diff options
Diffstat (limited to 'roms/u-boot/board/freescale/imx8qxp_mek/imx8qxp_mek.c')
-rw-r--r-- | roms/u-boot/board/freescale/imx8qxp_mek/imx8qxp_mek.c | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/roms/u-boot/board/freescale/imx8qxp_mek/imx8qxp_mek.c b/roms/u-boot/board/freescale/imx8qxp_mek/imx8qxp_mek.c new file mode 100644 index 000000000..21cfa142f --- /dev/null +++ b/roms/u-boot/board/freescale/imx8qxp_mek/imx8qxp_mek.c @@ -0,0 +1,170 @@ +// 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 <asm/arch/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; +} |