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imx8mm_evk: Switch to new imx8mm evk board

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Update PMIC to use PCA9540, the legacy board not supported by NXP

Signed-off-by: Ye Li <ye.li@nxp.com>
This commit is contained in:
Ye Li 2021-03-19 15:56:55 +08:00 committed by Stefano Babic
parent cf16dc3329
commit 48ddafd9a4
4 changed files with 86 additions and 80 deletions
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4
arch/arm/dts/imx8mm-evk-u-boot.dtsi
View file

@ -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;
};

127
arch/arm/dts/imx8mm-evk.dtsi
View file

@ -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>;
};
};
};
};

33
board/freescale/imx8mm_evk/spl.c
View file

@ -26,7 +26,7 @@
#include <dm/device-internal.h>
#include <power/pmic.h>
#include <power/bd71837.h>
#include <power/pca9450.h>
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);
/* lock the PMIC regs */
pmic_reg_write(dev, BD718XX_REGLOCK, 0x11);
/* set VDD_SNVS_0V8 from default 0.85V */
pmic_reg_write(dev, PCA9450_LDO2CTRL, 0xC0);
/* set WDOG_B_CFG to cold reset */
pmic_reg_write(dev, PCA9450_RESET_CTRL, 0xA1);
return 0;
}

2
configs/imx8mm_evk_defconfig
View file

@ -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