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authorLennert Buytenhek <buytenh@wantstofly.org>2006-04-09 22:20:57 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2006-04-09 22:20:57 +0100
commit932355797530f5bd4e1355a2c384e9f3ccc3dcbc (patch)
tree97ef892c3b02b3275731e898a46c6c2a6b9f1f98 /include/asm-arm/arch-ixp23xx
parentc5b8ef62b5df9530c573f00f4106742661425392 (diff)
[ARM] 3459/1: ixp23xx: fix debug serial macros for big-endian operation
Patch from Lennert Buytenhek The debug-8250 macros do byte accesses, which means that if we're in big-endian mode, we need to logically OR the UART address with 3, as the LSB byte lane (where UART data and status is transferred) has the highest byte address in the word when we are in big-endian mode. It's unclear why this problem didn't surface earlier. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/asm-arm/arch-ixp23xx')
-rw-r--r--include/asm-arm/arch-ixp23xx/debug-macro.S3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/asm-arm/arch-ixp23xx/debug-macro.S b/include/asm-arm/arch-ixp23xx/debug-macro.S
index eb99fd69fd2..2b25e640247 100644
--- a/include/asm-arm/arch-ixp23xx/debug-macro.S
+++ b/include/asm-arm/arch-ixp23xx/debug-macro.S
@@ -17,6 +17,9 @@
tst \rx, #1 @ mmu enabled?
ldreq \rx, =IXP23XX_PERIPHERAL_PHYS @ physical
ldrne \rx, =IXP23XX_PERIPHERAL_VIRT @ virtual
+#ifdef __ARMEB__
+ orr \rx, \rx, #0x00000003
+#endif
.endm
#define UART_SHIFT 2