X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=arch%2Fsh%2Fkernel%2Fsetup.c;h=dd38338553ef5484306907ae7465e36f93afa7c6;hb=2094e504a7489a2d774d544592360e578d9325f8;hp=0f1fbe72cce467f2829d0ec0f2eeebbf975662c1;hpb=de02797aa744c96a90f47be7bc081ce2f74b17fd;p=safe%2Fjmp%2Flinux-2.6

diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index 0f1fbe7..dd38338 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -1,16 +1,12 @@
-/* $Id: setup.c,v 1.30 2003/10/13 07:21:19 lethal Exp $
+/*
+ * arch/sh/kernel/setup.c
  *
- *  linux/arch/sh/kernel/setup.c
+ * This file handles the architecture-dependent parts of initialization
  *
  *  Copyright (C) 1999  Niibe Yutaka
- *  Copyright (C) 2002, 2003  Paul Mundt
+ *  Copyright (C) 2002 - 2007 Paul Mundt
  */
-
-/*
- * This file handles the architecture-dependent parts of initialization
- */
-
-#include <linux/tty.h>
+#include <linux/screen_info.h>
 #include <linux/ioport.h>
 #include <linux/init.h>
 #include <linux/initrd.h>
@@ -19,247 +15,339 @@
 #include <linux/seq_file.h>
 #include <linux/root_dev.h>
 #include <linux/utsname.h>
+#include <linux/nodemask.h>
 #include <linux/cpu.h>
+#include <linux/pfn.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/kexec.h>
+#include <linux/module.h>
+#include <linux/smp.h>
+#include <linux/err.h>
+#include <linux/debugfs.h>
+#include <linux/crash_dump.h>
+#include <linux/mmzone.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/platform_device.h>
 #include <asm/uaccess.h>
 #include <asm/io.h>
+#include <asm/page.h>
+#include <asm/elf.h>
 #include <asm/sections.h>
 #include <asm/irq.h>
 #include <asm/setup.h>
 #include <asm/clock.h>
-
-#ifdef CONFIG_SH_KGDB
-#include <asm/kgdb.h>
-static int kgdb_parse_options(char *options);
-#endif
-extern void * __rd_start, * __rd_end;
-/*
- * Machine setup..
- */
+#include <asm/mmu_context.h>
 
 /*
  * Initialize loops_per_jiffy as 10000000 (1000MIPS).
  * This value will be used at the very early stage of serial setup.
  * The bigger value means no problem.
  */
-struct sh_cpuinfo boot_cpu_data = { CPU_SH_NONE, 10000000, };
-struct screen_info screen_info;
-
-#if defined(CONFIG_SH_UNKNOWN)
-struct sh_machine_vector sh_mv;
-#endif
-
-/* We need this to satisfy some external references. */
-struct screen_info screen_info = {
-        0, 25,                  /* orig-x, orig-y */
-        0,                      /* unused */
-        0,                      /* orig-video-page */
-        0,                      /* orig-video-mode */
-        80,                     /* orig-video-cols */
-        0,0,0,                  /* ega_ax, ega_bx, ega_cx */
-        25,                     /* orig-video-lines */
-        0,                      /* orig-video-isVGA */
-        16                      /* orig-video-points */
+struct sh_cpuinfo cpu_data[NR_CPUS] __read_mostly = {
+	[0] = {
+		.type			= CPU_SH_NONE,
+		.loops_per_jiffy	= 10000000,
+	},
 };
-
-extern void platform_setup(void);
-extern char *get_system_type(void);
-extern int root_mountflags;
-
-#define MV_NAME_SIZE 32
-
-static struct sh_machine_vector* __init get_mv_byname(const char* name);
+EXPORT_SYMBOL(cpu_data);
 
 /*
- * This is set up by the setup-routine at boot-time
+ * The machine vector. First entry in .machvec.init, or clobbered by
+ * sh_mv= on the command line, prior to .machvec.init teardown.
  */
-#define PARAM	((unsigned char *)empty_zero_page)
+struct sh_machine_vector sh_mv = { .mv_name = "generic", };
+EXPORT_SYMBOL(sh_mv);
 
-#define MOUNT_ROOT_RDONLY (*(unsigned long *) (PARAM+0x000))
-#define RAMDISK_FLAGS (*(unsigned long *) (PARAM+0x004))
-#define ORIG_ROOT_DEV (*(unsigned long *) (PARAM+0x008))
-#define LOADER_TYPE (*(unsigned long *) (PARAM+0x00c))
-#define INITRD_START (*(unsigned long *) (PARAM+0x010))
-#define INITRD_SIZE (*(unsigned long *) (PARAM+0x014))
-/* ... */
-#define COMMAND_LINE ((char *) (PARAM+0x100))
+#ifdef CONFIG_VT
+struct screen_info screen_info;
+#endif
+
+extern int root_mountflags;
 
 #define RAMDISK_IMAGE_START_MASK	0x07FF
 #define RAMDISK_PROMPT_FLAG		0x8000
 #define RAMDISK_LOAD_FLAG		0x4000
 
