| // SPDX-License-Identifier: GPL-2.0+ |
| /* |
| * Copyright (C) 2017 DENX Software Engineering |
| * Lukasz Majewski, DENX Software Engineering, lukma@denx.de |
| */ |
| |
| #include <common.h> |
| #include <dm.h> |
| #include <asm/io.h> |
| #include <asm/arch/clock.h> |
| #include <asm/arch/imx-regs.h> |
| #include <asm/arch/iomux.h> |
| #include <asm/arch/mx6-pins.h> |
| #include <asm/arch/mx6-ddr.h> |
| #include <asm/arch/sys_proto.h> |
| #include <errno.h> |
| #include <asm/gpio.h> |
| #include <malloc.h> |
| #include <asm/mach-imx/iomux-v3.h> |
| #include <asm/mach-imx/mxc_i2c.h> |
| #include <asm/mach-imx/boot_mode.h> |
| #include <asm/mach-imx/spi.h> |
| #include <mmc.h> |
| #include <fsl_esdhc_imx.h> |
| #include <miiphy.h> |
| #include <netdev.h> |
| #include <i2c.h> |
| #include <environment.h> |
| |
| #include <dm.h> |
| #include <dm/platform_data/serial_mxc.h> |
| #include <dm/platdata.h> |
| |
| #ifndef CONFIG_MXC_SPI |
| #error "CONFIG_SPI must be set for this board" |
| #error "Please check your config file" |
| #endif |
| |
| #include "common.h" |
| |
| DECLARE_GLOBAL_DATA_PTR; |
| |
| static bool hw_ids_valid; |
| static bool sw_ids_valid; |
| static u32 cpu_id; |
| static u32 unit_id; |
| |
| #define EM_PAD IMX_GPIO_NR(3, 29) |
| #define SW0 IMX_GPIO_NR(2, 4) |
| #define SW1 IMX_GPIO_NR(2, 5) |
| #define SW2 IMX_GPIO_NR(2, 6) |
| #define SW3 IMX_GPIO_NR(2, 7) |
| #define HW0 IMX_GPIO_NR(6, 7) |
| #define HW1 IMX_GPIO_NR(6, 9) |
| #define HW2 IMX_GPIO_NR(6, 10) |
| #define HW3 IMX_GPIO_NR(6, 11) |
| #define HW4 IMX_GPIO_NR(4, 7) |
| #define HW5 IMX_GPIO_NR(4, 11) |
| #define HW6 IMX_GPIO_NR(4, 13) |
| #define HW7 IMX_GPIO_NR(4, 15) |
| |
| int gpio_table_sw_ids[] = { |
| SW0, SW1, SW2, SW3 |
| }; |
| |
| const char *gpio_table_sw_ids_names[] = { |
| "sw0", "sw1", "sw2", "sw3" |
| }; |
| |
| int gpio_table_hw_ids[] = { |
| HW0, HW1, HW2, HW3, HW4, HW5, HW6, HW7 |
| }; |
| |
| const char *gpio_table_hw_ids_names[] = { |
| "hw0", "hw1", "hw2", "hw3", "hw4", "hw5", "hw6", "hw7" |
| }; |
| |
| static int get_board_id(int *ids, const char **c, int size, |
| bool *valid, u32 *id) |
| { |
| int i, ret, val; |
| |
| *valid = false; |
| |
| for (i = 0; i < size; i++) { |
| ret = gpio_request(ids[i], c[i]); |
| if (ret) { |
| printf("Can't request SWx gpios\n"); |
| return ret; |
| } |
| } |
| |
| for (i = 0; i < size; i++) { |
| ret = gpio_direction_input(ids[i]); |
| if (ret) { |
| printf("Can't set SWx gpios direction\n"); |
| return ret; |
| } |
| } |
| |
| for (i = 0; i < size; i++) { |
| val = gpio_get_value(ids[i]); |
| if (val < 0) { |
| printf("Can't get SW%d ID\n", i); |
| *id = 0; |
| return val; |
| } |
| *id |= val << i; |
| } |
| *valid = true; |
| |
| return 0; |
| } |
| |
| int dram_init(void) |
| { |
| gd->ram_size = imx_ddr_size(); |
