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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2017-2018 NXP
*/
#include <common.h>
#include <dm.h>
#include <image.h>
#include <init.h>
#include <log.h>
#include <spl.h>
#include <fsl_esdhc.h>
#include <asm/global_data.h>
#include <asm/io.h>
#include <asm/gpio.h>
#include <asm/arch/clock.h>
#include <asm/arch/sci/sci.h>
#include <asm/arch/imx8-pins.h>
#include <asm/arch/iomux.h>
DECLARE_GLOBAL_DATA_PTR;
#define ESDHC_PAD_CTRL ((SC_PAD_CONFIG_NORMAL << PADRING_CONFIG_SHIFT) | \
(SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \
(SC_PAD_28FDSOI_DSE_DV_HIGH << PADRING_DSE_SHIFT) | \
(SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT))
#define ESDHC_CLK_PAD_CTRL ((SC_PAD_CONFIG_OUT_IN << PADRING_CONFIG_SHIFT) | \
(SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \
(SC_PAD_28FDSOI_DSE_DV_HIGH << PADRING_DSE_SHIFT) | \
(SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT))
#define ENET_INPUT_PAD_CTRL ((SC_PAD_CONFIG_OD_IN << PADRING_CONFIG_SHIFT) | \
(SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \
(SC_PAD_28FDSOI_DSE_18V_10MA << PADRING_DSE_SHIFT) | \
(SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT))
#define ENET_NORMAL_PAD_CTRL ((SC_PAD_CONFIG_NORMAL << PADRING_CONFIG_SHIFT) | \
(SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \
(SC_PAD_28FDSOI_DSE_18V_10MA << PADRING_DSE_SHIFT) | \
(SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT))
#define FSPI_PAD_CTRL ((SC_PAD_CONFIG_NORMAL << PADRING_CONFIG_SHIFT) | \
(SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \
(SC_PAD_28FDSOI_DSE_DV_HIGH << PADRING_DSE_SHIFT) | \
(SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT))
#define GPIO_PAD_CTRL ((SC_PAD_CONFIG_NORMAL << PADRING_CONFIG_SHIFT) | \
(SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \
(SC_PAD_28FDSOI_DSE_DV_HIGH << PADRING_DSE_SHIFT) | \
(SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT))
#define I2C_PAD_CTRL ((SC_PAD_CONFIG_OUT_IN << PADRING_CONFIG_SHIFT) | \
(SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \
(SC_PAD_28FDSOI_DSE_DV_LOW << PADRING_DSE_SHIFT) | \
(SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT))
#define UART_PAD_CTRL ((SC_PAD_CONFIG_OUT_IN << PADRING_CONFIG_SHIFT) | \
(SC_PAD_ISO_OFF << PADRING_LPCONFIG_SHIFT) | \
(SC_PAD_28FDSOI_DSE_DV_HIGH << PADRING_DSE_SHIFT) | \
(SC_PAD_28FDSOI_PS_PU << PADRING_PULL_SHIFT))
#ifdef CONFIG_FSL_ESDHC
#define USDHC1_CD_GPIO IMX_GPIO_NR(5, 22)
#define USDHC2_CD_GPIO IMX_GPIO_NR(4, 12)
static struct fsl_esdhc_cfg usdhc_cfg[CFG_SYS_FSL_USDHC_NUM] = {
{USDHC1_BASE_ADDR, 0, 8},
{USDHC2_BASE_ADDR, 0, 4},
{USDHC3_BASE_ADDR, 0, 4},
};
static iomux_cfg_t emmc0[] = {
SC_P_EMMC0_CLK | MUX_PAD_CTRL(ESDHC_CLK_PAD_CTRL),
SC_P_EMMC0_CMD | MUX_PAD_CTRL(ESDHC_PAD_CTRL),
SC_P_EMMC0_DATA0 | MUX_PAD_CTRL(ESDHC_PAD_CTRL),
SC_P_EMMC0_DATA1 | MUX_PAD_CTRL(ESDHC_PAD_CTRL),
SC_P_EMMC0_DATA2 | MUX_PAD_CTRL(ESDHC_PAD_CTRL),
SC_P_EMMC0_DATA3 | MUX_PAD_CTRL(ESDHC_PAD_CTRL),
SC_P_EMMC0_DATA4 | MUX_PAD_CTRL(ESDHC_PAD_CTRL),
SC_P_EMMC0_DATA5 | MUX_PAD_CTRL(ESDHC_PAD_CTRL),
SC_P_EMMC0_DATA6 | MUX_PAD_CTRL(ESDHC_PAD_CTRL),
SC_P_EMMC0_DATA7 | MUX_PAD_CTRL(ESDHC_PAD_CTRL),
SC_P_EMMC0_RESET_B | MUX_PAD_CTRL(ESDHC_PAD_CTRL),
