board/ttcontrol/vision2/vision2.c

   1 /*
   2  * (C) Copyright 2010
   3  * Stefano Babic, DENX Software Engineering, sbabic@denx.de.
   4  *
   5  * (C) Copyright 2009 Freescale Semiconductor, Inc.
   6  *
   7  * See file CREDITS for list of people who contributed to this
   8  * project.
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License as
  12  * published by the Free Software Foundation; either version 2 of
  13  * the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  23  * MA 02111-1307 USA
  24  */
  25
  26 #include <common.h>
  27 #include <asm/io.h>
  28 #include <asm/arch/imx-regs.h>
  29 #include <asm/arch/mx5x_pins.h>
  30 #include <asm/arch/crm_regs.h>
  31 #include <asm/arch/iomux.h>
  32 #include <asm/gpio.h>
  33 #include <asm/arch/sys_proto.h>
  34 #include <i2c.h>
  35 #include <mmc.h>
  36 #include <pmic.h>
  37 #include <fsl_esdhc.h>
  38 #include <fsl_pmic.h>
  39 #include <mc13892.h>
  40 #include <linux/fb.h>
  41
  42 #include <ipu_pixfmt.h>
  43
  44 DECLARE_GLOBAL_DATA_PTR;
  45
  46 static struct fb_videomode nec_nl6448bc26_09c = {
  47         "NEC_NL6448BC26-09C",
  48         60,     /* Refresh */
  49         640,    /* xres */
  50         480,    /* yres */
  51         37650,  /* pixclock = 26.56Mhz */
  52         48,     /* left margin */
  53         16,     /* right margin */
  54         31,     /* upper margin */
  55         12,     /* lower margin */
  56         96,     /* hsync-len */
  57         2,      /* vsync-len */
  58         0,      /* sync */
  59         FB_VMODE_NONINTERLACED, /* vmode */
  60         0,      /* flag */
  61 };
  62
  63 #ifdef CONFIG_HW_WATCHDOG
  64 #include <watchdog.h>
  65 void hw_watchdog_reset(void)
  66 {
  67         int val;
  68
  69         /* toggle watchdog trigger pin */
  70         val = gpio_get_value(66);
  71         val = val ? 0 : 1;
  72         gpio_set_value(66, val);
  73 }
  74 #endif
  75
  76 static void init_drive_strength(void)
  77 {
  78         mxc_iomux_set_pad(MX51_PIN_CTL_GRP_PKEDDR, PAD_CTL_DDR_INPUT_CMOS);
  79         mxc_iomux_set_pad(MX51_PIN_CTL_GRP_PKEADDR, PAD_CTL_PKE_ENABLE);
  80         mxc_iomux_set_pad(MX51_PIN_CTL_GRP_DDRAPKS, PAD_CTL_PUE_KEEPER);
  81         mxc_iomux_set_pad(MX51_PIN_CTL_GRP_DDRAPUS, PAD_CTL_100K_PU);
  82         mxc_iomux_set_pad(MX51_PIN_CTL_GRP_DDR_SR_A1, PAD_CTL_SRE_FAST);
  83         mxc_iomux_set_pad(MX51_PIN_CTL_GRP_DDR_A0, PAD_CTL_DRV_HIGH);
  84         mxc_iomux_set_pad(MX51_PIN_CTL_GRP_DDR_A1, PAD_CTL_DRV_HIGH);
  85         mxc_iomux_set_pad(MX51_PIN_CTL_DRAM_RAS,
  86                 PAD_CTL_DRV_HIGH | PAD_CTL_SRE_FAST);
  87         mxc_iomux_set_pad(MX51_PIN_CTL_DRAM_CAS,
  88                 PAD_CTL_DRV_HIGH | PAD_CTL_SRE_FAST);
  89         mxc_iomux_set_pad(MX51_PIN_CTL_GRP_PKEDDR, PAD_CTL_PKE_ENABLE);
  90         mxc_iomux_set_pad(MX51_PIN_CTL_GRP_DDRPKS, PAD_CTL_PUE_KEEPER);
  91         mxc_iomux_set_pad(MX51_PIN_CTL_GRP_HYSDDR0, PAD_CTL_HYS_NONE);
  92         mxc_iomux_set_pad(MX51_PIN_CTL_GRP_HYSDDR1, PAD_CTL_HYS_NONE);
  93         mxc_iomux_set_pad(MX51_PIN_CTL_GRP_HYSDDR2, PAD_CTL_HYS_NONE);
  94         mxc_iomux_set_pad(MX51_PIN_CTL_GRP_HYSDDR3, PAD_CTL_HYS_NONE);
  95         mxc_iomux_set_pad(MX51_PIN_CTL_GRP_DDR_SR_B0, PAD_CTL_SRE_FAST);
  96         mxc_iomux_set_pad(MX51_PIN_CTL_GRP_DDR_SR_B1, PAD_CTL_SRE_FAST);
  97         mxc_iomux_set_pad(MX51_PIN_CTL_GRP_DDR_SR_B2, PAD_CTL_SRE_FAST);
  98         mxc_iomux_set_pad(MX51_PIN_CTL_GRP_DDR_SR_B4, PAD_CTL_SRE_FAST);