-static char command_line[COMMAND_LINE_SIZE] = { 0, };
-
-struct resource standard_io_resources[] = {
-	{ "dma1", 0x00, 0x1f },
-	{ "pic1", 0x20, 0x3f },
-	{ "timer", 0x40, 0x5f },
-	{ "keyboard", 0x60, 0x6f },
-	{ "dma page reg", 0x80, 0x8f },
-	{ "pic2", 0xa0, 0xbf },
-	{ "dma2", 0xc0, 0xdf },
-	{ "fpu", 0xf0, 0xff }
+static char __initdata command_line[COMMAND_LINE_SIZE] = { 0, };
+
+static struct resource code_resource = {
+	.name = "Kernel code",
+	.flags = IORESOURCE_BUSY | IORESOURCE_MEM,
+};
+
+static struct resource data_resource = {
+	.name = "Kernel data",
+	.flags = IORESOURCE_BUSY | IORESOURCE_MEM,
 };
 
-#define STANDARD_IO_RESOURCES (sizeof(standard_io_resources)/sizeof(struct resource))
-
-/* System RAM - interrupted by the 640kB-1M hole */
-#define code_resource (ram_resources[3])
-#define data_resource (ram_resources[4])
-static struct resource ram_resources[] = {
-	{ "System RAM", 0x000000, 0x09ffff, IORESOURCE_BUSY },
-	{ "System RAM", 0x100000, 0x100000, IORESOURCE_BUSY },
-	{ "Video RAM area", 0x0a0000, 0x0bffff },
-	{ "Kernel code", 0x100000, 0 },
-	{ "Kernel data", 0, 0 }
+static struct resource bss_resource = {
+	.name	= "Kernel bss",
+	.flags	= IORESOURCE_BUSY | IORESOURCE_MEM,
 };
 
-unsigned long memory_start, memory_end;
+unsigned long memory_start;
+EXPORT_SYMBOL(memory_start);
+unsigned long memory_end = 0;
+EXPORT_SYMBOL(memory_end);
 
-static inline void parse_cmdline (char ** cmdline_p, char mv_name[MV_NAME_SIZE],
-				  struct sh_machine_vector** mvp,
-				  unsigned long *mv_io_base,
-				  int *mv_mmio_enable)
+static struct resource mem_resources[MAX_NUMNODES];
+
+int l1i_cache_shape, l1d_cache_shape, l2_cache_shape;
+
+static int __init early_parse_mem(char *p)
 {
-	char c = ' ', *to = command_line, *from = COMMAND_LINE;
-	int len = 0;
+	unsigned long size;
 
-	/* Save unparsed command line copy for /proc/cmdline */
-	memcpy(saved_command_line, COMMAND_LINE, COMMAND_LINE_SIZE);
-	saved_command_line[COMMAND_LINE_SIZE-1] = '\0';
-
-	memory_start = (unsigned long)PAGE_OFFSET+__MEMORY_START;
-	memory_end = memory_start + __MEMORY_SIZE;
-
-	for (;;) {
-		/*
-		 * "mem=XXX[kKmM]" defines a size of memory.
-		 */
-		if (c == ' ' && !memcmp(from, "mem=", 4)) {
-			if (to != command_line)
-				to--;
-			{
-				unsigned long mem_size;
-
-				mem_size = memparse(from+4, &from);
-				memory_end = memory_start + mem_size;
-			}
-		}
-		if (c == ' ' && !memcmp(from, "sh_mv=", 6)) {
-			char* mv_end;
-			char* mv_comma;
-			int mv_len;
-			if (to != command_line)
-				to--;
-			from += 6;
-			mv_end = strchr(from, ' ');
-			if (mv_end == NULL)
-				mv_end = from + strlen(from);
-
-			mv_comma = strchr(from, ',');
-			if ((mv_comma != NULL) && (mv_comma < mv_end)) {
-				int ints[3];
-				get_options(mv_comma+1, ARRAY_SIZE(ints), ints);
-				*mv_io_base = ints[1];
-				*mv_mmio_enable = ints[2];
-				mv_len = mv_comma - from;
-			} else {
-				mv_len = mv_end - from;
-			}
-			if (mv_len > (MV_NAME_SIZE-1))
-				mv_len = MV_NAME_SIZE-1;
-			memcpy(mv_name, from, mv_len);
-			mv_name[mv_len] = '\0';
-			from = mv_end;
+	memory_start = (unsigned long)__va(__MEMORY_START);
+	size = memparse(p, &p);
 
