board/karo/tx53/tx53.c

   1 /*
   2  * Copyright (C) 2011-2013 Lothar Waßmann <LW@KARO-electronics.de>
   3  * based on: board/freescale/mx28_evk.c (C) 2010 Freescale Semiconductor, Inc.
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License
  10  * version 2 as published by the Free Software Foundation.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  */
  18
  19 #include <common.h>
  20 #include <errno.h>
  21 #include <libfdt.h>
  22 #include <fdt_support.h>
  23 #include <i2c.h>
  24 #include <lcd.h>
  25 #include <netdev.h>
  26 #include <mmc.h>
  27 #include <fsl_esdhc.h>
  28 #include <video_fb.h>
  29 #include <ipu.h>
  30 #include <mxcfb.h>
  31 #include <linux/fb.h>
  32 #include <asm/io.h>
  33 #include <asm/gpio.h>
  34 #include <asm/arch/iomux-mx53.h>
  35 #include <asm/arch/clock.h>
  36 #include <asm/arch/imx-regs.h>
  37 #include <asm/arch/crm_regs.h>
  38 #include <asm/arch/sys_proto.h>
  39
  40 #include "../common/karo.h"
  41
  42 #define TX53_FEC_RST_GPIO       IMX_GPIO_NR(7, 6)
  43 #define TX53_FEC_PWR_GPIO       IMX_GPIO_NR(3, 20)
  44 #define TX53_FEC_INT_GPIO       IMX_GPIO_NR(2, 4)
  45 #define TX53_LED_GPIO           IMX_GPIO_NR(2, 20)
  46
  47 #define TX53_LCD_PWR_GPIO       IMX_GPIO_NR(2, 31)
  48 #define TX53_LCD_RST_GPIO       IMX_GPIO_NR(3, 29)
  49 #define TX53_LCD_BACKLIGHT_GPIO IMX_GPIO_NR(1, 1)
  50
  51 #define TX53_RESET_OUT_GPIO     IMX_GPIO_NR(7, 12)
  52
  53 DECLARE_GLOBAL_DATA_PTR;
  54
  55 #define MX53_GPIO_PAD_CTRL      MUX_PAD_CTRL(PAD_CTL_PKE | PAD_CTL_PUE | \
  56                                 PAD_CTL_DSE_HIGH | PAD_CTL_PUS_22K_UP)
  57
  58 #define TX53_SDHC_PAD_CTRL      MUX_PAD_CTRL(PAD_CTL_HYS | PAD_CTL_DSE_HIGH |   \
  59                                 PAD_CTL_SRE_FAST | PAD_CTL_PUS_47K_UP)
  60
  61 static iomux_v3_cfg_t tx53_pads[] = {
  62         /* NAND flash pads are set up in lowlevel_init.S */
  63
  64         /* UART pads */
  65 #if CONFIG_MXC_UART_BASE == UART1_BASE
  66         MX53_PAD_PATA_DIOW__UART1_TXD_MUX,
  67         MX53_PAD_PATA_DMACK__UART1_RXD_MUX,
  68         MX53_PAD_PATA_IORDY__UART1_RTS,
  69         MX53_PAD_PATA_RESET_B__UART1_CTS,
  70 #endif
  71 #if CONFIG_MXC_UART_BASE == UART2_BASE
  72         MX53_PAD_PATA_BUFFER_EN__UART2_RXD_MUX,
  73         MX53_PAD_PATA_DMARQ__UART2_TXD_MUX,
  74         MX53_PAD_PATA_DIOR__UART2_RTS,
  75         MX53_PAD_PATA_INTRQ__UART2_CTS,
  76 #endif
  77 #if CONFIG_MXC_UART_BASE == UART3_BASE
  78         MX53_PAD_PATA_CS_0__UART3_TXD_MUX,
  79         MX53_PAD_PATA_CS_1__UART3_RXD_MUX,
  80         MX53_PAD_PATA_DA_2__UART3_RTS,
  81         MX53_PAD_PATA_DA_1__UART3_CTS,
  82 #endif
  83         /* internal I2C */
  84         MX53_PAD_EIM_D28__I2C1_SDA | MX53_GPIO_PAD_CTRL,
  85         MX53_PAD_EIM_D21__I2C1_SCL | MX53_GPIO_PAD_CTRL,
  86
  87         /* FEC PHY GPIO functions */
  88         MX53_PAD_EIM_D20__GPIO3_20, /* PHY POWER */
  89         MX53_PAD_PATA_DA_0__GPIO7_6, /* PHY RESET */
  90         MX53_PAD_PATA_DATA4__GPIO2_4, /* PHY INT */
  91
  92         /* FEC functions */
  93         MX53_PAD_FEC_MDC__FEC_MDC,
  94         MX53_PAD_FEC_MDIO__FEC_MDIO,
  95         MX53_PAD_FEC_REF_CLK__FEC_TX_CLK,
  96         MX53_PAD_FEC_RX_ER__FEC_RX_ER,
  97         MX53_PAD_FEC_CRS_DV__FEC_RX_DV,
  98         MX53_PAD_FEC_RXD1__FEC_RDATA_1,
  99         MX53_PAD_FEC_RXD0__FEC_RDATA_0,
 100         MX53_PAD_FEC_TX_EN__FEC_TX_EN,
 101         MX53_PAD_FEC_TXD1__FEC_TDATA_1,
 102         MX53_PAD_FEC_TXD0__FEC_TDATA_0,
 103 };
 104
 105 static const struct gpio tx53_gpios[] = {
 106         { TX53_RESET_OUT_GPIO, GPIOF_OUTPUT_INIT_HIGH, "#RESET_OUT", },
 107         { TX53_FEC_PWR_GPIO, GPIOF_OUTPUT_INIT_HIGH, "FEC PHY PWR", },
 108         { TX53_FEC_RST_GPIO, GPIOF_OUTPUT_INIT_LOW, "FEC PHY RESET", },
 109         { TX53_FEC_INT_GPIO, GPIOF_INPUT, "FEC PHY INT", },
 110 };
 111
 112 /*
 113  * Functions
 114  */
 115 /* placed in section '.data' to prevent overwriting relocation info
 116  * overlayed with bss
 117  */
 118 static u32 wrsr __attribute__((section(".data")));
 119
 120 #define WRSR_POR        (1 << 4)
 121 #define WRSR_TOUT       (1 << 1)
 122 #define WRSR_SFTW       (1 << 0)
 123
 124 static void print_reset_cause(void)
 125 {
 126         struct src *src_regs = (struct src *)SRC_BASE_ADDR;
 127         void __iomem *wdt_base = (void __iomem *)WDOG1_BASE_ADDR;
 128         u32 srsr;
 129         char *dlm = "";
 130
 131         printf("Reset cause: ");
 132
 133         srsr = readl(&src_regs->srsr);
 134         wrsr = readw(wdt_base + 4);
 135
 136         if (wrsr & WRSR_POR) {
 137                 printf("%sPOR", dlm);
 138                 dlm = " | ";
 139         }
 140         if (srsr & 0x00004) {
 141                 printf("%sCSU", dlm);
 142                 dlm = " | ";
 143         }
 144         if (srsr & 0x00008) {
 145                 printf("%sIPP USER", dlm);
 146                 dlm = " | ";
 147         }
 148         if (srsr & 0x00010) {
 149                 if (wrsr & WRSR_SFTW) {
 150                         printf("%sSOFT", dlm);
 151                         dlm = " | ";
 152                 }
 153                 if (wrsr & WRSR_TOUT) {
 154                         printf("%sWDOG", dlm);
 155                         dlm = " | ";
 156                 }
 157         }
 158         if (srsr & 0x00020) {
 159                 printf("%sJTAG HIGH-Z", dlm);
 160                 dlm = " | ";
 161         }
 162         if (srsr & 0x00040) {
 163                 printf("%sJTAG SW", dlm);
 164                 dlm = " | ";
 165         }
 166         if (srsr & 0x10000) {
 167                 printf("%sWARM BOOT", dlm);
 168                 dlm = " | ";
 169         }
 170         if (dlm[0] == '\0')
 171                 printf("unknown");
 172
 173         printf("\n");
 174 }
 175
 176 static void tx53_print_cpuinfo(void)
 177 {
