board/bachmann/ot1200/ot1200.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (C) 2010-2013 Freescale Semiconductor, Inc.
   4  * Copyright (C) 2014, Bachmann electronic GmbH
   5  */
   6
   7 #include <common.h>
   8 #include <net.h>
   9 #include <asm/io.h>
  10 #include <asm/arch/clock.h>
  11 #include <asm/arch/imx-regs.h>
  12 #include <asm/arch/iomux.h>
  13 #include <env.h>
  14 #include <malloc.h>
  15 #include <asm/arch/mx6-pins.h>
  16 #include <asm/mach-imx/iomux-v3.h>
  17 #include <asm/mach-imx/sata.h>
  18 #include <asm/mach-imx/mxc_i2c.h>
  19 #include <asm/mach-imx/boot_mode.h>
  20 #include <asm/arch/crm_regs.h>
  21 #include <asm/arch/sys_proto.h>
  22 #include <mmc.h>
  23 #include <fsl_esdhc_imx.h>
  24 #include <netdev.h>
  25 #include <i2c.h>
  26 #include <pca953x.h>
  27 #include <asm/gpio.h>
  28 #include <phy.h>
  29
  30 DECLARE_GLOBAL_DATA_PTR;
  31
  32 #define OUTPUT_40OHM    (PAD_CTL_SPEED_MED|PAD_CTL_DSE_40ohm)
  33
  34 #define UART_PAD_CTRL   (PAD_CTL_PUS_100K_UP |                  \
  35         OUTPUT_40OHM | PAD_CTL_SRE_FAST | PAD_CTL_HYS)
  36
  37 #define USDHC_PAD_CTRL  (PAD_CTL_PUS_47K_UP |                   \
  38         PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm |                 \
  39         PAD_CTL_SRE_FAST | PAD_CTL_HYS)
  40
  41 #define ENET_PAD_CTRL   (PAD_CTL_PUS_100K_UP | OUTPUT_40OHM |   \
  42         PAD_CTL_HYS)
  43
  44 #define SPI_PAD_CTRL    (PAD_CTL_HYS | OUTPUT_40OHM |           \
  45         PAD_CTL_SRE_FAST)
  46
  47 #define I2C_PAD_CTRL    (PAD_CTL_PUS_100K_UP | OUTPUT_40OHM |   \
  48         PAD_CTL_HYS | PAD_CTL_ODE | PAD_CTL_SRE_FAST)
  49
  50 int dram_init(void)
  51 {
  52         gd->ram_size = imx_ddr_size();
  53
  54         return 0;
  55 }
  56
  57 static iomux_v3_cfg_t const uart1_pads[] = {
  58         MX6_PAD_CSI0_DAT10__UART1_TX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
  59         MX6_PAD_CSI0_DAT11__UART1_RX_DATA | MUX_PAD_CTRL(UART_PAD_CTRL),
  60 };
  61
  62 static void setup_iomux_uart(void)
  63 {
  64         imx_iomux_v3_setup_multiple_pads(uart1_pads, ARRAY_SIZE(uart1_pads));
  65 }
  66
  67 static iomux_v3_cfg_t const enet_pads[] = {
  68         MX6_PAD_KEY_ROW1__ENET_COL | MUX_PAD_CTRL(ENET_PAD_CTRL),
  69         MX6_PAD_KEY_COL3__ENET_CRS | MUX_PAD_CTRL(ENET_PAD_CTRL),
  70         MX6_PAD_ENET_MDIO__ENET_MDIO | MUX_PAD_CTRL(ENET_PAD_CTRL),
  71         MX6_PAD_ENET_MDC__ENET_MDC | MUX_PAD_CTRL(ENET_PAD_CTRL),
  72         MX6_PAD_GPIO_16__ENET_REF_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL),
  73         MX6_PAD_GPIO_18__ENET_RX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL),
  74         MX6_PAD_ENET_RXD0__ENET_RX_DATA0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
  75         MX6_PAD_ENET_RXD1__ENET_RX_DATA1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
  76         MX6_PAD_KEY_COL2__ENET_RX_DATA2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
  77         MX6_PAD_KEY_COL0__ENET_RX_DATA3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
  78         MX6_PAD_ENET_CRS_DV__ENET_RX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
  79         MX6_PAD_ENET_REF_CLK__ENET_TX_CLK | MUX_PAD_CTRL(ENET_PAD_CTRL),
  80         MX6_PAD_ENET_TXD0__ENET_TX_DATA0 | MUX_PAD_CTRL(ENET_PAD_CTRL),
