board/freescale/mpc8641hpcn/mpc8641hpcn.c

   1 /*
   2  * Copyright 2006, 2007 Freescale Semiconductor.
   3  *
   4  * See file CREDITS for list of people who contributed to this
   5  * project.
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License as
   9  * published by the Free Software Foundation; either version 2 of
  10  * the License, or (at your option) any later version.
  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  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  20  * MA 02111-1307 USA
  21  */
  22
  23 #include <common.h>
  24 #include <pci.h>
  25 #include <asm/processor.h>
  26 #include <asm/immap_86xx.h>
  27 #include <asm/fsl_pci.h>
  28 #include <asm/fsl_ddr_sdram.h>
  29 #include <asm/io.h>
  30 #include <libfdt.h>
  31 #include <fdt_support.h>
  32 #include <netdev.h>
  33
  34 #include "../common/pixis.h"
  35
  36 phys_size_t fixed_sdram(void);
  37
  38 int board_early_init_f(void)
  39 {
  40         return 0;
  41 }
  42
  43 int checkboard(void)
  44 {
  45         u8 vboot;
  46         u8 *pixis_base = (u8 *)PIXIS_BASE;
  47
  48         printf ("Board: MPC8641HPCN, Sys ID: 0x%02x, "
  49                 "Sys Ver: 0x%02x, FPGA Ver: 0x%02x, ",
  50                 in_8(pixis_base + PIXIS_ID), in_8(pixis_base + PIXIS_VER),
  51                 in_8(pixis_base + PIXIS_PVER));
  52
  53         vboot = in_8(pixis_base + PIXIS_VBOOT);
  54         if (vboot & PIXIS_VBOOT_FMAP)
  55                 printf ("vBank: %d\n", ((vboot & PIXIS_VBOOT_FBANK) >> 6));
  56         else
  57                 puts ("Promjet\n");
  58
  59 #ifdef CONFIG_PHYS_64BIT
  60         printf ("       36-bit physical address map\n");
  61 #endif
  62         return 0;
  63 }
  64
  65
  66 phys_size_t
  67 initdram(int board_type)
  68 {
  69         phys_size_t dram_size = 0;
  70
  71 #if defined(CONFIG_SPD_EEPROM)
  72         dram_size = fsl_ddr_sdram();
  73 #else
  74         dram_size = fixed_sdram();
  75 #endif
  76
  77 #if defined(CONFIG_SYS_RAMBOOT)
  78         puts("    DDR: ");
  79         return dram_size;
  80 #endif
  81
  82         puts("    DDR: ");
  83         return dram_size;
  84 }
  85
  86
  87 #if !defined(CONFIG_SPD_EEPROM)
  88 /*
  89  * Fixed sdram init -- doesn't use serial presence detect.
  90  */
  91 phys_size_t
  92 fixed_sdram(void)
  93 {
  94 #if !defined(CONFIG_SYS_RAMBOOT)
  95         volatile immap_t *immap = (immap_t *) CONFIG_SYS_IMMR;
  96         volatile ccsr_ddr_t *ddr = &immap->im_ddr1;
  97
  98         ddr->cs0_bnds = CONFIG_SYS_DDR_CS0_BNDS;
  99         ddr->cs0_config = CONFIG_SYS_DDR_CS0_CONFIG;
 100         ddr->timing_cfg_3 = CONFIG_SYS_DDR_TIMING_3;
 101         ddr->timing_cfg_0 = CONFIG_SYS_DDR_TIMING_0;
 102         ddr->timing_cfg_1 = CONFIG_SYS_DDR_TIMING_1;
 103         ddr->timing_cfg_2 = CONFIG_SYS_DDR_TIMING_2;
 104         ddr->sdram_mode = CONFIG_SYS_DDR_MODE_1;
 105         ddr->sdram_mode_2 = CONFIG_SYS_DDR_MODE_2;
 106         ddr->sdram_interval = CONFIG_SYS_DDR_INTERVAL;
 107         ddr->sdram_data_init = CONFIG_SYS_DDR_DATA_INIT;
 108         ddr->sdram_clk_cntl = CONFIG_SYS_DDR_CLK_CTRL;
 109         ddr->sdram_ocd_cntl = CONFIG_SYS_DDR_OCD_CTRL;
 110         ddr->sdram_ocd_status = CONFIG_SYS_DDR_OCD_STATUS;
 111
 112 #if defined (CONFIG_DDR_ECC)
 113         ddr->err_disable = 0x0000008D;
 114         ddr->err_sbe = 0x00ff0000;
 115 #endif
