BCM2837 has two mmc interfaces: sdhost and sdhci. On Raspberry Pi 3, sdhost is
normally used for SD card/MMC flash and sdhci for the wireless interface.
Barebox currently only has a driver for sdhci, so we disable the sdhost
interface and remap the pins so that the sdhci has access to the SD card/MMC
flash.
---
arch/arm/dts/bcm2837-rpi-3.dts | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/arch/arm/dts/bcm2837-rpi-3.dts b/arch/arm/dts/bcm2837-rpi-3.dts
index 194b41c23..51883613c 100644
--- a/arch/arm/dts/bcm2837-rpi-3.dts
+++ b/arch/arm/dts/bcm2837-rpi-3.dts
@@ -9,3 +9,12 @@
reg = <0x0 0x0>;
};
};
+
+&sdhci {
+ pinctrl-0 = <&emmc_gpio48>;
+ /delete-node/ wifi@1;
+};
+
+&sdhost {
+ status = "disabled";
+};
--
2.11.0
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