diff options
| author | Mike Frysinger <michael.frysinger@analog.com> | 2007-05-21 06:09:27 -0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-05-21 12:50:22 -0400 |
| commit | 5079df993c3ab45af10dc9a45b3b9e712fd56f23 (patch) | |
| tree | 9c978e20be84f4cc058d6a56cda5cdf497bc2be7 /arch/blackfin/mach-bf533 | |
| parent | ef9256d2831df0896566c3823cd2bdf0e55df984 (diff) | |
Blackfin arch: document why we have to touch the UART peripheral in our boot up code
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/blackfin/mach-bf533')
| -rw-r--r-- | arch/blackfin/mach-bf533/head.S | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/arch/blackfin/mach-bf533/head.S b/arch/blackfin/mach-bf533/head.S index 1a54ff5f061d..4db9e6240906 100644 --- a/arch/blackfin/mach-bf533/head.S +++ b/arch/blackfin/mach-bf533/head.S | |||
| @@ -173,7 +173,8 @@ ENTRY(__stext) | |||
| 173 | STI R2; | 173 | STI R2; |
| 174 | #endif | 174 | #endif |
| 175 | 175 | ||
| 176 | /* Initialise UART */ | 176 | /* Initialise UART - when booting from u-boot, the UART is not disabled |
| 177 | * so if we dont initalize here, our serial console gets hosed */ | ||
| 177 | p0.h = hi(UART_LCR); | 178 | p0.h = hi(UART_LCR); |
| 178 | p0.l = lo(UART_LCR); | 179 | p0.l = lo(UART_LCR); |
| 179 | r0 = 0x0(Z); | 180 | r0 = 0x0(Z); |