On 2/6/24 8:37 AM, Markus Schneider-Pargmann wrote:
Add efuse nodes describing chip variant and speed grade. Signed-off-by: Markus Schneider-Pargmann <msp@xxxxxxxxxxxx> --- arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi | 36 +++++++++++++++++++++- 1 file changed, 35 insertions(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi b/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi index fef76f52a52e..14419df43624 100644 --- a/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am62-wakeup.dtsi @@ -14,10 +14,44 @@ wkup_conf: syscon@43000000 { #size-cells = <1>; ranges = <0x0 0x00 0x43000000 0x20000>;+ wkup_efuse: efuse@0 {+ compatible = "socionext,uniphier-efuse"; + #address-cells = <1>; + #size-cells = <1>; + reg = <0x0 0x200>; + + nvmem-layout { + compatible = "fixed-layout"; + #address-cells = <1>; + #size-cells = <1>; + + chip_manufacturer: jtagidmfg@14 { + reg = <0x14 0x2>; + bits = <1 11>; + }; + + chip_partno: jtagidpartno@15 { + reg = <0x15 0x3>; + bits = <4 16>; + }; + + chip_variant: jtagidvariant@17 { + reg = <0x17 0x1>; + bits = <4 4>; + }; + + chip_speed: jtaguseridspeed@18 { + reg = <0x18 0x4>; + bits = <6 5>; + }; + }; + }; + chipid: chipid@14 {
If you remove the reg property you will want to drop the @14 also or you will get a DT check warning. That needs fixed in the binding example too (and the binding nodename pattern). Andrew
bootph-all; compatible = "ti,am654-chipid"; - reg = <0x14 0x4>; + nvmem-cells = <&chip_variant>, <&chip_partno>, <&chip_manufacturer>; + nvmem-cell-names = "chipvariant", "chippartno", "chipmanufacturer"; }; };