  81         MX6_PAD_ENET_TXD1__ENET_TX_DATA1 | MUX_PAD_CTRL(ENET_PAD_CTRL),
  82         MX6_PAD_KEY_ROW2__ENET_TX_DATA2 | MUX_PAD_CTRL(ENET_PAD_CTRL),
  83         MX6_PAD_KEY_ROW0__ENET_TX_DATA3 | MUX_PAD_CTRL(ENET_PAD_CTRL),
  84         MX6_PAD_ENET_TX_EN__ENET_TX_EN | MUX_PAD_CTRL(ENET_PAD_CTRL),
  85 };
  86
  87 static void setup_iomux_enet(void)
  88 {
  89         imx_iomux_v3_setup_multiple_pads(enet_pads, ARRAY_SIZE(enet_pads));
  90 }
  91
  92 static iomux_v3_cfg_t const ecspi1_pads[] = {
  93         MX6_PAD_DISP0_DAT3__ECSPI3_SS0  | MUX_PAD_CTRL(SPI_PAD_CTRL),
  94         MX6_PAD_DISP0_DAT4__ECSPI3_SS1  | MUX_PAD_CTRL(SPI_PAD_CTRL),
  95         MX6_PAD_DISP0_DAT2__ECSPI3_MISO | MUX_PAD_CTRL(SPI_PAD_CTRL),
  96         MX6_PAD_DISP0_DAT1__ECSPI3_MOSI | MUX_PAD_CTRL(SPI_PAD_CTRL),
  97         MX6_PAD_DISP0_DAT0__ECSPI3_SCLK | MUX_PAD_CTRL(SPI_PAD_CTRL),
  98 };
  99
 100 static void setup_iomux_spi(void)
 101 {
 102         imx_iomux_v3_setup_multiple_pads(ecspi1_pads, ARRAY_SIZE(ecspi1_pads));
 103 }
 104
 105 int board_spi_cs_gpio(unsigned bus, unsigned cs)
 106 {
 107         return (bus == 2 && cs == 0) ? (IMX_GPIO_NR(1, 3)) : -1;
 108 }
 109
 110 static iomux_v3_cfg_t const feature_pads[] = {
 111         /* SD card detect */
 112         MX6_PAD_GPIO_4__GPIO1_IO04 | MUX_PAD_CTRL(PAD_CTL_PUS_100K_DOWN),
 113
 114         /* eMMC soldered? */
 115         MX6_PAD_GPIO_19__GPIO4_IO05 | MUX_PAD_CTRL(PAD_CTL_PUS_100K_UP),
 116 };
 117
 118 static void setup_iomux_features(void)
 119 {
 120         imx_iomux_v3_setup_multiple_pads(feature_pads,
 121                 ARRAY_SIZE(feature_pads));
 122 }
 123
 124 #define PC MUX_PAD_CTRL(I2C_PAD_CTRL)
 125
 126 /* I2C2 - EEPROM */
 127 static struct i2c_pads_info i2c_pad_info1 = {
 128         .scl = {
 129                 .i2c_mode = MX6_PAD_EIM_EB2__I2C2_SCL | PC,
 130                 .gpio_mode = MX6_PAD_EIM_EB2__GPIO2_IO30 | PC,
 131                 .gp = IMX_GPIO_NR(2, 30)
 132         },
 133         .sda = {
 134                 .i2c_mode = MX6_PAD_EIM_D16__I2C2_SDA | PC,
 135                 .gpio_mode = MX6_PAD_EIM_D16__GPIO3_IO16 | PC,
 136                 .gp = IMX_GPIO_NR(3, 16)
 137         }
 138 };
 139
 140 /* I2C3 - IO expander  */
 141 static struct i2c_pads_info i2c_pad_info2 = {
 142         .scl = {
 143                 .i2c_mode = MX6_PAD_EIM_D17__I2C3_SCL | PC,
 144                 .gpio_mode = MX6_PAD_EIM_D17__GPIO3_IO17 | PC,
 145                 .gp = IMX_GPIO_NR(3, 17)
 146         },
 147         .sda = {
 148                 .i2c_mode = MX6_PAD_EIM_D18__I2C3_SDA | PC,
 149                 .gpio_mode = MX6_PAD_EIM_D18__GPIO3_IO18 | PC,
 150                 .gp = IMX_GPIO_NR(3, 18)
 151         }
 152 };
 153
 154 static void setup_iomux_i2c(void)
 155 {
 156         setup_i2c(1, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info1);
 157         setup_i2c(2, CONFIG_SYS_I2C_SPEED, 0x7f, &i2c_pad_info2);
 158 }
 159
 160 static void ccgr_init(void)
 161 {
 162         struct mxc_ccm_reg *ccm = (struct mxc_ccm_reg *)CCM_BASE_ADDR;
 163
 164         writel(0x00C03F3F, &ccm->CCGR0);
 165         writel(0x0030FC33, &ccm->CCGR1);
 166         writel(0x0FFFC000, &ccm->CCGR2);
 167         writel(0x3FF00000, &ccm->CCGR3);
