sunxi: introduce NCAT2 generation model

[Andre Przywara]

On Wed, 27 Sep 2023 12:42:52 +0300
Okhunjon Sobirjonov <okhunjon72 at gmail.com> wrote:

Hi,

> When NCAT2 generation model's introduced for t113,
> the modification in drivers/mmc/sunxi_mmc.c
> > + IS_ENABLED(CONFIG_SUNXI_GEN_NCAT2)) && (sdc_no == 2))  
> in struct mmc *sunxi_mmc_init(int sdc_no) seems to have
> some negative side effects, meaning enabling 8-bit mode for MMC2.

"Some negative side effects" sounds cute, but it actually breaks it ;-)

> Paticularly,  IS_ENABLED(CONFIG_SUNXI_GEN_NCAT2)
> should not be used for D1/T113 
> since there is not support for 8-bit mode for MMC2 yet.
> Therefore, the solution would be to drop this particular
> change entirely.

So yeah, that line is just plain wrong, it seems like all the NCAT SoCs we
have seen (D1/T113/R329) do no support 8-bit eMMC.

So thanks for the heads up, I will remove that line from v2.

> Signed-off-by: Okhunjon Sobirjonov <Okhunjon.Sobirjonov at Mec-electronics.com> 

S-o-b:'s are only needed for actual patch submissions, not for comments on
the list.

Cheers,
Andre