board/omap2420h4/omap2420h4.c

   1 /*
   2  * (C) Copyright 2004
   3  * Texas Instruments, <www.ti.com>
   4  * Richard Woodruff <r-woodruff2@ti.com>
   5  *
   6  * See file CREDITS for list of people who contributed to this
   7  * project.
   8  *
   9  * This program is free software; you can redistribute it and/or
  10  * modify it under the terms of the GNU General Public License as
  11  * published by the Free Software Foundation; either version 2 of
  12  * the License, or (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  22  * MA 02111-1307 USA
  23  */
  24 #include <common.h>
  25 #include <asm/arch/omap2420.h>
  26 #include <asm/io.h>
  27 #include <asm/arch/bits.h>
  28 #include <asm/arch/mux.h>
  29 #include <asm/arch/sys_proto.h>
  30 #include <asm/arch/sys_info.h>
  31 #include <asm/arch/mem.h>
  32 #include <i2c.h>
  33 #include <asm/mach-types.h>
  34 #if defined(CONFIG_CMD_NAND)
  35 #include <linux/mtd/nand_legacy.h>
  36 extern struct nand_chip nand_dev_desc[CONFIG_SYS_MAX_NAND_DEVICE];
  37 #endif
  38
  39 DECLARE_GLOBAL_DATA_PTR;
  40
  41 void wait_for_command_complete(unsigned int wd_base);
  42
  43 /*******************************************************
  44  * Routine: delay
  45  * Description: spinning delay to use before udelay works
  46  ******************************************************/
  47 static inline void delay (unsigned long loops)
  48 {
  49         __asm__ volatile ("1:\n" "subs %0, %1, #1\n"
  50                 "bne 1b":"=r" (loops):"0" (loops));
  51 }
  52
  53 /*****************************************
  54  * Routine: board_init
  55  * Description: Early hardware init.
  56  *****************************************/
  57 int board_init (void)
  58 {
  59         gpmc_init(); /* in SRAM or SDRM, finish GPMC */
  60
  61         gd->bd->bi_arch_number = MACH_TYPE_OMAP_H4;             /* board id for linux */
  62         gd->bd->bi_boot_params = (OMAP2420_SDRC_CS0+0x100);     /* adress of boot parameters */
  63
  64         return 0;
  65 }
  66
  67 /**********************************************************
  68  * Routine: try_unlock_sram()
  69  * Description: If chip is GP type, unlock the SRAM for
  70  *  general use.
  71  ***********************************************************/
  72 void try_unlock_sram(void)
  73 {
  74         /* if GP device unlock device SRAM for general use */
  75         if (get_device_type() == GP_DEVICE) {
  76                 __raw_writel(0xFF, A_REQINFOPERM0);
  77                 __raw_writel(0xCFDE, A_READPERM0);
  78                 __raw_writel(0xCFDE, A_WRITEPERM0);
  79         }
  80 }
  81
  82 /**********************************************************
  83  * Routine: s_init
  84  * Description: Does early system init of muxing and clocks.
  85  * - Called path is with sram stack.
  86  **********************************************************/
  87 void s_init(void)
  88 {
  89         int in_sdram = running_in_sdram();
  90
  91         watchdog_init();
  92         set_muxconf_regs();
  93         delay(100);
  94         try_unlock_sram();
  95
  96         if(!in_sdram)
  97                 prcm_init();
  98
  99         peripheral_enable();
 100         icache_enable();
 101         if (!in_sdram)
 102                 sdrc_init();
 103 }
 104
 105 /*******************************************************
 106  * Routine: misc_init_r
 107  * Description: Init ethernet (done here so udelay works)
 108  ********************************************************/
 109 int misc_init_r (void)
 110 {
 111         ether_init(); /* better done here so timers are init'ed */
 112         return(0);
 113 }
 114
 115 /****************************************
 116  * Routine: watchdog_init
 117  * Description: Shut down watch dogs
 118  *****************************************/
 119 void watchdog_init(void)
 120 {
 121         /* There are 4 watch dogs.  1 secure, and 3 general purpose.
 122         * The ROM takes care of the secure one. Of the 3 GP ones,
 123         * 1 can reset us directly, the other 2 only generate MPU interrupts.
