diff options
| author | Lexi Winter <lexi@le-Fay.ORG> | 2024-04-10 03:11:36 +0000 |
|---|---|---|
| committer | Warner Losh <imp@FreeBSD.org> | 2024-04-10 03:11:39 +0000 |
| commit | ac83063d37e5e92ad048cc4ed958654c02103f74 (patch) | |
| tree | fc3579b09fc497db32bfc70d5d162a4335b2fe4f /sys/modules | |
| parent | 054a4720591f0c98579bccef2751fd458ee4f71f (diff) | |
| download | src-ac83063d37e5e92ad048cc4ed958654c02103f74.tar.gz src-ac83063d37e5e92ad048cc4ed958654c02103f74.zip | |
bcm2838_xhci: add module
bcm2838_xhci(4) is a shim for the XHCI controller on the Raspberry Pi 4B
SoC. It loads the controller's firmware before passing control to the
normal xhci(4) driver.
When xhci(4) is built as a module (and not in the kernel), bcm2838_xhci
is not built at all and the RPi4's XHCI controller won't attach due to
missing firmware.
To fix this, build a new module, bcm2838_xhci.ko, which depends on
xhci.ko. For the dependency to work correctly, also modify xhci to
provide the 'xhci' module in addition to the 'xhci_pci' module it
already provided.
Since bcm2838_xhci is specific to a quirk of the RPi4 SoC, only build
the module for AArch64.
Reviewed by: imp
Pull Request: https://github.com/freebsd/freebsd-src/pull/1142
Diffstat (limited to 'sys/modules')
| -rw-r--r-- | sys/modules/usb/Makefile | 7 | ||||
| -rw-r--r-- | sys/modules/usb/bcm2838_xhci/Makefile | 12 |
2 files changed, 18 insertions, 1 deletions
diff --git a/sys/modules/usb/Makefile b/sys/modules/usb/Makefile index 2c593495b9a4..3a81c7fd44f3 100644 --- a/sys/modules/usb/Makefile +++ b/sys/modules/usb/Makefile @@ -44,7 +44,7 @@ MAKE+=" DEBUG_FLAGS+=-DUSB_REQ_DEBUG" SUBDIR = usb SUBDIR += ${_dwc_otg} ehci ${_musb} ohci uhci xhci ${_uss820dci} \ - ${_atmegadci} ${_avr32dci} ${_rsu} ${_rsufw} + ${_atmegadci} ${_avr32dci} ${_rsu} ${_rsufw} ${_bcm2838_xhci} SUBDIR += ${_rum} ${_run} ${_runfw} ${_uath} upgt usie ural ${_zyd} ${_urtw} SUBDIR += atp cfumass uhid uhid_snes ukbd ums udbp uep wmt wsp ugold uled \ usbhid @@ -98,6 +98,11 @@ _urtw= urtw _avr32dci= avr32dci .endif +.if ${MACHINE_CPUARCH} == "aarch64" +# The bcm2838_xhci shim is specific to the Raspberry Pi 4 SoC. +_bcm2838_xhci= bcm2838_xhci +.endif + .if ${MACHINE_CPUARCH} == "aarch64" || ${MACHINE_CPUARCH} == "amd64" || \ ${MACHINE_CPUARCH} == "i386" _uacpi= uacpi diff --git a/sys/modules/usb/bcm2838_xhci/Makefile b/sys/modules/usb/bcm2838_xhci/Makefile new file mode 100644 index 000000000000..3c90b4c8b32c --- /dev/null +++ b/sys/modules/usb/bcm2838_xhci/Makefile @@ -0,0 +1,12 @@ +# Copyright (c) 2024 Lexi Winter. +# +# SPDX-License-Identifier: BSD-2-Clause + +S= ${SRCTOP}/sys + +.PATH: $S/arm/broadcom/bcm2835 + +KMOD= bcm2838_xhci +SRCS= bcm2838_xhci.c + +.include <bsd.kmod.mk> |