X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=arch%2Fmips%2Fmips-boards%2Fgeneric%2Fmemory.c;h=eeed944e0f83eb9c0ba5c1b09ad3b760feaa040f;hb=0c326331c8b107abc0a160e8899d749150b8f76a;hp=fd492562584aabea44489f7ad622d49ebdacc90e;hpb=98174e46974323e4941c72e46345f7277755e146;p=pandora-kernel.git

diff --git a/arch/mips/mips-boards/generic/memory.c b/arch/mips/mips-boards/generic/memory.c
index fd492562584a..dc272c188233 100644
--- a/arch/mips/mips-boards/generic/memory.c
+++ b/arch/mips/mips-boards/generic/memory.c
@@ -18,7 +18,6 @@
  * PROM library functions for acquiring/using memory descriptors given to
  * us from the YAMON.
  */
-#include <linux/config.h>
 #include <linux/init.h>
 #include <linux/mm.h>
 #include <linux/bootmem.h>
@@ -48,43 +47,46 @@ static char *mtypes[3] = {
 };
 #endif
 
+/* determined physical memory size, not overridden by command line args  */
+unsigned long physical_memsize = 0L;
+
 struct prom_pmemblock * __init prom_getmdesc(void)
 {
 	char *memsize_str;
 	unsigned int memsize;
 	char cmdline[CL_SIZE], *ptr;
 
-	/* Check the command line first for a memsize directive */
-	strcpy(cmdline, arcs_cmdline);
-	ptr = strstr(cmdline, "memsize=");
-	if (ptr && (ptr != cmdline) && (*(ptr - 1) != ' '))
-		ptr = strstr(ptr, " memsize=");
-
-	if (ptr) {
-		memsize = memparse(ptr + 8, &ptr);
-	}
-	else {
-		/* otherwise look in the environment */
-		memsize_str = prom_getenv("memsize");
-		if (!memsize_str) {
-			prom_printf("memsize not set in boot prom, set to default (32Mb)\n");
-			memsize = 0x02000000;
-		} else {
+	/* otherwise look in the environment */
+	memsize_str = prom_getenv("memsize");
+	if (!memsize_str) {
+		printk(KERN_WARNING
+		       "memsize not set in boot prom, set to default (32Mb)\n");
+		physical_memsize = 0x02000000;
+	} else {
 #ifdef DEBUG
-			prom_printf("prom_memsize = %s\n", memsize_str);
+		pr_debug("prom_memsize = %s\n", memsize_str);
 #endif
-			memsize = simple_strtol(memsize_str, NULL, 0);
-		}
+		physical_memsize = simple_strtol(memsize_str, NULL, 0);
 	}
 
 #ifdef CONFIG_CPU_BIG_ENDIAN
-	/*
-	 * SOC-it swaps, or perhaps doesn't swap, when DMA'ing the last
-	 * word of physical memory
-	 */
-	memsize -= PAGE_SIZE;
+	/* SOC-it swaps, or perhaps doesn't swap, when DMA'ing the last
+	   word of physical memory */
+	physical_memsize -= PAGE_SIZE;
 #endif
 
+	/* Check the command line for a memsize directive that overrides
+	   the physical/default amount */
+	strcpy(cmdline, arcs_cmdline);
+	ptr = strstr(cmdline, "memsize=");
+	if (ptr && (ptr != cmdline) && (*(ptr - 1) != ' '))
+		ptr = strstr(ptr, " memsize=");
+
+	if (ptr)
+		memsize = memparse(ptr + 8, &ptr);
+	else
+		memsize = physical_memsize;
+
 	memset(mdesc, 0, sizeof(mdesc));
 
 	mdesc[0].type = yamon_dontuse;
@@ -123,7 +125,7 @@ struct prom_pmemblock * __init prom_getmdesc(void)
 	return &mdesc[0];
 }
 
-static int __init prom_memtype_classify (unsigned int type)
+static int __init prom_memtype_classify(unsigned int type)
 {
 	switch (type) {
 	case yamon_free:
@@ -140,12 +142,12 @@ void __init prom_meminit(void)
 	struct prom_pmemblock *p;
 
 #ifdef DEBUG
-	prom_printf("YAMON MEMORY DESCRIPTOR dump:\n");
+	pr_debug("YAMON MEMORY DESCRIPTOR dump:\n");
 	p = prom_getmdesc();
 	while (p->size) {
 		int i = 0;
-		prom_printf("[%d,%p]: base<%08lx> size<%08lx> type<%s>\n",
-			    i, p, p->base, p->size, mtypes[p->type]);
+		pr_debug("[%d,%p]: base<%08lx> size<%08lx> type<%s>\n",
+			 i, p, p->base, p->size, mtypes[p->type]);
 		p++;
 		i++;
 	}
@@ -156,7 +158,7 @@ void __init prom_meminit(void)
 		long type;
 		unsigned long base, size;
 
-		type = prom_memtype_classify (p->type);
+		type = prom_memtype_classify(p->type);
 		base = p->base;
 		size = p->size;
 
@@ -165,9 +167,8 @@ void __init prom_meminit(void)
 	}
 }
 
-unsigned long __init prom_free_prom_memory(void)
+void __init prom_free_prom_memory(void)
 {
-	unsigned long freed = 0;
 	unsigned long addr;
 	int i;
 
@@ -176,16 +177,7 @@ unsigned long __init prom_free_prom_memory(void)
 			continue;
 
 		addr = boot_mem_map.map[i].addr;
-		while (addr < boot_mem_map.map[i].addr
-			      + boot_mem_map.map[i].size) {
-			ClearPageReserved(virt_to_page(__va(addr)));
-			init_page_count(virt_to_page(__va(addr)));
-			free_page((unsigned long)__va(addr));
-			addr += PAGE_SIZE;
-			freed += PAGE_SIZE;
-		}
+		free_init_pages("prom memory",
+				addr, addr + boot_mem_map.map[i].size);
 	}
-	printk("Freeing prom memory: %ldkb freed\n", freed >> 10);
-
-	return freed;
 }