Commit a378b75e authored by Zahari Petkov's avatar Zahari Petkov Committed by Phil Elwell
Browse files

overlays: balenaFin v1.1.0 carrier board update 



A backward compatible update for the balenaFin carrier board for the
Raspberry Pi Compute Module 3/3+ Lite.

The updated overlay includes:
  * support for the newly introduced RGB LEDs
  * i2c-gpio and SDIO improvements
  * DT based Marvell 88W8887 configuration

Signed-off-by: default avatarZahari Petkov <zahari@balena.io>
parent 0448a1db

arch/arm/boot/dts/overlays/README

+1 −1
Original line number Diff line number Diff line
@@ -462,7 +462,7 @@ Params: swap_lr Reverse the channel allocation, which will also 


Name:   balena-fin

Info:   Overlay that enables WiFi, Bluetooth and the GPIO expander on the

        Balena Fin board.

        balenaFin carrier board for the Raspberry Pi Compute Module 3/3+ Lite.

Load:   dtoverlay=balena-fin

Params: <None>

arch/arm/boot/dts/overlays/balena-fin-overlay.dts

+44 −2
Original line number Diff line number Diff line
@@ -11,6 +11,7 @@ 
			pinctrl-0 = <&sdio_pins>;

			bus-width = <4>;

			brcm,overclock-50 = <35>;

			non-removable;

			status = "okay";

		};

	};
@@ -34,7 +35,8 @@ 
	fragment@2 {

		target-path = "/";

		__overlay__ {

			// We should investigate how to switch to mmc-pwrseq-sd8787

			// We should switch to mmc-pwrseq-sd8787 after making it

			// compatible with sd8887

			// Currently that module requires two GPIOs to function since it

			// targets a slightly different chip

			power_ctrl: power_ctrl {
@@ -46,10 +48,21 @@ 
			i2c_soft: i2c@0 {

				compatible = "i2c-gpio";

				gpios = <&gpio 43 0 /* sda */ &gpio 42 0 /* scl */>;

				i2c-gpio,delay-us = <2>; /* ~100 kHz */

				i2c-gpio,delay-us = <5>;

				i2c-gpio,scl-open-drain;

				i2c-gpio,sda-open-drain;

				#address-cells = <1>;

				#size-cells = <0>;

			};



			sd8xxx-wlan {

				drvdbg = <0x6>;

				drv_mode = <0x1>;

				cfg80211_wext = <0xf>;

				sta_name = "wlan";

				wfd_name = "p2p";

				cal_data_cfg = "none";

			};

		};

	};
@@ -74,6 +87,35 @@ 
				reg = <0x68>;

				status = "okay";

			};



			// RGB LEDs (>= v1.1.0)

			pca9633: pca9633@62 {

				compatible = "nxp,pca9633";

				reg = <0x62>;

				#address-cells = <1>;

				#size-cells = <0>;



				red@0 {

					label = "red";

					reg = <0>;

					linux,default-trigger = "none";

				};

				green@1 {

					label = "green";

					reg = <1>;

					linux,default-trigger = "none";

				};

				blue@2 {

					label = "blue";

					reg = <2>;

					linux,default-trigger = "none";

				};

				unused@3 {

					label = "unused";

					reg = <3>;

					linux,default-trigger = "none";

				};

			};

		};

	};

};