 178         u32 cpurev;
 179
 180         cpurev = get_cpu_rev();
 181
 182         printf("CPU:   Freescale i.MX53 rev%d.%d at %d MHz\n",
 183                 (cpurev & 0x000F0) >> 4,
 184                 (cpurev & 0x0000F) >> 0,
 185                 mxc_get_clock(MXC_ARM_CLK) / 1000000);
 186
 187         print_reset_cause();
 188 }
 189
 190 enum LTC3589_REGS {
 191         LTC3589_SCR1 = 0x07,
 192         LTC3589_CLIRQ = 0x21,
 193         LTC3589_B1DTV1 = 0x23,
 194         LTC3589_B1DTV2 = 0x24,
 195         LTC3589_VRRCR = 0x25,
 196         LTC3589_B2DTV1 = 0x26,
 197         LTC3589_B2DTV2 = 0x27,
 198         LTC3589_B3DTV1 = 0x29,
 199         LTC3589_B3DTV2 = 0x2a,
 200         LTC3589_L2DTV1 = 0x32,
 201         LTC3589_L2DTV2 = 0x33,
 202 };
 203
 204 #define LTC3589_PGOOD_MASK      (1 << 5)
 205
 206 #define LTC3589_CLK_RATE_LOW    (1 << 5)
 207
 208 #define VDD_LDO2_VAL            mV_to_regval(vout_to_vref(1325 * 10, 2))
 209 #define VDD_CORE_VAL            mV_to_regval(vout_to_vref(1240 * 10, 3))
 210 #define VDD_SOC_VAL             mV_to_regval(vout_to_vref(1325 * 10, 4))
 211 #define VDD_BUCK3_VAL           mV_to_regval(vout_to_vref(2500 * 10, 5))
 212
 213 #ifndef CONFIG_SYS_TX53_HWREV_2
 214 /* LDO2 vref divider */
 215 #define R1_2    180
 216 #define R2_2    191
 217 /* BUCK1 vref divider */
 218 #define R1_3    150
 219 #define R2_3    180
 220 /* BUCK2 vref divider */
 221 #define R1_4    180
 222 #define R2_4    191
 223 /* BUCK3 vref divider */
 224 #define R1_5    270
 225 #define R2_5    100
 226 #else
 227 /* no dividers on vref */
 228 #define R1_2    0
 229 #define R2_2    1
 230 #define R1_3    0
 231 #define R2_3    1
 232 #define R1_4    0
 233 #define R2_4    1
 234 #define R1_5    0
 235 #define R2_5    1
 236 #endif
 237
 238 /* calculate voltages in 10mV */
 239 #define R1(idx)                 R1_##idx
 240 #define R2(idx)                 R2_##idx
 241
 242 #define vout_to_vref(vout, idx) ((vout) * R2(idx) / (R1(idx) + R2(idx)))
 243 #define vref_to_vout(vref, idx) DIV_ROUND_UP((vref) * (R1(idx) + R2(idx)), R2(idx))
 244
 245 #define mV_to_regval(mV)        DIV_ROUND(((((mV) < 3625) ? 3625 : (mV)) - 3625), 125)
 246 #define regval_to_mV(v)         (((v) * 125 + 3625))
 247
 248 static struct pmic_regs {
 249         enum LTC3589_REGS addr;
 250         u8 val;
 251 } ltc3589_regs[] = {
 252         { LTC3589_SCR1, 0x15, }, /* burst mode for all regulators except buck boost */
 253
 254         { LTC3589_L2DTV1, VDD_LDO2_VAL | LTC3589_PGOOD_MASK, },
 255         { LTC3589_L2DTV2, VDD_LDO2_VAL | LTC3589_CLK_RATE_LOW, },
 256
 257         { LTC3589_B1DTV1, VDD_CORE_VAL | LTC3589_PGOOD_MASK, },
 258         { LTC3589_B1DTV2, VDD_CORE_VAL, },
 259
 260         { LTC3589_B2DTV1, VDD_SOC_VAL | LTC3589_PGOOD_MASK, },
 261         { LTC3589_B2DTV2, VDD_SOC_VAL, },
 262
 263         { LTC3589_B3DTV1, VDD_BUCK3_VAL | LTC3589_PGOOD_MASK, },
 264         { LTC3589_B3DTV2, VDD_BUCK3_VAL, },
 265
 266         { LTC3589_CLIRQ, 0, }, /* clear all interrupt flags */
 267 };
 268
 269 static int setup_pmic_voltages(void)
 270 {
 271         int ret;
 272         unsigned char value;
 273         int i;
 274
 275         ret = i2c_probe(CONFIG_SYS_I2C_SLAVE);
 276         if (ret != 0) {
 277                 printf("Failed to initialize I2C\n");
 278                 return ret;
 279         }
 280
 281         ret = i2c_read(CONFIG_SYS_I2C_SLAVE, 0x11, 1, &value, 1);
 282         if (ret) {
 283                 printf("%s: i2c_read error: %d\n", __func__, ret);
 284                 return ret;
 285         }
 286
 287         for (i = 0; i < ARRAY_SIZE(ltc3589_regs); i++) {
 288                 ret = i2c_read(CONFIG_SYS_I2C_SLAVE, ltc3589_regs[i].addr, 1,
 289                                 &value, 1);
 290                 debug("Writing %02x to reg %02x (%02x)\n",
 291                         ltc3589_regs[i].val, ltc3589_regs[i].addr, value);
 292                 ret = i2c_write(CONFIG_SYS_I2C_SLAVE, ltc3589_regs[i].addr, 1,
 293                                 &ltc3589_regs[i].val, 1);
 294                 if (ret) {
 295                         printf("%s: failed to write PMIC register %02x: %d\n",
 296                                 __func__, ltc3589_regs[i].addr, ret);
 297                         return ret;
 298                 }
 299         }
 300         printf("VDDCORE set to %umV\n",
 301                 DIV_ROUND(vref_to_vout(regval_to_mV(VDD_CORE_VAL), 3), 10));
 302
 303         printf("VDDSOC  set to %umV\n",
 304                 DIV_ROUND(vref_to_vout(regval_to_mV(VDD_SOC_VAL), 4), 10));
 305         return 0;
 306 }
 307
 308 int board_early_init_f(void)
 309 {
 310         struct mxc_ccm_reg *ccm_regs = (void *)CCM_BASE_ADDR;
 311
 312         gpio_request_array(tx53_gpios, ARRAY_SIZE(tx53_gpios));
 313         imx_iomux_v3_setup_multiple_pads(tx53_pads, ARRAY_SIZE(tx53_pads));
 314
 315         writel(0x77777777, AIPS1_BASE_ADDR + 0x00);
 316         writel(0x77777777, AIPS1_BASE_ADDR + 0x04);
 317
 318         writel(0x00000000, AIPS1_BASE_ADDR + 0x40);
 319         writel(0x00000000, AIPS1_BASE_ADDR + 0x44);
 320         writel(0x00000000, AIPS1_BASE_ADDR + 0x48);
 321         writel(0x00000000, AIPS1_BASE_ADDR + 0x4c);
 322         writel(0x00000000, AIPS1_BASE_ADDR + 0x50);
 323
 324         writel(0x77777777, AIPS2_BASE_ADDR + 0x00);
 325         writel(0x77777777, AIPS2_BASE_ADDR + 0x04);
 326
 327         writel(0x00000000, AIPS2_BASE_ADDR + 0x40);
 328         writel(0x00000000, AIPS2_BASE_ADDR + 0x44);
 329         writel(0x00000000, AIPS2_BASE_ADDR + 0x48);
 330         writel(0x00000000, AIPS2_BASE_ADDR + 0x4c);
 331         writel(0x00000000, AIPS2_BASE_ADDR + 0x50);
 332
 333         writel(0xffcf0fff, &ccm_regs->CCGR0);
 334         writel(0x000fffc3, &ccm_regs->CCGR1);
 335         writel(0x033c0000, &ccm_regs->CCGR2);
 336         writel(0x000000ff, &ccm_regs->CCGR3);
