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| author | Miles Bader <miles@gnu.org> | 2005-09-02 15:13:30 +0900 |
|---|---|---|
| committer | Linus Torvalds <torvalds@evo.osdl.org> | 2005-09-02 00:57:31 -0700 |
| commit | 023239c6c96dfacbf32e7162ee7692bdd4f58213 (patch) | |
| tree | d91b0a0253542dcdaa55b6e4c89ee701648315e9 /arch/v850/kernel/setup.c | |
| parent | 213b24c93b6c43d96973b9db453bf845c97bbe18 (diff) | |
| download | blackbird-op-linux-023239c6c96dfacbf32e7162ee7692bdd4f58213.tar.gz blackbird-op-linux-023239c6c96dfacbf32e7162ee7692bdd4f58213.zip | |
[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/setup.c')
| -rw-r--r-- | arch/v850/kernel/setup.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/arch/v850/kernel/setup.c b/arch/v850/kernel/setup.c index c41d72b01b88..4a222dc5ab82 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) { |
