106 lines
3.3 KiB
C
106 lines
3.3 KiB
C
/* Freescale K20 microprocessor Pin Control register definitions */
|
|
|
|
/*
|
|
* Copyright (c) 2013-2014 Wind River Systems, Inc.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1) Redistributions of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
*
|
|
* 2) Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
*
|
|
* 3) Neither the name of Wind River Systems nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software without
|
|
* specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
/*
|
|
DESCRIPTION
|
|
This module defines the PCR (Port/Pin Control/Configuration Registers) for the
|
|
K20 Family of microprocessors
|
|
*/
|
|
|
|
#ifndef _K20PCR_H_
|
|
#define _K20PCR_H_
|
|
|
|
#include <stdint.h>
|
|
|
|
#define PCR_PORT_A 0
|
|
#define PCR_PORT_B 1
|
|
#define PCR_PORT_C 2
|
|
#define PCR_PORT_D 3
|
|
#define PCR_PORT_E 4
|
|
|
|
#define PCR_MUX_DISABLED 0
|
|
#define PCR_MUX_ALT1 1
|
|
#define PCR_MUX_ALT2 2
|
|
#define PCR_MUX_ALT3 3
|
|
#define PCR_MUX_ALT4 4
|
|
#define PCR_MUX_ALT5 5
|
|
#define PCR_MUX_ALT6 6
|
|
#define PCR_MUX_ALT7 7
|
|
|
|
typedef union {
|
|
uint32_t value;
|
|
struct {
|
|
uint8_t ps : 1 __packed;
|
|
uint8_t pe : 1 __packed;
|
|
uint8_t sre : 1 __packed;
|
|
uint8_t res_3 : 1 __packed;
|
|
uint8_t pfe : 1 __packed;
|
|
uint8_t ode : 1 __packed;
|
|
uint8_t dse : 1 __packed;
|
|
uint8_t res_7 : 1 __packed;
|
|
uint8_t mux : 3 __packed;
|
|
uint8_t res_11_14 : 4 __packed;
|
|
uint8_t lk : 1 __packed;
|
|
uint8_t irqc : 4 __packed;
|
|
uint8_t res_20_23 : 4 __packed;
|
|
uint8_t isf : 1 __packed;
|
|
uint8_t res_25_31 : 7 __packed;
|
|
} field;
|
|
} K20_PCR_t; /* Pin Control Register n, n= 0-31 */
|
|
|
|
typedef union {
|
|
uint32_t value;
|
|
struct {
|
|
uint16_t gpwe : 16 __packed;
|
|
uint16_t gpwd : 16 __packed;
|
|
} field;
|
|
} K20_GPC_t; /* Global Pin Control Low/High Register */
|
|
|
|
/* K20 Microntroller PCR module register structure */
|
|
|
|
typedef volatile struct {
|
|
struct {
|
|
K20_PCR_t pcr[32] __packed; /* 0x00-07C */
|
|
K20_GPC_t gpchr __packed; /* 0x80 */
|
|
K20_GPC_t gpclr __packed; /* 0x84 */
|
|
uint8_t res_88_9F[0xA0 - 0x88]; /* 0x88-0x9F Reserved */
|
|
uint32_t isfr __packed; /* 0xA0 */
|
|
uint8_t res_A4_FF[0x1000 - 0xA4]; /* 0xA4-0xFFF Reserved */
|
|
} port[5];
|
|
} K20_PORT_PCR_t;
|
|
|
|
/* pin control register for port A..E on pin 0..31 */
|
|
#define K20_PCR(base, port, pin) \
|
|
((K20_PCR_t *)(base + (0x1000 * port) + (pin * 4)))
|
|
|
|
#endif /* _K20PCR_H_ */
|