1 files changed, 43 insertions, 0 deletions
diff --git a/arch/sh/drivers/pci/fixups-rts7751r2d.c b/arch/sh/drivers/pci/fixups-rts7751r2d.c
new file mode 100644
index 000000000000..0c590fc7a081
--- /dev/null
+++ b/arch/sh/drivers/pci/fixups-rts7751r2d.c
@@ -0,0 +1,43 @@
+/*
+ * arch/sh/drivers/pci/fixups-rts7751r2d.c
+ *
+ * RTS7751R2D PCI fixups
+ *
+ * Copyright (C) 2003  Lineo uSolutions, Inc.
+ * Copyright (C) 2004  Paul Mundt
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include "pci-sh7751.h"
+#include <asm/io.h>
+
+#define PCIMCR_MRSET_OFF	0xBFFFFFFF
+#define PCIMCR_RFSH_OFF		0xFFFFFFFB
+
+int pci_fixup_pcic(void)
+{
+	unsigned long bcr1, mcr;
+
+	bcr1 = inl(SH7751_BCR1);
+	bcr1 |= 0x40080000;	/* Enable Bit 19 BREQEN, set PCIC to slave */
+	outl(bcr1, PCI_REG(SH7751_PCIBCR1));
+
+	/* Enable all interrupts, so we known what to fix */
+	outl(0x0000c3ff, PCI_REG(SH7751_PCIINTM));
+	outl(0x0000380f, PCI_REG(SH7751_PCIAINTM));
+
+	outl(0xfb900047, PCI_REG(SH7751_PCICONF1));
+	outl(0xab000001, PCI_REG(SH7751_PCICONF4));
+
+	mcr = inl(SH7751_MCR);
+	mcr = (mcr & PCIMCR_MRSET_OFF) & PCIMCR_RFSH_OFF;
+	outl(mcr, PCI_REG(SH7751_PCIMCR));
+
+	outl(0x0c000000, PCI_REG(SH7751_PCICONF5));
+	outl(0xd0000000, PCI_REG(SH7751_PCICONF6));
+	outl(0x0c000000, PCI_REG(SH7751_PCILAR0));
+	outl(0x00000000, PCI_REG(SH7751_PCILAR1));
+	return 0;
+}