 337         writel(0x00000000, &ccm_regs->CCGR4);
 338         writel(0x00fff033, &ccm_regs->CCGR5);
 339         writel(0x0f00030f, &ccm_regs->CCGR6);
 340         writel(0xfff00000, &ccm_regs->CCGR7);
 341         writel(0x00000000, &ccm_regs->cmeor);
 342
 343         return 0;
 344 }
 345
 346 int board_init(void)
 347 {
 348         int ret;
 349
 350         /* Address of boot parameters */
 351         gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x1000;
 352
 353         if (ctrlc() || (wrsr & WRSR_TOUT)) {
 354                 printf("CTRL-C detected; Skipping PMIC setup\n");
 355                 return 1;
 356         }
 357
 358         ret = setup_pmic_voltages();
 359         if (ret) {
 360                 printf("Failed to setup PMIC voltages\n");
 361                 hang();
 362         }
 363         return 0;
 364 }
 365
 366 int dram_init(void)
 367 {
 368         int ret;
 369
 370         /* dram_init must store complete ramsize in gd->ram_size */
 371         gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
 372                                 PHYS_SDRAM_1_SIZE);
 373
 374         ret = mxc_set_clock(CONFIG_SYS_MX5_HCLK,
 375                 CONFIG_SYS_SDRAM_CLK, MXC_DDR_CLK);
 376         if (ret)
 377                 printf("%s: Failed to set DDR clock to %u MHz: %d\n", __func__,
 378                         CONFIG_SYS_SDRAM_CLK, ret);
 379         else
 380                 debug("%s: DDR clock set to %u.%03u MHz (desig.: %u.000 MHz)\n",
 381                         __func__, mxc_get_clock(MXC_DDR_CLK) / 1000000,
 382                         mxc_get_clock(MXC_DDR_CLK) / 1000 % 1000,
 383                         CONFIG_SYS_SDRAM_CLK);
 384         return ret;
 385 }
 386
 387 void dram_init_banksize(void)
 388 {
 389         gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
 390         gd->bd->bi_dram[0].size = get_ram_size((void *)PHYS_SDRAM_1,
 391                         PHYS_SDRAM_1_SIZE);
 392 #if CONFIG_NR_DRAM_BANKS > 1
 393         gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
 394         gd->bd->bi_dram[1].size = get_ram_size((void *)PHYS_SDRAM_2,
 395                         PHYS_SDRAM_2_SIZE);
 396 #endif
 397 }
 398
 399 #ifdef  CONFIG_CMD_MMC
 400 static const iomux_v3_cfg_t mmc0_pads[] = {
 401         MX53_PAD_SD1_CMD__ESDHC1_CMD | TX53_SDHC_PAD_CTRL,
 402         MX53_PAD_SD1_CLK__ESDHC1_CLK | TX53_SDHC_PAD_CTRL,
 403         MX53_PAD_SD1_DATA0__ESDHC1_DAT0 | TX53_SDHC_PAD_CTRL,
 404         MX53_PAD_SD1_DATA1__ESDHC1_DAT1 | TX53_SDHC_PAD_CTRL,
 405         MX53_PAD_SD1_DATA2__ESDHC1_DAT2 | TX53_SDHC_PAD_CTRL,
 406         MX53_PAD_SD1_DATA3__ESDHC1_DAT3 | TX53_SDHC_PAD_CTRL,
 407         /* SD1 CD */
 408         MX53_PAD_EIM_D24__GPIO3_24 | MX53_GPIO_PAD_CTRL,
 409 };
 410
 411 static const iomux_v3_cfg_t mmc1_pads[] = {
 412         MX53_PAD_SD2_CMD__ESDHC2_CMD | TX53_SDHC_PAD_CTRL,
 413         MX53_PAD_SD2_CLK__ESDHC2_CLK | TX53_SDHC_PAD_CTRL,
 414         MX53_PAD_SD2_DATA0__ESDHC2_DAT0 | TX53_SDHC_PAD_CTRL,
 415         MX53_PAD_SD2_DATA1__ESDHC2_DAT1 | TX53_SDHC_PAD_CTRL,
 416         MX53_PAD_SD2_DATA2__ESDHC2_DAT2 | TX53_SDHC_PAD_CTRL,
 417         MX53_PAD_SD2_DATA3__ESDHC2_DAT3 | TX53_SDHC_PAD_CTRL,
 418         /* SD2 CD */
 419         MX53_PAD_EIM_D25__GPIO3_25 | MX53_GPIO_PAD_CTRL,
 420 };
 421
 422 static struct tx53_esdhc_cfg {
 423         const iomux_v3_cfg_t *pads;
 424         int num_pads;
 425         struct fsl_esdhc_cfg cfg;
 426         int cd_gpio;
 427 } tx53_esdhc_cfg[] = {
 428         {
 429                 .pads = mmc0_pads,
 430                 .num_pads = ARRAY_SIZE(mmc0_pads),
 431                 .cfg = {
 432                         .esdhc_base = (void __iomem *)MMC_SDHC1_BASE_ADDR,
 433                         .max_bus_width = 4,
 434                 },
 435                 .cd_gpio = IMX_GPIO_NR(3, 24),
 436         },
 437         {
 438                 .pads = mmc1_pads,
 439                 .num_pads = ARRAY_SIZE(mmc1_pads),
 440                 .cfg = {
 441                         .esdhc_base = (void __iomem *)MMC_SDHC2_BASE_ADDR,
 442                         .max_bus_width = 4,
 443                 },
 444                 .cd_gpio = IMX_GPIO_NR(3, 25),
 445         },
 446 };
 447
 448 static inline struct tx53_esdhc_cfg *to_tx53_esdhc_cfg(struct fsl_esdhc_cfg *cfg)
 449 {
 450         return container_of(cfg, struct tx53_esdhc_cfg, cfg);
 451 }
 452
 453 int board_mmc_getcd(struct mmc *mmc)
 454 {
 455         struct tx53_esdhc_cfg *cfg = to_tx53_esdhc_cfg(mmc->priv);
 456
 457         if (cfg->cd_gpio < 0)
 458                 return cfg->cd_gpio;
 459
 460         debug("SD card %d is %spresent\n",
 461                 cfg - tx53_esdhc_cfg,
 462                 gpio_get_value(cfg->cd_gpio) ? "NOT " : "");
 463         return !gpio_get_value(cfg->cd_gpio);
 464 }
 465
 466 int board_mmc_init(bd_t *bis)
 467 {
 468         int i;
 469
 470         for (i = 0; i < ARRAY_SIZE(tx53_esdhc_cfg); i++) {
 471                 struct mmc *mmc;
 472                 struct tx53_esdhc_cfg *cfg = &tx53_esdhc_cfg[i];
 473                 int ret;
 474
 475                 imx_iomux_v3_setup_multiple_pads(cfg->pads, cfg->num_pads);
 476                 cfg->cfg.sdhc_clk = mxc_get_clock(MXC_ESDHC_CLK);
 477
 478                 ret = gpio_request_one(cfg->cd_gpio,
 479                                 GPIOF_INPUT, "MMC CD");
 480                 if (ret) {
 481                         printf("Error %d requesting GPIO%d_%d\n",
 482                                 ret, cfg->cd_gpio / 32, cfg->cd_gpio % 32);
 483                         continue;
 484                 }
 485
 486                 debug("%s: Initializing MMC slot %d\n", __func__, i);
 487                 fsl_esdhc_initialize(bis, &cfg->cfg);
 488
 489                 mmc = find_mmc_device(i);
 490                 if (mmc == NULL)
 491                         continue;
