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Diffstat (limited to 'doc/device-tree-bindings/sysinfo/google,coral.txt')
| -rw-r--r-- | doc/device-tree-bindings/sysinfo/google,coral.txt | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/doc/device-tree-bindings/sysinfo/google,coral.txt b/doc/device-tree-bindings/sysinfo/google,coral.txt new file mode 100644 index 0000000..d8a1a79 --- /dev/null +++ b/doc/device-tree-bindings/sysinfo/google,coral.txt @@ -0,0 +1,37 @@ +Google Coral sysinfo information +================================ + +This binding allows information about the board to be described. It includes +the SMBIOS binding as well. + +Required properties: + + - compatible: "google,coral" + - recovery-gpios: GPIO to use for recovery button (-1 if none) + - wite-protect-gpios: GPIO to use for write-protect screw + - phase-enforce-gpios: GPIO to indicate the board is in final ship mode + - memconfig-gpios: 4 GPIOs to use to read memory config (as base2 int) + +Optional properties: + - skuconfig-gpios: 2 GPIOs to use to read SKU ID. If not present, the + Chromium OS EC SKU_ID is used instead + +Example: + +board: board { + compatible = "google,coral"; + recovery-gpios = <&gpio_nw (-1) GPIO_ACTIVE_LOW>; + write-protect-gpios = <&gpio_nw GPIO_75 GPIO_ACTIVE_HIGH>; + phase-enforce-gpios = <&gpio_n GPIO_10 GPIO_ACTIVE_HIGH>; + memconfig-gpios = <&gpio_nw GPIO_101 GPIO_ACTIVE_HIGH + &gpio_nw GPIO_102 GPIO_ACTIVE_HIGH + &gpio_n GPIO_38 GPIO_ACTIVE_HIGH + &gpio_n GPIO_45 GPIO_ACTIVE_HIGH>; + + /* + * This is used for reef only: + * + * skuconfig-gpios = <&gpio_nw GPIO_16 GPIO_ACTIVE_HIGH + * &gpio_nw GPIO_17 GPIO_ACTIVE_HIGH>; + */ + }; |