 124         */
 125         __raw_writel(WD_UNLOCK1 ,WD2_BASE+WSPR);
 126         wait_for_command_complete(WD2_BASE);
 127         __raw_writel(WD_UNLOCK2 ,WD2_BASE+WSPR);
 128
 129 #if MPU_WD_CLOCKED /* value 0x10 stick on aptix, BIT4 polarity seems oppsite*/
 130         __raw_writel(WD_UNLOCK1 ,WD3_BASE+WSPR);
 131         wait_for_command_complete(WD3_BASE);
 132         __raw_writel(WD_UNLOCK2 ,WD3_BASE+WSPR);
 133
 134         __raw_writel(WD_UNLOCK1 ,WD4_BASE+WSPR);
 135         wait_for_command_complete(WD4_BASE);
 136         __raw_writel(WD_UNLOCK2 ,WD4_BASE+WSPR);
 137 #endif
 138 }
 139
 140 /******************************************************
 141  * Routine: wait_for_command_complete
 142  * Description: Wait for posting to finish on watchdog
 143  ******************************************************/
 144 void wait_for_command_complete(unsigned int wd_base)
 145 {
 146         int pending = 1;
 147         do {
 148                 pending = __raw_readl(wd_base+WWPS);
 149         } while (pending);
 150 }
 151
 152 /*******************************************************************
 153  * Routine:ether_init
 154  * Description: take the Ethernet controller out of reset and wait
 155  *                 for the EEPROM load to complete.
 156  ******************************************************************/
 157 void ether_init (void)
 158 {
 159 #ifdef CONFIG_DRIVER_LAN91C96
 160         int cnt = 20;
 161
 162         __raw_writeb(0x3,OMAP2420_CTRL_BASE+0x10a); /*protect->gpio95 */
 163
 164         __raw_writew(0x0, LAN_RESET_REGISTER);
 165         do {
 166                 __raw_writew(0x1, LAN_RESET_REGISTER);
 167                 udelay (100);
 168                 if (cnt == 0)
 169                         goto h4reset_err_out;
 170                 --cnt;
 171         } while (__raw_readw(LAN_RESET_REGISTER) != 0x1);
 172
 173         cnt = 20;
 174
 175         do {
 176                 __raw_writew(0x0, LAN_RESET_REGISTER);
 177                 udelay (100);
 178                 if (cnt == 0)
 179                         goto h4reset_err_out;
 180                 --cnt;
 181         } while (__raw_readw(LAN_RESET_REGISTER) != 0x0000);
 182         udelay (1000);
 183
 184         *((volatile unsigned char *) ETH_CONTROL_REG) &= ~0x01;
 185         udelay (1000);
 186
 187         h4reset_err_out:
 188         return;
 189 #endif
 190 }
 191
 192 /**********************************************
 193  * Routine: dram_init
 194  * Description: sets uboots idea of sdram size
 195  **********************************************/
 196 int dram_init (void)
 197 {
 198         unsigned int size0=0,size1=0;
 199         u32 mtype, btype, rev, cpu;
 200         u8 chg_on = 0x5; /* enable charge of back up battery */
 201         u8 vmode_on = 0x8C;
 202         #define NOT_EARLY 0
 203
 204         i2c_init (CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE); /* need this a bit early */
 205
 206         btype = get_board_type();
 207         mtype = get_mem_type();
 208         rev = get_cpu_rev();
 209         cpu = get_cpu_type();
 210
 211         display_board_info(btype);
 212         if (btype == BOARD_H4_MENELAUS){
 213                 update_mux(btype,mtype); /* combo part on menelaus */
 214                 i2c_write(I2C_MENELAUS, 0x20, 1, &chg_on, 1); /*fix POR reset bug */
 215                 i2c_write(I2C_MENELAUS, 0x2, 1, &vmode_on, 1); /* VCORE change on VMODE */
 216         }
 217
 218         if ((mtype == DDR_COMBO) || (mtype == DDR_STACKED)) {
 219                 do_sdrc_init(SDRC_CS1_OSET, NOT_EARLY); /* init other chip select */
 220         }
 221         size0 = get_sdr_cs_size(SDRC_CS0_OSET);
 222         size1 = get_sdr_cs_size(SDRC_CS1_OSET);
 223
 224         gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
 225         gd->bd->bi_dram[0].size = size0;
 226         if(rev == CPU_2420_2422_ES1) /* ES1's 128MB remap granularity isn't worth doing */
 227                 gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
 228         else /* ES2 and above can remap at 32MB granularity */
 229                 gd->bd->bi_dram[1].start = PHYS_SDRAM_1+size0;
 230         gd->bd->bi_dram[1].size = size1;
 231
 232         return 0;
 233 }
 234
 235 /**********************************************************
 236  * Routine: set_muxconf_regs
 237  * Description: Setting up the configuration Mux registers
 238  *              specific to the hardware
 239  *********************************************************/
 240 void set_muxconf_regs (void)
 241 {
 242         muxSetupSDRC();
 243         muxSetupGPMC();
 244         muxSetupUsb0();
 245         muxSetupUart3();
 246         muxSetupI2C1();
 247         muxSetupUART1();
 248         muxSetupLCD();
 249         muxSetupCamera();
 250         muxSetupMMCSD();
 251         muxSetupTouchScreen();
 252         muxSetupHDQ();
 253 }
 254
 255 /*****************************************************************
 256  * Routine: peripheral_enable
 257  * Description: Enable the clks & power for perifs (GPT2, UART1,...)
