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authorLinus Torvalds <torvalds@linux-foundation.org>2010-03-01 09:15:15 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2010-03-01 09:15:15 -0800
commitac0f6f927db539e03e1f3f61bcd4ed57d5cde7a9 (patch)
tree816e5ac643b15c2050c64a7075f0f7e13d86ea09 /arch/arm/kernel/setup.c
parentb1bf9368407ae7e89d8a005bb40beb70a41df539 (diff)
parent9f33be2c3a80bdc2cc08342dd77fac87652e0548 (diff)
downloadop-kernel-dev-ac0f6f927db539e03e1f3f61bcd4ed57d5cde7a9.zip
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Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm: (100 commits) ARM: Eliminate decompressor -Dstatic= PIC hack ARM: 5958/1: ARM: U300: fix inverted clk round rate ARM: 5956/1: misplaced parentheses ARM: 5955/1: ep93xx: move timer defines into core.c and document ARM: 5954/1: ep93xx: move gpio interrupt support to gpio.c ARM: 5953/1: ep93xx: fix broken build of clock.c ARM: 5952/1: ARM: MM: Add ARM_L1_CACHE_SHIFT_6 for handle inside each ARCH Kconfig ARM: 5949/1: NUC900 add gpio virtual memory map ARM: 5948/1: Enable timer0 to time4 clock support for nuc910 ARM: 5940/2: ARM: MMCI: remove custom DBG macro and printk ARM: make_coherent(): fix problems with highpte, part 2 MM: Pass a PTE pointer to update_mmu_cache() rather than the PTE itself ARM: 5945/1: ep93xx: include correct irq.h in core.c ARM: 5933/1: amba-pl011: support hardware flow control ARM: 5930/1: Add PKMAP area description to memory.txt. ARM: 5929/1: Add checks to detect overlap of memory regions. ARM: 5928/1: Change type of VMALLOC_END to unsigned long. ARM: 5927/1: Make delimiters of DMA area globally visibly. ARM: 5926/1: Add "Virtual kernel memory..." printout. ARM: 5920/1: OMAP4: Enable L2 Cache ... Fix up trivial conflict in arch/arm/mach-mx25/clock.c
Diffstat (limited to 'arch/arm/kernel/setup.c')
-rw-r--r--arch/arm/kernel/setup.c79
1 files changed, 31 insertions, 48 deletions
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 621acad..c91c77b 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -24,6 +24,7 @@
#include <linux/interrupt.h>
#include <linux/smp.h>
#include <linux/fs.h>
+#include <linux/proc_fs.h>
#include <asm/unified.h>
#include <asm/cpu.h>
@@ -118,7 +119,7 @@ EXPORT_SYMBOL(elf_platform);
static const char *cpu_name;
static const char *machine_name;
-static char __initdata command_line[COMMAND_LINE_SIZE];
+static char __initdata cmd_line[COMMAND_LINE_SIZE];
static char default_command_line[COMMAND_LINE_SIZE] __initdata = CONFIG_CMDLINE;
static union { char c[4]; unsigned long l; } endian_test __initdata = { { 'l', '?', '?', 'b' } };
@@ -418,10 +419,11 @@ static int __init arm_add_memory(unsigned long start, unsigned long size)
* Pick out the memory size. We look for mem=size@start,
* where start and size are "size[KkMm]"
*/
-static void __init early_mem(char **p)
+static int __init early_mem(char *p)
{
static int usermem __initdata = 0;
unsigned long size, start;
+ char *endp;
/*
* If the user specifies memory size, we
@@ -434,52 +436,15 @@ static void __init early_mem(char **p)
}
start = PHYS_OFFSET;
- size = memparse(*p, p);
- if (**p == '@')
- start = memparse(*p + 1, p);
+ size = memparse(p, &endp);
+ if (*endp == '@')
+ start = memparse(endp + 1, NULL);
arm_add_memory(start, size);
-}
-__early_param("mem=", early_mem);
-/*
- * Initial parsing of the command line.
- */
-static void __init parse_cmdline(char **cmdline_p, char *from)
-{
- char c = ' ', *to = command_line;
- int len = 0;
-
- for (;;) {
- if (c == ' ') {
- extern struct early_params __early_begin, __early_end;
- struct early_params *p;
-
- for (p = &__early_begin; p < &__early_end; p++) {
- int arglen = strlen(p->arg);
-
- if (memcmp(from, p->arg, arglen) == 0) {
- if (to != command_line)
- to -= 1;
- from += arglen;
- p->fn(&from);
-
- while (*from != ' ' && *from != '\0')
- from++;
- break;
- }
- }
- }
- c = *from++;
- if (!c)
- break;
- if (COMMAND_LINE_SIZE <= ++len)
- break;
- *to++ = c;
- }
- *to = '\0';
- *cmdline_p = command_line;
+ return 0;
}
+early_param("mem", early_mem);
static void __init
setup_ramdisk(int doload, int prompt, int image_start, unsigned int rd_sz)
@@ -740,9 +705,15 @@ void __init setup_arch(char **cmdline_p)
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);
+ /* parse_early_param needs a boot_command_line */
+ strlcpy(boot_command_line, from, COMMAND_LINE_SIZE);
+
+ /* populate cmd_line too for later use, preserving boot_command_line */
+ strlcpy(cmd_line, boot_command_line, COMMAND_LINE_SIZE);
+ *cmdline_p = cmd_line;
+
+ parse_early_param();
+
paging_init(mdesc);
request_standard_resources(&meminfo, mdesc);
@@ -783,9 +754,21 @@ static int __init topology_init(void)
return 0;
}
-
subsys_initcall(topology_init);
+#ifdef CONFIG_HAVE_PROC_CPU
+static int __init proc_cpu_init(void)
+{
+ struct proc_dir_entry *res;
+
+ res = proc_mkdir("cpu", NULL);
+ if (!res)
+ return -ENOMEM;
+ return 0;
+}
+fs_initcall(proc_cpu_init);
+#endif
+
static const char *hwcap_str[] = {
"swp",
"half",
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