board/socrates/socrates.c

   1 /*
   2  * (C) Copyright 2008
   3  * Sergei Poselenov, Emcraft Systems, sposelenov@emcraft.com.
   4  *
   5  * Copyright 2004 Freescale Semiconductor.
   6  * (C) Copyright 2002,2003, Motorola Inc.
   7  * Xianghua Xiao, (X.Xiao@motorola.com)
   8  *
   9  * (C) Copyright 2002 Scott McNutt <smcnutt@artesyncp.com>
  10  *
  11  * SPDX-License-Identifier:     GPL-2.0+
  12  */
  13
  14 #include <common.h>
  15 #include <pci.h>
  16 #include <asm/processor.h>
  17 #include <asm/immap_85xx.h>
  18 #include <ioports.h>
  19 #include <flash.h>
  20 #include <libfdt.h>
  21 #include <fdt_support.h>
  22 #include <asm/io.h>
  23 #include <i2c.h>
  24 #include <mb862xx.h>
  25 #include <video_fb.h>
  26 #include "upm_table.h"
  27
  28 DECLARE_GLOBAL_DATA_PTR;
  29
  30 extern flash_info_t flash_info[];       /* FLASH chips info */
  31 extern GraphicDevice mb862xx;
  32
  33 void local_bus_init (void);
  34 ulong flash_get_size (ulong base, int banknum);
  35
  36 int checkboard (void)
  37 {
  38         volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
  39         char buf[64];
  40         int f;
  41         int i = env_get_f("serial#", buf, sizeof(buf));
  42 #ifdef CONFIG_PCI
  43         char *src;
  44 #endif
  45
  46         puts("Board: Socrates");
  47         if (i > 0) {
  48                 puts(", serial# ");
  49                 puts(buf);
  50         }
  51         putc('\n');
  52
  53 #ifdef CONFIG_PCI
  54         /* Check the PCI_clk sel bit */
  55         if (in_be32(&gur->porpllsr) & (1<<15)) {
  56                 src = "SYSCLK";
  57                 f = CONFIG_SYS_CLK_FREQ;
  58         } else {
  59                 src = "PCI_CLK";
  60                 f = CONFIG_PCI_CLK_FREQ;
  61         }
  62         printf ("PCI1:  32 bit, %d MHz (%s)\n", f/1000000, src);
  63 #else
  64         printf ("PCI1:  disabled\n");
  65 #endif
  66
  67         /*
  68          * Initialize local bus.
  69          */
  70         local_bus_init ();
  71         return 0;
  72 }
  73
  74 int misc_init_r (void)
  75 {
  76         /*
  77          * Adjust flash start and offset to detected values
  78          */
  79         gd->bd->bi_flashstart = 0 - gd->bd->bi_flashsize;
  80         gd->bd->bi_flashoffset = 0;
  81
  82         /*
  83          * Check if boot FLASH isn't max size
  84          */
  85         if (gd->bd->bi_flashsize < (0 - CONFIG_SYS_FLASH0)) {
  86                 set_lbc_or(0, gd->bd->bi_flashstart |
  87                            (CONFIG_SYS_OR0_PRELIM & 0x00007fff));
  88                 set_lbc_br(0, gd->bd->bi_flashstart |
  89                            (CONFIG_SYS_BR0_PRELIM & 0x00007fff));
  90
  91                 /*
  92                  * Re-check to get correct base address
  93                  */
  94                 flash_get_size(gd->bd->bi_flashstart, CONFIG_SYS_MAX_FLASH_BANKS - 1);
  95         }
  96
  97         /*
  98          * Check if only one FLASH bank is available
  99          */
 100         if (gd->bd->bi_flashsize != CONFIG_SYS_MAX_FLASH_BANKS * (0 - CONFIG_SYS_FLASH0)) {
 101                 set_lbc_or(1, 0);
 102                 set_lbc_br(1, 0);
 103
 104                 /*
 105                  * Re-do flash protection upon new addresses
 106                  */
 107                 flash_protect (FLAG_PROTECT_CLEAR,
 108                                gd->bd->bi_flashstart, 0xffffffff,
 109                                &flash_info[CONFIG_SYS_MAX_FLASH_BANKS - 1]);
 110
 111                 /* Monitor protection ON by default */
 112                 flash_protect (FLAG_PROTECT_SET,
 113                                CONFIG_SYS_MONITOR_BASE, CONFIG_SYS_MONITOR_BASE + monitor_flash_len - 1,
