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https://github.com/AsahiLinux/u-boot
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a20be24cd4
The PCA9450 reset configuration can now be performed by the PCA9450 PMIC driver itself, remove the hard-coded variant from board code and let the PMIC driver perform this task using one-liner: ``` $ sed -i '/set WDOG_B_CFG to cold reset/,+2 d' $(git grep -l PCA9450_RESET_CTRL.*0xA1 board/) ``` Venice and i.MX93 EVK required slight manual fix up. Signed-off-by: Marek Vasut <marex@denx.de> Reviewed-by: Fabio Estevam <festevam@denx.de> Reviewed-by: Peng Fan <peng.fan@nxp.com>
257 lines
6.3 KiB
C
257 lines
6.3 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2018-2019 NXP
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* Copyright 2022 Linaro
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*/
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#include <common.h>
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#include <command.h>
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#include <cpu_func.h>
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#include <errno.h>
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#include <fsl_esdhc_imx.h>
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#include <hang.h>
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#include <image.h>
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#include <init.h>
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#include <log.h>
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#include <mmc.h>
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#include <spl.h>
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#include <asm/io.h>
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#include <asm/arch/clock.h>
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#include <asm/arch/ddr.h>
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#include <asm/arch/imx8mp_pins.h>
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#include <asm/arch/sys_proto.h>
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#include <asm/mach-imx/boot_mode.h>
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#include <asm/mach-imx/gpio.h>
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#include <asm/mach-imx/iomux-v3.h>
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#include <asm/mach-imx/mxc_i2c.h>
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#include <dm/uclass.h>
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#include <linux/delay.h>
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#include <power/pmic.h>
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#include <power/pca9450.h>
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DECLARE_GLOBAL_DATA_PTR;
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int spl_board_boot_device(enum boot_device boot_dev_spl)
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{
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#ifdef CONFIG_SPL_BOOTROM_SUPPORT
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return BOOT_DEVICE_BOOTROM;
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#else
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switch (boot_dev_spl) {
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case SD1_BOOT:
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case MMC1_BOOT:
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case SD2_BOOT:
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case MMC2_BOOT:
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return BOOT_DEVICE_MMC1;
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case SD3_BOOT:
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case MMC3_BOOT:
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return BOOT_DEVICE_MMC2;
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case QSPI_BOOT:
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return BOOT_DEVICE_NOR;
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case NAND_BOOT:
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return BOOT_DEVICE_NAND;
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case USB_BOOT:
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return BOOT_DEVICE_BOARD;
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default:
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return BOOT_DEVICE_NONE;
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}
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#endif
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}
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void spl_dram_init(void)
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{
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ddr_init(&dram_timing);
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}
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#define I2C_PAD_CTRL (PAD_CTL_DSE6 | PAD_CTL_HYS | PAD_CTL_PUE | PAD_CTL_PE)
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#define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
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struct i2c_pads_info i2c_pad_info1 = {
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.scl = {
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.i2c_mode = MX8MP_PAD_I2C1_SCL__I2C1_SCL | PC,
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.gpio_mode = MX8MP_PAD_I2C1_SCL__GPIO5_IO14 | PC,
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.gp = IMX_GPIO_NR(5, 14),
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},
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.sda = {
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.i2c_mode = MX8MP_PAD_I2C1_SDA__I2C1_SDA | PC,
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.gpio_mode = MX8MP_PAD_I2C1_SDA__GPIO5_IO15 | PC,
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.gp = IMX_GPIO_NR(5, 15),
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},
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};
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#define USDHC2_CD_GPIO IMX_GPIO_NR(2, 12)
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#define USDHC2_PWR_GPIO IMX_GPIO_NR(2, 19)
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#define USDHC_PAD_CTRL (PAD_CTL_DSE6 | PAD_CTL_HYS | PAD_CTL_PUE | \
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PAD_CTL_PE | \
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PAD_CTL_FSEL2)
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#define USDHC_GPIO_PAD_CTRL (PAD_CTL_HYS | PAD_CTL_DSE1)
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#define USDHC_CD_PAD_CTRL (PAD_CTL_PE | PAD_CTL_PUE | PAD_CTL_HYS | \
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PAD_CTL_DSE4)
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static const iomux_v3_cfg_t usdhc3_pads[] = {
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MX8MP_PAD_NAND_WE_B__USDHC3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX8MP_PAD_NAND_WP_B__USDHC3_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX8MP_PAD_NAND_DATA04__USDHC3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX8MP_PAD_NAND_DATA05__USDHC3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX8MP_PAD_NAND_DATA06__USDHC3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX8MP_PAD_NAND_DATA07__USDHC3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX8MP_PAD_NAND_RE_B__USDHC3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX8MP_PAD_NAND_CE2_B__USDHC3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX8MP_PAD_NAND_CE3_B__USDHC3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX8MP_PAD_NAND_CLE__USDHC3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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};
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static const iomux_v3_cfg_t usdhc2_pads[] = {
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MX8MP_PAD_SD2_CLK__USDHC2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX8MP_PAD_SD2_CMD__USDHC2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX8MP_PAD_SD2_DATA0__USDHC2_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX8MP_PAD_SD2_DATA1__USDHC2_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX8MP_PAD_SD2_DATA2__USDHC2_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX8MP_PAD_SD2_DATA3__USDHC2_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
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MX8MP_PAD_SD2_RESET_B__GPIO2_IO19 | MUX_PAD_CTRL(USDHC_GPIO_PAD_CTRL),
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MX8MP_PAD_SD2_CD_B__GPIO2_IO12 | MUX_PAD_CTRL(USDHC_CD_PAD_CTRL),
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};
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#ifndef USDHC3_BASE_ADDR
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#define USDHC3_BASE_ADDR 0x30B60000
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#endif
