From 45b130e467849b659f3124eed6e5e93dd991e2f6 Mon Sep 17 00:00:00 2001 From: Lucas Stach Date: Wed, 13 Mar 2019 11:56:33 +0100 Subject: ARM: zii-common: fetch network config from SP On both RDU1 and RDU2 the seat notwork configuration is stored in a configuration EEPROM accessible via the RAVE SP. Add an initcall to fetch this configuration and add it to the kernel command line. Signed-off-by: Lucas Stach Signed-off-by: Sascha Hauer --- arch/arm/boards/zii-common/Makefile | 2 +- arch/arm/boards/zii-common/board.c | 44 +++++++++++++++++++++++++++++++++++++ 2 files changed, 45 insertions(+), 1 deletion(-) create mode 100644 arch/arm/boards/zii-common/board.c diff --git a/arch/arm/boards/zii-common/Makefile b/arch/arm/boards/zii-common/Makefile index 057f2a89c6..fcc5cdf97d 100644 --- a/arch/arm/boards/zii-common/Makefile +++ b/arch/arm/boards/zii-common/Makefile @@ -1 +1 @@ -obj-y += switch-cmd.o pn-fixup.o +obj-y += board.o switch-cmd.o pn-fixup.o diff --git a/arch/arm/boards/zii-common/board.c b/arch/arm/boards/zii-common/board.c new file mode 100644 index 0000000000..254b09a7a7 --- /dev/null +++ b/arch/arm/boards/zii-common/board.c @@ -0,0 +1,44 @@ +/* + * Copyright (C) 2019 Zodiac Inflight Innovation + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#include +#include +#include + +static int rdu_networkconfig(void) +{ + static char *rdu_netconfig; + struct device_d *sp_dev; + + if (!of_machine_is_compatible("zii,imx6q-zii-rdu2") && + !of_machine_is_compatible("zii,imx6qp-zii-rdu2") && + !of_machine_is_compatible("zii,imx51-rdu1")) + return 0; + + sp_dev = get_device_by_name("sp"); + if (!sp_dev) { + pr_warn("no sp device found, network config not available!\n"); + return -ENODEV; + } + + rdu_netconfig = basprintf("ip=%s:::%s::eth0:", + dev_get_param(sp_dev, "ipaddr"), + dev_get_param(sp_dev, "netmask")); + + globalvar_add_simple_string("linux.bootargs.rdu_network", + &rdu_netconfig); + + return 0; +} +late_initcall(rdu_networkconfig); -- cgit v1.2.3