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authorMiles Bader <miles@gnu.org>2005-09-02 15:13:30 +0900
committerLinus Torvalds <torvalds@evo.osdl.org>2005-09-02 00:57:31 -0700
commit023239c6c96dfacbf32e7162ee7692bdd4f58213 (patch)
treed91b0a0253542dcdaa55b6e4c89ee701648315e9 /arch/v850/kernel
parent213b24c93b6c43d96973b9db453bf845c97bbe18 (diff)
downloadlinux-2.6.34-ux500-023239c6c96dfacbf32e7162ee7692bdd4f58213.tar.gz
[PATCH] v850: Round up length passed to slram driver to a multiple of SLRAM_BLK_SZ
Signed-off-by: Miles Bader <miles@gnu.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/v850/kernel')
-rw-r--r--arch/v850/kernel/setup.c14
1 files changed, 12 insertions, 2 deletions
diff --git a/arch/v850/kernel/setup.c b/arch/v850/kernel/setup.c
index c41d72b01b8..4a222dc5ab8 100644
--- a/arch/v850/kernel/setup.c
+++ b/arch/v850/kernel/setup.c
@@ -1,8 +1,8 @@
/*
* arch/v850/kernel/setup.c -- Arch-dependent initialization functions
*
- * Copyright (C) 2001,02,03 NEC Electronics Corporation
- * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org>
+ * Copyright (C) 2001,02,03,05 NEC Electronics Corporation
+ * Copyright (C) 2001,02,03,05 Miles Bader <miles@gnu.org>
*
* This file is subject to the terms and conditions of the GNU General
* Public License. See the file COPYING in the main directory of this
@@ -98,10 +98,20 @@ void __init trap_init (void)
}
#ifdef CONFIG_MTD
+
+/* From drivers/mtd/devices/slram.c */
+#define SLRAM_BLK_SZ 0x4000
+
/* Set the root filesystem to be the given memory region.
Some parameter may be appended to CMD_LINE. */
void set_mem_root (void *addr, size_t len, char *cmd_line)
{
+ /* Some sort of idiocy in MTD means we must supply a length that's
+ a multiple of SLRAM_BLK_SZ. We just round up the real length,
+ as the file system shouldn't attempt to access anything beyond
+ the end of the image anyway. */
+ len = (((len - 1) + SLRAM_BLK_SZ) / SLRAM_BLK_SZ) * SLRAM_BLK_SZ;
+
/* The only way to pass info to the MTD slram driver is via
the command line. */
if (*cmd_line) {