[U-Boot] [PATCH 09/22][v2] armv8/ls2085a: Increase the supported kernel size

[York Sun <yorksun@freescale.com>]

On 05/28/2015 11:58 AM, Sharma Bhupesh-B45370 wrote:
> Hi York,
> 
> Sorry for missing this comment on v1.
> 
>> From: Sun York-R58495
>> Sent: Thursday, May 28, 2015 9:31 PM
>>
>> On 05/28/2015 02:24 AM, Prabhakar Kushwaha wrote:
>>> From: Bhupesh Sharma <bhupesh.sharma@freescale.com>
>>>
>>> Increases the kernel size supported for LS2085A platforms:-
>>>  - Update environment variables
>>>  - Add ramdisk_size in bootargs env variable
>>>  - Define  CONFIG_SYS_BOOTM_LEN to 64MB
>>>
>>> Signed-off-by: Bhupesh Sharma <bhupesh.sharma@freescale.com>
>>> Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
>>> ---
>>> Changes for v2: sending as it is for patch set
>>>
>>>  include/configs/ls2085a_common.h | 9 ++++++---
>>>  include/configs/ls2085aqds.h     | 2 +-
>>>  include/configs/ls2085ardb.h     | 2 +-
>>>  3 files changed, 8 insertions(+), 5 deletions(-)
>>>
>>> diff --git a/include/configs/ls2085a_common.h
>> b/include/configs/ls2085a_common.h
>>> index 749c58d..a33b8a9 100644
>>> --- a/include/configs/ls2085a_common.h
>>> +++ b/include/configs/ls2085a_common.h
>>> @@ -248,13 +248,13 @@ unsigned long long get_qixis_addr(void);
>>>  	"initrd_high=0xffffffffffffffff\0"	\
>>>  	"kernel_start=0x581200000\0"		\
>>>  	"kernel_load=0xa0000000\0"		\
>>> -	"kernel_size=0x1000000\0"		\
>>> +	"kernel_size=0x2000000\0"		\
>>>  	"console=ttyAMA0,38400n8\0"
>>
>> I didn't get a respond to my question for v1. How is kernel_size variable
>> used?
> 
> This variable is used for our default bootcmd to define the kernel size which needs to be copied
> from the address pointed by the 'kernel_start' variable to the address pointed to by
> the 'kernel_load' variable:
> 
> #define CONFIG_BOOTCOMMAND		"cp.b $kernel_start $kernel_load "     \
> 					"$kernel_size && bootm $kernel_load"
> 

Got it. It is just a short-hand for copying images from NOR flash to RAM.

York