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

[Stefano Babic <sbabic@denx.de>]

On 26/08/2015 03:30, Peng Fan wrote:
> On Tue, Aug 25, 2015 at 09:14:58PM -0500, Scott Wood wrote:
>> On Wed, 2015-08-26 at 08:33 +0800, Peng Fan wrote:
>>> 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/
>>
>> Acked-by: Scott Wood <scottwood@freescale.com>
>>
>> I already have patches 1 and 3 applied locally, and will probably send a pull 
>> request as soon as buildman finishes.  Let me know if you want me to send 
>> that, and then you can send patch 2 through imx, or if you want me to pull 
>> patches 1 and 3 out so all can go via imx.
> 
> You can send pull request for patch 1 and 3. The 3 patches are independent on each other.
> I'll repost patch 2 when the is_cpu_type patch set merged to uboot upstream master branch with your Acked-by. Then imx or nand tree, both are ok.

Fine with me.

Regards,
Stefano

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