1 /* 2 * Copyright (C) 2007 Freescale Semiconductor, Inc. 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 13 #include <common.h> 14 #include <mpc83xx.h> 15 #include <pci.h> 16 17 #if defined(CONFIG_PCI) 18 static struct pci_region pci_regions[] = { 19 { 20 bus_start: CONFIG_SYS_PCI_MEM_BASE, 21 phys_start: CONFIG_SYS_PCI_MEM_PHYS, 22 size: CONFIG_SYS_PCI_MEM_SIZE, 23 flags: PCI_REGION_MEM | PCI_REGION_PREFETCH 24 }, 25 { 26 bus_start: CONFIG_SYS_PCI_MMIO_BASE, 27 phys_start: CONFIG_SYS_PCI_MMIO_PHYS, 28 size: CONFIG_SYS_PCI_MMIO_SIZE, 29 flags: PCI_REGION_MEM 30 }, 31 { 32 bus_start: CONFIG_SYS_PCI_IO_BASE, 33 phys_start: CONFIG_SYS_PCI_IO_PHYS, 34 size: CONFIG_SYS_PCI_IO_SIZE, 35 flags: PCI_REGION_IO 36 } 37 }; 38 39 void pci_init_board(void) 40 { 41 volatile immap_t *immr = (volatile immap_t *)CONFIG_SYS_IMMR; 42 volatile clk83xx_t *clk = (volatile clk83xx_t *)&immr->clk; 43 volatile law83xx_t *pci_law = immr->sysconf.pcilaw; 44 struct pci_region *reg[] = { pci_regions }; 45 46 /* Enable all 5 PCI_CLK_OUTPUTS */ 47 clk->occr |= 0xf8000000; 48 udelay(2000); 49 50 /* Configure PCI Local Access Windows */ 51 pci_law[0].bar = CONFIG_SYS_PCI_MEM_PHYS & LAWBAR_BAR; 52 pci_law[0].ar = LBLAWAR_EN | LBLAWAR_512MB; 53 54 pci_law[1].bar = CONFIG_SYS_PCI_IO_PHYS & LAWBAR_BAR; 55 pci_law[1].ar = LBLAWAR_EN | LBLAWAR_1MB; 56 57 mpc83xx_pci_init(1, reg, 0); 58 } 59 #endif /* CONFIG_PCI */ 60