[U-Boot] [PATCH] ARM: UniPhier: add initrd_high and fdt_high environments

[U-Boot] [PATCH] ARM: UniPhier: add initrd_high and fdt_high environments

[Masahiro Yamada]

With FIT boot, U-boot puts a device tree and an initramdisk at the
tail of the memory.

Some UniPhier boards have a large amount of memory.  For those
boards, a device tree and an initramdisk are located out of reach of
the Linux kernel causing a kernel panic if CONFIG_VMSPLIT_3G is
defined in the kernel side.

Add initrd_high and fdt_high to prevent them from going too high.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
---

 include/configs/uniphier.h | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/include/configs/uniphier.h b/include/configs/uniphier.h
index d4688c5..dea340f 100644
--- a/include/configs/uniphier.h
+++ b/include/configs/uniphier.h
@@ -236,6 +236,8 @@
 	"netdev=eth0\0"				\
 	"image_offset=0x00080000\0"		\
 	"image_size=0x00f00000\0"		\
+	"initrd_high=0xa0000000\0"		\
+	"fdt_high=0xa0000000\0"			\
 	"verify=n\0"				\
 	"nandupdate=nand erase 0 0x100000 &&"				\
 		   "tftpboot u-boot-spl.bin &&"				\
-- 
1.9.1

[U-Boot] [PATCH] ARM: UniPhier: add initrd_high and fdt_high environments

[Tom Rini]

On Tue, Apr 14, 2015 at 04:57:04PM +0900, Masahiro Yamada wrote:

> With FIT boot, U-boot puts a device tree and an initramdisk at the
> tail of the memory.
> 
> Some UniPhier boards have a large amount of memory.  For those
> boards, a device tree and an initramdisk are located out of reach of
> the Linux kernel causing a kernel panic if CONFIG_VMSPLIT_3G is
> defined in the kernel side.
> 
> Add initrd_high and fdt_high to prevent them from going too high.

Please use bootm_size and see include/configs/ti_armv7_common.h /
DEFAULT_LINUX_BOOT_ENV for the why/wheres and then adjust to fit
UniPhier, thanks!

-- 
Tom
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[U-Boot] [PATCH] ARM: UniPhier: add initrd_high and fdt_high environments

[Masahiro Yamada]

Hi Tom,


2015-04-15 6:07 GMT+09:00 Tom Rini <trini@konsulko.com>:
> On Tue, Apr 14, 2015 at 04:57:04PM +0900, Masahiro Yamada wrote:
>
>> With FIT boot, U-boot puts a device tree and an initramdisk at the
>> tail of the memory.
>>
>> Some UniPhier boards have a large amount of memory.  For those
>> boards, a device tree and an initramdisk are located out of reach of
>> the Linux kernel causing a kernel panic if CONFIG_VMSPLIT_3G is
>> defined in the kernel side.
>>
>> Add initrd_high and fdt_high to prevent them from going too high.
>
> Please use bootm_size and see include/configs/ti_armv7_common.h /
> DEFAULT_LINUX_BOOT_ENV for the why/wheres and then adjust to fit
> UniPhier, thanks!
>


After long silence, I came back again!


I noticed  "bootm_size" and "bootm_low" environments are checked for
relocation for FDT, but not for Initramdisk.

Namely, "initrd_high" is only the way to prevent the initramdisk
from going too high.


So, I posted this patch:
http://patchwork.ozlabs.org/patch/558077/





-- 
Best Regards
Masahiro Yamada