configs/amarula_a64_relic: add WiFi support

Amarula A64-Relic board has AP6330 WiFi/BT combo, but does
not have ethernet port. So it makes sense to enable wireless
networking by default:
- add broadcom wireless firmware package to image
- add basic wireless tools to image
- add rootfs overlay with proper NVRAM file for on-board AP6330 chip
- add mdev to image to enable module autoloading
- update readme.txt to test wifi

Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

board/amarula/a64-relic/readme.txt

@@ -76,6 +76,15 @@ capability of U-Boot. To achieve this:
     => mmc dev 1
     => ums 0 mmc 1
 
+WiFi
+====
+
+ # wpa_passphrase ACCESSPOINTNAME >> /etc/wpa_supplicant.conf
+   (type password and enter)
+ # wpa_supplicant -i wlan0 -c /etc/wpa_supplicant.conf -B
+ # udhcpc -i wlan0
+ # ping google.com
+
 --
 Jagan Teki <jagan@amarulasolutions.com>
 29-Jun-2018

board/amarula/a64-relic/rootfs_overlay/lib/firmware/brcm/brcmfmac4330-sdio.txt

@@ -0,0 +1,83 @@
+#AP6330_NVRAM_V1.0_20121130
+#Sample variables file for BCM94330 SD FC AGB board
+manfid=0x2d0
+prodid=0x0547
+vendid=0x14e4
+devid=0x4360
+boardtype=0x05e1
+boardrev=0x1202
+boardflags=0x0080200
+nocrc=1
+xtalfreq=26000
+boardnum=22
+macaddr=00:90:4c:c5:12:38
+ag0=254
+aa2g=1
+ccode=ALL
+pa0itssit=0x20
+pa0b0=5587
+pa0b1=-633
+pa0b2=-158
+rssismf2g=0xa
+rssismc2g=0x3
+rssisav2g=0x7
+#rssi params for 5GHz
+rssismf5g=0x4
+rssismc5g=0x3
+rssisav5g=0x7
+#PA parameters for lower a-band
+pa1lob0=4748
+pa1lob1=-566
+pa1lob2=-180
+#PA parameters for midband
+pa1b0=4762
+pa1b1=-593
+pa1b2=-172
+#PA parameters for high band
+#pa1hib0=4596
+pa1hib0=4666
+pa1hib1=-619
+pa1hib2=-163
+rxpo5g=0
+maxp2ga0=74
+maxp5ga0=66
+maxp5gla0=66
+maxp5gha0=66
+# 2.4G Tx Power offsets
+cck2gpo=0x2222
+ofdm2gpo=0x44444444
+mcs2gpo0=0x6666
+mcs2gpo1=0x6666
+# 5G Tx Power offsets
+ofdm5gpo=0x44444444
+ofdm5glpo=0x44444444
+ofdm5ghpo=0x44444444
+mcs5gpo0=0x6666
+mcs5gpo1=0x6666
+mcs5glpo0=0x6666
+mcs5glpo1=0x6666
+mcs5ghpo0=0x6666
+mcs5ghpo1=0x6666
+sromrev=3
+il0macaddr=00:90:4c:c5:12:38
+wl0id=0x431b
+cckPwrOffset=4
+swctrlmap_2g=0x44844484,0x42824282,0x40804484,0x18282,0x1ff
+triso5g=0
+swctrlmap_5g=0x00100010,0x20202020,0x20202020,0x14202,0x0f0
+rfreg033=0x19
+rfreg033_cck=0x1f
+dacrate2g=160
+dacrate5g=160
+txalpfbyp2g=1
+bphyscale=17
+cckPwrIdxCorr=-15
+pacalidx2g=50
+#pacalidx5g=20
+noise_cal_ref_2g=53
+noise_cal_po_2g=0
+noise_cal_ref_5g=52
+noise_cal_po_5g=5,0,0
+# 4330 OOB parameter: High level trigger
+muxenab=0x10
+

configs/amarula_a64_relic_defconfig

@@ -44,6 +44,19 @@ BR2_PACKAGE_HOST_ANDROID_TOOLS_FASTBOOT=y
 BR2_PACKAGE_HOST_DOSFSTOOLS=y
 BR2_PACKAGE_HOST_GENIMAGE=y
 BR2_PACKAGE_HOST_MTOOLS=y
+BR2_ROOTFS_DEVICE_CREATION_DYNAMIC_MDEV=y
 BR2_ROOTFS_POST_IMAGE_SCRIPT="support/scripts/genimage.sh"
 BR2_ROOTFS_POST_SCRIPT_ARGS="-c board/amarula/a64-relic/genimage.cfg"
 BR2_ROOTFS_POST_BUILD_SCRIPT="board/amarula/a64-relic/post-build.sh"
+BR2_ROOTFS_OVERLAY="board/amarula/a64-relic/rootfs_overlay"
+
+# wireless firmware
+BR2_PACKAGE_LINUX_FIRMWARE=y
+BR2_PACKAGE_LINUX_FIRMWARE_BRCM_BCM43XX=y
+
+# wireless tools
+BR2_PACKAGE_IW=y
+BR2_PACKAGE_WPA_SUPPLICANT=y
+BR2_PACKAGE_WPA_SUPPLICANT_NL80211=y
+BR2_PACKAGE_WPA_SUPPLICANT_AP_SUPPORT=y
+BR2_PACKAGE_WPA_SUPPLICANT_PASSPHRASE=y