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imx8mn: Add LPDDR4 EVK board support

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Add support for iMX8MN LPDDR4 EVK board which uses 2GB LPDDR4 and
PCA9450B PMIC.

Signed-off-by: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
This commit is contained in:
Peng Fan 2021-03-19 15:57:08 +08:00 committed by Stefano Babic
parent e3422b0d59
commit 4e805c197b
10 changed files with 1889 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
arch/arm/dts/Makefile
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@ -799,6 +799,7 @@ dtb-$(CONFIG_ARCH_IMX8M) += \
imx8mm-verdin.dtb \
phycore-imx8mm.dtb \
imx8mn-ddr4-evk.dtb \
imx8mn-evk.dtb \
imx8mq-evk.dtb \
imx8mm-beacon-kit.dtb \
imx8mn-beacon-kit.dtb \

3
arch/arm/dts/imx8mn-ddr4-evk-u-boot.dtsi
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@ -19,6 +19,9 @@
&clk {
u-boot,dm-spl;
u-boot,dm-pre-reloc;
/delete-property/ assigned-clocks;
/delete-property/ assigned-clock-parents;
/delete-property/ assigned-clock-rates;
};
&osc_24m {

26
arch/arm/dts/imx8mn-evk-u-boot.dtsi Normal file
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@ -0,0 +1,26 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2019 NXP
*/
#include "imx8mn-ddr4-evk-u-boot.dtsi"
&i2c1 {
u-boot,dm-spl;
};
&{/soc@0/bus@30800000/i2c@30a20000/pca9450@25} {
u-boot,dm-spl;
};
&{/soc@0/bus@30800000/i2c@30a20000/pca9450@25/regulators} {
u-boot,dm-spl;
};
&pinctrl_i2c1 {
u-boot,dm-spl;
};
&pinctrl_pmic {
u-boot,dm-spl;
};

128
arch/arm/dts/imx8mn-evk.dts Normal file
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@ -0,0 +1,128 @@
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
* Copyright 2019 NXP
*/
/dts-v1/;
#include "imx8mn.dtsi"
#include "imx8mn-evk.dtsi"
#include <dt-bindings/interrupt-controller/irq.h>
/ {
model = "NXP i.MX8MNano EVK board";
compatible = "fsl,imx8mn-evk", "fsl,imx8mn";
};
&A53_0 {
cpu-supply = <&buck2>;
};
&A53_1 {
cpu-supply = <&buck2>;
};
&A53_2 {
cpu-supply = <&buck2>;
};
&A53_3 {
cpu-supply = <&buck2>;
};
&i2c1 {
pmic: pca9450@25 {
compatible = "nxp,pca9450b";
reg = <0x25>;
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_pmic>;
interrupt-parent = <&gpio1>;
interrupts = <3 IRQ_TYPE_LEVEL_LOW>;
regulators {
buck1: BUCK1{
regulator-name = "BUCK1";
regulator-min-microvolt = <600000>;
regulator-max-microvolt = <2187500>;
regulator-boot-on;
regulator-always-on;
regulator-ramp-delay = <3125>;
};
buck2: BUCK2 {
regulator-name = "BUCK2";
regulator-min-microvolt = <600000>;
regulator-max-microvolt = <2187500>;
regulator-boot-on;
regulator-always-on;
regulator-ramp-delay = <3125>;
nxp,dvs-run-voltage = <950000>;
nxp,dvs-standby-voltage = <850000>;
};
buck4: BUCK4{
regulator-name = "BUCK4";
regulator-min-microvolt = <600000>;
regulator-max-microvolt = <3400000>;
regulator-boot-on;
regulator-always-on;
};
buck5: BUCK5{
regulator-name = "BUCK5";
regulator-min-microvolt = <600000>;
regulator-max-microvolt = <3400000>;
regulator-boot-on;
regulator-always-on;
};
buck6: BUCK6 {
regulator-name = "BUCK6";
regulator-min-microvolt = <600000>;
regulator-max-microvolt = <3400000>;
regulator-boot-on;
regulator-always-on;
};
ldo1: LDO1 {
regulator-name = "LDO1";
regulator-min-microvolt = <1600000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
};
ldo2: LDO2 {
regulator-name = "LDO2";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <1150000>;
regulator-boot-on;
regulator-always-on;
};
ldo3: LDO3 {
regulator-name = "LDO3";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
};
ldo4: LDO4 {
regulator-name = "LDO4";
regulator-min-microvolt = <800000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
};
ldo5: LDO5 {
regulator-name = "LDO5";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
};
};
};
};

