platform: add Radxa ROCK 5A platform support

Signed-off-by: Nascs <nascs@radxa.com>

README.md

@@ -45,6 +45,7 @@ ARM
 * [phyBOARD-Wega](../master/docs/phyboard-wega.md)
 * [96Boards](../master/docs/96boards.md)
 * [ADLINK IPi-SMARC ARM](../master/docs/adlink_ipi_arm.md)
+* [Radxa ROCK 5A](../mraa//docs/radxa_rock_5a.md)
 * [Rock Pi 4](../master/docs/rockpi4.md)
 
 MIPS

api/mraa/types.h

@@ -71,6 +71,7 @@ typedef enum {
     MRAA_SIEMENS_IOT2050 = 26,      /**< Siemens IOT2050 board */
     MRAA_RADXA_ROCK_3C = 27,        /**< Radxa ROCK 3 Model C */
     MRAA_VISIONFIVE = 28,           /**< StarFive VisionFive board */
+    MRAA_RADXA_ROCK_5A = 29,         /**< Radxa ROCK 5 Model A */
 
     // USB platform extenders start at 256
     MRAA_FTDI_FT4222 = 256,         /**< FTDI FT4222 USB to i2c bridge */
@@ -178,6 +179,40 @@ typedef enum {
     MRAA_INTEL_EDISON_GP81 = 55
 } mraa_intel_edison_t;
 
+/**
+ * Radxa ROCK 5 Model A GPIO numbering enum
+ */
+typedef enum {
+    MRAA_RADXA_ROCK_5A_PIN3 = 3,
+    MRAA_RADXA_ROCK_5A_PIN5 = 5,
+    MRAA_RADXA_ROCK_5A_PIN7 = 7,
+    MRAA_RADXA_ROCK_5A_PIN8 = 8,
+    MRAA_RADXA_ROCK_5A_PIN10 = 10,
+    MRAA_RADXA_ROCK_5A_PIN11 = 11,
+    MRAA_RADXA_ROCK_5A_PIN12 = 12,
+    MRAA_RADXA_ROCK_5A_PIN13 = 13,
+    MRAA_RADXA_ROCK_5A_PIN15 = 15,
+    MRAA_RADXA_ROCK_5A_PIN16 = 16,
+    MRAA_RADXA_ROCK_5A_PIN18 = 18,
+    MRAA_RADXA_ROCK_5A_PIN19 = 19,
+    MRAA_RADXA_ROCK_5A_PIN21 = 21,
+    MRAA_RADXA_ROCK_5A_PIN22 = 22,
+    MRAA_RADXA_ROCK_5A_PIN23 = 23,
+    MRAA_RADXA_ROCK_5A_PIN24 = 24,
+    MRAA_RADXA_ROCK_5A_PIN26 = 26,
+    MRAA_RADXA_ROCK_5A_PIN27 = 27,
+    MRAA_RADXA_ROCK_5A_PIN28 = 28,
+    MRAA_RADXA_ROCK_5A_PIN29 = 29,
+    MRAA_RADXA_ROCK_5A_PIN31 = 31,
+    MRAA_RADXA_ROCK_5A_PIN32 = 32,
+    MRAA_RADXA_ROCK_5A_PIN33 = 33,
+    MRAA_RADXA_ROCK_5A_PIN35 = 35,
+    MRAA_RADXA_ROCK_5A_PIN36 = 36,
+    MRAA_RADXA_ROCK_5A_PIN37 = 37,
+    MRAA_RADXA_ROCK_5A_PIN38 = 38,
+    MRAA_RADXA_ROCK_5A_PIN40 = 40
+} mraa_radxa_rock_5a_wiring_t;
+
 /**
  *  Radxa ROCK 3 Model C GPIO numbering enum
  */

api/mraa/types.hpp

@@ -65,6 +65,7 @@ typedef enum {
     SIEMENS_IOT2050 = 26,      /**< Siemens IOT2050 board */
     RADXA_ROCK_3C = 27,        /**< Radxa ROCK 3 Model C */
     VISIONFIVE = 28,           /**< StarFive VisionFive board */
+    RADXA_ROCK_5A = 29,        /**< Radxa ROCK 5 Model A */
 
     FTDI_FT4222 = 256,         /**< FTDI FT4222 USB to i2c bridge */
 
@@ -169,6 +170,40 @@ typedef enum {
     INTEL_EDISON_GP81 = 55
 } IntelEdison;
 
