From: Tobias Schramm <t.schramm@manjaro.org>
To: Rob Herring <robh+dt@kernel.org>,
Nicolas Saenz Julienne <nsaenzjulienne@suse.de>,
Stefan Wahren <stefan.wahren@i2se.com>
Cc: devicetree@vger.kernel.org,
bcm-kernel-feedback-list@broadcom.com,
linux-kernel@vger.kernel.org,
Tobias Schramm <t.schramm@manjaro.org>
Subject: [PATCH v2 1/1] ARM: dts: bcm2711: Enable ddr modes on emmc2 controller
Date: Mon, 31 Aug 2020 23:59:36 +0200 [thread overview]
Message-ID: <20200831215936.550402-2-t.schramm@manjaro.org> (raw)
In-Reply-To: <20200831215936.550402-1-t.schramm@manjaro.org>
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@manjaro.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
next prev parent reply other threads:[~2020-08-31 22:00 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-31 21:59 [PATCH v2 0/1] Enable ddr modes on emmc2 of Raspberry Pi 4 B Tobias Schramm
2020-08-31 21:59 ` Tobias Schramm [this message]
2020-09-02 16:18 ` [PATCH v2 1/1] ARM: dts: bcm2711: Enable ddr modes on emmc2 controller Stefan Wahren
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