This is a note to let you know that I've just added the patch titled
arm64: dts: imx8mp: Add NPU Node
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
arm64-dts-imx8mp-add-npu-node.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 4e405d9b90f93a8236dd075f32da65569e870943
Author: Adam Ford <aford173@xxxxxxxxx>
Date: Sun Oct 22 11:19:10 2023 -0500
arm64: dts: imx8mp: Add NPU Node
[ Upstream commit 4bedc468b725d55655dc8c9f5528932f4d77ccb0 ]
The NPU is based on the Vivante GC8000 and its power-domain
is controlled my pgc_mlmix. Since the power-domain uses
some of these clocks, setup the clock parent and rates
inside the power-domain, and add the NPU node.
The data sheet states the CLK_ML_AHB should be 300MHz for
nominal, but 800MHz clock will divide down to 266 instead.
Boards which operate in over-drive mode should update the
clocks on their boards accordingly. When the driver loads,
the NPU numerates as:
etnaviv-gpu 38500000.npu: model: GC8000, revision: 8002
Signed-off-by: Adam Ford <aford173@xxxxxxxxx>
Reviewed-by: Alexander Stein <alexander.stein@xxxxxxxxxxxxxxx>
Signed-off-by: Shawn Guo <shawnguo@xxxxxxxxxx>
Stable-dep-of: 106f68fc9da3 ("arm64: dts: imx8mp: Fix pgc_mlmix location")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
index 4b50920ac2049..56f72d264eee8 100644
--- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
@@ -886,6 +886,15 @@ pgc_mlmix: power-domain@24 {
clocks = <&clk IMX8MP_CLK_ML_AXI>,
<&clk IMX8MP_CLK_ML_AHB>,
<&clk IMX8MP_CLK_NPU_ROOT>;
+ assigned-clocks = <&clk IMX8MP_CLK_ML_CORE>,
+ <&clk IMX8MP_CLK_ML_AXI>,
+ <&clk IMX8MP_CLK_ML_AHB>;
+ assigned-clock-parents = <&clk IMX8MP_SYS_PLL1_800M>,
+ <&clk IMX8MP_SYS_PLL1_800M>,
+ <&clk IMX8MP_SYS_PLL1_800M>;
+ assigned-clock-rates = <800000000>,
+ <800000000>,
+ <300000000>;
};
};
};
@@ -1970,6 +1979,18 @@ vpumix_blk_ctrl: blk-ctrl@38330000 {
interconnect-names = "g1", "g2", "vc8000e";
};
+ npu: npu@38500000 {
+ compatible = "vivante,gc";
+ reg = <0x38500000 0x200000>;
+ interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clk IMX8MP_CLK_NPU_ROOT>,
+ <&clk IMX8MP_CLK_NPU_ROOT>,
+ <&clk IMX8MP_CLK_ML_AXI>,
+ <&clk IMX8MP_CLK_ML_AHB>;
+ clock-names = "core", "shader", "bus", "reg";
+ power-domains = <&pgc_mlmix>;
+ };
+
gic: interrupt-controller@38800000 {
compatible = "arm,gic-v3";
reg = <0x38800000 0x10000>,
