u-boot/board/freescale/mpc837xemds/pci.c
Dave Liu 19580e660c mpc83xx: Add the support of MPC837xEMDS board
The MPC837xEMDS board support:
* DDR2 400MHz hardcoded and SPD init
* Local bus NOR Flash
* I2C, UART, MII and RTC
* eTSEC RGMII
* PCI host

Signed-off-by: Dave Liu <daveliu@freescale.com>
2008-01-08 09:55:39 -06:00

65 lines
1.6 KiB
C

/*
* 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 */