Merge branch 'for-rmk' of git://git.pengutronix.de/git/ukl/linux-2.6 into devel

[linux-2.6-omap-h63xx.git] / arch / arm / kernel / setup.c

diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 1f1eecca7f55a4ef2ff3b502c360309da00d3010..7049815d66d566e7d89c08fd3c25e33b8c48c995 100644 (file)
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -29,6 +29,7 @@
 #include <asm/cputype.h>
 #include <asm/elf.h>
 #include <asm/procinfo.h>
+#include <asm/sections.h>
 #include <asm/setup.h>
 #include <asm/mach-types.h>
 #include <asm/cacheflush.h>
@@ -59,9 +60,8 @@ static int __init fpe_setup(char *line)
 __setup("fpe=", fpe_setup);
 #endif
 
-extern void paging_init(struct meminfo *, struct machine_desc *desc);
+extern void paging_init(struct machine_desc *desc);
 extern void reboot_setup(char *str);
-extern void _text, _etext, __data_start, _edata, _end;
 
 unsigned int processor_id;
 EXPORT_SYMBOL(processor_id);
@@ -112,7 +112,6 @@ static struct stack stacks[NR_CPUS];
 char elf_platform[ELF_PLATFORM_SIZE];
 EXPORT_SYMBOL(elf_platform);
 
-static struct meminfo meminfo __initdata = { 0, };
 static const char *cpu_name;
 static const char *machine_name;
 static char __initdata command_line[COMMAND_LINE_SIZE];
@@ -367,21 +366,34 @@ static struct machine_desc * __init setup_machine(unsigned int nr)
        return list;
 }
 
-static void __init arm_add_memory(unsigned long start, unsigned long size)
+static int __init arm_add_memory(unsigned long start, unsigned long size)
 {
-       struct membank *bank;
+       struct membank *bank = &meminfo.bank[meminfo.nr_banks];
+
+       if (meminfo.nr_banks >= NR_BANKS) {
+               printk(KERN_CRIT "NR_BANKS too low, "
+                       "ignoring memory at %#lx\n", start);
+               return -EINVAL;
+       }
 
        /*
         * Ensure that start/size are aligned to a page boundary.
         * Size is appropriately rounded down, start is rounded up.
         */
        size -= start & ~PAGE_MASK;
-
-       bank = &meminfo.bank[meminfo.nr_banks++];
-
        bank->start = PAGE_ALIGN(start);
        bank->size  = size & PAGE_MASK;
        bank->node  = PHYS_TO_NID(start);
+
+       /*
+        * Check whether this memory region has non-zero size or
+        * invalid node number.
+        */
+       if (bank->size == 0 || bank->node >= MAX_NUMNODES)
+               return -EINVAL;
+
+       meminfo.nr_banks++;
+       return 0;
 }
 
 /*
@@ -472,10 +484,10 @@ request_standard_resources(struct meminfo *mi, struct machine_desc *mdesc)
        struct resource *res;
        int i;
 
-       kernel_code.start   = virt_to_phys(&_text);
-       kernel_code.end     = virt_to_phys(&_etext - 1);
-       kernel_data.start   = virt_to_phys(&__data_start);
-       kernel_data.end     = virt_to_phys(&_end - 1);
+       kernel_code.start   = virt_to_phys(_text);
+       kernel_code.end     = virt_to_phys(_etext - 1);
+       kernel_data.start   = virt_to_phys(_data);
+       kernel_data.end     = virt_to_phys(_end - 1);
 
        for (i = 0; i < mi->nr_banks; i++) {
                if (mi->bank[i].size == 0)
@@ -539,14 +551,7 @@ __tagtable(ATAG_CORE, parse_tag_core);
 
 static int __init parse_tag_mem32(const struct tag *tag)
 {
-       if (meminfo.nr_banks >= NR_BANKS) {
-               printk(KERN_WARNING
-                      "Ignoring memory bank 0x%08x size %dKB\n",
-                       tag->u.mem.start, tag->u.mem.size / 1024);
-               return -EINVAL;
-       }
-       arm_add_memory(tag->u.mem.start, tag->u.mem.size);
-       return 0;
+       return arm_add_memory(tag->u.mem.start, tag->u.mem.size);
 }
 
 __tagtable(ATAG_MEM, parse_tag_mem32);
@@ -710,15 +715,15 @@ void __init setup_arch(char **cmdline_p)
                parse_tags(tags);
        }
 
-       init_mm.start_code = (unsigned long) &_text;
-       init_mm.end_code   = (unsigned long) &_etext;
-       init_mm.end_data   = (unsigned long) &_edata;
-       init_mm.brk        = (unsigned long) &_end;
+       init_mm.start_code = (unsigned long) _text;
+       init_mm.end_code   = (unsigned long) _etext;
+       init_mm.end_data   = (unsigned long) _edata;
+       init_mm.brk        = (unsigned long) _end;
 
        memcpy(boot_command_line, from, COMMAND_LINE_SIZE);
        boot_command_line[COMMAND_LINE_SIZE-1] = '\0';
        parse_cmdline(cmdline_p, from);
-       paging_init(&meminfo, mdesc);
+       paging_init(mdesc);
        request_standard_resources(&meminfo, mdesc);
 
 #ifdef CONFIG_SMP
@@ -772,6 +777,8 @@ static const char *hwcap_str[] = {
        "java",
        "iwmmxt",
        "crunch",
+       "thumbee",
+       "neon",
        NULL
 };