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110 lines
2.8 KiB
Diff
110 lines
2.8 KiB
Diff
From 6cafe647492605d21c2418b6261bf3182b9229f2 Mon Sep 17 00:00:00 2001
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From: Zahari Petkov <zahari@balena.io>
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Date: Fri, 8 Feb 2019 13:03:38 +0200
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Subject: [PATCH] overlays: balenaFin v1.1.0 carrier board update
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A backward compatible update for the balenaFin carrier board for the
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Raspberry Pi Compute Module 3/3+ Lite.
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The updated overlay includes:
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* support for the newly introduced RGB LEDs
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* i2c-gpio and SDIO improvements
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* DT based Marvell 88W8887 configuration
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Signed-off-by: Zahari Petkov <zahari@balena.io>
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---
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arch/arm/boot/dts/overlays/README | 2 +-
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.../boot/dts/overlays/balena-fin-overlay.dts | 46 ++++++++++++++++++-
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2 files changed, 45 insertions(+), 3 deletions(-)
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--- a/arch/arm/boot/dts/overlays/README
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+++ b/arch/arm/boot/dts/overlays/README
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@@ -472,7 +472,7 @@ Params: swap_lr Reverse
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Name: balena-fin
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Info: Overlay that enables WiFi, Bluetooth and the GPIO expander on the
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- Balena Fin board.
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+ balenaFin carrier board for the Raspberry Pi Compute Module 3/3+ Lite.
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Load: dtoverlay=balena-fin
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Params: <None>
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--- a/arch/arm/boot/dts/overlays/balena-fin-overlay.dts
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+++ b/arch/arm/boot/dts/overlays/balena-fin-overlay.dts
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@@ -11,6 +11,7 @@
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pinctrl-0 = <&sdio_pins>;
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bus-width = <4>;
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brcm,overclock-50 = <35>;
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+ non-removable;
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status = "okay";
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};
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};
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@@ -34,7 +35,8 @@
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fragment@2 {
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target-path = "/";
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__overlay__ {
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- // We should investigate how to switch to mmc-pwrseq-sd8787
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+ // We should switch to mmc-pwrseq-sd8787 after making it
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+ // compatible with sd8887
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// Currently that module requires two GPIOs to function since it
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// targets a slightly different chip
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power_ctrl: power_ctrl {
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@@ -46,10 +48,21 @@
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i2c_soft: i2c@0 {
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compatible = "i2c-gpio";
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gpios = <&gpio 43 0 /* sda */ &gpio 42 0 /* scl */>;
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- i2c-gpio,delay-us = <2>; /* ~100 kHz */
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+ i2c-gpio,delay-us = <5>;
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+ i2c-gpio,scl-open-drain;
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+ i2c-gpio,sda-open-drain;
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#address-cells = <1>;
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#size-cells = <0>;
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};
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+
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+ sd8xxx-wlan {
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+ drvdbg = <0x6>;
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+ drv_mode = <0x1>;
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+ cfg80211_wext = <0xf>;
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+ sta_name = "wlan";
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+ wfd_name = "p2p";
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+ cal_data_cfg = "none";
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+ };
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};
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};
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@@ -74,6 +87,35 @@
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reg = <0x68>;
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status = "okay";
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};
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+
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+ // RGB LEDs (>= v1.1.0)
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+ pca9633: pca9633@62 {
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+ compatible = "nxp,pca9633";
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+ reg = <0x62>;
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+
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+ red@0 {
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+ label = "red";
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+ reg = <0>;
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+ linux,default-trigger = "none";
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+ };
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+ green@1 {
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+ label = "green";
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+ reg = <1>;
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+ linux,default-trigger = "none";
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+ };
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+ blue@2 {
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+ label = "blue";
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+ reg = <2>;
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+ linux,default-trigger = "none";
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+ };
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+ unused@3 {
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+ label = "unused";
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+ reg = <3>;
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+ linux,default-trigger = "none";
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+ };
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+ };
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};
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};
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};
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