1 files changed, 163 insertions, 0 deletions

diff --git a/arch/mips/mips-boards/generic/pci.c b/arch/mips/mips-boards/generic/pci.c
new file mode 100644
index 000000000000..92c34bda02ae
--- /dev/null
+++ b/arch/mips/mips-boards/generic/pci.c
@@ -0,0 +1,163 @@
+/*
+ * Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 1999, 2000 MIPS Technologies, Inc.  All rights reserved.
+ *
+ * Copyright (C) 2004 by Ralf Baechle (ralf@linux-mips.org)
+ *
+ *  This program is free software; you can distribute it and/or modify it
+ *  under the terms of the GNU General Public License (Version 2) as
+ *  published by the Free Software Foundation.
+ *
+ *  This program is distributed in the hope it will be useful, but WITHOUT
+ *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ *  for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * MIPS boards specific PCI support.
+ */
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+
+#include <asm/mips-boards/generic.h>
+#include <asm/gt64120.h>
+#include <asm/mips-boards/bonito64.h>
+#include <asm/mips-boards/msc01_pci.h>
+#ifdef CONFIG_MIPS_MALTA
+#include <asm/mips-boards/malta.h>
+#endif
+
+static struct resource bonito64_mem_resource = {
+        .name   = "Bonito PCI MEM",
+        .start  = 0x10000000UL,
+        .end    = 0x1bffffffUL,
+        .flags  = IORESOURCE_MEM,
+};
+
+static struct resource bonito64_io_resource = {
+        .name   = "Bonito IO MEM",
+        .start  = 0x00002000UL, /* avoid conflicts with YAMON allocated I/O addresses */
+        .end    = 0x000fffffUL,
+        .flags  = IORESOURCE_IO,
+};
+
+static struct resource gt64120_mem_resource = {
+        .name   = "GT64120 PCI MEM",
+        .start  = 0x10000000UL,
+        .end    = 0x1bdfffffUL,
+        .flags  = IORESOURCE_MEM,
+};
+
+static struct resource gt64120_io_resource = {
+        .name   = "GT64120 IO MEM",
+#ifdef CONFIG_MIPS_ATLAS
+        .start  = 0x18000000UL,
+        .end    = 0x181fffffUL,
+#endif
+#ifdef CONFIG_MIPS_MALTA
+        .start  = 0x00002000UL,
+        .end    = 0x001fffffUL,
+#endif
+        .flags  = IORESOURCE_IO,
+};
+
+static struct resource msc_mem_resource = {
+        .name   = "MSC PCI MEM",
+        .start  = 0x10000000UL,
+        .end    = 0x1fffffffUL,
+        .flags  = IORESOURCE_MEM,
+};
+
+static struct resource msc_io_resource = {
+        .name   = "MSC IO MEM",
+        .start  = 0x00002000UL,
+        .end    = 0x007fffffUL,
+        .flags  = IORESOURCE_IO,
+};
+
+extern struct pci_ops bonito64_pci_ops;
+extern struct pci_ops gt64120_pci_ops;
+extern struct pci_ops msc_pci_ops;
+
+static struct pci_controller bonito64_controller = {
+        .pci_ops        = &bonito64_pci_ops,
+        .io_resource    = &bonito64_io_resource,
+        .mem_resource   = &bonito64_mem_resource,
+        .mem_offset     = 0x10000000UL,
+        .io_offset      = 0x00000000UL,
+};
+
+static struct pci_controller gt64120_controller = {
+        .pci_ops        = &gt64120_pci_ops,
+        .io_resource    = &gt64120_io_resource,
+        .mem_resource   = &gt64120_mem_resource,
+        .mem_offset     = 0x00000000UL,
+        .io_offset      = 0x00000000UL,
+};
+
+static struct pci_controller  msc_controller = {
+        .pci_ops        = &msc_pci_ops,
+        .io_resource    = &msc_io_resource,
+        .mem_resource   = &msc_mem_resource,
+        .mem_offset     = 0x10000000UL,
+        .io_offset      = 0x00000000UL,
+};
+
+static int __init pcibios_init(void)
+{
+        struct pci_controller *controller;
+
+        switch (mips_revision_corid) {
+        case MIPS_REVISION_CORID_QED_RM5261:
+        case MIPS_REVISION_CORID_CORE_LV:
+        case MIPS_REVISION_CORID_CORE_FPGA:
+        case MIPS_REVISION_CORID_CORE_FPGAR2:
+                /*
+                 * Due to a bug in the Galileo system controller, we need
+                 * to setup the PCI BAR for the Galileo internal registers.
+                 * This should be done in the bios/bootprom and will be
+                 * fixed in a later revision of YAMON (the MIPS boards
+                 * boot prom).
+                 */
+                GT_WRITE(GT_PCI0_CFGADDR_OFS,
+                         (0 << GT_PCI0_CFGADDR_BUSNUM_SHF) | /* Local bus */
+                         (0 << GT_PCI0_CFGADDR_DEVNUM_SHF) | /* GT64120 dev */
+                         (0 << GT_PCI0_CFGADDR_FUNCTNUM_SHF) | /* Function 0*/
+                         ((0x20/4) << GT_PCI0_CFGADDR_REGNUM_SHF) | /* BAR 4*/
+                         GT_PCI0_CFGADDR_CONFIGEN_BIT );
+
+                /* Perform the write */
+                GT_WRITE(GT_PCI0_CFGDATA_OFS, CPHYSADDR(MIPS_GT_BASE));
+
+                controller = &gt64120_controller;
+                break;
+
+        case MIPS_REVISION_CORID_BONITO64:
+        case MIPS_REVISION_CORID_CORE_20K:
+        case MIPS_REVISION_CORID_CORE_EMUL_BON:
+                controller = &bonito64_controller;
+                break;
+
+        case MIPS_REVISION_CORID_CORE_MSC:
+        case MIPS_REVISION_CORID_CORE_FPGA2:
+        case MIPS_REVISION_CORID_CORE_EMUL_MSC:
+                controller = &msc_controller;
+                break;
+        default:
+                return 1;
+        }
+
+        ioport_resource.end = controller->io_resource->end;
+
+        register_pci_controller (controller);
+
+        return 0;
+}
+
+early_initcall(pcibios_init);