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authorMike Frysinger <vapier.adi@gmail.com>2009-02-04 16:49:45 +0800
committerBryan Wu <cooloney@kernel.org>2009-02-04 16:49:45 +0800
commited1fb6048c3eef68df5fe19e9022fdad6e53357d (patch)
tree9fc321ff4092ceedef200b56ccafa64980a8e5d9
parent7f6678c52fea7ff3e7eb6a5f0e0b705c1991eaa2 (diff)
Blackfin arch: read SYSCR on newer parts that mirror the bits of SWRST in it
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com> Signed-off-by: Bryan Wu <cooloney@kernel.org>
-rw-r--r--arch/blackfin/kernel/setup.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index a23fec573c0..86feb427421 100644
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -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);