package/amlogic-boot-fip: new host package

This tool is needed by some SoCs to sign the bootloader.

See the list of supported SoCs:
https://github.com/LibreELEC/amlogic-boot-fip

The variable BR2_PACKAGE_HOST_AMLOGIC_BOOT_FIP_DEVICE is used to specify
for which device this package needs to be used.

This tool uses pre-compiled binaries in order to sign the bootloader.
These binaries are provided under a proprietary license that prohibits
any redistribution of the resulting images.

A similar tool was tried to be added in the past:
http://patchwork.ozlabs.org/project/buildroot/patch/1533545408-11248-2-git-send-email-narmstrong@baylibre.com/
This time however a license file is present which can be used by
make legal-info. Additionally, acs_tool.pyc was replaced by acs_tool.py
and is therefore not compiled anymore.

Signed-off-by: Sebastian Weyer <sebastian.weyer@smile.fr>
[Romain:
  add AMLOGIC_BOOT_FIP_REDISTRIBUTE = NO
  add qstrip for BR2_PACKAGE_HOST_AMLOGIC_BOOT_FIP_DEVICE
  remove build-fip-all.sh copy, not needed
  factorize file copy in HOST_AMLOGIC_BOOT_FIP_INSTALL_CMDS
  update commit log with the github url where we can find the list of supported SoCs.
]
Signed-off-by: Romain Naour <romain.naour@smile.fr>

DEVELOPERS

@@ -2644,6 +2644,7 @@ N:	Sam Voss <sam.voss@gmail.com>
 F:	package/ripgrep/
 
 N:	Sebastian Weyer <sebastian.weyer@smile.fr>
+F:      package/amlogic-boot-fip/
 F:	package/nushell/
 F:	support/testing/tests/package/sample_nu.nu
 F:	support/testing/tests/package/test_nu.py

package/Config.in.host

@@ -3,6 +3,7 @@ menu "Host utilities"
 	source "package/abootimg/Config.in.host"
 	source "package/aespipe/Config.in.host"
 	source "package/agent-proxy/Config.in.host"
+	source "package/amlogic-boot-fip/Config.in.host"
 	source "package/android-tools/Config.in.host"
 	source "package/asn1c/Config.in.host"
 	source "package/babeltrace2/Config.in.host"

package/amlogic-boot-fip/Config.in.host

@@ -0,0 +1,17 @@
+config BR2_PACKAGE_HOST_AMLOGIC_BOOT_FIP
+	bool "host amlogic-boot-fip"
+	depends on BR2_HOSTARCH = "x86_64"
+	help
+	  Firmware Image Pacakge (FIP) sources used to sign Amlogic
+	  u-boot binaries in LibreELEC images
+
+	  https://github.com/LibreELEC/amlogic-boot-fip
+
+config BR2_PACKAGE_HOST_AMLOGIC_BOOT_FIP_DEVICE
+	string "fip device"
+	default "khadas-vim3"
+	depends on BR2_PACKAGE_HOST_AMLOGIC_BOOT_FIP
+	help
+	  Device for which you want to use this package.
+	  See the list of supported SoCs:
+	  https://github.com/LibreELEC/amlogic-boot-fip

package/amlogic-boot-fip/amlogic-boot-fip.hash

@@ -0,0 +1,3 @@
+# Locally calculated
+sha256  2cc06bc7d5647fd8c0025181fa42c4a8ef0ed16b918a1fa2060ea83c22e47b20  amlogic-boot-fip-e96b6a694380ff07d5a9e4be644ffe254bd18512.tar.gz
+sha256  4255537f71b1cd0d487de0fa2b8eddf1eb96ed96d119507336dde8b3782b86e6  LICENSE

package/amlogic-boot-fip/amlogic-boot-fip.mk

@@ -0,0 +1,34 @@
+################################################################################
+#
+# amlogic-boot-fip
+#
+################################################################################
+
+AMLOGIC_BOOT_FIP_VERSION = e96b6a694380ff07d5a9e4be644ffe254bd18512
+AMLOGIC_BOOT_FIP_SITE = $(call github,LibreELEC,amlogic-boot-fip,$(AMLOGIC_BOOT_FIP_VERSION))
+AMLOGIC_BOOT_FIP_LICENSE = PROPRIETARY
+AMLOGIC_BOOT_FIP_LICENSE_FILES = LICENSE
+AMLOGIC_BOOT_FIP_REDISTRIBUTE = NO
+
+AMLOGIC_BOOT_FIP_INSTALL_DIR = $(BINARIES_DIR)/amlogic-boot-fip
+
+AMLOGIC_BOOT_FIP_DEVICE = $(call qstrip,$(BR2_PACKAGE_HOST_AMLOGIC_BOOT_FIP_DEVICE))
+
+AMLOGIC_BOOT_FIP_FILES_TO_INSTALL = build-fip.sh axg.inc g12a.inc gxbb.inc gxl.inc
+
+define HOST_AMLOGIC_BOOT_FIP_INSTALL_CMDS
+	mkdir -p $(AMLOGIC_BOOT_FIP_INSTALL_DIR)/$(AMLOGIC_BOOT_FIP_DEVICE)
+	$(foreach f,$(AMLOGIC_BOOT_FIP_FILES_TO_INSTALL),\
+		$(INSTALL) -D -m 0755 $(@D)/$(f) $(AMLOGIC_BOOT_FIP_INSTALL_DIR)/$(f)
+	)
+	cp -rf $(@D)/$(AMLOGIC_BOOT_FIP_DEVICE) $(AMLOGIC_BOOT_FIP_INSTALL_DIR)
+endef
+
+# check for empty device string when we're building
+ifeq ($(BR2_PACKAGE_HOST_AMLOGIC_BOOT_FIP)$(BR_BUILDING),yy)
+ifeq ($(call qstrip,$(BR2_PACKAGE_HOST_AMLOGIC_BOOT_FIP_DEVICE)),)
+$(error No device specified for amlogic-boot-fip, please check your BR2_PACKAGE_HOST_AMLOGIC_BOOT_FIP_DEVICE setting)
+endif
+endif
+
+$(eval $(host-generic-package))