0001-riscv-dts-hifive-premier-p550-reserve-4g-for-trace-b.patch

From 70b2f3bb58c03834607b2f74c055469cd2ed0a0b Mon Sep 17 00:00:00 2001
From: Bo Gan <ganboing@gmail.com>
Date: Mon, 13 Jan 2025 01:43:48 -0800
Subject: [PATCH] riscv: dts: hifive-premier-p550: reserve 4g for trace buffer

Signed-off-by: Bo Gan <ganboing@gmail.com>
---
 .../boot/dts/eswin/eic7700-hifive-premier-p550.dts    | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/riscv/boot/dts/eswin/eic7700-hifive-premier-p550.dts b/arch/riscv/boot/dts/eswin/eic7700-hifive-premier-p550.dts
index 8cdc9fdc9e34..1c542a9e3c74 100644
--- a/arch/riscv/boot/dts/eswin/eic7700-hifive-premier-p550.dts
+++ b/arch/riscv/boot/dts/eswin/eic7700-hifive-premier-p550.dts
@@ -85,6 +85,11 @@ g2d_4GB_boundary_reserved_4k {
 			no-map;
 			reg = <0x0 0xfffff000 0x0 0x1000>;
 		};
+
+		trace_4g {
+			no-map;
+			reg = <0x01 0x00000000 0x01 0x0000>;
+		};
 	};
 
 	soc {
@@ -95,6 +100,12 @@ reset_test@1e00e000 {
 					 <&d0_reset SCPU_RST_CTRL SW_SCPU_DBG_RSTN>;
 			reset-names = "bus", "core", "dbg";
 		};
+
+		pmem_trace@100000000 {
+			compatible = "pmem-region";
+			reg = <0x01 0x00000000 0x01 0x00000000>;
+			volatile;
+		};
 	};
 };
 
-- 
2.34.1