board/amcc/yucca/yucca.c

   1 /*
   2  * (C) Copyright 2006
   3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  *
  23  * Port to AMCC-440SPE Evaluation Board SOP - April 2005
  24  *
  25  * PCIe supporting routines derived from Linux 440SPe PCIe driver.
  26  */
  27
  28 #include <common.h>
  29 #include <ppc4xx.h>
  30 #include <i2c.h>
  31 #include <netdev.h>
  32 #include <asm/processor.h>
  33 #include <asm/io.h>
  34 #include <asm/4xx_pcie.h>
  35 #include <asm/errno.h>
  36
  37 #include "yucca.h"
  38
  39 DECLARE_GLOBAL_DATA_PTR;
  40
  41 void fpga_init (void);
  42
  43 #define DEBUG_ENV
  44 #ifdef DEBUG_ENV
  45 #define DEBUGF(fmt,args...) printf(fmt ,##args)
  46 #else
  47 #define DEBUGF(fmt,args...)
  48 #endif
  49
  50 #define FALSE   0
  51 #define TRUE    1
  52
  53 int board_early_init_f (void)
  54 {
  55 /*----------------------------------------------------------------------------+
  56 | Define Boot devices
  57 +----------------------------------------------------------------------------*/
  58 #define BOOT_FROM_SMALL_FLASH           0x00
  59 #define BOOT_FROM_LARGE_FLASH_OR_SRAM   0x01
  60 #define BOOT_FROM_PCI                   0x02
  61 #define BOOT_DEVICE_UNKNOWN             0x03
  62
  63 /*----------------------------------------------------------------------------+
  64 | EBC Devices Characteristics
  65 |   Peripheral Bank Access Parameters       -   EBC_BxAP
  66 |   Peripheral Bank Configuration Register  -   EBC_BxCR
  67 +----------------------------------------------------------------------------*/
  68
  69 /*
  70  * Small Flash and FRAM
  71  * BU Value
  72  * BxAP : 0x03800000  - 0 00000111 0 00 00 00 00 00 000 0 0 0 0 00000
  73  * B0CR : 0xff098000  - BAS = ff0 - 100 11 00 0000000000000
  74  * B2CR : 0xe7098000  - BAS = e70 - 100 11 00 0000000000000
  75  */
  76 #define EBC_BXAP_SMALL_FLASH            EBC_BXAP_BME_DISABLED   | \
  77                                         EBC_BXAP_TWT_ENCODE(7)  | \
  78                                         EBC_BXAP_BCE_DISABLE    | \
  79                                         EBC_BXAP_BCT_2TRANS     | \
  80                                         EBC_BXAP_CSN_ENCODE(0)  | \
  81                                         EBC_BXAP_OEN_ENCODE(0)  | \
  82                                         EBC_BXAP_WBN_ENCODE(0)  | \
  83                                         EBC_BXAP_WBF_ENCODE(0)  | \
  84                                         EBC_BXAP_TH_ENCODE(0)   | \
  85                                         EBC_BXAP_RE_DISABLED    | \
  86                                         EBC_BXAP_SOR_DELAYED    | \
  87                                         EBC_BXAP_BEM_WRITEONLY  | \
  88                                         EBC_BXAP_PEN_DISABLED
  89
  90 #define EBC_BXCR_SMALL_FLASH_CS0        EBC_BXCR_BAS_ENCODE(0xFF000000) | \
  91                                         EBC_BXCR_BS_16MB                | \
  92                                         EBC_BXCR_BU_RW                  | \
  93                                         EBC_BXCR_BW_8BIT
  94
  95 #define EBC_BXCR_SMALL_FLASH_CS2        EBC_BXCR_BAS_ENCODE(0xe7000000) | \
  96                                         EBC_BXCR_BS_16MB                | \
  97                                         EBC_BXCR_BU_RW                  | \
  98                                         EBC_BXCR_BW_8BIT
  99
 100 /*
 101  * Large Flash and SRAM
 102  * BU Value
 103  * BxAP : 0x048ff240  - 0 00000111 0 00 00 00 00 00 000 0 0 0 0 00000
 104  * B0CR : 0xff09a000  - BAS = ff0 - 100 11 01 0000000000000
 105  * B2CR : 0xe709a000  - BAS = e70 - 100 11 01 0000000000000
 106 */
 107 #define EBC_BXAP_LARGE_FLASH            EBC_BXAP_BME_DISABLED   | \
 108                                         EBC_BXAP_TWT_ENCODE(7)  | \
 109                                         EBC_BXAP_BCE_DISABLE    | \
 110                                         EBC_BXAP_BCT_2TRANS     | \
 111                                         EBC_BXAP_CSN_ENCODE(0)  | \
 112                                         EBC_BXAP_OEN_ENCODE(0)  | \
