[PATCH 1/2] Integrated Flash Controller support

[LiuShuo]

于 2011年10月30日 21:04, Artem Bityutskiy 写道:
> Probably some PPC mailing list should be CCed? Could you please CC at
> least LKML?
Have re-sent.
> On Fri, 2011-10-28 at 13:40 +0800, b35362 at freescale.com wrote:
>> +config FSL_IFC
>> +        bool "Freescale Integrated Flash Controller support"
>> +        depends on FSL_SOC
>> +        help
>> +          Enables reporting of errors from the Freescale integrated
>> +          flash controller.  Also contains some common code used by
>> +          drivers for specific ifc controller peripherals.
> Why this cannot be a module?
Have changed it to be selected by other drivers only (NAND_FSL_IFC).
>
>> +/*
>> + * IFC Controller NAND Machine registers
>> + */
>> +struct fsl_ifc_nand {
>> +	__be32 ncfgr;
>> +	u32 res1[0x4];
>> +	__be32 nand_fcr0;
>> +	__be32 nand_fcr1;
>> +	u32 res2[0x8];
>> +	__be32 row0;
>> +	u32 res3;
>> +	__be32 col0;
>> +	u32 res4;
>> +	__be32 row1;
>> +	u32 res5;
>> +	__be32 col1;
>> +	u32 res6;
>> +	__be32 row2;
>> +	u32 res7;
>> +	__be32 col2;
>> +	u32 res8;
>> +	__be32 row3;
>> +	u32 res9;
>> +	__be32 col3;
>> +	u32 res10[0x24];
> I do not know the HW, but I wonder why some fields are __be32 and some
> are u32? What is the logic behind that?
>
These u32s are reserved space, I think it should be ok.

-LiuShuo