[PATCH] MIPS: jz4740: Bump zload address

[PATCH] MIPS: jz4740: Bump zload address

[Paul Cercueil]

Having the zload address at 0x8060.0000 means the size of the
uncompressed kernel cannot be bigger than around 6 MiB, as it is
deflated at address 0x8001.0000.

This limit is too small; a kernel with some built-in drivers and things
like debugfs enabled will already be over 6 MiB in size, and so will
fail to extract properly.

To fix this, we bump the zload address from 0x8060.0000 to 0x8100.0000.

This is fine, as all the boards featuring Ingenic JZ SoCs have at least
32 MiB of RAM, and use u-boot or compatible bootloaders which won't
hardcode the load address but read it from the uImage's header.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
---
 arch/mips/jz4740/Platform | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/mips/jz4740/Platform b/arch/mips/jz4740/Platform
index 28448d358c10..a2a5a85ea1f9 100644
--- a/arch/mips/jz4740/Platform
+++ b/arch/mips/jz4740/Platform
@@ -1,4 +1,4 @@
 platform-$(CONFIG_MACH_INGENIC)	+= jz4740/
 cflags-$(CONFIG_MACH_INGENIC)	+= -I$(srctree)/arch/mips/include/asm/mach-jz4740
 load-$(CONFIG_MACH_INGENIC)	+= 0xffffffff80010000
-zload-$(CONFIG_MACH_INGENIC)	+= 0xffffffff80600000
+zload-$(CONFIG_MACH_INGENIC)	+= 0xffffffff81000000
-- 
2.18.0

Re: [PATCH] MIPS: jz4740: Bump zload address

[Paul Burton]

Hi Paul,

On Sun, Jul 08, 2018 at 05:07:12PM +0200, Paul Cercueil wrote:
> Having the zload address at 0x8060.0000 means the size of the
> uncompressed kernel cannot be bigger than around 6 MiB, as it is
> deflated at address 0x8001.0000.
> 
> This limit is too small; a kernel with some built-in drivers and things
> like debugfs enabled will already be over 6 MiB in size, and so will
> fail to extract properly.
> 
> To fix this, we bump the zload address from 0x8060.0000 to 0x8100.0000.
> 
> This is fine, as all the boards featuring Ingenic JZ SoCs have at least
> 32 MiB of RAM, and use u-boot or compatible bootloaders which won't
> hardcode the load address but read it from the uImage's header.
> 
> Signed-off-by: Paul Cercueil <paul@crapouillou.net>
> ---
>  arch/mips/jz4740/Platform | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Thanks - applied to mips-next for 4.19 (and tested on Ci20).

Paul