board: amarula: Add A64-Relic support

Add initial support for Amarula A64-Relic board
with below features:
- U-Boot 2018.07
- Linux 4.17.0-rc6
- Default packages from buildroot

---
Changes for v6
- Use 2018.07 u-boot
- Use release tag for linux
- Add command to select u-boot UMS on readme.txt
Changes for v5:
- Rebase to master
- Fix DEVELOPERS file for proper position of amarula_a64_relic_defconfig Changes for v4:
- remove sdcard.img image creation
- on readme 'cd output/images' not output/images
- add 'sudo' for fastboot commands on readme.txt
Changes for v3:
- Use 4.17 kernel headers
- Add wiki link
- Add BR2_PACKAGE_HOST_ANDROID_TOOLS_FASTBOOT
- Update comments on readme.txt suggested by Thomas
Changes for v2:
- Use mainline U-Boot
- Drop uboot.fragment since the UMS used for developement, so note it on readme.txt how to use.
- format the 'Write eMMC' steps suggested by Arnout.
- fix fastboot steps in readme.txt
- add offset in genimage.cfg for boot partition instead of size

 .gitlab-ci.yml                        |  1 +
 DEVELOPERS                            |  1 +
 board/amarula/a64-relic/extlinux.conf |  4 ++
 board/amarula/a64-relic/genimage.cfg  | 10 ++++
 board/amarula/a64-relic/post-build.sh |  4 ++
 board/amarula/a64-relic/readme.txt    | 81 +++++++++++++++++++++++++++
 configs/amarula_a64_relic_defconfig   | 47 ++++++++++++++++
 7 files changed, 148 insertions(+)
 create mode 100644 board/amarula/a64-relic/extlinux.conf
 create mode 100644 board/amarula/a64-relic/genimage.cfg
 create mode 100755 board/amarula/a64-relic/post-build.sh
 create mode 100644 board/amarula/a64-relic/readme.txt
 create mode 100644 configs/amarula_a64_relic_defconfig

index 8b9a1f175c..a5fbdcb0d8 100644
@@ -83,6 +83,7 @@ acmesystems_aria_g25_128mb_defconfig: *defconfig
 acmesystems_aria_g25_256mb_defconfig: *defconfig
 acmesystems_arietta_g25_128mb_defconfig: *defconfig
 acmesystems_arietta_g25_256mb_defconfig: *defconfig
+amarula_a64_relic_defconfig: *defconfig
 amarula_vyasa_rk3288_defconfig: *defconfig
 arcturus_ucls1012a_defconfig: *defconfig
 arcturus_ucp1020_defconfig: *defconfig

index a3d97eb390..b18875c7a2 100644
@@ -959,6 +959,7 @@ F:	board/orangepi/orangepi-prime/
 F:	board/orangepi/orangepi-win/
 F:	board/orangepi/orangepi-zero-plus2/
 F:	board/pine64/
+F:	configs/amarula_a64_relic_defconfig
 F:	configs/amarula_vyasa_rk3288_defconfig
 F:	configs/asus_tinker_rk3288_defconfig
 F:	configs/bananapi_m1_defconfig

new file mode 100644
index 0000000000..9f469846bc
@@ -0,0 +1,4 @@
+label linux-4.17.0-rc3
+  kernel /Image
+  devicetree /sun50i-a64-amarula-relic.dtb
+  append console=ttyS0,115200 earlyprintk root=/dev/mmcblk1p4 rootwait

new file mode 100644
index 0000000000..002b6bb4d1
@@ -0,0 +1,10 @@
+image boot.vfat {
+	vfat {
+		files = {
+			"Image",
+			"sun50i-a64-amarula-relic.dtb",
+			"extlinux"
+		}
+	}
+	size = 64M
+}

new file mode 100755
index 0000000000..ec20fca7d9
@@ -0,0 +1,4 @@
+#!/bin/sh
+BOARD_DIR="$(dirname $0)"
+
+install -m 0644 -D $BOARD_DIR/extlinux.conf $BINARIES_DIR/extlinux/extlinux.conf

2.18.0.321.gffc6fa0e3

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

---
Changes for v6, v5:
- rebase to master
Changes for v4, v3:
- none
Changes for v2:
- drop init scripts for module loading
- add mdev for module autoloading

 board/amarula/a64-relic/readme.txt            |  9 ++
 .../lib/firmware/brcm/brcmfmac4330-sdio.txt   | 83 +++++++++++++++++++
 configs/amarula_a64_relic_defconfig           | 13 +++
 3 files changed, 105 insertions(+)
 create mode 100644 board/amarula/a64-relic/rootfs_overlay/lib/firmware/brcm/brcmfmac4330-sdio.txt

index 8a3f1ae6bc..750311f8ae 100644
@@ -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 <[email protected]>
 29-Jun-2018

index 36a43eb232..697058580b 100644
@@ -42,6 +42,19 @@ 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

2.18.0.321.gffc6fa0e3

Hi Jagan,

I was about to apply, but U-Boot doesn't seem to build without swig:

PYMOD scripts/dtc/pylibfdt/_libfdt.so
unable to execute 'swig': No such file or directory
error: command 'swig' failed with exit status 1
make[5]: *** [scripts/dtc/pylibfdt/Makefile:27: scripts/dtc/pylibfdt/_libfdt.so] Error 1

I believe this has been discussed before but I can't find it.

Also (but not needed to fix before acceptance):

[snip]

Hello,

Yes, that's one of the way U-Boot can now be told how to boot. See
http://git.denx.de/?p=u-boot.git;a=blob;f=doc/README.distro;h=f8e9752a0fa4244ef0a6f7ee530b0aa218080cac;hb=HEAD.

Basically, the idea is that U-Boot simply looks at extlinux.conf in various well-defined locations in the root filesystem, and this allows the operating system installed to tell U-Boot how it should be booted.

Best regards,

Thomas

Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

Hello,

This can be fixed by enabling BR2_TARGET_UBOOT_NEEDS_PYLIBFDT.

Thomas

Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

Hi Arnout,

U-Boot supports extlinux.conf parsing since quite some time, under the so call "Distro Configuration". See doc/README.distro in the U-Boot source tree. We already have a few boards using this capability. See for example board/asus/tinker/.

baruch

--
http://baruch.siach.name/blog/ ~. .~ Tk Open Systems
=}------------------------------------------------ooO--U--Ooo------------{=
- baruch at tkos.co.il - tel: +972.52.368.4656, http://www.tkos.co.il -

Hello Jagan,

This patch was missing BR2_TARGET_UBOOT_NEEDS_PYLIBFDT and BR2_LINUX_KERNEL_NEEDS_HOST_OPENSSL for the build to succeed in a pristine build environment. I've fixed that, did a few minor tweaks (commit titles) and applied. Thanks!

Thomas

Thomas Petazzoni, CTO, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com

Thanks for the help.

Jagan.