 492                 if (board_mmc_getcd(mmc) > 0)
 493                         mmc_init(mmc);
 494         }
 495         return 0;
 496 }
 497 #endif /* CONFIG_CMD_MMC */
 498
 499 #ifdef CONFIG_FEC_MXC
 500
 501 #ifndef ETH_ALEN
 502 #define ETH_ALEN 6
 503 #endif
 504
 505 void imx_get_mac_from_fuse(int dev_id, unsigned char *mac)
 506 {
 507         int i;
 508         struct iim_regs *iim = (struct iim_regs *)IMX_IIM_BASE;
 509         struct fuse_bank *bank = &iim->bank[1];
 510         struct fuse_bank1_regs *fuse = (struct fuse_bank1_regs *)bank->fuse_regs;
 511
 512         if (dev_id > 0)
 513                 return;
 514
 515         for (i = 0; i < ETH_ALEN; i++)
 516                 mac[i] = readl(&fuse->mac_addr[i]);
 517 }
 518
 519 #define FEC_PAD_CTL     (PAD_CTL_DVS | PAD_CTL_DSE_HIGH | \
 520                         PAD_CTL_SRE_FAST)
 521 #define FEC_PAD_CTL2    (PAD_CTL_DVS | PAD_CTL_SRE_FAST)
 522 #define GPIO_PAD_CTL    (PAD_CTL_DVS | PAD_CTL_DSE_HIGH)
 523
 524 int board_eth_init(bd_t *bis)
 525 {
 526         int ret;
 527
 528         /* delay at least 21ms for the PHY internal POR signal to deassert */
 529         udelay(22000);
 530
 531         /* Deassert RESET to the external phy */
 532         gpio_set_value(TX53_FEC_RST_GPIO, 1);
 533
 534         ret = cpu_eth_init(bis);
 535         if (ret)
 536                 printf("cpu_eth_init() failed: %d\n", ret);
 537
 538         return ret;
 539 }
 540 #endif /* CONFIG_FEC_MXC */
 541
 542 enum {
 543         LED_STATE_INIT = -1,
 544         LED_STATE_OFF,
 545         LED_STATE_ON,
 546 };
 547
 548 void show_activity(int arg)
 549 {
 550         static int led_state = LED_STATE_INIT;
 551         static ulong last;
 552
 553         if (led_state == LED_STATE_INIT) {
 554                 last = get_timer(0);
 555                 gpio_set_value(TX53_LED_GPIO, 1);
 556                 led_state = LED_STATE_ON;
 557         } else {
 558                 if (get_timer(last) > CONFIG_SYS_HZ) {
 559                         last = get_timer(0);
 560                         if (led_state == LED_STATE_ON) {
 561                                 gpio_set_value(TX53_LED_GPIO, 0);
 562                         } else {
 563                                 gpio_set_value(TX53_LED_GPIO, 1);
 564                         }
 565                         led_state = 1 - led_state;
 566                 }
 567         }
 568 }
 569
 570 static const iomux_v3_cfg_t stk5_pads[] = {
 571         /* SW controlled LED on STK5 baseboard */
 572         MX53_PAD_EIM_A18__GPIO2_20,
 573
 574         /* I2C bus on DIMM pins 40/41 */
 575         MX53_PAD_GPIO_6__I2C3_SDA | MX53_GPIO_PAD_CTRL,
 576         MX53_PAD_GPIO_3__I2C3_SCL | MX53_GPIO_PAD_CTRL,
 577
 578         /* TSC200x PEN IRQ */
 579         MX53_PAD_EIM_D26__GPIO3_26 | MX53_GPIO_PAD_CTRL,
 580
 581         /* EDT-FT5x06 Polytouch panel */
 582         MX53_PAD_NANDF_CS2__GPIO6_15 | MX53_GPIO_PAD_CTRL, /* IRQ */
 583         MX53_PAD_EIM_A16__GPIO2_22 | MX53_GPIO_PAD_CTRL, /* RESET */
 584         MX53_PAD_EIM_A17__GPIO2_21 | MX53_GPIO_PAD_CTRL, /* WAKE */
 585
 586         /* USBH1 */
 587         MX53_PAD_EIM_D31__GPIO3_31 | MX53_GPIO_PAD_CTRL, /* VBUSEN */
 588         MX53_PAD_EIM_D30__GPIO3_30 | MX53_GPIO_PAD_CTRL, /* OC */
 589         /* USBOTG */
 590         MX53_PAD_GPIO_7__GPIO1_7, /* VBUSEN */
 591         MX53_PAD_GPIO_8__GPIO1_8, /* OC */
 592
 593         /* DS1339 Interrupt */
 594         MX53_PAD_DI0_PIN4__GPIO4_20 | MX53_GPIO_PAD_CTRL,
 595 };
 596
 597 static const struct gpio stk5_gpios[] = {
 598         { TX53_LED_GPIO, GPIOF_OUTPUT_INIT_LOW, "HEARTBEAT LED", },
 599
 600         { IMX_GPIO_NR(1, 8), GPIOF_INPUT, "USBOTG OC", },
 601         { IMX_GPIO_NR(1, 7), GPIOF_OUTPUT_INIT_LOW, "USBOTG VBUS enable", },
 602         { IMX_GPIO_NR(3, 30), GPIOF_INPUT, "USBH1 OC", },
 603         { IMX_GPIO_NR(3, 31), GPIOF_OUTPUT_INIT_LOW, "USBH1 VBUS enable", },
 604 };
 605
 606 #ifdef CONFIG_LCD
 607 static u16 tx53_cmap[256];
 608 vidinfo_t panel_info = {
 609         /* set to max. size supported by SoC */
 610         .vl_col = 1600,
 611         .vl_row = 1200,
 612
 613         .vl_bpix = LCD_COLOR24,    /* Bits per pixel, 0: 1bpp, 1: 2bpp, 2: 4bpp, 3: 8bpp ... */
 614         .cmap = tx53_cmap,
 615 };
 616
 617 static struct fb_videomode tx53_fb_modes[] = {
 618 #ifndef CONFIG_SYS_LVDS_IF
 619         {
 620                 /* Standard VGA timing */
 621                 .name           = "VGA",
 622                 .refresh        = 60,
 623                 .xres           = 640,
 624                 .yres           = 480,
 625                 .pixclock       = KHZ2PICOS(25175),
 626                 .left_margin    = 48,
 627                 .hsync_len      = 96,
 628                 .right_margin   = 16,
 629                 .upper_margin   = 31,
 630                 .vsync_len      = 2,
 631                 .lower_margin   = 12,
 632                 .sync           = FB_SYNC_CLK_LAT_FALL,
 633         },
 634         {
 635                 /* Emerging ETV570 640 x 480 display. Syncs low active,
 636                  * DE high active, 115.2 mm x 86.4 mm display area
 637                  * VGA compatible timing
 638                  */
 639                 .name           = "ETV570",
 640                 .refresh        = 60,
 641                 .xres           = 640,
 642                 .yres           = 480,
 643                 .pixclock       = KHZ2PICOS(25175),
 644                 .left_margin    = 114,
 645                 .hsync_len      = 30,
 646                 .right_margin   = 16,
 647                 .upper_margin   = 32,
 648                 .vsync_len      = 3,
 649                 .lower_margin   = 10,
 650                 .sync           = FB_SYNC_CLK_LAT_FALL,
 651         },
 652         {
 653                 /* Emerging ET0350G0DH6 320 x 240 display.
