ARM: EXYNOS: Fixup debug macros for big-endian

The exynos low-level debug macros need to be fixed if the system is being
built big endian. Add the necessary endian swaps for accessing the registers
to get output working again

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>

diff --git a/arch/arm/include/debug/samsung.S b/arch/arm/include/debug/samsung.S
index 8d8d922..f4eeed2 100644 (file)
--- a/arch/arm/include/debug/samsung.S
+++ b/arch/arm/include/debug/samsung.S
@@ -15,11 +15,13 @@
 
        .macro fifo_level_s5pv210 rd, rx
                ldr     \rd, [\rx, # S3C2410_UFSTAT]
+ARM_BE8(rev \rd, \rd)
                and     \rd, \rd, #S5PV210_UFSTAT_TXMASK
        .endm
 
        .macro  fifo_full_s5pv210 rd, rx
                ldr     \rd, [\rx, # S3C2410_UFSTAT]
+ARM_BE8(rev \rd, \rd)
                tst     \rd, #S5PV210_UFSTAT_TXFULL
        .endm
 
@@ -28,6 +30,7 @@
 
        .macro fifo_level_s3c2440 rd, rx
                ldr     \rd, [\rx, # S3C2410_UFSTAT]
+ARM_BE8(rev \rd, \rd)
                and     \rd, \rd, #S3C2440_UFSTAT_TXMASK
        .endm
 
@@ -37,6 +40,7 @@
 
        .macro  fifo_full_s3c2440 rd, rx
                ldr     \rd, [\rx, # S3C2410_UFSTAT]
+ARM_BE8(rev \rd, \rd)
                tst     \rd, #S3C2440_UFSTAT_TXFULL
        .endm
 
@@ -50,6 +54,7 @@
 
        .macro  busyuart, rd, rx
                ldr     \rd, [\rx, # S3C2410_UFCON]
+ARM_BE8(rev \rd, \rd)
                tst     \rd, #S3C2410_UFCON_FIFOMODE    @ fifo enabled?
                beq     1001f                           @
                @ FIFO enabled...
@@ -61,6 +66,7 @@
 1001:
                @ busy waiting for non fifo
                ldr     \rd, [\rx, # S3C2410_UTRSTAT]
+ARM_BE8(rev \rd, \rd)
                tst     \rd, #S3C2410_UTRSTAT_TXFE
                beq     1001b
 
@@ -69,6 +75,7 @@
 
        .macro  waituart,rd,rx
                ldr     \rd, [\rx, # S3C2410_UFCON]
+ARM_BE8(rev \rd, \rd)
                tst     \rd, #S3C2410_UFCON_FIFOMODE    @ fifo enabled?
                beq     1001f                           @
                @ FIFO enabled...
@@ -80,6 +87,7 @@
 1001:
                @ idle waiting for non fifo
                ldr     \rd, [\rx, # S3C2410_UTRSTAT]
+ARM_BE8(rev \rd, \rd)
                tst     \rd, #S3C2410_UTRSTAT_TXFE
                beq     1001b