mvebu: new subtarget cortex A53

This commit introduces new subtarget for Marvell EBU Armada Cortex A53
processor based devices.

The first device is Globalscale ESPRESSObin. Some hardware specs:

SoC: Marvell Armada 3700LP (88F3720) dual core ARM Cortex A53
     processor up to 1.2GHz
RAM: 512MB, 1GB or 2GB DDR3
Storage: SATA interface
         µSD card slot with footprint for an optional 4GB EMMC
         4MB SPI NOR flash for bootloader
Ethernet: Topaz Networking Switch (88E6341) with 3x GbE ports
Connectors: USB 3.0
            USB 2.0
            µUSB port connected to PL2303SA (USB to serial bridge
            controller) for UART access
Expansion: 2x 46-pin GPIO headers for accessories and shields with
           I2C, GPIOs, PWM, UART, SPI, MMC, etc
           MiniPCIe slot
Misc: Reset button, JTAG interface

Currently booting only from µSD card is supported.
The boards depending on date of dispatch can come with various U-Boot
versions. For the newest version 2017.03-armada-17.10 no manual
intervention should be needed to boot OpenWrt image. For the older ones
it's necessary to modify default U-Boot environment:

 1. Interrupt boot process to run U-Boot command line,

 2. Run following commands:
    (for version 2017.03-armada-17.06 and 2017.03-armada-17.08)
     setenv bootcmd "load mmc 0:1 0x4d00000 boot.scr; source 0x4d00000"
     saveenv

    (for version 2015.01-armada-17.02 and 2015.01-armada-17.04)
     setenv bootargs "console=ttyMV0,115200 root=/dev/mmcblk0p2 rw rootwait"
     setenv bootcmd "ext4load mmc 0:1 ${fdt_addr} armada-3720-espressobin.dtb; ext4load mmc 0:1 ${kernel_addr} Image; booti ${kernel_addr} - ${fdt_addr}"
     saveenv

 3. Poweroff, insert SD card with OpenWrt image, boot and enjoy.

Signed-off-by: Tomasz Maciej Nowak <tomek_n@o2.pl>

3 files changed, 8 insertions, 2 deletions

diff --git a/target/linux/mvebu/base-files/etc/board.d/02_network b/target/linux/mvebu/base-files/etc/board.d/02_network
index 36c4b23c5d..28cdc22b28 100755
--- a/target/linux/mvebu/base-files/etc/board.d/02_network
+++ b/target/linux/mvebu/base-files/etc/board.d/02_network
@@ -42,6 +42,9 @@ armada-388-clearfog-*)
 armada-xp-gp)
 	ucidef_set_interface_lan "eth0 eth1 eth2 eth3"
 	;;
+globalscale,espressobin)
+	ucidef_set_interfaces_lan_wan "lan0 lan1" "wan"
+	;;
 *)
 	ucidef_set_interface_lan "eth0"
 	;;
diff --git a/target/linux/mvebu/base-files/lib/mvebu.sh b/target/linux/mvebu/base-files/lib/mvebu.sh
index 1cd87507a3..707ceb18ef 100755
--- a/target/linux/mvebu/base-files/lib/mvebu.sh
+++ b/target/linux/mvebu/base-files/lib/mvebu.sh
@@ -17,6 +17,9 @@ mvebu_board_detect() {
 	*"Marvell Armada 370 Evaluation Board")
 		name="armada-370-db"
 		;;
+	*"Globalscale Marvell ESPRESSOBin Board")
+		name="globalscale,espressobin"
+		;;
 	*"Globalscale Mirabox")
 		name="mirabox"
 		;;
diff --git a/target/linux/mvebu/base-files/lib/upgrade/platform.sh b/target/linux/mvebu/base-files/lib/upgrade/platform.sh
index ef8065a44e..3915bfdb7c 100755
--- a/target/linux/mvebu/base-files/lib/upgrade/platform.sh
+++ b/target/linux/mvebu/base-files/lib/upgrade/platform.sh
@@ -16,7 +16,7 @@ platform_do_upgrade() {
 	armada-385-linksys-caiman|armada-385-linksys-cobra|armada-385-linksys-rango|armada-385-linksys-shelby|armada-xp-linksys-mamba)
 		platform_do_upgrade_linksys "$ARGV"
 		;;
-	armada-385-turris-omnia|armada-388-clearfog-base|armada-388-clearfog-pro)
+	armada-385-turris-omnia|armada-388-clearfog-base|armada-388-clearfog-pro|globalscale,espressobin)
 		platform_do_upgrade_sdcard "$ARGV"
 		;;
 	*)
@@ -29,7 +29,7 @@ platform_copy_config() {
 	armada-385-linksys-caiman|armada-385-linksys-cobra|armada-385-linksys-rango|armada-385-linksys-shelby|armada-xp-linksys-mamba)
 		platform_copy_config_linksys
 		;;
-	armada-385-turris-omnia|armada-388-clearfog-base|armada-388-clearfog-pro)
+	armada-385-turris-omnia|armada-388-clearfog-base|armada-388-clearfog-pro|globalscale,espressobin)
 		platform_copy_config_sdcard "$ARGV"
 		;;
 	esac