From 857f2cbda336ac4122033b9e9f6ddb92b18559a9 Mon Sep 17 00:00:00 2001
From: Qiyang Sun <qs2g22@soton.ac.uk>
Date: Fri, 2 Aug 2024 15:17:51 +0100
Subject: [PATCH] Update fastinit, add GPIO support
---
recipes-bsp/bootfiles/rpi-cmdline.bbappend | 1 +
recipes-core/fastinit/fastinit.bb | 2 ++
recipes-core/fastinit/files/fastinit.sh | 5 ++++-
recipes-core/images/mar-image-minimal.bb | 2 ++
4 files changed, 9 insertions(+), 1 deletion(-)
diff --git a/recipes-bsp/bootfiles/rpi-cmdline.bbappend b/recipes-bsp/bootfiles/rpi-cmdline.bbappend
index 5228eea..edd3908 100644
--- a/recipes-bsp/bootfiles/rpi-cmdline.bbappend
+++ b/recipes-bsp/bootfiles/rpi-cmdline.bbappend
@@ -5,3 +5,4 @@ CMDLINE:append = " modules.load=dwc2,g_serial"
CMDLINE:append = " earlycon=uart8250,mmio32,0x20215040"
#CMDLINE:append = " earlycon=pl011,mmio32,0x20201000"
+CMDLINE:append = " init=/usr/sbin/fastinit.sh 1"
diff --git a/recipes-core/fastinit/fastinit.bb b/recipes-core/fastinit/fastinit.bb
index 1d97a8d..035bea3 100644
--- a/recipes-core/fastinit/fastinit.bb
+++ b/recipes-core/fastinit/fastinit.bb
@@ -3,6 +3,8 @@ LICENSE = "CLOSED"
SRC_URI = "file://fastinit.sh"
+DEPENDS = "libgpiod"
+
S = "${WORKDIR}"
do_install() {
diff --git a/recipes-core/fastinit/files/fastinit.sh b/recipes-core/fastinit/files/fastinit.sh
index 059a909..c05cafa 100755
--- a/recipes-core/fastinit/files/fastinit.sh
+++ b/recipes-core/fastinit/files/fastinit.sh
@@ -25,10 +25,12 @@ level_one() {
mount -t sysfs sysfs /sys
mount -o ro /dev/mmcblk0p1 /boot
+ log_to_kernel "setting gpio 23 to high"
+ /usr/bin/gpioset -c 0 23=1 &
+
log_to_kernel "getting teletypes on ttyS0"
/sbin/getty -L 115200 ttyS0 vt100
}
-
level_five() {
exec /sbin/init 5
}
@@ -51,6 +53,7 @@ else
;;
1)
log_to_kernel "entering runlevel 1 (minimal)"
+ log_to_kernel "runlevel 1: tty, serial, gpio"
level_one
;;
5)
diff --git a/recipes-core/images/mar-image-minimal.bb b/recipes-core/images/mar-image-minimal.bb
index 30a2700..2582ff4 100644
--- a/recipes-core/images/mar-image-minimal.bb
+++ b/recipes-core/images/mar-image-minimal.bb
@@ -6,6 +6,8 @@ IMAGE_INSTALL = "packagegroup-core-boot \
python3-pyserial \
screen \
usb-modeswitch \
+ libgpiod \
+ libgpiod-tools \
fastinit \
serial-usb \
${CORE_IMAGE_EXTRA_INSTALL}"
--
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