diff options
Diffstat (limited to 'arch/arm/mach-imx')
| -rw-r--r-- | arch/arm/mach-imx/imx8m/soc.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-imx/mx6/Kconfig | 1 | ||||
| -rw-r--r-- | arch/arm/mach-imx/mx6/soc.c | 43 | ||||
| -rw-r--r-- | arch/arm/mach-imx/mx7ulp/Kconfig | 5 | ||||
| -rw-r--r-- | arch/arm/mach-imx/mx7ulp/scg.c | 61 | ||||
| -rw-r--r-- | arch/arm/mach-imx/mx7ulp/soc.c | 78 |
6 files changed, 121 insertions, 68 deletions
diff --git a/arch/arm/mach-imx/imx8m/soc.c b/arch/arm/mach-imx/imx8m/soc.c index 181c715be3..5ce5a180e8 100644 --- a/arch/arm/mach-imx/imx8m/soc.c +++ b/arch/arm/mach-imx/imx8m/soc.c @@ -217,6 +217,7 @@ u32 get_cpu_rev(void) readl((void __iomem *)ROM_VERSION_A0); if (rom_version != CHIP_REV_1_0) { rom_version = readl((void __iomem *)ROM_VERSION_B0); + rom_version &= 0xff; if (rom_version == CHIP_REV_2_0) reg = CHIP_REV_2_0; } diff --git a/arch/arm/mach-imx/mx6/Kconfig b/arch/arm/mach-imx/mx6/Kconfig index 607210520f..ef816a24ff 100644 --- a/arch/arm/mach-imx/mx6/Kconfig +++ b/arch/arm/mach-imx/mx6/Kconfig @@ -558,6 +558,7 @@ config TARGET_SOFTING_VINING_2000 select DM select DM_THERMAL select MX6SX + select SUPPORT_SPL imply CMD_DM config TARGET_WANDBOARD diff --git a/arch/arm/mach-imx/mx6/soc.c b/arch/arm/mach-imx/mx6/soc.c index 926718b49c..b8aaf3ef01 100644 --- a/arch/arm/mach-imx/mx6/soc.c +++ b/arch/arm/mach-imx/mx6/soc.c @@ -24,12 +24,6 @@ #include <imx_thermal.h> #include <mmc.h> -enum ldo_reg { - LDO_ARM, - LDO_SOC, - LDO_PU, -}; - struct scu_regs { u32 ctrl; u32 config; @@ -255,7 +249,7 @@ static void clear_ldo_ramp(void) * Possible values are from 0.725V to 1.450V in steps of * 0.025V (25mV). */ -static int set_ldo_voltage(enum ldo_reg ldo, u32 mv) +int set_ldo_voltage(enum ldo_reg ldo, u32 mv) { struct anatop_regs *anatop = (struct anatop_regs *)ANATOP_BASE_ADDR; u32 val, step, old, reg = readl(&anatop->reg_core); @@ -375,6 +369,37 @@ static void init_bandgap(void) } } +#if defined(CONFIG_MX6Q) || defined(CONFIG_MX6QDL) +static void noc_setup(void) +{ + enable_ipu_clock(); + + writel(0x80000201, 0xbb0608); + /* Bypass IPU1 QoS generator */ + writel(0x00000002, 0x00bb048c); + /* Bypass IPU2 QoS generator */ + writel(0x00000002, 0x00bb050c); + /* Bandwidth THR for of PRE0 */ + writel(0x00000200, 0x00bb0690); + /* Bandwidth THR for of PRE1 */ + writel(0x00000200, 0x00bb0710); + /* Bandwidth THR for of PRE2 */ + writel(0x00000200, 0x00bb0790); + /* Bandwidth THR for of PRE3 */ + writel(0x00000200, 0x00bb0810); + /* Saturation THR for of PRE0 */ + writel(0x00000010, 0x00bb0694); + /* Saturation THR for of PRE1 */ + writel(0x00000010, 0x00bb0714); + /* Saturation THR for of PRE2 */ + writel(0x00000010, 0x00bb0794); + /* Saturation THR for of PRE */ + writel(0x00000010, 0x00bb0814); + + disable_ipu_clock(); +} +#endif + int arch_cpu_init(void) { struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR; @@ -452,6 +477,10 @@ int arch_cpu_init(void) init_src(); +#if defined(CONFIG_MX6Q) || defined(CONFIG_MX6QDL) + if (is_mx6dqp()) + noc_setup(); +#endif return 0; } diff --git a/arch/arm/mach-imx/mx7ulp/Kconfig b/arch/arm/mach-imx/mx7ulp/Kconfig index ed5f0aeb2d..138c58363f 100644 --- a/arch/arm/mach-imx/mx7ulp/Kconfig +++ b/arch/arm/mach-imx/mx7ulp/Kconfig @@ -3,6 +3,11 @@ if ARCH_MX7ULP config SYS_SOC default "mx7ulp" +config LDO_ENABLED_MODE + bool "i.MX7ULP LDO Enabled Mode" + help + Select this option to enable the PMC1 LDO. + config MX7ULP bool diff --git a/arch/arm/mach-imx/mx7ulp/scg.c b/arch/arm/mach-imx/mx7ulp/scg.c index 819c90af6c..c7bb7a1c66 100644 --- a/arch/arm/mach-imx/mx7ulp/scg.c +++ b/arch/arm/mach-imx/mx7ulp/scg.c @@ -949,67 +949,6 @@ void scg_a7_ddrclk_init(void) /* Clock source is System OSC <<0 */ #define SCG1_APLL_CFG_CLKSRC_NUM ((0x0) << SCG_PLL_CFG_CLKSRC_SHIFT) -/* - * A7 APLL = 24MHz / 1 * 22 / 1 / 1 = 528MHz, - * system PLL is sourced from APLL, - * APLL clock source is system OSC (24MHz) - */ -#define SCG1_APLL_CFG_NUM_24M_OSC (SCG1_APLL_CFG_POSTDIV2_NUM | \ - SCG1_APLL_CFG_POSTDIV1_NUM | \ - (22 << SCG_PLL_CFG_MULT_SHIFT) | \ - SCG1_APLL_CFG_PFDSEL_NUM | \ - SCG1_APLL_CFG_PREDIV_NUM | \ - SCG1_APLL_CFG_BYPASS_NUM | \ - SCG1_APLL_CFG_PLLSEL_NUM | \ - SCG1_APLL_CFG_CLKSRC_NUM) - -/* PFD0 Freq = A7 APLL(528MHz) * 18 / 27 = 352MHz */ -#define SCG1_APLL_PFD0_FRAC_NUM (27) - - -void scg_a7_apll_init(void) -{ - u32 val = 0; - - /* Disable A7 Auxiliary PLL */ - val = readl(&scg1_regs->apllcsr); - val &= ~SCG_APLL_CSR_APLLEN_MASK; - writel(val, &scg1_regs->apllcsr); - - /* Gate off A7 APLL PFD0 ~ PDF4 */ - val = readl(&scg1_regs->apllpfd); - val |= 0x80808080; - writel(val, &scg1_regs->apllpfd); - - /* ================ A7 APLL Configuration Start ============== */ - /* Configure A7 Auxiliary PLL */ - writel(SCG1_APLL_CFG_NUM_24M_OSC, &scg1_regs->apllcfg); - - /* Enable A7 Auxiliary PLL */ - val = readl(&scg1_regs->apllcsr); - val |= SCG_APLL_CSR_APLLEN_MASK; - writel(val, &scg1_regs->apllcsr); - - /* Wait for A7 APLL clock ready */ - while (!(readl(&scg1_regs->apllcsr) & SCG_APLL_CSR_APLLVLD_MASK)) - ; - - /* Configure A7 APLL PFD0 */ - val = readl(&scg1_regs->apllpfd); - val &= ~SCG_PLL_PFD0_FRAC_MASK; - val |= SCG1_APLL_PFD0_FRAC_NUM; - writel(val, &scg1_regs->apllpfd); - - /* Un-gate A7 APLL PFD0 */ - val = readl(&scg1_regs->apllpfd); - val &= ~SCG_PLL_PFD0_GATE_MASK; - writel(val, &scg1_regs->apllpfd); - - /* Wait for A7 APLL PFD0 clock being valid */ - while (!