[people/ms/u-boot.git] / board / freescale / mpc837xemds / pci.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: CONFIG_SYS_PCI_MEM_BASE,
		phys_start: CONFIG_SYS_PCI_MEM_PHYS,
		size: CONFIG_SYS_PCI_MEM_SIZE,
		flags: PCI_REGION_MEM | PCI_REGION_PREFETCH
	},
	{
		bus_start: CONFIG_SYS_PCI_MMIO_BASE,
		phys_start: CONFIG_SYS_PCI_MMIO_PHYS,
		size: CONFIG_SYS_PCI_MMIO_SIZE,
		flags: PCI_REGION_MEM
	},
	{
		bus_start: CONFIG_SYS_PCI_IO_BASE,
		phys_start: CONFIG_SYS_PCI_IO_PHYS,
		size: CONFIG_SYS_PCI_IO_SIZE,
		flags: PCI_REGION_IO
	}
};

void pci_init_board(void)
{
	volatile immap_t *immr = (volatile immap_t *)CONFIG_SYS_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 = CONFIG_SYS_PCI_MEM_PHYS & LAWBAR_BAR;
	pci_law[0].ar = LBLAWAR_EN | LBLAWAR_512MB;

	pci_law[1].bar = CONFIG_SYS_PCI_IO_PHYS & LAWBAR_BAR;
	pci_law[1].ar = LBLAWAR_EN | LBLAWAR_1MB;

	udelay(2000);

	mpc83xx_pci_init(1, reg, 0);
}
#endif /* CONFIG_PCI */
Commit	Line	Data
19580e66 DL	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 <asm/mmu.h>
	14	#include <asm/io.h>
	15	#include <common.h>
	16	#include <mpc83xx.h>
	17	#include <pci.h>
	18	#include <i2c.h>
	19	#include <asm/fsl_i2c.h>
	20
	21	#if defined(CONFIG_PCI)
	22	static struct pci_region pci_regions[] = {
	23	{
6d0f6bcf JCPV	24	bus_start: CONFIG_SYS_PCI_MEM_BASE,
	25	phys_start: CONFIG_SYS_PCI_MEM_PHYS,
	26	size: CONFIG_SYS_PCI_MEM_SIZE,
19580e66 DL	27	flags: PCI_REGION_MEM \| PCI_REGION_PREFETCH
	28	},
	29	{
6d0f6bcf JCPV	30	bus_start: CONFIG_SYS_PCI_MMIO_BASE,
	31	phys_start: CONFIG_SYS_PCI_MMIO_PHYS,
	32	size: CONFIG_SYS_PCI_MMIO_SIZE,
19580e66 DL	33	flags: PCI_REGION_MEM
	34	},
	35	{
6d0f6bcf JCPV	36	bus_start: CONFIG_SYS_PCI_IO_BASE,
	37	phys_start: CONFIG_SYS_PCI_IO_PHYS,
	38	size: CONFIG_SYS_PCI_IO_SIZE,
19580e66 DL	39	flags: PCI_REGION_IO
	40	}
	41	};
	42
	43	void pci_init_board(void)
	44	{
6d0f6bcf	45	volatile immap_t immr = (volatile immap_t )CONFIG_SYS_IMMR;
19580e66 DL	46	volatile clk83xx_t clk = (volatile clk83xx_t )&immr->clk;
	47	volatile law83xx_t *pci_law = immr->sysconf.pcilaw;
	48	struct pci_region *reg[] = { pci_regions };
	49
	50	/* Enable all 5 PCI_CLK_OUTPUTS */
	51	clk->occr \|= 0xf8000000;
	52	udelay(2000);
	53
	54	/* Configure PCI Local Access Windows */
6d0f6bcf	55	pci_law[0].bar = CONFIG_SYS_PCI_MEM_PHYS & LAWBAR_BAR;
19580e66 DL	56	pci_law[0].ar = LBLAWAR_EN \| LBLAWAR_512MB;
19580e66 DL	57
6d0f6bcf	58	pci_law[1].bar = CONFIG_SYS_PCI_IO_PHYS & LAWBAR_BAR;
19580e66 DL	59	pci_law[1].ar = LBLAWAR_EN \| LBLAWAR_1MB;
	60
	61	udelay(2000);
	62
	63	mpc83xx_pci_init(1, reg, 0);
	64	}
	65	#endif /* CONFIG_PCI */