diff options
-rw-r--r-- | Documentation/devicetree/bindings/arm/cpus.txt | 2 | ||||
-rw-r--r-- | arch/arm/mach-sunxi/common.h | 19 | ||||
-rw-r--r-- | arch/arm/mach-sunxi/platsmp.c | 3 | ||||
-rw-r--r-- | arch/arm/mach-sunxi/sunxi.c | 110 |
4 files changed, 3 insertions, 131 deletions
diff --git a/Documentation/devicetree/bindings/arm/cpus.txt b/Documentation/devicetree/bindings/arm/cpus.txt index 4bbcf4fb7583..e4b6dafbcfc4 100644 --- a/Documentation/devicetree/bindings/arm/cpus.txt +++ b/Documentation/devicetree/bindings/arm/cpus.txt @@ -182,6 +182,8 @@ nodes to be present and contain the properties described below. "psci" # On ARM 32-bit systems this property is optional and can be one of: + "arm,psci" + "allwinner,sun6i-a31" "qcom,gcc-msm8660" "qcom,kpss-acc-v1" "qcom,kpss-acc-v2" diff --git a/arch/arm/mach-sunxi/common.h b/arch/arm/mach-sunxi/common.h deleted file mode 100644 index 9e5ac4756cbb..000000000000 --- a/arch/arm/mach-sunxi/common.h +++ /dev/null @@ -1,19 +0,0 @@ -/* - * Core functions for Allwinner SoCs - * - * Copyright (C) 2013 Maxime Ripard - * - * Maxime Ripard <maxime.ripard@free-electrons.com> - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - */ - -#ifndef __ARCH_SUNXI_COMMON_H_ -#define __ARCH_SUNXI_COMMON_H_ - -void sun6i_secondary_startup(void); -extern struct smp_operations sun6i_smp_ops; - -#endif /* __ARCH_SUNXI_COMMON_H_ */ diff --git a/arch/arm/mach-sunxi/platsmp.c b/arch/arm/mach-sunxi/platsmp.c index 0c7dbce033cc..c53077bb8c3f 100644 --- a/arch/arm/mach-sunxi/platsmp.c +++ b/arch/arm/mach-sunxi/platsmp.c @@ -21,8 +21,6 @@ #include <linux/of_address.h> #include <linux/smp.h> -#include "common.h" - #define CPUCFG_CPU_PWR_CLAMP_STATUS_REG(cpu) ((cpu) * 0x40 + 0x64) #define CPUCFG_CPU_RST_CTRL_REG(cpu) (((cpu) + 1) * 0x40) #define CPUCFG_CPU_CTRL_REG(cpu) (((cpu) + 1) * 0x40 + 0x04) @@ -122,3 +120,4 @@ struct smp_operations sun6i_smp_ops __initdata = { .smp_prepare_cpus = sun6i_smp_prepare_cpus, .smp_boot_secondary = sun6i_smp_boot_secondary, }; +CPU_METHOD_OF_DECLARE(sun6i_smp, "allwinner,sun6i-a31", &sun6i_smp_ops); diff --git a/arch/arm/mach-sunxi/sunxi.c b/arch/arm/mach-sunxi/sunxi.c index 460b5a4962ef..ff2e6a404dab 100644 --- a/arch/arm/mach-sunxi/sunxi.c +++ b/arch/arm/mach-sunxi/sunxi.c @@ -12,111 +12,8 @@ #include <linux/clk-provider.h> #include <linux/clocksource.h> -#include <linux/delay.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/of_address.h> -#include <linux/of_irq.h> -#include <linux/of_platform.h> -#include <linux/io.h> -#include <linux/reboot.h> #include <asm/mach/arch.h> -#include <asm/mach/map.h> -#include <asm/system_misc.h> - -#include "common.h" - -#define SUN4I_WATCHDOG_CTRL_REG 0x00 -#define SUN4I_WATCHDOG_CTRL_RESTART BIT(0) -#define SUN4I_WATCHDOG_MODE_REG 0x04 -#define SUN4I_WATCHDOG_MODE_ENABLE BIT(0) -#define SUN4I_WATCHDOG_MODE_RESET_ENABLE BIT(1) - -#define SUN6I_WATCHDOG1_IRQ_REG 0x00 -#define SUN6I_WATCHDOG1_CTRL_REG 0x10 -#define SUN6I_WATCHDOG1_CTRL_RESTART BIT(0) -#define SUN6I_WATCHDOG1_CONFIG_REG 0x14 -#define