  99         mxc_iomux_set_pad(MX51_PIN_CTL_GRP_DDRPUS, PAD_CTL_100K_PU);
 100         mxc_iomux_set_pad(MX51_PIN_CTL_GRP_INMODE1, PAD_CTL_DDR_INPUT_CMOS);
 101         mxc_iomux_set_pad(MX51_PIN_CTL_GRP_DRAM_B0, PAD_CTL_DRV_MEDIUM);
 102         mxc_iomux_set_pad(MX51_PIN_CTL_GRP_DRAM_B1, PAD_CTL_DRV_MEDIUM);
 103         mxc_iomux_set_pad(MX51_PIN_CTL_GRP_DRAM_B2, PAD_CTL_DRV_MEDIUM);
 104         mxc_iomux_set_pad(MX51_PIN_CTL_GRP_DRAM_B4, PAD_CTL_DRV_MEDIUM);
 105
 106         /* Setting pad options */
 107         mxc_iomux_set_pad(MX51_PIN_CTL_DRAM_SDWE,
 108                 PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER |
 109                 PAD_CTL_DRV_HIGH | PAD_CTL_SRE_FAST);
 110         mxc_iomux_set_pad(MX51_PIN_CTL_DRAM_SDCKE0,
 111                 PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER |
 112                 PAD_CTL_DRV_HIGH | PAD_CTL_SRE_FAST);
 113         mxc_iomux_set_pad(MX51_PIN_CTL_DRAM_SDCKE1,
 114                 PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER |
 115                 PAD_CTL_DRV_HIGH | PAD_CTL_SRE_FAST);
 116         mxc_iomux_set_pad(MX51_PIN_CTL_DRAM_SDCLK,
 117                 PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER |
 118                 PAD_CTL_DRV_HIGH | PAD_CTL_SRE_FAST);
 119         mxc_iomux_set_pad(MX51_PIN_CTL_DRAM_SDQS0,
 120                 PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER |
 121                 PAD_CTL_DRV_HIGH | PAD_CTL_SRE_FAST);
 122         mxc_iomux_set_pad(MX51_PIN_CTL_DRAM_SDQS1,
 123                 PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER |
 124                 PAD_CTL_DRV_HIGH | PAD_CTL_SRE_FAST);
 125         mxc_iomux_set_pad(MX51_PIN_CTL_DRAM_SDQS2,
 126                 PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER |
 127                 PAD_CTL_DRV_HIGH | PAD_CTL_SRE_FAST);
 128         mxc_iomux_set_pad(MX51_PIN_CTL_DRAM_SDQS3,
 129                 PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER |
 130                 PAD_CTL_DRV_HIGH | PAD_CTL_SRE_FAST);
 131         mxc_iomux_set_pad(MX51_PIN_CTL_DRAM_CS0,
 132                 PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER |
 133                 PAD_CTL_DRV_HIGH | PAD_CTL_SRE_FAST);
 134         mxc_iomux_set_pad(MX51_PIN_CTL_DRAM_CS1,
 135                 PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER |
 136                 PAD_CTL_DRV_HIGH | PAD_CTL_SRE_FAST);
 137         mxc_iomux_set_pad(MX51_PIN_CTL_DRAM_DQM0,
 138                 PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER |
 139                 PAD_CTL_DRV_HIGH | PAD_CTL_SRE_FAST);
 140         mxc_iomux_set_pad(MX51_PIN_CTL_DRAM_DQM1,
 141                 PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER |
 142                 PAD_CTL_DRV_HIGH | PAD_CTL_SRE_FAST);
 143         mxc_iomux_set_pad(MX51_PIN_CTL_DRAM_DQM2,
 144                 PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER |
 145                 PAD_CTL_DRV_HIGH | PAD_CTL_SRE_FAST);
 146         mxc_iomux_set_pad(MX51_PIN_CTL_DRAM_DQM3,
 147                 PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER |
 148                 PAD_CTL_DRV_HIGH | PAD_CTL_SRE_FAST);
 149 }
 150
 151 int dram_init(void)
 152 {
 153         gd->ram_size = get_ram_size((long *)PHYS_SDRAM_1,
 154                 PHYS_SDRAM_1_SIZE);
 155
 156         return 0;
 157 }
 158
 159 static void setup_weim(void)
 160 {
 161         struct weim  *pweim = (struct weim *)WEIM_BASE_ADDR;
 162
