MLK-11491 ARM: imx: dis-connect vddhigh_in and vddsnvs_in for imx6ul

To achieve lower power number in low power idle, on the boards
which has higher vddhigh_in than vddsnvs_in, need to dis-connect
vddhigh_in and vddsnvs_in internally to make vddhigh_in's power
low enough to meet the design target.

Signed-off-by: Anson Huang <b20788@freescale.com>

diff --git a/arch/arm/mach-imx/imx6ul_low_power_idle.S b/arch/arm/mach-imx/imx6ul_low_power_idle.S
index 5db724e..26bb83d 100644 (file)
--- a/arch/arm/mach-imx/imx6ul_low_power_idle.S
+++ b/arch/arm/mach-imx/imx6ul_low_power_idle.S
@@ -310,6 +310,11 @@
        orr     r7, r7, #0x6000
        str     r7, [r10, #0x150]
 
+       /* disconnect vdd_high_in and vdd_snvs_in */
+       ldr     r7, [r10, #0x150]
+       orr     r7, r7, #0x1000
+       str     r7, [r10, #0x150]
+
        .endm
 
        .macro anatop_exit_idle