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board: amlogic: Add Odroid-N2 board support 

Add a proper Odroid-N2 board support to handle the Ethernet MAC
address stored in the in-SoC eFuses.

Signed-off-by: Pascal Vizeli <pvizeli@syshack.ch>
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Tested-by: Anand Moon <linux.amoon@gmail.com>
This commit is contained in:
Pascal Vizeli 2020-06-18 16:40:37 +02:00 committed by Neil Armstrong
parent 2f5fbb5b39
commit 6de936b011
5 changed files with 63 additions and 3 deletions
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7
board/amlogic/odroid-n2/MAINTAINERS Normal file
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@ -0,0 +1,7 @@
ODROID-N2
M: Neil Armstrong <narmstrong@baylibre.com>
S: Maintained
L: u-boot-amlogic@groups.io
F: board/amlogic/odroid-n2/
F: configs/odroid-n2_defconfig
F: doc/board/amlogic/odroid-n2.rst

6
board/amlogic/odroid-n2/Makefile Normal file
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@ -0,0 +1,6 @@
# SPDX-License-Identifier: GPL-2.0+
#
# (C) Copyright 2020 BayLibre, SAS
# Author: Neil Armstrong <narmstrong@baylibre.com>
obj-y := odroid-n2.o

49
board/amlogic/odroid-n2/odroid-n2.c Normal file
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@ -0,0 +1,49 @@
// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2020 BayLibre, SAS
* Author: Neil Armstrong <narmstrong@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;
}

2
board/amlogic/w400/MAINTAINERS
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@ -5,8 +5,6 @@ L: u-boot-amlogic@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

2
configs/odroid-n2_defconfig
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@ -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