 654                  * 70.08 mm x 52.56 mm display area.
 655                  */
 656                 .name           = "ET0350",
 657                 .refresh        = 60,
 658                 .xres           = 320,
 659                 .yres           = 240,
 660                 .pixclock       = KHZ2PICOS(6500),
 661                 .left_margin    = 68 - 34,
 662                 .hsync_len      = 34,
 663                 .right_margin   = 20,
 664                 .upper_margin   = 18 - 3,
 665                 .vsync_len      = 3,
 666                 .lower_margin   = 4,
 667                 .sync           = FB_SYNC_CLK_LAT_FALL,
 668         },
 669         {
 670                 /* Emerging ET0430G0DH6 480 x 272 display.
 671                  * 95.04 mm x 53.856 mm display area.
 672                  */
 673                 .name           = "ET0430",
 674                 .refresh        = 60,
 675                 .xres           = 480,
 676                 .yres           = 272,
 677                 .pixclock       = KHZ2PICOS(9000),
 678                 .left_margin    = 2,
 679                 .hsync_len      = 41,
 680                 .right_margin   = 2,
 681                 .upper_margin   = 2,
 682                 .vsync_len      = 10,
 683                 .lower_margin   = 2,
 684                 .sync           = FB_SYNC_CLK_LAT_FALL,
 685         },
 686         {
 687                 /* Emerging ET0500G0DH6 800 x 480 display.
 688                  * 109.6 mm x 66.4 mm display area.
 689                  */
 690                 .name           = "ET0500",
 691                 .refresh        = 60,
 692                 .xres           = 800,
 693                 .yres           = 480,
 694                 .pixclock       = KHZ2PICOS(33260),
 695                 .left_margin    = 216 - 128,
 696                 .hsync_len      = 128,
 697                 .right_margin   = 1056 - 800 - 216,
 698                 .upper_margin   = 35 - 2,
 699                 .vsync_len      = 2,
 700                 .lower_margin   = 525 - 480 - 35,
 701                 .sync           = FB_SYNC_CLK_LAT_FALL,
 702         },
 703         {
 704                 /* Emerging ETQ570G0DH6 320 x 240 display.
 705                  * 115.2 mm x 86.4 mm display area.
 706                  */
 707                 .name           = "ETQ570",
 708                 .refresh        = 60,
 709                 .xres           = 320,
 710                 .yres           = 240,
 711                 .pixclock       = KHZ2PICOS(6400),
 712                 .left_margin    = 38,
 713                 .hsync_len      = 30,
 714                 .right_margin   = 30,
 715                 .upper_margin   = 16, /* 15 according to datasheet */
 716                 .vsync_len      = 3, /* TVP -> 1>x>5 */
 717                 .lower_margin   = 4, /* 4.5 according to datasheet */
 718                 .sync           = FB_SYNC_CLK_LAT_FALL,
 719         },
 720         {
 721                 /* Emerging ET0700G0DH6 800 x 480 display.
 722                  * 152.4 mm x 91.44 mm display area.
 723                  */
 724                 .name           = "ET0700",
 725                 .refresh        = 60,
 726                 .xres           = 800,
 727                 .yres           = 480,
 728                 .pixclock       = KHZ2PICOS(33260),
 729                 .left_margin    = 216 - 128,
 730                 .hsync_len      = 128,
 731                 .right_margin   = 1056 - 800 - 216,
 732                 .upper_margin   = 35 - 2,
 733                 .vsync_len      = 2,
 734                 .lower_margin   = 525 - 480 - 35,
 735                 .sync           = FB_SYNC_CLK_LAT_FALL,
 736         },
 737 #else
 738         {
 739                 /* HannStar HSD100PXN1
 740                  * 202.7m mm x 152.06 mm display area.
