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kernel-builder: build + bundle NXP IW620 mwifiex driver

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linux-ps5 currently ships no wifi driver — the PS5 onboard wifi is NXP
IW620 (not the upstream mwifiex), which lives at ps5-linux/ps5-linux-
mwifiex as an out-of-tree patch against nxp-imx/mwifiex. Users have to
clone that repo + run install.sh on the target, which needs gcc + kernel
headers and is a manual step every kernel bump.

Build it in the kernel-builder container right after the kernel: clone
both repos, apply ps5-iw620.patch, make against the kernel src tree,
install mlan.ko+moal.ko into /out/staging/lib/modules/$KVER/extra/
ps5-iw620/ with the NXP modprobe options + autoload conf. depmod -b
refreshes the index. All package formats (.deb/.rpm/.pkg.tar.zst) then
include the driver automatically.

MWIFIEX_REPO / MWIFIEX_REF overridable via env in case downstream wants
to test a fork or specific commit.
This commit is contained in:
mia26MAjFm
2026-06-20 17:07:11 -04:00
parent 71bce4c5cb
commit 247e4ea01b
1 changed files with 42 additions and 0 deletions
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42
docker/kernel-builder/build.sh
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@@ -34,4 +34,46 @@ make headers_install INSTALL_HDR_PATH="$HDR/usr"
export srctree=/src SRCARCH=x86
CC="${CROSS_COMPILE}gcc" HOSTCC=gcc MAKE=make /src/scripts/package/install-extmod-build "$HDR/lib/modules/$KVER/build"
# ---- NXP IW620 mwifiex driver (the PS5's onboard wifi) ----
# Build the out-of-tree moal+mlan modules against the kernel we just built
# and stage them into /out/staging so they get bundled in linux-ps5.{deb,rpm,
# pkg.tar.zst}. Without this, users get no wifi until they manually run
# ps5-linux-mwifiex/install.sh on the target (which needs gcc + headers).
echo "=== Building NXP IW620 mwifiex driver ==="
MWIFIEX_REPO="${MWIFIEX_REPO:-https://github.com/ps5-linux/ps5-linux-mwifiex.git}"
MWIFIEX_REF="${MWIFIEX_REF:-main}"
MWIFIEX_NXP_REPO=https://github.com/nxp-imx/mwifiex.git
MWIFIEX_NXP_REF=lf-6.18.2_1.0.0
PS5_MW=/tmp/ps5-linux-mwifiex
NXP_MW=/tmp/nxp-mwifiex
rm -rf "$PS5_MW" "$NXP_MW"
git clone "$MWIFIEX_REPO" "$PS5_MW"
git -C "$PS5_MW" checkout "$MWIFIEX_REF" 2>/dev/null || true
git clone --depth 1 --branch "$MWIFIEX_NXP_REF" "$MWIFIEX_NXP_REPO" "$NXP_MW"
git -C "$NXP_MW" apply "$PS5_MW/ps5-iw620.patch"
# Build against the kernel source we just built (out-of-tree build needs
# the in-tree build dir, not just headers; same as install-extmod-build).
make -C "$NXP_MW" CONFIG_OBJTOOL= KERNELDIR=/src ARCH=x86 -j"$(nproc)"
[ -f "$NXP_MW/mlan.ko" ] && [ -f "$NXP_MW/moal.ko" ] \
|| { echo "ERROR: mwifiex build did not produce mlan.ko/moal.ko"; exit 1; }
EXTRA_DIR="/out/staging/lib/modules/$KVER/extra/ps5-iw620"
mkdir -p "$EXTRA_DIR"
install -m 0644 "$NXP_MW/mlan.ko" "$EXTRA_DIR/mlan.ko"
install -m 0644 "$NXP_MW/moal.ko" "$EXTRA_DIR/moal.ko"
# Modprobe + modules-load.d so the driver auto-loads at boot.
mkdir -p /out/staging/etc/modprobe.d /out/staging/etc/modules-load.d
echo moal > /out/staging/etc/modules-load.d/moal
cat > /out/staging/etc/modprobe.d/moal.conf <<'MPCONF'
# PS5 IW620 mwifiex (NXP moal/mlan, built out-of-tree by kernel-builder).
softdep moal pre: cfg80211 mlan
options moal fw_name=nxp/pcieuartiw620_combo_v1.bin pcie_int_mode=1 drv_mode=1 cfg80211_wext=4 sta_name=mlan ext_scan=1 auto_fw_reload=0 wifi_reset_config=0 sched_scan=0 ps_mode=2 auto_ds=2 amsdu_disable=1
MPCONF
# Rebuild module index so modprobe moal works without depmod -a post-install.
depmod -b /out/staging "$KVER"
echo "=== Build artifacts staged in /out/staging ==="