linux-kernel - [PATCH v11 7/8] ARM: dts: Aspeed: Witherspoon: Enable XDMA engine

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Date:   Tue,  5 May 2020 11:58:24 -0500
From:   Eddie James <eajames@...ux.ibm.com>
To:     linux-aspeed@...ts.ozlabs.org
Cc:     linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        robh+dt@...nel.org, joel@....id.au, andrew@...id.au,
        eajames@...ux.ibm.com
Subject: [PATCH v11 7/8] ARM: dts: Aspeed: Witherspoon: Enable XDMA engine

Add a reserved memory node for the VGA memory. Add the XDMA engine node,
enable it, and point it's memory region to the VGA memory.

Signed-off-by: Eddie James <eajames@...ux.ibm.com>
---
 arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts b/arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts
index a0f99e3..85d58a6 100644
--- a/arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts
+++ b/arch/arm/boot/dts/aspeed-bmc-opp-witherspoon.dts
@@ -27,6 +27,12 @@
 			reg = <0x98000000 0x04000000>; /* 64M */
 		};
 
+		vga_memory: region@...00000 {
+			no-map;
+			compatible = "shared-dma-pool";
+			reg = <0x9f000000 0x01000000>; /* 16M */
+		};
+
 		gfx_memory: framebuffer {
 			size = <0x01000000>;
 			alignment = <0x01000000>;
@@ -690,4 +696,9 @@
 	memory-region = <&video_engine_memory>;
 };
 
+&xdma {
+	status = "okay";
+	memory-region = <&vga_memory>;
+};
+
 #include "ibm-power9-dual.dtsi"
-- 
1.8.3.1