 741                  */
 742                 .name           = "HSD100PXN1",
 743                 .refresh        = 60,
 744                 .xres           = 1024,
 745                 .yres           = 768,
 746                 .pixclock       = KHZ2PICOS(65000),
 747                 .left_margin    = 0,
 748                 .hsync_len      = 0,
 749                 .right_margin   = 320,
 750                 .upper_margin   = 0,
 751                 .vsync_len      = 0,
 752                 .lower_margin   = 38,
 753                 .sync           = FB_SYNC_CLK_LAT_FALL,
 754         },
 755 #endif
 756         {
 757                 /* unnamed entry for assigning parameters parsed from 'video_mode' string */
 758                 .refresh        = 60,
 759                 .left_margin    = 48,
 760                 .hsync_len      = 96,
 761                 .right_margin   = 16,
 762                 .upper_margin   = 31,
 763                 .vsync_len      = 2,
 764                 .lower_margin   = 12,
 765                 .sync           = FB_SYNC_CLK_LAT_FALL,
 766         },
 767 };
 768
 769 static int lcd_enabled = 1;
 770 static int lcd_bl_polarity;
 771
 772 static int lcd_backlight_polarity(void)
 773 {
 774         return lcd_bl_polarity;
 775 }
 776
 777 void lcd_enable(void)
 778 {
 779         /* HACK ALERT:
 780          * global variable from common/lcd.c
 781          * Set to 0 here to prevent messages from going to LCD
 782          * rather than serial console
 783          */
 784         lcd_is_enabled = 0;
 785
 786         if (lcd_enabled) {
 787                 karo_load_splashimage(1);
 788
 789                 debug("Switching LCD on\n");
 790                 gpio_set_value(TX53_LCD_PWR_GPIO, 1);
 791                 udelay(100);
 792                 gpio_set_value(TX53_LCD_RST_GPIO, 1);
 793                 udelay(300000);
 794                 gpio_set_value(TX53_LCD_BACKLIGHT_GPIO,
 795                         lcd_backlight_polarity());
 796         }
 797 }
 798
 799 void lcd_disable(void)
 800 {
 801         if (lcd_enabled) {
 802                 printf("Disabling LCD\n");
 803                 ipuv3_fb_shutdown();
 804         }
 805 }
 806
 807 void lcd_panel_disable(void)
 808 {
 809         if (lcd_enabled) {
 810                 debug("Switching LCD off\n");
 811                 gpio_set_value(TX53_LCD_BACKLIGHT_GPIO,
 812                         !lcd_backlight_polarity());
 813                 gpio_set_value(TX53_LCD_RST_GPIO, 0);
 814                 gpio_set_value(TX53_LCD_PWR_GPIO, 0);
 815         }
 816 }
 817
 818 static const iomux_v3_cfg_t stk5_lcd_pads[] = {
 819         /* LCD RESET */
 820         MX53_PAD_EIM_D29__GPIO3_29 | MX53_GPIO_PAD_CTRL,
 821         /* LCD POWER_ENABLE */
 822         MX53_PAD_EIM_EB3__GPIO2_31 | MX53_GPIO_PAD_CTRL,
 823         /* LCD Backlight (PWM) */
 824         MX53_PAD_GPIO_1__GPIO1_1 | MX53_GPIO_PAD_CTRL,
 825
 826         /* Display */
 827 #ifndef CONFIG_SYS_LVDS_IF
 828         /* LCD option */
 829         MX53_PAD_DI0_DISP_CLK__IPU_DI0_DISP_CLK,
 830         MX53_PAD_DI0_PIN15__IPU_DI0_PIN15,
 831         MX53_PAD_DI0_PIN2__IPU_DI0_PIN2,
 832         MX53_PAD_DI0_PIN3__IPU_DI0_PIN3,
 833         MX53_PAD_DISP0_DAT0__IPU_DISP0_DAT_0,
 834         MX53_PAD_DISP0_DAT1__IPU_DISP0_DAT_1,
 835         MX53_PAD_DISP0_DAT2__IPU_DISP0_DAT_2,
 836         MX53_PAD_DISP0_DAT3__IPU_DISP0_DAT_3,
 837         MX53_PAD_DISP0_DAT4__IPU_DISP0_DAT_4,
 838         MX53_PAD_DISP0_DAT5__IPU_DISP0_DAT_5,
 839         MX53_PAD_DISP0_DAT6__IPU_DISP0_DAT_6,
 840         MX53_PAD_DISP0_DAT7__IPU_DISP0_DAT_7,
 841         MX53_PAD_DISP0_DAT8__IPU_DISP0_DAT_8,
 842         MX53_PAD_DISP0_DAT9__IPU_DISP0_DAT_9,
 843         MX53_PAD_DISP0_DAT10__IPU_DISP0_DAT_10,
 844         MX53_PAD_DISP0_DAT11__IPU_DISP0_DAT_11,
 845         MX53_PAD_DISP0_DAT12__IPU_DISP0_DAT_12,
 846         MX53_PAD_DISP0_DAT13__IPU_DISP0_DAT_13,
 847         MX53_PAD_DISP0_DAT14__IPU_DISP0_DAT_14,
 848         MX53_PAD_DISP0_DAT15__IPU_DISP0_DAT_15,
 849         MX53_PAD_DISP0_DAT16__IPU_DISP0_DAT_16,
 850         MX53_PAD_DISP0_DAT17__IPU_DISP0_DAT_17,
 851         MX53_PAD_DISP0_DAT18__IPU_DISP0_DAT_18,
 852         MX53_PAD_DISP0_DAT19__IPU_DISP0_DAT_19,
 853         MX53_PAD_DISP0_DAT20__IPU_DISP0_DAT_20,
 854         MX53_PAD_DISP0_DAT21__IPU_DISP0_DAT_21,
 855         MX53_PAD_DISP0_DAT22__IPU_DISP0_DAT_22,
 856         MX53_PAD_DISP0_DAT23__IPU_DISP0_DAT_23,
 857 #else
 858         /* LVDS option */
 859         MX53_PAD_LVDS1_TX3_P__LDB_LVDS1_TX3,
 860         MX53_PAD_LVDS1_TX2_P__LDB_LVDS1_TX2,
 861         MX53_PAD_LVDS1_CLK_P__LDB_LVDS1_CLK,
 862         MX53_PAD_LVDS1_TX1_P__LDB_LVDS1_TX1,
 863         MX53_PAD_LVDS1_TX0_P__LDB_LVDS1_TX0,
 864         MX53_PAD_LVDS0_TX3_P__LDB_LVDS0_TX3,
 865         MX53_PAD_LVDS0_CLK_P__LDB_LVDS0_CLK,
 866         MX53_PAD_LVDS0_TX2_P__LDB_LVDS0_TX2,
 867         MX53_PAD_LVDS0_TX1_P__LDB_LVDS0_TX1,
 868         MX53_PAD_LVDS0_TX0_P__LDB_LVDS0_TX0,
 869 #endif
 870 };
 871
 872 static const struct gpio stk5_lcd_gpios[] = {
 873         { TX53_LCD_RST_GPIO, GPIOF_OUTPUT_INIT_LOW, "LCD RESET", },
 874         { TX53_LCD_PWR_GPIO, GPIOF_OUTPUT_INIT_LOW, "LCD POWER", },
 875         { TX53_LCD_BACKLIGHT_GPIO, GPIOF_OUTPUT_INIT_HIGH, "LCD BACKLIGHT", },
 876 };
 877
 878 void lcd_ctrl_init(void *lcdbase)
 879 {
 880         int color_depth = 24;
 881         const char *video_mode = karo_get_vmode(getenv("video_mode"));
 882         const char *vm;
 883         unsigned long val;
 884         int refresh = 60;
 885         struct fb_videomode *p = &tx53_fb_modes[0];
 886         struct fb_videomode fb_mode;
 887         int xres_set = 0, yres_set = 0, bpp_set = 0, refresh_set = 0;
 888         int pix_fmt;
 889         int lcd_bus_width;
 890         ipu_di_clk_parent_t di_clk_parent = is_lvds() ? DI_PCLK_LDB : DI_PCLK_PLL3;
 891         unsigned long di_clk_rate = 65000000;
 892
 893         if (!lcd_enabled) {
 894                 debug("LCD disabled\n");
 895                 return;
 896         }
 897
 898         if (had_ctrlc() || (wrsr & WRSR_TOUT)) {
 899                 debug("Disabling LCD\n");
 900                 lcd_enabled = 0;
 901                 setenv("splashimage", NULL);
 902                 return;
 903         }
 904
 905         karo_fdt_move_fdt();
 906         lcd_bl_polarity = karo_fdt_get_backlight_polarity(working_fdt);
 907
 908         if (video_mode == NULL) {
 909                 debug("Disabling LCD\n");
 910                 lcd_enabled = 0;
 911                 return;
 912         }
 913         vm = video_mode;
 914         if (karo_fdt_get_fb_mode(working_fdt, video_mode, &fb_mode) == 0) {
 915                 p = &fb_mode;
 916                 debug("Using video mode from FDT\n");
 917                 vm += strlen(vm);
 918                 if (fb_mode.xres > panel_info.vl_col ||
 919                         fb_mode.yres > panel_info.vl_row) {
 920                         printf("video resolution from DT: %dx%d exceeds hardware limits: %dx%d\n",
