[PATCH 03/26] imx8mm_evk: Switch to new imx8mm evk board
Peng Fan (OSS)
peng.fan at oss.nxp.com
Fri Mar 19 08:56:55 CET 2021
From: Ye Li <ye.li at nxp.com>
Update PMIC to use PCA9540, the legacy board not supported by NXP
Signed-off-by: Ye Li <ye.li at nxp.com>
---
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 e843a5648e..7f48912b49 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 at 0/bus at 30800000/i2c at 30a20000/pmic at 4b} {
+&{/soc at 0/bus at 30800000/i2c at 30a20000/pca9450 at 25} {
u-boot,dm-spl;
};
-&{/soc at 0/bus at 30800000/i2c at 30a20000/pmic at 4b/regulators} {
+&{/soc at 0/bus at 30800000/i2c at 30a20000/pca9450 at 25/regulators} {
u-boot,dm-spl;
};
diff --git a/arch/arm/dts/imx8mm-evk.dtsi b/arch/arm/dts/imx8mm-evk.dtsi
index 6518f088b2..60179e006d 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 at 4b {
- compatible = "rohm,bd71847";
- reg = <0x4b>;
- pinctrl-names = "default";
+ pmic: pca9450 at 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 at 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 at 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 at 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 at 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 at 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 at 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 at 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 at 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 at 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 at 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 at 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 64bc60651d..4ef7f6f180 100644
--- a/board/freescale/imx8mm_evk/spl.c
+++ b/board/freescale/imx8mm_evk/spl.c
@@ -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 at 4b", &dev);
+ ret = pmic_get("pca9450 at 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 e22b7de56f..ae9e0626dd 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
--
2.30.0
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