1 | /* |
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2 | * (C) Copyright 2000-2005 |
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3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
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4 | * |
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5 | * See file CREDITS for list of people who contributed to this |
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6 | * project. |
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7 | * |
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8 | * This program is free software; you can redistribute it and/or |
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9 | * modify it under the terms of the GNU General Public License as |
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10 | * published by the Free Software Foundation; either version 2 of |
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11 | * the License, or (at your option) any later version. |
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12 | * |
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13 | * This program is distributed in the hope that it will be useful, |
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14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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16 | * GNU General Public License for more details. |
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17 | * |
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18 | * You should have received a copy of the GNU General Public License |
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19 | * along with this program; if not, write to the Free Software |
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20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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21 | * MA 02111-1307 USA |
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22 | */ |
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23 | |
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24 | #include <common.h> |
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25 | #include <asm/processor.h> |
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26 | #include <asm/io.h> |
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27 | |
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28 | long int spd_sdram(void); |
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29 | |
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30 | int board_early_init_f(void) |
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31 | { |
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32 | mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */ |
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33 | mtdcr(uicer, 0x00000000); /* disable all ints */ |
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34 | mtdcr(uiccr, 0x00000010); |
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35 | mtdcr(uicpr, 0xFFFF7FF0); /* set int polarities */ |
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36 | mtdcr(uictr, 0x00000010); /* set int trigger levels */ |
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37 | mtdcr(uicsr, 0xFFFFFFFF); /* clear all ints */ |
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38 | |
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39 | /* |
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40 | * Configure CPC0_PCI to enable PerWE as output |
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41 | * and enable the internal PCI arbiter if selected |
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42 | */ |
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43 | if (in_8((void *)FPGA_REG1) & FPGA_REG1_PCI_INT_ARB) |
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44 | mtdcr(cpc0_pci, CPC0_PCI_HOST_CFG_EN | CPC0_PCI_ARBIT_EN); |
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45 | else |
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46 | mtdcr(cpc0_pci, CPC0_PCI_HOST_CFG_EN); |
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47 | |
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48 | return 0; |
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49 | } |
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50 | |
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51 | /* |
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52 | * Check Board Identity: |
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53 | */ |
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54 | int checkboard(void) |
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55 | { |
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56 | char *s = getenv("serial#"); |
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57 | |
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58 | puts("Board: Bubinga - AMCC PPC405EP Evaluation Board"); |
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59 | |
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60 | if (s != NULL) { |
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61 | puts(", serial# "); |
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62 | puts(s); |
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63 | } |
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64 | putc('\n'); |
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65 | |
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66 | return (0); |
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67 | } |
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68 | |
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69 | /* ------------------------------------------------------------------------- |
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70 | initdram(int board_type) reads EEPROM via I2c. EEPROM contains all of |
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71 | the necessary info for SDRAM controller configuration |
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72 | ------------------------------------------------------------------------- */ |
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73 | phys_size_t initdram(int board_type) |
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74 | { |
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75 | long int ret; |
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76 | |
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77 | ret = spd_sdram(); |
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78 | return ret; |
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79 | } |
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