[U-Boot] [U-boot] [Patch v2 3/3] k2hk: change default nand ecc layout

[Ivan Khoronzhuk]

On 06/21/2014 02:40 AM, Scott Wood wrote:
> On Sat, 2014-06-21 at 02:28 +0300, Ivan Khoronzhuk wrote:
>> For keystyone k2hk board the default nand layout is different
>> from davinci. So swich ecc layout at init in board file.
>>
>> Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk at ti.com>
>> ---
>>   board/ti/k2hk_evm/board.c | 11 +++++++++++
>>   1 file changed, 11 insertions(+)
>>
>> diff --git a/board/ti/k2hk_evm/board.c b/board/ti/k2hk_evm/board.c
>> index ef90f9d..baa6ab7 100644
>> --- a/board/ti/k2hk_evm/board.c
>> +++ b/board/ti/k2hk_evm/board.c
>> @@ -11,6 +11,7 @@
>>   #include <exports.h>
>>   #include <fdt_support.h>
>>   #include <libfdt.h>
>> +#include <nand.h>
>>   
>>   #include <asm/arch/hardware.h>
>>   #include <asm/arch/clock.h>
>> @@ -19,6 +20,7 @@
>>   #include <asm/arch/emac_defs.h>
>>   #include <asm/arch/psc_defs.h>
>>   #include <asm/ti-common/ti-aemif.h>
>> +#include <asm/ti-common/davinci_nand.h>
>>   
>>   DECLARE_GLOBAL_DATA_PTR;
>>   
>> @@ -147,6 +149,15 @@ int cpu_to_bus(u32 *ptr, u32 length)
>>   	return 0;
>>   }
>>   
>> +int board_nand_init(struct nand_chip *chip)
>> +{
>> +	davinci_nand_init(chip);
>> +	chip->ecc.layout =
>> +		board_nand_get_ecclayout(NAND_KEYSTONE_RBL_4BIT_LAYOUT);
>> +
>> +	return 0;
>> +}
> Shouldn't you be calling board_nand_set_ecclayout()?  How will oobavail
> get set?

There is no reason to set oobavail here, I suppose that's done while int 
nand_scan_tail().

>
> Is it really OK to start with the wrong ECC layout and switch later?

It can be used to boot from nand.

> Are you depending on lazy scanning of the BBT?

No, define CONFIG_SYS_NAND_USE_FLASH_BBT

>
> For that matter, you also seem to be assuming that markbad will never be
> called when the ECC is set to something other than what the BBT uses.
>
> -Scott
>
>
I suppose that only ECC layout is different.

-- 
Regards,
Ivan Khoronzhuk