 114                                &flash_info[CONFIG_SYS_MAX_FLASH_BANKS - 1]);
 115
 116                 /* Environment protection ON by default */
 117                 flash_protect (FLAG_PROTECT_SET,
 118                                CONFIG_ENV_ADDR,
 119                                CONFIG_ENV_ADDR + CONFIG_ENV_SECT_SIZE - 1,
 120                                &flash_info[CONFIG_SYS_MAX_FLASH_BANKS - 1]);
 121
 122                 /* Redundant environment protection ON by default */
 123                 flash_protect (FLAG_PROTECT_SET,
 124                                CONFIG_ENV_ADDR_REDUND,
 125                                CONFIG_ENV_ADDR_REDUND + CONFIG_ENV_SECT_SIZE - 1,
 126                                &flash_info[CONFIG_SYS_MAX_FLASH_BANKS - 1]);
 127         }
 128
 129         return 0;
 130 }
 131
 132 /*
 133  * Initialize Local Bus
 134  */
 135 void local_bus_init (void)
 136 {
 137         volatile fsl_lbc_t *lbc = LBC_BASE_ADDR;
 138         volatile ccsr_local_ecm_t *ecm = (void *)(CONFIG_SYS_MPC85xx_ECM_ADDR);
 139         sys_info_t sysinfo;
 140         uint clkdiv;
 141         uint lbc_mhz;
 142         uint lcrr = CONFIG_SYS_LBC_LCRR;
 143
 144         get_sys_info (&sysinfo);
 145         clkdiv = lbc->lcrr & LCRR_CLKDIV;
 146         lbc_mhz = sysinfo.freq_systembus / 1000000 / clkdiv;
 147
 148         /* Disable PLL bypass for Local Bus Clock >= 66 MHz */
 149         if (lbc_mhz >= 66)
 150                 lcrr &= ~LCRR_DBYP;     /* DLL Enabled */
 151         else
 152                 lcrr |= LCRR_DBYP;      /* DLL Bypass */
 153
 154         out_be32 (&lbc->lcrr, lcrr);
 155         asm ("sync;isync;msync");
 156
 157         out_be32 (&lbc->ltesr, 0xffffffff);     /* Clear LBC error interrupts */
 158         out_be32 (&lbc->lteir, 0xffffffff);     /* Enable LBC error interrupts */
 159         out_be32 (&ecm->eedr, 0xffffffff);      /* Clear ecm errors */
 160         out_be32 (&ecm->eeer, 0xffffffff);      /* Enable ecm errors */
 161
 162         /* Init UPMA for FPGA access */
 163         out_be32 (&lbc->mamr, 0x44440); /* Use a customer-supplied value */
 164         upmconfig (UPMA, (uint *)UPMTableA, sizeof(UPMTableA)/sizeof(int));
 165
 166         /* Init UPMB for Lime controller access */
 167         out_be32 (&lbc->mbmr, 0x444440); /* Use a customer-supplied value */
 168         upmconfig (UPMB, (uint *)UPMTableB, sizeof(UPMTableB)/sizeof(int));
 169 }
 170
 171 #if defined(CONFIG_PCI)
 172 /*
 173  * Initialize PCI Devices, report devices found.
 174  */
 175
 176 #ifndef CONFIG_PCI_PNP
 177 static struct pci_config_table pci_mpc85xxads_config_table[] = {
 178         {PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
 179          PCI_IDSEL_NUMBER, PCI_ANY_ID,
 180          pci_cfgfunc_config_device, {PCI_ENET0_IOADDR,
 181                                      PCI_ENET0_MEMADDR,
 182                                      PCI_COMMAND_MEMORY |
 183                                      PCI_COMMAND_MASTER}},
 184         {}
 185 };
 186 #endif
 187
 188
 189 static struct pci_controller hose = {
 190 #ifndef CONFIG_PCI_PNP
 191         config_table:pci_mpc85xxads_config_table,
 192 #endif
 193 };
 194
 195 #endif /* CONFIG_PCI */
 196
 197
 198 void pci_init_board (void)
 199 {
 200 #ifdef CONFIG_PCI
 201         pci_mpc85xx_init (&hose);
 202 #endif /* CONFIG_PCI */
 203 }
 204
 205 #ifdef CONFIG_BOARD_EARLY_INIT_R
 206 int board_early_init_r (void)
 207 {
 208         volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
 209
 210         /* set and reset the GPIO pin 2 which will reset the W83782G chip */
 211         out_8((unsigned char*)&gur->gpoutdr, 0x3F );
 212         out_be32((unsigned int*)&gur->gpiocr, 0x200 );  /* enable GPOut */
 213         udelay(200);
