From 584d7c53bd2d286a71fe5e8244624f59c529cb26 Mon Sep 17 00:00:00 2001 From: Tomasz Maciej Nowak Date: Wed, 7 Mar 2018 22:10:02 +0100 Subject: mvebu: new subtarget cortex A53 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 --- ...arvell-armada-37xx-add-nodes-allowing-cpu.patch | 48 ++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 target/linux/mvebu/patches-4.14/507-arm64-dts-marvell-armada-37xx-add-nodes-allowing-cpu.patch (limited to 'target/linux/mvebu/patches-4.14/507-arm64-dts-marvell-armada-37xx-add-nodes-allowing-cpu.patch') diff --git a/target/linux/mvebu/patches-4.14/507-arm64-dts-marvell-armada-37xx-add-nodes-allowing-cpu.patch b/target/linux/mvebu/patches-4.14/507-arm64-dts-marvell-armada-37xx-add-nodes-allowing-cpu.patch new file mode 100644 index 0000000000..dd3727c554 --- /dev/null +++ b/target/linux/mvebu/patches-4.14/507-arm64-dts-marvell-armada-37xx-add-nodes-allowing-cpu.patch @@ -0,0 +1,48 @@ +From e8d66e7927b2a15310df0eb44a67d120ea147a59 Mon Sep 17 00:00:00 2001 +From: Gregory CLEMENT +Date: Thu, 14 Dec 2017 16:00:06 +0100 +Subject: arm64: dts: marvell: armada-37xx: add nodes allowing cpufreq + support + +In order to be able to use cpu freq, we need to associate a clock to each +CPU and to expose the power management registers. + +Signed-off-by: Gregory CLEMENT +--- + arch/arm64/boot/dts/marvell/armada-372x.dtsi | 1 + + arch/arm64/boot/dts/marvell/armada-37xx.dtsi | 7 +++++++ + 2 files changed, 8 insertions(+) + +--- a/arch/arm64/boot/dts/marvell/armada-372x.dtsi ++++ b/arch/arm64/boot/dts/marvell/armada-372x.dtsi +@@ -56,6 +56,7 @@ + device_type = "cpu"; + compatible = "arm,cortex-a53","arm,armv8"; + reg = <0x1>; ++ clocks = <&nb_periph_clk 16>; + enable-method = "psci"; + }; + }; +--- a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi ++++ b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi +@@ -64,6 +64,7 @@ + device_type = "cpu"; + compatible = "arm,cortex-a53", "arm,armv8"; + reg = <0>; ++ clocks = <&nb_periph_clk 16>; + enable-method = "psci"; + }; + }; +@@ -219,6 +220,12 @@ + }; + }; + ++ nb_pm: syscon@14000 { ++ compatible = "marvell,armada-3700-nb-pm", ++ "syscon"; ++ reg = <0x14000 0x60>; ++ }; ++ + pinctrl_sb: pinctrl@18800 { + compatible = "marvell,armada3710-sb-pinctrl", + "syscon", "simple-mfd"; -- cgit v1.2.3