[PATCH v8 04/32] arm: qemu: Add a devicetree file for qemu_arm64 virt

Simon Glass sjg at chromium.org
Fri Dec 17 04:59:11 CET 2021


This uses QEMU virt which creates its own devicetree.

Add an empty version of this file, so that we can at least build this
board when devicetrees are required.

Tested-by: Heinrich Schuchardt <heinrich.schuchardt at canaonical.com>
Signed-off-by: Simon Glass <sjg at chromium.org>
---

(no changes since v7)

Changes in v7:
- Switch to using an empty file for qemu virt

Changes in v6:
- Expand the commit message based on comments

 arch/arm/dts/Makefile        |  2 +-
 arch/arm/dts/qemu-arm64.dts  | 11 +++++++++++
 configs/qemu_arm64_defconfig |  1 +
 3 files changed, 13 insertions(+), 1 deletion(-)
 create mode 100644 arch/arm/dts/qemu-arm64.dts

diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index eaad3b679cc..2d92b2f940d 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -1162,7 +1162,7 @@ dtb-$(CONFIG_TARGET_IMX8MM_CL_IOT_GATE_OPTEE) += imx8mm-cl-iot-gate-optee.dtb
 
 dtb-$(CONFIG_TARGET_EA_LPC3250DEVKITV2) += lpc3250-ea3250.dtb
 
-dtb-$(CONFIG_ARCH_QEMU) += qemu-arm.dtb
+dtb-$(CONFIG_ARCH_QEMU) += qemu-arm.dtb qemu-arm64.dtb
 
 targets += $(dtb-y)
 
diff --git a/arch/arm/dts/qemu-arm64.dts b/arch/arm/dts/qemu-arm64.dts
new file mode 100644
index 00000000000..096b3910728
--- /dev/null
+++ b/arch/arm/dts/qemu-arm64.dts
@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0+ OR MIT
+/*
+ * Empty device tree for qemu_arm64
+
+ * Copyright 2021 Google LLC
+ */
+
+/dts-v1/;
+
+/ {
+};
diff --git a/configs/qemu_arm64_defconfig b/configs/qemu_arm64_defconfig
index 02a5e940c41..3c75fb71828 100644
--- a/configs/qemu_arm64_defconfig
+++ b/configs/qemu_arm64_defconfig
@@ -5,6 +5,7 @@ CONFIG_SYS_MALLOC_LEN=0x1000000
 CONFIG_NR_DRAM_BANKS=1
 CONFIG_ENV_SIZE=0x40000
 CONFIG_ENV_SECT_SIZE=0x40000
+CONFIG_DEFAULT_DEVICE_TREE="qemu-arm64"
 CONFIG_DEBUG_UART_BASE=0x9000000
 CONFIG_DEBUG_UART_CLOCK=0
 CONFIG_DEBUG_UART=y
-- 
2.34.1.173.g76aa8bc2d0-goog



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