50 lines
1.9 KiB
C
50 lines
1.9 KiB
C
/*
|
|
* This file is part of the libopencm3 project.
|
|
*
|
|
* Copyright (C) 2012 chrysn <chrysn@fsfe.org>
|
|
*
|
|
* This library is free software: you can redistribute it and/or modify
|
|
* it under the terms of the GNU Lesser General Public License as published by
|
|
* the Free Software Foundation, either version 3 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This library 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 Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public License
|
|
* along with this library. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
/* FIXME: proper documentation, see where this fits, if we need this at all
|
|
* etc. this was just a first attempt at implementing something easy with
|
|
* MMIO32. */
|
|
|
|
/* this implements d0034_efm32tg_reference_manual.pdf's 7.3.4 "Device Revision"
|
|
* section */
|
|
|
|
#ifndef LIBOPENCM3_EFM32_TINYGECKO_DEVICEREVISION_H
|
|
#define LIBOPENCM3_EFM32_TINYGECKO_DEVICEREVISION_H
|
|
|
|
#include <libopencm3/cm3/common.h>
|
|
|
|
#define DEVICEREVISION_PID2 MMIO32(0xE00FFFE8)
|
|
#define DEVICEREVISION_PID3 MMIO32(0xE00FFFEC)
|
|
|
|
/* devicerevision_revision_get has a comment that would make these definitions
|
|
* obsolete; i'm not sure how far it is reasonable to parameterize everythin
|
|
* g*/
|
|
#define DEVICEREVISION_REVISION_LENGTH 4
|
|
#define DEVICEREVISION_REVISION_SHIFT 4
|
|
#define DEVICEREVISION_REVISION_MASK (~(~0<<DEVICEREVISION_REVISION_LENGTH)<<DEVICEREVISION_REVISION_SHIFT) /* 0x000000f0, bits 7:4 */
|
|
|
|
#define DEVICEREVISION_REVISION_A 0x00
|
|
|
|
/* Read the device's hardcoded Revision. Return values can be compared against
|
|
* the DEVICEREVISION_REVISION_A constant, the only value given in the current
|
|
* specification. */
|
|
extern u8 devicerevision_revision_get(void);
|
|
|
|
#endif
|