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/*
* (C) Copyright 2010 Juergen Beisert - Pengutronix
*
* 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 <common.h>
#include <command.h>
#include <complete.h>
#include <init.h>
#include <io.h>
#include <mach/imx-regs.h>
#define HW_RTC_PERSISTENT1 0x070
static int imx_reset_usb_bootstrap(void)
{
/*
* Clear USB boot mode.
*
* When the i.MX28 boots from USB, the ROM code sets this bit. When
* after a reset the ROM code detects that this bit is set it will
* boot from USB again. This means that if we boot once from USB the
* chip will continue to boot from USB until the next power cycle.
*
* To prevent this (and boot from the configured bootsource instead)
* clear this bit here.
*/
writel(0x2, IMX_WDT_BASE + HW_RTC_PERSISTENT1 + BIT_CLR);
return 0;
}
device_initcall(imx_reset_usb_bootstrap);
extern void imx_dump_clocks(void);
static int do_clocks(int argc, char *argv[])
{
imx_dump_clocks();
return 0;
}
BAREBOX_CMD_START(dump_clocks)
.cmd = do_clocks,
.usage = "show clock frequencies",
BAREBOX_CMD_COMPLETE(empty_complete)
BAREBOX_CMD_END
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