6
arch/arm/mach-imx/imx8m/Kconfig
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@ -49,6 +49,12 @@ config TARGET_IMX8MM_VENICE
select SUPPORT_SPL
select IMX8M_LPDDR4
config TARGET_IMX8MN_EVK
bool "imx8mn LPDDR4 EVK board"
select IMX8MN
select SUPPORT_SPL
select IMX8M_LPDDR4
config TARGET_IMX8MN_DDR4_EVK
bool "imx8mn DDR4 EVK board"
select IMX8MN

2
board/freescale/imx8mn_evk/Kconfig
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@ -1,4 +1,4 @@
if TARGET_IMX8MN_DDR4_EVK
if TARGET_IMX8MN_EVK || TARGET_IMX8MN_DDR4_EVK
config SYS_BOARD
default "imx8mn_evk"

1
board/freescale/imx8mn_evk/Makefile
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@ -8,5 +8,6 @@ obj-y += imx8mn_evk.o
ifdef CONFIG_SPL_BUILD
obj-y += spl.o
obj-$(CONFIG_IMX8M_LPDDR4) += lpddr4_timing.o
obj-$(CONFIG_IMX8M_DDR4) += ddr4_timing.o
endif

1587
board/freescale/imx8mn_evk/lpddr4_timing.c Normal file
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File diff suppressed because it is too large Load Diff

43
board/freescale/imx8mn_evk/spl.c
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@ -25,6 +25,12 @@
#include <dm/device.h>
#include <dm/uclass-internal.h>
#include <dm/device-internal.h>
#include <power/pmic.h>
#include <power/pca9450.h>
#include <asm/mach-imx/gpio.h>
#include <asm/mach-imx/mxc_i2c.h>
#include <fsl_esdhc_imx.h>
#include <mmc.h>
DECLARE_GLOBAL_DATA_PTR;
@ -52,6 +58,43 @@ void spl_board_init(void)
printf("Failed to find clock node. Check device tree\n");
}
#if CONFIG_IS_ENABLED(DM_PMIC_PCA9450)
int power_init_board(void)
{
struct udevice *dev;
int ret;
ret = pmic_get("pca9450@25", &dev);
if (ret == -ENODEV) {
puts("No pca9450@25\n");
return 0;
}
if (ret != 0)
return ret;
/* BUCKxOUT_DVS0/1 control BUCK123 output */
pmic_reg_write(dev, PCA9450_BUCK123_DVS, 0x29);
/* increase VDD_SOC/VDD_DRAM to typical value 0.95V before first DRAM access */
/* Set DVS1 to 0.85v for suspend */
/* Enable DVS control through PMIC_STBY_REQ and set B1_ENMODE=1 (ON by PMIC_ON_REQ=H) */
pmic_reg_write(dev, PCA9450_BUCK1OUT_DVS0, 0x1C);
pmic_reg_write(dev, PCA9450_BUCK1OUT_DVS1, 0x14);
pmic_reg_write(dev, PCA9450_BUCK1CTRL, 0x59);
/* set VDD_SNVS_0V8 from default 0.85V */
pmic_reg_write(dev, PCA9450_LDO2CTRL, 0xC0);
/* enable LDO4 to 1.2v */
pmic_reg_write(dev, PCA9450_LDO4CTRL, 0x44);
/* set WDOG_B_CFG to cold reset */
pmic_reg_write(dev, PCA9450_RESET_CTRL, 0xA1);
return 0;
}
#endif
#ifdef CONFIG_SPL_LOAD_FIT
int board_fit_config_name_match(const char *name)
{

