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[U-Boot,3/6] mx6: soc: Set the VDDSOC at 1.175 V

Message ID 1387422989-15307-3-git-send-email-festevam@gmail.com
State Changes Requested
Delegated to: Stefano Babic
Headers show

Commit Message

Fabio Estevam Dec. 19, 2013, 3:16 a.m. UTC 
From: Fabio Estevam <fabio.estevam@freescale.com>

mx6 datasheet specifies that the minimum VDDSOC at 792 MHz is 1.15 V.
Add a 25 mV margin and set it to 1.175V.

This also matches the VDDSOC voltages for 792MHz operation that the kernel configures:
http://git.freescale.com/git/cgit.cgi/imx/linux-2.6-imx.git/tree/arch/arm/mach-mx6/cpu_op-mx6.c?h=imx_3.0.35_4.1.0

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
---
 arch/arm/cpu/armv7/mx6/soc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox

Patch

diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c
index 13b9e36..0136eb0 100644
--- a/arch/arm/cpu/armv7/mx6/soc.c
+++ b/arch/arm/cpu/armv7/mx6/soc.c
@@ -151,7 +151,7 @@  int arch_cpu_init(void)
 {
 	init_aips();
 
-	set_vddsoc(1200);	/* Set VDDSOC to 1.2V */
+	set_vddsoc(1175);	/* Set VDDSOC to 1.175V */
 
 	imx_set_wdog_powerdown(false); /* Disable PDE bit of WMCR register */