| |
| return 0; |
| } |
| |
| #define PC MUX_PAD_CTRL(I2C_PAD_CTRL) |
| /* I2C1: TFA9879 */ |
| struct i2c_pads_info i2c_pad_info0 = { |
| .scl = { |
| .i2c_mode = MX6_PAD_EIM_D21__I2C1_SCL | PC, |
| .gpio_mode = MX6_PAD_EIM_D21__GPIO3_IO21 | PC, |
| .gp = IMX_GPIO_NR(3, 21) |
| }, |
| .sda = { |
| .i2c_mode = MX6_PAD_EIM_D28__I2C1_SDA | PC, |
| .gpio_mode = MX6_PAD_EIM_D28__GPIO3_IO28 | PC, |
| .gp = IMX_GPIO_NR(3, 28) |
| } |
| }; |
| |
| /* I2C2: TIVO TM4C123 */ |
| struct i2c_pads_info i2c_pad_info1 = { |
| .scl = { |
| .i2c_mode = MX6_PAD_EIM_EB2__I2C2_SCL | PC, |
| .gpio_mode = MX6_PAD_EIM_EB2__GPIO2_IO30 | PC, |
| .gp = IMX_GPIO_NR(2, 30) |
| }, |
| .sda = { |
| .i2c_mode = MX6_PAD_EIM_D16__I2C2_SDA | PC, |
| .gpio_mode = MX6_PAD_EIM_D16__GPIO3_IO16 | PC, |
| .gp = IMX_GPIO_NR(3, 16) |
| } |
| }; |
| |
| /* I2C3: PMIC PF0100, EEPROM AT24C256C */ |
| struct i2c_pads_info i2c_pad_info2 = { |
| .scl = { |
| .i2c_mode = MX6_PAD_EIM_D17__I2C3_SCL | PC, |
| .gpio_mode = MX6_PAD_EIM_D17__GPIO3_IO17 | PC, |
| .gp = IMX_GPIO_NR(3, 17) |
| }, |
| .sda = { |
| .i2c_mode = MX6_PAD_EIM_D18__I2C3_SDA | PC, |
| .gpio_mode = MX6_PAD_EIM_D18__GPIO3_IO18 | PC, |
| .gp = IMX_GPIO_NR(3, 18) |
| } |
| }; |
| |
| iomux_v3_cfg_t const misc_pads[] = { |
| /* Prod ID GPIO pins */ |
| MX6_PAD_NANDF_D4__GPIO2_IO04 | MUX_PAD_CTRL(NO_PAD_CTRL), |
| MX6_PAD_NANDF_D5__GPIO2_IO05 | MUX_PAD_CTRL(NO_PAD_CTRL), |
| MX6_PAD_NANDF_D6__GPIO2_IO06 | MUX_PAD_CTRL(NO_PAD_CTRL), |
| MX6_PAD_NANDF_D7__GPIO2_IO07 | MUX_PAD_CTRL(NO_PAD_CTRL), |
| |
| /* HW revision GPIO pins */ |
| MX6_PAD_NANDF_CLE__GPIO6_IO07 | MUX_PAD_CTRL(NO_PAD_CTRL), |
| MX6_PAD_NANDF_WP_B__GPIO6_IO09 | MUX_PAD_CTRL(NO_PAD_CTRL), |
| MX6_PAD_NANDF_RB0__GPIO6_IO10 | MUX_PAD_CTRL(NO_PAD_CTRL), |
| MX6_PAD_NANDF_CS0__GPIO6_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL), |
| MX6_PAD_KEY_ROW0__GPIO4_IO07 | MUX_PAD_CTRL(NO_PAD_CTRL), |
| MX6_PAD_KEY_ROW2__GPIO4_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL), |
| MX6_PAD_KEY_ROW3__GPIO4_IO13 | MUX_PAD_CTRL(NO_PAD_CTRL), |
| MX6_PAD_KEY_ROW4__GPIO4_IO15 | MUX_PAD_CTRL(NO_PAD_CTRL), |
| |
| /* XTALOSC */ |
| MX6_PAD_GPIO_3__XTALOSC_REF_CLK_24M | MUX_PAD_CTRL(NO_PAD_CTRL), |
| |
| /* Emergency recovery pin */ |
| MX6_PAD_EIM_D29__GPIO3_IO29 | MUX_PAD_CTRL(NO_PAD_CTRL), |
| }; |
| |
| #ifdef CONFIG_FSL_ESDHC_IMX |
| struct fsl_esdhc_cfg usdhc_cfg[1] = { |
| { USDHC4_BASE_ADDR, 0, 8, }, |
| }; |
| |
| int board_mmc_getcd(struct mmc *mmc) |
| { |
| return 1; |
| } |
| |
| int board_mmc_init(bd_t *bis) |
| { |
| displ5_set_iomux_usdhc(); |
| |
| usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK); |
| |
| return fsl_esdhc_initialize(bis, &usdhc_cfg[0]); |
| } |
| #endif /* CONFIG_FSL_ESDHC_IMX */ |
| |
| static void displ5_setup_ecspi(void) |
| { |
