1 files changed, 162 insertions, 115 deletions

diff --git a/arch/powerpc/platforms/cell/setup.c b/arch/powerpc/platforms/cell/setup.c
index b33a4443f5a..6ae25fb6201 100644
--- a/arch/powerpc/platforms/cell/setup.c
+++ b/arch/powerpc/platforms/cell/setup.c
@@ -14,13 +14,12 @@
  */
 #undef DEBUG
 
-#include <linux/config.h>
 #include <linux/sched.h>
 #include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/stddef.h>
+#include <linux/export.h>
 #include <linux/unistd.h>
-#include <linux/slab.h>
 #include <linux/user.h>
 #include <linux/reboot.h>
 #include <linux/init.h>
@@ -29,11 +28,13 @@
 #include <linux/seq_file.h>
 #include <linux/root_dev.h>
 #include <linux/console.h>
+#include <linux/mutex.h>
+#include <linux/memory_hotplug.h>
+#include <linux/of_platform.h>
 
 #include <asm/mmu.h>
 #include <asm/processor.h>
 #include <asm/io.h>
-#include <asm/kexec.h>
 #include <asm/pgtable.h>
 #include <asm/prom.h>
 #include <asm/rtas.h>
@@ -46,10 +47,16 @@
 #include <asm/cputable.h>
 #include <asm/ppc-pci.h>
 #include <asm/irq.h>
+#include <asm/spu.h>
+#include <asm/spu_priv1.h>
+#include <asm/udbg.h>
+#include <asm/mpic.h>
+#include <asm/cell-regs.h>
+#include <asm/io-workarounds.h>
 
 #include "interrupt.h"
-#include "iommu.h"
 #include "pervasive.h"
+#include "ras.h"
 
 #ifdef DEBUG
 #define DBG(fmt...) udbg_printf(fmt)
@@ -64,158 +71,202 @@ static void cell_show_cpuinfo(struct seq_file *m)
 
 	root = of_find_node_by_path("/");
 	if (root)
-		model = get_property(root, "model", NULL);
+		model = of_get_property(root, "model", NULL);
 	seq_printf(m, "machine\t\t: CHRP %s\n", model);
 	of_node_put(root);
 }
 
-#ifdef CONFIG_SPARSEMEM
-static int __init find_spu_node_id(struct device_node *spe)
+static void cell_progress(char *s, unsigned short hex)
 {
-	unsigned int *id;
-#ifdef CONFIG_NUMA
-	struct device_node *cpu;
-	cpu = spe->parent->parent;
-	id = (unsigned int *)get_property(cpu, "node-id", NULL);
-#else
-	id = NULL;
-#endif
-	return id ? *id : 0;
+	printk("*** %04x : %s\n", hex, s ? s : "");
 }
 
-static void __init cell_spuprop_present(struct device_node *spe,
-				       const char *prop, int early)
+static void cell_fixup_pcie_rootcomplex(struct pci_dev *dev)
 {
-	struct address_prop {
-		unsigned long address;
-		unsigned int len;
-	} __attribute__((packed)) *p;
-	int proplen;
-
-	unsigned long start_pfn, end_pfn, pfn;
-	int node_id;
-
-	p = (void*)get_property(spe, prop, &proplen);
-	WARN_ON(proplen != sizeof (*p));
-
-	node_id = find_spu_node_id(spe);
-
-	start_pfn = p->address >> PAGE_SHIFT;
-	end_pfn = (p->address + p->len + PAGE_SIZE - 1) >> PAGE_SHIFT;
-
-	/* We need to call memory_present *before* the call to sparse_init,
-	   but we can initialize the page structs only *after* that call.
-	   Thus, we're being called twice. */
-	if (early)
-		memory_present(node_id, start_pfn, end_pfn);
-	else {
-		/* As the pages backing SPU LS and I/O are outside the range
-		   of regular memory, their page structs were not initialized
-		   by free_area_init. Do it here instead. */
-		for (pfn = start_pfn; pfn < end_pfn; pfn++) {
-			struct page *page = pfn_to_page(pfn);
-			set_page_links(page, ZONE_DMA, node_id, pfn);
-			set_page_count(page, 1);
-			reset_page_mapcount(page);
-			SetPageReserved(page);
-			INIT_LIST_HEAD(&page->lru);
-		}
+	struct pci_controller *hose;
+	const char *s;
+	int i;
+
+	if (!machine_is(cell))
+		return;
+
+	/* We're searching for a direct child of the PHB */
+	if (dev->bus->self != NULL || dev->devfn != 0)
+		return;
+
+	hose = pci_bus_to_host(dev->bus);
+	if (hose == NULL)
+		return;
+
+	/* Only on PCIE */
+	if (!of_device_is_compatible(hose->dn, "pciex"))
+		return;
+
+	/* And only on axon */
+	s = of_get_property(hose->dn, "model", NULL);
+	if (!s || strcmp(s, "Axon") != 0)
+		return;
+
+	for (i = 0; i < PCI_BRIDGE_RESOURCES; i++) {
+		dev->resource[i].start = dev->resource[i].end = 0;
+		dev->resource[i].flags = 0;
 	}
+
+	printk(KERN_DEBUG "PCI: Hiding resources on Axon PCIE RC %s\n",
+	       pci_name(dev));
 }
+DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, cell_fixup_pcie_rootcomplex);
 
