mirror of
https://github.com/torvalds/linux.git
synced 2024-11-16 17:12:06 +00:00
9ca04434bb
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>
59 lines
1.5 KiB
C
59 lines
1.5 KiB
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.
|
|
*/
|
|
#include <linux/kernel.h>
|
|
#include <linux/types.h>
|
|
#include <linux/init.h>
|
|
#include <linux/delay.h>
|
|
#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)
|
|
{
|
|
/*
|
|
* slot0: pin1-4 = irq5,6,7,8
|
|
* slot1: pin1-4 = irq6,7,8,5
|
|
* slot2: pin1-4 = irq7,8,5,6
|
|
* slot3: pin1-4 = irq8,5,6,7
|
|
*/
|
|
int irq = ((slot + pin - 1) & 0x3) + 5;
|
|
|
|
if ((slot | (pin - 1)) > 0x3) {
|
|
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;
|
|
}
|