 921                                 fb_mode.xres, fb_mode.yres,
 922                                 panel_info.vl_col, panel_info.vl_row);
 923                         lcd_enabled = 0;
 924                         return;
 925                 }
 926         }
 927         if (p->name != NULL)
 928                 debug("Trying compiled-in video modes\n");
 929         while (p->name != NULL) {
 930                 if (strcmp(p->name, vm) == 0) {
 931                         debug("Using video mode: '%s'\n", p->name);
 932                         vm += strlen(vm);
 933                         break;
 934                 }
 935                 p++;
 936         }
 937         if (*vm != '\0')
 938                 debug("Trying to decode video_mode: '%s'\n", vm);
 939         while (*vm != '\0') {
 940                 if (*vm >= '0' && *vm <= '9') {
 941                         char *end;
 942
 943                         val = simple_strtoul(vm, &end, 0);
 944                         if (end > vm) {
 945                                 if (!xres_set) {
 946                                         if (val > panel_info.vl_col)
 947                                                 val = panel_info.vl_col;
 948                                         p->xres = val;
 949                                         panel_info.vl_col = val;
 950                                         xres_set = 1;
 951                                 } else if (!yres_set) {
 952                                         if (val > panel_info.vl_row)
 953                                                 val = panel_info.vl_row;
 954                                         p->yres = val;
 955                                         panel_info.vl_row = val;
 956                                         yres_set = 1;
 957                                 } else if (!bpp_set) {
 958                                         switch (val) {
 959                                         case 32:
 960                                         case 24:
 961                                                 if (is_lvds())
 962                                                         pix_fmt = IPU_PIX_FMT_LVDS888;
 963                                                 /* fallthru */
 964                                         case 16:
 965                                         case 8:
 966                                                 color_depth = val;
 967                                                 break;
 968
 969                                         case 18:
 970                                                 if (is_lvds()) {
 971                                                         color_depth = val;
 972                                                         break;
 973                                                 }
 974                                                 /* fallthru */
 975                                         default:
 976                                                 printf("Invalid color depth: '%.*s' in video_mode; using default: '%u'\n",
 977                                                         end - vm, vm, color_depth);
 978                                         }
 979                                         bpp_set = 1;
 980                                 } else if (!refresh_set) {
 981                                         refresh = val;
 982                                         refresh_set = 1;
 983                                 }
 984                         }
 985                         vm = end;
 986                 }
 987                 switch (*vm) {
 988                 case '@':
 989                         bpp_set = 1;
 990                         /* fallthru */
 991                 case '-':
 992                         yres_set = 1;
 993                         /* fallthru */
 994                 case 'x':
 995                         xres_set = 1;
 996                         /* fallthru */
 997                 case 'M':
 998                 case 'R':
 999                         vm++;
1000                         break;
1001
1002                 default:
1003                         if (*vm != '\0')
1004                                 vm++;
1005                 }
1006         }
1007         if (p->xres == 0 || p->yres == 0) {
1008                 printf("Invalid video mode: %s\n", getenv("video_mode"));
1009                 lcd_enabled = 0;
1010                 printf("Supported video modes are:");
1011                 for (p = &tx53_fb_modes[0]; p->name != NULL; p++) {
1012                         printf(" %s", p->name);
1013                 }
1014                 printf("\n");
1015                 return;
1016         }
1017         if (p->xres > panel_info.vl_col || p->yres > panel_info.vl_row) {
1018                 printf("video resolution: %dx%d exceeds hardware limits: %dx%d\n",
1019                         p->xres, p->yres, panel_info.vl_col, panel_info.vl_row);
1020                 lcd_enabled = 0;
1021                 return;
1022         }
1023         panel_info.vl_col = p->xres;
1024         panel_info.vl_row = p->yres;
1025
1026         switch (color_depth) {
1027         case 8:
1028                 panel_info.vl_bpix = LCD_COLOR8;
1029                 break;
1030         case 16:
1031                 panel_info.vl_bpix = LCD_COLOR16;
1032                 break;
1033         default:
1034                 panel_info.vl_bpix = LCD_COLOR24;
1035         }
1036
1037         p->pixclock = KHZ2PICOS(refresh *
1038                 (p->xres + p->left_margin + p->right_margin + p->hsync_len) *
1039                 (p->yres + p->upper_margin + p->lower_margin + p->vsync_len) /
1040                                 1000);
1041         debug("Pixel clock set to %lu.%03lu MHz\n",
1042                 PICOS2KHZ(p->pixclock) / 1000, PICOS2KHZ(p->pixclock) % 1000);
1043
1044         if (p != &fb_mode) {
1045                 int ret;
1046
1047                 debug("Creating new display-timing node from '%s'\n",
1048                         video_mode);
1049                 ret = karo_fdt_create_fb_mode(working_fdt, video_mode, p);
1050                 if (ret)
1051                         printf("Failed to create new display-timing node from '%s': %d\n",
1052                                 video_mode, ret);
1053         }
1054
1055         gpio_request_array(stk5_lcd_gpios, ARRAY_SIZE(stk5_lcd_gpios));
1056         imx_iomux_v3_setup_multiple_pads(stk5_lcd_pads,
1057                                         ARRAY_SIZE(stk5_lcd_pads));
1058
1059         lcd_bus_width = karo_fdt_get_lcd_bus_width(working_fdt, 24);
1060         switch (lcd_bus_width) {
1061         case 24:
1062                 pix_fmt = is_lvds() ? IPU_PIX_FMT_LVDS888 : IPU_PIX_FMT_RGB24;
1063                 break;
1064
1065         case 18:
1066                 pix_fmt = is_lvds() ? IPU_PIX_FMT_LVDS666 : IPU_PIX_FMT_RGB666;
1067                 break;
1068
1069         case 16:
1070                 if (!is_lvds()) {
1071                         pix_fmt = IPU_PIX_FMT_RGB565;
1072                         break;
