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Diffstat (limited to 'arch/sh/drivers/pci/fixups-lboxre2.c')
-rw-r--r--arch/sh/drivers/pci/fixups-lboxre2.c41
1 files changed, 41 insertions, 0 deletions
diff --git a/arch/sh/drivers/pci/fixups-lboxre2.c b/arch/sh/drivers/pci/fixups-lboxre2.c
new file mode 100644
index 000000000000..40b19bdfb891
--- /dev/null
+++ b/arch/sh/drivers/pci/fixups-lboxre2.c
@@ -0,0 +1,41 @@
+/*
+ * arch/sh/drivers/pci/fixups-lboxre2.c
+ *
+ * L-BOX RE2 PCI fixups
+ *
+ * Copyright (C) 2007 Nobuhiro Iwamatsu
+ *
+ * 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-sh4.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 */
+ pci_write_reg(bcr1, SH4_PCIBCR1);
+
+ /* Enable all interrupts, so we known what to fix */
+ pci_write_reg(0x0000c3ff, SH4_PCIINTM);
+ pci_write_reg(0x0000380f, SH4_PCIAINTM);
+ pci_write_reg(0xfb900047, SH7751_PCICONF1);
+ pci_write_reg(0xab000001, SH7751_PCICONF4);
+
+ mcr = inl(SH7751_MCR);
+ mcr = (mcr & PCIMCR_MRSET_OFF) & PCIMCR_RFSH_OFF;
+ pci_write_reg(mcr, SH4_PCIMCR);
+
+ pci_write_reg(0x0c000000, SH7751_PCICONF5);
+ pci_write_reg(0xd0000000, SH7751_PCICONF6);
+ pci_write_reg(0x0c000000, SH4_PCILAR0);
+ pci_write_reg(0x00000000, SH4_PCILAR1);
+
+ return 0;
+}