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| author | Lennert Buytenhek <buytenh@wantstofly.org> | 2006-04-09 22:20:57 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-04-09 22:20:57 +0100 |
| commit | 932355797530f5bd4e1355a2c384e9f3ccc3dcbc (patch) | |
| tree | 97ef892c3b02b3275731e898a46c6c2a6b9f1f98 /include/asm-arm | |
| parent | c5b8ef62b5df9530c573f00f4106742661425392 (diff) | |
| download | linux-3.10-932355797530f5bd4e1355a2c384e9f3ccc3dcbc.tar.gz linux-3.10-932355797530f5bd4e1355a2c384e9f3ccc3dcbc.tar.bz2 linux-3.10-932355797530f5bd4e1355a2c384e9f3ccc3dcbc.zip | |
[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')
| -rw-r--r-- | include/asm-arm/arch-ixp23xx/debug-macro.S | 3 |
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 |