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- From 8f857c4b1ed23af5464538180466a48639bdab2b Mon Sep 17 00:00:00 2001
- From: Phil Elwell <phil@raspberrypi.org>
- Date: Wed, 30 Mar 2016 17:07:15 +0100
- Subject: [PATCH] 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
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