 258  ******************************************************************/
 259 void peripheral_enable(void)
 260 {
 261         unsigned int v, if_clks=0, func_clks=0;
 262
 263         /* Enable GP2 timer.*/
 264         if_clks |= BIT4;
 265         func_clks |= BIT4;
 266         v = __raw_readl(CM_CLKSEL2_CORE) | 0x4; /* Sys_clk input OMAP2420_GPT2 */
 267         __raw_writel(v, CM_CLKSEL2_CORE);
 268         __raw_writel(0x1, CM_CLKSEL_WKUP);
 269
 270 #ifdef CONFIG_SYS_NS16550
 271         /* Enable UART1 clock */
 272         func_clks |= BIT21;
 273         if_clks |= BIT21;
 274 #endif
 275         v = __raw_readl(CM_ICLKEN1_CORE) | if_clks;     /* Interface clocks on */
 276         __raw_writel(v,CM_ICLKEN1_CORE );
 277         v = __raw_readl(CM_FCLKEN1_CORE) | func_clks; /* Functional Clocks on */
 278         __raw_writel(v, CM_FCLKEN1_CORE);
 279         delay(1000);
 280
 281 #ifndef KERNEL_UPDATED
 282         {
 283 #define V1 0xffffffff
 284 #define V2 0x00000007
 285
 286                 __raw_writel(V1, CM_FCLKEN1_CORE);
 287                 __raw_writel(V2, CM_FCLKEN2_CORE);
 288                 __raw_writel(V1, CM_ICLKEN1_CORE);
 289                 __raw_writel(V1, CM_ICLKEN2_CORE);
 290         }
 291 #endif
 292 }
 293
 294 /****************************************
 295  * Routine: muxSetupUsb0   (ostboot)
 296  * Description: Setup usb muxing
 297  *****************************************/
 298 void muxSetupUsb0(void)
 299 {
 300         volatile uint8   *MuxConfigReg;
 301         volatile uint32  *otgCtrlReg;
 302
 303         MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_USB0_PUEN;
 304         *MuxConfigReg &= (uint8)(~0x1F);
 305
 306         MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_USB0_VP;
 307         *MuxConfigReg &= (uint8)(~0x1F);
 308
 309         MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_USB0_VM;
 310         *MuxConfigReg &= (uint8)(~0x1F);
 311
 312         MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_USB0_RCV;
 313         *MuxConfigReg &= (uint8)(~0x1F);
 314
 315         MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_USB0_TXEN;
 316         *MuxConfigReg &= (uint8)(~0x1F);
 317
 318         MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_USB0_SE0;
 319         *MuxConfigReg &= (uint8)(~0x1F);
 320
 321         MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_USB0_DAT;
 322         *MuxConfigReg &= (uint8)(~0x1F);
 323
 324         /* setup for USB VBus detection */
 325         otgCtrlReg = (volatile uint32 *)USB_OTG_CTRL;
 326         *otgCtrlReg |= 0x00040000; /* bit 18 */
 327 }
 328
 329 /****************************************
 330  * Routine: muxSetupUart3   (ostboot)
 331  * Description: Setup uart3 muxing
 332  *****************************************/
 333 void muxSetupUart3(void)
 334 {
 335         volatile uint8 *MuxConfigReg;
 336
 337         MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_UART3_TX_IRTX;
 338         *MuxConfigReg &= (uint8)(~0x1F);
 339
 340         MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_UART3_RX_IRRX;
 341         *MuxConfigReg &= (uint8)(~0x1F);
 342 }
 343
 344 /****************************************
 345  * Routine: muxSetupI2C1   (ostboot)
 346  * Description: Setup i2c muxing
 347  *****************************************/
 348 void muxSetupI2C1(void)
 349 {
 350         volatile unsigned char  *MuxConfigReg;
 351
 352         /* I2C1 Clock pin configuration, PIN = M19 */
 353         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_I2C1_SCL;
 354         *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 355
 356         /* I2C1 Data pin configuration, PIN = L15 */
 357         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_I2C1_SDA;
 358         *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 359
 360         /* Pull-up required on data line */
 361         /* external pull-up already present. */
 362         /* *MuxConfigReg |= 0x18 ;*/ /* Mode = 0, PullTypeSel=PU, PullUDEnable=Enabled */
 363 }
 364
 365 /****************************************
 366  * Routine: muxSetupUART1  (ostboot)
 367  * Description: Set up uart1 muxing
 368  *****************************************/
 369 void muxSetupUART1(void)
 370 {
 371         volatile unsigned char  *MuxConfigReg;
 372
 373         /* UART1_CTS pin configuration, PIN = D21 */
 374         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_UART1_CTS;
 375         *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 376
 377         /* UART1_RTS pin configuration, PIN = H21 */
 378         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_UART1_RTS;
 379         *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 380
 381         /* UART1_TX pin configuration, PIN = L20 */
 382         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_UART1_TX;
 383         *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 384
 385         /* UART1_RX pin configuration, PIN = T21 */
 386         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_UART1_RX;
 387         *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 388 }
 389
 390 /****************************************
 391  * Routine: muxSetupLCD   (ostboot)
 392  * Description: Setup lcd muxing
 393  *****************************************/
 394 void muxSetupLCD(void)
 395 {
 396         volatile unsigned char  *MuxConfigReg;
 397
 398         /* LCD_D0 pin configuration, PIN = Y7  */
 399         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D0;
 400         *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 401
 402         /* LCD_D1 pin configuration, PIN = P10 */
 403         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D1;
 404         *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 405
