From 48ddafd9a42284457ac22d42572b88dbdb136fdd Mon Sep 17 00:00:00 2001 From: Ye Li Date: Fri, 19 Mar 2021 15:56:55 +0800 Subject: [PATCH] imx8mm_evk: Switch to new imx8mm evk board Update PMIC to use PCA9540, the legacy board not supported by NXP Signed-off-by: Ye Li --- arch/arm/dts/imx8mm-evk-u-boot.dtsi | 4 +- arch/arm/dts/imx8mm-evk.dtsi | 127 +++++++++++++++++++----------------- board/freescale/imx8mm_evk/spl.c | 33 +++++----- configs/imx8mm_evk_defconfig | 2 +- 4 files changed, 86 insertions(+), 80 deletions(-) diff --git a/arch/arm/dts/imx8mm-evk-u-boot.dtsi b/arch/arm/dts/imx8mm-evk-u-boot.dtsi index e843a56..7f48912 100644 --- a/arch/arm/dts/imx8mm-evk-u-boot.dtsi +++ b/arch/arm/dts/imx8mm-evk-u-boot.dtsi @@ -114,11 +114,11 @@ u-boot,dm-spl; }; -&{/soc@0/bus@30800000/i2c@30a20000/pmic@4b} { +&{/soc@0/bus@30800000/i2c@30a20000/pca9450@25} { u-boot,dm-spl; }; -&{/soc@0/bus@30800000/i2c@30a20000/pmic@4b/regulators} { +&{/soc@0/bus@30800000/i2c@30a20000/pca9450@25/regulators} { u-boot,dm-spl; }; diff --git a/arch/arm/dts/imx8mm-evk.dtsi b/arch/arm/dts/imx8mm-evk.dtsi index 6518f08..60179e0 100644 --- a/arch/arm/dts/imx8mm-evk.dtsi +++ b/arch/arm/dts/imx8mm-evk.dtsi @@ -126,115 +126,120 @@ pinctrl-0 = <&pinctrl_i2c1>; status = "okay"; - pmic@4b { - compatible = "rohm,bd71847"; - reg = <0x4b>; - pinctrl-names = "default"; + pmic: pca9450@25 { + reg = <0x25>; + compatible = "nxp,pca9450a"; + /* PMIC PCA9450 PMIC_nINT GPIO1_IO3 */ pinctrl-0 = <&pinctrl_pmic>; - interrupt-parent = <&gpio1>; - interrupts = <3 IRQ_TYPE_LEVEL_LOW>; - rohm,reset-snvs-powered; - - #clock-cells = <0>; - clocks = <&osc_32k 0>; - clock-output-names = "clk-32k-out"; + gpio_intr = <&gpio1 3 GPIO_ACTIVE_LOW>; regulators { - buck1_reg: BUCK1 { - regulator-name = "buck1"; - regulator-min-microvolt = <700000>; - regulator-max-microvolt = <1300000>; + #address-cells = <1>; + #size-cells = <0>; + + pca9450,pmic-buck2-uses-i2c-dvs; + /* Run/Standby voltage */ + pca9450,pmic-buck2-dvs-voltage = <950000>, <850000>; + + buck1_reg: regulator@0 { + reg = <0>; + regulator-compatible = "buck1"; + regulator-min-microvolt = <600000>; + regulator-max-microvolt = <2187500>; regulator-boot-on; regulator-always-on; - regulator-ramp-delay = <1250>; + regulator-ramp-delay = <3125>; }; - buck2_reg: BUCK2 { - regulator-name = "buck2"; - regulator-min-microvolt = <700000>; - regulator-max-microvolt = <1300000>; + buck2_reg: regulator@1 { + reg = <1>; + regulator-compatible = "buck2"; + regulator-min-microvolt = <600000>; + regulator-max-microvolt = <2187500>; regulator-boot-on; regulator-always-on; - regulator-ramp-delay = <1250>; - rohm,dvs-run-voltage = <1000000>; - rohm,dvs-idle-voltage = <900000>; + regulator-ramp-delay = <3125>; }; - buck3_reg: BUCK3 { - // BUCK5 in datasheet - regulator-name = "buck3"; - regulator-min-microvolt = <700000>; - regulator-max-microvolt = <1350000>; + buck3_reg: regulator@2 { + reg = <2>; + regulator-compatible = "buck3"; + regulator-min-microvolt = <600000>; + regulator-max-microvolt = <2187500>; regulator-boot-on; regulator-always-on; }; - buck4_reg: BUCK4 { - // BUCK6 in datasheet - regulator-name = "buck4"; - regulator-min-microvolt = <3000000>; - regulator-max-microvolt = <3300000>; + buck4_reg: regulator@3 { + reg = <3>; + regulator-compatible = "buck4"; + regulator-min-microvolt = <600000>; + regulator-max-microvolt = <3400000>; regulator-boot-on; regulator-always-on; }; - buck5_reg: BUCK5 { - // BUCK7 in datasheet - regulator-name = "buck5"; - regulator-min-microvolt = <1605000>; - regulator-max-microvolt = <1995000>; + buck5_reg: regulator@4 { + reg = <4>; + regulator-compatible = "buck5"; + regulator-min-microvolt = <600000>; + regulator-max-microvolt = <3400000>; regulator-boot-on; regulator-always-on; }; - buck6_reg: BUCK6 { - // BUCK8 in datasheet - regulator-name = "buck6"; - regulator-min-microvolt = <800000>; - regulator-max-microvolt = <1400000>; + buck6_reg: