linux-kernel - [PATCH v2 1/4] ARM: dts: s5pv210: aries: Add reserved memory for mfc

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Message-Id: <20190108165601.25708-2-pawel.mikolaj.chmiel@gmail.com>
Date:   Tue,  8 Jan 2019 17:55:58 +0100
From:   Paweł Chmiel <pawel.mikolaj.chmiel@...il.com>
To:     krzk@...nel.org
Cc:     kgene@...nel.org, robh+dt@...nel.org, mark.rutland@....com,
        linux@...linux.org.uk, pawel.mikolaj.chmiel@...il.com,
        xc-racer2@...e.ca, linux-arm-kernel@...ts.infradead.org,
        linux-samsung-soc@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH v2 1/4] ARM: dts: s5pv210: aries: Add reserved memory for mfc

THis commit adds memory reservation required by MFC to run.
On S5PV210 both regions needs to be on separate memory banks.
Size of both regions is taken from stock sources.

Signed-off-by: Paweł Chmiel <pawel.mikolaj.chmiel@...il.com>
---
Changes from v1:
   - Fixed name of nodes to be more generic
---
 arch/arm/boot/dts/s5pv210-aries.dtsi | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/arch/arm/boot/dts/s5pv210-aries.dtsi b/arch/arm/boot/dts/s5pv210-aries.dtsi
index 575094ea7024..89525e56cc7c 100644
--- a/arch/arm/boot/dts/s5pv210-aries.dtsi
+++ b/arch/arm/boot/dts/s5pv210-aries.dtsi
@@ -23,6 +23,24 @@
 			0x50000000 0x08000000>;
 	};
 
+	reserved-memory {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		mfc_left: region@...00000 {
+			compatible = "shared-dma-pool";
+			no-map;
+			reg = <0x43000000 0x2000000>;
+		};
+
+		mfc_right: region@...00000 {
+			compatible = "shared-dma-pool";
+			no-map;
+			reg = <0x51000000 0x2000000>;
+		};
+	};
+
 	wifi_pwrseq: wifi-pwrseq {
 		compatible = "mmc-pwrseq-simple";
 		reset-gpios = <&gpg1 2 GPIO_ACTIVE_LOW>;
@@ -329,6 +347,10 @@
 	status = "okay";
 };
 
+&mfc {
+	memory-region = <&mfc_left>, <&mfc_right>;
+};
+
 &pinctrl0 {
 	wlan_bt_en: wlan-bt-en {
 		samsung,pins = "gpb-5";
-- 
2.17.1