diff options
Diffstat (limited to 'arch/sh/drivers/pci/pci-sh7780.c')
| -rw-r--r-- | arch/sh/drivers/pci/pci-sh7780.c | 50 |
1 files changed, 31 insertions, 19 deletions
diff --git a/arch/sh/drivers/pci/pci-sh7780.c b/arch/sh/drivers/pci/pci-sh7780.c index 07c5529a273..f02d9dfcf25 100644 --- a/arch/sh/drivers/pci/pci-sh7780.c +++ b/arch/sh/drivers/pci/pci-sh7780.c @@ -1,19 +1,12 @@ /* - * Low-Level PCI Support for the SH7780 + * Low-Level PCI Support for the SH7780 * - * Dustin McIntire (dustin@sensoria.com) - * Derived from arch/i386/kernel/pci-*.c which bore the message: - * (c) 1999--2000 Martin Mares <mj@ucw.cz> - * - * Ported to the new API by Paul Mundt <lethal@linux-sh.org> - * With cleanup by Paul van Gool <pvangool@mimotech.com> - * - * May be copied or modified under the terms of the GNU General Public - * License. See linux/COPYING for more information. + * Copyright (C) 2005 - 2009 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. */ -#undef DEBUG - #include <linux/types.h> #include <linux/kernel.h> #include <linux/init.h> @@ -117,13 +110,8 @@ int __init pcibios_init_platform(void) pci_cache_line_size = pci_read_reg(chan, SH7780_PCICLS) / 4; - /* set the command/status bits to: - * Wait Cycle Control + Parity Enable + Bus Master + - * Mem space enable - */ - pci_write_reg(chan, 0x00000046, SH7780_PCICMD); - - /* Set IO and Mem windows to local address + /* + * Set IO and Mem windows to local address * Make PCI and local address the same for easy 1 to 1 mapping */ pci_write_reg(chan, sh7780_pci_map.window0.size - 0xfffff, SH4_PCILSR0); @@ -131,9 +119,33 @@ int __init pcibios_init_platform(void) pci_write_reg(chan, sh7780_pci_map.window0.base, SH4_PCILAR0); pci_write_reg(chan, sh7780_pci_map.window0.base, SH7780_PCIMBAR0); + pci_write_reg(chan, 0x0000380f, SH4_PCIAINTM); + + /* Set up standard PCI config registers */ + __raw_writew(0xFB00, chan->reg_base + SH7780_PCISTATUS); + __raw_writew(0x0047, chan->reg_base + SH7780_PCICMD); + __raw_writew(0x1912, chan->reg_base + SH7780_PCISVID); + __raw_writew(0x0001, chan->reg_base + SH7780_PCISID); + + __raw_writeb(0x00, chan->reg_base + SH7780_PCIPIF); + /* Apply any last-minute PCIC fixups */ pci_fixup_pcic(chan); + pci_write_reg(chan, 0xfd000000, SH7780_PCIMBR0); + pci_write_reg(chan, 0x00fc0000, SH7780_PCIMBMR0); + +#ifdef CONFIG_32BIT + pci_write_reg(chan, 0xc0000000, SH7780_PCIMBR2); + pci_write_reg(chan, 0x20000000 - SH7780_PCI_IO_SIZE, SH7780_PCIMBMR2); +#endif + + /* Set IOBR for windows containing area specified in pci.h */ + pci_write_reg(chan, chan->io_resource->start & ~(SH7780_PCI_IO_SIZE-1), + SH7780_PCIIOBR); + pci_write_reg(chan, ((SH7780_PCI_IO_SIZE-1) & (7<<18)), + SH7780_PCIIOBMR); + /* SH7780 init done, set central function init complete */ /* use round robin mode to stop a device starving/overruning */ word = SH4_PCICR_PREFIX | SH4_PCICR_CFIN | SH4_PCICR_FTO; |