 113                                         EBC_BXAP_WBN_ENCODE(0)  | \
 114                                         EBC_BXAP_WBF_ENCODE(0)  | \
 115                                         EBC_BXAP_TH_ENCODE(0)   | \
 116                                         EBC_BXAP_RE_DISABLED    | \
 117                                         EBC_BXAP_SOR_DELAYED    | \
 118                                         EBC_BXAP_BEM_WRITEONLY  | \
 119                                         EBC_BXAP_PEN_DISABLED
 120
 121 #define EBC_BXCR_LARGE_FLASH_CS0        EBC_BXCR_BAS_ENCODE(0xFF000000) | \
 122                                         EBC_BXCR_BS_16MB                | \
 123                                         EBC_BXCR_BU_RW                  | \
 124                                         EBC_BXCR_BW_16BIT
 125
 126 #define EBC_BXCR_LARGE_FLASH_CS2        EBC_BXCR_BAS_ENCODE(0xE7000000) | \
 127                                         EBC_BXCR_BS_16MB                | \
 128                                         EBC_BXCR_BU_RW                  | \
 129                                         EBC_BXCR_BW_16BIT
 130
 131 /*
 132  * FPGA
 133  * BU value :
 134  * B1AP = 0x05895240  - 0 00001011 0 00 10 01 01 01 001 0 0 1 0 00000
 135  * B1CR = 0xe201a000  - BAS = e20 - 000 11 01 00000000000000
 136  */
 137 #define EBC_BXAP_FPGA                   EBC_BXAP_BME_DISABLED   | \
 138                                         EBC_BXAP_TWT_ENCODE(11) | \
 139                                         EBC_BXAP_BCE_DISABLE    | \
 140                                         EBC_BXAP_BCT_2TRANS     | \
 141                                         EBC_BXAP_CSN_ENCODE(10) | \
 142                                         EBC_BXAP_OEN_ENCODE(1)  | \
 143                                         EBC_BXAP_WBN_ENCODE(1)  | \
 144                                         EBC_BXAP_WBF_ENCODE(1)  | \
 145                                         EBC_BXAP_TH_ENCODE(1)   | \
 146                                         EBC_BXAP_RE_DISABLED    | \
 147                                         EBC_BXAP_SOR_DELAYED    | \
 148                                         EBC_BXAP_BEM_RW         | \
 149                                         EBC_BXAP_PEN_DISABLED
 150
 151 #define EBC_BXCR_FPGA_CS1               EBC_BXCR_BAS_ENCODE(0xe2000000) | \
 152                                         EBC_BXCR_BS_1MB                 | \
 153                                         EBC_BXCR_BU_RW                  | \
 154                                         EBC_BXCR_BW_16BIT
 155
 156          unsigned long mfr;
 157         /*
 158          * Define Variables for EBC initialization depending on BOOTSTRAP option
 159          */
 160         unsigned long sdr0_pinstp, sdr0_sdstp1 ;
 161         unsigned long bootstrap_settings, ebc_data_width, boot_selection;
 162         int computed_boot_device = BOOT_DEVICE_UNKNOWN;
 163
 164         /*-------------------------------------------------------------------+
 165          | Initialize EBC CONFIG -
 166          | Keep the Default value, but the bit PDT which has to be set to 1 ?TBC
 167          | default value :
 168          |      0x07C00000 - 0 0 000 1 1 1 1 1 0000 0 00000 000000000000
 169          |
 170          +-------------------------------------------------------------------*/
 171         mtebc(EBC0_CFG, EBC_CFG_LE_UNLOCK |
 172                         EBC_CFG_PTD_ENABLE |
 173                         EBC_CFG_RTC_16PERCLK |
 174                         EBC_CFG_ATC_PREVIOUS |
 175                         EBC_CFG_DTC_PREVIOUS |
 176                         EBC_CFG_CTC_PREVIOUS |
 177                         EBC_CFG_OEO_PREVIOUS |
 178                         EBC_CFG_EMC_DEFAULT |
 179                         EBC_CFG_PME_DISABLE |
 180                         EBC_CFG_PR_16);
 181
 182         /*-------------------------------------------------------------------+
 183          |
 184          |  PART 1 : Initialize EBC Bank 1
 185          |  ==============================
 186          | Bank1 is always associated to the EPLD.