 163         pweim->cs0gcr1 = 0x004100b9;
 164         pweim->cs0gcr2 = 0x00000001;
 165         pweim->cs0rcr1 = 0x0a018000;
 166         pweim->cs0rcr2 = 0;
 167         pweim->cs0wcr1 = 0x0704a240;
 168 }
 169
 170 static void setup_uart(void)
 171 {
 172         unsigned int pad = PAD_CTL_HYS_ENABLE | PAD_CTL_PKE_ENABLE |
 173                          PAD_CTL_PUE_PULL | PAD_CTL_DRV_HIGH | PAD_CTL_SRE_FAST;
 174         /* console RX on Pin EIM_D25 */
 175         mxc_request_iomux(MX51_PIN_EIM_D25, IOMUX_CONFIG_ALT3);
 176         mxc_iomux_set_pad(MX51_PIN_EIM_D25, pad);
 177         /* console TX on Pin EIM_D26 */
 178         mxc_request_iomux(MX51_PIN_EIM_D26, IOMUX_CONFIG_ALT3);
 179         mxc_iomux_set_pad(MX51_PIN_EIM_D26, pad);
 180 }
 181
 182 #ifdef CONFIG_MXC_SPI
 183 void spi_io_init(void)
 184 {
 185         /* 000: Select mux mode: ALT0 mux port: MOSI of instance: ecspi1 */
 186         mxc_request_iomux(MX51_PIN_CSPI1_MOSI, IOMUX_CONFIG_ALT0);
 187         mxc_iomux_set_pad(MX51_PIN_CSPI1_MOSI,
 188                 PAD_CTL_HYS_ENABLE | PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST);
 189
 190         /* 000: Select mux mode: ALT0 mux port: MISO of instance: ecspi1. */
 191         mxc_request_iomux(MX51_PIN_CSPI1_MISO, IOMUX_CONFIG_ALT0);
 192         mxc_iomux_set_pad(MX51_PIN_CSPI1_MISO,
 193                 PAD_CTL_HYS_ENABLE | PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST);
 194
 195         /* 000: Select mux mode: ALT0 mux port: SS0 of instance: ecspi1. */
 196         mxc_request_iomux(MX51_PIN_CSPI1_SS0, IOMUX_CONFIG_ALT0);
 197         mxc_iomux_set_pad(MX51_PIN_CSPI1_SS0,
 198                 PAD_CTL_HYS_ENABLE | PAD_CTL_PKE_ENABLE |
 199                 PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST);
 200
 201         /*
 202          * SS1 will be used as GPIO because of uninterrupted
 203          * long SPI transmissions (GPIO4_25)
 204          */
 205         mxc_request_iomux(MX51_PIN_CSPI1_SS1, IOMUX_CONFIG_ALT3);
 206         mxc_iomux_set_pad(MX51_PIN_CSPI1_SS1,
 207                 PAD_CTL_HYS_ENABLE | PAD_CTL_PKE_ENABLE |
 208                 PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST);
 209
 210         /* 000: Select mux mode: ALT0 mux port: SS2 of instance: ecspi1. */
 211         mxc_request_iomux(MX51_PIN_DI1_PIN11, IOMUX_CONFIG_ALT7);
 212         mxc_iomux_set_pad(MX51_PIN_DI1_PIN11,
 213                 PAD_CTL_HYS_ENABLE | PAD_CTL_PKE_ENABLE |
 214                 PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST);
 215
 216         /* 000: Select mux mode: ALT0 mux port: SCLK of instance: ecspi1. */
 217         mxc_request_iomux(MX51_PIN_CSPI1_SCLK, IOMUX_CONFIG_ALT0);
 218         mxc_iomux_set_pad(MX51_PIN_CSPI1_SCLK,
 219                 PAD_CTL_HYS_ENABLE | PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST);
 220 }
 221
 222 static void reset_peripherals(int reset)
 223 {
 224         if (reset) {
 225
 226                 /* reset_n is on NANDF_D15 */
 227                 gpio_direction_output(89, 0);
 228
 229 #ifdef CONFIG_VISION2_HW_1_0
 230                 /*
 231                  * set FEC Configuration lines
 232                  * set levels of FEC config lines
 233                  */
 234                 gpio_direction_output(75, 0);
 235                 gpio_direction_output(74, 1);
 236                 gpio_direction_output(95, 1);
 237
 238                 /* set direction of FEC config lines */
 239                 gpio_direction_output(59, 0);
