/* * Copyright (C) 2015 Pengutronix, Uwe Kleine-König <kernel@pengutronix.de> * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * version 2, as published by the Free Software Foundation. * * 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 <common.h> #include <asm/barebox-arm.h> #include <asm/barebox-arm-head.h> #include <asm/io.h> #include <mach/lowlevel.h> extern char __dtb_armada_xp_rn2120_bb_start[]; ENTRY_FUNCTION(start_netgear_rn2120, r0, r1, r2) { void *fdt; arm_cpu_lowlevel_init(); /* * This is necessary to allow the machine to draw more power. Probably * connected to a TI TPS65251. Without this resetting a phy makes the * SoC reset. * This is effectively gpio_direction_output(42, 1); */ writel((1 << 10) | readl((void *)0xd0018140), (void *)0xd0018140); writel(~(1 << 10) & readl((void *)0xd0018144), (void *)0xd0018144); fdt = __dtb_armada_xp_rn2120_bb_start - get_runtime_offset(); mvebu_barebox_entry(fdt); }