168 lines
5.9 KiB
C
168 lines
5.9 KiB
C
/*
|
|
* pinmux.c
|
|
*
|
|
* configure the device pins for different peripheral signals
|
|
*
|
|
* Copyright (C) 2017 Texas Instruments Incorporated - http://www.ti.com/
|
|
*
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* 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.
|
|
*
|
|
* Neither the name of Texas Instruments Incorporated 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
|
|
* OWNER 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.
|
|
*/
|
|
|
|
/*
|
|
* This file was automatically generated on 7/21/2014 at 3:06:20 PM
|
|
* by TI PinMux version 3.0.334
|
|
* (Then modified to meet Zephyr coding style)
|
|
*/
|
|
|
|
/*
|
|
* TI Recommends use of the PinMux utility to ensure consistent configuration
|
|
* of pins: http://processors.wiki.ti.com/index.php/TI_PinMux_Tool
|
|
*
|
|
* Zephyr GPIO API however allows runtime configuration by applications.
|
|
*
|
|
* For the TI CC32XX port we leverage this output file
|
|
* from the PinMux tool, and guard sections based on Kconfig variables.
|
|
*
|
|
* The individual (uart/gpio) driver init/configuration functions
|
|
* therefore assume pinmux initialization is done here rather in the drivers
|
|
* at runtime.
|
|
*/
|
|
|
|
#include <init.h>
|
|
|
|
#include "pinmux.h"
|
|
|
|
#include <inc/hw_types.h>
|
|
#include <inc/hw_memmap.h>
|
|
#include <inc/hw_gpio.h>
|
|
#include <driverlib/pin.h>
|
|
#include <driverlib/rom.h>
|
|
#include <driverlib/rom_map.h>
|
|
#include <driverlib/gpio.h>
|
|
#include <driverlib/prcm.h>
|
|
#include <driverlib/i2c.h>
|
|
|
|
/* Defines taken from SimpleLink SDK's I2CCC32XX.h: */
|
|
/*
|
|
* Macros defining possible I2C signal pin mux options
|
|
*
|
|
* The bits in the pin mode macros are as follows:
|
|
* The lower 8 bits of the macro refer to the pin, offset by 1, to match
|
|
* driverlib pin defines. For example, I2C_CC32XX_PIN_01_I2C_SCL & 0xff = 0,
|
|
* which equals PIN_01 in driverlib pin.h. By matching the PIN_xx defines in
|
|
* driverlib pin.h, we can pass the pin directly to the driverlib functions.
|
|
* The upper 8 bits of the macro correspond to the pin mux confg mode
|
|
* value for the pin to operate in the I2C mode. For example, pin 1 is
|
|
* configured with mode 1 to operate as I2C_SCL.
|
|
*/
|
|
#define I2C_CC32XX_PIN_01_I2C_SCL 0x100 /*!< PIN 1 is used for I2C_SCL */
|
|
#define I2C_CC32XX_PIN_02_I2C_SDA 0x101 /*!< PIN 2 is used for I2C_SDA */
|
|
#define I2C_CC32XX_PIN_03_I2C_SCL 0x502 /*!< PIN 3 is used for I2C_SCL */
|
|
#define I2C_CC32XX_PIN_04_I2C_SDA 0x503 /*!< PIN 4 is used for I2C_SDA */
