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ralink: update patches

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Signed-off-by: John Crispin <blogic@openwrt.org>

SVN-Revision: 37016
This commit is contained in:
John Crispin
2013-06-23 15:50:49 +00:00
parent 43a3d87b83
commit 55fb6f3a05
205 changed files with 64276 additions and 4325 deletions
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68
target/linux/ramips/patches-3.8/0037-MIPS-add-detect_memory_region.patch Normal file
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@@ -0,0 +1,68 @@
From 3350a0d29bc3f3d15b50835a20ffcc14a458e2d9 Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Sat, 13 Apr 2013 13:15:47 +0200
Subject: [PATCH 37/79] MIPS: add detect_memory_region()
Add a generic way of detecting the available RAM. This function is based on the
implementation already used by ath79.
Signed-off-by: John Crispin <blogic@openwrt.org>
Patchwork: http://patchwork.linux-mips.org/patch/5178/
---
arch/mips/include/asm/bootinfo.h | 1 +
arch/mips/kernel/setup.c | 20 ++++++++++++++++++++
2 files changed, 21 insertions(+)
diff --git a/arch/mips/include/asm/bootinfo.h b/arch/mips/include/asm/bootinfo.h
index 7a51d87..6d6cfac 100644
--- a/arch/mips/include/asm/bootinfo.h
+++ b/arch/mips/include/asm/bootinfo.h
@@ -104,6 +104,7 @@ struct boot_mem_map {
extern struct boot_mem_map boot_mem_map;
extern void add_memory_region(phys_t start, phys_t size, long type);
+extern void detect_memory_region(phys_t start, phys_t sz_min, phys_t sz_max);
extern void prom_init(void);
extern void prom_free_prom_memory(void);
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 8c41187..3937630 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -23,6 +23,7 @@
#include <linux/pfn.h>
#include <linux/debugfs.h>
#include <linux/kexec.h>
+#include <linux/sizes.h>
#include <asm/addrspace.h>
#include <asm/bootinfo.h>
@@ -122,6 +123,25 @@ void __init add_memory_region(phys_t start, phys_t size, long type)
boot_mem_map.nr_map++;
}
+void __init detect_memory_region(phys_t start, phys_t sz_min, phys_t sz_max)
+{
+ phys_t size;
+
+ for (size = sz_min; size < sz_max; size <<= 1) {
+ if (!memcmp(detect_memory_region,
+ detect_memory_region + size, 1024))
+ break;
+ }
+
+ pr_debug("Memory: %lluMB of RAM detected at 0x%llx (min: %lluMB, max: %lluMB)\n",
+ ((unsigned long long) size) / SZ_1M,
+ (unsigned long long) start,
+ ((unsigned long long) sz_min) / SZ_1M,
+ ((unsigned long long) sz_max) / SZ_1M);
+
+ add_memory_region(start, size, BOOT_MEM_RAM);
+}
+
static void __init print_memory_map(void)
{
int i;
--
1.7.10.4