 406         /* LCD_D2 pin configuration, PIN = V8  */
 407         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D2;
 408         *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 409
 410         /* LCD_D3 pin configuration, PIN = Y8  */
 411         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D3;
 412         *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 413
 414         /* LCD_D4 pin configuration, PIN = W8  */
 415         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D4;
 416         *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 417
 418         /* LCD_D5 pin configuration, PIN = R10 */
 419         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D5;
 420         *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 421
 422         /* LCD_D6 pin configuration, PIN = Y9  */
 423         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D6;
 424         *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 425
 426         /* LCD_D7 pin configuration, PIN = V9  */
 427         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D7;
 428         *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 429
 430         /* LCD_D8 pin configuration, PIN = W9  */
 431         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D8;
 432         *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 433
 434         /* LCD_D9 pin configuration, PIN = P11 */
 435         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D9;
 436         *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 437
 438         /* LCD_D10 pin configuration, PIN = V10 */
 439         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D10;
 440         *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 441
 442         /* LCD_D11 pin configuration, PIN = Y10 */
 443         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D11;
 444         *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 445
 446         /* LCD_D12 pin configuration, PIN = W10 */
 447         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D12;
 448         *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 449
 450         /* LCD_D13 pin configuration, PIN = R11 */
 451         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D13;
 452         *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 453
 454         /* LCD_D14 pin configuration, PIN = V11 */
 455         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D14;
 456         *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 457
 458         /* LCD_D15 pin configuration, PIN = W11 */
 459         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D15;
 460         *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 461
 462         /* LCD_D16 pin configuration, PIN = P12 */
 463         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D16;
 464         *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 465
 466         /* LCD_D17 pin configuration, PIN = R12 */
 467         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_D17;
 468         *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 469
 470         /* LCD_PCLK pin configuration,   PIN = W6   */
 471         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_PCLK;
 472         *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 473
 474         /* LCD_VSYNC pin configuration,  PIN = V7  */
 475         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_VSYNC;
 476         *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 477
 478         /* LCD_HSYNC pin configuration,  PIN = Y6  */
 479         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_HSYNC;
 480         *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 481
 482         /* LCD_ACBIAS pin configuration, PIN = W7 */
 483         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_DSS_ACBIAS;
 484         *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 485 }
 486
 487 /****************************************
 488  * Routine: muxSetupCamera  (ostboot)
 489  * Description: Setup camera muxing
 490  *****************************************/
 491 void muxSetupCamera(void)
 492 {
 493         volatile unsigned char  *MuxConfigReg;
 494
 495         /* CAMERA_RSTZ  pin configuration, PIN = Y16 */
 496         /* CAM_RST is connected through the I2C IO expander.*/
 497         /* MuxConfigReg = (volatile unsigned char *), CONTROL_PADCONF_SYS_NRESWARM*/
 498         /* *MuxConfigReg = 0x00 ; / * Mode = 0, PUPD=Disabled   */
 499
 500         /* CAMERA_XCLK  pin configuration, PIN = U3 */
 501         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_CAM_XCLK;
 502         *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 503
 504         /* CAMERA_LCLK  pin configuration, PIN = V5 */
 505         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_CAM_LCLK;
 506         *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 507
 508         /* CAMERA_VSYNC pin configuration, PIN = U2 */
 509         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_CAM_VS,
 510                                    *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 511
 512         /* CAMERA_HSYNC pin configuration, PIN = T3 */
 513         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_CAM_HS,
 514                                    *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 515
 516         /* CAMERA_DAT0 pin configuration, PIN = T4 */
 517         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_CAM_D0,
 518                                    *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 519
 520         /* CAMERA_DAT1 pin configuration, PIN = V2 */
 521         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_CAM_D1,
