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sh: pci: Add pci_fixup_pcic to pci of landisk 

This adds a pci setting revision for landisk.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Nobuhiro Iwamatsu 2011-01-07 03:02:11 +00:00 committed by Paul Mundt
parent 0d6ae8fa94
commit 9ca04434bb
1 changed files with 26 additions and 2 deletions
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28
arch/sh/drivers/pci/fixups-landisk.c
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@ -1,9 +1,10 @@
/*
* arch/sh/drivers/pci/ops-landisk.c
* arch/sh/drivers/pci/fixups-landisk.c
*
* PCI initialization for the I-O DATA Device, Inc. LANDISK board
*
* Copyright (C) 2006 kogiidena
* Copyright (C) 2010 Nobuhiro Iwamatsu
*
* May be copied or modified under the terms of the GNU General Public
* License. See linux/COPYING for more information.
@ -15,6 +16,9 @@
#include <linux/pci.h>
#include "pci-sh4.h"
#define PCIMCR_MRSET_OFF 0xBFFFFFFF
#define PCIMCR_RFSH_OFF 0xFFFFFFFB
int pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin)
{
/*
@ -26,9 +30,29 @@ int pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin)
int irq = ((slot + pin - 1) & 0x3) + 5;
if ((slot | (pin - 1)) > 0x3) {
printk("PCI: Bad IRQ mapping request for slot %d pin %c\n",
printk(KERN_WARNING "PCI: Bad IRQ mapping request for slot %d pin %c\n",
slot, pin - 1 + 'A');
return -1;
}
return irq;
}
int pci_fixup_pcic(struct pci_channel *chan)
{
unsigned long bcr1, mcr;
bcr1 = __raw_readl(SH7751_BCR1);
bcr1 |= 0x40080000; /* Enable Bit 19 BREQEN, set PCIC to slave */
pci_write_reg(chan, bcr1, SH4_PCIBCR1);
mcr = __raw_readl(SH7751_MCR);
mcr = (mcr & PCIMCR_MRSET_OFF) & PCIMCR_RFSH_OFF;
pci_write_reg(chan, mcr, SH4_PCIMCR);
pci_write_reg(chan, 0x0c000000, SH7751_PCICONF5);
pci_write_reg(chan, 0xd0000000, SH7751_PCICONF6);
pci_write_reg(chan, 0x0c000000, SH4_PCILAR0);
pci_write_reg(chan, 0x00000000, SH4_PCILAR1);
return 0;
}