+/**
+ * Radxa ROCK 5 Model A GPIO numbering enum
+ */
+typedef enum {
+    RADXA_ROCK_5A_PIN3 = 3,
+    RADXA_ROCK_5A_PIN5 = 5,
+    RADXA_ROCK_5A_PIN7 = 7,
+    RADXA_ROCK_5A_PIN8 = 8,
+    RADXA_ROCK_5A_PIN10 = 10,
+    RADXA_ROCK_5A_PIN11 = 11,
+    RADXA_ROCK_5A_PIN12 = 12,
+    RADXA_ROCK_5A_PIN13 = 13,
+    RADXA_ROCK_5A_PIN15 = 15,
+    RADXA_ROCK_5A_PIN16 = 16,
+    RADXA_ROCK_5A_PIN18 = 18,
+    RADXA_ROCK_5A_PIN19 = 19,
+    RADXA_ROCK_5A_PIN21 = 21,
+    RADXA_ROCK_5A_PIN22 = 22,
+    RADXA_ROCK_5A_PIN23 = 23,
+    RADXA_ROCK_5A_PIN24 = 24,
+    RADXA_ROCK_5A_PIN26 = 26,
+    RADXA_ROCK_5A_PIN27 = 27,
+    RADXA_ROCK_5A_PIN28 = 28,
+    RADXA_ROCK_5A_PIN29 = 29,
+    RADXA_ROCK_5A_PIN31 = 31,
+    RADXA_ROCK_5A_PIN32 = 32,
+    RADXA_ROCK_5A_PIN33 = 33,
+    RADXA_ROCK_5A_PIN35 = 35,
+    RADXA_ROCK_5A_PIN36 = 36,
+    RADXA_ROCK_5A_PIN37 = 37,
+    RADXA_ROCK_5A_PIN38 = 38,
+    RADXA_ROCK_5A_PIN40 = 40
+} RadxaRock5AWiring;
+
 /**
  *  Radxa ROCK 3 Model C GPIO numbering enum
  */

docs/radxa_rock_5a.md

@@ -0,0 +1,47 @@
+Radxa ROCK 5 Model A {#_Radxa}
+====================
+
+Radxa ROCK 5A is a Rockchip RK3588s based SBC(Single Board Computer) by Radxa. It can run android or some Linux distributions. Radxa ROCK 5A features a eight core ARM processor, 64bit dual channel 3200Mb/s LPDDR4, up to 8Kp60 HDMI, MIPI DSI, MIPI CSI, 3.5mm jack with mic, 802.11 ac WIFI, Bluetooth 5.0, USB Port, GbE LAN, 40-pin color expansion header, RTC. Also, Radxa ROCK 5A supports USB PD and QC powering.
+
+Interface notes
+---------------
+
+- UART2 is enabled as the default console.
+- All UART ports support baud up to 1500000.
+
+Pin Mapping
+-----------
+
+Radxa ROCK 5A has a 40-pin expansion header. Each pin is distinguished by color.
+
+|Function4   |Function3   |Function2   |Function1  |       |  PIN  |  PIN    |   Function1|  Function2|   Function3|
+|------------|------------|------------|-----------|:------|------:|---------|------------|-----------|------------|
+|            |            |            |+3.3V      |   1   |   2   |    +5.0V|            |           |            |
+|            |PWM15_IR_M3 |I2C8_SDA_M2 |GPIO1_D7   |   3   |   4   |    +5.0V| UART2_TX_M0|I2C1_SCL_M0|            |
+|            |PWM14_M2    |I2C8_SCL_M2 |GPIO1_D6   |   5   |   6   |      GND| UART2_RX_M0|I2C1_SDA_M0|            |
+|            |UART4_TX_M2 |SPI0_CLK_M2 |GPIO1_B3   |   7   |   8   | GPIO0_B5|SPI0_MOSI_M1|           |            |
+|            |            |            |GND        |   9   |   10  | GPIO0_B6|            |           |            |
+|            |PWM15_IR_M1 |I2C7_SDA_M3 |GPIO4_B3   |   11  |   12  | GPIO4_A1|            |           |            |
+|PWM14_M1    |SPI0_CS0_M1 |I2C7_SCL_M3 |GPIO4_B2   |   13  |   14  |      GND|            |           |            |
+|            |PWM11_IR_M1 |UART9_TX_M1 |GPIO4_B4   |   15  |   16  | GPIO1_A5|SPI2_MOSI_M0|           |            |
+|            |            |            |+3.3       |   17  |   18  | GPIO1_B0| SPI2_CS1_M0|           |            |
+|UART6_TX_M1 |SPI4_MOSI_M2|I2C2_SCL_M4 |GPIO1_A1   |   19  |   20  |      GND|            |           |            |
+|UART6_RX_M1 |SPI4_MISO_M2|I2C2_SDA_M4 |GPIO1_A0   |   21  |   22  | GPIO1_B5| SPI0_CS1_M2|UART7_TX_M2|            |
+|PWM0_M2     |SPI4_CLK_M2 |I2C4_SDA_M3 |GPIO1_A2   |   23  |   24  | GPIO1_A3| I2C4_SCL_M3|SPI4_CS0_M2|     PWM1_M2|
+|            |            |            |     GND   |   25  |   26  | GPIO1_A4|SPI2_MISO_M0|           |            |
+|SPI0_MISO_M0|I2C6_SDA_M0 |PWM6_M0     |GPIO0_C7   |   27  |   28  | GPIO0_D0|  PWM7_IR_M0|I2C6_SCL_M0|SPI3_MISO_M2|
+|            |UART4_RX_M2 |SPI0_MOSI_M |GPIO1_B2   |   29  |   30  |      GND|            |           |            |
+|            |            |SPI0_MISO_M2|GPIO1_B1   |   31  |   32  | GPIO4_B0| I2C6_SDA_M3|SPI2_CS1_M1| UART8_TX_M0|
+|            |UART7_RX_M2 |SPI0_CS0_M2 |GPIO1_B4   |   33  |   34  |      GND|            |           |            |
+|            |            |SPI0_MISO_M1|GPIO4_A0   |   35  |   36  | GPIO4_A2| SPI0_CLK_M1|           |            |
+|            |            |            |SARADC_VIN2|   37  |   38  | GPIO4_A5| I2C3_SDA_M2|UART3_TX_M2|            |
+|            |            |            |GND        |   39  |   40  | GPIO4_B1| I2C6_SCL_M3|SPI0_CS1_M1| UART8_RX_M0|
+
+Resources
+---------
+
+You can find additional product support in the following channels:
+
+- [Product Info](https://docs.radxa.com/en/rock5/rock5a)
+- [Forums](https://forum.radxa.com/c/rock5)
+- [Github](https://github.com/radxa)