 187          | It has to be initialized prior to other banks settings computation
 188          | since some board registers values may be needed to determine the
 189          | boot type
 190          |
 191          +-------------------------------------------------------------------*/
 192         mtebc(PB1AP, EBC_BXAP_FPGA);
 193         mtebc(PB1CR, EBC_BXCR_FPGA_CS1);
 194
 195         /*-------------------------------------------------------------------+
 196          |
 197          |  PART 2 : Determine which boot device was selected
 198          |  =================================================
 199          |
 200          |  Read Pin Strap Register in PPC440SPe
 201          |  Result can either be :
 202          |   - Boot strap = boot from EBC 8bits     => Small Flash
 203          |   - Boot strap = boot from PCI
 204          |   - Boot strap = IIC
 205          |  In case of boot from IIC, read Serial Device Strap Register1
 206          |
 207          |  Result can either be :
 208          |   - Boot from EBC  - EBC Bus Width = 8bits    => Small Flash
 209          |   - Boot from EBC  - EBC Bus Width = 16bits   => Large Flash or SRAM
 210          |   - Boot from PCI
 211          |
 212          +-------------------------------------------------------------------*/
 213         /* Read Pin Strap Register in PPC440SP */
 214         mfsdr(SDR0_PINSTP, sdr0_pinstp);
 215         bootstrap_settings = sdr0_pinstp & SDR0_PINSTP_BOOTSTRAP_MASK;
 216
 217         switch (bootstrap_settings) {
 218                 case SDR0_PINSTP_BOOTSTRAP_SETTINGS0:
 219                         /*
 220                          * Strapping Option A
 221                          * Boot from EBC - 8 bits , Small Flash
 222                          */
 223                         computed_boot_device = BOOT_FROM_SMALL_FLASH;
 224                         break;
 225                 case SDR0_PINSTP_BOOTSTRAP_SETTINGS1:
 226                         /*
 227                          * Strappping Option B
 228                          * Boot from PCI
 229                          */
 230                         computed_boot_device = BOOT_FROM_PCI;
 231                         break;
 232                 case SDR0_PINSTP_BOOTSTRAP_IIC_50_EN:
 233                 case SDR0_PINSTP_BOOTSTRAP_IIC_54_EN:
 234                         /*
 235                          * Strapping Option C or D
 236                          * Boot Settings in IIC EEprom address 0x50 or 0x54
 237                          * Read Serial Device Strap Register1 in PPC440SPe
 238                          */
 239                         mfsdr(SDR0_SDSTP1, sdr0_sdstp1);
 240                         boot_selection = sdr0_sdstp1 & SDR0_SDSTP1_ERPN_MASK;
 241                         ebc_data_width = sdr0_sdstp1 & SDR0_SDSTP1_EBCW_MASK;
 242
 243                         switch (boot_selection) {
 244                                 case SDR0_SDSTP1_ERPN_EBC:
 245                                         switch (ebc_data_width) {
 246                                                 case SDR0_SDSTP1_EBCW_16_BITS:
 247                                                         computed_boot_device =
 248                                                                 BOOT_FROM_LARGE_FLASH_OR_SRAM;
 249                                                         break;
 250                                                 case SDR0_SDSTP1_EBCW_8_BITS :
 251                                                         computed_boot_device = BOOT_FROM_SMALL_FLASH;
 252                                                         break;
 253                                         }
 254                                         break;
 255
 256                                 case SDR0_SDSTP1_ERPN_PCI:
 257                                         computed_boot_device = BOOT_FROM_PCI;
 258                                         break;
 259                                 default:
 260                                         /* should not occure */
 261                                         computed_boot_device = BOOT_DEVICE_UNKNOWN;
 262                         }
 263                         break;
 264                 default:
 265                         /* should not be */
 266                         computed_boot_device = BOOT_DEVICE_UNKNOWN;
 267                         break;
 268         }
 269
 270         /*-------------------------------------------------------------------+
 271          |
 272          |  PART 3 : Compute EBC settings depending on selected boot device
 273          |  ======   ======================================================
 274          |
 275          | Resulting EBC init will be among following configurations :
 276          |
 277          |  - Boot from EBC 8bits => boot from Small Flash selected
 278          |            EBC-CS0     = Small Flash
 279          |            EBC-CS2     = Large Flash and SRAM
 280          |
 281          |  - Boot from EBC 16bits => boot from Large Flash or SRAM
 282          |            EBC-CS0     = Large Flash or SRAM
 283          |            EBC-CS2     = Small Flash
 284          |
 285          |  - Boot from PCI
 286          |            EBC-CS0     = not initialized to avoid address contention
 287          |            EBC-CS2     = same as boot from Small Flash selected
 288          |
 289          +-------------------------------------------------------------------*/
 290         unsigned long ebc0_cs0_bxap_value = 0, ebc0_cs0_bxcr_value = 0;
 291         unsigned long ebc0_cs2_bxap_value = 0, ebc0_cs2_bxcr_value = 0;
 292
 293         switch (computed_boot_device) {
 294                 /*-------------------------------------------------------------------*/
 295                 case BOOT_FROM_PCI:
 296                 /*-------------------------------------------------------------------*/
 297                         /*
 298                          * By Default CS2 is affected to LARGE Flash
 299                          * do not initialize SMALL FLASH to avoid address contention
 300                          * Large Flash
 301                          */
 302                         ebc0_cs2_bxap_value = EBC_BXAP_LARGE_FLASH;
 303                         ebc0_cs2_bxcr_value = EBC_BXCR_LARGE_FLASH_CS2;
 304                         break;
 305
 306                 /*-------------------------------------------------------------------*/
 307                 case BOOT_FROM_SMALL_FLASH:
 308                 /*-------------------------------------------------------------------*/
 309                         ebc0_cs0_bxap_value = EBC_BXAP_SMALL_FLASH;
 310                         ebc0_cs0_bxcr_value = EBC_BXCR_SMALL_FLASH_CS0;
 311
 312                         /*
 313                          * Large Flash or SRAM
 314                          */
 315                         /* ebc0_cs2_bxap_value = EBC_BXAP_LARGE_FLASH; */
 316                         ebc0_cs2_bxap_value = 0x048ff240;
 317                         ebc0_cs2_bxcr_value = EBC_BXCR_LARGE_FLASH_CS2;
 318                         break;
 319
 320                 /*-------------------------------------------------------------------*/
 321                 case BOOT_FROM_LARGE_FLASH_OR_SRAM:
 322                 /*-------------------------------------------------------------------*/
 323                         ebc0_cs0_bxap_value = EBC_BXAP_LARGE_FLASH;
 324                         ebc0_cs0_bxcr_value = EBC_BXCR_LARGE_FLASH_CS0;
 325
 326                         /* Small flash */
 327                         ebc0_cs2_bxap_value = EBC_BXAP_SMALL_FLASH;
 328                         ebc0_cs2_bxcr_value = EBC_BXCR_SMALL_FLASH_CS2;
 329                         break;
 330
 331                 /*-------------------------------------------------------------------*/
 332                 default:
 333                 /*-------------------------------------------------------------------*/
 334                         /* BOOT_DEVICE_UNKNOWN */
 335                         break;
 336         }
 337
 338         mtebc(PB0AP, ebc0_cs0_bxap_value);
 339         mtebc(PB0CR, ebc0_cs0_bxcr_value);
 340         mtebc(PB2AP, ebc0_cs2_bxap_value);
 341         mtebc(PB2CR, ebc0_cs2_bxcr_value);
 342
 343         /*--------------------------------------------------------------------+
 344          | Interrupt controller setup for the AMCC 440SPe Evaluation board.
