diff options
| -rw-r--r-- | arch/arm/mach-tegra/flowctrl.h | 5 | ||||
| -rw-r--r-- | arch/arm/mach-tegra/pmc.c | 16 |
2 files changed, 20 insertions, 1 deletions
diff --git a/arch/arm/mach-tegra/flowctrl.h b/arch/arm/mach-tegra/flowctrl.h index de0acb9ee323..c89aac60a143 100644 --- a/arch/arm/mach-tegra/flowctrl.h +++ b/arch/arm/mach-tegra/flowctrl.h @@ -35,6 +35,11 @@ #define FLOW_CTRL_CPU0_CSR 0x8 #define FLOW_CTRL_CSR_INTR_FLAG (1 << 15) #define FLOW_CTRL_CSR_EVENT_FLAG (1 << 14) +#define FLOW_CTRL_CSR_ENABLE_EXT_CRAIL (1 << 13) +#define FLOW_CTRL_CSR_ENABLE_EXT_NCPU (1 << 12) +#define FLOW_CTRL_CSR_ENABLE_EXT_MASK ( \ + FLOW_CTRL_CSR_ENABLE_EXT_NCPU | \ + FLOW_CTRL_CSR_ENABLE_EXT_CRAIL) #define FLOW_CTRL_CSR_ENABLE (1 << 0) #define FLOW_CTRL_HALT_CPU1_EVENTS 0x14 #define FLOW_CTRL_CPU1_CSR 0x18 diff --git a/arch/arm/mach-tegra/pmc.c b/arch/arm/mach-tegra/pmc.c index eb3fa4aee0e4..8345fcdcc9d5 100644 --- a/arch/arm/mach-tegra/pmc.c +++ b/arch/arm/mach-tegra/pmc.c @@ -21,6 +21,7 @@ #include <linux/of.h> #include <linux/of_address.h> +#include "flowctrl.h" #include "fuse.h" #include "pm.h" #include "pmc.h" @@ -195,13 +196,26 @@ enum tegra_suspend_mode tegra_pmc_get_suspend_mode(void) void tegra_pmc_pm_set(enum tegra_suspend_mode mode) { - u32 reg; + u32 reg, csr_reg; unsigned long rate = 0; reg = tegra_pmc_readl(PMC_CTRL); reg |= TEGRA_POWER_CPU_PWRREQ_OE; reg &= ~TEGRA_POWER_EFFECT_LP0; + switch (tegra_chip_id) { + case TEGRA20: + case TEGRA30: + break; + default: + /* Turn off CRAIL */ + csr_reg = flowctrl_read_cpu_csr(0); + csr_reg &= ~FLOW_CTRL_CSR_ENABLE_EXT_MASK; + csr_reg |= FLOW_CTRL_CSR_ENABLE_EXT_CRAIL; + flowctrl_write_cpu_csr(0, csr_reg); + break; + } + switch (mode) { case TEGRA_SUSPEND_LP2: rate = clk_get_rate(tegra_pclk); |