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| author | Mike Frysinger <michael.frysinger@analog.com> | 2007-05-21 18:09:32 +0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-21 09:50:23 -0700 |
| commit | a9c59c2746c7e773839d51027c0e16ccf41f8fef (patch) | |
| tree | e5eef75538858cc0d6f70036c549b2e3cc4858fc /arch | |
| parent | 19381f024b01413d83cec1655c3fc4c9c09ae274 (diff) | |
| download | lwn-a9c59c2746c7e773839d51027c0e16ccf41f8fef.tar.gz lwn-a9c59c2746c7e773839d51027c0e16ccf41f8fef.zip | |
Blackfin arch: cache SWRST value at bootup so other things like watchdog can non-destructively query it
Signed-off-by: Mike Frysinger <michael.frysinger@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/blackfin/kernel/setup.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c index b6ac6f8067b8..02dc74301920 100644 --- a/arch/blackfin/kernel/setup.c +++ b/arch/blackfin/kernel/setup.c @@ -43,6 +43,8 @@ #include <asm/blackfin.h> #include <asm/cplbinit.h> +u16 _bfin_swrst; + unsigned long memory_start, memory_end, physical_mem_end; unsigned long reserved_mem_dcache_on; unsigned long reserved_mem_icache_on; @@ -381,6 +383,12 @@ void __init setup_arch(char **cmdline_p) if (l1_length > L1_DATA_A_LENGTH) panic("L1 memory overflow\n"); +#ifdef BF561_FAMILY + _bfin_swrst = bfin_read_SICA_SWRST(); +#else + _bfin_swrst = bfin_read_SWRST(); +#endif + bf53x_cache_init(); printk(KERN_INFO "Hardware Trace Enabled\n"); |