From: Tomaz Solc <tomaz.solc@tablix.org>
To: barebox@lists.infradead.org
Subject: [PATCH v2 1/8] ARM: rpi: switch emmc from sdhost to sdhci
Date: Mon, 18 Feb 2019 12:32:13 +0100 [thread overview]
Message-ID: <20190218113220.18649-2-tomaz.solc@tablix.org> (raw)
In-Reply-To: <20190218113220.18649-1-tomaz.solc@tablix.org>
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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next prev parent reply other threads:[~2019-02-18 11:32 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-18 11:32 [PATCH v2 0/8] Fixing MMC access on Raspberry Pi CM3 Tomaz Solc
2019-02-18 11:32 ` Tomaz Solc [this message]
2019-02-18 11:32 ` [PATCH v2 2/8] Kconfig: add pin controllers submenu Tomaz Solc
2019-02-18 11:32 ` [PATCH v2 3/8] pinctrl: bcm2835: move existing code from gpio Tomaz Solc
2019-02-18 11:32 ` [PATCH v2 4/8] pinctrl: bcm2835: register the pin controller Tomaz Solc
2019-02-18 11:32 ` [PATCH v2 5/8] mci: bcm2835: use device_initcall(), not coredev Tomaz Solc
2019-02-18 11:32 ` [PATCH v2 6/8] mci: bcm2835: parse other device tree properties Tomaz Solc
2019-02-18 11:32 ` [PATCH v2 7/8] ARM: rpi: Add device tree for Compute Module 3 Tomaz Solc
2019-02-18 11:32 ` [PATCH v2 8/8] ARM: rpi: add CONFIG_PINCTRL to rpi_defconfig Tomaz Solc
2019-02-19 9:08 ` [PATCH v2 0/8] Fixing MMC access on Raspberry Pi CM3 Sascha Hauer
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