-			*mvp = get_mv_byname(mv_name);
-		}
-		c = *(from++);
-		if (!c)
-			break;
-		if (COMMAND_LINE_SIZE <= ++len)
-			break;
-		*(to++) = c;
+	if (size > __MEMORY_SIZE) {
+		printk(KERN_ERR
+			"Using mem= to increase the size of kernel memory "
+			"is not allowed.\n"
+			"  Recompile the kernel with the correct value for "
+			"CONFIG_MEMORY_SIZE.\n");
+		return 0;
 	}
-	*to = '\0';
-	*cmdline_p = command_line;
+
+	memory_end = memory_start + size;
+
+	return 0;
+}
+early_param("mem", early_parse_mem);
+
+/*
+ * Register fully available low RAM pages with the bootmem allocator.
+ */
+static void __init register_bootmem_low_pages(void)
+{
+	unsigned long curr_pfn, last_pfn, pages;
+
+	/*
+	 * We are rounding up the start address of usable memory:
+	 */
+	curr_pfn = PFN_UP(__MEMORY_START);
+
+	/*
+	 * ... and at the end of the usable range downwards:
+	 */
+	last_pfn = PFN_DOWN(__pa(memory_end));
+
+	if (last_pfn > max_low_pfn)
+		last_pfn = max_low_pfn;
+
+	pages = last_pfn - curr_pfn;
+	free_bootmem(PFN_PHYS(curr_pfn), PFN_PHYS(pages));
 }
 
-static int __init sh_mv_setup(char **cmdline_p)
+#ifdef CONFIG_KEXEC
+static void __init reserve_crashkernel(void)
 {
-#if defined(CONFIG_SH_UNKNOWN)
-	extern struct sh_machine_vector mv_unknown;
-#endif
-	struct sh_machine_vector *mv = NULL;
-	char mv_name[MV_NAME_SIZE] = "";
-	unsigned long mv_io_base = 0;
-	int mv_mmio_enable = 0;
-
-	parse_cmdline(cmdline_p, mv_name, &mv, &mv_io_base, &mv_mmio_enable);
-
-#ifdef CONFIG_SH_GENERIC
-	if (mv == NULL) {
-		mv = &mv_unknown;
-		if (*mv_name != '\0') {
-			printk("Warning: Unsupported machine %s, using unknown\n",
-			       mv_name);
+	unsigned long long free_mem;
+	unsigned long long crash_size, crash_base;
+	void *vp;
+	int ret;
+
+	free_mem = ((unsigned long long)max_low_pfn - min_low_pfn) << PAGE_SHIFT;
+
+	ret = parse_crashkernel(boot_command_line, free_mem,
+			&crash_size, &crash_base);
+	if (ret == 0 && crash_size) {
+		if (crash_base <= 0) {
+			vp = alloc_bootmem_nopanic(crash_size);
+			if (!vp) {
+				printk(KERN_INFO "crashkernel allocation "
+				       "failed\n");
+				return;
+			}
+			crash_base = __pa(vp);
+		} else if (reserve_bootmem(crash_base, crash_size,
+					BOOTMEM_EXCLUSIVE) < 0) {
+			printk(KERN_INFO "crashkernel reservation failed - "
+					"memory is in use\n");
+			return;
 		}
+
+		printk(KERN_INFO "Reserving %ldMB of memory at %ldMB "
+				"for crashkernel (System RAM: %ldMB)\n",
+				(unsigned long)(crash_size >> 20),
+				(unsigned long)(crash_base >> 20),
+				(unsigned long)(free_mem >> 20));
+		crashk_res.start = crash_base;
+		crashk_res.end   = crash_base + crash_size - 1;
+		insert_resource(&iomem_resource, &crashk_res);
 	}
-	sh_mv = *mv;
-#endif
-#ifdef CONFIG_SH_UNKNOWN
-	sh_mv = mv_unknown;
+}
+#else
+static inline void __init reserve_crashkernel(void)
+{}
 #endif
 
+void __cpuinit calibrate_delay(void)
+{
+	struct clk *clk = clk_get(NULL, "cpu_clk");
+
+	if (IS_ERR(clk))
+		panic("Need a sane CPU clock definition!");
+
+	loops_per_jiffy = (clk_get_rate(clk) >> 1) / HZ;
+
+	printk(KERN_INFO "Calibrating delay loop (skipped)... "
+			 "%lu.%02lu BogoMIPS PRESET (lpj=%lu)\n",
+			 loops_per_jiffy/(500000/HZ),
+			 (loops_per_jiffy/(5000/HZ)) % 100,
+			 loops_per_jiffy);
+}
+
+void __init __add_active_range(unsigned int nid, unsigned long start_pfn,
+						unsigned long end_pfn)
+{
+	struct resource *res = &mem_resources[nid];
+
+	WARN_ON(res->name); /* max one active range per node for now */
+
+	res->name = "System RAM";
+	res->start = start_pfn << PAGE_SHIFT;
+	res->end = (end_pfn << PAGE_SHIFT) - 1;
+	res->flags = IORESOURCE_MEM | IORESOURCE_BUSY;
+	if (request_resource(&iomem_resource, res)) {
+		pr_err("unable to request memory_resource 0x%lx 0x%lx\n",
+		       start_pfn, end_pfn);
+		return;
+	}
+
 	/*
-	 * Manually walk the vec, fill in anything that the board hasn't yet
-	 * by hand, wrapping to the generic implementation.
+	 *  We don't know which RAM region contains kernel data,
+	 *  so we try it repeatedly and let the resource manager
+	 *  test it.
+	 */
+	request_resource(res, &code_resource);
+	request_resource(res, &data_resource);
+	request_resource(res, &bss_resource);
+
+	add_active_range(nid, start_pfn, end_pfn);
+}
+
+void __init setup_bootmem_allocator(unsigned long free_pfn)
+{
+	unsigned long bootmap_size;
+
+	/*
+	 * Find a proper area for the bootmem bitmap. After this
+	 * bootstrap step all allocations (until the page allocator
+	 * is intact) must be done via bootmem_alloc().
 	 */
-#define mv_set(elem) do { \
-	if (!sh_mv.mv_##elem) \
-		sh_mv.mv_##elem = generic_##elem; \
-} while (0)
+	bootmap_size = init_bootmem_node(NODE_DATA(0), free_pfn,
+					 min_low_pfn, max_low_pfn);
 
