[Buildroot] [PATCH v1] package/rpi-wifi-firmware: provide convenience links for RPi3A+, RPi3B+ and RPi4B firmware configuration files

[Peter Seiderer]

Provide convenience links for BCM43455/CYW43455 based RPi3A+, RPi3B+ and RPi4B
WIFI firmware configuration files to avoid runtime firmware loading warning in
the kernel logs, e.g. (RPi3B+):

  brcmfmac mmc1:0001:1: Direct firmware load for brcm/brcmfmac43455-sdio.raspberrypi,3-model-b-plus.txt failed with error -2

or (RP4B

  brcmfmac mmc1:0001:1: Direct firmware load for brcm/brcmfmac43455-sdio.raspberrypi,4-model-b.txt failed with error -2

Signed-off-by: Peter Seiderer <ps.report at gmx.net>
---
 package/rpi-wifi-firmware/rpi-wifi-firmware.mk | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/package/rpi-wifi-firmware/rpi-wifi-firmware.mk b/package/rpi-wifi-firmware/rpi-wifi-firmware.mk
index 24ba5941b0..a136f4b173 100644
--- a/package/rpi-wifi-firmware/rpi-wifi-firmware.mk
+++ b/package/rpi-wifi-firmware/rpi-wifi-firmware.mk
@@ -12,6 +12,9 @@ RPI_WIFI_FIRMWARE_LICENSE_FILES = LICENCE.broadcom_bcm43xx
 define RPI_WIFI_FIRMWARE_INSTALL_TARGET_CMDS
 	$(INSTALL) -d $(TARGET_DIR)/lib/firmware/brcm
 	$(INSTALL) -m 0644 $(@D)/firmware/brcm/brcmfmac* $(TARGET_DIR)/lib/firmware/brcm
+	ln -sf brcmfmac43455-sdio.txt $(TARGET_DIR)/lib/firmware/brcm/brcmfmac43455-sdio.raspberrypi,3-model-a-plus.txt
+	ln -sf brcmfmac43455-sdio.txt $(TARGET_DIR)/lib/firmware/brcm/brcmfmac43455-sdio.raspberrypi,3-model-b-plus.txt
+	ln -sf brcmfmac43455-sdio.txt $(TARGET_DIR)/lib/firmware/brcm/brcmfmac43455-sdio.raspberrypi,4-model-b.txt
 endef
 
 $(eval $(generic-package))
-- 
2.30.2