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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>
35 lines
1.5 KiB
Diff
35 lines
1.5 KiB
Diff
From 8f857c4b1ed23af5464538180466a48639bdab2b Mon Sep 17 00:00:00 2001
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From: Phil Elwell <phil@raspberrypi.org>
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Date: Wed, 30 Mar 2016 17:07:15 +0100
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Subject: [PATCH] BCM270X_DT: Document hazards of sdhost overlay
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Signed-off-by: Phil Elwell <phil@raspberrypi.org>
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---
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arch/arm/boot/dts/overlays/README | 8 +++++++-
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1 file changed, 7 insertions(+), 1 deletion(-)
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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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@@ -712,7 +712,11 @@ Params: <None>
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Name: sdhost
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-Info: Selects the bcm2835-sdhost SD/MMC driver, optionally with overclock
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+Info: Selects the bcm2835-sdhost SD/MMC driver, optionally with overclock.
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+ N.B. This overlay is designed for situations where the mmc driver is
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+ the default, so it disables the other (mmc) interface - this will kill
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+ WiFi on a Pi3. If this isn't what you want, either use the sdtweak
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+ overlay or the new sd_* dtparams of the base DTBs.
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Load: dtoverlay=sdhost,<param>=<val>
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Params: overclock_50 Clock (in MHz) to use when the MMC framework
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requests 50MHz
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@@ -771,6 +775,8 @@ Params: overclock_50 SD Clock
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Name: sdtweak
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Info: Tunes the bcm2835-sdhost SD/MMC driver
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+ N.B. This functionality is now available via the sd_* dtparams in the
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+ base DTB.
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Load: dtoverlay=sdtweak,<param>=<val>
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Params: overclock_50 Clock (in MHz) to use when the MMC framework
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requests 50MHz
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