u-boot: Restore valid default environment for running system

One significant change from previous OE-Core releases was the move from
u-boot-fw-utils to libubootenv which offers a generic and not machine
specific alternative. However, it is not fully functional as currently
we don't provide the default environment nor the required configuration
file to be used by it.

This change address this and include on the default u-boot.inc the
needed code to generate, install and deploy the default environment.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 53 insertions, 9 deletions

diff --git a/meta/recipes-bsp/u-boot/u-boot.inc b/meta/recipes-bsp/u-boot/u-boot.inc
index 648298da0b..188e5295cf 100644
--- a/meta/recipes-bsp/u-boot/u-boot.inc
+++ b/meta/recipes-bsp/u-boot/u-boot.inc
@@ -122,6 +122,11 @@ do_compile () {
                             cp ${B}/${config}/${binary} ${B}/${config}/u-boot-${type}.${UBOOT_SUFFIX}
                         fi
                     done
+
+                    # Generate the uboot-initial-env
+                    oe_runmake -C ${S} O=${B}/${config} u-boot-initial-env
+                    cp ${B}/${config}/u-boot-initial-env ${B}/${config}/u-boot-initial-env-${type}
+
                     unset k
                 fi
             done
@@ -130,6 +135,9 @@ do_compile () {
         unset  i
     else
         oe_runmake -C ${S} O=${B} ${UBOOT_MAKE_TARGET}
+
+        # Generate the uboot-initial-env
+        oe_runmake -C ${S} O=${B} u-boot-initial-env
     fi
 
 }
@@ -143,19 +151,28 @@ do_install () {
                 j=$(expr $j + 1);
                 if [ $j -eq $i ]
                 then
-                    install -d ${D}/boot
-                    install -m 644 ${B}/${config}/u-boot-${type}.${UBOOT_SUFFIX} ${D}/boot/u-boot-${type}-${PV}-${PR}.${UBOOT_SUFFIX}
+                    install -D -m 644 ${B}/${config}/u-boot-${type}.${UBOOT_SUFFIX} ${D}/boot/u-boot-${type}-${PV}-${PR}.${UBOOT_SUFFIX}
                     ln -sf u-boot-${type}-${PV}-${PR}.${UBOOT_SUFFIX} ${D}/boot/${UBOOT_BINARY}-${type}
                     ln -sf u-boot-${type}-${PV}-${PR}.${UBOOT_SUFFIX} ${D}/boot/${UBOOT_BINARY}
+
+                    # Install the uboot-initial-env
+                    install -D -m 644 ${B}/${config}/u-boot-initial-env-${type} ${D}/${sysconfdir}/u-boot-initial-env-${MACHINE}-${type}-${PV}-${PR}
+                    ln -sf u-boot-initial-env-${MACHINE}-${type}-${PV}-${PR} ${D}/${sysconfdir}/u-boot-initial-env-${MACHINE}-${type}
+                    ln -sf u-boot-initial-env-${MACHINE}-${type}-${PV}-${PR} ${D}/${sysconfdir}/u-boot-initial-env-${type}
+                    ln -sf u-boot-initial-env-${MACHINE}-${type}-${PV}-${PR} ${D}/${sysconfdir}/u-boot-initial-env
                 fi
             done
             unset  j
         done
         unset  i
     else
-        install -d ${D}/boot
-        install -m 644 ${B}/${UBOOT_BINARY} ${D}/boot/${UBOOT_IMAGE}
+        install -D -m 644 ${B}/${UBOOT_BINARY} ${D}/boot/${UBOOT_IMAGE}
         ln -sf ${UBOOT_IMAGE} ${D}/boot/${UBOOT_BINARY}
+
+        # Install the uboot-initial-env
+        install -D -m 644 ${B}/u-boot-initial-env ${D}/${sysconfdir}/u-boot-initial-env-${MACHINE}-${PV}-${PR}
+        ln -sf u-boot-initial-env-${MACHINE}-${PV}-${PR} ${D}/${sysconfdir}/u-boot-initial-env-${MACHINE}
+        ln -sf u-boot-initial-env-${MACHINE}-${PV}-${PR} ${D}/${sysconfdir}/u-boot-initial-env
     fi
 
