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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2017-2018 NXP
* Copyright 2019-2023 Kococonnector GmbH
*/
#include <common.h>
#include <errno.h>
#include <linux/libfdt.h>
#include <asm/io.h>
#include <asm/gpio.h>
#include <asm/arch/clock.h>
#include <firmware/imx/sci/sci.h>
#include <asm/arch/imx8-pins.h>
#include <asm/arch/iomux.h>
#include <asm/arch/sys_proto.h>
/* #include <power-domain.h> */
DECLARE_GLOBAL_DATA_PTR;
#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))
static iomux_cfg_t uart0_pads[] = {
SC_P_UART0_RX | MUX_PAD_CTRL(UART_PAD_CTRL),
SC_P_UART0_TX | MUX_PAD_CTRL(UART_PAD_CTRL),
};
static void setup_iomux_uart(void)
{
imx8_iomux_setup_multiple_pads(uart0_pads, ARRAY_SIZE(uart0_pads));
}
int board_early_init_f(void)
{
sc_pm_clock_rate_t rate = SC_80MHZ;
int ret;
/* Set UART0 clock root to 80 MHz */
ret = sc_pm_setup_uart(SC_R_UART_0, rate);
if (ret)
return ret;
setup_iomux_uart();
/* This is needed to because Kernel do not Power Up DC_0 */
sc_pm_set_resource_power_mode(-1, SC_R_DC_0, SC_PM_PW_MODE_ON);
sc_pm_set_resource_power_mode(-1, SC_R_GPIO_5, SC_PM_PW_MODE_ON);
return 0;
}
#if IS_ENABLED(CONFIG_FEC_MXC)
#include <miiphy.h>
int board_phy_config(struct phy_device *phydev)
{
phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x1f);
phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x8);
phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x00);
phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x82ee);
phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x05);
phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x100);
if (phydev->drv->config)
phydev->drv->config(phydev);
return 0;
}
#endif
#ifdef CONFIG_MXC_GPIO
#define LVDS_ENABLE IMX_GPIO_NR(1, 6)
#define MIPI_ENABLE IMX_GPIO_NR(1, 7)
#define BB_GPIO_3V3_1 IMX_GPIO_NR(4, 20)
#define BB_GPIO_3V3_2 IMX_GPIO_NR(4, 24)
#define BB_GPIO_3V3_3 IMX_GPIO_NR(4, 23)
static void board_gpio_init(void)
{
/* Enable BB 3V3 */
gpio_request(BB_GPIO_3V3_1, "bb_3v3_1");
gpio_direction_output(BB_GPIO_3V3_1, 1);
gpio_request(BB_GPIO_3V3_2, "bb_3v3_2");
gpio_direction_output(BB_GPIO_3V3_2, 1);
gpio_request(BB_GPIO_3V3_3, "bb_3v3_3");
gpio_direction_output(BB_GPIO_3V3_3, 1);
/* enable LVDS SAS boards */
gpio_request(LVDS_ENABLE, "lvds_enable");
gpio_direction_output(LVDS_ENABLE, 1);
/* enable MIPI SAS boards */
gpio_request(MIPI_ENABLE, "mipi_enable");
gpio_direction_output(MIPI_ENABLE, 1);
}
#endif
int checkboard(void)
{
puts("Board: DMS-SE20A1 8GB\n");
build_info();
print_bootinfo();
return 0;
}
int board_init(void)
{
if (IS_ENABLED(CONFIG_XEN))
return 0;
#ifdef CONFIG_MXC_GPIO
board_gpio_init();
#endif
return 0;
}
void board_quiesce_devices(void)
{
if (IS_ENABLED(CONFIG_XEN)) {
/* Clear magic number to let xen know uboot is over */
writel(0x0, (void __iomem *)0x80000000);
return;
}
}
void detail_board_ddr_info(void)
{
puts("\nDDR ");
}
/*
* Board specific reset that is system reset.
*/
void reset_cpu(void)
{
puts("SCI reboot request");
while (1)
putc('.');
}
#ifdef CONFIG_OF_BOARD_SETUP
int ft_board_setup(void *blob, struct bd_info *bd)
{
return 0;
}
#endif
int board_mmc_get_env_dev(int devno)
{
/* Use EMMC */
if (IS_ENABLED(CONFIG_XEN))
return 0;
return devno;
}
int mmc_map_to_kernel_blk(int dev_no)
{
/* Use EMMC */
if (IS_ENABLED(CONFIG_XEN))
return 0;
return dev_no;
}
int board_late_init(void)
{
#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
env_set("board_name", "DMS-SE20A1");
env_set("board_rev", "iMX8QM");
#endif
env_set("sec_boot", "no");
#ifdef CONFIG_AHAB_BOOT
env_set("sec_boot", "yes");
#endif
return 0;
}
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