diff options
Diffstat (limited to 'arch/arm/mach-imx')
| -rw-r--r-- | arch/arm/mach-imx/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/mach-imx/common.h | 2 | ||||
| -rw-r--r-- | arch/arm/mach-imx/cpuidle-imx6q.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-imx/cpuidle-imx6sx.c | 11 | ||||
| -rw-r--r-- | arch/arm/mach-imx/gpc.c | 6 | ||||
| -rw-r--r-- | arch/arm/mach-imx/mach-imx6ul.c | 3 | ||||
| -rw-r--r-- | arch/arm/mach-imx/pm-imx6.c | 8 |
7 files changed, 27 insertions, 6 deletions
diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile index 9f5fffd..574e5b8 100644 --- a/arch/arm/mach-imx/Makefile +++ b/arch/arm/mach-imx/Makefile @@ -28,6 +28,7 @@ obj-$(CONFIG_SOC_IMX5) += cpuidle-imx5.o obj-$(CONFIG_SOC_IMX6Q) += cpuidle-imx6q.o obj-$(CONFIG_SOC_IMX6SL) += cpuidle-imx6sl.o obj-$(CONFIG_SOC_IMX6SX) += cpuidle-imx6sx.o +obj-$(CONFIG_SOC_IMX6UL) += cpuidle-imx6sx.o endif ifdef CONFIG_SND_IMX_SOC diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h index a8f4693..fb64430 100644 --- a/arch/arm/mach-imx/common.h +++ b/arch/arm/mach-imx/common.h @@ -109,7 +109,7 @@ void imx_anatop_init(void); void imx_anatop_pre_suspend(void); void imx_anatop_post_resume(void); int imx6_set_lpm(enum mxc_cpu_pwr_mode mode); -void imx6q_set_int_mem_clk_lpm(bool enable); +void imx6_set_int_mem_clk_lpm(bool enable); void imx6sl_set_wait_clk(bool enter); int imx_mmdc_get_ddr_type(void); diff --git a/arch/arm/mach-imx/cpuidle-imx6q.c b/arch/arm/mach-imx/cpuidle-imx6q.c index db0f48c..bfeb25a 100644 --- a/arch/arm/mach-imx/cpuidle-imx6q.c +++ b/arch/arm/mach-imx/cpuidle-imx6q.c @@ -85,7 +85,7 @@ EXPORT_SYMBOL_GPL(imx6q_cpuidle_fec_irqs_unused); int __init imx6q_cpuidle_init(void) { /* Set INT_MEM_CLK_LPM bit to get a reliable WAIT mode support */ - imx6q_set_int_mem_clk_lpm(true); + imx6_set_int_mem_clk_lpm(true); return cpuidle_register(&imx6q_cpuidle_driver, NULL); } diff --git a/arch/arm/mach-imx/cpuidle-imx6sx.c b/arch/arm/mach-imx/cpuidle-imx6sx.c index 3c6672b..c5a5c3a 100644 --- a/arch/arm/mach-imx/cpuidle-imx6sx.c +++ b/arch/arm/mach-imx/cpuidle-imx6sx.c @@ -9,6 +9,7 @@ #include <linux/cpuidle.h> #include <linux/cpu_pm.h> #include <linux/module.h> +#include <asm/cacheflush.h> #include <asm/cpuidle.h> #include <asm/suspend.h> @@ -17,6 +18,15 @@ static int imx6sx_idle_finish(unsigned long val) { + /* + * for Cortex-A7 which has an internal L2 + * cache, need to flush it before powering + * down ARM platform, since flushing L1 cache + * here again has very small overhead, compared + * to adding conditional code for L2 cache type, + * just call flush_cache_all() is fine. + */ + flush_cache_all(); cpu_do_idle(); return 0; @@ -90,6 +100,7 @@ static struct cpuidle_driver imx6sx_cpuidle_driver = { int __init imx6sx_cpuidle_init(void) { + imx6_set_int_mem_clk_lpm(true); imx6_enable_rbc(false); /* * set ARM power up/down timing to the fastest, diff --git a/arch/arm/mach-imx/gpc.c b/arch/arm/mach-imx/gpc.c index fd87205..0df062d 100644 --- a/arch/arm/mach-imx/gpc.c +++ b/arch/arm/mach-imx/gpc.c @@ -271,6 +271,12 @@ static int __init imx_gpc_init(struct device_node *node, for (i = 0; i < IMR_NUM; i++) writel_relaxed(~0, gpc_base + GPC_IMR1 + i * 4); + /* + * Clear the OF_POPULATED flag set in of_irq_init so that + * later the GPC power domain driver will not be skipped. + */ + of_node_clear_flag(node, OF_POPULATED); + return 0; } IRQCHIP_DECLARE(imx_gpc, "fsl,imx6q-gpc", imx_gpc_init); diff --git a/arch/arm/mach-imx/mach-imx6ul.c b/arch/arm/mach-imx/mach-imx6ul.c index 5d9bfab..08308a1 100644 --- a/arch/arm/mach-imx/mach-imx6ul.c +++ b/arch/arm/mach-imx/mach-imx6ul.c @@ -16,6 +16,7 @@ #include <asm/mach/map.h> #include "common.h" +#include "cpuidle.h" static void __init imx6ul_enet_clk_init(void) { @@ -79,6 +80,8 @@ static void __init imx6ul_init_irq(void) static void __init imx6ul_init_late(void) { + imx6sx_cpuidle_init(); + if (IS_ENABLED(CONFIG_ARM_IMX6Q_CPUFREQ)) platform_device_register_simple("imx6q-cpufreq", -1, NULL, 0); } diff --git a/arch/arm/mach-imx/pm-imx6.c b/arch/arm/mach-imx/pm-imx6.c index 58924b3..5496483 100644 --- a/arch/arm/mach-imx/pm-imx6.c +++ b/arch/arm/mach-imx/pm-imx6.c @@ -217,7 +217,7 @@ struct imx6_cpu_pm_info { u32 mmdc_io_val[MX6_MAX_MMDC_IO_NUM][2]; /* To save offset and value */ } __aligned(8); -void imx6q_set_int_mem_clk_lpm(bool enable) +void imx6_set_int_mem_clk_lpm(bool enable) { u32 val = readl_relaxed(ccm_base + CGPR); @@ -367,7 +367,7 @@ static int imx6q_pm_enter(suspend_state_t state) switch (state) { case PM_SUSPEND_STANDBY: imx6_set_lpm(STOP_POWER_ON); - imx6q_set_int_mem_clk_lpm(true); + imx6_set_int_mem_clk_lpm(true); imx_gpc_pre_suspend(false); if (cpu_is_imx6sl()) imx6sl_set_wait_clk(true); @@ -380,7 +380,7 @@ static int imx6q_pm_enter(suspend_state_t state) break; case PM_SUSPEND_MEM: imx6_set_lpm(STOP_POWER_OFF); - imx6q_set_int_mem_clk_lpm(false); + imx6_set_int_mem_clk_lpm(false); imx6q_enable_wb(true); /* * For suspend into ocram, asm code already take care of @@ -398,7 +398,7 @@ static int imx6q_pm_enter(suspend_state_t state) imx_gpc_post_resume(); imx6_enable_rbc(false); imx6q_enable_wb(false); - imx6q_set_int_mem_clk_lpm(true); + imx6_set_int_mem_clk_lpm(true); imx6_set_lpm(WAIT_CLOCKED); break; default: |
