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-rw-r--r--arch/mips/Kconfig1
-rw-r--r--arch/mips/boot/compressed/Makefile4
-rw-r--r--arch/mips/boot/compressed/uart-16550.c5
3 files changed, 10 insertions, 0 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index b3e10fd..debdb6e 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -209,6 +209,7 @@ config MACH_JZ4740
select SYS_HAS_CPU_MIPS32_R1
select SYS_SUPPORTS_32BIT_KERNEL
select SYS_SUPPORTS_LITTLE_ENDIAN
+ select SYS_SUPPORTS_ZBOOT_UART16550
select DMA_NONCOHERENT
select IRQ_CPU
select GENERIC_GPIO
diff --git a/arch/mips/boot/compressed/Makefile b/arch/mips/boot/compressed/Makefile
index 5042d51..c2a3fb0 100644
--- a/arch/mips/boot/compressed/Makefile
+++ b/arch/mips/boot/compressed/Makefile
@@ -58,8 +58,12 @@ $(obj)/piggy.o: $(obj)/dummy.o $(obj)/vmlinux.bin.z FORCE
# Calculate the load address of the compressed kernel image
hostprogs-y := calc_vmlinuz_load_addr
+ifeq ($(CONFIG_MACH_JZ4740),y)
+VMLINUZ_LOAD_ADDRESS := 0x80600000
+else
VMLINUZ_LOAD_ADDRESS = $(shell $(obj)/calc_vmlinuz_load_addr \
$(obj)/vmlinux.bin $(VMLINUX_LOAD_ADDRESS))
+endif
vmlinuzobjs-y += $(obj)/piggy.o
diff --git a/arch/mips/boot/compressed/uart-16550.c b/arch/mips/boot/compressed/uart-16550.c
index c9caaf4..1c7b739b 100644
--- a/arch/mips/boot/compressed/uart-16550.c
+++ b/arch/mips/boot/compressed/uart-16550.c
@@ -18,6 +18,11 @@
#define PORT(offset) (CKSEG1ADDR(AR7_REGS_UART0) + (4 * offset))
#endif
+#ifdef CONFIG_MACH_JZ4740
+#define UART0_BASE 0xB0030000
+#define PORT(offset) (UART0_BASE + (4 * offset))
+#endif
+
#ifndef PORT
#error please define the serial port address for your own machine
#endif
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