include/arm/radxa_rock_5a.h

@@ -0,0 +1,30 @@
+/*
+ * Author: Nascs <nascs@radxa.com>
+ * Copyright (c) Radxa Limited.
+ *
+ * SPDX-License-Identifier: MIT
+ */
+
+#pragma once
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include "mraa_internal.h"
+
+#define MRAA_RADXA_ROCK_5A_GPIO_COUNT 27
+#define MRAA_RADXA_ROCK_5A_I2C_COUNT  5
+#define MRAA_RADXA_ROCK_5A_SPI_COUNT  2
+#define MRAA_RADXA_ROCK_5A_UART_COUNT 5
+#define MRAA_RADXA_ROCK_5A_PWM_COUNT  9
+#define MRAA_RADXA_ROCK_5A_AIO_COUNT  1
+#define MRAA_RADXA_ROCK_5A_PIN_COUNT  40
+#define PLATFORM_NAME_RADXA_ROCK_5A   "Radxa ROCK 5A"
+
+mraa_board_t *
+        mraa_radxa_rock_5a();
+
+#ifdef __cplusplus
+}
+#endif

src/CMakeLists.txt

@@ -108,6 +108,7 @@ set (mraa_LIB_ARM_SRCS_NOAUTO
   ${PROJECT_SOURCE_DIR}/src/arm/banana.c
   ${PROJECT_SOURCE_DIR}/src/arm/de_nano_soc.c
   ${PROJECT_SOURCE_DIR}/src/arm/radxa_rock_3c.c
+  ${PROJECT_SOURCE_DIR}/src/arm/radxa_rock_5a.c
   ${PROJECT_SOURCE_DIR}/src/arm/rockpi4.c
   ${PROJECT_SOURCE_DIR}/src/arm/adlink_ipi.c
   ${PROJECT_SOURCE_DIR}/src/arm/siemens/iot2050.c

src/arm/arm.c

@@ -11,6 +11,7 @@
 
 #include "arm/96boards.h"
 #include "arm/radxa_rock_3c.h"
+#include "arm/radxa_rock_5a.h"
 #include "arm/rockpi4.h"
 #include "arm/de_nano_soc.h"
 #include "arm/banana.h"
@@ -94,6 +95,8 @@ mraa_arm_platform()
             platform_type = MRAA_96BOARDS;
         else if (mraa_file_contains("/proc/device-tree/model", PLATFORM_NAME_RADXA_ROCK_3C))
             platform_type = MRAA_RADXA_ROCK_3C;
+        else if (mraa_file_contains("/proc/device-tree/model", PLATFORM_NAME_RADXA_ROCK_5A))
+            platform_type = MRAA_RADXA_ROCK_5A;
         else if (mraa_file_contains("/proc/device-tree/model", "ROCK Pi 4") ||
                  mraa_file_contains("/proc/device-tree/model", "ROCK PI 4") ||
                  mraa_file_contains("/proc/device-tree/model", "ROCK 4")
@@ -126,6 +129,9 @@ mraa_arm_platform()
         case MRAA_RADXA_ROCK_3C:
             plat = mraa_radxa_rock_3c();
             break;
+        case MRAA_RADXA_ROCK_5A:
+            plat = mraa_radxa_rock_5a();
+            break;
         case MRAA_ROCKPI4:
             plat = mraa_rockpi4();
             break;