 116         asm("sync;isync");
 117
 118         udelay(500);
 119
 120 #if defined (CONFIG_DDR_ECC)
 121         /* Enable ECC checking */
 122         ddr->sdram_cfg = (CONFIG_SYS_DDR_CONTROL | 0x20000000);
 123 #else
 124         ddr->sdram_cfg = CONFIG_SYS_DDR_CONTROL;
 125         ddr->sdram_cfg_2 = CONFIG_SYS_DDR_CONTROL2;
 126 #endif
 127         asm("sync; isync");
 128
 129         udelay(500);
 130 #endif
 131         return CONFIG_SYS_SDRAM_SIZE * 1024 * 1024;
 132 }
 133 #endif  /* !defined(CONFIG_SPD_EEPROM) */
 134
 135
 136 #if defined(CONFIG_PCI)
 137 static struct pci_controller pci1_hose;
 138 #endif /* CONFIG_PCI */
 139
 140 #ifdef CONFIG_PCI2
 141 static struct pci_controller pci2_hose;
 142 #endif  /* CONFIG_PCI2 */
 143
 144 int first_free_busno = 0;
 145
 146 void pci_init_board(void)
 147 {
 148 #ifdef CONFIG_PCI1
 149 {
 150         volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCI1_ADDR;
 151         struct pci_controller *hose = &pci1_hose;
 152         struct pci_region *r = hose->regions;
 153         volatile immap_t *immap = (immap_t *) CONFIG_SYS_CCSRBAR;
 154         volatile ccsr_gur_t *gur = &immap->im_gur;
 155         uint devdisr = gur->devdisr;
 156         uint io_sel = (gur->pordevsr & MPC8641_PORDEVSR_IO_SEL)
 157                 >> MPC8641_PORDEVSR_IO_SEL_SHIFT;
 158         int pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_1, io_sel);
 159
 160 #ifdef DEBUG
 161         uint host1_agent = (gur->porbmsr & MPC8641_PORBMSR_HA)
 162                 >> MPC8641_PORBMSR_HA_SHIFT;
 163         uint pex1_agent = (host1_agent == 0) || (host1_agent == 1);
 164 #endif
 165         if (pcie_configured && !(devdisr & MPC86xx_DEVDISR_PCIEX1)) {
 166                 debug("PCI-EXPRESS 1: %s \n", pex1_agent ? "Agent" : "Host");
 167                 debug("0x%08x=0x%08x ", &pci->pme_msg_det, pci->pme_msg_det);
 168                 if (pci->pme_msg_det) {
 169                         pci->pme_msg_det = 0xffffffff;
 170                         debug(" with errors.  Clearing.  Now 0x%08x",
 171                               pci->pme_msg_det);
 172                 }
 173                 debug("\n");
 174
 175                 /* outbound memory */
 176                 pci_set_region(r++,
 177                                CONFIG_SYS_PCI1_MEM_BUS,
 178                                CONFIG_SYS_PCI1_MEM_PHYS,
 179                                CONFIG_SYS_PCI1_MEM_SIZE,
 180                                PCI_REGION_MEM);
 181
 182                 /* outbound io */
 183                 pci_set_region(r++,
 184                                CONFIG_SYS_PCI1_IO_BUS,
 185                                CONFIG_SYS_PCI1_IO_PHYS,
 186                                CONFIG_SYS_PCI1_IO_SIZE,
 187                                PCI_REGION_IO);
 188
 189                 hose->region_count = r - hose->regions;
 190
 191                 hose->first_busno=first_free_busno;
 192
 193                 fsl_pci_init(hose, (u32)&pci->cfg_addr, (u32)&pci->cfg_data);
 194
 195                 first_free_busno=hose->last_busno+1;
 196                 printf ("    PCI-EXPRESS 1 on bus %02x - %02x\n",
 197                         hose->first_busno,hose->last_busno);
 198
 199                 /*
 200                  * Activate ULI1575 legacy chip by performing a fake
 201                  * memory access.  Needed to make ULI RTC work.
