From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip! --- arch/mips/pci/ops-gt64111.c | 100 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 100 insertions(+) create mode 100644 arch/mips/pci/ops-gt64111.c (limited to 'arch/mips/pci/ops-gt64111.c') diff --git a/arch/mips/pci/ops-gt64111.c b/arch/mips/pci/ops-gt64111.c new file mode 100644 index 00000000000..c5b0fc184c2 --- /dev/null +++ b/arch/mips/pci/ops-gt64111.c @@ -0,0 +1,100 @@ +/* + * 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. + * + * Copyright (C) 1995, 1996, 1997, 2002 by Ralf Baechle + * Copyright (C) 2001, 2002, 2003 by Liam Davies (ldavies@agile.tv) + */ +#include +#include +#include +#include + +#include +#include +#include + +#include + +/* + * Accessing device 31 hangs the GT64120. Not sure if this will also hang + * the GT64111, let's be paranoid for now. + */ +static inline int pci_range_ck(struct pci_bus *bus, unsigned int devfn) +{ + if (bus->number == 0 && devfn == PCI_DEVFN(31, 0)) + return -1; + + return 0; +} + +static int gt64111_pci_read_config(struct pci_bus *bus, unsigned int devfn, + int where, int size, u32 * val) +{ + if (pci_range_ck(bus, devfn)) + return PCIBIOS_DEVICE_NOT_FOUND; + + switch (size) { + case 4: + PCI_CFG_SET(devfn, where); + *val = GALILEO_INL(GT_PCI0_CFGDATA_OFS); + return PCIBIOS_SUCCESSFUL; + + case 2: + PCI_CFG_SET(devfn, (where & ~0x3)); + *val = GALILEO_INL(GT_PCI0_CFGDATA_OFS) + >> ((where & 3) * 8); + return PCIBIOS_SUCCESSFUL; + + case 1: + PCI_CFG_SET(devfn, (where & ~0x3)); + *val = GALILEO_INL(GT_PCI0_CFGDATA_OFS) + >> ((where & 3) * 8); + return PCIBIOS_SUCCESSFUL; + } + + return PCIBIOS_BAD_REGISTER_NUMBER; +} + +static int gt64111_pci_write_config(struct pci_bus *bus, unsigned int devfn, + int where, int size, u32 val) +{ + u32 tmp; + + if (pci_range_ck(bus, devfn)) + return PCIBIOS_DEVICE_NOT_FOUND; + + switch (size) { + case 4: + PCI_CFG_SET(devfn, where); + GALILEO_OUTL(val, GT_PCI0_CFGDATA_OFS); + + return PCIBIOS_SUCCESSFUL; + + case 2: + PCI_CFG_SET(devfn, (where & ~0x3)); + tmp = GALILEO_INL(GT_PCI0_CFGDATA_OFS); + tmp &= ~(0xffff << ((where & 0x3) * 8)); + tmp |= (val << ((where & 0x3) * 8)); + GALILEO_OUTL(tmp, GT_PCI0_CFGDATA_OFS); + + return PCIBIOS_SUCCESSFUL; + + case 1: + PCI_CFG_SET(devfn, (where & ~0x3)); + tmp = GALILEO_INL(GT_PCI0_CFGDATA_OFS); + tmp &= ~(0xff << ((where & 0x3) * 8)); + tmp |= (val << ((where & 0x3) * 8)); + GALILEO_OUTL(tmp, GT_PCI0_CFGDATA_OFS); + + return PCIBIOS_SUCCESSFUL; + } + + return PCIBIOS_BAD_REGISTER_NUMBER; +} + +struct pci_ops gt64111_pci_ops = { + .read = gt64111_pci_read_config, + .write = gt64111_pci_write_config, +}; -- cgit v1.2.3