diff options
| author | stanley.miao <stanley.miao@windriver.com> | 2010-08-02 14:21:40 +0300 |
|---|---|---|
| committer | Tony Lindgren <tony@atomide.com> | 2010-08-02 14:21:40 +0300 |
| commit | ad0c63f1d623ea9d3e0c0521d5ce9cd522c4e1f0 (patch) | |
| tree | e1e2a03ab651b7d21b6753af91f1a08c77af542a /arch | |
| parent | 72a1179ed41e0fc6bd5eb58e02e8d230eba10e24 (diff) | |
OMAP3: AM3505/3517 do not have IO wakeup capability
AM3505/3517 doesn't have IO wakeup capability, so we do not need to set
the bit OMAP3430_EN_IO and the bit OMAP3430_EN_IO_CHAIN in the register
PM_WKEN_WKUP when the system enters suspend state.
Tested on AM3517EVM and OMAP3530EVM.
Signed-off-by: Stanley.Miao <stanley.miao@windriver.com>
Acked-by: Kevin Hilman <khilman@deeprootsystems.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-omap2/id.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/pm34xx.c | 7 | ||||
| -rw-r--r-- | arch/arm/plat-omap/include/plat/cpu.h | 2 |
3 files changed, 8 insertions, 3 deletions
diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c index c7bf0e1c4d9..ccaa1ed8e0f 100644 --- a/arch/arm/mach-omap2/id.c +++ b/arch/arm/mach-omap2/id.c @@ -179,6 +179,8 @@ static void __init omap3_check_features(void) OMAP3_CHECK_FEATURE(status, ISP); if (cpu_is_omap3630()) omap3_features |= OMAP3_HAS_192MHZ_CLK; + if (!cpu_is_omap3505() && !cpu_is_omap3517()) + omap3_features |= OMAP3_HAS_IO_WAKEUP; /* * TODO: Get additional info (where applicable) diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index b88737fd6cf..fb4994ad622 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -385,8 +385,9 @@ void omap_sram_idle(void) /* Enable IO-PAD and IO-CHAIN wakeups */ per_next_state = pwrdm_read_next_pwrst(per_pwrdm); core_next_state = pwrdm_read_next_pwrst(core_pwrdm); - if (per_next_state < PWRDM_POWER_ON || - core_next_state < PWRDM_POWER_ON) { + if (omap3_has_io_wakeup() && \ + (per_next_state < PWRDM_POWER_ON || + core_next_state < PWRDM_POWER_ON)) { prm_set_mod_reg_bits(OMAP3430_EN_IO_MASK, WKUP_MOD, PM_WKEN); omap3_enable_io_chain(); } @@ -479,7 +480,7 @@ void omap_sram_idle(void) } /* Disable IO-PAD and IO-CHAIN wakeup */ - if (core_next_state < PWRDM_POWER_ON) { + if (omap3_has_io_wakeup() && core_next_state < PWRDM_POWER_ON) { prm_clear_mod_reg_bits(OMAP3430_EN_IO_MASK, WKUP_MOD, PM_WKEN); omap3_disable_io_chain(); } diff --git a/arch/arm/plat-omap/include/plat/cpu.h b/arch/arm/plat-omap/include/plat/cpu.h index 75141742300..aa2f4f079f5 100644 --- a/arch/arm/plat-omap/include/plat/cpu.h +++ b/arch/arm/plat-omap/include/plat/cpu.h @@ -444,6 +444,7 @@ extern u32 omap3_features; #define OMAP3_HAS_NEON BIT(3) #define OMAP3_HAS_ISP BIT(4) #define OMAP3_HAS_192MHZ_CLK BIT(5) +#define OMAP3_HAS_IO_WAKEUP BIT(6) #define OMAP3_HAS_FEATURE(feat,flag) \ static inline unsigned int omap3_has_ ##feat(void) \ @@ -457,5 +458,6 @@ OMAP3_HAS_FEATURE(iva, IVA) OMAP3_HAS_FEATURE(neon, NEON) OMAP3_HAS_FEATURE(isp, ISP) OMAP3_HAS_FEATURE(192mhz_clk, 192MHZ_CLK) +OMAP3_HAS_FEATURE(io_wakeup, IO_WAKEUP) #endif |