linux-kernel - [PATCH v2 1/1] ARM: dts: bcm2711: Enable ddr modes on emmc2 controller

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Date:   Mon, 31 Aug 2020 23:59:36 +0200
From:   Tobias Schramm <t.schramm@...jaro.org>
To:     Rob Herring <robh+dt@...nel.org>,
        Nicolas Saenz Julienne <nsaenzjulienne@...e.de>,
        Stefan Wahren <stefan.wahren@...e.com>
Cc:     devicetree@...r.kernel.org, bcm-kernel-feedback-list@...adcom.com,
        linux-kernel@...r.kernel.org,
        Tobias Schramm <t.schramm@...jaro.org>
Subject: [PATCH v2 1/1] ARM: dts: bcm2711: Enable ddr modes on emmc2 controller

This commit enables ddr modes for eMMC storage on emmc2.
The bcm2711 supports eMMC storage using ddr modes. The board
layout of the Raspberry Pi 4 supports them, too.

Signed-off-by: Tobias Schramm <t.schramm@...jaro.org>
---
 arch/arm/boot/dts/bcm2711-rpi-4-b.dts | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
index 222d7825e1ab..1851efebe9c6 100644
--- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
+++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts
@@ -191,6 +191,7 @@ &emmc2 {
 	vqmmc-supply = <&sd_io_1v8_reg>;
 	vmmc-supply = <&sd_vcc_reg>;
 	broken-cd;
+	mmc-ddr-3_3v;
 	status = "okay";
 };
 
-- 
2.28.0