30 lines
662 B
C
30 lines
662 B
C
|
// SPDX-License-Identifier: GPL-2.0+
|
||
|
|
/*
|
||
|
|
* System information routines for all OMAP based boards.
|
||
|
|
*
|
||
|
|
* (C) Copyright 2017 Linaro Ltd.
|
||
|
|
* Sam Protsenko <semen.protsenko@linaro.org>
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <asm/arch/omap.h>
|
||
|
|
#include <asm/io.h>
|
||
|
|
#include <asm/omap_common.h>
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Tell if device is GP/HS/EMU/TST.
|
||
|
|
*/
|
||
|
|
u32 get_device_type(void)
|
||
|
|
{
|
||
|
|
#if defined(CONFIG_OMAP34XX)
|
||
|
|
/*
|
||
|
|
* On OMAP3 systems we call this early enough that we must just
|
||
|
|
* use the direct offset for safety.
|
||
|
|
*/
|
||
|
|
return (readl(OMAP34XX_CTRL_BASE + 0x2f0) & DEVICE_TYPE_MASK) >>
|
||
|
|
DEVICE_TYPE_SHIFT;
|
||
|
|
#else
|
||
|
|
return (readl((*ctrl)->control_status) & DEVICE_TYPE_MASK) >>
|
||
|
|
DEVICE_TYPE_SHIFT;
|
||
|
|
#endif
|
||
|
|
}
|