SC_P_EMMC0_STROBE | MUX_PAD_CTRL(ESDHC_PAD_CTRL),
};
static iomux_cfg_t usdhc2_sd[] = {
SC_P_USDHC2_CLK | MUX_PAD_CTRL(ESDHC_CLK_PAD_CTRL),
SC_P_USDHC2_CMD | MUX_PAD_CTRL(ESDHC_PAD_CTRL),
SC_P_USDHC2_DATA0 | MUX_PAD_CTRL(ESDHC_PAD_CTRL),
SC_P_USDHC2_DATA1 | MUX_PAD_CTRL(ESDHC_PAD_CTRL),
SC_P_USDHC2_DATA2 | MUX_PAD_CTRL(ESDHC_PAD_CTRL),
SC_P_USDHC2_DATA3 | MUX_PAD_CTRL(ESDHC_PAD_CTRL),
SC_P_USDHC2_RESET_B | MUX_PAD_CTRL(ESDHC_PAD_CTRL),
SC_P_USDHC2_WP | MUX_MODE_ALT(3) | MUX_PAD_CTRL(ESDHC_PAD_CTRL),
SC_P_USDHC2_CD_B | MUX_MODE_ALT(3) | MUX_PAD_CTRL(ESDHC_PAD_CTRL),
};
int board_mmc_init(struct bd_info *bis)
{
int i, ret;
/*
* According to the board_mmc_init() the following map is done:
* (U-Boot device node) (Physical Port)
* mmc0 USDHC1
* mmc1 USDHC2
* mmc2 USDHC3
*/
for (i = 0; i < CFG_SYS_FSL_USDHC_NUM; i++) {
switch (i) {
case 0:
ret = sc_pm_set_resource_power_mode(-1, SC_R_SDHC_0, SC_PM_PW_MODE_ON);
if (ret != SC_ERR_NONE)
return ret;
imx8_iomux_setup_multiple_pads(emmc0, ARRAY_SIZE(emmc0));
init_clk_usdhc(0);
usdhc_cfg[i].sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
break;
case 1:
ret = sc_pm_set_resource_power_mode(-1, SC_R_SDHC_2, SC_PM_PW_MODE_ON);
if (ret != SC_ERR_NONE)
return ret;
ret = sc_pm_set_resource_power_mode(-1, SC_R_GPIO_4, SC_PM_PW_MODE_ON);
if (ret != SC_ERR_NONE)
return ret;
imx8_iomux_setup_multiple_pads(usdhc2_sd, ARRAY_SIZE(usdhc2_sd));
init_clk_usdhc(2);
usdhc_cfg[i].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
gpio_request(USDHC2_CD_GPIO, "sd2_cd");
gpio_direction_input(USDHC2_CD_GPIO);
break;
default:
printf("Warning: you configured more USDHC controllers"
"(%d) than supported by the board\n", i + 1);
return 0;
}
ret = fsl_esdhc_initialize(bis, &usdhc_cfg[i]);
if (ret) {
printf("Warning: failed to initialize mmc dev %d\n", i);
return ret;
}
}
return 0;
}
int board_mmc_getcd(struct mmc *mmc)
{
struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
int ret = 0;
switch (cfg->esdhc_base) {
case USDHC1_BASE_ADDR:
ret = 1;
break;
case USDHC2_BASE_ADDR:
ret = !gpio_get_value(USDHC1_CD_GPIO);
break;
case USDHC3_BASE_ADDR:
ret = !gpio_get_value(USDHC2_CD_GPIO);
break;
}
return ret;
}
#endif /* CONFIG_FSL_ESDHC */
void spl_board_init(void)
{
#if defined(CONFIG_SPL_SPI)
if (sc_rm_is_resource_owned(-1, SC_R_FSPI_0)) {
if (sc_pm_set_resource_power_mode(-1, SC_R_FSPI_0, SC_PM_PW_MODE_ON)) {
puts("Warning: failed to initialize FSPI0\n");
}
}
#endif
puts("Normal Boot\n");
}
void spl_board_prepare_for_boot(void)
{
#if defined(CONFIG_SPL_SPI)
if (sc_rm_is_resource_owned(-1, SC_R_FSPI_0)) {
if (sc_pm_set_resource_power_mode(-1, SC_R_FSPI_0, SC_PM_PW_MODE_OFF)) {
puts("Warning: failed to turn off FSPI0\n");
}
}
#endif
}
#ifdef CONFIG_SPL_LOAD_FIT
int board_fit_config_name_match(const char *name)
{
/* Just empty function now - can't decide what to choose */
debug("%s: %s\n", __func__, name);
return 0;
}
#endif
void board_init_f(ulong dummy)
{
/* Clear global data */
memset((void *)gd, 0, sizeof(gd_t));
arch_cpu_init();
board_early_init_f();
timer_init();
preloader_console_init();
/* Clear the BSS. */
memset(__bss_start, 0, __bss_end - __bss_start);
board_init_r(NULL, 0);
}
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