Add SDIO support for NXP LPC55S69

Tested this with the block device test inside features-storage-tests-blockdevice-general_block_device
Below was the change made to add SDIO test

--- a/features/storage/TESTS/blockdevice/general_block_device/main.cpp
+++ b/features/storage/TESTS/blockdevice/general_block_device/main.cpp
@@ -47,6 +47,8 @@
 #include "FlashIAPBlockDevice.h"
 #endif

+#include "SDIOBlockDevice.h"
+
 using namespace utest::v1;

 #define TEST_BLOCK_COUNT 10
@@ -69,6 +71,7 @@ enum bd_type {
     dataflash,
     sd,
     flashiap,
+    sdio,
     default_bd
 };

@@ -90,6 +93,11 @@ static inline uint32_t align_up(uint32_t val, uint32_t size)
 static BlockDevice *get_bd_instance(uint8_t bd_type)
 {
     switch (bd_arr[bd_type]) {
+        case sdio: {
+            static SDIOBlockDevice default_bd(P0_17);
+            return &default_bd;
+            break;
+        }
         case spif: {
 #if COMPONENT_SPIF
             static SPIFBlockDevice default_bd(
@@ -632,6 +640,8 @@ void test_get_type_functionality()
     const char *bd_type = block_device->get_type();
     TEST_ASSERT_NOT_EQUAL(0, bd_type);

+    TEST_ASSERT_EQUAL(0, strcmp(bd_type, "SDIO"));
+
 #if COMPONENT_QSPIF
     TEST_ASSERT_EQUAL(0, strcmp(bd_type, "QSPIF"));
 #elif COMPONENT_SPIF
@@ -708,10 +718,12 @@ int get_bd_count()
     bd_arr[count++] = flashiap;       //4
 #endif

+    bd_arr[count++] = sdio;       //5
+
     return count;
 }

-static const char *prefix[] = {"SPIF ", "QSPIF ", "DATAFLASH ", "SD ", "FLASHIAP ", "DEFAULT "};
+static const char *prefix[] = {"SPIF ", "QSPIF ", "DATAFLASH ", "SD ", "FLASHIAP ", "SDIO ", "DEFAULT "};

 int main()
 {

Signed-off-by: Mahesh Mahadevan <mahesh.mahadevan@nxp.com>

Author: mmahadevan108

target/TARGET_NXP/board.h

@@ -0,0 +1,41 @@
+/*
+ * Copyright 2017-2018 NXP
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef _BOARD_H_
+#define _BOARD_H_
+
+#include "fsl_common.h"
+#include "fsl_gpio.h"
+#include "fsl_iocon.h"
+
+/*******************************************************************************
+ * Definitions
+ ******************************************************************************/
+
+#define BOARD_SDIF_BASEADDR SDIF
+#define BOARD_SDIF_CLKSRC kCLOCK_SDio
+#define BOARD_SDIF_CLK_FREQ CLOCK_GetFreq(kCLOCK_SDio)
+#define BOARD_SDIF_CLK_ATTACH kMAIN_CLK_to_SDIO_CLK
+#define BOARD_SDIF_IRQ SDIO_IRQn
+#define BOARD_MMC_VCC_SUPPLY kMMC_VoltageWindows270to360
+#define BOARD_SD_CARD_DETECT_PIN 17
+#define BOARD_SD_CARD_DETECT_PORT 0
+#define BOARD_SD_CARD_DETECT_GPIO GPIO
+#define BOARD_SD_DETECT_TYPE kSDMMCHOST_DetectCardByHostCD
+
+#define BOARD_SDIF_CD_GPIO_INIT()                                                                    \
+    {                                                                                                \
+        CLOCK_EnableClock(kCLOCK_Gpio2);                                                             \
+        GPIO_PinInit(BOARD_SD_CARD_DETECT_GPIO, BOARD_SD_CARD_DETECT_PORT, BOARD_SD_CARD_DETECT_PIN, \
+                     &(gpio_pin_config_t){kGPIO_DigitalInput, 0U});                                  \
+    }
+#define BOARD_SDIF_CD_STATUS() \
+    GPIO_PinRead(BOARD_SD_CARD_DETECT_GPIO, BOARD_SD_CARD_DETECT_PORT, BOARD_SD_CARD_DETECT_PIN)
+
+#define BOARD_SDIF_CLK_ATTACH kMAIN_CLK_to_SDIO_CLK
+
+#endif /* _BOARD_H_ */