-	mv_set(inb);	mv_set(inw);	mv_set(inl);
-	mv_set(outb);	mv_set(outw);	mv_set(outl);
+	__add_active_range(0, min_low_pfn, max_low_pfn);
+	register_bootmem_low_pages();
 
-	mv_set(inb_p);	mv_set(inw_p);	mv_set(inl_p);
-	mv_set(outb_p);	mv_set(outw_p);	mv_set(outl_p);
+	node_set_online(0);
 
-	mv_set(insb);	mv_set(insw);	mv_set(insl);
-	mv_set(outsb);	mv_set(outsw);	mv_set(outsl);
+	/*
+	 * Reserve the kernel text and
+	 * Reserve the bootmem bitmap. We do this in two steps (first step
+	 * was init_bootmem()), because this catches the (definitely buggy)
+	 * case of us accidentally initializing the bootmem allocator with
+	 * an invalid RAM area.
+	 */
+	reserve_bootmem(__MEMORY_START + CONFIG_ZERO_PAGE_OFFSET,
+			(PFN_PHYS(free_pfn) + bootmap_size + PAGE_SIZE - 1) -
+			(__MEMORY_START + CONFIG_ZERO_PAGE_OFFSET),
+			BOOTMEM_DEFAULT);
+
+	/*
+	 * Reserve physical pages below CONFIG_ZERO_PAGE_OFFSET.
+	 */
+	if (CONFIG_ZERO_PAGE_OFFSET != 0)
+		reserve_bootmem(__MEMORY_START, CONFIG_ZERO_PAGE_OFFSET,
+				BOOTMEM_DEFAULT);
 
-	mv_set(readb);	mv_set(readw);	mv_set(readl);
-	mv_set(writeb);	mv_set(writew);	mv_set(writel);
+	sparse_memory_present_with_active_regions(0);
 
-	mv_set(ioremap);
-	mv_set(iounmap);
+#ifdef CONFIG_BLK_DEV_INITRD
+	ROOT_DEV = Root_RAM0;
 
-	mv_set(isa_port2addr);
-	mv_set(irq_demux);
+	if (LOADER_TYPE && INITRD_START) {
+		unsigned long initrd_start_phys = INITRD_START + __MEMORY_START;
 
-#ifdef CONFIG_SH_UNKNOWN
-	__set_io_port_base(mv_io_base);
+		if (initrd_start_phys + INITRD_SIZE <= PFN_PHYS(max_low_pfn)) {
+			reserve_bootmem(initrd_start_phys, INITRD_SIZE,
+					BOOTMEM_DEFAULT);
+			initrd_start = (unsigned long)__va(initrd_start_phys);
+			initrd_end = initrd_start + INITRD_SIZE;
+		} else {
+			printk("initrd extends beyond end of memory "
+			       "(0x%08lx > 0x%08lx)\ndisabling initrd\n",
+			       initrd_start_phys + INITRD_SIZE,
+			       (unsigned long)PFN_PHYS(max_low_pfn));
+			initrd_start = 0;
+		}
+	}
 #endif
 
-	return 0;
+	reserve_crashkernel();
 }
 
-void __init setup_arch(char **cmdline_p)
+#ifndef CONFIG_NEED_MULTIPLE_NODES
+static void __init setup_memory(void)
 {
-	unsigned long bootmap_size;
-	unsigned long start_pfn, max_pfn, max_low_pfn;
-
-#ifdef CONFIG_EARLY_PRINTK
-	extern void enable_early_printk(void);
+	unsigned long start_pfn;
 
-	enable_early_printk();
+	/*
+	 * Partially used pages are not usable - thus
+	 * we are rounding upwards:
+	 */
+	start_pfn = PFN_UP(__pa(_end));
+	setup_bootmem_allocator(start_pfn);
+}
+#else
+extern void __init setup_memory(void);
 #endif
-#ifdef CONFIG_CMDLINE_BOOL
-        strcpy(COMMAND_LINE, CONFIG_CMDLINE);
+
+/*
+ * Note: elfcorehdr_addr is not just limited to vmcore. It is also used by
+ * is_kdump_kernel() to determine if we are booting after a panic. Hence
+ * ifdef it under CONFIG_CRASH_DUMP and not CONFIG_PROC_VMCORE.
+ */
+#ifdef CONFIG_CRASH_DUMP
+/* elfcorehdr= specifies the location of elf core header
+ * stored by the crashed kernel.
+ */
+static int __init parse_elfcorehdr(char *arg)
+{
+	if (!arg)
+		return -EINVAL;
+	elfcorehdr_addr = memparse(arg, &arg);
+	return 0;
+}
+early_param("elfcorehdr", parse_elfcorehdr);
 #endif
 