| int ret; |
| |
| displ5_set_iomux_ecspi(); |
| |
| ret = gpio_request(IMX_GPIO_NR(5, 29), "spi2_cs0"); |
| if (!ret) |
| gpio_direction_output(IMX_GPIO_NR(5, 29), 1); |
| |
| ret = gpio_request(IMX_GPIO_NR(7, 0), "spi2_#wp"); |
| if (!ret) |
| gpio_direction_output(IMX_GPIO_NR(7, 0), 1); |
| } |
| |
| #ifdef CONFIG_FEC_MXC |
| iomux_v3_cfg_t const enet_pads[] = { |
| MX6_PAD_ENET_TXD1__ENET_1588_EVENT0_IN | MUX_PAD_CTRL(ENET_PAD_CTRL), |
| MX6_PAD_ENET_RXD1__ENET_1588_EVENT3_OUT | MUX_PAD_CTRL(ENET_PAD_CTRL), |
| MX6_PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL), |
| MX6_PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL), |
| MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL), |
| |
| /* for old evalboard with R159 present and R160 not populated */ |
| MX6_PAD_GPIO_16__ENET_REF_CLK | MUX_PAD_CTRL(NO_PAD_CTRL), |
| |
| MX6_PAD_RGMII_TXC__RGMII_TXC | MUX_PAD_CTRL(ENET_PAD_CTRL), |
| MX6_PAD_RGMII_TD0__RGMII_TD0 | MUX_PAD_CTRL(ENET_PAD_CTRL), |
| MX6_PAD_RGMII_TD1__RGMII_TD1 | MUX_PAD_CTRL(ENET_PAD_CTRL), |
| MX6_PAD_RGMII_TD2__RGMII_TD2 | MUX_PAD_CTRL(ENET_PAD_CTRL), |
| MX6_PAD_RGMII_TD3__RGMII_TD3 | MUX_PAD_CTRL(ENET_PAD_CTRL), |
| MX6_PAD_RGMII_TX_CTL__RGMII_TX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL), |
| |
| MX6_PAD_RGMII_RXC__RGMII_RXC | MUX_PAD_CTRL(ENET_PAD_CTRL), |
| MX6_PAD_RGMII_RD0__RGMII_RD0 | MUX_PAD_CTRL(ENET_PAD_CTRL), |
| MX6_PAD_RGMII_RD1__RGMII_RD1 | MUX_PAD_CTRL(ENET_PAD_CTRL), |
| MX6_PAD_RGMII_RD2__RGMII_RD2 | MUX_PAD_CTRL(ENET_PAD_CTRL), |
| MX6_PAD_RGMII_RD3__RGMII_RD3 | MUX_PAD_CTRL(ENET_PAD_CTRL), |
| MX6_PAD_RGMII_RX_CTL__RGMII_RX_CTL | MUX_PAD_CTRL(ENET_PAD_CTRL), |
| /*INT#_GBE*/ |
| MX6_PAD_ENET_TX_EN__GPIO1_IO28 | MUX_PAD_CTRL(NO_PAD_CTRL), |
| }; |
| |
| static void setup_iomux_enet(void) |
| { |
| SETUP_IOMUX_PADS(enet_pads); |
| gpio_direction_input(IMX_GPIO_NR(1, 28)); /*INT#_GBE*/ |
| } |
| |
| static int setup_mac_from_fuse(void) |
| { |
| unsigned char enetaddr[6]; |
| int ret; |
| |
| ret = eth_env_get_enetaddr("ethaddr", enetaddr); |
| if (ret) /* ethaddr is already set */ |
| return 0; |
| |
| imx_get_mac_from_fuse(0, enetaddr); |
| |
| if (is_valid_ethaddr(enetaddr)) { |
| eth_env_set_enetaddr("ethaddr", enetaddr); |
| return 0; |
| } |
| |
| return 0; |
| } |
| |
| int board_eth_init(bd_t *bd) |
| { |
| struct phy_device *phydev; |
| struct mii_dev *bus; |
| int ret; |
| |
| setup_iomux_enet(); |
| |
| iomuxc_set_rgmii_io_voltage(DDR_SEL_1P5V_IO); |
| |
| ret = enable_fec_anatop_clock(0, ENET_125MHZ); |
| if (ret) |
| return ret; |
| |
| setup_mac_from_fuse(); |
| |
| bus = fec_get_miibus(IMX_FEC_BASE, -1); |
| if (!bus) |
| return -ENODEV; |
| |
| /* |
| * We use here the "rgmii-id" mode of operation and allow M88E1512 |
| * PHY to use its internally callibrated RX/TX delays |
