Rpi3 support

build.sh

@@ -545,14 +545,23 @@ cp installer-rpi1.cpio.gz bootfs/
 echo "[pi1]" >> bootfs/config.txt
 echo "kernel=kernel-rpi1_install.img" >> bootfs/config.txt
 echo "initramfs installer-rpi1.cpio.gz" >> bootfs/config.txt
-echo "device_tree=" >> bootfs/config.txt
+#echo "device_tree=" >> bootfs/config.txt
 
 create_cpio "rpi2"
 cp installer-rpi2.cpio.gz bootfs/
 echo "[pi2]" >> bootfs/config.txt
 echo "kernel=kernel-rpi2_install.img" >> bootfs/config.txt
 echo "initramfs installer-rpi2.cpio.gz" >> bootfs/config.txt
 
+# rpi3 uses the same kernel/initramfs as rpi2, so just copy the block
+echo "[pi3]" >> bootfs/config.txt
+echo "kernel=kernel-rpi2_install.img" >> bootfs/config.txt
+echo "initramfs installer-rpi2.cpio.gz" >> bootfs/config.txt
+# on the rpi3 the uart port is used by bluetooth by default
+# but during the installation we want the serial console
+# the next statement does that, but consequently also disables bluetooth
+echo "enable_uart=1" >> bootfs/config.txt
+
 # clean up
 rm -rf tmp
 

scripts/etc/init.d/rcS

@@ -173,11 +173,28 @@ tee < ${LOGFILE}.pipe $LOGFILE &
 exec &> ${LOGFILE}.pipe
 rm ${LOGFILE}.pipe
 
-rpi_hardware=$(grep Hardware /proc/cpuinfo | cut -d " " -f 2)
-case $rpi_hardware in
-    BCM2708) rpi_hardware_version="1" ;;
-    BCM2709) rpi_hardware_version="2" ;;
-    *) rpi_hardware_version="unknown" ;;
+# we should do this with bitshift operations, I think on the serial
+# http://elinux.org/RPi_HardwareHistory#Board_Revision_History
+cpu_revision=$(grep Revision /proc/cpuinfo | cut -d " " -f 2 | sed 's/^1000//')
+case $cpu_revision in
+    0011|0014)
+        rpi_hardware_version="cm"
+        ;;
+    900092|900093)
+        rpi_hardware_version="0"
+        ;;
+    0002|0003|0004|0005|0006|0007|0008|0009|000d|000e|000f|0010|0012|0013|0015)
+        rpi_hardware_version="1"
+        ;;
+    a01041|a21041)
+        rpi_hardware_version="2"
+        ;;
+    a02082|a22082)
+        rpi_hardware_version="3"
+        ;;
+    *)
+        rpi_hardware_version="unknown"
+        ;;
 esac
 
 echo ""
@@ -373,15 +390,16 @@ if [ "$hardware_versions" = "detect" ]; then
     case $rpi_hardware_version in
         1) hardware_versions="1" ;;
         2) hardware_versions="2" ;;
+        3) hardware_versions="3" ;;
         *)
            echo ""
            echo "================================================="
            echo "     No Raspberry Pi hardware detected!!"
-           echo " Value of rpi_hardware variable: '${rpi_hardware}'"
-           echo "          Building for both Pi and Pi 2.         "
+           echo " Value of cpu_revision variable: '${cpu_revision}'"
+           echo "          Building for Pi 1, 2 and 3.         "
            echo "================================================="
            echo ""
-           hardware_versions="1 2"
+           hardware_versions="1 2 3"
            ;;
     esac
 fi
@@ -447,7 +465,7 @@ if [ "$cdebootstrap_cmdline" = "" ]; then
     do
         case $hv in
             1) kernel_meta_package=linux-image-rpi-rpfv ;;
-            2) kernel_meta_package=linux-image-rpi2-rpfv ;;
+            2|3) kernel_meta_package=linux-image-rpi2-rpfv ;;
             *)
                 echo ""
                 echo "================================================="
@@ -1076,14 +1094,21 @@ do
             echo "kernel=vmlinuz-$KERNEL_VERSION"
             echo "initramfs initrd.img-${KERNEL_VERSION} followkernel"
             if [ "${hv}" = "1" ] ; then
-                echo "# to enable DeviceTree, comment out the next line "
-                echo "device_tree="
+                echo "# to disable DeviceTree, uncomment the next line "
+                echo "#device_tree="
+            fi
+            if [ "${hv}" = "3" ] ; then
+                # we should probably add a config parameter for uart purpose
+                # as the statements below disables bluetooth which various/most
+                # people will prefer over the serial console
+                echo "# enable the serial console for the installed system"
+                echo "#device_tree="
             fi
         } >> /rootfs/boot/config.txt
 
         # set the default kernel file based on the hardware
         case ${hv} in
-            2) default_kernel_file="kernel7.img" ;;
+            2|3) default_kernel_file="kernel7.img" ;;
             *) default_kernel_file="kernel.img" ;;
         esac