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barebox / arch / arm / boards / advantech-mx6 / lowlevel.c
@Christoph Fritz Christoph Fritz on 12 Apr 2018 1 KB ARM: Add Advantech imx6 board support
/*
 * Copyright (C) 2018 Christoph Fritz <chf.fritz@googlemail.com>
 *
 * 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 <debug_ll.h>
#include <common.h>
#include <asm/barebox-arm-head.h>
#include <asm/barebox-arm.h>
#include <image-metadata.h>
#include <mach/generic.h>
#include <mach/esdctl.h>
#include <mach/iomux-mx6.h>
#include <linux/sizes.h>

#include <linux/sizes.h>
#include <asm/barebox-arm-head.h>
#include <asm/barebox-arm.h>
static inline void setup_uart(void)
{
	void __iomem *iomuxbase = (void *)MX6_IOMUXC_BASE_ADDR;

	imx6_ungate_all_peripherals();

	imx_setup_pad(iomuxbase, MX6Q_PAD_CSI0_DAT10__UART1_TXD);

	imx6_uart_setup_ll();

	putc_ll('>');
}

extern char __dtb_imx6dl_advantech_rom_7421_start[];

ENTRY_FUNCTION(start_advantech_imx6dl_rom_7421, r0, r1, r2)
{
	imx6_cpu_lowlevel_init();

	relocate_to_current_adr();
	setup_c();
	barrier();

	if (IS_ENABLED(CONFIG_DEBUG_LL))
		setup_uart();

	imx6q_barebox_entry(__dtb_imx6dl_advantech_rom_7421_start);
}