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7600d47b8f
On the MPC85xx CDS we have two issues: 1. The device tree fixup code did not check to see if the property we are trying to update is actually found. Its possible that it would update random memory starting at 0. 2. Newer Linux kernel's have moved the location of the PCI nodes to be sibilings of the soc node and not children. The explicit PATH to the PCI node would not be found for these device trees. Add the ability to handle both paths. In the future we shouldn't handle such fixups by explicit path. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
83 lines
1.9 KiB
C
83 lines
1.9 KiB
C
/*
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* Copyright 2004 Freescale Semiconductor.
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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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#include <common.h>
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#if defined(CONFIG_OF_FLAT_TREE)
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#include <ft_build.h>
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#include "cadmus.h"
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extern void ft_cpu_setup(void *blob, bd_t *bd);
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static void cds_pci_fixup(void *blob)
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{
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int len;
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u32 *map;
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int slot;
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int i;
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map = ft_get_prop(blob, "/" OF_SOC "/pci@8000/interrupt-map", &len);
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if (!map)
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map = ft_get_prop(blob, "/" OF_PCI "/interrupt-map", &len);
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if (map) {
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len /= sizeof(u32);
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slot = get_pci_slot();
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for (i=0;i<len;i+=7) {
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/* We rotate the interrupt pins so that the mapping
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* changes depending on the slot the carrier card is in.
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*/
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map[3] = ((map[3] + slot - 2) % 4) + 1;
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map+=7;
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}
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} else {
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printf("*** Warning - No PCI node found\n");
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}
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}
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#endif
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#if defined(CONFIG_OF_FLAT_TREE) && defined(CONFIG_OF_BOARD_SETUP)
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void
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ft_board_setup(void *blob, bd_t *bd)
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{
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u32 *p;
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int len;
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#ifdef CONFIG_PCI
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ft_pci_setup(blob, bd);
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#endif
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ft_cpu_setup(blob, bd);
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p = ft_get_prop(blob, "/memory/reg", &len);
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if (p != NULL) {
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*p++ = cpu_to_be32(bd->bi_memstart);
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*p = cpu_to_be32(bd->bi_memsize);
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}
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cds_pci_fixup(blob);
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}
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#endif
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