@@ -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;
+}