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| author | Peng Fan <van.freenix@gmail.com> | 2016-08-11 06:02:46 (GMT) |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2016-10-04 13:41:00 (GMT) |
| commit | b4714616a09a394f12a1103af14006cee250f516 (patch) | |
| tree | 69dcc524d1d98af9901f9bce0781e1dd4764401f /arch/arm/cpu | |
| parent | 6615da4da36d1f0564adeb1b318e14532c3b1f3e (diff) | |
| download | u-boot-fsl-qoriq-b4714616a09a394f12a1103af14006cee250f516.tar.xz | |
imx: mx6ull: adjust POR_B setting for i.MX6ULL
Adjust POR_B settings on i.MX6ULL according to IC 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: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Cc: Stefano Babic <sbabic@denx.de>
Diffstat (limited to 'arch/arm/cpu')
| -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 3b56a95..ff1c4f4 100644 --- a/arch/arm/cpu/armv7/mx6/soc.c +++ b/arch/arm/cpu/armv7/mx6/soc.c @@ -366,6 +366,20 @@ int arch_cpu_init(void) writel(0x0000b8a0, IOMUXC_BASE_ADDR + 0x29c); } + if (is_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(); |