 345          +--------------------------------------------------------------------+
 346         +---------------------------------------------------------------------+
 347         |Interrupt| Source                            | Pol.  | Sensi.| Crit. |
 348         +---------+-----------------------------------+-------+-------+-------+
 349         | IRQ 00  | UART0                             | High  | Level | Non   |
 350         | IRQ 01  | UART1                             | High  | Level | Non   |
 351         | IRQ 02  | IIC0                              | High  | Level | Non   |
 352         | IRQ 03  | IIC1                              | High  | Level | Non   |
 353         | IRQ 04  | PCI0X0 MSG IN                     | High  | Level | Non   |
 354         | IRQ 05  | PCI0X0 CMD Write                  | High  | Level | Non   |
 355         | IRQ 06  | PCI0X0 Power Mgt                  | High  | Level | Non   |
 356         | IRQ 07  | PCI0X0 VPD Access                 | Rising| Edge  | Non   |
 357         | IRQ 08  | PCI0X0 MSI level 0                | High  | Lvl/ed| Non   |
 358         | IRQ 09  | External IRQ 15 - (PCI-Express)   | pgm H | Pgm   | Non   |
 359         | IRQ 10  | UIC2 Non-critical Int.            | NA    | NA    | Non   |
 360         | IRQ 11  | UIC2 Critical Interrupt           | NA    | NA    | Crit  |
 361         | IRQ 12  | PCI Express MSI Level 0           | Rising| Edge  | Non   |
 362         | IRQ 13  | PCI Express MSI Level 1           | Rising| Edge  | Non   |
 363         | IRQ 14  | PCI Express MSI Level 2           | Rising| Edge  | Non   |
 364         | IRQ 15  | PCI Express MSI Level 3           | Rising| Edge  | Non   |
 365         | IRQ 16  | UIC3 Non-critical Int.            | NA    | NA    | Non   |
 366         | IRQ 17  | UIC3 Critical Interrupt           | NA    | NA    | Crit  |
 367         | IRQ 18  | External IRQ 14 - (PCI-Express)   | Pgm   | Pgm   | Non   |
 368         | IRQ 19  | DMA Channel 0 FIFO Full           | High  | Level | Non   |
 369         | IRQ 20  | DMA Channel 0 Stat FIFO           | High  | Level | Non   |
 370         | IRQ 21  | DMA Channel 1 FIFO Full           | High  | Level | Non   |
 371         | IRQ 22  | DMA Channel 1 Stat FIFO           | High  | Level | Non   |
 372         | IRQ 23  | I2O Inbound Doorbell              | High  | Level | Non   |
 373         | IRQ 24  | Inbound Post List FIFO Not Empt   | High  | Level | Non   |
 374         | IRQ 25  | I2O Region 0 LL PLB Write         | High  | Level | Non   |
 375         | IRQ 26  | I2O Region 1 LL PLB Write         | High  | Level | Non   |
 376         | IRQ 27  | I2O Region 0 HB PLB Write         | High  | Level | Non   |
 377         | IRQ 28  | I2O Region 1 HB PLB Write         | High  | Level | Non   |
 378         | IRQ 29  | GPT Down Count Timer              | Rising| Edge  | Non   |
 379         | IRQ 30  | UIC1 Non-critical Int.            | NA    | NA    | Non   |
 380         | IRQ 31  | UIC1 Critical Interrupt           | NA    | NA    | Crit. |
 381         |----------------------------------------------------------------------
 382         | IRQ 32  | Ext. IRQ 13 - (PCI-Express)       |pgm (H)|pgm/Lvl| Non   |
 383         | IRQ 33  | MAL Serr                          | High  | Level | Non   |
 384         | IRQ 34  | MAL Txde                          | High  | Level | Non   |
 385         | IRQ 35  | MAL Rxde                          | High  | Level | Non   |
 386         | IRQ 36  | DMC CE or DMC UE                  | High  | Level | Non   |
 387         | IRQ 37  | EBC or UART2                      | High  |Lvl Edg| Non   |
 388         | IRQ 38  | MAL TX EOB                        | High  | Level | Non   |
 389         | IRQ 39  | MAL RX EOB                        | High  | Level | Non   |
 390         | IRQ 40  | PCIX0 MSI Level 1                 | High  |Lvl Edg| Non   |
 391         | IRQ 41  | PCIX0 MSI level 2                 | High  |Lvl Edg| Non   |
