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authorAaro Koskinen <aaro.koskinen@iki.fi>2018-01-17 00:21:44 +0200
committerJames Hogan <jhogan@kernel.org>2018-01-24 11:20:29 +0000
commit6507831f0e005fee670c0f01f42fd5ee8ea39181 (patch)
tree7751c431b4620f63857aecfcb9975c75d28abad1
parentcc4804448c321a82309756be68a5bac7cb1740d0 (diff)
downloadlinux-6507831f0e005fee670c0f01f42fd5ee8ea39181.tar.gz
MIPS: bcm47xx: enable ZBOOT support
Enable ZBOOT support. The WRT54GL router's bootloader limits kernel
size to 3 MB with the normal load address, which is a bit challenging
vmlinux size with modern Linux. A compressed kernel allows booting
much bigger kernels.

Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/18492/
Signed-off-by: James Hogan <jhogan@kernel.org>
-rw-r--r--arch/mips/Kconfig1
-rw-r--r--arch/mips/bcm47xx/Platform1
2 files changed, 2 insertions, 0 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 883db58fe8fe..f83f51fc2f82 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -253,6 +253,7 @@ config BCM47XX
 	select SYS_SUPPORTS_32BIT_KERNEL
 	select SYS_SUPPORTS_LITTLE_ENDIAN
 	select SYS_SUPPORTS_MIPS16
+	select SYS_SUPPORTS_ZBOOT
 	select SYS_HAS_EARLY_PRINTK
 	select USE_GENERIC_EARLY_PRINTK_8250
 	select GPIOLIB
diff --git a/arch/mips/bcm47xx/Platform b/arch/mips/bcm47xx/Platform
index 874b7ca4cd11..70783b75fd9d 100644
--- a/arch/mips/bcm47xx/Platform
+++ b/arch/mips/bcm47xx/Platform
@@ -5,3 +5,4 @@ platform-$(CONFIG_BCM47XX)	+= bcm47xx/
 cflags-$(CONFIG_BCM47XX)	+=					\
 		-I$(srctree)/arch/mips/include/asm/mach-bcm47xx
 load-$(CONFIG_BCM47XX)		:= 0xffffffff80001000
+zload-$(CONFIG_BCM47XX)		+= 0xffffffff80400000