| 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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