regulator@5 { + reg = <5>; + regulator-compatible = "buck6"; + regulator-min-microvolt = <600000>; + regulator-max-microvolt = <3400000>; regulator-boot-on; regulator-always-on; }; - ldo1_reg: LDO1 { - regulator-name = "ldo1"; + ldo1_reg: regulator@6 { + reg = <6>; + regulator-compatible = "ldo1"; regulator-min-microvolt = <1600000>; regulator-max-microvolt = <3300000>; regulator-boot-on; regulator-always-on; }; - ldo2_reg: LDO2 { - regulator-name = "ldo2"; + ldo2_reg: regulator@7 { + reg = <7>; + regulator-compatible = "ldo2"; regulator-min-microvolt = <800000>; - regulator-max-microvolt = <900000>; + regulator-max-microvolt = <1150000>; regulator-boot-on; regulator-always-on; }; - ldo3_reg: LDO3 { - regulator-name = "ldo3"; - regulator-min-microvolt = <1800000>; + ldo3_reg: regulator@8 { + reg = <8>; + regulator-compatible = "ldo3"; + regulator-min-microvolt = <800000>; regulator-max-microvolt = <3300000>; regulator-boot-on; regulator-always-on; }; - ldo4_reg: LDO4 { - regulator-name = "ldo4"; - regulator-min-microvolt = <900000>; - regulator-max-microvolt = <1800000>; + ldo4_reg: regulator@9 { + reg = <9>; + regulator-compatible = "ldo4"; + regulator-min-microvolt = <800000>; + regulator-max-microvolt = <3300000>; regulator-boot-on; regulator-always-on; }; - ldo6_reg: LDO6 { - regulator-name = "ldo6"; - regulator-min-microvolt = <900000>; - regulator-max-microvolt = <1800000>; - regulator-boot-on; - regulator-always-on; + ldo5_reg: regulator@10 { + reg = <10>; + regulator-compatible = "ldo5"; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <3300000>; }; + }; }; }; diff --git a/board/freescale/imx8mm_evk/spl.c b/board/freescale/imx8mm_evk/spl.c index 64bc606..4ef7f6f 100644 --- a/board/freescale/imx8mm_evk/spl.c +++ b/board/freescale/imx8mm_evk/spl.c @@ -26,7 +26,7 @@ #include #include -#include +#include DECLARE_GLOBAL_DATA_PTR; @@ -94,7 +94,7 @@ static int power_init_board(void) struct udevice *dev; int ret; - ret = pmic_get("pmic@4b", &dev); + ret = pmic_get("pca9450@25", &dev); if (ret == -ENODEV) { puts("No pmic\n"); return 0; @@ -102,25 +102,26 @@ static int power_init_board(void) if (ret != 0) return ret; - /* decrease RESET key long push time from the default 10s to 10ms */ - pmic_reg_write(dev, BD718XX_PWRONCONFIG1, 0x0); + /* BUCKxOUT_DVS0/1 control BUCK123 output */ + pmic_reg_write(dev, PCA9450_BUCK123_DVS, 0x29); - /* unlock the PMIC regs */ - pmic_reg_write(dev, BD718XX_REGLOCK, 0x1); + /* Buck 1 DVS control through PMIC_STBY_REQ */ + pmic_reg_write(dev, PCA9450_BUCK1CTRL, 0x59); - /* increase VDD_SOC to typical value 0.85v before first DRAM access */ - pmic_reg_write(dev, BD718XX_BUCK1_VOLT_RUN, 0x0f); + /* Set DVS1 to 0.8v for suspend */ + pmic_reg_write(dev, PCA9450_BUCK1OUT_DVS1, 0x10); - /* increase VDD_DRAM to 0.975v for 3Ghz DDR */ - pmic_reg_write(dev, BD718XX_1ST_NODVS_BUCK_VOLT, 0x83); + /* increase VDD_DRAM to 0.95v for 3Ghz DDR */ + pmic_reg_write(dev, PCA9450_BUCK3OUT_DVS0, 0x1C); -#ifndef CONFIG_IMX8M_LPDDR4 - /* increase NVCC_DRAM_1V2 to 1.2v for DDR4 */ - pmic_reg_write(dev, BD718XX_4TH_NODVS_BUCK_VOLT, 0x28); -#endif + /* VDD_DRAM needs off in suspend, set B1_ENMODE=10 (ON by PMIC_ON_REQ = H && PMIC_STBY_REQ = L) */ + pmic_reg_write(dev, PCA9450_BUCK3CTRL, 0x4a); + + /* set VDD_SNVS_0V8 from default 0.85V */ + pmic_reg_write(dev, PCA9450_LDO2CTRL, 0xC0); - /* lock the PMIC regs */ - pmic_reg_write(dev, BD718XX_REGLOCK, 0x11); + /* set WDOG_B_CFG to cold reset */ + pmic_reg_write(dev, PCA9450_RESET_CTRL, 0xA1); return 0; } diff --git a/configs/imx8mm_evk_defconfig b/configs/imx8mm_evk_defconfig index e22b7de..ae9e062 100644 --- a/configs/imx8mm_evk_defconfig +++ b/configs/imx8mm_evk_defconfig @@ -83,7 +83,7 @@ CONFIG_PINCTRL=y CONFIG_SPL_PINCTRL=y CONFIG_PINCTRL_IMX8M=y CONFIG_DM_PMIC=y -CONFIG_SPL_DM_PMIC_BD71837=y +CONFIG_SPL_DM_PMIC_PCA9450=y CONFIG_DM_REGULATOR=y CONFIG_DM_REGULATOR_FIXED=y CONFIG_DM_REGULATOR_GPIO=y -- 2.7.4