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From f6c213fbd75a2efeb2e8ef0034be7376a306f7fd Mon Sep 17 00:00:00 2001
From: Phil Elwell <phil@raspberrypi.org>
Date: Fri, 9 Oct 2015 10:49:00 +0100
Subject: [PATCH 200/203] BCM270X_DT: Make mmc overlay compatible with current
firmware
The original DT overlay logic followed a merge-then-patch procedure,
i.e. parameters are applied to the loaded overlay before the overlay
is merged into the base DTB. This sequence has been changed to
patch-then-merge, in order to support parameterised node names, and
to protect against bad overlays. As a result, overrides (parameters)
must only target labels in the overlay, but the overlay can obviously target nodes in the base DTB.
mmc-overlay.dts (that switches back to the original mmc sdcard
driver) is the only overlay violating that rule, and this patch
fixes it.
---
arch/arm/boot/dts/overlays/mmc-overlay.dts | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
--- a/arch/arm/boot/dts/overlays/mmc-overlay.dts
+++ b/arch/arm/boot/dts/overlays/mmc-overlay.dts
@@ -7,13 +7,13 @@
fragment@0 {
target = <&mmc>;
- __overlay__ {
+ frag0: __overlay__ {
brcm,overclock-50 = <0>;
};
};
__overrides__ {
- overclock_50 = <&mmc>,"brcm,overclock-50:0";
- force_pio = <&mmc>,"brcm,force-pio?";
+ overclock_50 = <&frag0>,"brcm,overclock-50:0";
+ force_pio = <&frag0>,"brcm,force-pio?";
};
};
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