 240                 gpio_direction_output(60, 0);
 241                 gpio_direction_output(61, 0);
 242                 gpio_direction_output(55, 1);
 243
 244                 /* FEC_RXD1 - sel GPIO (2-23) for configuration -> 1 */
 245                 mxc_request_iomux(MX51_PIN_EIM_EB3, IOMUX_CONFIG_ALT1);
 246                 /* FEC_RXD2 - sel GPIO (2-27) for configuration -> 0 */
 247                 mxc_request_iomux(MX51_PIN_EIM_CS2, IOMUX_CONFIG_ALT1);
 248                 /* FEC_RXD3 - sel GPIO (2-28) for configuration -> 0 */
 249                 mxc_request_iomux(MX51_PIN_EIM_CS3, IOMUX_CONFIG_ALT1);
 250                 /* FEC_RXER - sel GPIO (2-29) for configuration -> 0 */
 251                 mxc_request_iomux(MX51_PIN_EIM_CS4, IOMUX_CONFIG_ALT1);
 252                 /* FEC_COL  - sel GPIO (3-10) for configuration -> 1 */
 253                 mxc_request_iomux(MX51_PIN_NANDF_RB2, IOMUX_CONFIG_ALT3);
 254                 /* FEC_RCLK - sel GPIO (3-11) for configuration -> 0 */
 255                 mxc_request_iomux(MX51_PIN_NANDF_RB3, IOMUX_CONFIG_ALT3);
 256                 /* FEC_RXD0 - sel GPIO (3-31) for configuration -> 1 */
 257                 mxc_request_iomux(MX51_PIN_NANDF_D9, IOMUX_CONFIG_ALT3);
 258 #endif
 259
 260                 /*
 261                  * activate reset_n pin
 262                  * Select mux mode: ALT3 mux port: NAND D15
 263                  */
 264                 mxc_request_iomux(MX51_PIN_NANDF_D15, IOMUX_CONFIG_ALT3);
 265                 mxc_iomux_set_pad(MX51_PIN_NANDF_D15,
 266                         PAD_CTL_DRV_VOT_HIGH | PAD_CTL_DRV_MAX);
 267         } else {
 268                 /* set FEC Control lines */
 269                 gpio_direction_input(89);
 270                 udelay(500);
 271
 272 #ifdef CONFIG_VISION2_HW_1_0
 273                 /* FEC RDATA[3] */
 274                 mxc_request_iomux(MX51_PIN_EIM_CS3, IOMUX_CONFIG_ALT3);
 275                 mxc_iomux_set_pad(MX51_PIN_EIM_CS3, 0x180);
 276
 277                 /* FEC RDATA[2] */
 278                 mxc_request_iomux(MX51_PIN_EIM_CS2, IOMUX_CONFIG_ALT3);
 279                 mxc_iomux_set_pad(MX51_PIN_EIM_CS2, 0x180);
 280
 281                 /* FEC RDATA[1] */
 282                 mxc_request_iomux(MX51_PIN_EIM_EB3, IOMUX_CONFIG_ALT3);
 283                 mxc_iomux_set_pad(MX51_PIN_EIM_EB3, 0x180);
 284
 285                 /* FEC RDATA[0] */
 286                 mxc_request_iomux(MX51_PIN_NANDF_D9, IOMUX_CONFIG_ALT2);
 287                 mxc_iomux_set_pad(MX51_PIN_NANDF_D9, 0x2180);
 288
 289                 /* FEC RX_CLK */
 290                 mxc_request_iomux(MX51_PIN_NANDF_RB3, IOMUX_CONFIG_ALT1);
 291                 mxc_iomux_set_pad(MX51_PIN_NANDF_RB3, 0x2180);
 292
 293                 /* FEC RX_ER */
 294                 mxc_request_iomux(MX51_PIN_EIM_CS4, IOMUX_CONFIG_ALT3);
 295                 mxc_iomux_set_pad(MX51_PIN_EIM_CS4, 0x180);
 296
 297                 /* FEC COL */
 298                 mxc_request_iomux(MX51_PIN_NANDF_RB2, IOMUX_CONFIG_ALT1);
 299                 mxc_iomux_set_pad(MX51_PIN_NANDF_RB2, 0x2180);
 300 #endif
 301         }
 302 }
 303
 304 static void power_init_mx51(void)
 305 {
 306         unsigned int val;
 307         struct pmic *p;
 308
 309         pmic_init();
 310         p = get_pmic();
 311
 312         /* Write needed to Power Gate 2 register */
 313         pmic_reg_read(p, REG_POWER_MISC, &val);
 314
 315         /* enable VCAM with 2.775V to enable read from PMIC */
 316         val = VCAMCONFIG | VCAMEN;
