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| author | Sonic Zhang <sonic.zhang@analog.com> | 2009-06-15 09:39:19 +0200 |
|---|---|---|
| committer | Mike Frysinger <vapier@gentoo.org> | 2009-06-23 03:15:48 +0200 |
| commit | 0de4adfb8c9674fa1572b0ff1371acc94b0be901 (patch) | |
| tree | 24ed2b515b7786b7ea29c0696f6f8fcd9a3d46b4 /arch/xtensa | |
| parent | Blackfin: abstract irq14 lowering in do_irq (diff) | |
| download | linux-0de4adfb8c9674fa1572b0ff1371acc94b0be901.tar.xz linux-0de4adfb8c9674fa1572b0ff1371acc94b0be901.zip | |
Blackfin: fix accidental reset in some boot modes
We read the SWRST (Software Reset) register to get at the last reset
state, and then we may configure the DOUBLE_FAULT bit to control behavior
when a double fault occurs. But if the lower bits of the register is
already set (like UART boot mode on a BF54x), we inadvertently make the
system reset by writing to the SYSTEM_RESET field at the same time. So
make sure the lower 4 bits are always cleared.
Signed-off-by: Sonic Zhang <sonic.zhang@analog.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'arch/xtensa')
0 files changed, 0 insertions, 0 deletions