 168         writel(0x00FFF300, &ccm->CCGR4);
 169         writel(0x0F0000C3, &ccm->CCGR5);
 170         writel(0x000003FF, &ccm->CCGR6);
 171 }
 172
 173 int board_early_init_f(void)
 174 {
 175         ccgr_init();
 176         gpr_init();
 177
 178         setup_iomux_uart();
 179         setup_iomux_spi();
 180         setup_iomux_i2c();
 181         setup_iomux_features();
 182
 183         return 0;
 184 }
 185
 186 static iomux_v3_cfg_t const usdhc3_pads[] = {
 187         MX6_PAD_SD3_CLK__SD3_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 188         MX6_PAD_SD3_CMD__SD3_CMD   | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 189         MX6_PAD_SD3_DAT0__SD3_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 190         MX6_PAD_SD3_DAT1__SD3_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 191         MX6_PAD_SD3_DAT2__SD3_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 192         MX6_PAD_SD3_DAT3__SD3_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 193         MX6_PAD_SD3_DAT4__SD3_DATA4 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 194         MX6_PAD_SD3_DAT5__SD3_DATA5 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 195         MX6_PAD_SD3_DAT6__SD3_DATA6 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 196         MX6_PAD_SD3_DAT7__SD3_DATA7 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 197         MX6_PAD_SD3_RST__SD3_RESET | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 198 };
 199
 200 iomux_v3_cfg_t const usdhc4_pads[] = {
 201         MX6_PAD_SD4_CLK__SD4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 202         MX6_PAD_SD4_CMD__SD4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 203         MX6_PAD_SD4_DAT0__SD4_DATA0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 204         MX6_PAD_SD4_DAT1__SD4_DATA1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 205         MX6_PAD_SD4_DAT2__SD4_DATA2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 206         MX6_PAD_SD4_DAT3__SD4_DATA3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
 207 };
 208
 209 int board_mmc_getcd(struct mmc *mmc)
 210 {
 211         struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
 212         int ret;
 213
 214         if (cfg->esdhc_base == USDHC3_BASE_ADDR) {
 215                 gpio_direction_input(IMX_GPIO_NR(4, 5));
 216                 ret = gpio_get_value(IMX_GPIO_NR(4, 5));
 217         } else {
 218                 gpio_direction_input(IMX_GPIO_NR(1, 5));
 219                 ret = !gpio_get_value(IMX_GPIO_NR(1, 5));
 220         }
 221
 222         return ret;
 223 }
 224
 225 struct fsl_esdhc_cfg usdhc_cfg[2] = {
 226         {USDHC3_BASE_ADDR},
 227         {USDHC4_BASE_ADDR},
 228 };
 229
 230 int board_mmc_init(bd_t *bis)
 231 {
 232         int ret;
 233         u32 index = 0;
 234
 235         usdhc_cfg[0].sdhc_clk = mxc_get_clock(MXC_ESDHC3_CLK);
 236         usdhc_cfg[1].sdhc_clk = mxc_get_clock(MXC_ESDHC4_CLK);
 237
 238         usdhc_cfg[0].max_bus_width = 8;
 239         usdhc_cfg[1].max_bus_width = 4;
 240
 241         for (index = 0; index < CONFIG_SYS_FSL_USDHC_NUM; ++index) {
 242                 switch (index) {
 243                 case 0:
 244                         imx_iomux_v3_setup_multiple_pads(
 245                                 usdhc3_pads, ARRAY_SIZE(usdhc3_pads));
