raspberrypi-firmware: Resort to github APIs for tarballs

The firmware repo is huge ( 36G ) to clone is onerous
using shallow clone tarballs require them to be pre-populated
at some mirror which we don't have. Third option is to let
github provide the tarball, there is concern that tarballs
might change the compression etc and thus checksum would change
that is something github would communicate to users in advance [1]

Therefore this is the best solution for us right now.

Also upgrade to latest while here and drop PR settings

[1] https://docs.github.com/en/repositories/working-with-files/using-files/downloading-source-code-archives#stability-of-source-code-archives

Signed-off-by: Khem Raj <[email protected]>

recipes-bsp/bootfiles/rpi-bootfiles.bb

@@ -15,8 +15,6 @@ COMPATIBLE_MACHINE = "^rpi$"
 
 S = "${RPIFW_S}/boot"
 
-PR = "r3"
-
 do_deploy() {
     install -d ${DEPLOYDIR}/${BOOTFILES_DIR_NAME}
 
@@ -40,4 +38,3 @@ addtask deploy before do_build after do_install
 do_deploy[dirs] += "${DEPLOYDIR}/${BOOTFILES_DIR_NAME}"
 
 PACKAGE_ARCH = "${MACHINE_ARCH}"
-

recipes-bsp/common/raspberrypi-firmware.inc

@@ -1,12 +1,10 @@
-RPIFW_DATE ?= "20240312"
-SRCREV = "5689dd184872b809af91d6636a832b1484d90fef"
-RPIFW_SRC_URI ?= "git://github.com/raspberrypi/firmware;protocol=https;branch=master"
-RPIFW_S ?= "${WORKDIR}/git"
+RPIFW_DATE ?= "20240319"
+SRCREV = "9f24f4bc2bdd07ffd158cfbb4bce88a2efc4c1f5"
+SHORTREV = "${@d.getVar("SRCREV", False).__str__()[:7]}"
+RPIFW_SRC_URI ?= "https://api.github.com/repos/raspberrypi/firmware/tarball/9f24f4bc2bdd07ffd158cfbb4bce88a2efc4c1f5;downloadfilename=raspberrypi-firmware-${SHORTREV}.tar.gz"
+RPIFW_S ?= "${WORKDIR}/raspberrypi-firmware-${SHORTREV}"
 
 SRC_URI = "${RPIFW_SRC_URI}"
+SRC_URI[sha256sum] = "4b436f8946b139c6a1202375ef55d4848e3bcd8c1a9cb47000e06d7ecec828f7"
 
 PV = "${RPIFW_DATE}"
-
-# Firmware repo is huge due to its content nature being binary blobs
-# use shallow clone to reduce amount of git metadata being pulled down
-BB_GIT_SHALLOW = "1"