MIPS: Alchemy: debug output for compressed kernels

Hook up the compressed debug output for all Alchemy systems supported
by current kernel codebase.

Signed-off-by: Manuel Lauss <[email protected]>
To: Linux-MIPS <[email protected]>
Cc: Wu Zhangjin <[email protected]>
Patchwork: http://patchwork.linux-mips.org/patch/879/
Signed-off-by: Ralf Baechle <[email protected]>

diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile
index b798830b77302729e88e8841091011884b3fdf51..76d69303b8336d7d001886a49f641df035f9471c 100644 (file)
--- a/arch/mips/boot/compressed/Makefile
+++ b/arch/mips/boot/compressed/Makefile
@@ -36,6 +36,7 @@ KBUILD_AFLAGS := $(LINUXINCLUDE) $(KBUILD_AFLAGS) -D__ASSEMBLY__ \
 obj-y := $(obj)/head.o $(obj)/decompress.o $(obj)/dbg.o
 
 obj-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16550) += $(obj)/uart-16550.o
+obj-$(CONFIG_MACH_ALCHEMY)                += $(obj)/uart-alchemy.o
 
 OBJCOPYFLAGS_vmlinux.bin := $(OBJCOPYFLAGS) -O binary -R .comment -S
 $(obj)/vmlinux.bin: $(KBUILD_IMAGE)

diff --git a/arch/mips/boot/compressed/uart-alchemy.c b/arch/mips/boot/compressed/uart-alchemy.c
new file mode 100644 (file)
index 0000000..1bff22f
--- /dev/null
+++ b/arch/mips/boot/compressed/uart-alchemy.c
@@ -0,0 +1,7 @@
+#include <asm/mach-au1x00/au1000.h>
+
+void putc(char c)
+{
+       /* all current (Jan. 2010) in-kernel boards */
+       alchemy_uart_putchar(UART0_PHYS_ADDR, c);
+}