// SPDX-License-Identifier: GPL-2.0+ /* * Copyright 2019 NXP * Copyright 2022 Linaro */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include DECLARE_GLOBAL_DATA_PTR; #define UART_PAD_CTRL (PAD_CTL_DSE6 | PAD_CTL_FSEL1) #define WDOG_PAD_CTRL (PAD_CTL_DSE6 | PAD_CTL_ODE | PAD_CTL_PUE | PAD_CTL_PE) static const iomux_v3_cfg_t uart_pads[] = { MX8MP_PAD_ECSPI1_SCLK__UART3_DCE_RX | MUX_PAD_CTRL(UART_PAD_CTRL), MX8MP_PAD_ECSPI1_MOSI__UART3_DCE_TX | MUX_PAD_CTRL(UART_PAD_CTRL), }; static const iomux_v3_cfg_t wdog_pads[] = { MX8MP_PAD_GPIO1_IO02__WDOG1_WDOG_B | MUX_PAD_CTRL(WDOG_PAD_CTRL), }; #ifdef CONFIG_NAND_MXS static void setup_gpmi_nand(void) { init_nand_clk(); } #endif int board_early_init_f(void) { struct wdog_regs *wdog = (struct wdog_regs *)WDOG1_BASE_ADDR; imx_iomux_v3_setup_multiple_pads(wdog_pads, ARRAY_SIZE(wdog_pads)); set_wdog_reset(wdog); imx_iomux_v3_setup_multiple_pads(uart_pads, ARRAY_SIZE(uart_pads)); init_uart_clk(2); return 0; } #ifdef CONFIG_OF_BOARD_SETUP int ft_board_setup(void *blob, struct bd_info *bd) { return 0; } #endif #ifdef CONFIG_FEC_MXC #define FEC_RST_PAD IMX_GPIO_NR(4, 2) static const iomux_v3_cfg_t fec1_rst_pads[] = { MX8MP_PAD_SAI1_RXD0__GPIO4_IO02 | MUX_PAD_CTRL(NO_PAD_CTRL), }; static void setup_iomux_fec(void) { imx_iomux_v3_setup_multiple_pads(fec1_rst_pads, ARRAY_SIZE(fec1_rst_pads)); gpio_request(FEC_RST_PAD, "fec1_rst"); gpio_direction_output(FEC_RST_PAD, 0); mdelay(15); gpio_direction_output(FEC_RST_PAD, 1); mdelay(100); } static int setup_fec(void) { struct iomuxc_gpr_base_regs *gpr = (struct iomuxc_gpr_base_regs *)IOMUXC_GPR_BASE_ADDR; setup_iomux_fec(); /* Enable RGMII TX clk output */ setbits_le32(&gpr->gpr[1], BIT(22)); return 0; } #endif /* CONFIG_FEC_MXC */ #ifdef CONFIG_DWC_ETH_QOS #define EQOS_RST_PAD IMX_GPIO_NR(4, 22) static const iomux_v3_cfg_t eqos_rst_pads[] = { MX8MP_PAD_SAI2_RXC__GPIO4_IO22 | MUX_PAD_CTRL(NO_PAD_CTRL), }; static void setup_iomux_eqos(void) { imx_iomux_v3_setup_multiple_pads(eqos_rst_pads, ARRAY_SIZE(eqos_rst_pads)); gpio_request(EQOS_RST_PAD, "eqos_rst"); gpio_direction_output(EQOS_RST_PAD, 0); mdelay(15); gpio_direction_output(EQOS_RST_PAD, 1); mdelay(100); } static int setup_eqos(void) { struct iomuxc_gpr_base_regs *gpr = (struct iomuxc_gpr_base_regs *)IOMUXC_GPR_BASE_ADDR; setup_iomux_eqos(); /* set INTF as RGMII, enable RGMII TXC clock */ clrsetbits_le32(&gpr->gpr[1], IOMUXC_GPR_GPR1_GPR_ENET_QOS_INTF_SEL_MASK, BIT(16)); setbits_le32(&gpr->gpr[1], BIT(19) | BIT(21)); return set_clk_eqos(ENET_125MHZ); } #endif /* CONFIG_DWC_ETH_QOS */ int board_phy_config(struct phy_device *phydev) { if (IS_ENABLED(CONFIG_FEC_MXC) || IS_ENABLED(CONFIG_DWC_ETH_QOS)) { /* enable rgmii rxc skew and phy mode select to RGMII copper */ 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; } #define DISPMIX 13 #define MIPI 15 #define WDOG_TRIG IMX_GPIO_NR(4, 20) static iomux_v3_cfg_t wdt_trig[] = { MX8MP_PAD_SAI1_MCLK__GPIO4_IO20 | MUX_PAD_CTRL(NO_PAD_CTRL), }; static void setup_iomux_wdt(void) { imx_iomux_v3_setup_multiple_pads(wdt_trig, ARRAY_SIZE(wdt_trig)); gpio_request(WDOG_TRIG, "wdt_trig"); gpio_direction_output(WDOG_TRIG, 1); } int board_init(void) { #ifdef CONFIG_FEC_MXC setup_fec(); #endif #ifdef CONFIG_DWC_ETH_QOS /* clock, pin, gpr */ setup_eqos(); #endif #ifdef CONFIG_NAND_MXS setup_gpmi_nand(); #endif setup_iomux_wdt(); return 0; } int board_late_init(void) { if (IS_ENABLED(CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG)) { env_set("board_name", "RSB3720A1"); env_set("board_rev", "iMX8MP"); } return 0; } #ifdef CONFIG_SPL_MMC_SUPPORT #define UBOOT_RAW_SECTOR_OFFSET 0x40 unsigned long spl_mmc_get_uboot_raw_sector(struct mmc *mmc) { u32 boot_dev = spl_boot_device(); switch (boot_dev) { case BOOT_DEVICE_MMC2: return CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR - UBOOT_RAW_SECTOR_OFFSET; default: return CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR; } } #endif /* CONFIG_SPL_MMC_SUPPORT */