Merge branch 'intx' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/misc-2.6

[pandora-kernel.git] / arch / powerpc / platforms / iseries / setup.c

diff --git a/arch/powerpc/platforms/iseries/setup.c b/arch/powerpc/platforms/iseries/setup.c
index 7f19530..bdf2afb 100644 (file)
--- a/arch/powerpc/platforms/iseries/setup.c
+++ b/arch/powerpc/platforms/iseries/setup.c
@@ -21,7 +21,6 @@
 #include <linux/smp.h>
 #include <linux/param.h>
 #include <linux/string.h>
-#include <linux/initrd.h>
 #include <linux/seq_file.h>
 #include <linux/kdev_t.h>
 #include <linux/major.h>
@@ -80,8 +79,6 @@ extern void iSeries_pci_final_fixup(void);
 static void iSeries_pci_final_fixup(void) { }
 #endif
 
-extern int rd_size;            /* Defined in drivers/block/rd.c */
-
 extern unsigned long iSeries_recal_tb;
 extern unsigned long iSeries_recal_titan;
 
@@ -295,24 +292,6 @@ static void __init iSeries_init_early(void)
 {
        DBG(" -> iSeries_init_early()\n");
 
-#if defined(CONFIG_BLK_DEV_INITRD)
-       /*
-        * If the init RAM disk has been configured and there is
-        * a non-zero starting address for it, set it up
-        */
-       if (naca.xRamDisk) {
-               initrd_start = (unsigned long)__va(naca.xRamDisk);
-               initrd_end = initrd_start + naca.xRamDiskSize * HW_PAGE_SIZE;
-               initrd_below_start_ok = 1;      // ramdisk in kernel space
-               ROOT_DEV = Root_RAM0;
-               if (((rd_size * 1024) / HW_PAGE_SIZE) < naca.xRamDiskSize)
-                       rd_size = (naca.xRamDiskSize * HW_PAGE_SIZE) / 1024;
-       } else
-#endif /* CONFIG_BLK_DEV_INITRD */
-       {
-           /* ROOT_DEV = MKDEV(VIODASD_MAJOR, 1); */
-       }
-
        iSeries_recal_tb = get_tb();
        iSeries_recal_titan = HvCallXm_loadTod();
 
@@ -331,17 +310,6 @@ static void __init iSeries_init_early(void)
 
        mf_init();
 
-       /* If we were passed an initrd, set the ROOT_DEV properly if the values
-        * look sensible. If not, clear initrd reference.
-        */
-#ifdef CONFIG_BLK_DEV_INITRD
-       if (initrd_start >= KERNELBASE && initrd_end >= KERNELBASE &&
-           initrd_end > initrd_start)
-               ROOT_DEV = Root_RAM0;
-       else
-               initrd_start = initrd_end = 0;
-#endif /* CONFIG_BLK_DEV_INITRD */
-
        DBG(" <- iSeries_init_early()\n");
 }
 
@@ -649,16 +617,34 @@ static void iseries_dedicated_idle(void)
 void __init iSeries_init_IRQ(void) { }
 #endif
 
+static void __iomem *iseries_ioremap(phys_addr_t address, unsigned long size,
+                                    unsigned long flags)
+{
+       return (void __iomem *)address;
+}
+
+static void iseries_iounmap(volatile void __iomem *token)
+{
+}
+
+/*
+ * iSeries has no legacy IO, anything calling this function has to
+ * fail or bad things will happen
+ */
+static int iseries_check_legacy_ioport(unsigned int baseport)
+{
+       return -ENODEV;
+}
+
 static int __init iseries_probe(void)
 {
        unsigned long root = of_get_flat_dt_root();
        if (!of_flat_dt_is_compatible(root, "IBM,iSeries"))
                return 0;
 
-       powerpc_firmware_features |= FW_FEATURE_ISERIES;
-       powerpc_firmware_features |= FW_FEATURE_LPAR;
-
        hpte_init_iSeries();
+       /* iSeries does not support 16M pages */
+       cur_cpu_spec->cpu_features &= ~CPU_FTR_16M_PAGE;
 
        return 1;
 }
@@ -680,6 +666,9 @@ define_machine(iseries) {
        .calibrate_decr = generic_calibrate_decr,
        .progress       = iSeries_progress,
        .probe          = iseries_probe,
+       .check_legacy_ioport    = iseries_check_legacy_ioport,
+       .ioremap        = iseries_ioremap,
+       .iounmap        = iseries_iounmap,
        /* XXX Implement enable_pmcs for iSeries */
 };
 
@@ -687,6 +676,14 @@ void * __init iSeries_early_setup(void)
 {
        unsigned long phys_mem_size;
 
+       /* Identify CPU type. This is done again by the common code later
+        * on but calling this function multiple times is fine.
+        */
+       identify_cpu(0, mfspr(SPRN_PVR));
+
+       powerpc_firmware_features |= FW_FEATURE_ISERIES;
+       powerpc_firmware_features |= FW_FEATURE_LPAR;
+
        iSeries_fixup_klimit();
 
        /*