uboot/board/liebherr/display5/display5.c
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   1// SPDX-License-Identifier: GPL-2.0+
   2/*
   3 * Copyright (C) 2017 DENX Software Engineering
   4 * Lukasz Majewski, DENX Software Engineering, lukma@denx.de
   5 */
   6
   7#include <common.h>
   8#include <dm.h>
   9#include <fdt_support.h>
  10#include <init.h>
  11#include <log.h>
  12#include <asm/global_data.h>
  13#include <asm/io.h>
  14#include <asm/arch/clock.h>
  15#include <asm/arch/imx-regs.h>
  16#include <asm/arch/iomux.h>
  17#include <asm/arch/mx6-pins.h>
  18#include <asm/arch/mx6-ddr.h>
  19#include <asm/arch/sys_proto.h>
  20#include <env.h>
  21#include <errno.h>
  22#include <asm/gpio.h>
  23#include <malloc.h>
  24#include <asm/mach-imx/iomux-v3.h>
  25#include <asm/mach-imx/boot_mode.h>
  26#include <miiphy.h>
  27#include <netdev.h>
  28#include <i2c.h>
  29#include <linux/delay.h>
  30
  31#include <dm/platform_data/serial_mxc.h>
  32#include <dm/platdata.h>
  33
  34#include "common.h"
  35
  36DECLARE_GLOBAL_DATA_PTR;
  37
  38static bool hw_ids_valid;
  39static bool sw_ids_valid;
  40static u32 cpu_id;
  41static u32 unit_id;
  42
  43const char *gpio_table_sw_names[] = {
  44        "GPIO2_4", "GPIO2_5", "GPIO2_6", "GPIO2_7"
  45};
  46
  47const char *gpio_table_sw_ids_names[] = {
  48        "sw0", "sw1", "sw2", "sw3"
  49};
  50
  51const char *gpio_table_hw_names[] = {
  52        "GPIO6_7", "GPIO6_9", "GPIO6_10", "GPIO6_11",
  53        "GPIO4_7", "GPIO4_11", "GPIO4_13", "GPIO4_15"
  54};
  55
  56const char *gpio_table_hw_ids_names[] = {
  57        "hw0", "hw1", "hw2", "hw3", "hw4", "hw5", "hw6", "hw7"
  58};
  59
  60static int get_board_id(const char **pin_names, const char **ids_names,
  61                        int size, bool *valid, u32 *id)
  62{
  63        struct gpio_desc desc;
  64        int i, ret, val;
  65
  66        *valid = false;
  67
  68        for (i = 0; i < size; i++) {
  69                memset(&desc, 0, sizeof(desc));
  70
  71                ret = dm_gpio_lookup_name(pin_names[i], &desc);
  72                if (ret) {
  73                        printf("Can't lookup request SWx gpios\n");
  74                        return ret;
  75                }
  76
  77                ret = dm_gpio_request(&desc, ids_names[i]);
  78                if (ret) {
  79                        printf("Can't lookup request SWx gpios\n");
  80                        return ret;
  81                }
  82
  83                dm_gpio_set_dir_flags(&desc, GPIOD_IS_IN);
  84
  85                val = dm_gpio_get_value(&desc);
  86                if (val < 0) {
  87                        printf("Can't get SW%d ID\n", i);
  88                        *id = 0;
  89                        return val;
  90                }
  91                *id |= val << i;
  92        }
  93        *valid = true;
  94
  95        return 0;
  96}
  97
  98int dram_init(void)
  99{
 100        gd->ram_size = imx_ddr_size();
 101
 102        return 0;
 103}
 104
 105iomux_v3_cfg_t const misc_pads[] = {
 106        /* Prod ID GPIO pins */
 107        MX6_PAD_NANDF_D4__GPIO2_IO04    | MUX_PAD_CTRL(NO_PAD_CTRL),
 108        MX6_PAD_NANDF_D5__GPIO2_IO05    | MUX_PAD_CTRL(NO_PAD_CTRL),
 109        MX6_PAD_NANDF_D6__GPIO2_IO06    | MUX_PAD_CTRL(NO_PAD_CTRL),
 110        MX6_PAD_NANDF_D7__GPIO2_IO07    | MUX_PAD_CTRL(NO_PAD_CTRL),
 111
 112        /* HW revision GPIO pins */
 113        MX6_PAD_NANDF_CLE__GPIO6_IO07   | MUX_PAD_CTRL(NO_PAD_CTRL),
 114        MX6_PAD_NANDF_WP_B__GPIO6_IO09  | MUX_PAD_CTRL(NO_PAD_CTRL),
 115        MX6_PAD_NANDF_RB0__GPIO6_IO10   | MUX_PAD_CTRL(NO_PAD_CTRL),
 116        MX6_PAD_NANDF_CS0__GPIO6_IO11   | MUX_PAD_CTRL(NO_PAD_CTRL),
 117        MX6_PAD_KEY_ROW0__GPIO4_IO07 | MUX_PAD_CTRL(NO_PAD_CTRL),
 118        MX6_PAD_KEY_ROW2__GPIO4_IO11 | MUX_PAD_CTRL(NO_PAD_CTRL),
 119        MX6_PAD_KEY_ROW3__GPIO4_IO13 | MUX_PAD_CTRL(NO_PAD_CTRL),
 120        MX6_PAD_KEY_ROW4__GPIO4_IO15 | MUX_PAD_CTRL(NO_PAD_CTRL),
 121
 122        /* XTALOSC */
 123        MX6_PAD_GPIO_3__XTALOSC_REF_CLK_24M | MUX_PAD_CTRL(NO_PAD_CTRL),
 124