-static void __init cell_spumem_init(int early)
+static int cell_setup_phb(struct pci_controller *phb)
 {
-	struct device_node *node;
-	for (node = of_find_node_by_type(NULL, "spe");
-			node; node = of_find_node_by_type(node, "spe")) {
-		cell_spuprop_present(node, "local-store", early);
-		cell_spuprop_present(node, "problem", early);
-		cell_spuprop_present(node, "priv1", early);
-		cell_spuprop_present(node, "priv2", early);
+	const char *model;
+	struct device_node *np;
+
+	int rc = rtas_setup_phb(phb);
+	if (rc)
+		return rc;
+
+	np = phb->dn;
+	model = of_get_property(np, "model", NULL);
+	if (model == NULL || strcmp(np->name, "pci"))
+		return 0;
+
+	/* Setup workarounds for spider */
+	if (strcmp(model, "Spider"))
+		return 0;
+
+	iowa_register_bus(phb, &spiderpci_ops, &spiderpci_iowa_init,
+				  (void *)SPIDER_PCI_REG_BASE);
+	return 0;
+}
+
+static const struct of_device_id cell_bus_ids[] __initconst = {
+	{ .type = "soc", },
+	{ .compatible = "soc", },
+	{ .type = "spider", },
+	{ .type = "axon", },
+	{ .type = "plb5", },
+	{ .type = "plb4", },
+	{ .type = "opb", },
+	{ .type = "ebc", },
+	{},
+};
+
+static int __init cell_publish_devices(void)
+{
+	struct device_node *root = of_find_node_by_path("/");
+	struct device_node *np;
+	int node;
+
+	/* Publish OF platform devices for southbridge IOs */
+	of_platform_bus_probe(NULL, cell_bus_ids, NULL);
+
+	/* On spider based blades, we need to manually create the OF
+	 * platform devices for the PCI host bridges
+	 */
+	for_each_child_of_node(root, np) {
+		if (np->type == NULL || (strcmp(np->type, "pci") != 0 &&
+					 strcmp(np->type, "pciex") != 0))
+			continue;
+		of_platform_device_create(np, NULL, NULL);
+	}
+
+	/* There is no device for the MIC memory controller, thus we create
+	 * a platform device for it to attach the EDAC driver to.
+	 */
+	for_each_online_node(node) {
+		if (cbe_get_cpu_mic_tm_regs(cbe_node_to_cpu(node)) == NULL)
+			continue;
+		platform_device_register_simple("cbe-mic", node, NULL, 0);
 	}
+
+	return 0;
 }
-#else
-static void __init cell_spumem_init(int early)
+machine_subsys_initcall(cell, cell_publish_devices);
+
+static void __init mpic_init_IRQ(void)
 {
+	struct device_node *dn;
+	struct mpic *mpic;
+
+	for (dn = NULL;
+	     (dn = of_find_node_by_name(dn, "interrupt-controller"));) {
+		if (!of_device_is_compatible(dn, "CBEA,platform-open-pic"))
+			continue;
+
+		/* The MPIC driver will get everything it needs from the
+		 * device-tree, just pass 0 to all arguments
+		 */
+		mpic = mpic_alloc(dn, 0, MPIC_SECONDARY | MPIC_NO_RESET,
+				0, 0, " MPIC     ");
+		if (mpic == NULL)
+			continue;
+		mpic_init(mpic);
+	}
 }
-#endif
 