| */ |
| phydev = phy_find_by_mask(bus, 0xffffffff /* (0xf << 4) */, |
| PHY_INTERFACE_MODE_RGMII_ID); |
| if (!phydev) { |
| ret = -ENODEV; |
| goto err_phy; |
| } |
| |
| /* display5 due to PCB routing can only work with 100 Mbps */ |
| phydev->advertising &= ~(ADVERTISED_1000baseX_Half | |
| ADVERTISED_1000baseX_Full | |
| SUPPORTED_1000baseT_Half | |
| SUPPORTED_1000baseT_Full); |
| |
| ret = fec_probe(bd, -1, IMX_FEC_BASE, bus, phydev); |
| if (ret) |
| goto err_sw; |
| |
| return 0; |
| |
| err_sw: |
| free(phydev); |
| err_phy: |
| mdio_unregister(bus); |
| free(bus); |
| return ret; |
| } |
| #endif /* CONFIG_FEC_MXC */ |
| |
| /* |
| * Do not overwrite the console |
| * Always use serial for U-Boot console |
| */ |
| int overwrite_console(void) |
| { |
| return 1; |
| } |
| |
| #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP) |
| int ft_board_setup(void *blob, bd_t *bd) |
| { |
| fdt_fixup_ethernet(blob); |
| return 0; |
| } |
| #endif |
| |
| int board_init(void) |
| { |
| debug("board init\n"); |
| /* address of boot parameters */ |
| gd->bd->bi_boot_params = PHYS_SDRAM + 0x100; |
| |
| /* Setup iomux for non console UARTS */ |
| displ5_set_iomux_uart(); |
| |
| displ5_setup_ecspi(); |
| |
| SETUP_IOMUX_PADS(misc_pads); |
| |
| get_board_id(gpio_table_sw_ids, &gpio_table_sw_ids_names[0], |
| ARRAY_SIZE(gpio_table_sw_ids), &sw_ids_valid, &unit_id); |
| debug("SWx unit_id 0x%x\n", unit_id); |
| |
| get_board_id(gpio_table_hw_ids, &gpio_table_hw_ids_names[0], |
| ARRAY_SIZE(gpio_table_hw_ids), &hw_ids_valid, &cpu_id); |
| debug("HWx cpu_id 0x%x\n", cpu_id); |
| |
| if (hw_ids_valid && sw_ids_valid) |
| printf("ID: unit type 0x%x rev 0x%x\n", unit_id, cpu_id); |
| |
| udelay(25); |
| |
| setup_i2c(0, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info0); |
| setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1); |
| setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2); |
| |
| return 0; |
| } |
| |
| #ifdef CONFIG_CMD_BMODE |
| static const struct boot_mode board_boot_modes[] = { |
| /* eMMC, USDHC-4, 8-bit bus width */ |
| /* SPI-NOR, ECSPI-2 SS0, 3-bytes addressing */ |
| {"emmc", MAKE_CFGVAL(0x60, 0x58, 0x00, 0x00)}, |
| {"spinor", MAKE_CFGVAL(0x30, 0x00, 0x00, 0x09)}, |
| {NULL, 0}, |
| }; |
| |
| static void setup_boot_modes(void) |
| { |
| add_board_boot_modes(board_boot_modes); |
| } |
| #else |
| static inline void setup_boot_modes(void) {} |
| #endif |
| |
| int misc_init_r(void) |
| { |
| int ret; |
| |
| setup_boot_modes(); |
| |
| ret = gpio_request(EM_PAD, "Emergency_PAD"); |
| if (ret) { |
| printf("Can't request emergency PAD gpio\n"); |
| return ret; |
| } |
| |
| ret = gpio_direction_input(EM_PAD); |
| if (ret) { |
| printf("Can't set emergency PAD direction\n"); |
| return ret; |
| } |
| |
| return 0; |
| } |