 214         out_8( (unsigned char*)&gur->gpoutdr, 0x1F );
 215
 216         return (0);
 217 }
 218 #endif /* CONFIG_BOARD_EARLY_INIT_R */
 219
 220 #ifdef CONFIG_OF_BOARD_SETUP
 221 int ft_board_setup(void *blob, bd_t *bd)
 222 {
 223         u32 val[12];
 224         int rc, i = 0;
 225
 226         ft_cpu_setup(blob, bd);
 227
 228         /* Fixup NOR FLASH mapping */
 229         val[i++] = 0;                           /* chip select number */
 230         val[i++] = 0;                           /* always 0 */
 231         val[i++] = gd->bd->bi_flashstart;
 232         val[i++] = gd->bd->bi_flashsize;
 233
 234         if (mb862xx.frameAdrs == CONFIG_SYS_LIME_BASE) {
 235                 /* Fixup LIME mapping */
 236                 val[i++] = 2;                   /* chip select number */
 237                 val[i++] = 0;                   /* always 0 */
 238                 val[i++] = CONFIG_SYS_LIME_BASE;
 239                 val[i++] = CONFIG_SYS_LIME_SIZE;
 240         }
 241
 242         /* Fixup FPGA mapping */
 243         val[i++] = 3;                           /* chip select number */
 244         val[i++] = 0;                           /* always 0 */
 245         val[i++] = CONFIG_SYS_FPGA_BASE;
 246         val[i++] = CONFIG_SYS_FPGA_SIZE;
 247
 248         rc = fdt_find_and_setprop(blob, "/localbus", "ranges",
 249                                   val, i * sizeof(u32), 1);
 250         if (rc)
 251                 printf("Unable to update localbus ranges, err=%s\n",
 252                        fdt_strerror(rc));
 253
 254         return 0;
 255 }
 256 #endif /* CONFIG_OF_BOARD_SETUP */
 257
 258 #define DEFAULT_BRIGHTNESS      25
 259 #define BACKLIGHT_ENABLE        (1 << 31)
 260
 261 static const gdc_regs init_regs [] =
 262 {
 263         {0x0100, 0x00010f00},
 264         {0x0020, 0x801901df},
 265         {0x0024, 0x00000000},
 266         {0x0028, 0x00000000},
 267         {0x002c, 0x00000000},
 268         {0x0110, 0x00000000},
 269         {0x0114, 0x00000000},
 270         {0x0118, 0x01df0320},
 271         {0x0004, 0x041f0000},
 272         {0x0008, 0x031f031f},
 273         {0x000c, 0x017f0349},
 274         {0x0010, 0x020c0000},
 275         {0x0014, 0x01df01e9},
 276         {0x0018, 0x00000000},
 277         {0x001c, 0x01e00320},
 278         {0x0100, 0x80010f00},
 279         {0x0, 0x0}
 280 };
 281
 282 const gdc_regs *board_get_regs (void)
 283 {
 284         return init_regs;
 285 }
 286
 287 int lime_probe(void)
 288 {
 289         uint cfg_br2;
 290         uint cfg_or2;
 291         int type;
 292
 293         cfg_br2 = get_lbc_br(2);
 294         cfg_or2 = get_lbc_or(2);
 295
 296         /* Configure GPCM for CS2 */
 297         set_lbc_br(2, 0);
 298         set_lbc_or(2, 0xfc000410);
 299         set_lbc_br(2, (CONFIG_SYS_LIME_BASE) | 0x00001901);
 300
 301         /* Get controller type */
 302         type = mb862xx_probe(CONFIG_SYS_LIME_BASE);
 303
 304         /* Restore previous CS2 configuration */
 305         set_lbc_br(2, 0);
 306         set_lbc_or(2, cfg_or2);
 307         set_lbc_br(2, cfg_br2);
 308
 309         return (type == MB862XX_TYPE_LIME) ? 1 : 0;
 310 }
 311
 312 /* Returns Lime base address */
 313 unsigned int board_video_init (void)
 314 {
 315         if (!lime_probe())
 316                 return 0;
 317
 318         mb862xx.winSizeX = 800;
 319         mb862xx.winSizeY = 480;
 320         mb862xx.gdfIndex = GDF_15BIT_555RGB;
 321         mb862xx.gdfBytesPP = 2;
 322
 323         return CONFIG_SYS_LIME_BASE;
 324 }
 325
 326 #define W83782D_REG_CFG         0x40
 327 #define W83782D_REG_BANK_SEL    0x4e
 328 #define W83782D_REG_ADCCLK      0x4b
 329 #define W83782D_REG_BEEP_CTRL   0x4d
 330 #define W83782D_REG_BEEP_CTRL2  0x57
 331 #define W83782D_REG_PWMOUT1     0x5b
