Re: [PATCH v2 06/16] arm64: dts: st: add LPDDR channel to stm32mp257f-dk board
From: Rob Herring <robh@kernel.org>
Date: 2025-07-15 03:20:21
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linux-clk, linux-devicetree, linux-doc, linux-perf-users, lkml
On Fri, Jul 11, 2025 at 04:48:58PM +0200, Clément Le Goffic wrote:
quoted hunk ↗ jump to hunk
Add 32bits LPDDR4 channel to the stm32mp257f-dk board. Signed-off-by: Clément Le Goffic <redacted> --- arch/arm64/boot/dts/st/stm32mp257f-dk.dts | 7 +++++++ 1 file changed, 7 insertions(+)diff --git a/arch/arm64/boot/dts/st/stm32mp257f-dk.dts b/arch/arm64/boot/dts/st/stm32mp257f-dk.dts index a278a1e3ce03..a97b41f14ecc 100644 --- a/arch/arm64/boot/dts/st/stm32mp257f-dk.dts +++ b/arch/arm64/boot/dts/st/stm32mp257f-dk.dts@@ -54,6 +54,13 @@ led-blue { }; }; + lpddr_channel: lpddr4-channel { + #address-cells = <1>; + #size-cells = <0>; + compatible = "jedec,lpddr4-channel";
Not tested because this doesn't match the binding.
+ io-width = <32>; + };
What would multiple channels look like? I think this needs some work. Like it should perhaps be within the memory node. It's a lot to just say 32-bit LPDDR4 x1.
+
memory@80000000 {
device_type = "memory";
reg = <0x0 0x80000000 0x1 0x0>;
--
2.43.0