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static struct fsl_esdhc_cfg usdhc_cfg[2] = {
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{USDHC2_BASE_ADDR, 0, 4},
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{USDHC3_BASE_ADDR, 0, 8},
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};
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int board_mmc_init(struct bd_info *bis)
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{
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int i, ret;
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/*
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* According to the board_mmc_init() the following map is done:
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* (U-Boot device node) (Physical Port)
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* mmc0 USDHC1
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* mmc1 USDHC2
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*/
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for (i = 0; i < CFG_SYS_FSL_USDHC_NUM; i++) {
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switch (i) {
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case 0:
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init_clk_usdhc(1);
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usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC2_CLK);
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imx_iomux_v3_setup_multiple_pads(usdhc2_pads,
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ARRAY_SIZE(usdhc2_pads));
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gpio_request(USDHC2_PWR_GPIO, "usdhc2_reset");
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gpio_direction_output(USDHC2_PWR_GPIO, 0);
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udelay(500);
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gpio_direction_output(USDHC2_PWR_GPIO, 1);
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gpio_request(USDHC2_CD_GPIO, "usdhc2 cd");
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gpio_direction_input(USDHC2_CD_GPIO);
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break;
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case 1:
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init_clk_usdhc(2);
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usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
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imx_iomux_v3_setup_multiple_pads(usdhc3_pads,
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ARRAY_SIZE(usdhc3_pads));
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break;
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default:
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printf("Warning: you configured more USDHC controllers");
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printf("(%d) than supported by the board\n", i + 1);
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return -EINVAL;
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}
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ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
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if (ret)
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return ret;
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}
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return 0;
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}
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int board_mmc_getcd(struct mmc *mmc)
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{
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struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
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int ret = 0;
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switch (cfg->esdhc_base) {
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default:
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break;
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case USDHC2_BASE_ADDR:
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ret = !gpio_get_value(USDHC2_CD_GPIO);
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return ret;
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}
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return 1;
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}
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int power_init_board(void)
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{
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struct udevice *pdev;
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int ret;
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ret = pmic_get("pca9450@25", &pdev);
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if (ret == -ENODEV) {
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printf("No pmic\n");
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return 0;
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}
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if (ret != 0)
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return ret;
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/* BUCKxOUT_DVS0/1 control BUCK123 output */
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pmic_reg_write(pdev, PCA9450_BUCK123_DVS, 0x29);
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/*
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* increase VDD_SOC to typical value 0.95V before first
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* DRAM access, set DVS1 to 0.85v for suspend.
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* Enable DVS control through PMIC_STBY_REQ and
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* set B1_ENMODE=1 (ON by PMIC_ON_REQ=H)
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*/
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pmic_reg_write(pdev, PCA9450_BUCK1OUT_DVS0, 0x1C);
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pmic_reg_write(pdev, PCA9450_BUCK1OUT_DVS1, 0x14);
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pmic_reg_write(pdev, PCA9450_BUCK1CTRL, 0x59);
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/* Kernel uses OD/OD freq for SOC */
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/* To avoid timing risk from SOC to ARM,increase VDD_ARM to OD voltage 0.95v */
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pmic_reg_write(pdev, PCA9450_BUCK2OUT_DVS0, 0x1C);
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/* Forced enable the I2C level translator*/
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pmic_reg_write(pdev, PCA9450_CONFIG2, 0x03);
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return 0;
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}
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void spl_board_init(void)
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{
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puts("Normal Boot\n");
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}
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#ifdef CONFIG_SPL_LOAD_FIT
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int board_fit_config_name_match(const char *name)
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{
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/* Just empty function now - can't decide what to choose */
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debug("%s: %s\n", __func__, name);
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return 0;
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}
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#endif
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void board_init_f(ulong dummy)
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{
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int ret;
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arch_cpu_init();
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board_early_init_f();
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timer_init();
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ret = spl_early_init();
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if (ret) {
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debug("spl_init() failed: %d\n", ret);
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hang();
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}
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preloader_console_init();
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enable_tzc380();
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power_init_board();
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/* DDR initialization */
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spl_dram_init();
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}
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