From 23e9f0723e48615332119de4f4ec7a833a282628 Mon Sep 17 00:00:00 2001 From: Aneesh V Date: Mon, 21 Nov 2011 23:39:05 +0000 Subject: [PATCH] omap4: fix IO setting The value from TRIM is not working for some 4430 silicons. So, override with hw team recommended value. However, for 4460 TRIM value shall be used as long as the part is trimmed This fixes boot problem on some OMAP4430 ES2.0 Panda boards out there. Cc: Steve Sakoman Signed-off-by: Aneesh V --- arch/arm/cpu/armv7/omap4/hwinit.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/arch/arm/cpu/armv7/omap4/hwinit.c b/arch/arm/cpu/armv7/omap4/hwinit.c index cd1451a..37a86b4 100644 --- a/arch/arm/cpu/armv7/omap4/hwinit.c +++ b/arch/arm/cpu/armv7/omap4/hwinit.c @@ -105,7 +105,12 @@ void do_io_settings(void) &ctrl->control_ldosram_core_voltage_ctrl); } - if (!readl(&ctrl->control_efuse_1)) + /* + * Over-ride the register + * i. unconditionally for all 4430 + * ii. only if un-trimmed for 4460 + */ + if ((omap4_rev < OMAP4460_ES1_0) || !readl(&ctrl->control_efuse_1)) writel(CONTROL_EFUSE_1_OVERRIDE, &ctrl->control_efuse_1); if (!readl(&ctrl->control_efuse_2)) -- 2.7.4