 202                  */
 203                 in_be32((unsigned *) ((char *)(CONFIG_SYS_PCI1_MEM_VIRT
 204                                        + CONFIG_SYS_PCI1_MEM_SIZE - 0x1000000)));
 205
 206         } else {
 207                 puts("PCI-EXPRESS 1: Disabled\n");
 208         }
 209 }
 210 #else
 211         puts("PCI-EXPRESS1: Disabled\n");
 212 #endif /* CONFIG_PCI1 */
 213
 214 #ifdef CONFIG_PCI2
 215 {
 216         volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCI2_ADDR;
 217         struct pci_controller *hose = &pci2_hose;
 218         struct pci_region *r = hose->regions;
 219
 220         /* outbound memory */
 221         pci_set_region(r++,
 222                        CONFIG_SYS_PCI2_MEM_BUS,
 223                        CONFIG_SYS_PCI2_MEM_PHYS,
 224                        CONFIG_SYS_PCI2_MEM_SIZE,
 225                        PCI_REGION_MEM);
 226
 227         /* outbound io */
 228         pci_set_region(r++,
 229                        CONFIG_SYS_PCI2_IO_BUS,
 230                        CONFIG_SYS_PCI2_IO_PHYS,
 231                        CONFIG_SYS_PCI2_IO_SIZE,
 232                        PCI_REGION_IO);
 233
 234         hose->region_count = r - hose->regions;
 235
 236         hose->first_busno=first_free_busno;
 237
 238         fsl_pci_init(hose, (u32)&pci->cfg_addr, (u32)&pci->cfg_data);
 239
 240         first_free_busno=hose->last_busno+1;
 241         printf ("    PCI-EXPRESS 2 on bus %02x - %02x\n",
 242                 hose->first_busno,hose->last_busno);
 243 }
 244 #else
 245         puts("PCI-EXPRESS 2: Disabled\n");
 246 #endif /* CONFIG_PCI2 */
 247
 248 }
 249
 250
 251 #if defined(CONFIG_OF_BOARD_SETUP)
 252 void
 253 ft_board_setup(void *blob, bd_t *bd)
 254 {
 255         int off;
 256         u64 *tmp;
 257         u32 *addrcells;
 258
 259         ft_cpu_setup(blob, bd);
 260
 261 #ifdef CONFIG_PCI1
 262         ft_fsl_pci_setup(blob, "pci0", &pci1_hose);
 263 #endif
 264 #ifdef CONFIG_PCI2
 265         ft_fsl_pci_setup(blob, "pci1", &pci2_hose);
 266 #endif
 267
 268         /*
 269          * Warn if it looks like the device tree doesn't match u-boot.
 270          * This is just an estimation, based on the location of CCSR,
 271          * which is defined by the "reg" property in the soc node.
 272          */
 273         off = fdt_path_offset(blob, "/soc8641");
 274         addrcells = (u32 *)fdt_getprop(blob, 0, "#address-cells", NULL);
 275         tmp = (u64 *)fdt_getprop(blob, off, "reg", NULL);
 276
 277         if (tmp) {
 278                 u64 addr;
 279                 if (addrcells && (*addrcells == 1))
 280                         addr = *(u32 *)tmp;
 281                 else
 282                         addr = *tmp;
 283
 284                 if (addr != CONFIG_SYS_CCSRBAR_PHYS)
 285                         printf("WARNING: The CCSRBAR address in your .dts "
 286                                "does not match the address of the CCSR "
 287                                "in u-boot.  This means your .dts might "
 288                                "be old.\n");
 289         }
 290 }
 291 #endif
 292
 293
 294 /*
 295  * get_board_sys_clk
 296  *      Reads the FPGA on board for CONFIG_SYS_CLK_FREQ
 297  */
 298
 299 unsigned long
 300 get_board_sys_clk(ulong dummy)
 301 {
 302         u8 i, go_bit, rd_clks;
 303         ulong val = 0;
 304         u8 *pixis_base = (u8 *)PIXIS_BASE;
 305
 306         go_bit = in_8(pixis_base + PIXIS_VCTL);
 307         go_bit &= 0x01;
 308
 309         rd_clks = in_8(pixis_base + PIXIS_VCFGEN0);
 310         rd_clks &= 0x1C;
 311
 312         /*
 313          * Only if both go bit and the SCLK bit in VCFGEN0 are set
 314          * should we be using the AUX register. Remember, we also set the
 315          * GO bit to boot from the alternate bank on the on-board flash
 316          */
 317
 318         if (go_bit) {
 319                 if (rd_clks == 0x1c)
 320                         i = in_8(pixis_base + PIXIS_AUX);
 321                 else
 322                         i = in_8(pixis_base + PIXIS_SPD);
 323         } else {
 324                 i = in_8(pixis_base + PIXIS_SPD);
 325         }
 326
 327         i &= 0x07;
 328
 329         switch (i) {
 330         case 0:
 331                 val = 33000000;
 332                 break;
 333         case 1:
 334                 val = 40000000;
 335                 break;
 336         case 2:
 337                 val = 50000000;
 338                 break;
 339         case 3:
 340                 val = 66000000;
 341                 break;
 342         case 4:
 343                 val = 83000000;
 344                 break;
 345         case 5:
 346                 val = 100000000;
 347                 break;
 348         case 6:
 349                 val = 134000000;
 350                 break;
 351         case 7:
 352                 val = 166000000;
 353                 break;
 354         }
 355
 356         return val;
 357 }
 358
 359 int board_eth_init(bd_t *bis)
 360 {
 361         /* Initialize TSECs */
 362         cpu_eth_init(bis);
 363         return pci_eth_init(bis);
 364 }
 365
 366 void board_reset(void)
 367 {
 368         u8 *pixis_base = (u8 *)PIXIS_BASE;
 369
 370         out_8(pixis_base + PIXIS_RST, 0);
 371
 372         while (1)
 373                 ;
 374 }
 375
 376 #ifdef CONFIG_MP
 377 extern void cpu_mp_lmb_reserve(struct lmb *lmb);
 378
 379 void board_lmb_reserve(struct lmb *lmb)
 380 {
 381         cpu_mp_lmb_reserve(lmb);
 382 }
 383 #endif