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ARM: SoC platform updates for 4.15

Browse source 
Most of the commits are for defconfig changes, to enable newly added
 drivers or features that people have started using. For the changed
 lines lines, we have mostly cleanups, the affected platforms are
 OMAP, Versatile, EP93xx, Samsung, Broadcom, i.MX, and Actions.
 
 The largest single change is the introduction of the TI "sysc" bus
 driver, with the intention of cleaning up more legacy code.
 
 Two new SoC platforms get added this time:
 - Allwinner R40 is a modernized version of the A20 chip, now
   with a Quad-Core ARM Cortex-A7. According to the manufacturer,
   it is intended for "Smart Hardware"
 - Broadcom Hurricane 2 (Aka Strataconnect BCM5334X) is a family
   of chips meant for managed gigabit ethernet switches, based
   around a Cortex-A9 CPU.
 
 Finally, we gain SMP support for two platforms: Renesas R-Car E2
 and Amlogic Meson8/8b, which were previously added but only supported
 uniprocessor operation.
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Merge tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

Pull ARM SoC platform updates from Arnd Bergmann:
 "Most of the commits are for defconfig changes, to enable newly added
  drivers or features that people have started using. For the changed
  lines lines, we have mostly cleanups, the affected platforms are OMAP,
  Versatile, EP93xx, Samsung, Broadcom, i.MX, and Actions.

  The largest single change is the introduction of the TI "sysc" bus
  driver, with the intention of cleaning up more legacy code.

  Two new SoC platforms get added this time:

   - Allwinner R40 is a modernized version of the A20 chip, now with a
     Quad-Core ARM Cortex-A7. According to the manufacturer, it is
     intended for "Smart Hardware"

   - Broadcom Hurricane 2 (Aka Strataconnect BCM5334X) is a family of
     chips meant for managed gigabit ethernet switches, based around a
     Cortex-A9 CPU.

  Finally, we gain SMP support for two platforms: Renesas R-Car E2 and
  Amlogic Meson8/8b, which were previously added but only supported
  uniprocessor operation"

* tag 'armsoc-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (118 commits)
  ARM: multi_v7_defconfig: Select RPMSG_VIRTIO as module
  ARM: multi_v7_defconfig: enable CONFIG_GPIO_UNIPHIER
  arm64: defconfig: enable CONFIG_GPIO_UNIPHIER
  ARM: meson: enable MESON_IRQ_GPIO in Kconfig for meson8b
  ARM: meson: Add SMP bringup code for Meson8 and Meson8b
  ARM: smp_scu: allow the platform code to read the SCU CPU status
  ARM: smp_scu: add a helper for powering on a specific CPU
  dt-bindings: Amlogic: Add Meson8 and Meson8b SMP related documentation
  ARM: OMAP3: Delete an unnecessary variable initialisation in omap3xxx_hwmod_init()
  ARM: OMAP3: Use common error handling code in omap3xxx_hwmod_init()
  ARM: defconfig: select the right SX150X driver
  arm64: defconfig: Enable QCOM_IOMMU
  arm64: Add ThunderX drivers to defconfig
  arm64: defconfig: Enable Tegra PCI controller
  cpufreq: imx6q: Move speed grading check to cpufreq driver
  arm64: defconfig: re-enable Qualcomm DB410c USB
  ARM: configs: stm32: Add MDMA support in STM32 defconfig
  ARM: imx: Enable cpuidle for i.MX6DL starting at 1.1
  bus: ti-sysc: Fix unbalanced pm_runtime_enable by adding remove
  bus: ti-sysc: mark PM functions as __maybe_unused
  ...
This commit is contained in:
Linus Torvalds 2017-11-16 14:05:12 -08:00
commit 8c60969856
130 changed files with 2267 additions and 3144 deletions
Download patch file Download diff file Expand all files Collapse all files

