| /* |
| * Copyright (c) 2016 Linaro Limited |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #include <device.h> |
| #include <init.h> |
| #include <kernel.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 MPS2 AN385 Board |
| * |
| * The ARM MPS2 AN385 Board has 4 GPIO controllers. These controllers |
| * are responsible for pin muxing, input/output, pull-up, etc. |
| * |
| * All GPIO controller pins are exposed via the following sequence of pin |
| * numbers: |
| * Pins 0 - 15 are for GPIO0 |
| * Pins 16 - 31 are for GPIO1 |
| * Pins 32 - 47 are for GPIO2 |
| * Pins 48 - 51 are for GPIO3 |
| * |
| * For the GPIO controllers configuration ARM MPS2 AN385 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) |
| #define CMSDK_AHB_GPIO2_DEV \ |
| ((volatile struct gpio_cmsdk_ahb *)CMSDK_AHB_GPIO2) |
| #define CMSDK_AHB_GPIO3_DEV \ |
| ((volatile struct gpio_cmsdk_ahb *)CMSDK_AHB_GPIO3) |
| |
| /* |
| * This is the mapping from the ARM MPS2 AN385 Board pins to GPIO |
| * controllers. |
| * |
| * D0 : EXT_0 |
| * D1 : EXT_4 |
| * D2 : EXT_2 |
| * D3 : EXT_3 |
| * D4 : EXT_1 |
| * D5 : EXT_6 |
| * D6 : EXT_7 |
| * D7 : EXT_8 |
| * D8 : EXT_9 |
| * D9 : EXT_10 |
| * D10 : EXT_12 |
| * D11 : EXT_13 |
| * D12 : EXT_14 |
| * D13 : EXT_11 |
| * D14 : EXT_15 |
| * D15 : EXT_5 |
| * D16 : EXT_16 |
| * D17 : EXT_17 |
| * D18 : EXT_18 |
| * D19 : EXT_19 |
| * D20 : EXT_20 |
| * D21 : EXT_21 |
| * D22 : EXT_22 |
| * D23 : EXT_23 |
| * D24 : EXT_24 |
| * D25 : EXT_25 |
| * D26 : EXT_26 |
| * D27 : EXT_30 |
| * D28 : EXT_28 |
| * D29 : EXT_29 |
| * D30 : EXT_27 |
| * D31 : EXT_32 |
| * D32 : EXT_33 |
| * D33 : EXT_34 |
| * D34 : EXT_35 |
| * D35 : EXT_36 |
| * D36 : EXT_38 |
| * D37 : EXT_39 |
| * D38 : EXT_40 |
| * D39 : EXT_44 |
| * D40 : EXT_41 |
| * D41 : EXT_31 |
| * D42 : EXT_37 |
| * D43 : EXT_42 |
| * D44 : EXT_43 |
| * D45 : EXT_45 |
| * D46 : EXT_46 |
| * D47 : EXT_47 |
| * D48 : EXT_48 |
| * D49 : EXT_49 |
| * D50 : EXT_50 |
| * D51 : EXT_51 |
| * |
| * UART_3_RX : D0 |
| * UART_3_TX : D1 |
| * SPI_3_CS : D10 |
| * SPI_3_MOSI : D11 |
| * SPI_3_MISO : D12 |
| * SPI_3_SCLK : D13 |
| * I2C_3_SDA : D14 |
| * I2C_3_SCL : D15 |
| * UART_4_RX : D26 |
| * UART_4_TX : D30 |
| * SPI_4_CS : D36 |
| * SPI_4_MOSI : D37 |
| * SPI_4_MISO : D38 |
| * SPI_4_SCK : D39 |
| * I2C_4_SDA : D40 |
| * I2C_4_SCL : D41 |
| * |
| */ |
| static void arm_mps2_pinmux_defaults(void) |
| { |
| u32_t gpio_0 = 0; |
| u32_t gpio_1 = 0; |
| u32_t gpio_2 = 0; |
| |
| /* Set GPIO Alternate Functions */ |
| |
| gpio_0 = (1<<0) /* Shield 0 UART 3 RXD */ |
| | (1<<4) /* Shield 0 UART 3 TXD */ |
| | (1<<5) /* Shield 0 I2C 3 SDL SBCON2 */ |
| | (1<<15) /* Shield 0 I2C 3 SDA SBCON2 */ |
| | (1<<11) /* Shield 0 SPI 3 nCS */ |
| | (1<<12) /* Shield 0 SPI 3 MOSI */ |
| | (1<<13) /* Shield 0 SPI 3 MISO */ |
| | (1<<14); /* Shield 0 SPI 3 SCK */ |
| |
| CMSDK_AHB_GPIO0_DEV->altfuncset = gpio_0; |
| |
| gpio_1 = (1<<10) /* Shield 1 UART 4 RXD */ |
| | (1<<14) /* Shield 1 UART 4 TXD */ |
| | (1<<15) /* Shield 1 I2C 4 SCL */ |
| | (1<<0) /* ADC SPI_1 nCS */ |
| | (1<<1) /* ADC SPI_1 MOSI */ |
| | (1<<2) /* ADC SPI_1 MISO */ |
| | (1<<3) /* ADC SPI_1 SCK */ |
| | (1<<5) /* USER BUTTON 0 */ |
| | (1<<6); /* USER BUTTON 1 */ |
| |
| CMSDK_AHB_GPIO1_DEV->altfuncset = gpio_1; |
| |
| gpio_2 = (1<<9) /* Shield 1 I2C 4 SDA */ |
| | (1<<6) /* Shield 1 I2C 4 SDA */ |
| | (1<<7) /* Shield 1 I2C 4 SDA */ |
| | (1<<8) /* Shield 1 I2C 4 SDA */ |
| | (1<<12); /* Shield 1 I2C 4 SDA */ |
| |
| CMSDK_AHB_GPIO2_DEV->altfuncset = gpio_2; |
| } |
| |
| static int arm_mps2_pinmux_init(struct device *port) |
| { |
| ARG_UNUSED(port); |
| |
| arm_mps2_pinmux_defaults(); |
| |
| return 0; |
| } |
| |
| SYS_INIT(arm_mps2_pinmux_init, PRE_KERNEL_1, |
| CONFIG_KERNEL_INIT_PRIORITY_DEFAULT); |