 522                                    *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 523
 524         /* CAMERA_DAT2 pin configuration, PIN = V3 */
 525         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_CAM_D2,
 526                                    *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 527
 528         /* CAMERA_DAT3 pin configuration, PIN = U4 */
 529         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_CAM_D3,
 530                                    *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 531
 532         /* CAMERA_DAT4 pin configuration, PIN = W2 */
 533         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_CAM_D4,
 534                                    *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 535
 536         /* CAMERA_DAT5 pin configuration, PIN = V4 */
 537         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_CAM_D5,
 538                                    *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 539
 540         /* CAMERA_DAT6 pin configuration, PIN = W3 */
 541         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_CAM_D6,
 542                                    *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 543
 544         /* CAMERA_DAT7 pin configuration, PIN = Y2 */
 545         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_CAM_D7,
 546                                    *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 547
 548         /* CAMERA_DAT8 pin configuration, PIN = Y4 */
 549         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_CAM_D8,
 550                                    *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 551
 552         /* CAMERA_DAT9 pin configuration, PIN = V6 */
 553         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_CAM_D9,
 554                                    *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 555 }
 556
 557 /****************************************
 558  * Routine: muxSetupMMCSD (ostboot)
 559  * Description: set up MMC muxing
 560  *****************************************/
 561 void muxSetupMMCSD(void)
 562 {
 563         volatile unsigned char  *MuxConfigReg;
 564
 565         /* SDMMC_CLKI pin configuration,  PIN = H15 */
 566         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_MMC_CLKI,
 567                                    *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 568
 569         /* SDMMC_CLKO pin configuration,  PIN = G19 */
 570         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_MMC_CLKO,
 571                                    *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 572
 573         /* SDMMC_CMD pin configuration,   PIN = H18 */
 574         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_MMC_CMD,
 575                                    *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 576         /* External pull-ups are present. */
 577         /* *MuxConfigReg |= 0x18 ; #/ PullUDEnable=Enabled, PullTypeSel=PU */
 578
 579         /* SDMMC_DAT0 pin configuration,  PIN = F20 */
 580         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_MMC_DAT0,
 581                                    *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 582         /* External pull-ups are present. */
 583         /* *MuxConfigReg |= 0x18 ; #/ PullUDEnable=Enabled, PullTypeSel=PU */
 584
 585         /* SDMMC_DAT1 pin configuration,  PIN = H14 */
 586         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_MMC_DAT1,
 587                                    *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 588         /* External pull-ups are present. */
 589         /* *MuxConfigReg |= 0x18 ; #/ PullUDEnable=Enabled, PullTypeSel=PU */
 590
 591         /* SDMMC_DAT2 pin configuration,  PIN = E19 */
 592         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_MMC_DAT2,
 593                                    *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 594         /* External pull-ups are present. */
 595         /* *MuxConfigReg |= 0x18 ; #/ PullUDEnable=Enabled, PullTypeSel=PU */
 596
 597         /* SDMMC_DAT3 pin configuration,  PIN = D19 */
 598         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_MMC_DAT3,
 599                                    *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 600         /* External pull-ups are present. */
 601         /* *MuxConfigReg |= 0x18 ; #/ PullUDEnable=Enabled, PullTypeSel=PU */
 602
 603         /* SDMMC_DDIR0 pin configuration, PIN = F19 */
 604         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_MMC_DAT_DIR0,
 605                                    *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 606
 607         /* SDMMC_DDIR1 pin configuration, PIN = E20 */
 608         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_MMC_DAT_DIR1,
 609                                    *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 610
 611         /* SDMMC_DDIR2 pin configuration, PIN = F18 */
 612         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_MMC_DAT_DIR2,
 613                                    *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 614
 615         /* SDMMC_DDIR3 pin configuration, PIN = E18 */
 616         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_MMC_DAT_DIR3,
 617                                    *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 618
 619         /* SDMMC_CDIR pin configuration,  PIN = G18 */
 620         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_MMC_CMD_DIR,
 621                                    *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 622
