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| author | Bai Ping <ping.bai@nxp.com> | 2016-06-08 14:50:04 +0800 |
|---|---|---|
| committer | Bai Ping <ping.bai@nxp.com> | 2016-06-08 15:25:01 +0800 |
| commit | 91703d0672342145da32d4e1bc1f42436dbae6cf (patch) | |
| tree | bab8e8724cc02489a2dfbb2b40ed94dfed46df9c | |
| parent | c5dc9e64ff56761f8742c47cc1975d2d48b0cf17 (diff) | |
| download | u-boot-imx-91703d0672342145da32d4e1bc1f42436dbae6cf.zip u-boot-imx-91703d0672342145da32d4e1bc1f42436dbae6cf.tar.gz u-boot-imx-91703d0672342145da32d4e1bc1f42436dbae6cf.tar.bz2 | |
MLK-12894 imx6ull: adjust the ldo 1.2v bandgap voltage on i.mx6ull
Per to design team, on i.MX6UL, the LDO 1.2V bandgap voltage
is 30mV higher, so we need to adjust the REFTOP_VBGADJ(anatop MISC0
bit[6:4]) setting to 2b'110.
Signed-off-by: Bai Ping <ping.bai@nxp.com>
| -rw-r--r-- | arch/arm/cpu/armv7/mx6/soc.c | 6 | ||||
| -rw-r--r-- | arch/arm/include/asm/arch-mx6/crm_regs.h | 1 |
2 files changed, 7 insertions, 0 deletions
diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c index d54b581..1f3e145 100644 --- a/arch/arm/cpu/armv7/mx6/soc.c +++ b/arch/arm/cpu/armv7/mx6/soc.c @@ -324,6 +324,12 @@ static void init_bandgap(void) * be set. */ writel(BM_ANADIG_ANA_MISC0_REFTOP_SELBIASOFF, &anatop->ana_misc0_set); + /* + * On i.MX6ULL, the LDO 1.2V bandgap voltage is 30mV higher. so set + * VBGADJ bits to 2b'110 to adjust it. + */ + if (is_cpu_type(MXC_CPU_MX6ULL)) + writel(BM_ANADIG_ANA_MISC0_REFTOP_VBGADJ, &anatop->ana_misc0_set); } diff --git a/arch/arm/include/asm/arch-mx6/crm_regs.h b/arch/arm/include/asm/arch-mx6/crm_regs.h index 0999055..bc4f39e 100644 --- a/arch/arm/include/asm/arch-mx6/crm_regs.h +++ b/arch/arm/include/asm/arch-mx6/crm_regs.h @@ -1272,6 +1272,7 @@ struct mxc_ccm_reg { (((v) << 0) & BM_ANADIG_PFD_528_PFD0_FRAC) #define BM_ANADIG_ANA_MISC0_REFTOP_SELBIASOFF 0x00000008 +#define BM_ANADIG_ANA_MISC0_REFTOP_VBGADJ 0x60 #define BM_PMU_MISC2_AUDIO_DIV_MSB (1 << 23) #define BP_PMU_MISC2_AUDIO_DIV_MSB 23 |