mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-23 15:32:33 +00:00
011f2c26f1
As usual these patches were extracted and rebased from the raspberry pi repo: https://github.com/raspberrypi/linux/tree/rpi-4.4.y Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
43 lines
1.3 KiB
Diff
43 lines
1.3 KiB
Diff
From f2c83096a1292894329f8c3855be4a21f31efa44 Mon Sep 17 00:00:00 2001
|
|
From: Andrew Litt <ajlitt@splunge.net>
|
|
Date: Mon, 11 Jan 2016 07:55:54 +0000
|
|
Subject: [PATCH] SDIO-overlay: add bus_width parameter
|
|
|
|
Allow setting of the SDIO bus width capability of the bcm2835-mmc
|
|
host. This is helpful when only a 1 bit wide bus is connected
|
|
between host and device but both host and device advertise 4 bit
|
|
mode.
|
|
---
|
|
arch/arm/boot/dts/overlays/README | 2 ++
|
|
arch/arm/boot/dts/overlays/sdio-overlay.dts | 2 ++
|
|
2 files changed, 4 insertions(+)
|
|
|
|
--- a/arch/arm/boot/dts/overlays/README
|
|
+++ b/arch/arm/boot/dts/overlays/README
|
|
@@ -634,6 +634,8 @@ Params: overclock_50 Clock (
|
|
poll_once Disable SDIO-device polling every second
|
|
(default on: polling once at boot-time)
|
|
|
|
+ bus_width Set the SDIO host bus width (default 4 bits)
|
|
+
|
|
|
|
Name: sdtweak
|
|
Info: Tunes the bcm2835-sdhost SD/MMC driver
|
|
--- a/arch/arm/boot/dts/overlays/sdio-overlay.dts
|
|
+++ b/arch/arm/boot/dts/overlays/sdio-overlay.dts
|
|
@@ -11,6 +11,7 @@
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&sdio_pins>;
|
|
non-removable;
|
|
+ bus-width = <4>;
|
|
status = "okay";
|
|
};
|
|
};
|
|
@@ -28,5 +29,6 @@
|
|
|
|
__overrides__ {
|
|
poll_once = <&sdio_mmc>,"non-removable?";
|
|
+ bus_width = <&sdio_mmc>,"bus-width:0";
|
|
};
|
|
};
|