From: Po-Kai Chi <pk.chi@mediatek.com>
To: Matthias Brugger <matthias.bgg@gmail.com>
Cc: <linux-kernel@vger.kernel.org>,
<linux-mediatek@lists.infradead.org>,
<devicetree@vger.kernel.org>, <wsd_upstream@mediatek.com>,
CC Hwang <cc.hwang@mediatek.com>,
Po-Kai Chi <pk.chi@mediatek.com>
Subject: [PATCH v2 3/4] arm64: dts: add DRAMC node for MT6779
Date: Fri, 16 Apr 2021 17:32:17 +0800 [thread overview]
Message-ID: <1618565538-6972-4-git-send-email-pk.chi@mediatek.com> (raw)
In-Reply-To: <1618565538-6972-1-git-send-email-pk.chi@mediatek.com>
Add the DRAMC node for the DRAMC kernel driver.
Properties are divided into three categories:
- Platform DTS:
MediaTek DRAMC platform common part.
- Project DTS:
Runtime filled in by bootloader according to the board
hardware configuration.
- Driver level:
Hardware-specific register settings, encapsulated as
compatible data for better DTS compatibility.
Signed-off-by: Po-Kai Chi <pk.chi@mediatek.com>
---
arch/arm64/boot/dts/mediatek/mt6779-evb.dts | 9 +++++++++
arch/arm64/boot/dts/mediatek/mt6779.dtsi | 18 ++++++++++++++++++
2 files changed, 27 insertions(+)
diff --git a/arch/arm64/boot/dts/mediatek/mt6779-evb.dts b/arch/arm64/boot/dts/mediatek/mt6779-evb.dts
index 164f5cb..5d2dde7 100644
--- a/arch/arm64/boot/dts/mediatek/mt6779-evb.dts
+++ b/arch/arm64/boot/dts/mediatek/mt6779-evb.dts
@@ -29,3 +29,12 @@
&uart0 {
status = "okay";
};
+
+&dramc {
+ mediatek,dram-type = <0>;
+ mediatek,channel-cnt = <2>;
+ mediatek,rank-cnt = <2>;
+ mediatek,rank-size = <0x0 0x0>;
+ mediatek,mr-cnt = <1>;
+ mediatek,mr = <0x5 0xff>;
+};
diff --git a/arch/arm64/boot/dts/mediatek/mt6779.dtsi b/arch/arm64/boot/dts/mediatek/mt6779.dtsi
index 9bdf514..28492a0 100644
--- a/arch/arm64/boot/dts/mediatek/mt6779.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt6779.dtsi
@@ -206,6 +206,24 @@
clock-names = "devapc-infra-clock";
};
+ dramc: dramc@10230000 {
+ compatible = "mediatek,mt6779-dramc";
+ reg = <0 0x10230000 0 0x2000>, /* DRAMC AO CHA */
+ <0 0x10240000 0 0x2000>, /* DRAMC AO CHB */
+ <0 0x10234000 0 0x1000>, /* DRAMC NAO CHA */
+ <0 0x10244000 0 0x1000>, /* DRAMC NAO CHB */
+ <0 0x10238000 0 0x2000>, /* DDRPHY AO CHA */
+ <0 0x10248000 0 0x2000>; /* DDRPHY AO CHB */
+ mediatek,support-channel-cnt = <2>;
+ mediatek,freq-cnt = <6>;
+ mediatek,freq-step = <3718 3733>,
+ <3094 3200>,
+ <2392 2400>,
+ <1534 1600>,
+ <1196 1200>,
+ <754 800>;
+ };
+
uart0: serial@11002000 {
compatible = "mediatek,mt6779-uart",
"mediatek,mt6577-uart";
--
1.7.9.5
next prev parent reply other threads:[~2021-04-16 9:32 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-16 9:32 [PATCH v2] memory: mediatek: add DRAM controller driver Po-Kai Chi
2021-04-16 9:32 ` [PATCH v2 1/4] dt-bindings: memory: Add binding for MediaTek DRAM Controller Po-Kai Chi
2021-05-04 14:00 ` Krzysztof Kozlowski
2021-04-16 9:32 ` [PATCH v2 2/4] memory: mediatek: add DRAM controller driver Po-Kai Chi
2021-04-20 18:28 ` Rob Herring
2021-04-27 5:13 ` Po-Kai Chi
2021-05-04 14:05 ` Krzysztof Kozlowski
2021-04-16 9:32 ` Po-Kai Chi [this message]
2021-04-16 9:32 ` [PATCH v2 4/4] arm64: defconfig: Enable MediaTek DRAMC common driver Po-Kai Chi
2021-05-04 14:06 ` Krzysztof Kozlowski
2021-05-04 13:56 ` [PATCH v2] memory: mediatek: add DRAM controller driver Krzysztof Kozlowski
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