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| author | Anson Huang <Anson.Huang@nxp.com> | 2016-04-14 22:49:35 +0800 |
|---|---|---|
| committer | Anson Huang <Anson.Huang@nxp.com> | 2016-04-15 00:33:26 +0800 |
| commit | c5f3ebc2b4a3d01f2a923776450661787dd0aee3 (patch) | |
| tree | 9c208f5ef5ac127b315ad5424dfe05265b436723 | |
| parent | 772af34b1216acc8e6a1a3faf43fef7c90b26a2f (diff) | |
| download | u-boot-imx-c5f3ebc2b4a3d01f2a923776450661787dd0aee3.zip u-boot-imx-c5f3ebc2b4a3d01f2a923776450661787dd0aee3.tar.gz u-boot-imx-c5f3ebc2b4a3d01f2a923776450661787dd0aee3.tar.bz2 | |
MLK-12658 imx: adjust POR_B setting on i.MX6ULL
Adjust POR_B settings on i.MX6ULL according to design
team's suggestion:
2'b00 : always PUP100K
2'b01 : PUP100K when PMIC_ON_REQ || SOC_NOT_FAIL
2'b10 : always disable PUP100K
2'b11 : PDN100K when SOC_FAIL, PUP100K when SOC_NOT_FAIL -- recommended setting
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
| -rw-r--r-- | arch/arm/cpu/armv7/mx6/soc.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c index a1d7721..ee832a3 100644 --- a/arch/arm/cpu/armv7/mx6/soc.c +++ b/arch/arm/cpu/armv7/mx6/soc.c @@ -490,6 +490,20 @@ int arch_cpu_init(void) } } + if (is_cpu_type(MXC_CPU_MX6ULL)) { + /* + * GPBIT[1:0] is suggested to set to 2'b11: + * 2'b00 : always PUP100K + * 2'b01 : PUP100K when PMIC_ON_REQ or SOC_NOT_FAIL + * 2'b10 : always disable PUP100K + * 2'b11 : PDN100K when SOC_FAIL, PUP100K when SOC_NOT_FAIL + * register offset is different from i.MX6UL, since + * i.MX6UL is fixed by ECO. + */ + writel(readl(MX6UL_SNVS_LP_BASE_ADDR) | + 0x3, MX6UL_SNVS_LP_BASE_ADDR); + } + /* Set perclk to source from OSC 24MHz */ #if defined(CONFIG_MX6SL) set_preclk_from_osc(); |