 392         | IRQ 42  | PCIX0 MSI level 3                 | High  |Lvl Edg| Non   |
 393         | IRQ 43  | L2 Cache                          | Risin | Edge  | Non   |
 394         | IRQ 44  | GPT Compare Timer 0               | Risin | Edge  | Non   |
 395         | IRQ 45  | GPT Compare Timer 1               | Risin | Edge  | Non   |
 396         | IRQ 46  | GPT Compare Timer 2               | Risin | Edge  | Non   |
 397         | IRQ 47  | GPT Compare Timer 3               | Risin | Edge  | Non   |
 398         | IRQ 48  | GPT Compare Timer 4               | Risin | Edge  | Non   |
 399         | IRQ 49  | Ext. IRQ 12 - PCI-X               |pgm/Fal|pgm/Lvl| Non   |
 400         | IRQ 50  | Ext. IRQ 11 -                     |pgm (H)|pgm/Lvl| Non   |
 401         | IRQ 51  | Ext. IRQ 10 -                     |pgm (H)|pgm/Lvl| Non   |
 402         | IRQ 52  | Ext. IRQ 9                        |pgm (H)|pgm/Lvl| Non   |
 403         | IRQ 53  | Ext. IRQ 8                        |pgm (H)|pgm/Lvl| Non   |
 404         | IRQ 54  | DMA Error                         | High  | Level | Non   |
 405         | IRQ 55  | DMA I2O Error                     | High  | Level | Non   |
 406         | IRQ 56  | Serial ROM                        | High  | Level | Non   |
 407         | IRQ 57  | PCIX0 Error                       | High  | Edge  | Non   |
 408         | IRQ 58  | Ext. IRQ 7-                       |pgm (H)|pgm/Lvl| Non   |
 409         | IRQ 59  | Ext. IRQ 6-                       |pgm (H)|pgm/Lvl| Non   |
 410         | IRQ 60  | EMAC0 Interrupt                   | High  | Level | Non   |
 411         | IRQ 61  | EMAC0 Wake-up                     | High  | Level | Non   |
 412         | IRQ 62  | Reserved                          | High  | Level | Non   |
 413         | IRQ 63  | XOR                               | High  | Level | Non   |
 414         |----------------------------------------------------------------------
 415         | IRQ 64  | PE0 AL                            | High  | Level | Non   |
 416         | IRQ 65  | PE0 VPD Access                    | Risin | Edge  | Non   |
 417         | IRQ 66  | PE0 Hot Reset Request             | Risin | Edge  | Non   |
 418         | IRQ 67  | PE0 Hot Reset Request             | Falli | Edge  | Non   |
 419         | IRQ 68  | PE0 TCR                           | High  | Level | Non   |
 420         | IRQ 69  | PE0 BusMaster VCO                 | Falli | Edge  | Non   |
 421         | IRQ 70  | PE0 DCR Error                     | High  | Level | Non   |
 422         | IRQ 71  | Reserved                          | N/A   | N/A   | Non   |
 423         | IRQ 72  | PE1 AL                            | High  | Level | Non   |
 424         | IRQ 73  | PE1 VPD Access                    | Risin | Edge  | Non   |
 425         | IRQ 74  | PE1 Hot Reset Request             | Risin | Edge  | Non   |
 426         | IRQ 75  | PE1 Hot Reset Request             | Falli | Edge  | Non   |
 427         | IRQ 76  | PE1 TCR                           | High  | Level | Non   |
 428         | IRQ 77  | PE1 BusMaster VCO                 | Falli | Edge  | Non   |
 429         | IRQ 78  | PE1 DCR Error                     | High  | Level | Non   |
 430         | IRQ 79  | Reserved                          | N/A   | N/A   | Non   |
 431         | IRQ 80  | PE2 AL                            | High  | Level | Non   |
 432         | IRQ 81  | PE2 VPD Access                    | Risin | Edge  | Non   |
 433         | IRQ 82  | PE2 Hot Reset Request             | Risin | Edge  | Non   |
 434         | IRQ 83  | PE2 Hot Reset Request             | Falli | Edge  | Non   |
 435         | IRQ 84  | PE2 TCR                           | High  | Level | Non   |
 436         | IRQ 85  | PE2 BusMaster VCO                 | Falli | Edge  | Non   |
 437         | IRQ 86  | PE2 DCR Error                     | High  | Level | Non   |
 438         | IRQ 87  | Reserved                          | N/A   | N/A   | Non   |