 317         pmic_reg_write(p, REG_MODE_1, val);
 318
 319         /*
 320          * Set switchers in Auto in NORMAL mode & STANDBY mode
 321          * Setup the switcher mode for SW1 & SW2
 322          */
 323         pmic_reg_read(p, REG_SW_4, &val);
 324         val = (val & ~((SWMODE_MASK << SWMODE1_SHIFT) |
 325                 (SWMODE_MASK << SWMODE2_SHIFT)));
 326         val |= (SWMODE_AUTO_AUTO << SWMODE1_SHIFT) |
 327                 (SWMODE_AUTO_AUTO << SWMODE2_SHIFT);
 328         pmic_reg_write(p, REG_SW_4, val);
 329
 330         /* Setup the switcher mode for SW3 & SW4 */
 331         pmic_reg_read(p, REG_SW_5, &val);
 332         val &= ~((SWMODE_MASK << SWMODE4_SHIFT) |
 333                 (SWMODE_MASK << SWMODE3_SHIFT));
 334         val |= (SWMODE_AUTO_AUTO << SWMODE4_SHIFT) |
 335                 (SWMODE_AUTO_AUTO << SWMODE3_SHIFT);
 336         pmic_reg_write(p, REG_SW_5, val);
 337
 338
 339         /* Set VGEN3 to 1.8V, VCAM to 3.0V */
 340         pmic_reg_read(p, REG_SETTING_0, &val);
 341         val &= ~(VCAM_MASK | VGEN3_MASK);
 342         val |= VCAM_3_0;
 343         pmic_reg_write(p, REG_SETTING_0, val);
 344
 345         /* Set VVIDEO to 2.775V, VAUDIO to 3V0, VSD to 1.8V */
 346         pmic_reg_read(p, REG_SETTING_1, &val);
 347         val &= ~(VVIDEO_MASK | VSD_MASK | VAUDIO_MASK);
 348         val |= VVIDEO_2_775 | VAUDIO_3_0 | VSD_1_8;
 349         pmic_reg_write(p, REG_SETTING_1, val);
 350
 351         /* Configure VGEN3 and VCAM regulators to use external PNP */
 352         val = VGEN3CONFIG | VCAMCONFIG;
 353         pmic_reg_write(p, REG_MODE_1, val);
 354         udelay(200);
 355
 356         /* Enable VGEN3, VCAM, VAUDIO, VVIDEO, VSD regulators */
 357         val = VGEN3EN | VGEN3CONFIG | VCAMEN | VCAMCONFIG |
 358                 VVIDEOEN | VAUDIOEN  | VSDEN;
 359         pmic_reg_write(p, REG_MODE_1, val);
 360
 361         pmic_reg_read(p, REG_POWER_CTL2, &val);
 362         val |= WDIRESET;
 363         pmic_reg_write(p, REG_POWER_CTL2, val);
 364
 365         udelay(2500);
 366
 367 }
 368 #endif
 369
 370 static void setup_gpios(void)
 371 {
 372         unsigned int i;
 373
 374         /* CAM_SUP_DISn, GPIO1_7 */
 375         mxc_request_iomux(MX51_PIN_GPIO1_7, IOMUX_CONFIG_ALT0);
 376         mxc_iomux_set_pad(MX51_PIN_GPIO1_7, 0x82);
 377
 378         /* DAB Display EN, GPIO3_1 */
 379         mxc_request_iomux(MX51_PIN_DI1_PIN12, IOMUX_CONFIG_ALT4);
 380         mxc_iomux_set_pad(MX51_PIN_DI1_PIN12, 0x82);
 381
 382         /* WDOG_TRIGGER, GPIO3_2 */
 383         mxc_request_iomux(MX51_PIN_DI1_PIN13, IOMUX_CONFIG_ALT4);
 384         mxc_iomux_set_pad(MX51_PIN_DI1_PIN13, 0x82);
 385
 386         /* Now we need to trigger the watchdog */
 387         WATCHDOG_RESET();
 388
 389         /* Display2 TxEN, GPIO3_3 */
 390         mxc_request_iomux(MX51_PIN_DI1_D0_CS, IOMUX_CONFIG_ALT4);
 391         mxc_iomux_set_pad(MX51_PIN_DI1_D0_CS, 0x82);
 392
 393         /* DAB Light EN, GPIO3_4 */
 394         mxc_request_iomux(MX51_PIN_DI1_D1_CS, IOMUX_CONFIG_ALT4);
 395         mxc_iomux_set_pad(MX51_PIN_DI1_D1_CS, 0x82);
 396
 397         /* AUDIO_MUTE, GPIO3_5 */
 398         mxc_request_iomux(MX51_PIN_DISPB2_SER_DIN, IOMUX_CONFIG_ALT4);
 399         mxc_iomux_set_pad(MX51_PIN_DISPB2_SER_DIN, 0x82);
 400
 401         /* SPARE_OUT, GPIO3_6 */
 402         mxc_request_iomux(MX51_PIN_DISPB2_SER_DIO, IOMUX_CONFIG_ALT4);
 403         mxc_iomux_set_pad(MX51_PIN_DISPB2_SER_DIO, 0x82);
 404
 405         /* BEEPER_EN, GPIO3_26 */
