MIPS: Alchemy: Redo PCI as platform driver

[sfrench/cifs-2.6.git] / arch / mips / alchemy / devboards / db1x00 / platform.c

diff --git a/arch/mips/alchemy/devboards/db1x00/platform.c b/arch/mips/alchemy/devboards/db1x00/platform.c
index ef8017f23cdc6da5f6afab1f2c66df547a58b9b2..9030108928a47a309a9d515e0ecdaa0bf0a61e96 100644 (file)
--- a/arch/mips/alchemy/devboards/db1x00/platform.c
+++ b/arch/mips/alchemy/devboards/db1x00/platform.c
@@ -25,6 +25,8 @@
 #include <asm/mach-db1x00/bcsr.h>
 #include "../platform.h"
 
+struct pci_dev;
+
 /* DB1xxx PCMCIA interrupt sources:
  * CD0/1       GPIO0/3
  * STSCHG0/1   GPIO1/4
@@ -85,6 +87,127 @@
 #endif
 #endif
 
+#ifdef CONFIG_PCI
+#ifdef CONFIG_MIPS_DB1500
+static int db1xxx_map_pci_irq(const struct pci_dev *d, u8 slot, u8 pin)
+{
+       if ((slot < 12) || (slot > 13) || pin == 0)
+               return -1;
+       if (slot == 12)
+               return (pin == 1) ? AU1500_PCI_INTA : 0xff;
+       if (slot == 13) {
+               switch (pin) {
+               case 1: return AU1500_PCI_INTA;
+               case 2: return AU1500_PCI_INTB;
+               case 3: return AU1500_PCI_INTC;
+               case 4: return AU1500_PCI_INTD;
+               }
+       }
+       return -1;
+}
+#endif
+
+#ifdef CONFIG_MIPS_DB1550
+static int db1xxx_map_pci_irq(const struct pci_dev *d, u8 slot, u8 pin)
+{
+       if ((slot < 11) || (slot > 13) || pin == 0)
+               return -1;
+       if (slot == 11)
+               return (pin == 1) ? AU1550_PCI_INTC : 0xff;
+       if (slot == 12) {
+               switch (pin) {
+               case 1: return AU1550_PCI_INTB;
+               case 2: return AU1550_PCI_INTC;
+               case 3: return AU1550_PCI_INTD;
+               case 4: return AU1550_PCI_INTA;
+               }
+       }
+       if (slot == 13) {
+               switch (pin) {
+               case 1: return AU1550_PCI_INTA;
+               case 2: return AU1550_PCI_INTB;
+               case 3: return AU1550_PCI_INTC;
+               case 4: return AU1550_PCI_INTD;
+               }
+       }
+       return -1;
+}
+#endif
+
+#ifdef CONFIG_MIPS_BOSPORUS
+static int db1xxx_map_pci_irq(const struct pci_dev *d, u8 slot, u8 pin)
+{
+       if ((slot < 11) || (slot > 13) || pin == 0)
+               return -1;
+       if (slot == 12)
+               return (pin == 1) ? AU1500_PCI_INTA : 0xff;
+       if (slot == 11) {
+               switch (pin) {
+               case 1: return AU1500_PCI_INTA;
+               case 2: return AU1500_PCI_INTB;
+               default: return 0xff;
+               }
+       }
+       if (slot == 13) {
+               switch (pin) {
+               case 1: return AU1500_PCI_INTA;
+               case 2: return AU1500_PCI_INTB;
+               case 3: return AU1500_PCI_INTC;
+               case 4: return AU1500_PCI_INTD;
+               }
+       }
+       return -1;
+}
+#endif
+
+#ifdef CONFIG_MIPS_MIRAGE
+static int db1xxx_map_pci_irq(const struct pci_dev *d, u8 slot, u8 pin)
+{
+       if ((slot < 11) || (slot > 13) || pin == 0)
+               return -1;
+       if (slot == 11)
+               return (pin == 1) ? AU1500_PCI_INTD : 0xff;
+       if (slot == 12)
+               return (pin == 3) ? AU1500_PCI_INTC : 0xff;
+       if (slot == 13) {
+               switch (pin) {
+               case 1: return AU1500_PCI_INTA;
+               case 2: return AU1500_PCI_INTB;
+               default: return 0xff;
+               }
+       }
+       return -1;
+}
+#endif
+
+static struct resource alchemy_pci_host_res[] = {
+       [0] = {
+               .start  = AU1500_PCI_PHYS_ADDR,
+               .end    = AU1500_PCI_PHYS_ADDR + 0xfff,
+               .flags  = IORESOURCE_MEM,
+       },
+};
+
+static struct alchemy_pci_platdata db1xxx_pci_pd = {
+       .board_map_irq  = db1xxx_map_pci_irq,
+};
+
+static struct platform_device db1xxx_pci_host_dev = {
+       .dev.platform_data = &db1xxx_pci_pd,
+       .name           = "alchemy-pci",
+       .id             = 0,
+       .num_resources  = ARRAY_SIZE(alchemy_pci_host_res),
+       .resource       = alchemy_pci_host_res,
+};
+
+static int __init db15x0_pci_init(void)
+{
+       return platform_device_register(&db1xxx_pci_host_dev);
+}
+/* must be arch_initcall; MIPS PCI scans busses in a subsys_initcall */
+arch_initcall(db15x0_pci_init);
+#endif
+
 static int __init db1xxx_dev_init(void)
 {
 #ifdef DB1XXX_HAS_PCMCIA