MIPS: lantiq: fix early printk

The code was using a 32bit write operations in the early_printk code. This
resulted in 3 zero bytes also being written to the serial port. This patch
changes the memory access to 8bit.

Signed-off-by: Thomas Langer <thomas.langer@lantiq.com>
Signed-off-by: John Crispin <blogic@openwrt.org>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3721/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h b/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h
index 8a3c6be669d2..8bc9030525c0 100644
--- a/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h
+++ b/arch/mips/include/asm/mach-lantiq/xway/lantiq_soc.h
@@ -34,6 +34,12 @@
 #define LTQ_ASC1_BASE_ADDR      0x1E100C00
 #define LTQ_ASC_SIZE            0x400
 
+/*
+ * during early_printk no ioremap is possible
+ * lets use KSEG1 instead
+ */
+#define LTQ_EARLY_ASC           KSEG1ADDR(LTQ_ASC1_BASE_ADDR)
+
 /* RCU - reset control unit */
 #define LTQ_RCU_BASE_ADDR       0x1F203000
 #define LTQ_RCU_SIZE            0x1000