 406         mxc_request_iomux(MX51_PIN_NANDF_D14, IOMUX_CONFIG_ALT3);
 407         mxc_iomux_set_pad(MX51_PIN_NANDF_D14, 0x82);
 408
 409         /* POWER_OFF, GPIO3_27 */
 410         mxc_request_iomux(MX51_PIN_NANDF_D13, IOMUX_CONFIG_ALT3);
 411         mxc_iomux_set_pad(MX51_PIN_NANDF_D13, 0x82);
 412
 413         /* FRAM_WE, GPIO3_30 */
 414         mxc_request_iomux(MX51_PIN_NANDF_D10, IOMUX_CONFIG_ALT3);
 415         mxc_iomux_set_pad(MX51_PIN_NANDF_D10, 0x82);
 416
 417         /* EXPANSION_EN, GPIO4_26 */
 418         mxc_request_iomux(MX51_PIN_CSPI1_RDY, IOMUX_CONFIG_ALT3);
 419         mxc_iomux_set_pad(MX51_PIN_CSPI1_RDY, 0x82);
 420
 421         /* PWM Output GPIO1_2 */
 422         mxc_request_iomux(MX51_PIN_GPIO1_2, IOMUX_CONFIG_ALT1);
 423
 424         /*
 425          * Set GPIO1_4 to high and output; it is used to reset
 426          * the system on reboot
 427          */
 428         gpio_direction_output(4, 1);
 429
 430         gpio_direction_output(7, 0);
 431         for (i = 65; i < 71; i++)
 432                 gpio_direction_output(i, 0);
 433
 434         gpio_direction_output(94, 0);
 435
 436         /* Set POWER_OFF high */
 437         gpio_direction_output(91, 1);
 438
 439         gpio_direction_output(90, 0);
 440
 441         gpio_direction_output(122, 0);
 442
 443         gpio_direction_output(121, 1);
 444
 445         WATCHDOG_RESET();
 446 }
 447
 448 static void setup_fec(void)
 449 {
 450         /*FEC_MDIO*/
 451         mxc_request_iomux(MX51_PIN_EIM_EB2, IOMUX_CONFIG_ALT3);
 452         mxc_iomux_set_pad(MX51_PIN_EIM_EB2, 0x1FD);
 453
 454         /*FEC_MDC*/
 455         mxc_request_iomux(MX51_PIN_NANDF_CS3, IOMUX_CONFIG_ALT2);
 456         mxc_iomux_set_pad(MX51_PIN_NANDF_CS3, 0x2004);
 457
 458         /* FEC RDATA[3] */
 459         mxc_request_iomux(MX51_PIN_EIM_CS3, IOMUX_CONFIG_ALT3);
 460         mxc_iomux_set_pad(MX51_PIN_EIM_CS3, 0x180);
 461
 462         /* FEC RDATA[2] */
 463         mxc_request_iomux(MX51_PIN_EIM_CS2, IOMUX_CONFIG_ALT3);
 464         mxc_iomux_set_pad(MX51_PIN_EIM_CS2, 0x180);
 465
 466         /* FEC RDATA[1] */
 467         mxc_request_iomux(MX51_PIN_EIM_EB3, IOMUX_CONFIG_ALT3);
 468         mxc_iomux_set_pad(MX51_PIN_EIM_EB3, 0x180);
 469
 470         /* FEC RDATA[0] */
 471         mxc_request_iomux(MX51_PIN_NANDF_D9, IOMUX_CONFIG_ALT2);
 472         mxc_iomux_set_pad(MX51_PIN_NANDF_D9, 0x2180);
 473
 474         /* FEC TDATA[3] */
 475         mxc_request_iomux(MX51_PIN_NANDF_CS6, IOMUX_CONFIG_ALT2);
 476         mxc_iomux_set_pad(MX51_PIN_NANDF_CS6, 0x2004);
 477
 478         /* FEC TDATA[2] */
 479         mxc_request_iomux(MX51_PIN_NANDF_CS5, IOMUX_CONFIG_ALT2);
 480         mxc_iomux_set_pad(MX51_PIN_NANDF_CS5, 0x2004);
 481
 482         /* FEC TDATA[1] */
 483         mxc_request_iomux(MX51_PIN_NANDF_CS4, IOMUX_CONFIG_ALT2);
 484         mxc_iomux_set_pad(MX51_PIN_NANDF_CS4, 0x2004);
 485
 486         /* FEC TDATA[0] */
 487         mxc_request_iomux(MX51_PIN_NANDF_D8, IOMUX_CONFIG_ALT2);
 488         mxc_iomux_set_pad(MX51_PIN_NANDF_D8, 0x2004);
 489
 490         /* FEC TX_EN */
 491         mxc_request_iomux(MX51_PIN_NANDF_CS7, IOMUX_CONFIG_ALT1);
 492         mxc_iomux_set_pad(MX51_PIN_NANDF_CS7, 0x2004);
 493
 494         /* FEC TX_ER */
 495         mxc_request_iomux(MX51_PIN_NANDF_CS2, IOMUX_CONFIG_ALT2);
 496         mxc_iomux_set_pad(MX51_PIN_NANDF_CS2, 0x2004);
 497
 498         /* FEC TX_CLK */
 499         mxc_request_iomux(MX51_PIN_NANDF_RDY_INT, IOMUX_CONFIG_ALT1);