79
drivers/irqchip/irq-bcm2836.c
View file

@ -19,63 +19,10 @@
#include <linux/of_irq.h>
#include <linux/irqchip.h>
#include <linux/irqdomain.h>
#include <linux/irqchip/irq-bcm2836.h>
#include <asm/exception.h>
#define LOCAL_CONTROL 0x000
#define LOCAL_PRESCALER 0x008
/*
* The low 2 bits identify the CPU that the GPU IRQ goes to, and the
* next 2 bits identify the CPU that the GPU FIQ goes to.
*/
#define LOCAL_GPU_ROUTING 0x00c
/* When setting bits 0-3, enables PMU interrupts on that CPU. */
#define LOCAL_PM_ROUTING_SET 0x010
/* When setting bits 0-3, disables PMU interrupts on that CPU. */
#define LOCAL_PM_ROUTING_CLR 0x014
/*
* The low 4 bits of this are the CPU's timer IRQ enables, and the
* next 4 bits are the CPU's timer FIQ enables (which override the IRQ
* bits).
*/
#define LOCAL_TIMER_INT_CONTROL0 0x040
/*
* The low 4 bits of this are the CPU's per-mailbox IRQ enables, and
* the next 4 bits are the CPU's per-mailbox FIQ enables (which
* override the IRQ bits).
*/
#define LOCAL_MAILBOX_INT_CONTROL0 0x050
/*
* The CPU's interrupt status register. Bits are defined by the the
* LOCAL_IRQ_* bits below.
*/
#define LOCAL_IRQ_PENDING0 0x060
/* Same status bits as above, but for FIQ. */
#define LOCAL_FIQ_PENDING0 0x070
/*
* Mailbox write-to-set bits. There are 16 mailboxes, 4 per CPU, and
* these bits are organized by mailbox number and then CPU number. We
* use mailbox 0 for IPIs. The mailbox's interrupt is raised while
* any bit is set.
*/
#define LOCAL_MAILBOX0_SET0 0x080
#define LOCAL_MAILBOX3_SET0 0x08c
/* Mailbox write-to-clear bits. */
#define LOCAL_MAILBOX0_CLR0 0x0c0
#define LOCAL_MAILBOX3_CLR0 0x0cc
#define LOCAL_IRQ_CNTPSIRQ 0
#define LOCAL_IRQ_CNTPNSIRQ 1
#define LOCAL_IRQ_CNTHPIRQ 2
#define LOCAL_IRQ_CNTVIRQ 3
#define LOCAL_IRQ_MAILBOX0 4
#define LOCAL_IRQ_MAILBOX1 5
#define LOCAL_IRQ_MAILBOX2 6
#define LOCAL_IRQ_MAILBOX3 7
#define LOCAL_IRQ_GPU_FAST 8
#define LOCAL_IRQ_PMU_FAST 9
#define LAST_IRQ LOCAL_IRQ_PMU_FAST
struct bcm2836_arm_irqchip_intc {
struct irq_domain *domain;
void __iomem *base;
@ -215,24 +162,6 @@ static int bcm2836_cpu_dying(unsigned int cpu)
cpu);
return 0;
}
#ifdef CONFIG_ARM
static int __init bcm2836_smp_boot_secondary(unsigned int cpu,
struct task_struct *idle)
{
unsigned long secondary_startup_phys =
(unsigned long)virt_to_phys((void *)secondary_startup);
writel(secondary_startup_phys,
intc.base + LOCAL_MAILBOX3_SET0 + 16 * cpu);
return 0;
}
static const struct smp_operations bcm2836_smp_ops __initconst = {
.smp_boot_secondary = bcm2836_smp_boot_secondary,
};
#endif
#endif
static const struct irq_domain_ops bcm2836_arm_irqchip_intc_ops = {
@ -249,10 +178,6 @@ bcm2836_arm_irqchip_smp_init(void)
bcm2836_cpu_dying);
set_smp_cross_call(bcm2836_arm_irqchip_send_ipi);
#ifdef CONFIG_ARM
smp_set_ops(&bcm2836_smp_ops);
#endif
#endif
}