1 files changed, 38 insertions, 172 deletions

diff --git a/arch/sh/kernel/setup.c b/arch/sh/kernel/setup.c
index c2772913593..de8e6e2f2c8 100644
--- a/arch/sh/kernel/setup.c
+++ b/arch/sh/kernel/setup.c
@@ -23,6 +23,7 @@
 #include <linux/kexec.h>
 #include <asm/uaccess.h>
 #include <asm/io.h>
+#include <asm/page.h>
 #include <asm/sections.h>
 #include <asm/irq.h>
 #include <asm/setup.h>
@@ -41,20 +42,19 @@ extern void * __rd_start, * __rd_end;
  * The bigger value means no problem.
  */
 struct sh_cpuinfo boot_cpu_data = { CPU_SH_NONE, 10000000, };
+
+/*
+ * The machine vector. First entry in .machvec.init, or clobbered by
+ * sh_mv= on the command line, prior to .machvec.init teardown.
+ */
+struct sh_machine_vector sh_mv = { .mv_name = "generic", };
+
 #ifdef CONFIG_VT
 struct screen_info screen_info;
 #endif
 
-#if defined(CONFIG_SH_UNKNOWN)
-struct sh_machine_vector sh_mv;
-#endif
-
 extern int root_mountflags;
 
-#define MV_NAME_SIZE 32
-
-static struct sh_machine_vector* __init get_mv_byname(const char* name);
-
 /*
  * This is set up by the setup-routine at boot-time
  */
@@ -80,131 +80,17 @@ static struct resource data_resource = { .name = "Kernel data", };
 
 unsigned long memory_start, 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)
+static int __init early_parse_mem(char *p)
 {
-        char c = ' ', *to = command_line, *from = COMMAND_LINE;
-        int len = 0;
-
-        /* Save unparsed command line copy for /proc/cmdline */
-        memcpy(boot_command_line, COMMAND_LINE, COMMAND_LINE_SIZE);
-        boot_command_line[COMMAND_LINE_SIZE-1] = '\0';
+        unsigned long size;
 
         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_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;
-
-                        *mvp = get_mv_byname(mv_name);
-                }
-
-                c = *(from++);
-                if (!c)
-                        break;
-                if (COMMAND_LINE_SIZE <= ++len)
-                        break;
-                *(to++) = c;
-        }
-        *to = '\0';
-        *cmdline_p = command_line;
-}
-
-static int __init sh_mv_setup(char **cmdline_p)
-{
-#ifdef 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;
-
-        parse_cmdline(cmdline_p, mv_name, &mv, &mv_io_base);
-
-#ifdef CONFIG_SH_UNKNOWN
-        if (mv == NULL) {
-                mv = &mv_unknown;
-                if (*mv_name != '\0') {
-                        printk("Warning: Unsupported machine %s, using unknown\n",
-                               mv_name);
-                }
-        }
-        sh_mv = *mv;
-#endif
-
-        /*
-         * Manually walk the vec, fill in anything that the board hasn't yet
-         * by hand, wrapping to the generic implementation.
-         */
-#define mv_set(elem) do { \
-        if (!sh_mv.mv_##elem) \
-                sh_mv.mv_##elem = generic_##elem; \
-} while (0)
-
-        mv_set(inb);    mv_set(inw);    mv_set(inl);
-        mv_set(outb);   mv_set(outw);   mv_set(outl);
-
-        mv_set(inb_p);  mv_set(inw_p);  mv_set(inl_p);
-        mv_set(outb_p); mv_set(outw_p); mv_set(outl_p);
-
-        mv_set(insb);   mv_set(insw);   mv_set(insl);
-        mv_set(outsb);  mv_set(outsw);  mv_set(outsl);
-
-        mv_set(readb);  mv_set(readw);  mv_set(readl);
-        mv_set(writeb); mv_set(writew); mv_set(writel);
-
-        mv_set(ioport_map);
-        mv_set(ioport_unmap);
-        mv_set(irq_demux);
-
-#ifdef CONFIG_SH_UNKNOWN
-        __set_io_port_base(mv_io_base);
-#endif
-
-        if (!sh_mv.mv_nr_irqs)
-                sh_mv.mv_nr_irqs = NR_IRQS;
+        size = memparse(p, &p);
+        memory_end = memory_start + size;
 
         return 0;
 }
+early_param("mem", early_parse_mem);
 
 /*
  * Register fully available low RAM pages with the bootmem allocator.
@@ -230,7 +116,7 @@ static void __init register_bootmem_low_pages(void)
         free_bootmem(PFN_PHYS(curr_pfn), PFN_PHYS(pages));
 }
 
-void __init setup_bootmem_allocator(unsigned long start_pfn)
+void __init setup_bootmem_allocator(unsigned long free_pfn)
 {
         unsigned long bootmap_size;
 