 332 #define W83782D_REG_VBAT        0x5d
 333
 334 static int w83782d_hwmon_init(void)
 335 {
 336         u8 buf;
 337
 338         if (i2c_read(CONFIG_SYS_I2C_W83782G_ADDR, W83782D_REG_CFG, 1, &buf, 1))
 339                 return -1;
 340
 341         i2c_reg_write(CONFIG_SYS_I2C_W83782G_ADDR, W83782D_REG_CFG, 0x80);
 342         i2c_reg_write(CONFIG_SYS_I2C_W83782G_ADDR, W83782D_REG_BANK_SEL, 0);
 343         i2c_reg_write(CONFIG_SYS_I2C_W83782G_ADDR, W83782D_REG_ADCCLK, 0x40);
 344
 345         buf = i2c_reg_read(CONFIG_SYS_I2C_W83782G_ADDR, W83782D_REG_BEEP_CTRL);
 346         i2c_reg_write(CONFIG_SYS_I2C_W83782G_ADDR, W83782D_REG_BEEP_CTRL,
 347                       buf | 0x80);
 348         i2c_reg_write(CONFIG_SYS_I2C_W83782G_ADDR, W83782D_REG_BEEP_CTRL2, 0);
 349         i2c_reg_write(CONFIG_SYS_I2C_W83782G_ADDR, W83782D_REG_PWMOUT1, 0x47);
 350         i2c_reg_write(CONFIG_SYS_I2C_W83782G_ADDR, W83782D_REG_VBAT, 0x01);
 351
 352         buf = i2c_reg_read(CONFIG_SYS_I2C_W83782G_ADDR, W83782D_REG_CFG);
 353         i2c_reg_write(CONFIG_SYS_I2C_W83782G_ADDR, W83782D_REG_CFG,
 354                       (buf & 0xf4) | 0x01);
 355         return 0;
 356 }
 357
 358 static void board_backlight_brightness(int br)
 359 {
 360         u32 reg;
 361         u8 buf;
 362         u8 old_buf;
 363
 364         /* Select bank 0 */
 365         if (i2c_read(CONFIG_SYS_I2C_W83782G_ADDR, 0x4e, 1, &old_buf, 1))
 366                 goto err;
 367         else
 368                 buf = old_buf & 0xf8;
 369
 370         if (i2c_write(CONFIG_SYS_I2C_W83782G_ADDR, 0x4e, 1, &buf, 1))
 371                 goto err;
 372
 373         if (br > 0) {
 374                 /* PWMOUT1 duty cycle ctrl */
 375                 buf = 255 / (100 / br);
 376                 if (i2c_write(CONFIG_SYS_I2C_W83782G_ADDR, 0x5b, 1, &buf, 1))
 377                         goto err;
 378
 379                 /* LEDs on */
 380                 reg = in_be32((void *)(CONFIG_SYS_FPGA_BASE + 0x0c));
 381                 if (!(reg & BACKLIGHT_ENABLE))
 382                         out_be32((void *)(CONFIG_SYS_FPGA_BASE + 0x0c),
 383                                  reg | BACKLIGHT_ENABLE);
 384         } else {
 385                 buf = 0;
 386                 if (i2c_write(CONFIG_SYS_I2C_W83782G_ADDR, 0x5b, 1, &buf, 1))
 387                         goto err;
 388
 389                 /* LEDs off */
 390                 reg = in_be32((void *)(CONFIG_SYS_FPGA_BASE + 0x0c));
 391                 reg &= ~BACKLIGHT_ENABLE;
 392                 out_be32((void *)(CONFIG_SYS_FPGA_BASE + 0x0c), reg);
 393         }
 394         /* Restore previous bank setting */
 395         if (i2c_write(CONFIG_SYS_I2C_W83782G_ADDR, 0x4e, 1, &old_buf, 1))
 396                 goto err;
 397
 398         return;
 399 err:
 400         printf("W83782G I2C access failed\n");
 401 }
 402
 403 void board_backlight_switch (int flag)
 404 {
 405         char * param;
 406         int rc;
 407
 408         if (w83782d_hwmon_init())
 409                 printf ("hwmon IC init failed\n");
 410
 411         if (flag) {
 412                 param = env_get("brightness");
 413                 rc = param ? simple_strtol(param, NULL, 10) : -1;
 414                 if (rc < 0)
 415                         rc = DEFAULT_BRIGHTNESS;
 416         } else {
 417                 rc = 0;
 418         }
 419         board_backlight_brightness(rc);
 420 }
 421
 422 #if defined(CONFIG_CONSOLE_EXTRA_INFO)
 423 /*
 424  * Return text to be printed besides the logo.
 425  */
 426 void video_get_info_str (int line_number, char *info)
 427 {
 428         if (line_number == 1) {
 429                 strcpy (info, " Board: Socrates");
 430         } else {
 431                 info [0] = '\0';
 432         }
 433 }
 434 #endif