(readl(&scg1_regs->apllpfd) & SCG_PLL_PFD0_VALID_MASK)) - ; -} - /* SCG1(A7) FIRC DIV configurations */ /* Disable FIRC DIV3 */ #define SCG1_FIRCDIV_DIV3_NUM ((0x0) << SCG_FIRCDIV_DIV3_SHIFT) diff --git a/arch/arm/mach-imx/mx7ulp/soc.c b/arch/arm/mach-imx/mx7ulp/soc.c index 4b6014e724..8345b01398 100644 --- a/arch/arm/mach-imx/mx7ulp/soc.c +++ b/arch/arm/mach-imx/mx7ulp/soc.c @@ -10,6 +10,22 @@ #include <asm/mach-imx/boot_mode.h> #include <asm/mach-imx/hab.h> +#define PMC0_BASE_ADDR 0x410a1000 +#define PMC0_CTRL 0x28 +#define PMC0_CTRL_LDOEN BIT(31) +#define PMC0_CTRL_LDOOKDIS BIT(30) +#define PMC0_CTRL_PMC1ON BIT(24) +#define PMC1_BASE_ADDR 0x40400000 +#define PMC1_RUN 0x8 +#define PMC1_STOP 0x10 +#define PMC1_VLPS 0x14 +#define PMC1_LDOVL_SHIFT 16 +#define PMC1_LDOVL_MASK (0x3f << PMC1_LDOVL_SHIFT) +#define PMC1_LDOVL_900 0x1e +#define PMC1_LDOVL_950 0x23 +#define PMC1_STATUS 0x20 +#define PMC1_STATUS_LDOVLF BIT(8) + static char *get_reset_cause(char *); #if defined(CONFIG_IMX_HAB) @@ -101,6 +117,44 @@ void init_wdog(void) disable_wdog(WDG2_RBASE); } +#if defined(CONFIG_LDO_ENABLED_MODE) +static void init_ldo_mode(void) +{ + unsigned int reg; + + /* Set LDOOKDIS */ + setbits_le32(PMC0_BASE_ADDR + PMC0_CTRL, PMC0_CTRL_LDOOKDIS); + + /* Set LDOVL to 0.95V in PMC1_RUN */ + reg = readl(PMC1_BASE_ADDR + PMC1_RUN); + reg &= ~PMC1_LDOVL_MASK; + reg |= (PMC1_LDOVL_950 << PMC1_LDOVL_SHIFT); + writel(PMC1_BASE_ADDR + PMC1_RUN, reg); + + /* Wait for LDOVLF to be cleared */ + reg = readl(PMC1_BASE_ADDR + PMC1_STATUS); + while (reg & PMC1_STATUS_LDOVLF) + ; + + /* Set LDOVL to 0.95V in PMC1_STOP */ + reg = readl(PMC1_BASE_ADDR + PMC1_STOP); + reg &= ~PMC1_LDOVL_MASK; + reg |= (PMC1_LDOVL_950 << PMC1_LDOVL_SHIFT); + writel(PMC1_BASE_ADDR + PMC1_STOP, reg); + + /* Set LDOVL to 0.90V in PMC1_VLPS */ + reg = readl(PMC1_BASE_ADDR + PMC1_VLPS); + reg &= ~PMC1_LDOVL_MASK; + reg |= (PMC1_LDOVL_900 << PMC1_LDOVL_SHIFT); + writel(PMC1_BASE_ADDR + PMC1_VLPS, reg); + + /* Set LDOEN bit */ + setbits_le32(PMC0_BASE_ADDR + PMC0_CTRL, PMC0_CTRL_LDOEN); + + /* Set the PMC1ON bit */ + setbits_le32(PMC0_BASE_ADDR + PMC0_CTRL, PMC0_CTRL_PMC1ON); +} +#endif void s_init(void) { @@ -114,6 +168,10 @@ void s_init(void) /* enable dumb pmic */ writel((readl(SNVS_LP_LPCR) | SNVS_LPCR_DPEN), SNVS_LP_LPCR); } + +#if defined(CONFIG_LDO_ENABLED_MODE) + init_ldo_mode(); +#endif return; } @@ -132,6 +190,21 @@ const char *get_imx_type(u32 imxtype) return "7ULP"; } +#define PMC0_BASE_ADDR 0x410a1000 +#define PMC0_CTRL 0x28 +#define PMC0_CTRL_LDOEN BIT(31) + +static bool ldo_mode_is_enabled(void) +{ + unsigned int reg; + + reg = readl(PMC0_BASE_ADDR + PMC0_CTRL); + if (reg & PMC0_CTRL_LDOEN) + return true; + else + return false; +} + int print_cpuinfo(void) { u32 cpurev; @@ -160,6 +233,11 @@ int print_cpuinfo(void) break; } + if (ldo_mode_is_enabled()) + printf("PMC1: LDO enabled mode\n"); + else + printf("PMC1: LDO bypass mode\n"); + return 0; } #endif |