[PATCH 1/3] arm64: dts: ti: Add GPMC NAND support

Nishanth Menon nm at ti.com
Thu Sep 14 09:04:50 PDT 2023


On 14:56-20230914, Nitin Yadav wrote:
> Hi Krzysztof,
> 
> On 14/09/23 11:57, Krzysztof Kozlowski wrote:
> > On 13/09/2023 13:47, Nitin Yadav wrote:
> >> Add support for AM62Q NAND card: X8 NAND EXPANSION
> >> BOARD card (PROC143E1) for AM62x LP SK board.

Commit message is all too wrong as well. Sigh.

> >>
> >> Signed-off-by: Nitin Yadav <n-yadav at ti.com>
> >> ---
> >>  arch/arm64/boot/dts/ti/k3-am62-main.dtsi | 29 ++++++++++++++++++++++++
> >>  arch/arm64/boot/dts/ti/k3-am62.dtsi      |  2 ++
> >>  2 files changed, 31 insertions(+)
> >>
> >> diff --git a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
> >> index 284b90c94da8..e93e79d8083f 100644
> >> --- a/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
> >> +++ b/arch/arm64/boot/dts/ti/k3-am62-main.dtsi
> >> @@ -955,4 +955,33 @@ mcasp2: audio-controller at 2b20000 {
> >>  		power-domains = <&k3_pds 192 TI_SCI_PD_EXCLUSIVE>;
> >>  		status = "disabled";
> >>  	};
> >> +	gpmc0: memory-controller at 3b000000 {
> >> +		status = "disabled";
> > 
> > status is never first in DTSI. Really, where did you see such code?
> Thank for pointing out, Will send a revised version.

GPMC is not functional without board specific interface configuration
such as pinmux. this approach, in fact is all over the place now and
discussed in the mailing list multiple times now.

What is missing here is the documentation of the constraints as to why
it is set as disabled by default.


> > 
> >> +		compatible = "ti,am64-gpmc";
> >> +		power-domains = <&k3_pds 80 TI_SCI_PD_EXCLUSIVE>;
> > 
> > First is compatible, second is reg/reg-names/ranges.
> > 
> > 
> > Best regards,
> > Krzysztof
> > 
> 
> -- 
> Regards,
> Nitin

-- 
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3  1A34 DDB5 849D 1736 249D



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