+void __init __attribute__ ((weak)) plat_early_device_setup(void)
+{
+}
+
+void __init setup_arch(char **cmdline_p)
+{
+	enable_mmu();
+
 	ROOT_DEV = old_decode_dev(ORIG_ROOT_DEV);
 
+	printk(KERN_NOTICE "Boot params:\n"
+			   "... MOUNT_ROOT_RDONLY - %08lx\n"
+			   "... RAMDISK_FLAGS     - %08lx\n"
+			   "... ORIG_ROOT_DEV     - %08lx\n"
+			   "... LOADER_TYPE       - %08lx\n"
+			   "... INITRD_START      - %08lx\n"
+			   "... INITRD_SIZE       - %08lx\n",
+			   MOUNT_ROOT_RDONLY, RAMDISK_FLAGS,
+			   ORIG_ROOT_DEV, LOADER_TYPE,
+			   INITRD_START, INITRD_SIZE);
+
 #ifdef CONFIG_BLK_DEV_RAM
 	rd_image_start = RAMDISK_FLAGS & RAMDISK_IMAGE_START_MASK;
 	rd_prompt = ((RAMDISK_FLAGS & RAMDISK_PROMPT_FLAG) != 0);
@@ -273,203 +361,134 @@ void __init setup_arch(char **cmdline_p)
 	init_mm.end_data = (unsigned long) _edata;
 	init_mm.brk = (unsigned long) _end;
 
-	code_resource.start = (unsigned long)virt_to_phys(_text);
-	code_resource.end = (unsigned long)virt_to_phys(_etext)-1;
-	data_resource.start = (unsigned long)virt_to_phys(_etext);
-	data_resource.end = (unsigned long)virt_to_phys(_edata)-1;
+	code_resource.start = virt_to_phys(_text);
+	code_resource.end = virt_to_phys(_etext)-1;
+	data_resource.start = virt_to_phys(_etext);
+	data_resource.end = virt_to_phys(_edata)-1;
+	bss_resource.start = virt_to_phys(__bss_start);
+	bss_resource.end = virt_to_phys(_ebss)-1;
 
-	sh_mv_setup(cmdline_p);
+	memory_start = (unsigned long)__va(__MEMORY_START);
+	if (!memory_end)
+		memory_end = memory_start + __MEMORY_SIZE;
 
-#define PFN_UP(x)	(((x) + PAGE_SIZE-1) >> PAGE_SHIFT)
-#define PFN_DOWN(x)	((x) >> PAGE_SHIFT)
-#define PFN_PHYS(x)	((x) << PAGE_SHIFT)
+#ifdef CONFIG_CMDLINE_BOOL
+	strlcpy(command_line, CONFIG_CMDLINE, sizeof(command_line));
+#else
+	strlcpy(command_line, COMMAND_LINE, sizeof(command_line));
+#endif
 
-	/*
-	 * Find the highest page frame number we have available
-	 */
-	max_pfn = PFN_DOWN(__pa(memory_end));
+	/* Save unparsed command line copy for /proc/cmdline */
+	memcpy(boot_command_line, command_line, COMMAND_LINE_SIZE);
+	*cmdline_p = command_line;
 
-	/*
-	 * Determine low and high memory ranges:
-	 */
-	max_low_pfn = max_pfn;
+	parse_early_param();
 
-	/*
-	 * Partially used pages are not usable - thus
-	 * we are rounding upwards:
-	 */
-	start_pfn = PFN_UP(__pa(_end));
+	plat_early_device_setup();
 
-	/*
-	 * Find a proper area for the bootmem bitmap. After this
-	 * bootstrap step all allocations (until the page allocator
-	 * is intact) must be done via bootmem_alloc().
-	 */
-	bootmap_size = init_bootmem_node(NODE_DATA(0), start_pfn,
-					 __MEMORY_START>>PAGE_SHIFT,
-					 max_low_pfn);
-	/*
-	 * Register fully available low RAM pages with the bootmem allocator.
-	 */
-	{
-		unsigned long curr_pfn, last_pfn, pages;
-
-		/*
-		 * We are rounding up the start address of usable memory:
-		 */
-		curr_pfn = PFN_UP(__MEMORY_START);
-		/*
-		 * ... and at the end of the usable range downwards:
-		 */
-		last_pfn = PFN_DOWN(__pa(memory_end));
-
-		if (last_pfn > max_low_pfn)
-			last_pfn = max_low_pfn;
-
-		pages = last_pfn - curr_pfn;
-		free_bootmem_node(NODE_DATA(0), PFN_PHYS(curr_pfn),
-				  PFN_PHYS(pages));
-	}
+	sh_mv_setup();
 
 	/*
-	 * Reserve the kernel text and
-	 * Reserve the bootmem bitmap. We do this in two steps (first step
-	 * was init_bootmem()), because this catches the (definitely buggy)
-	 * case of us accidentally initializing the bootmem allocator with
-	 * an invalid RAM area.
+	 * Find the highest page frame number we have available
 	 */
-	reserve_bootmem_node(NODE_DATA(0), __MEMORY_START+PAGE_SIZE,
-		(PFN_PHYS(start_pfn)+bootmap_size+PAGE_SIZE-1)-__MEMORY_START);
+	max_pfn = PFN_DOWN(__pa(memory_end));
 
