From a89300338a0d0c43ff21c50d793782c310c882ee Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Mon, 30 Jan 2012 14:05:39 +0000 Subject: i.MX28: Make the stabilization delays shorter MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Cut down the VDDIO/VDDA regulator stabilization delays to 500 uS. That should be enough according to the datasheet and bootlets. Signed-off-by: Marek Vasut Cc: Wolfgang Denk Cc: Detlev Zundel Cc: Stefano Babic Cc: Robert Deliën Cc: Fabio Estevam Cc: Matthias Fuchs --- arch/arm/cpu/arm926ejs/mx28/spl_power_init.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'arch/arm/cpu/arm926ejs/mx28/spl_power_init.c') diff --git a/arch/arm/cpu/arm926ejs/mx28/spl_power_init.c b/arch/arm/cpu/arm926ejs/mx28/spl_power_init.c index 271da8d..aa4117d 100644 --- a/arch/arm/cpu/arm926ejs/mx28/spl_power_init.c +++ b/arch/arm/cpu/arm926ejs/mx28/spl_power_init.c @@ -729,7 +729,7 @@ void mx28_power_set_vddio(uint32_t new_target, uint32_t new_brownout) if (powered_by_linreg || (readl(&power_regs->hw_power_sts) & POWER_STS_VDD5V_GT_VDDIO)) - early_delay(1500); + early_delay(500); else { while (!(readl(&power_regs->hw_power_sts) & POWER_STS_DC_OK)) @@ -766,7 +766,7 @@ void mx28_power_set_vddio(uint32_t new_target, uint32_t new_brownout) if (powered_by_linreg || (readl(&power_regs->hw_power_sts) & POWER_STS_VDD5V_GT_VDDIO)) - early_delay(1500); + early_delay(500); else { while (!(readl(&power_regs->hw_power_sts) & POWER_STS_DC_OK)) @@ -826,7 +826,7 @@ void mx28_power_set_vddd(uint32_t new_target, uint32_t new_brownout) if (powered_by_linreg || (readl(&power_regs->hw_power_sts) & POWER_STS_VDD5V_GT_VDDIO)) - early_delay(1500); + early_delay(500); else { while (!(readl(&power_regs->hw_power_sts) & POWER_STS_DC_OK)) @@ -863,7 +863,7 @@ void mx28_power_set_vddd(uint32_t new_target, uint32_t new_brownout) if (powered_by_linreg || (readl(&power_regs->hw_power_sts) & POWER_STS_VDD5V_GT_VDDIO)) - early_delay(1500); + early_delay(500); else { while (!(readl(&power_regs->hw_power_sts) & POWER_STS_DC_OK)) -- cgit v1.1