 623         /* MMC_CD pin configuration,      PIN = B3  ---2420IP ONLY---*/
 624         /* MMC_CD for 2422IP=K1 */
 625         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_SDRC_A14,
 626                                    *MuxConfigReg = 0x03 ; /* Mode = 3, PUPD=Disabled */
 627
 628         /* MMC_WP pin configuration,      PIN = B4  */
 629         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_SDRC_A13,
 630                                    *MuxConfigReg = 0x03 ; /* Mode = 3, PUPD=Disabled */
 631 }
 632
 633 /******************************************
 634  * Routine: muxSetupTouchScreen (ostboot)
 635  * Description:  Set up touch screen muxing
 636  *******************************************/
 637 void muxSetupTouchScreen(void)
 638 {
 639         volatile unsigned char  *MuxConfigReg;
 640
 641         /* SPI1_CLK pin configuration,  PIN = U18 */
 642         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_SPI1_CLK,
 643                                    *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 644
 645         /* SPI1_MOSI pin configuration, PIN = V20 */
 646         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_SPI1_SIMO,
 647                                    *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 648
 649         /* SPI1_MISO pin configuration, PIN = T18 */
 650         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_SPI1_SOMI,
 651                                    *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 652
 653         /* SPI1_nCS0 pin configuration, PIN = U19 */
 654         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_SPI1_NCS0,
 655                                    *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 656
 657         /* PEN_IRQ pin configuration,   PIN = P20 */
 658         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_MCBSP1_FSR,
 659                                    *MuxConfigReg = 0x03 ; /* Mode = 3, PUPD=Disabled */
 660 }
 661
 662 /****************************************
 663  * Routine: muxSetupHDQ (ostboot)
 664  * Description: setup 1wire mux
 665  *****************************************/
 666 void muxSetupHDQ(void)
 667 {
 668         volatile unsigned char  *MuxConfigReg;
 669
 670         /* HDQ_SIO pin configuration,  PIN = N18 */
 671         MuxConfigReg = (volatile unsigned char *)CONTROL_PADCONF_HDQ_SIO,
 672                                    *MuxConfigReg = 0x00 ; /* Mode = 0, PUPD=Disabled */
 673 }
 674
 675 /***************************************************************
 676  * Routine: muxSetupGPMC (ostboot)
 677  * Description: Configures balls which cam up in protected mode
 678  ***************************************************************/
 679 void muxSetupGPMC(void)
 680 {
 681         volatile uint8 *MuxConfigReg;
 682         volatile unsigned int *MCR = (volatile unsigned int *)0x4800008C;
 683
 684         /* gpmc_io_dir */
 685         *MCR = 0x19000000;
 686
 687         /* NOR FLASH CS0 */
 688         /* signal - Gpmc_clk; pin - J4; offset - 0x0088; mode - 0; Byte-3       Pull/up - N/A */
 689         MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_GPMC_D2_BYTE3,
 690                                    *MuxConfigReg = 0x00 ;
 691
 692         /* signal - Gpmc_iodir; pin - n2; offset - 0x008C; mode - 1; Byte-3     Pull/up - N/A */
 693         MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_GPMC_NCS0_BYTE3,
 694                                    *MuxConfigReg = 0x01 ;
 695
 696         /* MPDB(Multi Port Debug Port) CS1 */
 697         /* signal - gpmc_ncs1; pin - N8; offset - 0x008C; mode - 0; Byte-1      Pull/up - N/A */
 698         MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_GPMC_NCS0_BYTE1,
 699                                    *MuxConfigReg = 0x00 ;
 700
 701         /* signal - Gpmc_ncs2; pin - E2; offset - 0x008C; mode - 0; Byte-2      Pull/up - N/A */
 702         MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_GPMC_NCS0_BYTE2,
 703                                    *MuxConfigReg = 0x00 ;
 704 }
 705
 706 /****************************************************************
 707  * Routine: muxSetupSDRC  (ostboot)
 708  * Description: Configures balls which come up in protected mode
 709  ****************************************************************/
 710 void muxSetupSDRC(void)
 711 {
 712         volatile uint8 *MuxConfigReg;
 713
 714         /* signal - sdrc_ncs1; pin - C12; offset - 0x00A0; mode - 0; Byte-1     Pull/up - N/A */
 715         MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_SDRC_NCS0_BYTE1,
 716                                    *MuxConfigReg = 0x00 ;
 717
 718         /* signal - sdrc_a12; pin - D11; offset - 0x0030; mode - 0; Byte-2      Pull/up - N/A */
 719         MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_SDRC_A14_BYTE2,
 720                                    *MuxConfigReg = 0x00 ;
 721
 722         /* signal - sdrc_cke1; pin - B13; offset - 0x00A0; mode - 0; Byte-3     Pull/up - N/A */
 723         MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_SDRC_NCS0_BYTE3,
 724                                    *MuxConfigReg = 0x00;
 725
 726         if (get_cpu_type() == CPU_2422) {
 727                 MuxConfigReg = (volatile uint8 *)CONTROL_PADCONF_SDRC_A14_BYTE0,
 728                                            *MuxConfigReg = 0x1b;
 729         }
 730 }
 731
 732 /*****************************************************************************
 733  * Routine: update_mux()
 734  * Description: Update balls which are different beween boards.  All should be
 735  *              updated to match functionaly.  However, I'm only updating ones
 736  *              which I'll be using for now.  When power comes into play they
 737  *              all need updating.
