X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=arch%2Fpowerpc%2Fplatforms%2Fpowermac%2Fsetup.c;h=adad4e97638182ce31ef9733ba14c6fd7e1c709f;hb=c2a7dcad9f0d92d7a96e735abb8bec7b9c621536;hp=a410bc76a8a8ee5cc4bb2226a0906e37e7054329;hpb=2c4f365ad2361c93c097e958b2b0a7a112750228;p=linux-2.6-omap-h63xx.git

diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c
index a410bc76a8a..adad4e97638 100644
--- a/arch/powerpc/platforms/powermac/setup.c
+++ b/arch/powerpc/platforms/powermac/setup.c
@@ -51,6 +51,8 @@
 #include <linux/root_dev.h>
 #include <linux/bitops.h>
 #include <linux/suspend.h>
+#include <linux/of_device.h>
+#include <linux/of_platform.h>
 
 #include <asm/reg.h>
 #include <asm/sections.h>
@@ -68,8 +70,6 @@
 #include <asm/btext.h>
 #include <asm/pmac_feature.h>
 #include <asm/time.h>
-#include <asm/of_device.h>
-#include <asm/of_platform.h>
 #include <asm/mmu_context.h>
 #include <asm/iommu.h>
 #include <asm/smu.h>
@@ -94,7 +94,6 @@ extern struct machdep_calls pmac_md;
 #define DEFAULT_ROOT_DEVICE Root_SDA1	/* sda1 - slightly silly choice */
 
 #ifdef CONFIG_PPC64
-#include <asm/udbg.h>
 int sccdbg;
 #endif
 
@@ -363,8 +362,19 @@ static void __init pmac_setup_arch(void)
 		smp_ops = &core99_smp_ops;
 	}
 #ifdef CONFIG_PPC32
-	else
+	else {
+		/*
+		 * We have to set bits in cpu_possible_map here since the
+		 * secondary CPU(s) aren't in the device tree, and
+		 * setup_per_cpu_areas only allocates per-cpu data for
+		 * CPUs in the cpu_possible_map.
+		 */
+		int cpu;
+
+		for (cpu = 1; cpu < 4 && cpu < NR_CPUS; ++cpu)
+			cpu_set(cpu, cpu_possible_map);
 		smp_ops = &psurge_smp_ops;
+	}
 #endif
 #endif /* CONFIG_SMP */
 
@@ -376,73 +386,20 @@ static void __init pmac_setup_arch(void)
 #endif /* CONFIG_ADB */
 }
 
-char *bootpath;
-char *bootdevice;
-void *boot_host;
-int boot_target;
-int boot_part;
-static dev_t boot_dev;
-
 #ifdef CONFIG_SCSI
-void __init note_scsi_host(struct device_node *node, void *host)
+void note_scsi_host(struct device_node *node, void *host)
 {
-	int l;
-	char *p;
-
-	l = strlen(node->full_name);
-	if (bootpath != NULL && bootdevice != NULL
-	    && strncmp(node->full_name, bootdevice, l) == 0
-	    && (bootdevice[l] == '/' || bootdevice[l] == 0)) {
-		boot_host = host;
-		/*
-		 * There's a bug in OF 1.0.5.  (Why am I not surprised.)
-		 * If you pass a path like scsi/sd@1:0 to canon, it returns
-		 * something like /bandit@F2000000/gc@10/53c94@10000/sd@0,0
-		 * That is, the scsi target number doesn't get preserved.
-		 * So we pick the target number out of bootpath and use that.
-		 */
-		p = strstr(bootpath, "/sd@");
-		if (p != NULL) {
-			p += 4;
-			boot_target = simple_strtoul(p, NULL, 10);
-			p = strchr(p, ':');
-			if (p != NULL)
-				boot_part = simple_strtoul(p + 1, NULL, 10);
-		}
-	}
 }
 EXPORT_SYMBOL(note_scsi_host);
 #endif
 
-#if defined(CONFIG_BLK_DEV_IDE) && defined(CONFIG_BLK_DEV_IDE_PMAC)
-static dev_t __init find_ide_boot(void)
-{
-	char *p;
-	int n;
-	dev_t __init pmac_find_ide_boot(char *bootdevice, int n);
-
-	if (bootdevice == NULL)
-		return 0;
-	p = strrchr(bootdevice, '/');
-	if (p == NULL)
-		return 0;
-	n = p - bootdevice;
-
-	return pmac_find_ide_boot(bootdevice, n);
-}
-#endif /* CONFIG_BLK_DEV_IDE && CONFIG_BLK_DEV_IDE_PMAC */
-
-static void __init find_boot_device(void)
-{
-#if defined(CONFIG_BLK_DEV_IDE) && defined(CONFIG_BLK_DEV_IDE_PMAC)
-	boot_dev = find_ide_boot();
-#endif
-}
-
 static int initializing = 1;
 
 static int pmac_late_init(void)
 {
+	if (!machine_is(powermac))
+		return -ENODEV;
+
 	initializing = 0;
 	/* this is udbg (which is __init) and we can later use it during
 	 * cpu hotplug (in smp_core99_kick_cpu) */
@@ -452,10 +409,14 @@ static int pmac_late_init(void)
 
 late_initcall(pmac_late_init);
 
-/* can't be __init - can be called whenever a disk is first accessed */
-void note_bootable_part(dev_t dev, int part, int goodness)
+/*
+ * This is __init_refok because we check for "initializing" before
+ * touching any of the __init sensitive things and "initializing"
+ * will be false after __init time. This can't be __init because it
+ * can be called whenever a disk is first accessed.
+ */
+void __init_refok note_bootable_part(dev_t dev, int part, int goodness)
 {
-	static int found_boot = 0;
 	char *p;
 
 	if (!initializing)
@@ -467,15 +428,8 @@ void note_bootable_part(dev_t dev, int part, int goodness)
 	if (p != NULL && (p == boot_command_line || p[-1] == ' '))
 		return;
 
-	if (!found_boot) {
-		find_boot_device();
-		found_boot = 1;
-	}
-	if (!boot_dev || dev == boot_dev) {
-		ROOT_DEV = dev + part;
-		boot_dev = 0;
-		current_root_goodness = goodness;
-	}
+	ROOT_DEV = dev + part;
+	current_root_goodness = goodness;
 }
 
 #ifdef CONFIG_ADB_CUDA
@@ -658,9 +612,11 @@ static int pmac_pci_probe_mode(struct pci_bus *bus)
 
 	/* We need to use normal PCI probing for the AGP bus,
 	 * since the device for the AGP bridge isn't in the tree.
+	 * Same for the PCIe host on U4 and the HT host bridge.
 	 */
 	if (bus->self == NULL && (of_device_is_compatible(node, "u3-agp") ||
-				  of_device_is_compatible(node, "u4-pcie")))
+				  of_device_is_compatible(node, "u4-pcie") ||
+				  of_device_is_compatible(node, "u3-ht")))
 		return PCI_PROBE_NORMAL;
 	return PCI_PROBE_DEVTREE;
 }