1073                 }
1074                 /* fallthru */
1075         default:
1076                 lcd_enabled = 0;
1077                 printf("Invalid %s bus width: %d\n", is_lvds() ? "LVDS" : "LCD",
1078                         lcd_bus_width);
1079                 return;
1080         }
1081         if (is_lvds()) {
1082                 int lvds_mapping = karo_fdt_get_lvds_mapping(working_fdt, 0);
1083                 int lvds_chan_mask = karo_fdt_get_lvds_channels(working_fdt);
1084                 uint32_t gpr2;
1085
1086                 if (lvds_chan_mask == 0) {
1087                         printf("No LVDS channel active\n");
1088                         lcd_enabled = 0;
1089                         return;
1090                 }
1091
1092                 gpr2 = (lvds_mapping << 6) | (lvds_mapping << 8);
1093                 if (lcd_bus_width == 24)
1094                         gpr2 |= (1 << 5) | (1 << 7);
1095                 gpr2 |= (lvds_chan_mask & 1) ? 1 << 0 : 0;
1096                 gpr2 |= (lvds_chan_mask & 2) ? 3 << 2 : 0;
1097                 debug("writing %08x to GPR2[%08x]\n", gpr2, IOMUXC_BASE_ADDR + 8);
1098                 writel(gpr2, IOMUXC_BASE_ADDR + 8);
1099         }
1100         if (karo_load_splashimage(0) == 0) {
1101                 int ret;
1102
1103                 gd->arch.ipu_hw_rev = IPUV3_HW_REV_IPUV3M;
1104
1105                 debug("Initializing LCD controller\n");
1106                 ret = ipuv3_fb_init(p, 0, pix_fmt, di_clk_parent, di_clk_rate, -1);
1107                 if (ret) {
1108                         printf("Failed to initialize FB driver: %d\n", ret);
1109                         lcd_enabled = 0;
1110                 }
1111         } else {
1112                 debug("Skipping initialization of LCD controller\n");
1113         }
1114 }
1115 #else
1116 #define lcd_enabled 0
1117 #endif /* CONFIG_LCD */
1118
1119 static void stk5_board_init(void)
1120 {
1121         gpio_request_array(stk5_gpios, ARRAY_SIZE(stk5_gpios));
1122         imx_iomux_v3_setup_multiple_pads(stk5_pads, ARRAY_SIZE(stk5_pads));
1123 }
1124
1125 static void stk5v3_board_init(void)
1126 {
1127         stk5_board_init();
1128 }
1129
1130 static void stk5v5_board_init(void)
1131 {
1132         stk5_board_init();
1133
1134         gpio_request_one(IMX_GPIO_NR(4, 21), GPIOF_OUTPUT_INIT_HIGH,
1135                         "Flexcan Transceiver");
1136         imx_iomux_v3_setup_pad(MX53_PAD_DISP0_DAT0__GPIO4_21);
1137 }
1138
1139 static void tx53_set_cpu_clock(void)
1140 {
1141         unsigned long cpu_clk = getenv_ulong("cpu_clk", 10, 0);
1142
1143         if (had_ctrlc() || (wrsr & WRSR_TOUT))
1144                 return;
1145
1146         if (cpu_clk == 0 || cpu_clk == mxc_get_clock(MXC_ARM_CLK) / 1000000)
1147                 return;
1148
1149         if (mxc_set_clock(CONFIG_SYS_MX5_HCLK, cpu_clk, MXC_ARM_CLK) == 0) {
1150                 cpu_clk = mxc_get_clock(MXC_ARM_CLK);
1151                 printf("CPU clock set to %lu.%03lu MHz\n",
1152                         cpu_clk / 1000000, cpu_clk / 1000 % 1000);
1153         } else {
1154                 printf("Error: Failed to set CPU clock to %lu MHz\n", cpu_clk);
1155         }
1156 }
1157
1158 static void tx53_init_mac(void)
1159 {
1160         u8 mac[ETH_ALEN];
1161
1162         imx_get_mac_from_fuse(0, mac);
1163         if (!is_valid_ether_addr(mac)) {
1164                 printf("No valid MAC address programmed\n");
1165                 return;
1166         }
1167
1168         printf("MAC addr from fuse: %pM\n", mac);
1169         eth_setenv_enetaddr("ethaddr", mac);
1170 }
1171
1172 int board_late_init(void)
1173 {
1174         int ret = 0;
1175         const char *baseboard;
1176
1177         tx53_set_cpu_clock();
1178         karo_fdt_move_fdt();
1179
1180         baseboard = getenv("baseboard");
1181         if (!baseboard)
1182                 goto exit;
1183
1184         printf("Baseboard: %s\n", baseboard);
1185
1186         if (strncmp(baseboard, "stk5", 4) == 0) {
1187                 if ((strlen(baseboard) == 4) ||
1188                         strcmp(baseboard, "stk5-v3") == 0) {
1189                         stk5v3_board_init();
1190                 } else if (strcmp(baseboard, "stk5-v5") == 0) {
1191                         const char *otg_mode = getenv("otg_mode");
1192
1193                         if (otg_mode && strcmp(otg_mode, "host") == 0) {
1194                                 printf("otg_mode='%s' is incompatible with baseboard %s; setting to 'none'\n",
1195                                         otg_mode, baseboard);
1196                                 setenv("otg_mode", "none");
1197                         }
1198                         stk5v5_board_init();
1199                 } else {
1200                         printf("WARNING: Unsupported STK5 board rev.: %s\n",
1201                                 baseboard + 4);
1202                 }
1203         } else {
1204                 printf("WARNING: Unsupported baseboard: '%s'\n",
1205                         baseboard);
1206                 ret = -EINVAL;
1207         }
1208
1209 exit:
1210         tx53_init_mac();
1211
1212         gpio_set_value(TX53_RESET_OUT_GPIO, 1);
1213         clear_ctrlc();
1214         return ret;
1215 }
1216
1217 int checkboard(void)
1218 {
1219         tx53_print_cpuinfo();
1220
1221         printf("Board: Ka-Ro TX53-x%d3%s\n",
1222                 is_lvds(), TX53_MOD_SUFFIX);
1223
1224         return 0;
1225 }
1226
1227 #if defined(CONFIG_OF_BOARD_SETUP)
1228 #ifdef CONFIG_FDT_FIXUP_PARTITIONS
1229 #include <jffs2/jffs2.h>
1230 #include <mtd_node.h>
1231 static struct node_info nodes[] = {
1232         { "fsl,imx53-nand", MTD_DEV_TYPE_NAND, },
1233 };
1234 #else
1235 #define fdt_fixup_mtdparts(b,n,c) do { } while (0)
1236 #endif
1237
1238 #ifdef CONFIG_SYS_TX53_HWREV_2
1239 static void tx53_fixup_rtc(void *blob)
1240 {
1241         karo_fdt_del_prop(blob, "dallas,ds1339", 0x68, "interrupt-parent");
1242         karo_fdt_del_prop(blob, "dallas,ds1339", 0x68, "interrupts");
1243 }
1244 #else
1245 static inline void tx53_fixup_rtc(void *blob)
1246 {
1247 }
1248 #endif /* CONFIG_SYS_TX53_HWREV_2 */
1249
1250 static const char *tx53_touchpanels[] = {
1251         "ti,tsc2007",
1252         "edt,edt-ft5x06",
1253         "eeti,egalax_ts",
1254 };
1255
1256 void ft_board_setup(void *blob, bd_t *bd)
1257 {
1258         const char *baseboard = getenv("baseboard");
1259         int stk5_v5 = baseboard != NULL && (strcmp(baseboard, "stk5-v5") == 0);
1260         const char *video_mode = karo_get_vmode(getenv("video_mode"));
1261
1262         fdt_fixup_mtdparts(blob, nodes, ARRAY_SIZE(nodes));
1263         fdt_fixup_ethernet(blob);
1264
1265         karo_fdt_fixup_touchpanel(blob, tx53_touchpanels,
1266                                 ARRAY_SIZE(tx53_touchpanels));
1267         karo_fdt_fixup_usb_otg(blob, "usbotg", "fsl,usbphy");
1268         karo_fdt_fixup_flexcan(blob, stk5_v5);
1269         tx53_fixup_rtc(blob);
1270         karo_fdt_update_fb_mode(blob, video_mode);
1271 }
1272 #endif /* CONFIG_OF_BOARD_SETUP */