diff options
| author | Zhou Jingyu <b02241@freescale.com> | 2011-01-18 18:38:14 +0800 |
|---|---|---|
| committer | Zhou Jingyu <b02241@freescale.com> | 2011-01-19 11:00:19 +0800 |
| commit | ea1ad906e01eece1563a8762abd638cb2fdfa19b (patch) | |
| tree | fa7dd884d1f851f239d69ac65afb1b76ae6e92cb | |
| parent | b35903fa11e9cf496f0c195bf898cac51b87fb13 (diff) | |
ENGR00138138 Add workaround to fix irq wakeup for mx53 smd &loco
Make sure only DA9053 irq configured as wakeup source for mx53 smd &loco
Signed-off-by: Zhou Jingyu <Jingyu.Zhou@freescale.com>
| -rw-r--r-- | arch/arm/mach-mx5/pm.c | 27 |
1 files changed, 26 insertions, 1 deletions
diff --git a/arch/arm/mach-mx5/pm.c b/arch/arm/mach-mx5/pm.c index 7df675391c76..c2b10ce24502 100644 --- a/arch/arm/mach-mx5/pm.c +++ b/arch/arm/mach-mx5/pm.c @@ -69,6 +69,29 @@ void *suspend_iram_base; void (*suspend_in_iram)(void *sdclk_iomux_addr) = NULL; void __iomem *suspend_param1; +#define TZIC_WAKEUP0_OFFSET 0x0E00 +#define TZIC_WAKEUP1_OFFSET 0x0E04 +#define TZIC_WAKEUP2_OFFSET 0x0E08 +#define TZIC_WAKEUP3_OFFSET 0x0E0C +#define GPIO7_0_11_IRQ_BIT (0x1<<11) + +static void mx53_smd_loco_irq_wake_fixup(void) +{ + void __iomem *tzic_base; + tzic_base = ioremap(MX53_TZIC_BASE_ADDR, SZ_4K); + if (NULL == tzic_base) { + pr_err("fail to map MX53_TZIC_BASE_ADDR\n"); + return; + } + __raw_writel(0, tzic_base + TZIC_WAKEUP0_OFFSET); + __raw_writel(0, tzic_base + TZIC_WAKEUP1_OFFSET); + __raw_writel(0, tzic_base + TZIC_WAKEUP2_OFFSET); + /* only enable irq wakeup for da9053 */ + __raw_writel(GPIO7_0_11_IRQ_BIT, tzic_base + TZIC_WAKEUP3_OFFSET); + iounmap(tzic_base); + pr_debug("only da9053 irq is wakeup-enabled\n"); +} + static int mx5_suspend_enter(suspend_state_t state) { if (gpc_dvfs_clk == NULL) @@ -95,8 +118,10 @@ static int mx5_suspend_enter(suspend_state_t state) if (cpu_is_mx51() || cpu_is_mx53()) { if (machine_is_mx53_smd() || - machine_is_mx53_loco()) + machine_is_mx53_loco()) { + mx53_smd_loco_irq_wake_fixup(); da9053_suspend_cmd(); + } /* Run the suspend code from iRAM. */ suspend_in_iram(suspend_param1); |