summaryrefslogtreecommitdiffstats
path: root/kernel/arch/mips/pci/pci-lasat.c
diff options
context:
space:
mode:
Diffstat (limited to 'kernel/arch/mips/pci/pci-lasat.c')
-rw-r--r--kernel/arch/mips/pci/pci-lasat.c88
1 files changed, 88 insertions, 0 deletions
diff --git a/kernel/arch/mips/pci/pci-lasat.c b/kernel/arch/mips/pci/pci-lasat.c
new file mode 100644
index 000000000..40d2797d2
--- /dev/null
+++ b/kernel/arch/mips/pci/pci-lasat.c
@@ -0,0 +1,88 @@
+/*
+ * 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) 2000, 2001, 04 Keith M Wesolowski
+ */
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/pci.h>
+#include <linux/types.h>
+
+#include <asm/lasat/lasat.h>
+
+#include <irq.h>
+
+extern struct pci_ops nile4_pci_ops;
+extern struct pci_ops gt64xxx_pci0_ops;
+static struct resource lasat_pci_mem_resource = {
+ .name = "LASAT PCI MEM",
+ .start = 0x18000000,
+ .end = 0x19ffffff,
+ .flags = IORESOURCE_MEM,
+};
+
+static struct resource lasat_pci_io_resource = {
+ .name = "LASAT PCI IO",
+ .start = 0x1a000000,
+ .end = 0x1bffffff,
+ .flags = IORESOURCE_IO,
+};
+
+static struct pci_controller lasat_pci_controller = {
+ .mem_resource = &lasat_pci_mem_resource,
+ .io_resource = &lasat_pci_io_resource,
+};
+
+static int __init lasat_pci_setup(void)
+{
+ printk(KERN_DEBUG "PCI: starting\n");
+
+ if (IS_LASAT_200())
+ lasat_pci_controller.pci_ops = &nile4_pci_ops;
+ else
+ lasat_pci_controller.pci_ops = &gt64xxx_pci0_ops;
+
+ register_pci_controller(&lasat_pci_controller);
+
+ return 0;
+}
+
+arch_initcall(lasat_pci_setup);
+
+#define LASAT_IRQ_ETH1 (LASAT_IRQ_BASE + 0)
+#define LASAT_IRQ_ETH0 (LASAT_IRQ_BASE + 1)
+#define LASAT_IRQ_HDC (LASAT_IRQ_BASE + 2)
+#define LASAT_IRQ_COMP (LASAT_IRQ_BASE + 3)
+#define LASAT_IRQ_HDLC (LASAT_IRQ_BASE + 4)
+#define LASAT_IRQ_PCIA (LASAT_IRQ_BASE + 5)
+#define LASAT_IRQ_PCIB (LASAT_IRQ_BASE + 6)
+#define LASAT_IRQ_PCIC (LASAT_IRQ_BASE + 7)
+#define LASAT_IRQ_PCID (LASAT_IRQ_BASE + 8)
+
+int __init pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
+{
+ switch (slot) {
+ case 1:
+ case 2:
+ case 3:
+ return LASAT_IRQ_PCIA + (((slot-1) + (pin-1)) % 4);
+ case 4:
+ return LASAT_IRQ_ETH1; /* Ethernet 1 (LAN 2) */
+ case 5:
+ return LASAT_IRQ_ETH0; /* Ethernet 0 (LAN 1) */
+ case 6:
+ return LASAT_IRQ_HDC; /* IDE controller */
+ default:
+ return 0xff; /* Illegal */
+ }
+
+ return -1;
+}
+
+/* Do platform specific device initialization at pci_enable_device() time */
+int pcibios_plat_dev_init(struct pci_dev *dev)
+{
+ return 0;
+}