On Thu, Mar 06, 2014 at 01:11:08PM +0100, Gregory CLEMENT wrote:
> The Armada 385 RD board is the reference design board from Marvell
> for the Armada 385 SoC. This commit adds a Device Tree description for
> this board, which enables the following features:
>
> * Network interfaces
> * I2C bus
> * Serial port
> * SPI bus, with a SPI flash
> * PCIe interface
>
> Signed-off-by: Gregory CLEMENT <gregory.clement@xxxxxxxxxxxxxxxxxx>
> ---
> Hi,
>
> I have received this board only recently, so that why its device tree
> comes only now. This patch should not cause any trouble to other part
> of the kernel, so that's why I think it is reasonable to have it in
> 3.15.
>
> Thanks,
>
> Gregory
>
>
> arch/arm/boot/dts/Makefile | 3 +-
> arch/arm/boot/dts/armada-385-rd.dts | 104 ++++++++++++++++++++++++++++++++++++
> 2 files changed, 106 insertions(+), 1 deletion(-)
> create mode 100644 arch/arm/boot/dts/armada-385-rd.dts
>
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index f7d678808122..9155cf48e1b1 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -153,7 +153,8 @@ dtb-$(CONFIG_MACH_ARMADA_370) += \
> dtb-$(CONFIG_MACH_ARMADA_375) += \
> armada-375-db.dtb
> dtb-$(CONFIG_MACH_ARMADA_38X) += \
> - armada-385-db.dtb
> + armada-385-db.dtb \
> + armada-385-rd.dtb
> dtb-$(CONFIG_MACH_ARMADA_XP) += \
> armada-xp-axpwifiap.dtb \
> armada-xp-db.dtb \
> diff --git a/arch/arm/boot/dts/armada-385-rd.dts b/arch/arm/boot/dts/armada-385-rd.dts
> new file mode 100644
> index 000000000000..951bd91059e1
> --- /dev/null
> +++ b/arch/arm/boot/dts/armada-385-rd.dts
> @@ -0,0 +1,104 @@
> +/*
> + * Device Tree file for Marvell Armada 385 Reference Design board
> + * (RD-88F6820-AP)
> + *
> + * Copyright (C) 2014 Marvell
> + *
> + * Gregory CLEMENT <gregory.clement@xxxxxxxxxxxxxxxxxx>
> + * Thomas Petazzoni <thomas.petazzoni@xxxxxxxxxxxxxxxxxx>
> + *
> + * This file is licensed under the terms of the GNU General Public
> + * License version 2. This program is licensed "as is" without any
> + * warranty of any kind, whether express or implied.
> + */
> +
> +/dts-v1/;
> +#include "armada-385.dtsi"
> +
> +/ {
> + model = "Marvell Armada 385 Reference Design";
> + compatible = "marvell,a385-rd", "marvell,armada385", "marvell,armada38x";
> +
> + chosen {
> + bootargs = "console=ttyS0,115200 earlyprintk";
> + };
> +
> + memory {
> + device_type = "memory";
> + reg = <0x00000000 0x10000000>; /* 256 MB */
> + };
> +
> + soc {
> + ranges = <MBUS_ID(0xf0, 0x01) 0 0xf1000000 0x100000
> + MBUS_ID(0x01, 0x1d) 0 0xfff00000 0x100000>;
> +
> + internal-regs {
> + spi@10600 {
> + status = "okay";
> +
> + spi-flash@0 {
> + #address-cells = <1>;
> + #size-cells = <1>;
> + compatible = "m25p128";
Hi Gregory
I guess checkpatch.pl is probably complaining about missing vendor
prefix?
> + reg = <0>; /* Chip select 0 */
> + spi-max-frequency = <108000000>;
> + };
> + };
> +
> + i2c@11000 {
> + status = "okay";
> + clock-frequency = <100000>;
> + };
> +
> + serial@12000 {
> + clock-frequency = <200000000>;
> + status = "okay";
> + };
> +
> +
> + /*
> + * The Ethernet nodes are not ordered by
> + * address on purpose. Indeed the first
> + * Ethernet port of the board (Giga0) is
> + * located at 0x70000 whereas the the second
> + * Ethernet(Giga 1) port is located at
> + * 0x30000.
> + */
> +
> + ethernet@70000 {
> + status = "okay";
> + phy = <&phy0>;
> + phy-mode = "rgmii";
> + };
> +
> + ethernet@30000 {
> + status = "okay";
> + phy = <&phy1>;
> + phy-mode = "rgmii";
> + };
> +
I think you can use aliases to get the order correct, independent of
how you list them in DT. That should be a lot safer than assuming
things are instantiated from top to bottom.
Andrew
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