Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=5079df993c3ab45af10dc9a45b3b9e712fd56f23
Commit: 5079df993c3ab45af10dc9a45b3b9e712fd56f23
Parent: ef9256d2831df0896566c3823cd2bdf0e55df984
Author: Mike Frysinger <[EMAIL PROTECTED]>
AuthorDate: Mon May 21 18:09:27 2007 +0800
Committer: Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Mon May 21 09:50:22 2007 -0700
Blackfin arch: document why we have to touch the UART peripheral in our
boot up code
Signed-off-by: Mike Frysinger <[EMAIL PROTECTED]>
Signed-off-by: Bryan Wu <[EMAIL PROTECTED]>
Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
arch/blackfin/mach-bf533/head.S | 3 ++-
arch/blackfin/mach-bf537/head.S | 3 ++-
arch/blackfin/mach-bf561/head.S | 3 ++-
3 files changed, 6 insertions(+), 3 deletions(-)
diff --git a/arch/blackfin/mach-bf533/head.S b/arch/blackfin/mach-bf533/head.S
index 1a54ff5..4db9e62 100644
--- a/arch/blackfin/mach-bf533/head.S
+++ b/arch/blackfin/mach-bf533/head.S
@@ -173,7 +173,8 @@ ENTRY(__stext)
STI R2;
#endif
- /* Initialise UART */
+ /* Initialise UART - when booting from u-boot, the UART is not disabled
+ * so if we dont initalize here, our serial console gets hosed */
p0.h = hi(UART_LCR);
p0.l = lo(UART_LCR);
r0 = 0x0(Z);
diff --git a/arch/blackfin/mach-bf537/head.S b/arch/blackfin/mach-bf537/head.S
index aafc686..b4377dd 100644
--- a/arch/blackfin/mach-bf537/head.S
+++ b/arch/blackfin/mach-bf537/head.S
@@ -181,7 +181,8 @@ ENTRY(__stext)
SSYNC;
#endif
- /*Initialise UART*/
+ /* Initialise UART - when booting from u-boot, the UART is not disabled
+ * so if we dont initalize here, our serial console gets hosed */
p0.h = hi(UART_LCR);
p0.l = lo(UART_LCR);
r0 = 0x0(Z);
diff --git a/arch/blackfin/mach-bf561/head.S b/arch/blackfin/mach-bf561/head.S
index 04f3ac3..9c8e688 100644
--- a/arch/blackfin/mach-bf561/head.S
+++ b/arch/blackfin/mach-bf561/head.S
@@ -127,7 +127,8 @@ ENTRY(__stext)
STI R2;
#endif
- /* Initialise UART*/
+ /* Initialise UART - when booting from u-boot, the UART is not disabled
+ * so if we dont initalize here, our serial console gets hosed */
p0.h = hi(UART_LCR);
p0.l = lo(UART_LCR);
r0 = 0x0(Z);
-
To unsubscribe from this list: send the line "unsubscribe git-commits-head" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at http://vger.kernel.org/majordomo-info.html
