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Diffstat (limited to 'target/linux/adm5120-2.6/files/arch/mips/pci/pci-adm5120.c')
-rw-r--r--target/linux/adm5120-2.6/files/arch/mips/pci/pci-adm5120.c93
1 files changed, 93 insertions, 0 deletions
diff --git a/target/linux/adm5120-2.6/files/arch/mips/pci/pci-adm5120.c b/target/linux/adm5120-2.6/files/arch/mips/pci/pci-adm5120.c
new file mode 100644
index 0000000000..a8585747ee
--- /dev/null
+++ b/target/linux/adm5120-2.6/files/arch/mips/pci/pci-adm5120.c
@@ -0,0 +1,93 @@
+/*
+ * Copyright (C) ADMtek Incorporated.
+ * Copyright (C) 2005 Jeroen Vreeken (pe1rxq@amsat.org)
+ */
+
+#include <linux/autoconf.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+
+extern struct pci_ops adm5120_pci_ops;
+
+#define ADM5120_CODE 0x12000000
+#define ADM5120_CODE_PQFP 0x20000000
+
+#define PCI_CMM_IOACC_EN 0x1
+#define PCI_CMM_MEMACC_EN 0x2
+#define PCI_CMM_MASTER_EN 0x4
+#define PCI_CMM_DEF \
+ (PCI_CMM_IOACC_EN | PCI_CMM_MEMACC_EN | PCI_CMM_MASTER_EN)
+
+#define PCI_DEF_CACHE_LINE_SZ 4
+
+
+struct resource pci_io_resource = {
+ "PCI IO space",
+ 0x11500000,
+ 0x115ffff0-1,
+ IORESOURCE_IO
+};
+
+struct resource pci_mem_resource = {
+ "PCI memory space",
+ 0x11400000,
+ 0x11500000,
+ IORESOURCE_MEM
+};
+
+static struct pci_controller adm5120_controller = {
+ .pci_ops = &adm5120_pci_ops,
+ .io_resource = &pci_io_resource,
+ .mem_resource = &pci_mem_resource,
+};
+
+int __init pcibios_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
+{
+ if (slot < 2 || slot > 4)
+ return -1;
+ return slot + 4;
+}
+
+static void adm5120_pci_fixup(struct pci_dev *dev)
+{
+ if (dev->devfn == 0) {
+ pci_write_config_word(dev, PCI_COMMAND, PCI_CMM_DEF);
+ pci_write_config_byte(dev, PCI_CACHE_LINE_SIZE,
+ PCI_DEF_CACHE_LINE_SZ);
+ pci_write_config_dword(dev, PCI_BASE_ADDRESS_0, 0);
+ pci_write_config_dword(dev, PCI_BASE_ADDRESS_1, 0);
+ }
+}
+
+DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, adm5120_pci_fixup);
+
+
+int pcibios_plat_dev_init(struct pci_dev *dev)
+{
+ return 0;
+}
+
+static int __init adm5120_pci_setup(void)
+{
+
+ if ((*(volatile u32 *)(KSEG1ADDR(ADM5120_CODE))) & ADM5120_CODE_PQFP) {
+ printk("System has no PCI BIOS\n");
+ return 1;
+ }
+ printk("System has PCI BIOS\n");
+
+ /* Avoid ISA compat ranges. */
+ PCIBIOS_MIN_IO = 0x00000000;
+ PCIBIOS_MIN_MEM = 0x00000000;
+
+ /* Set I/O resource limits. */
+ ioport_resource.end = 0x1fffffff;
+ iomem_resource.end = 0xffffffff;
+
+ register_pci_controller(&adm5120_controller);
+ return 0;
+}
+
+subsys_initcall(adm5120_pci_setup);