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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright 2018 NXP
*/
#include <common.h>
#include <cpu_func.h>
#include <env.h>
#include <errno.h>
#include <init.h>
#include <asm/global_data.h>
#include <linux/delay.h>
#include <linux/libfdt.h>
#include <fsl_esdhc_imx.h>
#include <fdt_support.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/snvs_security_sc.h>
#include <asm/arch/iomux.h>
#include <asm/arch/sys_proto.h>
DECLARE_GLOBAL_DATA_PTR;
#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 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();
return 0;
}
#if CONFIG_IS_ENABLED(DM_GPIO)
static void board_gpio_init(void)
{
struct gpio_desc desc;
int ret;
ret = dm_gpio_lookup_name("gpio@1a_3", &desc);
if (ret)
return;
ret = dm_gpio_request(&desc, "bb_per_rst_b");
if (ret)
return;
dm_gpio_set_dir_flags(&desc, GPIOD_IS_OUT);
dm_gpio_set_value(&desc, 0);
udelay(50);
dm_gpio_set_value(&desc, 1);
}
#else
static inline void board_gpio_init(void) {}
#endif
#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, 0x05);
phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x100);
if (phydev->drv->config)
phydev->drv->config(phydev);
return 0;
}
#endif
int checkboard(void)
{
puts("Board: iMX8QXP MEK\n");
build_info();
print_bootinfo();
return 0;
}
int board_init(void)
{
board_gpio_init();
#ifdef CONFIG_IMX_SNVS_SEC_SC_AUTO
{
int ret = snvs_security_sc_init();
if (ret)
return ret;
}
#endif
return 0;
}
/*
* Board specific reset that is system reset.
*/
void reset_cpu(void)
{
/* TODO */
}
#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)
{
return devno;
}
int board_late_init(void)
{
char *fdt_file;
bool m4_booted;
#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
env_set("board_name", "MEK");
env_set("board_rev", "iMX8QXP");
#endif
fdt_file = env_get("fdt_file");
m4_booted = m4_parts_booted();
if (fdt_file && !strcmp(fdt_file, "undefined")) {
if (m4_booted)
env_set("fdt_file", "imx8qxp-mek-rpmsg.dtb");
else
env_set("fdt_file", "imx8qxp-mek.dtb");
}
return 0;
}
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