SUN6I_WATCHDOG1_CONFIG_RESTART BIT(0) -#define SUN6I_WATCHDOG1_CONFIG_IRQ BIT(1) -#define SUN6I_WATCHDOG1_MODE_REG 0x18 -#define SUN6I_WATCHDOG1_MODE_ENABLE BIT(0) - -static void __iomem *wdt_base; - -static void sun4i_restart(enum reboot_mode mode, const char *cmd) -{ - if (!wdt_base) - return; - - /* Enable timer and set reset bit in the watchdog */ - writel(SUN4I_WATCHDOG_MODE_ENABLE | SUN4I_WATCHDOG_MODE_RESET_ENABLE, - wdt_base + SUN4I_WATCHDOG_MODE_REG); - - /* - * Restart the watchdog. The default (and lowest) interval - * value for the watchdog is 0.5s. - */ - writel(SUN4I_WATCHDOG_CTRL_RESTART, wdt_base + SUN4I_WATCHDOG_CTRL_REG); - - while (1) { - mdelay(5); - writel(SUN4I_WATCHDOG_MODE_ENABLE | SUN4I_WATCHDOG_MODE_RESET_ENABLE, - wdt_base + SUN4I_WATCHDOG_MODE_REG); - } -} - -static void sun6i_restart(enum reboot_mode mode, const char *cmd) -{ - if (!wdt_base) - return; - - /* Disable interrupts */ - writel(0, wdt_base + SUN6I_WATCHDOG1_IRQ_REG); - - /* We want to disable the IRQ and just reset the whole system */ - writel(SUN6I_WATCHDOG1_CONFIG_RESTART, - wdt_base + SUN6I_WATCHDOG1_CONFIG_REG); - - /* Enable timer. The default and lowest interval value is 0.5s */ - writel(SUN6I_WATCHDOG1_MODE_ENABLE, - wdt_base + SUN6I_WATCHDOG1_MODE_REG); - - /* Restart the watchdog. */ - writel(SUN6I_WATCHDOG1_CTRL_RESTART, - wdt_base + SUN6I_WATCHDOG1_CTRL_REG); - - while (1) { - mdelay(5); - writel(SUN6I_WATCHDOG1_MODE_ENABLE, - wdt_base + SUN6I_WATCHDOG1_MODE_REG); - } -} - -static struct of_device_id sunxi_restart_ids[] = { - { .compatible = "allwinner,sun4i-a10-wdt" }, - { .compatible = "allwinner,sun6i-a31-wdt" }, - { /*sentinel*/ } -}; - -static void sunxi_setup_restart(void) -{ - struct device_node *np; - - np = of_find_matching_node(NULL, sunxi_restart_ids); - if (WARN(!np, "unable to setup watchdog restart")) - return; - - wdt_base = of_iomap(np, 0); - WARN(!wdt_base, "failed to map watchdog base address"); -} - -static void __init sunxi_dt_init(void) -{ - sunxi_setup_restart(); - - of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); -} static const char * const sunxi_board_dt_compat[] = { "allwinner,sun4i-a10", @@ -126,9 +23,7 @@ static const char * const sunxi_board_dt_compat[] = { }; DT_MACHINE_START(SUNXI_DT, "Allwinner A1X (Device Tree)") - .init_machine = sunxi_dt_init, .dt_compat = sunxi_board_dt_compat, - .restart = sun4i_restart, MACHINE_END static const char * const sun6i_board_dt_compat[] = { @@ -145,11 +40,8 @@ static void __init sun6i_timer_init(void) } DT_MACHINE_START(SUN6I_DT, "Allwinner sun6i (A31) Family") - .init_machine = sunxi_dt_init, .init_time = sun6i_timer_init, .dt_compat = sun6i_board_dt_compat, - .restart = sun6i_restart, - .smp = smp_ops(sun6i_smp_ops), MACHINE_END static const char * const sun7i_board_dt_compat[] = { @@ -158,7 +50,5 @@ static const char * const sun7i_board_dt_compat[] = { }; DT_MACHINE_START(SUN7I_DT, "Allwinner sun7i (A20) Family") - .init_machine = sunxi_dt_init, .dt_compat = sun7i_board_dt_compat, - .restart = sun4i_restart, MACHINE_END |