From 25a847b50f6bd38a79d1cca405a250b07a3bb793 Mon Sep 17 00:00:00 2001
From: Jon Mason <jon.mason@arm.com>
Date: Mon, 27 Apr 2026 09:57:10 -0400
Subject: [PATCH] raspberrypi.conf: add QB_ variables for runqemu

Add the relevant QB_ variables sufficient to get the QEMU raspi1ap model
running with runqemu.  The dwc_otg.fiq_fsm_enable setting is necessary
to get USB devices (both disk and net) working.  Without this, boot
hangs.  The initcall_blacklist=bcm2835_pm_driver_init is needed to
workaround other boot issues.  Seems like the PM HW emulation isn't
present in the QEMU model.

Adding the QB_ fields, etc to raspberrypi.conf, is adding support to
raspberrypi-cm, which doesn't have an emulated board, and adding some of
the wrong fields to raspberrypi0.  So, remove the include and put the
contents in the relevant files.

Signed-off-by: Jon Mason <jon.mason@arm.com>
---
 conf/machine/raspberrypi-cm.conf |  9 ++++++++-
 conf/machine/raspberrypi.conf    | 18 ++++++++++++++++++
 conf/machine/raspberrypi0.conf   |  9 ++++++++-
 3 files changed, 34 insertions(+), 2 deletions(-)

diff --git a/conf/machine/raspberrypi-cm.conf b/conf/machine/raspberrypi-cm.conf
index 365d030..cfc7380 100644
--- a/conf/machine/raspberrypi-cm.conf
+++ b/conf/machine/raspberrypi-cm.conf
@@ -3,6 +3,13 @@
 #@DESCRIPTION: Machine configuration for the RaspberryPi Compute Module (CM1)
 
 MACHINEOVERRIDES =. "raspberrypi:"
-include conf/machine/raspberrypi.conf
+DEFAULTTUNE ?= "arm1176jzfshf"
+
+require conf/machine/include/tune-arm1176jzf-s.inc
+include conf/machine/include/rpi-base.inc
+
+SDIMG_KERNELIMAGE  ?= "kernel.img"
+UBOOT_MACHINE = "rpi_config"
+SERIAL_CONSOLES ?= "115200;ttyAMA0"
 
 ARMSTUB ?= "armstub.bin"
diff --git a/conf/machine/raspberrypi.conf b/conf/machine/raspberrypi.conf
index 05263d7..7c4973f 100644
--- a/conf/machine/raspberrypi.conf
+++ b/conf/machine/raspberrypi.conf
@@ -12,3 +12,21 @@ UBOOT_MACHINE = "rpi_config"
 SERIAL_CONSOLES ?= "115200;ttyAMA0"
 
 ARMSTUB ?= "armstub.bin"
+
+#
+# Below are variables ONLY needed for running with Yocto/OE's runqemu script
+#
+IMAGE_CLASSES += "qemuboot"
+
+QB_SYSTEM_NAME = "qemu-system-arm"
+QB_MACHINE = "-machine raspi1ap"
+QB_MEM = "-m 512"
+QB_DTB = "bcm2708-rpi-b-plus.dtb"
+QB_NETWORK_DEVICE = "-device usb-net,netdev=net0,mac=@MAC@"
+QB_KERNEL_ROOT = "/dev/sda"
+# The dwc_otg.fiq_fsm_enable setting is necessary to get USB devices (both disk and net) working.  Without this, boot hangs
+# The initcall_blacklist=bcm2835_pm_driver_init is needed to workaround boot issues.  Seems like the PM HW emulation isn't present
+QB_KERNEL_CMDLINE_APPEND = "rootwait initcall_blacklist=bcm2835_pm_driver_init earlycon=pl011,0x20201000 dwc_otg.fiq_fsm_enable=0"
+QB_RNG = ""
+QB_ROOTFS_OPT = "-drive id=disk0,file=@ROOTFS@,if=none,format=raw -device usb-storage,drive=disk0"
+QB_DEFAULT_FSTYPE = "ext3"
diff --git a/conf/machine/raspberrypi0.conf b/conf/machine/raspberrypi0.conf
index 597918a..6bcfce8 100644
--- a/conf/machine/raspberrypi0.conf
+++ b/conf/machine/raspberrypi0.conf
@@ -3,6 +3,13 @@
 #@DESCRIPTION: Machine configuration for the RaspberryPi Zero board (https://www.raspberrypi.org/blog/raspberry-pi-zero)
 
 MACHINEOVERRIDES =. "raspberrypi:"
-include conf/machine/raspberrypi.conf
+DEFAULTTUNE ?= "arm1176jzfshf"
 
+require conf/machine/include/tune-arm1176jzf-s.inc
+include conf/machine/include/rpi-base.inc
+
+SDIMG_KERNELIMAGE  ?= "kernel.img"
+UBOOT_MACHINE = "rpi_config"
 SERIAL_CONSOLES ?= "115200;ttyAMA0"
+
+ARMSTUB ?= "armstub.bin"