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[PATCH v2] MIPS: Alchemy: debug output for compressed kernels

To: Linux-MIPS <linux-mips@linux-mips.org>
Subject: [PATCH v2] MIPS: Alchemy: debug output for compressed kernels
From: Manuel Lauss <manuel.lauss@googlemail.com>
Date: Tue, 26 Jan 2010 20:40:09 +0100
Cc: Manuel Lauss <manuel.lauss@gmail.com>, Wu Zhangjin <wuzhangjin@gmail.com>
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Hook up the compressed debug output for all Alchemy systems supported
by current kernel codebase.

Cc: Wu Zhangjin <wuzhangjin@gmail.com>
Signed-off-by: Manuel Lauss <manuel.lauss@gmail.com>
---
v2: Applies on top of Wu Zhangjin's "MIPS: Cleanup the debugging of compressed
kernel support" fixed v3 patch, and -queue.

 arch/mips/boot/compressed/Makefile       |    1 +
 arch/mips/boot/compressed/uart-alchemy.c |   11 +++++++++++
 2 files changed, 12 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 388b58c..fff73d4 100644
--- a/arch/mips/boot/compressed/Makefile
+++ b/arch/mips/boot/compressed/Makefile
@@ -34,6 +34,7 @@ obj-y := $(obj)/head.o $(obj)/decompress.o $(obj)/dbg.o
 
 ifdef CONFIG_DEBUG_ZBOOT
 obj-$(CONFIG_SYS_SUPPORTS_ZBOOT_UART16550) += $(obj)/uart-16550.o
+obj-$(CONFIG_MACH_ALCHEMY)                += $(obj)/uart-alchemy.o
 endif
 
 OBJCOPYFLAGS_vmlinux.bin := $(OBJCOPYFLAGS) -O binary -R .comment -S
diff --git a/arch/mips/boot/compressed/uart-alchemy.c 
b/arch/mips/boot/compressed/uart-alchemy.c
new file mode 100644
index 0000000..4c957df
--- /dev/null
+++ b/arch/mips/boot/compressed/uart-alchemy.c
@@ -0,0 +1,11 @@
+/*
+ * Alchemy on-chip uart based serial debug support for zboot
+ */
+
+#include <asm/mach-au1x00/au1000.h>
+
+void putc(char c)
+{
+       /* all current (Jan. 2010) in-kernel boards */
+       alchemy_uart_putchar(UART0_PHYS_ADDR, c);
+}
-- 
1.6.6


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