 	/*
-	 * reserve physical page 0 - it's a special BIOS page on many boxes,
-	 * enabling clean reboots, SMP operation, laptop functions.
+	 * Determine low and high memory ranges:
 	 */
-	reserve_bootmem_node(NODE_DATA(0), __MEMORY_START, PAGE_SIZE);
+	max_low_pfn = max_pfn;
+	min_low_pfn = __MEMORY_START >> PAGE_SHIFT;
 
-#ifdef CONFIG_BLK_DEV_INITRD
-	ROOT_DEV = MKDEV(RAMDISK_MAJOR, 0);
-	if (&__rd_start != &__rd_end) {
-		LOADER_TYPE = 1;
-		INITRD_START = PHYSADDR((unsigned long)&__rd_start) - __MEMORY_START;
-		INITRD_SIZE = (unsigned long)&__rd_end - (unsigned long)&__rd_start;
-	}
+	nodes_clear(node_online_map);
 
-	if (LOADER_TYPE && INITRD_START) {
-		if (INITRD_START + INITRD_SIZE <= (max_low_pfn << PAGE_SHIFT)) {
-			reserve_bootmem_node(NODE_DATA(0), INITRD_START+__MEMORY_START, INITRD_SIZE);
-			initrd_start =
-				INITRD_START ? INITRD_START + PAGE_OFFSET + __MEMORY_START : 0;
-			initrd_end = initrd_start + INITRD_SIZE;
-		} else {
-			printk("initrd extends beyond end of memory "
-			    "(0x%08lx > 0x%08lx)\ndisabling initrd\n",
-				    INITRD_START + INITRD_SIZE,
-				    max_low_pfn << PAGE_SHIFT);
-			initrd_start = 0;
-		}
-	}
-#endif
+	/* Setup bootmem with available RAM */
+	setup_memory();
+	sparse_init();
 
 #ifdef CONFIG_DUMMY_CONSOLE
 	conswitchp = &dummy_con;
 #endif
 
 	/* Perform the machine specific initialisation */
-	platform_setup();
+	if (likely(sh_mv.mv_setup))
+		sh_mv.mv_setup(cmdline_p);
 
 	paging_init();
-}
 
-struct sh_machine_vector* __init get_mv_byname(const char* name)
-{
-	extern int strcasecmp(const char *, const char *);
-	extern long __machvec_start, __machvec_end;
-	struct sh_machine_vector *all_vecs =
-		(struct sh_machine_vector *)&__machvec_start;
-
-	int i, n = ((unsigned long)&__machvec_end
-		    - (unsigned long)&__machvec_start)/
-		sizeof(struct sh_machine_vector);
-
-	for (i = 0; i < n; ++i) {
-		struct sh_machine_vector *mv = &all_vecs[i];
-		if (mv == NULL)
-			continue;
-		if (strcasecmp(name, get_system_type()) == 0) {
-			return mv;
-		}
-	}
-	return NULL;
+#ifdef CONFIG_SMP
+	plat_smp_setup();
+#endif
 }
 
-static struct cpu cpu[NR_CPUS];
-
-static int __init topology_init(void)
+/* processor boot mode configuration */
+int generic_mode_pins(void)
 {
-	int cpu_id;
-
-	for (cpu_id = 0; cpu_id < NR_CPUS; cpu_id++)
-		if (cpu_possible(cpu_id))
-			register_cpu(&cpu[cpu_id], cpu_id, NULL);
-
+	pr_warning("generic_mode_pins(): missing mode pin configuration\n");
 	return 0;
 }
 
-subsys_initcall(topology_init);
+int test_mode_pin(int pin)
+{
+	return sh_mv.mv_mode_pins() & pin;
+}
 
