openwrt/target/linux/brcm2708/patches-4.4/0217-BCM270X_DT-Document-hazards-of-sdhost-overlay.patch
Álvaro Fernández Rojas 3fc661a98c brcm2708: update linux 4.4 patches to latest version
As usual these patches were extracted from the raspberry pi repo:
https://github.com/raspberrypi/linux/tree/rpi-4.4.y
Also alphabetically order sound-soc kernel packages.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2016-06-08 21:23:21 +02:00

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1.5 KiB
Diff

From 8cbaec5167f764d2c7b88c2f465970fd08c55582 Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.org>
Date: Wed, 30 Mar 2016 17:07:15 +0100
Subject: [PATCH 217/381] BCM270X_DT: Document hazards of sdhost overlay
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
---
arch/arm/boot/dts/overlays/README | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
--- a/arch/arm/boot/dts/overlays/README
+++ b/arch/arm/boot/dts/overlays/README
@@ -712,7 +712,11 @@ Params: <None>
Name: sdhost
-Info: Selects the bcm2835-sdhost SD/MMC driver, optionally with overclock
+Info: Selects the bcm2835-sdhost SD/MMC driver, optionally with overclock.
+ N.B. This overlay is designed for situations where the mmc driver is
+ the default, so it disables the other (mmc) interface - this will kill
+ WiFi on a Pi3. If this isn't what you want, either use the sdtweak
+ overlay or the new sd_* dtparams of the base DTBs.
Load: dtoverlay=sdhost,<param>=<val>
Params: overclock_50 Clock (in MHz) to use when the MMC framework
requests 50MHz
@@ -771,6 +775,8 @@ Params: overclock_50 SD Clock
Name: sdtweak
Info: Tunes the bcm2835-sdhost SD/MMC driver
+ N.B. This functionality is now available via the sd_* dtparams in the
+ base DTB.
Load: dtoverlay=sdtweak,<param>=<val>
Params: overclock_50 Clock (in MHz) to use when the MMC framework
requests 50MHz