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| author | Robin Gong <b38343@freescale.com> | 2014-08-07 18:09:44 +0800 |
|---|---|---|
| committer | Robin Gong <b38343@freescale.com> | 2014-08-26 14:38:41 +0800 |
| commit | 404fd02e96d33840f58f83f88815e2a259cdc532 (patch) | |
| tree | 66e809b112bf266ed5d305e72049605e958a0ca4 /arch/arm/include | |
| parent | 53118db42d201d36ca9067b4bb0e2702399e100b (diff) | |
| download | u-boot-imx-404fd02e96d33840f58f83f88815e2a259cdc532.zip u-boot-imx-404fd02e96d33840f58f83f88815e2a259cdc532.tar.gz u-boot-imx-404fd02e96d33840f58f83f88815e2a259cdc532.tar.bz2 | |
ENGR00326277-1: imx6: ldo_bypass: fix VDDARM voltage setting violate datasheet
Current only set VDDARM_IN@1.175V/VDDSOC_IN@1.175V before ldo bypass switch.
So untile ldo bypass switch happened, these voltage setting is set in ldo-enable
mode. But in datasheet, we need 1.15V + 125mV = 1.275V for VDDARM_IN. We need
to downgrade cpufreq to 400Mhz and restore after ldo bypass mode switch.
Signed-off-by: Robin Gong <b38343@freescale.com>
Diffstat (limited to 'arch/arm/include')
| -rw-r--r-- | arch/arm/include/asm/arch-mx6/sys_proto.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/arm/include/asm/arch-mx6/sys_proto.h b/arch/arm/include/asm/arch-mx6/sys_proto.h index f358c36..c8e5136 100644 --- a/arch/arm/include/asm/arch-mx6/sys_proto.h +++ b/arch/arm/include/asm/arch-mx6/sys_proto.h @@ -26,8 +26,10 @@ unsigned imx_ddr_size(void); #ifdef CONFIG_LDO_BYPASS_CHECK int check_ldo_bypass(void); int check_1_2G(void); -void set_anatop_bypass(void); +int set_anatop_bypass(void); void ldo_mode_set(int ldo_bypass); +void prep_anatop_bypass(void); +void finish_anatop_bypass(void); #endif #ifdef CONFIG_MX6SX |