     if [ -n "${UBOOT_ELF}" ]
@@ -224,7 +241,16 @@ do_install () {
 
 }
 
-FILES_${PN} = "/boot ${sysconfdir} ${datadir}"
+PACKAGE_BEFORE_PN += "${PN}-env"
+
+RPROVIDES_${PN}-env += "u-boot-default-env"
+FILES_${PN}-env = " \
+    ${sysconfdir}/u-boot-initial-env* \
+    ${sysconfdir}/fw_env.config \
+"
+
+FILES_${PN} = "/boot ${datadir}"
+RDEPENDS_${PN} += "${PN}-env"
 
 do_deploy () {
     if [ -n "${UBOOT_CONFIG}" ]
@@ -235,25 +261,43 @@ do_deploy () {
                 j=$(expr $j + 1);
                 if [ $j -eq $i ]
                 then
-                    install -d ${DEPLOYDIR}
-                    install -m 644 ${B}/${config}/u-boot-${type}.${UBOOT_SUFFIX} ${DEPLOYDIR}/u-boot-${type}-${PV}-${PR}.${UBOOT_SUFFIX}
+                    install -D -m 644 ${B}/${config}/u-boot-${type}.${UBOOT_SUFFIX} ${DEPLOYDIR}/u-boot-${type}-${PV}-${PR}.${UBOOT_SUFFIX}
                     cd ${DEPLOYDIR}
                     ln -sf u-boot-${type}-${PV}-${PR}.${UBOOT_SUFFIX} ${UBOOT_SYMLINK}-${type}
                     ln -sf u-boot-${type}-${PV}-${PR}.${UBOOT_SUFFIX} ${UBOOT_SYMLINK}
                     ln -sf u-boot-${type}-${PV}-${PR}.${UBOOT_SUFFIX} ${UBOOT_BINARY}-${type}
                     ln -sf u-boot-${type}-${PV}-${PR}.${UBOOT_SUFFIX} ${UBOOT_BINARY}
+
+                    # Deploy the uboot-initial-env
+                    install -D -m 644 ${B}/${config}/u-boot-initial-env-${type} ${DEPLOYDIR}/u-boot-initial-env-${MACHINE}-${type}-${PV}-${PR}
+                    cd ${DEPLOYDIR}
+                    ln -sf u-boot-initial-env-${MACHINE}-${type}-${PV}-${PR} u-boot-initial-env-${MACHINE}-${type}
+                    ln -sf u-boot-initial-env-${MACHINE}-${type}-${PV}-${PR} u-boot-initial-env-${type}
                 fi
             done
             unset  j
         done
         unset  i
     else
-        install -d ${DEPLOYDIR}
-        install -m 644 ${B}/${UBOOT_BINARY} ${DEPLOYDIR}/${UBOOT_IMAGE}
+        install -D -m 644 ${B}/${UBOOT_BINARY} ${DEPLOYDIR}/${UBOOT_IMAGE}
+
         cd ${DEPLOYDIR}
         rm -f ${UBOOT_BINARY} ${UBOOT_SYMLINK}
         ln -sf ${UBOOT_IMAGE} ${UBOOT_SYMLINK}
         ln -sf ${UBOOT_IMAGE} ${UBOOT_BINARY}
+
+        # Deploy the uboot-initial-env
+        install -D -m 644 ${B}/u-boot-initial-env ${DEPLOYDIR}/u-boot-initial-env-${MACHINE}-${PV}-${PR}
+        cd ${DEPLOYDIR}
+        ln -sf u-boot-initial-env-${MACHINE}-${PV}-${PR} u-boot-initial-env-${MACHINE}
+        ln -sf u-boot-initial-env-${MACHINE}-${PV}-${PR} u-boot-initial-env
+    fi
+
+    if [ -e ${WORKDIR}/fw_env.config ] ; then
+        install -D -m 644 ${WORKDIR}/fw_env.config ${DEPLOYDIR}/fw_env.config-${MACHINE}-${PV}-${PR}
+        cd ${DEPLOYDIR}
+        ln -sf fw_env.config-${MACHINE}-${PV}-${PR} fw_env.config-${MACHINE}
+        ln -sf fw_env.config-${MACHINE}-${PV}-${PR} fw_env.config
     fi
 
     if [ -n "${UBOOT_ELF}" ]