arm64: dts: imx8m: add NVMEM provider and consumer to read soc unique ID

In order to be able to use NVMEM APIs to read soc unique ID, add the
nvmem data cell and name for nvmem-cells to the "soc" node, and add a
nvmem node which provides soc unique ID to efuse@30350000.

Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Alice Guo <alice.guo@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
index d457ce8..9bee6f1 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
@@ -261,6 +261,8 @@
                #address-cells = <1>;
                #size-cells = <1>;
                ranges = <0x0 0x0 0x0 0x3e000000>;
+               nvmem-cells = <&imx8mm_uid>;
+               nvmem-cell-names = "soc_unique_id";
 
                aips1: bus@30000000 {
                        compatible = "fsl,aips-bus", "simple-bus";
@@ -518,6 +520,10 @@
                                #address-cells = <1>;
                                #size-cells = <1>;
 
+                               imx8mm_uid: unique-id@410 {
+                                       reg = <0x4 0x8>;
+                               };
+
                                cpu_speed_grade: speed-grade@10 {
                                        reg = <0x10 4>;
                                };

diff --git a/arch/arm64/boot/dts/freescale/imx8mn.dtsi b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
index e96fd9a..d021aba 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mn.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
@@ -245,6 +245,8 @@
                #address-cells = <1>;
                #size-cells = <1>;
                ranges = <0x0 0x0 0x0 0x3e000000>;
+               nvmem-cells = <&imx8mn_uid>;
+               nvmem-cell-names = "soc_unique_id";
 
                aips1: bus@30000000 {
                        compatible = "fsl,aips-bus", "simple-bus";
@@ -531,6 +533,10 @@
                                #address-cells = <1>;
                                #size-cells = <1>;
 
+                               imx8mn_uid: unique-id@410 {
+                                       reg = <0x4 0x8>;
+                               };
+
                                cpu_speed_grade: speed-grade@10 {
                                        reg = <0x10 4>;
                                };

diff --git a/arch/arm64/boot/dts/freescale/imx8mp.dtsi b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
index ec6ac52..9401e92 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mp.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mp.dtsi
@@ -222,6 +222,8 @@
                #address-cells = <1>;
                #size-cells = <1>;
                ranges = <0x0 0x0 0x0 0x3e000000>;
+               nvmem-cells = <&imx8mp_uid>;
+               nvmem-cell-names = "soc_unique_id";
 
                aips1: bus@30000000 {
                        compatible = "fsl,aips-bus", "simple-bus";
@@ -328,6 +330,10 @@
                                #address-cells = <1>;
                                #size-cells = <1>;
 
+                               imx8mp_uid: unique-id@420 {
+                                       reg = <0x8 0x8>;
+                               };
+
                                cpu_speed_grade: speed-grade@10 {
                                        reg = <0x10 4>;
                                };

diff --git a/arch/arm64/boot/dts/freescale/imx8mq.dtsi b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
index 6439859..9fcb001 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mq.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
@@ -291,6 +291,8 @@
                #size-cells = <1>;
                ranges = <0x0 0x0 0x0 0x3e000000>;
                dma-ranges = <0x40000000 0x0 0x40000000 0xc0000000>;
+               nvmem-cells = <&imx8mq_uid>;
+               nvmem-cell-names = "soc_unique_id";
 
                bus@30000000 { /* AIPS1 */
                        compatible = "fsl,aips-bus", "simple-bus";
@@ -555,6 +557,10 @@
                                #address-cells = <1>;
                                #size-cells = <1>;
 
+                               imx8mq_uid: soc-uid@410 {
+                                       reg = <0x4 0x8>;
+                               };
+
                                cpu_speed_grade: speed-grade@10 {
                                        reg = <0x10 4>;
                                };