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Blackfin arch: read SYSCR on newer parts that mirror the bits of SWRST in it

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Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
This commit is contained in:
Mike Frysinger 2009-02-04 16:49:45 +08:00 committed by Bryan Wu
parent 7f6678c52f
commit ed1fb6048c
1 changed files with 6 additions and 0 deletions
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6
arch/blackfin/kernel/setup.c
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@ -826,7 +826,13 @@ void __init setup_arch(char **cmdline_p)
printk(KERN_INFO "Boot Mode: %i\n", bfin_read_SYSCR() & 0xF);
/* Newer parts mirror SWRST bits in SYSCR */
#if defined(CONFIG_BF53x) || defined(CONFIG_BF561) || \
defined(CONFIG_BF538) || defined(CONFIG_BF539)
_bfin_swrst = bfin_read_SWRST();
#else
_bfin_swrst = bfin_read_SYSCR();
#endif
#ifdef CONFIG_DEBUG_DOUBLEFAULT_PRINT
bfin_write_SWRST(_bfin_swrst & ~DOUBLE_FAULT);