openwrt/target/linux/brcm2708/patches-4.19/950-0385-overlays-sdio-Added-4-bit-support-on-GPIOs-34-39.-29.patch
Álvaro Fernández Rojas 4295485719 brcm2708: add linux 4.19 support
Boot tested on Raspberry Pi B+ (BCM2708) and Raspberry Pi 2 (BCM2709)

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2019-07-14 12:44:14 +02:00

48 lines
1.4 KiB
Diff

From 693450014feff59f24614f8032e7e1b798d8694c Mon Sep 17 00:00:00 2001
From: Adrien RICCIARDI <RICCIARDI-Adrien@users.noreply.github.com>
Date: Fri, 22 Mar 2019 11:35:30 +0100
Subject: [PATCH 385/703] overlays: sdio: Added 4-bit support on GPIOs 34-39.
(#2903)
---
arch/arm/boot/dts/overlays/README | 3 +++
arch/arm/boot/dts/overlays/sdio-overlay.dts | 9 +++++++++
2 files changed, 12 insertions(+)
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -1785,6 +1785,9 @@ Params: sdio_overclock SDIO Clo
gpios_34_37 Select GPIOs 34-37 for 1-bit mode. Must be used
with bus_width=1.
+ gpios_34_39 Select GPIOs 34-39 for 4-bit mode. Must be used
+ with bus_width=4 (the default).
+
Name: sdio-1bit
Info: This overlay is now deprecated. Use
--- a/arch/arm/boot/dts/overlays/sdio-overlay.dts
+++ b/arch/arm/boot/dts/overlays/sdio-overlay.dts
@@ -64,6 +64,14 @@
};
};
+ fragment@5 {
+ target = <&sdio_ovl_pins>;
+ __dormant__ {
+ brcm,pins = <34 35 36 37 38 39>;
+ brcm,pull = <0 2 2 2 2 2>;
+ };
+ };
+
fragment@6 {
target-path = "/aliases";
__overlay__ {
@@ -77,5 +85,6 @@
sdio_overclock = <&sdio_ovl>,"brcm,overclock-50:0";
gpios_22_25 = <0>,"=3";
gpios_34_37 = <0>,"=4";
+ gpios_34_39 = <0>,"=5";
};
};