diff options
| author | Thierry Reding <treding@nvidia.com> | 2014-07-11 13:19:06 +0200 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2014-07-17 14:58:43 +0200 |
| commit | 7232398abc6a7186e315425638c367d50c674718 (patch) | |
| tree | 874b08603b104c3b42a07cb7c1402a8f3bcf5ec0 /arch/arm/mach-tegra/pm.c | |
| parent | 24fa5af81059af90c723bec6aacc3cd2b2809d14 (diff) | |
ARM: tegra: Convert PMC to a driver
This commit converts the PMC support code to a platform driver. Because
the boot process needs to call into this driver very early, also set up
a minimal environment via an early initcall.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'arch/arm/mach-tegra/pm.c')
| -rw-r--r-- | arch/arm/mach-tegra/pm.c | 32 |
1 files changed, 24 insertions, 8 deletions
diff --git a/arch/arm/mach-tegra/pm.c b/arch/arm/mach-tegra/pm.c index 94db3b6664df..b0f48a3946fa 100644 --- a/arch/arm/mach-tegra/pm.c +++ b/arch/arm/mach-tegra/pm.c @@ -28,6 +28,8 @@ #include <linux/suspend.h> #include <soc/tegra/fuse.h> +#include <soc/tegra/pm.h> +#include <soc/tegra/pmc.h> #include <asm/cacheflush.h> #include <asm/idmap.h> @@ -38,7 +40,6 @@ #include "flowctrl.h" #include "iomap.h" -#include "pmc.h" #include "pm.h" #include "reset.h" #include "sleep.h" @@ -167,9 +168,29 @@ static int tegra_sleep_cpu(unsigned long v2p) return 0; } +static void tegra_pm_set(enum tegra_suspend_mode mode) +{ + u32 value; + + switch (tegra_get_chip_id()) { + case TEGRA20: + case TEGRA30: + break; + default: + /* Turn off CRAIL */ + value = flowctrl_read_cpu_csr(0); + value &= ~FLOW_CTRL_CSR_ENABLE_EXT_MASK; + value |= FLOW_CTRL_CSR_ENABLE_EXT_CRAIL; + flowctrl_write_cpu_csr(0, value); + break; + } + + tegra_pmc_enter_suspend_mode(mode); +} + void tegra_idle_lp2_last(void) { - tegra_pmc_pm_set(TEGRA_SUSPEND_LP2); + tegra_pm_set(TEGRA_SUSPEND_LP2); cpu_cluster_pm_enter(); suspend_cpu_complex(); @@ -268,8 +289,6 @@ static bool tegra_sleep_core_init(void) static void tegra_suspend_enter_lp1(void) { - tegra_pmc_suspend(); - /* copy the reset vector & SDRAM shutdown code into IRAM */ memcpy(iram_save_addr, IO_ADDRESS(TEGRA_IRAM_LPx_RESUME_AREA), iram_save_size); @@ -281,8 +300,6 @@ static void tegra_suspend_enter_lp1(void) static void tegra_suspend_exit_lp1(void) { - tegra_pmc_resume(); - /* restore IRAM */ memcpy(IO_ADDRESS(TEGRA_IRAM_LPx_RESUME_AREA), iram_save_addr, iram_save_size); @@ -307,7 +324,7 @@ static int tegra_suspend_enter(suspend_state_t state) pr_info("Entering suspend state %s\n", lp_state[mode]); - tegra_pmc_pm_set(mode); + tegra_pm_set(mode); local_fiq_disable(); @@ -355,7 +372,6 @@ void __init tegra_init_suspend(void) return; tegra_tear_down_cpu_init(); - tegra_pmc_suspend_init(); if (mode >= TEGRA_SUSPEND_LP1) { if (!tegra_lp1_iram_hook() || !tegra_sleep_core_init()) { |