@@ -239,9 +125,10 @@ void __init setup_bootmem_allocator(unsigned long start_pfn)
          * 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,
+        bootmap_size = init_bootmem_node(NODE_DATA(0), free_pfn,
                                          min_low_pfn, max_low_pfn);
 
+        add_active_range(0, min_low_pfn, max_low_pfn);
         register_bootmem_low_pages();
 
         node_set_online(0);
@@ -254,7 +141,7 @@ void __init setup_bootmem_allocator(unsigned long start_pfn)
          * an invalid RAM area.
          */
         reserve_bootmem(__MEMORY_START+PAGE_SIZE,
-                (PFN_PHYS(start_pfn)+bootmap_size+PAGE_SIZE-1)-__MEMORY_START);
+                (PFN_PHYS(free_pfn)+bootmap_size+PAGE_SIZE-1)-__MEMORY_START);
 
         /*
          * reserve physical page 0 - it's a special BIOS page on many boxes,
@@ -262,6 +149,8 @@ void __init setup_bootmem_allocator(unsigned long start_pfn)
          */
         reserve_bootmem(__MEMORY_START, PAGE_SIZE);
 
+        sparse_memory_present_with_active_regions(0);
+
 #ifdef CONFIG_BLK_DEV_INITRD
         ROOT_DEV = MKDEV(RAMDISK_MAJOR, 0);
         if (&__rd_start != &__rd_end) {
@@ -315,10 +204,6 @@ void __init setup_arch(char **cmdline_p)
 {
         enable_mmu();
 
-#ifdef CONFIG_CMDLINE_BOOL
-        strcpy(COMMAND_LINE, CONFIG_CMDLINE);
-#endif
-
         ROOT_DEV = old_decode_dev(ORIG_ROOT_DEV);
 
 #ifdef CONFIG_BLK_DEV_RAM
@@ -339,9 +224,22 @@ void __init setup_arch(char **cmdline_p)
         data_resource.start = virt_to_phys(_etext);
         data_resource.end = virt_to_phys(_edata)-1;
 
+        memory_start = (unsigned long)PAGE_OFFSET+__MEMORY_START;
+        memory_end = memory_start + __MEMORY_SIZE;
+
+#ifdef CONFIG_CMDLINE_BOOL
+        strlcpy(command_line, CONFIG_CMDLINE, sizeof(command_line));
+#else
+        strlcpy(command_line, COMMAND_LINE, sizeof(command_line));
+#endif
+
+        /* Save unparsed command line copy for /proc/cmdline */
+        memcpy(boot_command_line, command_line, COMMAND_LINE_SIZE);
+        *cmdline_p = command_line;
+
         parse_early_param();
 
-        sh_mv_setup(cmdline_p);
+        sh_mv_setup();
 
         /*
          * Find the highest page frame number we have available
@@ -355,8 +253,9 @@ void __init setup_arch(char **cmdline_p)
         min_low_pfn = __MEMORY_START >> PAGE_SHIFT;
 
         nodes_clear(node_online_map);
+
+        /* Setup bootmem with available RAM */
         setup_memory();
-        paging_init();
         sparse_init();
 
 #ifdef CONFIG_DUMMY_CONSOLE
@@ -366,46 +265,13 @@ void __init setup_arch(char **cmdline_p)
         /* Perform the machine specific initialisation */
         if (likely(sh_mv.mv_setup))
                 sh_mv.mv_setup(cmdline_p);
-}
-
-struct sh_machine_vector* __init get_mv_byname(const char* name)
-{
-        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;
-}
-
-static struct cpu cpu[NR_CPUS];
-
-static int __init topology_init(void)
-{
-        int cpu_id;
 
-        for_each_possible_cpu(cpu_id)
-                register_cpu(&cpu[cpu_id], cpu_id);
-
-        return 0;
+        paging_init();
 }
 
-subsys_initcall(topology_init);
-
 static const char *cpu_name[] = {
         [CPU_SH7206]    = "SH7206",     [CPU_SH7619]    = "SH7619",
-        [CPU_SH7604]    = "SH7604",     [CPU_SH7300]    = "SH7300",
+        [CPU_SH7300]    = "SH7300",
         [CPU_SH7705]    = "SH7705",     [CPU_SH7706]    = "SH7706",
         [CPU_SH7707]    = "SH7707",     [CPU_SH7708]    = "SH7708",
         [CPU_SH7709]    = "SH7709",     [CPU_SH7710]    = "SH7710",
@@ -419,7 +285,7 @@ static const char *cpu_name[] = {
         [CPU_SH7770]    = "SH7770",     [CPU_SH7780]    = "SH7780",
         [CPU_SH7781]    = "SH7781",     [CPU_SH7343]    = "SH7343",
         [CPU_SH7785]    = "SH7785",     [CPU_SH7722]    = "SH7722",
-        [CPU_SH_NONE]   = "Unknown"
+        [CPU_SHX3]      = "SH-X3",      [CPU_SH_NONE]   = "Unknown"
 };
 
 const char *get_cpu_subtype(struct sh_cpuinfo *c)