 500         mxc_iomux_set_pad(MX51_PIN_NANDF_RDY_INT, 0x2180);
 501
 502         /* FEC TX_COL */
 503         mxc_request_iomux(MX51_PIN_NANDF_RB2, IOMUX_CONFIG_ALT1);
 504         mxc_iomux_set_pad(MX51_PIN_NANDF_RB2, 0x2180);
 505
 506         /* FEC RX_CLK */
 507         mxc_request_iomux(MX51_PIN_NANDF_RB3, IOMUX_CONFIG_ALT1);
 508         mxc_iomux_set_pad(MX51_PIN_NANDF_RB3, 0x2180);
 509
 510         /* FEC RX_CRS */
 511         mxc_request_iomux(MX51_PIN_EIM_CS5, IOMUX_CONFIG_ALT3);
 512         mxc_iomux_set_pad(MX51_PIN_EIM_CS5, 0x180);
 513
 514         /* FEC RX_ER */
 515         mxc_request_iomux(MX51_PIN_EIM_CS4, IOMUX_CONFIG_ALT3);
 516         mxc_iomux_set_pad(MX51_PIN_EIM_CS4, 0x180);
 517
 518         /* FEC RX_DV */
 519         mxc_request_iomux(MX51_PIN_NANDF_D11, IOMUX_CONFIG_ALT2);
 520         mxc_iomux_set_pad(MX51_PIN_NANDF_D11, 0x2180);
 521 }
 522
 523 struct fsl_esdhc_cfg esdhc_cfg[1] = {
 524         {MMC_SDHC1_BASE_ADDR, 1},
 525 };
 526
 527 int get_mmc_getcd(u8 *cd, struct mmc *mmc)
 528 {
 529         struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
 530
 531         if (cfg->esdhc_base == MMC_SDHC1_BASE_ADDR)
 532                 *cd = gpio_get_value(0);
 533         else
 534                 *cd = 0;
 535
 536         return 0;
 537 }
 538
 539 #ifdef CONFIG_FSL_ESDHC
 540 int board_mmc_init(bd_t *bis)
 541 {
 542         mxc_request_iomux(MX51_PIN_SD1_CMD,
 543                 IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
 544         mxc_request_iomux(MX51_PIN_SD1_CLK,
 545                 IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
 546         mxc_request_iomux(MX51_PIN_SD1_DATA0,
 547                 IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
 548         mxc_request_iomux(MX51_PIN_SD1_DATA1,
 549                 IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
 550         mxc_request_iomux(MX51_PIN_SD1_DATA2,
 551                 IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
 552         mxc_request_iomux(MX51_PIN_SD1_DATA3,
 553                 IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
 554         mxc_iomux_set_pad(MX51_PIN_SD1_CMD,
 555                 PAD_CTL_DRV_MAX | PAD_CTL_DRV_VOT_HIGH |
 556                 PAD_CTL_HYS_ENABLE | PAD_CTL_47K_PU |
 557                 PAD_CTL_PUE_PULL |
 558                 PAD_CTL_PKE_ENABLE | PAD_CTL_SRE_FAST);
 559         mxc_iomux_set_pad(MX51_PIN_SD1_CLK,
 560                 PAD_CTL_DRV_MAX | PAD_CTL_DRV_VOT_HIGH |
 561                 PAD_CTL_HYS_NONE | PAD_CTL_47K_PU |
 562                 PAD_CTL_PUE_PULL |
 563                 PAD_CTL_PKE_ENABLE | PAD_CTL_SRE_FAST);
 564         mxc_iomux_set_pad(MX51_PIN_SD1_DATA0,
 565                 PAD_CTL_DRV_MAX | PAD_CTL_DRV_VOT_HIGH |
 566                 PAD_CTL_HYS_ENABLE | PAD_CTL_47K_PU |
 567                 PAD_CTL_PUE_PULL |
 568                 PAD_CTL_PKE_ENABLE | PAD_CTL_SRE_FAST);
 569         mxc_iomux_set_pad(MX51_PIN_SD1_DATA1,
 570                 PAD_CTL_DRV_MAX | PAD_CTL_DRV_VOT_HIGH |
 571                 PAD_CTL_HYS_ENABLE | PAD_CTL_47K_PU |
 572                 PAD_CTL_PUE_PULL |
 573                 PAD_CTL_PKE_ENABLE | PAD_CTL_SRE_FAST);
 574         mxc_iomux_set_pad(MX51_PIN_SD1_DATA2,
 575                 PAD_CTL_DRV_MAX | PAD_CTL_DRV_VOT_HIGH |
 576                 PAD_CTL_HYS_ENABLE | PAD_CTL_47K_PU |
 577                 PAD_CTL_PUE_PULL |
 578                 PAD_CTL_PKE_ENABLE | PAD_CTL_SRE_FAST);
 579         mxc_iomux_set_pad(MX51_PIN_SD1_DATA3,
