diff options
Diffstat (limited to 'arch/arm/cpu/armv7/mx6/soc.c')
| -rw-r--r-- | arch/arm/cpu/armv7/mx6/soc.c | 57 |
1 files changed, 45 insertions, 12 deletions
diff --git a/arch/arm/cpu/armv7/mx6/soc.c b/arch/arm/cpu/armv7/mx6/soc.c index 5b2a051..7b53bfd 100644 --- a/arch/arm/cpu/armv7/mx6/soc.c +++ b/arch/arm/cpu/armv7/mx6/soc.c @@ -126,7 +126,7 @@ u32 get_cpu_speed_grade_hz(void) val >>= OCOTP_CFG3_SPEED_SHIFT; val &= 0x3; - if (is_mx6ul()) { + if (is_mx6ul() || is_mx6ull()) { if (val == OCOTP_CFG3_SPEED_528MHZ) return 528000000; else if (val == OCOTP_CFG3_SPEED_696MHZ) @@ -293,7 +293,7 @@ static void clear_mmdc_ch_mask(void) reg = readl(&mxc_ccm->ccdr); /* Clear MMDC channel mask */ - if (is_mx6sx() || is_mx6ul() || is_mx6sl()) + if (is_mx6sx() || is_mx6ul() || is_mx6ull() || is_mx6sl()) reg &= ~(MXC_CCM_CCDR_MMDC_CH1_HS_MASK); else reg &= ~(MXC_CCM_CCDR_MMDC_CH1_HS_MASK | MXC_CCM_CCDR_MMDC_CH0_HS_MASK); @@ -314,6 +314,12 @@ 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_mx6ull()) + writel(BM_ANADIG_ANA_MISC0_REFTOP_VBGADJ, &anatop->ana_misc0_set); } @@ -343,7 +349,7 @@ int arch_cpu_init(void) */ init_bandgap(); - if (!IS_ENABLED(CONFIG_MX6UL)) { + if (!is_mx6ul() && !is_mx6ull()) { /* * When low freq boot is enabled, ROM will not set AHB * freq, so we need to ensure AHB freq is 132MHz in such @@ -356,14 +362,41 @@ int arch_cpu_init(void) set_ahb_rate(132000000); } - if (IS_ENABLED(CONFIG_MX6UL) && is_soc_rev(CHIP_REV_1_0) == 0) { + if (is_mx6ul()) { + if (is_soc_rev(CHIP_REV_1_0) == 0) { + /* + * According to the design team's requirement on + * i.MX6UL,the PMIC_STBY_REQ PAD should be configured + * as open drain 100K (0x0000b8a0). + * Only exists on TO1.0 + */ + writel(0x0000b8a0, IOMUXC_BASE_ADDR + 0x29c); + } else { + /* + * From TO1.1, SNVS adds internal pull up control + * for POR_B, the register filed is GPBIT[1:0], + * after system boot up, it can be set to 2b'01 + * to disable internal pull up.It can save about + * 30uA power in SNVS mode. + */ + writel((readl(MX6UL_SNVS_LP_BASE_ADDR + 0x10) & + (~0x1400)) | 0x400, + MX6UL_SNVS_LP_BASE_ADDR + 0x10); + } + } + + if (is_mx6ull()) { /* - * According to the design team's requirement on i.MX6UL, - * the PMIC_STBY_REQ PAD should be configured as open - * drain 100K (0x0000b8a0). - * Only exists on TO1.0 + * 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(0x0000b8a0, IOMUXC_BASE_ADDR + 0x29c); + writel(readl(MX6UL_SNVS_LP_BASE_ADDR) | + 0x3, MX6UL_SNVS_LP_BASE_ADDR); } /* Set perclk to source from OSC 24MHz */ @@ -459,7 +492,7 @@ void imx_get_mac_from_fuse(int dev_id, unsigned char *mac) struct fuse_bank4_regs *fuse = (struct fuse_bank4_regs *)bank->fuse_regs; - if ((is_mx6sx() || is_mx6ul()) && dev_id == 1) { + if ((is_mx6sx() || is_mx6ul() || is_mx6ull()) && dev_id == 1) { u32 value = readl(&fuse->mac_addr2); mac[0] = value >> 24 ; mac[1] = value >> 16 ; @@ -494,7 +527,7 @@ void imx_get_mac_from_fuse(int dev_id, unsigned char *mac) const struct boot_mode soc_boot_modes[] = { {"normal", MAKE_CFGVAL(0x00, 0x00, 0x00, 0x00)}, /* reserved value should start rom usb */ - {"usb", MAKE_CFGVAL(0x01, 0x00, 0x00, 0x00)}, + {"usb", MAKE_CFGVAL(0x10, 0x00, 0x00, 0x00)}, {"sata", MAKE_CFGVAL(0x20, 0x00, 0x00, 0x00)}, {"ecspi1:0", MAKE_CFGVAL(0x30, 0x00, 0x00, 0x08)}, {"ecspi1:1", MAKE_CFGVAL(0x30, 0x00, 0x00, 0x18)}, @@ -523,7 +556,7 @@ void s_init(void) u32 mask528; u32 reg, periph1, periph2; - if (is_mx6sx() || is_mx6ul()) + if (is_mx6sx() || is_mx6ul() || is_mx6ull()) return; /* Due to hardware limitation, on MX6Q we need to gate/ungate all PFDs |