 738  *****************************************************************************/
 739 void update_mux(u32 btype,u32 mtype)
 740 {
 741         u32 cpu, base = OMAP2420_CTRL_BASE;
 742         cpu = get_cpu_type();
 743
 744         if (btype == BOARD_H4_MENELAUS) {
 745                 if (cpu == CPU_2420) {
 746                         /* PIN = B3,  GPIO.0->KBR5,      mode 3,  (pun?),-DO-*/
 747                         __raw_writeb(0x3, base+0x30);
 748                         /* PIN = B13, GPIO.38->KBC6,     mode 3,  (pun?)-DO-*/
 749                         __raw_writeb(0x3, base+0xa3);
 750                         /* PIN = F1, GPIO.25->HSUSBxx    mode 3,  (for external HS USB)*/
 751                         /* PIN = H1, GPIO.26->HSUSBxx    mode 3,  (for external HS USB)*/
 752                         /* PIN = K1, GPMC_ncs6           mode 0,  (on board nand access)*/
 753                         /* PIN = L2, GPMC_ncs67          mode 0,  (for external HS USB)*/
 754                         /* PIN = M1 (HSUSBOTG) */
 755                         /* PIN = P1, GPIO.35->MEN_POK    mode 3,  (menelaus powerok)-DO-*/
 756                         __raw_writeb(0x3, base+0x9d);
 757                         /* PIN = U32, (WLAN_CLKREQ) */
 758                         /* PIN = Y11, WLAN */
 759                         /* PIN = AA4, GPIO.15->KBC2,     mode 3,  -DO- */
 760                         __raw_writeb(0x3, base+0xe7);
 761                         /* PIN = AA8, mDOC */
 762                         /* PIN = AA10, BT */
 763                         /* PIN = AA13, WLAN */
 764                         /* PIN = M18 GPIO.96->MMC2_WP    mode 3   -DO- */
 765                         __raw_writeb(0x3, base+0x10e);
 766                         /* PIN = N19 GPIO.98->WLAN_INT   mode 3   -DO- */
 767                         __raw_writeb(0x3, base+0x110);
 768                         /* PIN = J15 HHUSB */
 769                         /* PIN = H19 HSUSB */
 770                         /* PIN = W13, P13, R13, W16 ... */
 771                         /* PIN = V12 GPIO.25->I2C_CAMEN  mode 3   -DO- */
 772                         __raw_writeb(0x3, base+0xde);
 773                         /* PIN = W19 sys_nirq->MENELAUS_INT mode 0 -DO- */
 774                         __raw_writeb(0x0, base+0x12c);
 775                         /* PIN = AA17->sys_clkreq        mode 0   -DO- */
 776                         __raw_writeb(0x0, base+0x136);
 777                 } else if (cpu == CPU_2422) {
 778                         /* PIN = B3,  GPIO.0->nc,        mode 3,  set above (pun?)*/
 779                         /* PIN = B13, GPIO.cke1->nc,     mode 0,  set above, (pun?)*/
 780                         /* PIN = F1, GPIO.25->HSUSBxx    mode 3,  (for external HS USB)*/
 781                         /* PIN = H1, GPIO.26->HSUSBxx    mode 3,  (for external HS USB)*/
 782                         /* PIN = K1, GPMC_ncs6           mode 0,  (on board nand access)*/
 783                         __raw_writeb(0x0, base+0x92);
 784                         /* PIN = L2, GPMC_ncs67          mode 0,  (for external HS USB)*/
 785                         /* PIN = M1 (HSUSBOTG) */
 786                         /* PIN = P1, GPIO.35->MEN_POK    mode 3,  (menelaus powerok)-DO-*/
 787                         __raw_writeb(0x3, base+0x10c);
 788                         /* PIN = U32, (WLAN_CLKREQ) */
 789                         /* PIN = AA4, GPIO.15->KBC2,     mode 3,  -DO- */
 790                         __raw_writeb(0x3, base+0x30);
 791                         /* PIN = AA8, mDOC */
 792                         /* PIN = AA10, BT */
 793                         /* PIN = AA12, WLAN */
 794                         /* PIN = M18 GPIO.96->MMC2_WP    mode 3   -DO- */
 795                         __raw_writeb(0x3, base+0x10e);
 796                         /* PIN = N19 GPIO.98->WLAN_INT   mode 3   -DO- */
