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MIPS: Enable vmlinuz for JZ4740

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This patch adds support for building a compressed kernel for the JZ4740
architecture.

Signed-off-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Maarten ter Huurne <maarten@treewalker.org>
Cc: Sergei Shtylyov <sshtylyov@mvista.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/3563/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Lluís Batlle i Rossell 2012-03-30 16:48:05 +02:00 committed by Ralf Baechle
parent ea3952e01c
commit f9c9affc57
3 changed files with 10 additions and 0 deletions
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1
arch/mips/Kconfig
View File

@ -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

4
arch/mips/boot/compressed/Makefile
View File

@ -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

5
arch/mips/boot/compressed/uart-16550.c
View File

@ -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