 125        /* Emergency recovery pin */
 126        MX6_PAD_EIM_D29__GPIO3_IO29 | MUX_PAD_CTRL(NO_PAD_CTRL),
 127};
 128
 129/*
 130 * Do not overwrite the console
 131 * Always use serial for U-Boot console
 132 */
 133int overwrite_console(void)
 134{
 135        return 1;
 136}
 137
 138#if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_OF_BOARD_SETUP)
 139int ft_board_setup(void *blob, struct bd_info *bd)
 140{
 141        fdt_fixup_ethernet(blob);
 142        return 0;
 143}
 144#endif
 145
 146int board_phy_config(struct phy_device *phydev)
 147{
 148        /* display5 due to PCB routing can only work with 100 Mbps */
 149        phydev->advertising &= ~(ADVERTISED_1000baseX_Half |
 150                                 ADVERTISED_1000baseX_Full |
 151                                 SUPPORTED_1000baseT_Half |
 152                                 SUPPORTED_1000baseT_Full);
 153
 154        if (phydev->drv->config)
 155                return phydev->drv->config(phydev);
 156
 157        return 0;
 158}
 159
 160int board_init(void)
 161{
 162        struct gpio_desc phy_int_gbe, spi2_wp;
 163        int ret;
 164
 165        debug("board init\n");
 166        /* address of boot parameters */
 167        gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
 168
 169        /* Setup misc (application specific) stuff */
 170        SETUP_IOMUX_PADS(misc_pads);
 171
 172        get_board_id(gpio_table_sw_names, &gpio_table_sw_ids_names[0],
 173                     ARRAY_SIZE(gpio_table_sw_names), &sw_ids_valid, &unit_id);
 174        debug("SWx unit_id 0x%x\n", unit_id);
 175
 176        get_board_id(gpio_table_hw_names, &gpio_table_hw_ids_names[0],
 177                     ARRAY_SIZE(gpio_table_hw_names), &hw_ids_valid, &cpu_id);
 178        debug("HWx cpu_id 0x%x\n", cpu_id);
 179
 180        if (hw_ids_valid && sw_ids_valid)
 181                printf("ID:    unit type 0x%x rev 0x%x\n", unit_id, cpu_id);
 182
 183        udelay(25);
 184
 185        /* Setup low level FEC (ETH) */
 186        ret = dm_gpio_lookup_name("GPIO1_28", &phy_int_gbe);
 187        if (ret) {
 188                printf("Cannot get GPIO1_28\n");
 189        } else {
 190                ret = dm_gpio_request(&phy_int_gbe, "INT_GBE");
 191                if (!ret)
 192                        dm_gpio_set_dir_flags(&phy_int_gbe, GPIOD_IS_IN);
 193        }
 194
 195        iomuxc_set_rgmii_io_voltage(DDR_SEL_1P5V_IO);
 196        enable_fec_anatop_clock(0, ENET_125MHZ);
 197
 198        /* Setup #WP for SPI-NOR memory */
 199        ret = dm_gpio_lookup_name("GPIO7_0", &spi2_wp);
 200        if (ret) {
 201                printf("Cannot get GPIO7_0\n");
 202        } else {
 203                ret = dm_gpio_request(&spi2_wp, "spi2_#wp");
 204                if (!ret)
 205                        dm_gpio_set_dir_flags(&spi2_wp, GPIOD_IS_OUT |
 206                                              GPIOD_IS_OUT_ACTIVE);
 207        }
 208
 209        return 0;
 210}
 211
 212#ifdef CONFIG_CMD_BMODE
 213static const struct boot_mode board_boot_modes[] = {
 214        /* eMMC, USDHC-4, 8-bit bus width */
 215        /* SPI-NOR, ECSPI-2 SS0, 3-bytes addressing */
 216        {"emmc",    MAKE_CFGVAL(0x60, 0x58, 0x00, 0x00)},
 217        {"spinor",  MAKE_CFGVAL(0x30, 0x00, 0x00, 0x09)},
 218        {NULL,  0},
 219};
 220
 221static void setup_boot_modes(void)
 222{
 223        add_board_boot_modes(board_boot_modes);
 224}
 225#else
 226static inline void setup_boot_modes(void) {}
 227#endif
 228
 229int misc_init_r(void)
 230{
 231        struct gpio_desc em_pad;
 232        int ret;
 233
 234        setup_boot_modes();
 235
 236        ret = dm_gpio_lookup_name("GPIO3_29", &em_pad);
 237        if (ret) {
 238                printf("Can't find emergency PAD gpio\n");
 239                return ret;
 240        }
 241
 242        ret = dm_gpio_request(&em_pad, "Emergency_PAD");
 243        if (ret) {
 244                printf("Can't request emergency PAD gpio\n");
 245                return ret;
 246        }
 247
 248        dm_gpio_set_dir_flags(&em_pad, GPIOD_IS_IN);
 249
 250        return 0;
 251}
 252