[U-Boot] [PATCH V2 2/3] mtd: nand: mxs check maximum ecc that platfrom supports

[Peng Fan <b51431@freescale.com>]

Hi Scott,

On Tue, Aug 25, 2015 at 04:05:56PM -0500, Scott Wood wrote:
>On Tue, 2015-07-21 at 16:15 +0800, Peng Fan wrote:
>> Check maximum ecc strength for each platfrom to avoid the calculated ecc
>> exceed the limitation.
>> 
>> Signed-off-by: Peng Fan <Peng.Fan@freescale.com>
>> Signed-off-by: Han Xu <b45815@freescale.com>
>> Reviewed-by: Marek Vasut <marex@denx.de>
>> ---
>> 
>> Changes v2:
>>  Add Marek's reviewed by.
>> 
>>  drivers/mtd/nand/mxs_nand.c | 9 ++++++++-
>>  1 file changed, 8 insertions(+), 1 deletion(-)
>> 
>> diff --git a/drivers/mtd/nand/mxs_nand.c b/drivers/mtd/nand/mxs_nand.c
>> index 33ce817..97011b2 100644
>> --- a/drivers/mtd/nand/mxs_nand.c
>> +++ b/drivers/mtd/nand/mxs_nand.c
>> @@ -149,6 +149,13 @@ static inline uint32_t 
>> mxs_nand_get_ecc_strength(uint32_t page_data_size,
>>                                               uint32_t page_oob_size)
>>  {
>>       int ecc_strength;
>> +     int max_ecc_strength_supported;
>> +
>> +     /* Refer to Chapter 17 for i.MX6DQ, Chapter 18 for i.MX6SX */
>> +     if (is_cpu_type(MXC_CPU_MX6SX))
>> +             max_ecc_strength_supported = 62;
>> +     else
>> +             max_ecc_strength_supported = 40;
>
>       arm:  +   mx28evk_nand                  
>+drivers/mtd/nand/mxs_nand.c:155:18: error: 'MXC_CPU_MX6SX' undeclared (first use in this function)
>+drivers/mtd/nand/mxs_nand.c:155:18: note: each undeclared identifier is reported only once for each function it appears in
>+make[2]: *** [drivers/mtd/nand/mxs_nand.o] Error 1
>+make[1]: *** [drivers/mtd/nand] Error 2
>+make: *** [sub-make] Error 2

My bad. I only take mx6 into consideration when I did this patch.

>
>(among other failed targets)
>
>I tried to fix it by including asm/arch-imx/cpu.h, but then got undefined 
>reference to is_cpu_type().

Now is_cpu_type() is common to all i.MXes, but need this patch http://git.denx.de/?p=u-boot/u-boot-imx.git;a=commitdiff;h=bf3303c98b23a29d99acc5e28865db604873b699 which is still in imx tree now.
After applying the following patches, is_cpu_type should work.
http://git.denx.de/?p=u-boot/u-boot-imx.git;a=commit;h=7c015efa7f28911d538ddd7d12926edd95176791
http://git.denx.de/?p=u-boot/u-boot-imx.git;a=commit;h=8b647df9cae0ca65656cca19d4bd43239a9eca42
http://git.denx.de/?p=u-boot/u-boot-imx.git;a=commit;h=3e26a2224a828cd07d1d1df46cbea7e99cc87993
http://git.denx.de/?p=u-boot/u-boot-imx.git;a=commit;h=11caa3fa9dae79864726fcb763f100b4fd713884
http://git.denx.de/?p=u-boot/u-boot-imx.git;a=commit;h=bf3303c98b23a29d99acc5e28865db604873b699

Then do you need me to repost this patch after the upper five patches in imx tree merge into uboot master branch, or the 3 patches in this patchset go through imx tree?
https://patchwork.ozlabs.org/patch/498048/
https://patchwork.ozlabs.org/patch/498049/
https://patchwork.ozlabs.org/patch/498050/

Thanks,
Peng.

>
>-Scott
>

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