diff options
Diffstat (limited to 'arch/sh/drivers/pci/fixups-rts7751r2d.c')
| -rw-r--r-- | arch/sh/drivers/pci/fixups-rts7751r2d.c | 43 |
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 00000000000..0c590fc7a08 --- /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; +} |