 439         | IRQ 88  | External IRQ(5)                   | Progr | Progr | Non   |
 440         | IRQ 89  | External IRQ 4 - Ethernet         | Progr | Progr | Non   |
 441         | IRQ 90  | External IRQ 3 - PCI-X            | Progr | Progr | Non   |
 442         | IRQ 91  | External IRQ 2 - PCI-X            | Progr | Progr | Non   |
 443         | IRQ 92  | External IRQ 1 - PCI-X            | Progr | Progr | Non   |
 444         | IRQ 93  | External IRQ 0 - PCI-X            | Progr | Progr | Non   |
 445         | IRQ 94  | Reserved                          | N/A   | N/A   | Non   |
 446         | IRQ 95  | Reserved                          | N/A   | N/A   | Non   |
 447         |---------------------------------------------------------------------
 448         | IRQ 96  | PE0 INTA                          | High  | Level | Non   |
 449         | IRQ 97  | PE0 INTB                          | High  | Level | Non   |
 450         | IRQ 98  | PE0 INTC                          | High  | Level | Non   |
 451         | IRQ 99  | PE0 INTD                          | High  | Level | Non   |
 452         | IRQ 100 | PE1 INTA                          | High  | Level | Non   |
 453         | IRQ 101 | PE1 INTB                          | High  | Level | Non   |
 454         | IRQ 102 | PE1 INTC                          | High  | Level | Non   |
 455         | IRQ 103 | PE1 INTD                          | High  | Level | Non   |
 456         | IRQ 104 | PE2 INTA                          | High  | Level | Non   |
 457         | IRQ 105 | PE2 INTB                          | High  | Level | Non   |
 458         | IRQ 106 | PE2 INTC                          | High  | Level | Non   |
 459         | IRQ 107 | PE2 INTD                          | Risin | Edge  | Non   |
 460         | IRQ 108 | PCI Express MSI Level 4           | Risin | Edge  | Non   |
 461         | IRQ 109 | PCI Express MSI Level 5           | Risin | Edge  | Non   |
 462         | IRQ 110 | PCI Express MSI Level 6           | Risin | Edge  | Non   |
 463         | IRQ 111 | PCI Express MSI Level 7           | Risin | Edge  | Non   |
 464         | IRQ 116 | PCI Express MSI Level 12          | Risin | Edge  | Non   |
 465         | IRQ 112 | PCI Express MSI Level 8           | Risin | Edge  | Non   |
 466         | IRQ 113 | PCI Express MSI Level 9           | Risin | Edge  | Non   |
 467         | IRQ 114 | PCI Express MSI Level 10          | Risin | Edge  | Non   |
 468         | IRQ 115 | PCI Express MSI Level 11          | Risin | Edge  | Non   |
 469         | IRQ 117 | PCI Express MSI Level 13          | Risin | Edge  | Non   |
 470         | IRQ 118 | PCI Express MSI Level 14          | Risin | Edge  | Non   |
 471         | IRQ 119 | PCI Express MSI Level 15          | Risin | Edge  | Non   |
 472         | IRQ 120 | PCI Express MSI Level 16          | Risin | Edge  | Non   |
 473         | IRQ 121 | PCI Express MSI Level 17          | Risin | Edge  | Non   |
 474         | IRQ 122 | PCI Express MSI Level 18          | Risin | Edge  | Non   |
 475         | IRQ 123 | PCI Express MSI Level 19          | Risin | Edge  | Non   |
 476         | IRQ 124 | PCI Express MSI Level 20          | Risin | Edge  | Non   |
 477         | IRQ 125 | PCI Express MSI Level 21          | Risin | Edge  | Non   |
 478         | IRQ 126 | PCI Express MSI Level 22          | Risin | Edge  | Non   |
 479         | IRQ 127 | PCI Express MSI Level 23          | Risin | Edge  | Non   |
 480         +---------+-----------------------------------+-------+-------+------*/
 481         /*--------------------------------------------------------------------+
 482          | Put UICs in PowerPC440SPemode.
 483          | Initialise UIC registers.  Clear all interrupts.  Disable all
 484          | interrupts.
 485          | Set critical interrupt values.  Set interrupt polarities.  Set
 486          | interrupt trigger levels.  Make bit 0 High  priority.  Clear all
 487          | interrupts again.
