diff options
| author | Anson Huang <Anson.Huang@nxp.com> | 2018-06-03 05:33:45 +0300 |
|---|---|---|
| committer | Shawn Guo <shawnguo@kernel.org> | 2018-06-19 04:07:16 +0300 |
| commit | e7fa1fb39b118cc8415a946fd2e6bc0f6b6c05c9 (patch) | |
| tree | d2c6cc582ef8b49d5a809252aeb3c8bb76397e70 /arch/arm/mach-imx | |
| parent | c791bbbf812a18a7831619783f12a316beeac558 (diff) | |
| download | linux-e7fa1fb39b118cc8415a946fd2e6bc0f6b6c05c9.tar.xz | |
ARM: imx: add cpu idle support for i.MX6SLL
i.MX6SLL supports cpu idle with ARM power gated,
it can reuse i.MX6SX's cpu idle driver to support
below 3 states of cpu idle:
state0: WFI;
state1: WAIT mode with ARM power on;
state2: WAIT mode with ARM power off.
L2_PGE in GPC_CNTR needs to be cleared to support
state2 cpu idle.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Diffstat (limited to 'arch/arm/mach-imx')
| -rw-r--r-- | arch/arm/mach-imx/Makefile | 4 | ||||
| -rw-r--r-- | arch/arm/mach-imx/cpuidle-imx6sx.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-imx/mach-imx6sl.c | 5 |
3 files changed, 7 insertions, 3 deletions
diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile index 2327e3e876d8..127fdf3ff600 100644 --- a/arch/arm/mach-imx/Makefile +++ b/arch/arm/mach-imx/Makefile @@ -25,8 +25,8 @@ obj-$(CONFIG_MXC_DEBUG_BOARD) += 3ds_debugboard.o ifeq ($(CONFIG_CPU_IDLE),y) obj-$(CONFIG_SOC_IMX5) += cpuidle-imx5.o obj-$(CONFIG_SOC_IMX6Q) += cpuidle-imx6q.o -obj-$(CONFIG_SOC_IMX6SL) += cpuidle-imx6sl.o -obj-$(CONFIG_SOC_IMX6SLL) += cpuidle-imx6sl.o +obj-$(CONFIG_SOC_IMX6SL) += cpuidle-imx6sl.o cpuidle-imx6sx.o +obj-$(CONFIG_SOC_IMX6SLL) += cpuidle-imx6sl.o cpuidle-imx6sx.o obj-$(CONFIG_SOC_IMX6SX) += cpuidle-imx6sx.o obj-$(CONFIG_SOC_IMX6UL) += cpuidle-imx6sx.o endif diff --git a/arch/arm/mach-imx/cpuidle-imx6sx.c b/arch/arm/mach-imx/cpuidle-imx6sx.c index d0f14b761ff7..243a108a940b 100644 --- a/arch/arm/mach-imx/cpuidle-imx6sx.c +++ b/arch/arm/mach-imx/cpuidle-imx6sx.c @@ -103,6 +103,7 @@ int __init imx6sx_cpuidle_init(void) { imx6_set_int_mem_clk_lpm(true); imx6_enable_rbc(false); + imx_gpc_set_l2_mem_power_in_lpm(false); /* * set ARM power up/down timing to the fastest, * sw2iso and sw can be set to one 32K cycle = 31us diff --git a/arch/arm/mach-imx/mach-imx6sl.c b/arch/arm/mach-imx/mach-imx6sl.c index c7a1ef180dda..183540e0838b 100644 --- a/arch/arm/mach-imx/mach-imx6sl.c +++ b/arch/arm/mach-imx/mach-imx6sl.c @@ -42,7 +42,10 @@ static void __init imx6sl_init_late(void) if (IS_ENABLED(CONFIG_ARM_IMX6Q_CPUFREQ)) platform_device_register_simple("imx6q-cpufreq", -1, NULL, 0); - imx6sl_cpuidle_init(); + if (cpu_is_imx6sl()) + imx6sl_cpuidle_init(); + else + imx6sx_cpuidle_init(); } static void __init imx6sl_init_machine(void) |