* [PATCH] MIPS: bcm47xx: enable ZBOOT support
@ 2018-01-16 22:21 Aaro Koskinen
2018-02-01 16:16 ` James Hogan
0 siblings, 1 reply; 2+ messages in thread
From: Aaro Koskinen @ 2018-01-16 22:21 UTC (permalink / raw)
To: Ralf Baechle, James Hogan, Hauke Mehrtens,
Rafał Miłecki, linux-mips
Cc: Aaro Koskinen
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>
---
arch/mips/Kconfig | 1 +
arch/mips/bcm47xx/Platform | 1 +
2 files changed, 2 insertions(+)
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 350a990..1a8cd3b 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 874b7ca..70783b7 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-$(CONFIG_BCM47XX) += 0xffffffff80400000
--
2.9.2
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] MIPS: bcm47xx: enable ZBOOT support
2018-01-16 22:21 [PATCH] MIPS: bcm47xx: enable ZBOOT support Aaro Koskinen
@ 2018-02-01 16:16 ` James Hogan
0 siblings, 0 replies; 2+ messages in thread
From: James Hogan @ 2018-02-01 16:16 UTC (permalink / raw)
To: Aaro Koskinen
Cc: Ralf Baechle, Hauke Mehrtens, Rafał Miłecki, linux-mips
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On Wed, Jan 17, 2018 at 12:21:44AM +0200, Aaro Koskinen wrote:
> Enable ZBOOT support. The WRT54GL router's bootloader limits kernel
> size to 3 MB with the normal load address, which is a bit challenging
> vmlinux size with modern Linux. A compressed kernel allows booting
> much bigger kernels.
>
> Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Applied to my 4.16 branch
Thanks
James
> ---
> arch/mips/Kconfig | 1 +
> arch/mips/bcm47xx/Platform | 1 +
> 2 files changed, 2 insertions(+)
>
> diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
> index 350a990..1a8cd3b 100644
> --- a/arch/mips/Kconfig
> +++ b/arch/mips/Kconfig
> @@ -253,6 +253,7 @@ config BCM47XX
> select SYS_SUPPORTS_32BIT_KERNEL
> select SYS_SUPPORTS_LITTLE_ENDIAN
> select SYS_SUPPORTS_MIPS16
> + select SYS_SUPPORTS_ZBOOT
> select SYS_HAS_EARLY_PRINTK
> select USE_GENERIC_EARLY_PRINTK_8250
> select GPIOLIB
> diff --git a/arch/mips/bcm47xx/Platform b/arch/mips/bcm47xx/Platform
> index 874b7ca..70783b7 100644
> --- a/arch/mips/bcm47xx/Platform
> +++ b/arch/mips/bcm47xx/Platform
> @@ -5,3 +5,4 @@ platform-$(CONFIG_BCM47XX) += bcm47xx/
> cflags-$(CONFIG_BCM47XX) += \
> -I$(srctree)/arch/mips/include/asm/mach-bcm47xx
> load-$(CONFIG_BCM47XX) := 0xffffffff80001000
> +zload-$(CONFIG_BCM47XX) += 0xffffffff80400000
> --
> 2.9.2
>
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