Hook up the compressed debug output for all Alchemy systems supported
by current kernel codebase.
Cc: Wu Zhangjin <wuzhangjin@xxxxxxxxx>
Signed-off-by: Manuel Lauss <manuel.lauss@xxxxxxxxx>
---
The code is built for all alchemy systems since I doubt anyone would
solder on an extra UART chip instead of using the built-in ones.
Should work on all in-kernel boards; my db1200 likes it:
zimage at: 82E21350 82FA149D
Uncompressing Linux at load address 80100000
Now, booting the kernel...
arch/mips/boot/compressed/Makefile | 1 +
arch/mips/boot/compressed/uart-alchemy.c | 7 +++++++
2 files changed, 8 insertions(+), 0 deletions(-)
create mode 100644 arch/mips/boot/compressed/uart-alchemy.c
diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile
index 671d344..5f09c18 100644
--- a/arch/mips/boot/compressed/Makefile
+++ b/arch/mips/boot/compressed/Makefile
@@ -33,6 +33,7 @@ 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
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);
+}
--
1.6.5.6
