[PATCH] board: amlogic: Add Odroid-N2 board support

[Anand Moon]

Hi Neil,

On Thu, 18 Jun 2020 at 20:11, Neil Armstrong <narmstrong at baylibre.com> wrote:
>
> From: Pascal Vizeli <pvizeli at syshack.ch>
>
> Add a proper Odroid-N2 board support to handle the Ethernet MAC
> address stored in the in-SoC eFuses.
>

This feature need to be implemented for all Amlogic SoC boards,
since many boards link libretech-cc also generate random mac address
for ethernet.

Please add my: Tested on N2.
Tested-by: Anand Moon <linux.amoon at gmail.com>

-Anand

> Signed-off-by: Pascal Vizeli <pvizeli at syshack.ch>
> Signed-off-by: Neil Armstrong <narmstrong at baylibre.com>
> ---
>  board/amlogic/odroid-n2/MAINTAINERS |  7 +++++
>  board/amlogic/odroid-n2/Makefile    |  6 ++++
>  board/amlogic/odroid-n2/odroid-n2.c | 49 +++++++++++++++++++++++++++++
>  board/amlogic/w400/MAINTAINERS      |  2 --
>  configs/odroid-n2_defconfig         |  2 +-
>  5 files changed, 63 insertions(+), 3 deletions(-)
>  create mode 100644 board/amlogic/odroid-n2/MAINTAINERS
>  create mode 100644 board/amlogic/odroid-n2/Makefile
>  create mode 100644 board/amlogic/odroid-n2/odroid-n2.c
>
> diff --git a/board/amlogic/odroid-n2/MAINTAINERS b/board/amlogic/odroid-n2/MAINTAINERS
> new file mode 100644
> index 0000000000..5627e54058
> --- /dev/null
> +++ b/board/amlogic/odroid-n2/MAINTAINERS
> @@ -0,0 +1,7 @@
> +ODROID-N2
> +M:     Neil Armstrong <narmstrong at baylibre.com>
> +S:     Maintained
> +L:     u-boot-amlogic at groups.io
> +F:     board/amlogic/odroid-n2/
> +F:     configs/odroid-n2_defconfig
> +F:     doc/board/amlogic/odroid-n2.rst
> diff --git a/board/amlogic/odroid-n2/Makefile b/board/amlogic/odroid-n2/Makefile
> new file mode 100644
> index 0000000000..68e4e2a828
> --- /dev/null
> +++ b/board/amlogic/odroid-n2/Makefile
> @@ -0,0 +1,6 @@
> +# SPDX-License-Identifier: GPL-2.0+
> +#
> +# (C) Copyright 2020 BayLibre, SAS
> +# Author: Neil Armstrong <narmstrong at baylibre.com>
> +
> +obj-y  := odroid-n2.o
> diff --git a/board/amlogic/odroid-n2/odroid-n2.c b/board/amlogic/odroid-n2/odroid-n2.c
> new file mode 100644
> index 0000000000..caf7fd6810
> --- /dev/null
> +++ b/board/amlogic/odroid-n2/odroid-n2.c
> @@ -0,0 +1,49 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +/*
> + * Copyright (C) 2020 BayLibre, SAS
> + * Author: Neil Armstrong <narmstrong at baylibre.com>
> + */
> +
> +#include <common.h>
> +#include <dm.h>
> +#include <env.h>
> +#include <init.h>
> +#include <net.h>
> +#include <asm/io.h>
> +#include <asm/arch/sm.h>
> +#include <asm/arch/eth.h>
> +
> +#define EFUSE_MAC_OFFSET       20
> +#define EFUSE_MAC_SIZE         12
> +#define MAC_ADDR_LEN           6
> +
> +int misc_init_r(void)
> +{
> +       u8 mac_addr[MAC_ADDR_LEN];
> +       char efuse_mac_addr[EFUSE_MAC_SIZE], tmp[3];
> +       ssize_t len;
> +
> +       meson_eth_init(PHY_INTERFACE_MODE_RGMII, 0);
> +
> +       if (!eth_env_get_enetaddr("ethaddr", mac_addr)) {
> +               len = meson_sm_read_efuse(EFUSE_MAC_OFFSET,
> +                                         efuse_mac_addr, EFUSE_MAC_SIZE);
> +               if (len != EFUSE_MAC_SIZE)
> +                       return 0;
> +
> +               /* MAC is stored in ASCII format, 1bytes = 2characters */
> +               for (int i = 0; i < 6; i++) {
> +                       tmp[0] = efuse_mac_addr[i * 2];
> +                       tmp[1] = efuse_mac_addr[i * 2 + 1];
> +                       tmp[2] = '\0';
> +                       mac_addr[i] = simple_strtoul(tmp, NULL, 16);
> +               }
> +
> +               if (is_valid_ethaddr(mac_addr))
> +                       eth_env_set_enetaddr("ethaddr", mac_addr);
> +               else
> +                       meson_generate_serial_ethaddr();
> +       }
> +
> +       return 0;
> +}
> diff --git a/board/amlogic/w400/MAINTAINERS b/board/amlogic/w400/MAINTAINERS
> index 5e837cfaef..a1b0ac8636 100644
> --- a/board/amlogic/w400/MAINTAINERS
> +++ b/board/amlogic/w400/MAINTAINERS
> @@ -5,8 +5,6 @@ L:      u-boot-amlogic at groups.io
>  F:     board/amlogic/w400/
>  F:     configs/khadas-vim3_defconfig
>  F:     configs/khadas-vim3l_defconfig
> -F:     configs/odroid-n2_defconfig
>  F:     doc/board/amlogic/w400.rst
>  F:     doc/board/amlogic/khadas-vim3.rst
>  F:     doc/board/amlogic/khadas-vim3l.rst
> -F:     doc/board/amlogic/odroid-n2.rst
> diff --git a/configs/odroid-n2_defconfig b/configs/odroid-n2_defconfig
> index e0cc6e3729..063809416e 100644
> --- a/configs/odroid-n2_defconfig
> +++ b/configs/odroid-n2_defconfig
> @@ -1,5 +1,5 @@
>  CONFIG_ARM=y
> -CONFIG_SYS_BOARD="w400"
> +CONFIG_SYS_BOARD="odroid-n2"
>  CONFIG_ARCH_MESON=y
>  CONFIG_SYS_TEXT_BASE=0x01000000
>  CONFIG_ENV_SIZE=0x2000
> --
> 2.22.0
>