[U-Boot] [PATCH] nios2: add 10m50 devboard support

[Marek Vasut <marex@denx.de>]

On Monday, October 26, 2015 at 01:15:19 AM, Thomas Chou wrote:
> Add 10m50 devboard support. It is based on the Golden Hardware
> Reference Design (GHRD), available at,
> 
> http://rocketboards.org/foswiki/view/Documentation/
> AlteraMAX1010M50RevCDevelopmentKitLinuxSetup
> 
> Though we supported only one nios2-generic board in the past. Now,
> with the removal of the nios2-generic board dir, adding new nios2
> boards to u-boot is easier than before. It should be helpful to
> add those boards supported in Linux mainline. There are only two
> such nios2 boards, the 3c120 devboard and 10m50 devboard. The
> nios2-generic is actually 3c120, and should restore the name. The
> 10m50 is this one.
> 
> Signed-off-by: Thomas Chou <thomas@wytron.com.tw>
> ---
>  arch/nios2/dts/10m50_devboard.dts | 259
> ++++++++++++++++++++++++++++++++++++++ configs/10m50_defconfig           |
>  23 ++++
>  include/configs/10m50_devboard.h  |  98 +++++++++++++++
>  3 files changed, 380 insertions(+)
>  create mode 100644 arch/nios2/dts/10m50_devboard.dts
>  create mode 100644 configs/10m50_defconfig
>  create mode 100644 include/configs/10m50_devboard.h

Indeed, this patch is an excellent example of adding a new nios2 board.

Just a few nitpicks below.

[...]

> diff --git a/configs/10m50_defconfig b/configs/10m50_defconfig
> new file mode 100644
> index 0000000..fa5ffd7
> --- /dev/null
> +++ b/configs/10m50_defconfig
> @@ -0,0 +1,23 @@
> +CONFIG_NIOS2=y
> +CONFIG_SYS_CONFIG_NAME="10m50_devboard"
> +CONFIG_DM_SERIAL=y
> +CONFIG_DM_GPIO=y
> +CONFIG_DEFAULT_DEVICE_TREE="10m50_devboard"
> +CONFIG_HUSH_PARSER=y
> +CONFIG_CMD_CPU=y
> +# CONFIG_CMD_BOOTD is not set
> +# CONFIG_CMD_IMLS is not set
> +# CONFIG_CMD_XIMG is not set
> +# CONFIG_CMD_FPGA is not set
> +# CONFIG_CMD_ITEST is not set
> +# CONFIG_CMD_SETEXPR is not set

Please keep setexpr, it's really useful.

> +CONFIG_CMD_DHCP=y
> +# CONFIG_CMD_NFS is not set
> +CONFIG_CMD_PING=y
> +CONFIG_NET_RANDOM_ETHADDR=y
> +CONFIG_ALTERA_PIO=y
> +CONFIG_MISC=y
> +CONFIG_ALTERA_SYSID=y
> +CONFIG_ALTERA_UART=y
> +CONFIG_TIMER=y
> +CONFIG_ALTERA_TIMER=y
> diff --git a/include/configs/10m50_devboard.h
> b/include/configs/10m50_devboard.h new file mode 100644
> index 0000000..4140f2d
> --- /dev/null
> +++ b/include/configs/10m50_devboard.h
> @@ -0,0 +1,98 @@
> +/*
> + * (C) Copyright 2005, Psyent Corporation <www.psyent.com>
> + * Scott McNutt <smcnutt@psyent.com>
> + * (C) Copyright 2010, Thomas Chou <thomas@wytron.com.tw>
> + *
> + * SPDX-License-Identifier:	GPL-2.0+
> + */
> +
> +#ifndef __CONFIG_H
> +#define __CONFIG_H
> +
> +/*
> + * BOARD/CPU
> + */
> +#define CONFIG_DISPLAY_CPUINFO
> +#define CONFIG_DISPLAY_BOARDINFO_LATE
> +
> +/*
> + * SERIAL
> + */
> +#define CONFIG_BAUDRATE			115200
> +#define CONFIG_SYS_CONSOLE_INFO_QUIET	/* Suppress console info */
> +
> +/*
> + * CFI Flash
> + */
> +#define CONFIG_SYS_NO_FLASH
> +
> +/*
> + * MII/PHY
> + */
> +#define CONFIG_CMD_MII			1
> +#define CONFIG_PHY_GIGE			1
> +#define CONFIG_SYS_FAULT_ECHO_LINK_DOWN	1
> +#define CONFIG_PHY_MARVELL		1

Are you sure all these macros must have a value (1) ? I doubt it.

[...]