 488          +-------------------------------------------------------------------*/
 489         mtdcr (UIC3SR, 0xffffffff);     /* Clear all interrupts */
 490         mtdcr (UIC3ER, 0x00000000);     /* disable all interrupts */
 491         mtdcr (UIC3CR, 0x00000000);     /* Set Critical / Non Critical
 492                                          * interrupts */
 493         mtdcr (UIC3PR, 0xffffffff);     /* Set Interrupt Polarities */
 494         mtdcr (UIC3TR, 0x001fffff);     /* Set Interrupt Trigger Levels */
 495         mtdcr (UIC3VR, 0x00000001);     /* Set Vect base=0,INT31 Highest
 496                                          * priority */
 497         mtdcr (UIC3SR, 0x00000000);     /* clear all  interrupts */
 498         mtdcr (UIC3SR, 0xffffffff);     /* clear all  interrupts */
 499
 500         mtdcr (UIC2SR, 0xffffffff);     /* Clear all interrupts */
 501         mtdcr (UIC2ER, 0x00000000);     /* disable all interrupts */
 502         mtdcr (UIC2CR, 0x00000000);     /* Set Critical / Non Critical
 503                                          * interrupts */
 504         mtdcr (UIC2PR, 0xebebebff);     /* Set Interrupt Polarities */
 505         mtdcr (UIC2TR, 0x74747400);     /* Set Interrupt Trigger Levels */
 506         mtdcr (UIC2VR, 0x00000001);     /* Set Vect base=0,INT31 Highest
 507                                          * priority */
 508         mtdcr (UIC2SR, 0x00000000);     /* clear all interrupts */
 509         mtdcr (UIC2SR, 0xffffffff);     /* clear all interrupts */
 510
 511         mtdcr (UIC1SR, 0xffffffff);     /* Clear all interrupts */
 512         mtdcr (UIC1ER, 0x00000000);     /* disable all interrupts */
 513         mtdcr (UIC1CR, 0x00000000);     /* Set Critical / Non Critical
 514                                          * interrupts */
 515         mtdcr (UIC1PR, 0xffffffff);     /* Set Interrupt Polarities */
 516         mtdcr (UIC1TR, 0x001f8040);     /* Set Interrupt Trigger Levels */
 517         mtdcr (UIC1VR, 0x00000001);     /* Set Vect base=0,INT31 Highest
 518                                          * priority */
 519         mtdcr (UIC1SR, 0x00000000);     /* clear all interrupts */
 520         mtdcr (UIC1SR, 0xffffffff);     /* clear all interrupts */
 521
 522         mtdcr (UIC0SR, 0xffffffff);     /* Clear all interrupts */
 523         mtdcr (UIC0ER, 0x00000000);     /* disable all interrupts excepted
 524                                          * cascade to be checked */
 525         mtdcr (UIC0CR, 0x00104001);     /* Set Critical / Non Critical
 526                                          * interrupts */
 527         mtdcr (UIC0PR, 0xffffffff);     /* Set Interrupt Polarities */
 528         mtdcr (UIC0TR, 0x010f0004);     /* Set Interrupt Trigger Levels */
 529         mtdcr (UIC0VR, 0x00000001);     /* Set Vect base=0,INT31 Highest
 530                                          * priority */
 531         mtdcr (UIC0SR, 0x00000000);     /* clear all interrupts */
 532         mtdcr (UIC0SR, 0xffffffff);     /* clear all interrupts */
 533
 534         mfsdr(SDR0_MFR, mfr);
 535         mfr |= SDR0_MFR_FIXD;           /* Workaround for PCI/DMA */
 536         mtsdr(SDR0_MFR, mfr);
 537
 538         fpga_init();
 539
 540         return 0;
 541 }
 542
 543 int checkboard (void)
 544 {
 545         char *s = getenv("serial#");
 546
 547         printf("Board: Yucca - AMCC 440SPe Evaluation Board");
 548         if (s != NULL) {
 549                 puts(", serial# ");
 550                 puts(s);
 551         }
 552         putc('\n');
 553
 554         return 0;
 555 }
 556
 557 /*
 558  * Override the default functions in arch/powerpc/cpu/ppc4xx/44x_spd_ddr2.c with
 559  * board specific values.
 560  */
 561 static int ppc440spe_rev_a(void)
 562 {
 563         if ((get_pvr() == PVR_440SPe_6_RA) || (get_pvr() == PVR_440SPe_RA))
 564                 return 1;
 565         else
 566                 return 0;
 567 }
 568
 569 u32 ddr_wrdtr(u32 default_val) {
 570         /*
 571          * Yucca boards with 440SPe rev. A need a slightly different setup
 572          * for the MCIF0_WRDTR register.
 573          */
 574         if (ppc440spe_rev_a())
 575                 return (SDRAM_WRDTR_LLWP_1_CYC | SDRAM_WRDTR_WTR_270_DEG_ADV);
 576
 577         return default_val;
 578 }
 579
 580 u32 ddr_clktr(u32 default_val) {
 581         /*
 582          * Yucca boards with 440SPe rev. A need a slightly different setup
 583          * for the MCIF0_CLKTR register.
 584          */
 585         if (ppc440spe_rev_a())
 586                 return (SDRAM_CLKTR_CLKP_180_DEG_ADV);
 587
 588         return default_val;
 589 }
 590
 591 #if defined(CONFIG_PCI)
 592 int board_pcie_card_present(int port)
 593 {
 594         u16 reg;
 595
 596         reg = in_be16((u16 *)FPGA_REG1C);
 597         switch(port) {
 598         case 0:
 599                 return !(reg & FPGA_REG1C_PE0_PRSNT);
 600         case 1:
 601                 return !(reg & FPGA_REG1C_PE1_PRSNT);
 602         case 2:
 603                 return !(reg & FPGA_REG1C_PE2_PRSNT);
 604         default:
 605                 return 0;
 606         }
 607 }
 608
 609 /*
 610  * For the given slot, set endpoint mode, send power to the slot,
 611  * turn on the green LED and turn off the yellow LED, enable the
 612  * clock. In endpoint mode reset bit is read only.