|
|
#define I2C_CC32XX_PIN_05_I2C_SCL 0x504 /*!< PIN 5 is used for I2C_SCL */
|
|
#define I2C_CC32XX_PIN_06_I2C_SDA 0x505 /*!< PIN 6 is used for I2C_SDA */
|
|
#define I2C_CC32XX_PIN_16_I2C_SCL 0x90F /*!< PIN 16 is used for I2C_SCL */
|
|
#define I2C_CC32XX_PIN_17_I2C_SDA 0x910 /*!< PIN 17 is used for I2C_SDA */
|
|
|
|
int pinmux_initialize(struct device *port)
|
|
{
|
|
ARG_UNUSED(port);
|
|
|
|
#ifdef CONFIG_UART_CC32XX
|
|
/* Configure PIN_55 for UART0 UART0_TX */
|
|
MAP_PinTypeUART(PIN_55, PIN_MODE_3);
|
|
|
|
/* Configure PIN_57 for UART0 UART0_RX */
|
|
MAP_PinTypeUART(PIN_57, PIN_MODE_3);
|
|
#endif
|
|
|
|
#ifdef CONFIG_GPIO_CC32XX_A1
|
|
/* Enable Peripheral Clocks */
|
|
MAP_PRCMPeripheralClkEnable(PRCM_GPIOA1, PRCM_RUN_MODE_CLK);
|
|
|
|
/* The following enables the 3 LEDs for the blinking samples */
|
|
|
|
/* Configure PIN_64 for GPIOOutput */
|
|
MAP_PinTypeGPIO(PIN_64, PIN_MODE_0, false);
|
|
MAP_GPIODirModeSet(GPIOA1_BASE, 0x2, GPIO_DIR_MODE_OUT);
|
|
|
|
/* Configure PIN_01 for GPIOOutput */
|
|
MAP_PinTypeGPIO(PIN_01, PIN_MODE_0, false);
|
|
MAP_GPIODirModeSet(GPIOA1_BASE, 0x4, GPIO_DIR_MODE_OUT);
|
|
|
|
/* Configure PIN_02 for GPIOOutput */
|
|
MAP_PinTypeGPIO(PIN_02, PIN_MODE_0, false);
|
|
MAP_GPIODirModeSet(GPIOA1_BASE, 0x8, GPIO_DIR_MODE_OUT);
|
|
|
|
/* SW3: Configure PIN_04 (GPIO13) for GPIOInput */
|
|
MAP_PinTypeGPIO(PIN_04, PIN_MODE_0, false);
|
|
MAP_GPIODirModeSet(GPIOA1_BASE, 0x20, GPIO_DIR_MODE_IN);
|
|
#endif
|
|
|
|
#ifdef CONFIG_GPIO_CC32XX_A2
|
|
MAP_PRCMPeripheralClkEnable(PRCM_GPIOA2, PRCM_RUN_MODE_CLK);
|
|
|
|
/* SW2: Configure PIN_15 (GPIO22) for GPIOInput */
|
|
MAP_PinTypeGPIO(PIN_15, PIN_MODE_0, false);
|
|
MAP_GPIODirModeSet(GPIOA2_BASE, 0x40, GPIO_DIR_MODE_IN);
|
|
#endif
|
|
|
|
#ifdef CONFIG_GPIO_CC32XX_A3
|
|
MAP_PRCMPeripheralClkEnable(PRCM_GPIOA3, PRCM_RUN_MODE_CLK);
|
|
|
|
#endif
|
|
|
|
#ifdef CONFIG_I2C_CC32XX
|
|
{
|
|
unsigned long pin;
|
|
unsigned long mode;
|
|
|
|
/* Enable the I2C module clocks and wait for completion:*/
|
|
MAP_PRCMPeripheralClkEnable(PRCM_I2CA0,
|
|
PRCM_RUN_MODE_CLK |
|
|
PRCM_SLP_MODE_CLK);
|
|
while (!MAP_PRCMPeripheralStatusGet(PRCM_I2CA0)) {
|
|
}
|
|
|
|
pin = I2C_CC32XX_PIN_01_I2C_SCL & 0xff;
|
|
mode = (I2C_CC32XX_PIN_01_I2C_SCL >> 8) & 0xff;
|
|
MAP_PinTypeI2C(pin, mode);
|
|
|
|
pin = I2C_CC32XX_PIN_02_I2C_SDA & 0xff;
|
|
mode = (I2C_CC32XX_PIN_02_I2C_SDA >> 8) & 0xff;
|
|
MAP_PinTypeI2C(pin, mode);
|
|
}
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
SYS_INIT(pinmux_initialize, PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_DEFAULT);
|