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| author | Anson Huang <Anson.Huang@nxp.com> | 2016-04-15 00:41:14 +0800 |
|---|---|---|
| committer | Anson Huang <Anson.Huang@nxp.com> | 2016-04-15 18:27:11 +0800 |
| commit | 866435866402ad740b09efccf79d19e420f91114 (patch) | |
| tree | 369b5c9e0b7659e7069246bb35a2cb1401b1bbce /arch/arm | |
| parent | a9289e4c1bfa8af172a77f24410fa0fc4276cf61 (diff) | |
| download | u-boot-imx-866435866402ad740b09efccf79d19e420f91114.zip u-boot-imx-866435866402ad740b09efccf79d19e420f91114.tar.gz u-boot-imx-866435866402ad740b09efccf79d19e420f91114.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>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/cpu/armv7/mx6/soc.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c index 71d3fc4..29e1043 100644 --- a/arch/arm/cpu/armv7/mx6/soc.c +++ b/arch/arm/cpu/armv7/mx6/soc.c @@ -489,6 +489,19 @@ int arch_cpu_init(void) } #endif +#ifdef CONFIG_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(SNVS_LP_BASE_ADDR) | 0x3, SNVS_LP_BASE_ADDR); +#endif + /* Set perclk to source from OSC 24MHz */ #if defined(CONFIG_MX6SL) set_preclk_from_osc(); |