MIPS: Alchemy: Redo PCI as platform driver

- Rewrite Alchemy PCI support as a platform driver.
- Fixup boards which have PCI.

Run-tested on DB1500 and DB1550.

Signed-off-by: Manuel Lauss <manuel.lauss@googlemail.com>
To: Linux-MIPS <linux-mips@linux-mips.org>
Patchwork: https://patchwork.linux-mips.org/patch/2706/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

 delete mode 100644 arch/mips/alchemy/common/pci.c
 delete mode 100644 arch/mips/pci/fixup-au1000.c
 delete mode 100644 arch/mips/pci/ops-au1000.c
 create mode 100644 arch/mips/pci/pci-alchemy.c

1 files changed, 47 insertions, 0 deletions

diff --git a/arch/mips/alchemy/gpr/platform.c b/arch/mips/alchemy/gpr/platform.c
index 14b46629cfc8..982ce85db60d 100644
--- a/arch/mips/alchemy/gpr/platform.c
+++ b/arch/mips/alchemy/gpr/platform.c
@@ -167,6 +167,45 @@ static struct i2c_board_info gpr_i2c_info[] __initdata = {
         }
 };
 
+
+
+static struct resource alchemy_pci_host_res[] = {
+        [0] = {
+                .start  = AU1500_PCI_PHYS_ADDR,
+                .end    = AU1500_PCI_PHYS_ADDR + 0xfff,
+                .flags  = IORESOURCE_MEM,
+        },
+};
+
+static int gpr_map_pci_irq(const struct pci_dev *d, u8 slot, u8 pin)
+{
+        if ((slot == 0) && (pin == 1))
+                return AU1550_PCI_INTA;
+        else if ((slot == 0) && (pin == 2))
+                return AU1550_PCI_INTB;
+
+        return -1;
+}
+
+static struct alchemy_pci_platdata gpr_pci_pd = {
+        .board_map_irq  = gpr_map_pci_irq,
+        .pci_cfg_set    = PCI_CONFIG_AEN | PCI_CONFIG_R2H | PCI_CONFIG_R1H |
+                          PCI_CONFIG_CH |
+#if defined(__MIPSEB__)
+                          PCI_CONFIG_SIC_HWA_DAT | PCI_CONFIG_SM,
+#else
+                          0,
+#endif
+};
+
+static struct platform_device gpr_pci_host_dev = {
+        .dev.platform_data = &gpr_pci_pd,
+        .name           = "alchemy-pci",
+        .id             = 0,
+        .num_resources  = ARRAY_SIZE(alchemy_pci_host_res),
+        .resource       = alchemy_pci_host_res,
+};
+
 static struct platform_device *gpr_devices[] __initdata = {
         &gpr_wdt_device,
         &gpr_mtd_device,
@@ -174,6 +213,14 @@ static struct platform_device *gpr_devices[] __initdata = {
         &gpr_led_devices,
 };
 
+static int __init gpr_pci_init(void)
+{
+        return platform_device_register(&gpr_pci_host_dev);
+}
+/* must be arch_initcall; MIPS PCI scans busses in a subsys_initcall */
+arch_initcall(gpr_pci_init);
+
+
 static int __init gpr_dev_init(void)
 {
         i2c_register_board_info(0, gpr_i2c_info, ARRAY_SIZE(gpr_i2c_info));