 613  */
 614 void board_pcie_setup_port(int port, int rootpoint)
 615 {
 616         u16 power, clock, green_led, yellow_led,
 617                 reset_off, rp, ep;
 618
 619         switch (port) {
 620         case 0:
 621                 rp = FPGA_REG1C_PE0_ROOTPOINT;
 622                 ep = 0;
 623                 break;
 624         case 1:
 625                 rp = 0;
 626                 ep = FPGA_REG1C_PE1_ENDPOINT;
 627                 break;
 628         case 2:
 629                 rp = 0;
 630                 ep = FPGA_REG1C_PE2_ENDPOINT;
 631                 break;
 632
 633         default:
 634                 return;
 635         }
 636
 637         power = FPGA_REG1A_PWRON_ENCODE(port);
 638         green_led = FPGA_REG1A_GLED_ENCODE(port);
 639         clock = FPGA_REG1A_REFCLK_ENCODE(port);
 640         yellow_led = FPGA_REG1A_YLED_ENCODE(port);
 641         reset_off = FPGA_REG1C_PERST_ENCODE(port);
 642
 643         out_be16((u16 *)FPGA_REG1A, ~(power | clock | green_led) &
 644                  (yellow_led | in_be16((u16 *)FPGA_REG1A)));
 645
 646         out_be16((u16 *)FPGA_REG1C, ~(ep | reset_off) &
 647                  (rp | in_be16((u16 *)FPGA_REG1C)));
 648
 649         if (rootpoint) {
 650                 /*
 651                  * Leave device in reset for a while after powering on the
 652                  * slot to give it a chance to initialize.
 653                  */
 654                 udelay(250 * 1000);
 655
 656                 out_be16((u16 *)FPGA_REG1C,
 657                          reset_off | in_be16((u16 *)FPGA_REG1C));
 658         }
 659 }
 660 #endif  /* defined(CONFIG_PCI) */
 661
 662 int misc_init_f (void)
 663 {
 664         uint reg;
 665
 666         out16(FPGA_REG10, (in16(FPGA_REG10) &
 667                         ~(FPGA_REG10_AUTO_NEG_DIS|FPGA_REG10_RESET_ETH)) |
 668                                 FPGA_REG10_10MHZ_ENABLE |
 669                                 FPGA_REG10_100MHZ_ENABLE |
 670                                 FPGA_REG10_GIGABIT_ENABLE |
 671                                 FPGA_REG10_FULL_DUPLEX );
 672
 673         udelay(10000);  /* wait 10ms */
 674
 675         out16(FPGA_REG10, (in16(FPGA_REG10) | FPGA_REG10_RESET_ETH));
 676
 677         /* minimal init for PCIe */
 678         /* pci express 0 Endpoint Mode */
 679         mfsdr(SDRN_PESDR_DLPSET(0), reg);
 680         reg &= (~0x00400000);
 681         mtsdr(SDRN_PESDR_DLPSET(0), reg);
 682         /* pci express 1 Rootpoint  Mode */
 683         mfsdr(SDRN_PESDR_DLPSET(1), reg);
 684         reg |= 0x00400000;
 685         mtsdr(SDRN_PESDR_DLPSET(1), reg);
 686         /* pci express 2 Rootpoint  Mode */
 687         mfsdr(SDRN_PESDR_DLPSET(2), reg);
 688         reg |= 0x00400000;
 689         mtsdr(SDRN_PESDR_DLPSET(2), reg);
 690
 691         out16(FPGA_REG1C,(in16 (FPGA_REG1C) &
 692                                 ~FPGA_REG1C_PE0_ROOTPOINT &
 693                                 ~FPGA_REG1C_PE1_ENDPOINT  &
 694                                 ~FPGA_REG1C_PE2_ENDPOINT));
 695
 696         return 0;
 697 }
 698
 699 void fpga_init(void)
 700 {
 701         /*
 702          * by default sdram access is disabled by fpga
 703          */
 704         out16(FPGA_REG10, (in16 (FPGA_REG10) |
 705                                 FPGA_REG10_SDRAM_ENABLE |
 706                                 FPGA_REG10_ENABLE_DISPLAY ));
 707
 708         return;
 709 }
 710
 711 /*---------------------------------------------------------------------------+
 712  | onboard_pci_arbiter_selected => from EPLD
 713  +---------------------------------------------------------------------------*/
 714 int onboard_pci_arbiter_selected(int core_pci)
 715 {
 716 #if 0
 717         unsigned long onboard_pci_arbiter_sel;
 718
 719         onboard_pci_arbiter_sel = in16(FPGA_REG0) & FPGA_REG0_EXT_ARB_SEL_MASK;
 720
 721         if (onboard_pci_arbiter_sel == FPGA_REG0_EXT_ARB_SEL_EXTERNAL)
 722                 return (BOARD_OPTION_SELECTED);
 723         else
 724 #endif
 725         return (BOARD_OPTION_NOT_SELECTED);
 726 }
 727
 728 int board_eth_init(bd_t *bis)
 729 {
 730         cpu_eth_init(bis);
 731         return pci_eth_init(bis);
 732 }