93
configs/imx8mn_evk_defconfig Normal file
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@ -0,0 +1,93 @@
CONFIG_ARM=y
CONFIG_SPL_SYS_ICACHE_OFF=y
CONFIG_SPL_SYS_DCACHE_OFF=y
CONFIG_ARCH_IMX8M=y
CONFIG_SYS_TEXT_BASE=0x40200000
CONFIG_SPL_GPIO_SUPPORT=y
CONFIG_SPL_LIBCOMMON_SUPPORT=y
CONFIG_SPL_LIBGENERIC_SUPPORT=y
CONFIG_SYS_MALLOC_F_LEN=0x10000
CONFIG_ENV_SECT_SIZE=0x10000
CONFIG_ENV_SIZE=0x1000
CONFIG_ENV_OFFSET=0x400000
CONFIG_SYS_I2C_MXC_I2C1=y
CONFIG_SYS_I2C_MXC_I2C2=y
CONFIG_SYS_I2C_MXC_I2C3=y
CONFIG_DM_GPIO=y
CONFIG_SPL_TEXT_BASE=0x912000
CONFIG_TARGET_IMX8MN_EVK=y
CONFIG_ARCH_MISC_INIT=y
CONFIG_SPL_SERIAL_SUPPORT=y
CONFIG_SPL_DRIVERS_MISC_SUPPORT=y
CONFIG_SPL=y
CONFIG_SPL_IMX_ROMAPI_LOADADDR=0x48000000
CONFIG_DEFAULT_DEVICE_TREE="imx8mn-evk"
CONFIG_FIT=y
CONFIG_FIT_EXTERNAL_OFFSET=0x3000
CONFIG_SPL_LOAD_FIT=y
CONFIG_SPL_FIT_GENERATOR="arch/arm/mach-imx/mkimage_fit_atf.sh"
CONFIG_OF_SYSTEM_SETUP=y
CONFIG_SYS_EXTRA_OPTIONS="IMX_CONFIG=arch/arm/mach-imx/imx8m/imximage-8mn-lpddr4.cfg"
CONFIG_DEFAULT_FDT_FILE="imx8mn-evk.dtb"
CONFIG_BOARD_LATE_INIT=y
CONFIG_SPL_BOARD_INIT=y
CONFIG_SPL_BOOTROM_SUPPORT=y
CONFIG_SPL_SEPARATE_BSS=y
CONFIG_SPL_I2C_SUPPORT=y
CONFIG_SPL_WATCHDOG_SUPPORT=y
CONFIG_SPL_POWER_SUPPORT=y
CONFIG_HUSH_PARSER=y
CONFIG_SYS_PROMPT="u-boot=> "
# CONFIG_CMD_EXPORTENV is not set
# CONFIG_CMD_IMPORTENV is not set
CONFIG_CMD_ERASEENV=y
# CONFIG_CMD_CRC32 is not set
CONFIG_CMD_CLK=y
CONFIG_CMD_FUSE=y
CONFIG_CMD_GPIO=y
CONFIG_CMD_I2C=y
CONFIG_CMD_MMC=y
CONFIG_CMD_CACHE=y
CONFIG_CMD_REGULATOR=y
CONFIG_CMD_EXT2=y
CONFIG_CMD_EXT4=y
CONFIG_CMD_EXT4_WRITE=y
CONFIG_CMD_FAT=y
CONFIG_OF_CONTROL=y
CONFIG_SPL_OF_CONTROL=y
CONFIG_ENV_OVERWRITE=y
CONFIG_ENV_IS_IN_MMC=y
CONFIG_SYS_RELOC_GD_ENV_ADDR=y
CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG=y
CONFIG_SPL_DM=y
CONFIG_SPL_CLK_COMPOSITE_CCF=y
CONFIG_CLK_COMPOSITE_CCF=y
CONFIG_SPL_CLK_IMX8MN=y
CONFIG_CLK_IMX8MN=y
CONFIG_MXC_GPIO=y
CONFIG_DM_I2C=y
CONFIG_SYS_I2C_MXC=y
CONFIG_DM_MMC=y
CONFIG_SUPPORT_EMMC_BOOT=y
CONFIG_MMC_IO_VOLTAGE=y
CONFIG_MMC_UHS_SUPPORT=y
CONFIG_MMC_HS400_ES_SUPPORT=y
CONFIG_MMC_HS400_SUPPORT=y
CONFIG_FSL_ESDHC_IMX=y
CONFIG_PHYLIB=y
CONFIG_DM_ETH=y
CONFIG_PINCTRL=y
CONFIG_SPL_PINCTRL=y
CONFIG_PINCTRL_IMX8M=y
CONFIG_DM_PMIC=y
CONFIG_SPL_DM_PMIC_PCA9450=y
CONFIG_DM_REGULATOR=y
CONFIG_DM_REGULATOR_FIXED=y
CONFIG_DM_REGULATOR_GPIO=y
CONFIG_MXC_UART=y
CONFIG_SYSRESET=y
CONFIG_SPL_SYSRESET=y
CONFIG_SYSRESET_PSCI=y
CONFIG_SYSRESET_WATCHDOG=y
CONFIG_DM_THERMAL=y
CONFIG_IMX_WATCHDOG=y