mx6: soc: Set the VDDSOC at 1.175 V

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>

diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c
index 486b870312c179c789cfac42a0fb9db3bf5804e5..3e095aab848d5bc96806c085cdb69a8f987184a4 100644 (file)
--- 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 */