tmakin/ack-tegra
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

tegra210b01: use bpmp for emc

Browse Source 
Make use of the existing tegra186-emc driver to handle emc
clocking and scaling via BPMP API instead of in kernel.

Downstream uses tables from emc and overrides the clock.
This commit is contained in:
Thomas Makin
2025-11-05 05:56:12 +00:00
parent 94681aeae8
commit 6c26ccf6d2
1 changed files with 20 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

31
arch/arm64/boot/dts/nvidia/tegra210b01.dtsi
View File

@@ -41,6 +41,25 @@
/delete-property/ pinctrl-names; /delete-property/ pinctrl-names;
}; };
mc: memory-controller@70019000 {
emc: external-memory-controller@7001b000 {
compatible = "nvidia,tegra210b01-emc";
reg = <0x0 0x7001b000 0x0 0x1000>,
<0x0 0x7001e000 0x0 0x1000>,
<0x0 0x7001f000 0x0 0x1000>;
clocks = <&bpmp 0>;
clock-names = "emc";
interrupts = <GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH>;
#interconnect-cells = <0>;
#cooling-cells = <2>;
nvidia,bpmp = <&bpmp>;
};
};
/delete-node/ external-memory-controller@7001b000;
mmc@700b0000 { mmc@700b0000 {
nvidia,default-tap = <0xb>; nvidia,default-tap = <0xb>;
nvidia,default-trim = <0xe>; nvidia,default-trim = <0xe>;
@@ -74,17 +93,7 @@
}; };
}; };
external-memory-controller@7001b000 { bpmp: bpmp@70016000 {
compatible = "nvidia,tegra210b01-emc";
clocks = <&bpmp 0>;
clock-names = "emc";
nvidia,bpmp = <&bpmp>;
/delete-property/ operating-points-v2;
};
bpmp@70016000 {
status = "okay"; status = "okay";
}; };