Commit 6ef4e479 authored Mar 25, 2015 by Ben Dooks Committed by Dinh Nguyen May 11, 2015

ARM: debug: fix big endian operation for 8250 word mode



If the 8250 debug code is used in word mode on an big endian
host then the writes need to be change into little endian for
the bus.

Note, we have to re-convert the value back as the debug code
will inspect the value after writing it to see if a newline
has been written.

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>

parent 5ebe6afa

arch/arm/include/debug/8250.S

+3 −0

Original line number	Diff line number	Diff line
		@@ -16,11 +16,14 @@

		#ifdef CONFIG_DEBUG_UART_8250_WORD
		.macro store, rd, rx:vararg
		ARM_BE8(rev \rd, \rd)
		str \rd, \rx
		ARM_BE8(rev \rd, \rd)
		.endm

		.macro load, rd, rx:vararg
		ldr \rd, \rx
		ARM_BE8(rev \rd, \rd)
		.endm
		#else
		.macro store, rd, rx:vararg