Pull button into test branch

[linux-drm-fsl-dcu.git] / arch / powerpc / platforms / chrp / pci.c

diff --git a/arch/powerpc/platforms/chrp/pci.c b/arch/powerpc/platforms/chrp/pci.c
index 66c253498803b114ef7af3e82ff9b47f3bb900f8..ddb4a116ea89b7d0be044c7531cd87aeb59d7093 100644 (file)
--- a/arch/powerpc/platforms/chrp/pci.c
+++ b/arch/powerpc/platforms/chrp/pci.c
@@ -18,7 +18,6 @@
 #include <asm/machdep.h>
 #include <asm/sections.h>
 #include <asm/pci-bridge.h>
-#include <asm/open_pic.h>
 #include <asm/grackle.h>
 #include <asm/rtas.h>
 
@@ -157,21 +156,6 @@ hydra_init(void)
        return 1;
 }
 
-void __init
-chrp_pcibios_fixup(void)
-{
-       struct pci_dev *dev = NULL;
-       struct device_node *np;
-
-       /* PCI interrupts are controlled by the OpenPIC */
-       for_each_pci_dev(dev) {
-               np = pci_device_to_OF_node(dev);
-               if ((np != 0) && (np->n_intrs > 0) && (np->intrs[0].line != 0))
-                       dev->irq = np->intrs[0].line;
-               pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq);
-       }
-}
-
 #define PRG_CL_RESET_VALID 0x00010000
 
 static void __init
@@ -221,11 +205,11 @@ void __init
 chrp_find_bridges(void)
 {
        struct device_node *dev;
-       int *bus_range;
+       const int *bus_range;
        int len, index = -1;
        struct pci_controller *hose;
-       unsigned int *dma;
-       char *model, *machine;
+       const unsigned int *dma;
+       const char *model, *machine;
        int is_longtrail = 0, is_mot = 0, is_pegasos = 0;
        struct device_node *root = find_path_device("/");
        struct resource r;
@@ -253,7 +237,7 @@ chrp_find_bridges(void)
                               dev->full_name);
                        continue;
                }
-               bus_range = (int *) get_property(dev, "bus-range", &len);
+               bus_range = get_property(dev, "bus-range", &len);
                if (bus_range == NULL || len < 2 * sizeof(int)) {
                        printk(KERN_WARNING "Can't get bus-range for %s\n",
                                dev->full_name);
@@ -264,7 +248,7 @@ chrp_find_bridges(void)
                else
                        printk(KERN_INFO "PCI buses %d..%d",
                               bus_range[0], bus_range[1]);
-               printk(" controlled by %s", dev->type);
+               printk(" controlled by %s", dev->full_name);
                if (!is_longtrail)
                        printk(" at %llx", (unsigned long long)r.start);
                printk("\n");
@@ -296,6 +280,19 @@ chrp_find_bridges(void)
                        setup_indirect_pci(hose, 0xfec00cf8, 0xfee00cfc);
                } else if (is_pegasos == 2) {
                        setup_peg2(hose, dev);
+               } else if (!strncmp(model, "IBM,CPC710", 10)) {
+                       setup_indirect_pci(hose,
+                                          r.start + 0x000f8000,
+                                          r.start + 0x000f8010);
+                       if (index == 0) {
+                               dma = get_property(dev, "system-dma-base",&len);
+                               if (dma && len >= sizeof(*dma)) {
+                                       dma = (unsigned int *)
+                                               (((unsigned long)dma) +
+                                               len - sizeof(*dma));
+                                               pci_dram_offset = *dma;
+                               }
+                       }
                } else {
                        printk("No methods for %s (model %s), using RTAS\n",
                               dev->full_name, model);
@@ -306,15 +303,35 @@ chrp_find_bridges(void)
 
                /* check the first bridge for a property that we can
                   use to set pci_dram_offset */
-               dma = (unsigned int *)
-                       get_property(dev, "ibm,dma-ranges", &len);
+               dma = get_property(dev, "ibm,dma-ranges", &len);
                if (index == 0 && dma != NULL && len >= 6 * sizeof(*dma)) {
                        pci_dram_offset = dma[2] - dma[3];
                        printk("pci_dram_offset = %lx\n", pci_dram_offset);
                }
        }
+}
+
+/* SL82C105 IDE Control/Status Register */
+#define SL82C105_IDECSR                0x40
+
+/* Fixup for Winbond ATA quirk, required for briq */
+void chrp_pci_fixup_winbond_ata(struct pci_dev *sl82c105)
+{
+       u8 progif;
 
-       /* Do not fixup interrupts from OF tree on pegasos */
-       if (is_pegasos)
-               ppc_md.pcibios_fixup = NULL;
+       /* If non-briq machines need that fixup too, please speak up */
+       if (!machine_is(chrp) || _chrp_type != _CHRP_briq)
+               return;
+
+       if ((sl82c105->class & 5) != 5) {
+               printk("W83C553: Switching SL82C105 IDE to PCI native mode\n");
+               /* Enable SL82C105 PCI native IDE mode */
+               pci_read_config_byte(sl82c105, PCI_CLASS_PROG, &progif);
+               pci_write_config_byte(sl82c105, PCI_CLASS_PROG, progif | 0x05);
+               sl82c105->class |= 0x05;
+               /* Disable SL82C105 second port */
+               pci_write_config_word(sl82c105, SL82C105_IDECSR, 0x0003);
+       }
 }
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_WINBOND, PCI_DEVICE_ID_WINBOND_82C105,
+               chrp_pci_fixup_winbond_ata);