* [PATCH] arm64: dts: rockchip: Document unused device on i2c1
@ 2025-06-04 2:41 Chris Morgan
2025-06-09 10:23 ` Heiko Stuebner
0 siblings, 1 reply; 2+ messages in thread
From: Chris Morgan @ 2025-06-04 2:41 UTC (permalink / raw)
To: devicetree; +Cc: heiko, conor+dt, krzk+dt, robh, Chris Morgan
From: Chris Morgan <macromorgan@hotmail.com>
Update the i2c1 bus noting that the unknown/unused device at 0x3c is an
iSmartWare SW2001 "encryption IC".
Based on the documentation I was able to find, this IC appears to be
used to authenticate a device for certain programs to ensure they only
run on authorized devices as a form of digital rights management.
Signed-off-by: Chris Morgan <macromorgan@hotmail.com>
---
arch/arm64/boot/dts/rockchip/rk3566-anbernic-rgxx3.dtsi | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/rockchip/rk3566-anbernic-rgxx3.dtsi b/arch/arm64/boot/dts/rockchip/rk3566-anbernic-rgxx3.dtsi
index 233eade30f21..645db9d3d297 100644
--- a/arch/arm64/boot/dts/rockchip/rk3566-anbernic-rgxx3.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3566-anbernic-rgxx3.dtsi
@@ -469,7 +469,7 @@ regulator-state-mem {
};
&i2c1 {
- /* Unknown/unused device at 0x3c */
+ /* Unused iSmartWare SW2001 encryption device at 0x3c */
status = "disabled";
};
--
2.43.0
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] arm64: dts: rockchip: Document unused device on i2c1
2025-06-04 2:41 [PATCH] arm64: dts: rockchip: Document unused device on i2c1 Chris Morgan
@ 2025-06-09 10:23 ` Heiko Stuebner
0 siblings, 0 replies; 2+ messages in thread
From: Heiko Stuebner @ 2025-06-09 10:23 UTC (permalink / raw)
To: devicetree, Chris Morgan
Cc: Heiko Stuebner, conor+dt, krzk+dt, robh, Chris Morgan
On Tue, 03 Jun 2025 21:41:19 -0500, Chris Morgan wrote:
> Update the i2c1 bus noting that the unknown/unused device at 0x3c is an
> iSmartWare SW2001 "encryption IC".
>
> Based on the documentation I was able to find, this IC appears to be
> used to authenticate a device for certain programs to ensure they only
> run on authorized devices as a form of digital rights management.
>
> [...]
Applied, thanks!
[1/1] arm64: dts: rockchip: Document unused device on i2c1
commit: e0d47ff478fa549aeb168d921b66011f0397007d
Best regards,
--
Heiko Stuebner <heiko@sntech.de>
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