 246                         break;
 247                 case 1:
 248                         imx_iomux_v3_setup_multiple_pads(
 249                                 usdhc4_pads, ARRAY_SIZE(usdhc4_pads));
 250                         break;
 251                 default:
 252                         printf("Warning: you configured more USDHC controllers"
 253                                 "(%d) then supported by the board (%d)\n",
 254                                 index + 1, CONFIG_SYS_FSL_USDHC_NUM);
 255                         return -EINVAL;
 256                 }
 257
 258                 ret = fsl_esdhc_initialize(bis, &usdhc_cfg[index]);
 259                 if (ret)
 260                         return ret;
 261         }
 262
 263         return 0;
 264 }
 265
 266 static void leds_on(void)
 267 {
 268         /* turn on all possible leds connected via GPIO expander */
 269         i2c_set_bus_num(2);
 270         pca953x_set_dir(CONFIG_SYS_I2C_PCA953X_ADDR, 0xffff, PCA953X_DIR_OUT);
 271         pca953x_set_val(CONFIG_SYS_I2C_PCA953X_ADDR, 0xffff, 0x0);
 272 }
 273
 274 static void backlight_lcd_off(void)
 275 {
 276         unsigned gpio = IMX_GPIO_NR(2, 0);
 277         gpio_direction_output(gpio, 0);
 278
 279         gpio = IMX_GPIO_NR(2, 3);
 280         gpio_direction_output(gpio, 0);
 281 }
 282
 283 int board_eth_init(bd_t *bis)
 284 {
 285         uint32_t base = IMX_FEC_BASE;
 286         struct mii_dev *bus = NULL;
 287         struct phy_device *phydev = NULL;
 288         int ret;
 289
 290         setup_iomux_enet();
 291
 292         bus = fec_get_miibus(base, -1);
 293         if (!bus)
 294                 return -EINVAL;
 295
 296         /* scan phy 0 and 5 */
 297         phydev = phy_find_by_mask(bus, 0x21, PHY_INTERFACE_MODE_RGMII);
 298         if (!phydev) {
 299                 ret = -EINVAL;
 300                 goto free_bus;
 301         }
 302
 303         /* depending on the phy address we can detect our board version */
 304         if (phydev->addr == 0)
 305                 env_set("boardver", "");
 306         else
 307                 env_set("boardver", "mr");
 308
 309         printf("using phy at %d\n", phydev->addr);
 310         ret = fec_probe(bis, -1, base, bus, phydev);
 311         if (ret)
 312                 goto free_phydev;
 313
 314         return 0;
 315
 316 free_phydev:
 317         free(phydev);
 318 free_bus:
 319         free(bus);
 320         return ret;
 321 }
 322
 323 int board_init(void)
 324 {
 325         gd->bd->bi_boot_params = PHYS_SDRAM + 0x100;
 326
 327         backlight_lcd_off();
 328
 329         leds_on();
 330
 331 #ifdef CONFIG_SATA
 332         setup_sata();
 333 #endif
 334
 335         return 0;
 336 }
 337
 338 int checkboard(void)
 339 {
 340         puts("Board: "CONFIG_SYS_BOARD"\n");
 341         return 0;
 342 }
 343
 344 #ifdef CONFIG_CMD_BMODE
 345 static const struct boot_mode board_boot_modes[] = {
 346         /* 4 bit bus width */
 347         {"mmc0",        MAKE_CFGVAL(0x40, 0x30, 0x00, 0x00)},
 348         {NULL,          0},
 349 };
 350 #endif
 351
 352 int misc_init_r(void)
 353 {
 354 #ifdef CONFIG_CMD_BMODE
 355         add_board_boot_modes(board_boot_modes);
 356 #endif
 357         return 0;
 358 }