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Commit 9ca04434 authored by Nobuhiro Iwamatsu's avatar Nobuhiro Iwamatsu Committed by Paul Mundt
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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: default avatarNobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent 0d6ae8fa

arch/sh/drivers/pci/fixups-landisk.c

+26 −2
Original line number Diff line number Diff line 
/*

 * 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;

}