 static const char *cpu_name[] = {
-	[CPU_SH7604]	= "SH7604",
-	[CPU_SH7705]	= "SH7705",
-	[CPU_SH7708]	= "SH7708",
-	[CPU_SH7729]	= "SH7729",
-	[CPU_SH7300]	= "SH7300",
-	[CPU_SH7750]	= "SH7750",
-	[CPU_SH7750S]	= "SH7750S",
-	[CPU_SH7750R]	= "SH7750R",
-	[CPU_SH7751]	= "SH7751",
-	[CPU_SH7751R]	= "SH7751R",
-	[CPU_SH7760]	= "SH7760",
-	[CPU_SH73180]	= "SH73180",
-	[CPU_ST40RA]	= "ST40RA",
-	[CPU_ST40GX1]	= "ST40GX1",
-	[CPU_SH4_202]	= "SH4-202",
-	[CPU_SH4_501]	= "SH4-501",
-	[CPU_SH7770]	= "SH7770",
-	[CPU_SH7780]	= "SH7780",
-	[CPU_SH7781]	= "SH7781",
+	[CPU_SH7201]	= "SH7201",
+	[CPU_SH7203]	= "SH7203",	[CPU_SH7263]	= "SH7263",
+	[CPU_SH7206]	= "SH7206",	[CPU_SH7619]	= "SH7619",
+	[CPU_SH7705]	= "SH7705",	[CPU_SH7706]	= "SH7706",
+	[CPU_SH7707]	= "SH7707",	[CPU_SH7708]	= "SH7708",
+	[CPU_SH7709]	= "SH7709",	[CPU_SH7710]	= "SH7710",
+	[CPU_SH7712]	= "SH7712",	[CPU_SH7720]	= "SH7720",
+	[CPU_SH7721]	= "SH7721",	[CPU_SH7729]	= "SH7729",
+	[CPU_SH7750]	= "SH7750",	[CPU_SH7750S]	= "SH7750S",
+	[CPU_SH7750R]	= "SH7750R",	[CPU_SH7751]	= "SH7751",
+	[CPU_SH7751R]	= "SH7751R",	[CPU_SH7760]	= "SH7760",
+	[CPU_SH4_202]	= "SH4-202",	[CPU_SH4_501]	= "SH4-501",
+	[CPU_SH7763]	= "SH7763",	[CPU_SH7770]	= "SH7770",
+	[CPU_SH7780]	= "SH7780",	[CPU_SH7781]	= "SH7781",
+	[CPU_SH7343]	= "SH7343",	[CPU_SH7785]	= "SH7785",
+	[CPU_SH7786]	= "SH7786",
+	[CPU_SH7722]	= "SH7722",	[CPU_SHX3]	= "SH-X3",
+	[CPU_SH5_101]	= "SH5-101",	[CPU_SH5_103]	= "SH5-103",
+	[CPU_MXG]	= "MX-G",	[CPU_SH7723]	= "SH7723",
+	[CPU_SH7366]	= "SH7366",	[CPU_SH7724]	= "SH7724",
 	[CPU_SH_NONE]	= "Unknown"
 };
 
-const char *get_cpu_subtype(void)
+const char *get_cpu_subtype(struct sh_cpuinfo *c)
 {
-	return cpu_name[boot_cpu_data.type];
+	return cpu_name[c->type];
 }
+EXPORT_SYMBOL(get_cpu_subtype);
 
 #ifdef CONFIG_PROC_FS
+/* Symbolic CPU flags, keep in sync with asm/cpu-features.h */
 static const char *cpu_flags[] = {
-	"none", "fpu", "p2flush", "mmuassoc", "dsp", "perfctr", "ptea", NULL
+	"none", "fpu", "p2flush", "mmuassoc", "dsp", "perfctr",
+	"ptea", "llsc", "l2", "op32", "pteaex", NULL
 };
 
-static void show_cpuflags(struct seq_file *m)
+static void show_cpuflags(struct seq_file *m, struct sh_cpuinfo *c)
 {
 	unsigned long i;
 
 	seq_printf(m, "cpu flags\t:");
 
-	if (!cpu_data->flags) {
+	if (!c->flags) {
 		seq_printf(m, " %s\n", cpu_flags[0]);
 		return;
 	}
 
 	for (i = 0; cpu_flags[i]; i++)
-		if ((cpu_data->flags & (1 << i)))
+		if ((c->flags & (1 << i)))
 			seq_printf(m, " %s", cpu_flags[i+1]);
 
 	seq_printf(m, "\n");
 }
 
-static void show_cacheinfo(struct seq_file *m, const char *type, struct cache_info info)
+static void show_cacheinfo(struct seq_file *m, const char *type,
+			   struct cache_info info)
 {
 	unsigned int cache_size;
 
@@ -484,16 +503,26 @@ static void show_cacheinfo(struct seq_file *m, const char *type, struct cache_in
  */
 static int show_cpuinfo(struct seq_file *m, void *v)
 {
-	unsigned int cpu = smp_processor_id();
+	struct sh_cpuinfo *c = v;
+	unsigned int cpu = c - cpu_data;
 
-	if (!cpu && cpu_online(cpu))
+	if (!cpu_online(cpu))
+		return 0;
+
+	if (cpu == 0)
 		seq_printf(m, "machine\t\t: %s\n", get_system_type());
 
 	seq_printf(m, "processor\t: %d\n", cpu);
-	seq_printf(m, "cpu family\t: %s\n", system_utsname.machine);
-	seq_printf(m, "cpu type\t: %s\n", get_cpu_subtype());
+	seq_printf(m, "cpu family\t: %s\n", init_utsname()->machine);
+	seq_printf(m, "cpu type\t: %s\n", get_cpu_subtype(c));
+	if (c->cut_major == -1)
+		seq_printf(m, "cut\t\t: unknown\n");
+	else if (c->cut_minor == -1)
+		seq_printf(m, "cut\t\t: %d.x\n", c->cut_major);
+	else
+		seq_printf(m, "cut\t\t: %d.%d\n", c->cut_major, c->cut_minor);
 
-	show_cpuflags(m);
+	show_cpuflags(m, c);
 
 	seq_printf(m, "cache type\t: ");
 
