diff options
| author | Wolfgang Denk <wd@denx.de> | 2008-01-09 11:27:02 +0100 |
|---|---|---|
| committer | Wolfgang Denk <wd@denx.de> | 2008-01-09 11:27:02 +0100 |
| commit | 0b4f57923024ccbdaa4436d6bcc958307dd597bd (patch) | |
| tree | 04525dae88a9ec015752725468b46c577ad4939d /board/freescale/mpc837xemds/pci.c | |
| parent | c1d16334091653de8eabcc9eb4f3447c98ba5506 (diff) | |
| parent | 6775c68683a53c7abc778774641aac6f833a2cbf (diff) | |
Merge branch 'master' of git://www.denx.de/git/u-boot-mpc83xx
Diffstat (limited to 'board/freescale/mpc837xemds/pci.c')
| -rw-r--r-- | board/freescale/mpc837xemds/pci.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/board/freescale/mpc837xemds/pci.c b/board/freescale/mpc837xemds/pci.c new file mode 100644 index 0000000000..ab909790e5 --- /dev/null +++ b/board/freescale/mpc837xemds/pci.c @@ -0,0 +1,65 @@ +/* + * Copyright (C) 2007 Freescale Semiconductor, Inc. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + */ + +#include <asm/mmu.h> +#include <asm/io.h> +#include <common.h> +#include <mpc83xx.h> +#include <pci.h> +#include <i2c.h> +#include <asm/fsl_i2c.h> + +#if defined(CONFIG_PCI) +static struct pci_region pci_regions[] = { + { + bus_start: CFG_PCI_MEM_BASE, + phys_start: CFG_PCI_MEM_PHYS, + size: CFG_PCI_MEM_SIZE, + flags: PCI_REGION_MEM | PCI_REGION_PREFETCH + }, + { + bus_start: CFG_PCI_MMIO_BASE, + phys_start: CFG_PCI_MMIO_PHYS, + size: CFG_PCI_MMIO_SIZE, + flags: PCI_REGION_MEM + }, + { + bus_start: CFG_PCI_IO_BASE, + phys_start: CFG_PCI_IO_PHYS, + size: CFG_PCI_IO_SIZE, + flags: PCI_REGION_IO + } +}; + +void pci_init_board(void) +{ + volatile immap_t *immr = (volatile immap_t *)CFG_IMMR; + volatile clk83xx_t *clk = (volatile clk83xx_t *)&immr->clk; + volatile law83xx_t *pci_law = immr->sysconf.pcilaw; + struct pci_region *reg[] = { pci_regions }; + + /* Enable all 5 PCI_CLK_OUTPUTS */ + clk->occr |= 0xf8000000; + udelay(2000); + + /* Configure PCI Local Access Windows */ + pci_law[0].bar = CFG_PCI_MEM_PHYS & LAWBAR_BAR; + pci_law[0].ar = LBLAWAR_EN | LBLAWAR_512MB; + + pci_law[1].bar = CFG_PCI_IO_PHYS & LAWBAR_BAR; + pci_law[1].ar = LBLAWAR_EN | LBLAWAR_1MB; + + udelay(2000); + + mpc83xx_pci_init(1, reg, 0); +} +#endif /* CONFIG_PCI */ |