-static void cell_progress(char *s, unsigned short hex)
+
+static void __init cell_init_irq(void)
 {
-	printk("*** %04x : %s\n", hex, s ? s : "");
+	iic_init_IRQ();
+	spider_init_IRQ();
+	mpic_init_IRQ();
+}
+
+static void __init cell_set_dabrx(void)
+{
+	mtspr(SPRN_DABRX, DABRX_KERNEL | DABRX_USER);
 }
 
 static void __init cell_setup_arch(void)
 {
-	ppc_md.init_IRQ       = iic_init_IRQ;
-	ppc_md.get_irq        = iic_get_irq;
+#ifdef CONFIG_SPU_BASE
+	spu_priv1_ops = &spu_priv1_mmio_ops;
+	spu_management_ops = &spu_management_of_ops;
+#endif
+
+	cbe_regs_init();
+
+	cell_set_dabrx();
+
+#ifdef CONFIG_CBE_RAS
+	cbe_ras_init();
+#endif
 
 #ifdef CONFIG_SMP
 	smp_init_cell();
 #endif
-
 	/* init to some ~sane value until calibrate_delay() runs */
 	loops_per_jiffy = 50000000;
 
-	if (ROOT_DEV == 0) {
-		printk("No ramdisk, default root is /dev/hda2\n");
-		ROOT_DEV = Root_HDA2;
-	}
-
 	/* Find and initialize PCI host bridges */
 	init_pci_config_tokens();
-	find_and_init_phbs();
-	spider_init_IRQ();
-	cell_pervasive_init();
+
+	cbe_pervasive_init();
 #ifdef CONFIG_DUMMY_CONSOLE
 	conswitchp = &dummy_con;
 #endif
 
 	mmio_nvram_init();
-
-	cell_spumem_init(0);
 }
 
-/*
- * Early initialization.  Relocation is on but do not reference unbolted pages
- */
-static void __init cell_init_early(void)
+static int __init cell_probe(void)
 {
-	DBG(" -> cell_init_early()\n");
+	unsigned long root = of_get_flat_dt_root();
 
-	hpte_init_native();
-
-	cell_init_iommu();
-
-	ppc64_interrupt_controller = IC_CELL_PIC;
-
-	cell_spumem_init(1);
-
-	DBG(" <- cell_init_early()\n");
-}
-
-
-static int __init cell_probe(int platform)
-{
-	if (platform != PLATFORM_CELL)
+	if (!of_flat_dt_is_compatible(root, "IBM,CBEA") &&
+	    !of_flat_dt_is_compatible(root, "IBM,CPBW-1.0"))
 		return 0;
 
-	return 1;
-}
+	hpte_init_native();
 
-/*
- * Cell has no legacy IO; anything calling this function has to
- * fail or bad things will happen
- */
-static int cell_check_legacy_ioport(unsigned int baseport)
-{
-	return -ENODEV;
+	return 1;
 }
 
-struct machdep_calls __initdata cell_md = {
+define_machine(cell) {
+	.name			= "Cell",
 	.probe			= cell_probe,
 	.setup_arch		= cell_setup_arch,
-	.init_early		= cell_init_early,
 	.show_cpuinfo		= cell_show_cpuinfo,
 	.restart		= rtas_restart,
 	.power_off		= rtas_power_off,
@@ -224,11 +275,7 @@ struct machdep_calls __initdata cell_md = {
 	.get_rtc_time		= rtas_get_rtc_time,
 	.set_rtc_time		= rtas_set_rtc_time,
 	.calibrate_decr		= generic_calibrate_decr,
-	.check_legacy_ioport	= cell_check_legacy_ioport,
 	.progress		= cell_progress,
-#ifdef CONFIG_KEXEC
-	.machine_kexec		= default_machine_kexec,
-	.machine_kexec_prepare	= default_machine_kexec_prepare,
-	.machine_crash_shutdown	= default_machine_crash_shutdown,
-#endif
+	.init_IRQ       	= cell_init_irq,
+	.pci_setup_phb		= cell_setup_phb,
 };