@@ -502,20 +531,24 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 	 * unified cache on the SH-2 and SH-3, as well as the harvard
 	 * style cache on the SH-4.
 	 */
-	if (test_bit(SH_CACHE_COMBINED, &(boot_cpu_data.icache.flags))) {
+	if (c->icache.flags & SH_CACHE_COMBINED) {
 		seq_printf(m, "unified\n");
-		show_cacheinfo(m, "cache", boot_cpu_data.icache);
+		show_cacheinfo(m, "cache", c->icache);
 	} else {
 		seq_printf(m, "split (harvard)\n");
-		show_cacheinfo(m, "icache", boot_cpu_data.icache);
-		show_cacheinfo(m, "dcache", boot_cpu_data.dcache);
+		show_cacheinfo(m, "icache", c->icache);
+		show_cacheinfo(m, "dcache", c->dcache);
 	}
 
+	/* Optional secondary cache */
+	if (c->flags & CPU_HAS_L2_CACHE)
+		show_cacheinfo(m, "scache", c->scache);
+
 	seq_printf(m, "bogomips\t: %lu.%02lu\n",
-		     boot_cpu_data.loops_per_jiffy/(500000/HZ),
-		     (boot_cpu_data.loops_per_jiffy/(5000/HZ)) % 100);
+		     c->loops_per_jiffy/(500000/HZ),
+		     (c->loops_per_jiffy/(5000/HZ)) % 100);
 
-	return show_clocks(m);
+	return 0;
 }
 
 static void *c_start(struct seq_file *m, loff_t *pos)
@@ -530,7 +563,7 @@ static void *c_next(struct seq_file *m, void *v, loff_t *pos)
 static void c_stop(struct seq_file *m, void *v)
 {
 }
-struct seq_operations cpuinfo_op = {
+const struct seq_operations cpuinfo_op = {
 	.start	= c_start,
 	.next	= c_next,
 	.stop	= c_stop,
@@ -538,92 +571,16 @@ struct seq_operations cpuinfo_op = {
 };
 #endif /* CONFIG_PROC_FS */
 
-#ifdef CONFIG_SH_KGDB
-/*
- * Parse command-line kgdb options.  By default KGDB is enabled,
- * entered on error (or other action) using default serial info.
- * The command-line option can include a serial port specification
- * and an action to override default or configured behavior.
- */
-struct kgdb_sermap kgdb_sci_sermap =
-{ "ttySC", 5, kgdb_sci_setup, NULL };
-
-struct kgdb_sermap *kgdb_serlist = &kgdb_sci_sermap;
-struct kgdb_sermap *kgdb_porttype = &kgdb_sci_sermap;
+struct dentry *sh_debugfs_root;
 
-void kgdb_register_sermap(struct kgdb_sermap *map)
+static int __init sh_debugfs_init(void)
 {
-	struct kgdb_sermap *last;
-
-	for (last = kgdb_serlist; last->next; last = last->next)
-		;
-	last->next = map;
-	if (!map->namelen) {
-		map->namelen = strlen(map->name);
-	}
-}
-
-static int __init kgdb_parse_options(char *options)
-{
-	char c;
-	int baud;
-
-	/* Check for port spec (or use default) */
-
-	/* Determine port type and instance */
-	if (!memcmp(options, "tty", 3)) {
-		struct kgdb_sermap *map = kgdb_serlist;
-
-		while (map && memcmp(options, map->name, map->namelen))
-			map = map->next;
-
-		if (!map) {
-			KGDB_PRINTK("unknown port spec in %s\n", options);
-			return -1;
-		}
-
-		kgdb_porttype = map;
-		kgdb_serial_setup = map->setup_fn;
-		kgdb_portnum = options[map->namelen] - '0';
-		options += map->namelen + 1;
-
-		options = (*options == ',') ? options+1 : options;
+	sh_debugfs_root = debugfs_create_dir("sh", NULL);
+	if (!sh_debugfs_root)
+		return -ENOMEM;
+	if (IS_ERR(sh_debugfs_root))
+		return PTR_ERR(sh_debugfs_root);
 
-		/* Read optional parameters (baud/parity/bits) */
-		baud = simple_strtoul(options, &options, 10);
-		if (baud != 0) {
-			kgdb_baud = baud;
-
-			c = toupper(*options);
-			if (c == 'E' || c == 'O' || c == 'N') {
-				kgdb_parity = c;
-				options++;
-			}
-
-			c = *options;
-			if (c == '7' || c == '8') {
-				kgdb_bits = c;
-				options++;
-			}
-			options = (*options == ',') ? options+1 : options;
-		}
-	}
-
-	/* Check for action specification */
-	if (!memcmp(options, "halt", 4)) {
-		kgdb_halt = 1;
-		options += 4;
-	} else if (!memcmp(options, "disabled", 8)) {
-		kgdb_enabled = 0;
-		options += 8;
-	}
-
-	if (*options) {
-                KGDB_PRINTK("ignored unknown options: %s\n", options);
-		return 0;
-	}
-	return 1;
+	return 0;
 }
-__setup("kgdb=", kgdb_parse_options);
-#endif /* CONFIG_SH_KGDB */
-
+arch_initcall(sh_debugfs_init);