 580                 PAD_CTL_DRV_MAX | PAD_CTL_DRV_VOT_HIGH |
 581                 PAD_CTL_HYS_ENABLE | PAD_CTL_100K_PD |
 582                 PAD_CTL_PUE_PULL |
 583                 PAD_CTL_PKE_ENABLE | PAD_CTL_SRE_FAST);
 584         mxc_request_iomux(MX51_PIN_GPIO1_0,
 585                 IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
 586         mxc_iomux_set_pad(MX51_PIN_GPIO1_0,
 587                 PAD_CTL_HYS_ENABLE);
 588         mxc_request_iomux(MX51_PIN_GPIO1_1,
 589                 IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
 590         mxc_iomux_set_pad(MX51_PIN_GPIO1_1,
 591                 PAD_CTL_HYS_ENABLE);
 592
 593         return fsl_esdhc_initialize(bis, &esdhc_cfg[0]);
 594 }
 595 #endif
 596
 597 void lcd_enable(void)
 598 {
 599         int ret;
 600
 601         mxc_request_iomux(MX51_PIN_DI1_PIN2, IOMUX_CONFIG_ALT0);
 602         mxc_request_iomux(MX51_PIN_DI1_PIN3, IOMUX_CONFIG_ALT0);
 603
 604         gpio_set_value(2, 1);
 605         mxc_request_iomux(MX51_PIN_GPIO1_2, IOMUX_CONFIG_ALT0);
 606
 607         ret = mx5_fb_init(&nec_nl6448bc26_09c, 0, IPU_PIX_FMT_RGB666, 16);
 608         if (ret)
 609                 puts("LCD cannot be configured\n");
 610 }
 611
 612 int board_early_init_f(void)
 613 {
 614
 615
 616         init_drive_strength();
 617
 618         /* Setup debug led */
 619         gpio_direction_output(6, 0);
 620         mxc_request_iomux(MX51_PIN_GPIO1_6, IOMUX_CONFIG_ALT0);
 621         mxc_iomux_set_pad(MX51_PIN_GPIO1_6, PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST);
 622
 623         /* wait a little while to give the pll time to settle */
 624         sdelay(100000);
 625
 626         setup_weim();
 627         setup_uart();
 628         setup_fec();
 629         setup_gpios();
 630
 631         spi_io_init();
 632
 633         return 0;
 634 }
 635
 636 static void backlight(int on)
 637 {
 638         if (on) {
 639                 gpio_set_value(65, 1);
 640                 udelay(10000);
 641                 gpio_set_value(68, 1);
 642         } else {
 643                 gpio_set_value(65, 0);
 644                 gpio_set_value(68, 0);
 645         }
 646 }
 647
 648 int board_init(void)
 649 {
 650         /* address of boot parameters */
 651         gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
 652
 653         lcd_enable();
 654
 655         backlight(1);
 656
 657         return 0;
 658 }
 659
 660 int board_late_init(void)
 661 {
 662         power_init_mx51();
 663
 664         reset_peripherals(1);
 665         udelay(2000);
 666         reset_peripherals(0);
 667         udelay(2000);
 668
 669         /* Early revisions require a second reset */
 670 #ifdef CONFIG_VISION2_HW_1_0
 671         reset_peripherals(1);
 672         udelay(2000);
 673         reset_peripherals(0);
 674         udelay(2000);
 675 #endif
 676
 677         setenv("stdout", "serial");
 678
 679         return 0;
 680 }
 681
 682 int checkboard(void)
 683 {
 684         puts("Board: TTControl Vision II CPU V\n");
 685
 686         return 0;
 687 }
 688
 689 int do_vision_lcd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
 690 {
 691         int on;
 692
 693         if (argc < 2)
 694                 return cmd_usage(cmdtp);
 695
 696         on = (strcmp(argv[1], "on") == 0);
 697         backlight(on);
 698
 699         return 0;
 700 }
 701
 702 U_BOOT_CMD(
 703         lcdbl, CONFIG_SYS_MAXARGS, 1, do_vision_lcd,
 704         "Vision2 Backlight",
 705         "lcdbl [on|off]\n"
 706 );