pinmux: Add support for ARM V2M Beetle Initialization

This patch adds the support for the board pinmux initialization on
ARM V2M Beetle.

The GPIO controllers 2 and 3 are reserved and therefore neither exposed
nor configured by this driver.

Jira: ZEP-1245
Change-Id: Id5499c5dd887c319730408eeb30f02eeed1c3699
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@linaro.org>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
This commit is contained in:
Vincenzo Frascino 2016-09-08 10:54:21 +01:00 committed by Kumar Gala
commit c0c3e33e4a
4 changed files with 185 additions and 0 deletions

View file

@ -53,4 +53,6 @@ config PINMUX_K64
source "drivers/pinmux/Kconfig.stm32"
source "drivers/pinmux/Kconfig.beetle"
endif # PINMUX

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@ -0,0 +1,24 @@
# Kconfig.beetle - ARM V2M Beetle PINMUX configuration options
#
#
# Copyright (c) 2016 Linaro Limited
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
menuconfig PINMUX_BEETLE
bool "ARM V2M Beetle Pin multiplexer driver"
depends on PINMUX && SOC_SERIES_BEETLE
default n
help
Enable driver for ARM V2M Beetle Pin multiplexer.

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@ -5,6 +5,7 @@ obj-$(CONFIG_PINMUX_K64) += k64/pinmux.o
obj-$(CONFIG_BOARD_FRDM_K64F) += k64/pinmux_board_frdm_k64f.o
obj-$(CONFIG_BOARD_HEXIWEAR_K64) += k64/pinmux_board_hexiwear.o
obj-$(CONFIG_PINMUX_STM32) += stm32/pinmux_stm32.o
obj-$(CONFIG_PINMUX_BEETLE) += beetle/pinmux_board_v2m_beetle.o
obj-$(CONFIG_BOARD_NUCLEO_F103RB) += stm32/pinmux_board_nucleo_f103rb.o
obj-$(CONFIG_BOARD_NUCLEO_F401RE) += stm32/pinmux_board_nucleo_f401re.o
obj-$(CONFIG_BOARD_96B_CARBON) += stm32/pinmux_board_carbon.o

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@ -0,0 +1,158 @@
/*
* Copyright (c) 2016 Linaro Limited
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <device.h>
#include <init.h>
#include <nanokernel.h>
#include <pinmux.h>
#include <soc.h>
#include <sys_io.h>
#include <gpio/gpio_cmsdk_ahb.h>
#include "pinmux/pinmux.h"
/**
* @brief Pinmux driver for ARM V2M Beetle Board
*
* The ARM V2M Beetle Board has 4 GPIO controllers. These controllers
* are responsible for pin muxing, input/output, pull-up, etc.
*
* The GPIO controllers 2 and 3 are reserved and therefore not exposed by
* this driver.
*
* All GPIO controller exposed pins are exposed via the following sequence of
* pin numbers:
* Pins 0 - 15 are for GPIO0
* Pins 16 - 31 are for GPIO1
*
* For the exposed GPIO controllers ARM V2M Beetle Board follows the Arduino
* compliant pin out.
*/
#define CMSDK_AHB_GPIO0_DEV \
((volatile struct gpio_cmsdk_ahb *)CMSDK_AHB_GPIO0)
#define CMSDK_AHB_GPIO1_DEV \
((volatile struct gpio_cmsdk_ahb *)CMSDK_AHB_GPIO1)
/*
* This is the mapping from the ARM V2M Beetle Board pins to GPIO
* controllers.
*
* D0 : P0_0
* D1 : P0_1
* D2 : P0_2
* D3 : P0_3
* D4 : P0_4
* D5 : P0_5
* D6 : P0_6
* D7 : P0_7
* D8 : P0_8
* D9 : P0_9
* D10 : P0_10
* D11 : P0_11
* D12 : P0_12
* D13 : P0_13
* D14 : P0_14
* D15 : P0_15
* D16 : P1_0
* D17 : P1_1
* D18 : P1_2
* D19 : P1_3
* D20 : P1_4
* D21 : P1_5
* D22 : P1_6
* D23 : P1_7
* D24 : P1_8
* D25 : P1_9
* D26 : P1_10
* D27 : P1_11
* D28 : P1_12
* D29 : P1_13
* D30 : P1_14
* D31 : P1_15
*
* UART_0_RX : D0
* UART_0_TX : D1
* SPI_0_CS : D10
* SPI_0_MOSI : D11
* SPI_0_MISO : D12
* SPI_0_SCLK : D13
* I2C_0_SCL : D14
* I2C_0_SDA : D15
* UART_1_RX : D16
* UART_1_TX : D17
* SPI_1_CS : D18
* SPI_1_MOSI : D19
* SPI_1_MISO : D20
* SPI_1_SCK : D21
* I2C_1_SDA : D22
* I2C_1_SCL : D23
*
*/
static void arm_v2m_beetle_pinmux_defaults(void)
{
uint32_t gpio_0 = 0;
uint32_t gpio_1 = 0;
/* Set GPIO Alternate Functions */
gpio_0 = (1<<0); /* Sheild 0 UART 0 RXD */
gpio_0 |= (1<<1); /* Sheild 0 UART 0 TXD */
gpio_0 |= (1<<14); /* Sheild 0 I2C SDA SBCON2 */
gpio_0 |= (1<<15); /* Sheild 0 I2C SCL SBCON2 */
gpio_0 |= (1<<10); /* Sheild 0 SPI_3 nCS */
gpio_0 |= (1<<11); /* Sheild 0 SPI_3 MOSI */
gpio_0 |= (1<<12); /* Sheild 0 SPI_3 MISO */
gpio_0 |= (1<<13); /* Sheild 0 SPI_3 SCK */
CMSDK_AHB_GPIO0_DEV->altfuncset = gpio_0;
gpio_1 = (1<<0); /* UART 1 RXD */
gpio_1 |= (1<<1); /* UART 1 TXD */
gpio_1 |= (1<<6); /* Sheild 1 I2C SDA */
gpio_1 |= (1<<7); /* Sheild 1 I2C SCL */
gpio_1 |= (1<<2); /* ADC SPI_1 nCS */
gpio_1 |= (1<<3); /* ADC SPI_1 MOSI */
gpio_1 |= (1<<4); /* ADC SPI_1 MISO */
gpio_1 |= (1<<5); /* ADC SPI_1 SCK */
gpio_1 |= (1<<8); /* QSPI CS 2 */
gpio_1 |= (1<<9); /* QSPI CS 1 */
gpio_1 |= (1<<10); /* QSPI IO 0 */
gpio_1 |= (1<<11); /* QSPI IO 1 */
gpio_1 |= (1<<12); /* QSPI IO 2 */
gpio_1 |= (1<<13); /* QSPI IO 3 */
gpio_1 |= (1<<14); /* QSPI SCK */
CMSDK_AHB_GPIO1_DEV->altfuncset = gpio_1;
/* Set the ARD_PWR_EN GPIO1[15] as an output */
CMSDK_AHB_GPIO1_DEV->outenableset |= (0x1 << 15);
/* Set on 3v3 (for ARDUINO HDR compliancy) */
CMSDK_AHB_GPIO1_DEV->data |= (0x1 << 15);
}
static int arm_v2m_beetle_pinmux_init(struct device *port)
{
ARG_UNUSED(port);
arm_v2m_beetle_pinmux_defaults();
return 0;
}
SYS_INIT(arm_v2m_beetle_pinmux_init, PRE_KERNEL_1,
CONFIG_KERNEL_INIT_PRIORITY_DEFAULT);