boot_secondary() return value on timeout
  ...
This commit is contained in:
Linus Torvalds
2015-06-26 11:34:35 -07:00
parent c11d716218 2879e43f09
commit 4aa705b18b
217 changed files with 6574 additions and 2063 deletions
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57
arch/arm/mach-socfpga/platsmp.c
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@@ -54,32 +54,43 @@ static int socfpga_boot_secondary(unsigned int cpu, struct task_struct *idle)
return 0;
}
/*
* Initialise the CPU possible map early - this describes the CPUs
* which may be present or become present in the system.
*/
static void __init socfpga_smp_init_cpus(void)
static int socfpga_a10_boot_secondary(unsigned int cpu, struct task_struct *idle)
{
unsigned int i, ncores;
int trampoline_size = &secondary_trampoline_end - &secondary_trampoline;
ncores = scu_get_core_count(socfpga_scu_base_addr);
if (socfpga_cpu1start_addr) {
writel(RSTMGR_MPUMODRST_CPU1, rst_manager_base_addr +
SOCFPGA_A10_RSTMGR_MODMPURST);
memcpy(phys_to_virt(0), &secondary_trampoline, trampoline_size);
for (i = 0; i < ncores; i++)
set_cpu_possible(i, true);
writel(virt_to_phys(secondary_startup),
sys_manager_base_addr + (socfpga_cpu1start_addr & 0x00000fff));
/* sanity check */
if (ncores > num_possible_cpus()) {
pr_warn("socfpga: no. of cores (%d) greater than configured"
"maximum of %d - clipping\n", ncores, num_possible_cpus());
ncores = num_possible_cpus();
flush_cache_all();
smp_wmb();
outer_clean_range(0, trampoline_size);
/* This will release CPU #1 out of reset. */
writel(0, rst_manager_base_addr + SOCFPGA_A10_RSTMGR_MODMPURST);
}
for (i = 0; i < ncores; i++)
set_cpu_possible(i, true);
return 0;
}
static void __init socfpga_smp_prepare_cpus(unsigned int max_cpus)
{
struct device_node *np;
void __iomem *socfpga_scu_base_addr;
np = of_find_compatible_node(NULL, NULL, "arm,cortex-a9-scu");
if (!np) {
pr_err("%s: missing scu\n", __func__);
return;
}
socfpga_scu_base_addr = of_iomap(np, 0);
if (!socfpga_scu_base_addr)
return;
scu_enable(socfpga_scu_base_addr);
}
@@ -95,11 +106,21 @@ static void socfpga_cpu_die(unsigned int cpu)
cpu_do_idle();
}
struct smp_operations socfpga_smp_ops __initdata = {
.smp_init_cpus = socfpga_smp_init_cpus,
static struct smp_operations socfpga_smp_ops __initdata = {
.smp_prepare_cpus = socfpga_smp_prepare_cpus,
.smp_boot_secondary = socfpga_boot_secondary,
#ifdef CONFIG_HOTPLUG_CPU
.cpu_die = socfpga_cpu_die,
#endif
};
static struct smp_operations socfpga_a10_smp_ops __initdata = {
.smp_prepare_cpus = socfpga_smp_prepare_cpus,
.smp_boot_secondary = socfpga_a10_boot_secondary,
#ifdef CONFIG_HOTPLUG_CPU
.cpu_die = socfpga_cpu_die,
#endif
};
CPU_METHOD_OF_DECLARE(socfpga_smp, "altr,socfpga-smp", &socfpga_smp_ops);
CPU_METHOD_OF_DECLARE(socfpga_a10_smp, "altr,socfpga-a10-smp", &socfpga_a10_smp_ops);