 797                         __raw_writeb(0x3, base+0x110);
 798                         /* PIN = J15 HHUSB */
 799                         /* PIN = H19 HSUSB */
 800                         /* PIN = W13, P13, R13, W16 ... */
 801                         /* PIN = V12 GPIO.25->I2C_CAMEN  mode 3   -DO- */
 802                         __raw_writeb(0x3, base+0xde);
 803                         /* PIN = W19 sys_nirq->MENELAUS_INT mode 0 -DO- */
 804                         __raw_writeb(0x0, base+0x12c);
 805                         /* PIN = AA17->sys_clkreq        mode 0   -DO- */
 806                         __raw_writeb(0x0, base+0x136);
 807                 }
 808
 809         } else if (btype == BOARD_H4_SDP) {
 810                 if (cpu == CPU_2420) {
 811                         /* PIN = B3,  GPIO.0->nc         mode 3,  set above (pun?)*/
 812                         /* PIN = B13, GPIO.cke1->nc,     mode 0,  set above, (pun?)*/
 813                         /* Pin = Y11 VLNQ */
 814                         /* Pin = AA4 VLNQ */
 815                         /* Pin = AA6 VLNQ */
 816                         /* Pin = AA8 VLNQ */
 817                         /* Pin = AA10 VLNQ */
 818                         /* Pin = AA12 VLNQ */
 819                         /* PIN = M18 GPIO.96->KBR5       mode 3   -DO- */
 820                         __raw_writeb(0x3, base+0x10e);
 821                         /* PIN = N19 GPIO.98->KBC6       mode 3   -DO- */
 822                         __raw_writeb(0x3, base+0x110);
 823                         /* PIN = J15 MDOC_nDMAREQ */
 824                         /* PIN = H19 GPIO.100->KBC2      mode 3   -DO- */
 825                         __raw_writeb(0x3, base+0x114);
 826                         /* PIN = W13, V12, P13, R13, W19, W16 ... */
 827                         /* PIN = AA17 sys_clkreq->bt_clk_req  mode 0  */
 828                 } else if (cpu == CPU_2422) {
 829                         /* PIN = B3,  GPIO.0->MMC_CD,    mode 3,  set above */
 830                         /* PIN = B13, GPIO.38->wlan_int, mode 3,  (pun?)*/
 831                         /* Pin = Y11 VLNQ */
 832                         /* Pin = AA4 VLNQ */
 833                         /* Pin = AA6 VLNQ */
 834                         /* Pin = AA8 VLNQ */
 835                         /* Pin = AA10 VLNQ */
 836                         /* Pin = AA12 VLNQ */
 837                         /* PIN = M18 GPIO.96->KBR5       mode 3   -DO- */
 838                         __raw_writeb(0x3, base+0x10e);
 839                         /* PIN = N19 GPIO.98->KBC6       mode 3   -DO- */
 840                         __raw_writeb(0x3, base+0x110);
 841                         /* PIN = J15 MDOC_nDMAREQ */
 842                         /* PIN = H19 GPIO.100->KBC2      mode 3   -DO- */
 843                         __raw_writeb(0x3, base+0x114);
 844                         /* PIN = W13, V12, P13, R13, W19, W16 ... */
 845                         /* PIN = AA17 sys_clkreq->bt_clk_req  mode 0 */
 846                 }
 847         }
 848 }
 849
 850 #if defined(CONFIG_CMD_NAND)
 851 void nand_init(void)
 852 {
 853     extern flash_info_t flash_info[];
 854
 855     nand_probe(CONFIG_SYS_NAND_ADDR);
 856     if (nand_dev_desc[0].ChipID != NAND_ChipID_UNKNOWN) {
 857                 print_size(nand_dev_desc[0].totlen, "\n");
 858     }
 859
 860 #ifdef CONFIG_SYS_JFFS2_MEM_NAND
 861     flash_info[CONFIG_SYS_JFFS2_FIRST_BANK].flash_id = nand_dev_desc[0].id;
 862     flash_info[CONFIG_SYS_JFFS2_FIRST_BANK].size = 1024*1024*2;      /* only read kernel single meg partition */
 863         flash_info[CONFIG_SYS_JFFS2_FIRST_BANK].sector_count = 1024;   /* 1024 blocks in 16meg chip (use less for raw/copied partition) */
 864     flash_info[CONFIG_SYS_JFFS2_FIRST_BANK].start[0] = 0x80200000; /* ?, ram for now, open question, copy to RAM or adapt for NAND */
 865 #endif
 866 }
 867 #endif