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89 lines
2.4 KiB
C
89 lines
2.4 KiB
C
/*
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* pci.c -- WindRiver SBC8349 PCI board support.
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* Copyright (c) 2006 Wind River Systems, Inc.
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* Copyright (C) 2006-2009 Freescale Semiconductor, Inc.
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*
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* Based on MPC8349 PCI support but w/o PIB related code.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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*/
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#include <asm/mmu.h>
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#include <asm/io.h>
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#include <common.h>
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#include <mpc83xx.h>
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#include <pci.h>
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#include <i2c.h>
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#include <asm/fsl_i2c.h>
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DECLARE_GLOBAL_DATA_PTR;
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static struct pci_region pci1_regions[] = {
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{
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bus_start: CONFIG_SYS_PCI1_MEM_BASE,
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phys_start: CONFIG_SYS_PCI1_MEM_PHYS,
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size: CONFIG_SYS_PCI1_MEM_SIZE,
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flags: PCI_REGION_MEM | PCI_REGION_PREFETCH
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},
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{
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bus_start: CONFIG_SYS_PCI1_IO_BASE,
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phys_start: CONFIG_SYS_PCI1_IO_PHYS,
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size: CONFIG_SYS_PCI1_IO_SIZE,
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flags: PCI_REGION_IO
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},
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{
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bus_start: CONFIG_SYS_PCI1_MMIO_BASE,
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phys_start: CONFIG_SYS_PCI1_MMIO_PHYS,
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size: CONFIG_SYS_PCI1_MMIO_SIZE,
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flags: PCI_REGION_MEM
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},
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};
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/*
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* pci_init_board()
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*
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* NOTICE: PCI2 is not supported. There is only one
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* physical PCI slot on the board.
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*
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*/
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void
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pci_init_board(void)
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{
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volatile immap_t *immr = (volatile immap_t *)CONFIG_SYS_IMMR;
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volatile clk83xx_t *clk = (volatile clk83xx_t *)&immr->clk;
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volatile law83xx_t *pci_law = immr->sysconf.pcilaw;
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struct pci_region *reg[] = { pci1_regions };
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/* Enable all 8 PCI_CLK_OUTPUTS */
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clk->occr = 0xff000000;
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udelay(2000);
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/* Configure PCI Local Access Windows */
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pci_law[0].bar = CONFIG_SYS_PCI1_MEM_PHYS & LAWBAR_BAR;
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pci_law[0].ar = LAWAR_EN | LAWAR_SIZE_1G;
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pci_law[1].bar = CONFIG_SYS_PCI1_IO_PHYS & LAWBAR_BAR;
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pci_law[1].ar = LAWAR_EN | LAWAR_SIZE_4M;
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udelay(2000);
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mpc83xx_pci_init(1, reg, 0);
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}
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