[imxrt 1170]add flexspi support (#6429)

* [imxrt 1170]add flexspi support

* format file

* format file

* update flexspi serial root clk to 80MHz

* format file

bsp/imxrt/imxrt1170-nxp-evk/board/Kconfig

@@ -32,7 +32,7 @@ menu "On-chip Peripheral Drivers"
         bool "Enable SDIO"
         select RT_USING_SDIO
         select RT_USING_DFS
-        default n 
+        default n
 
     menuconfig BSP_USING_LPUART
         bool "Enable UART"
@@ -106,6 +106,18 @@ menu "On-chip Peripheral Drivers"
 					bool "Enable FLEXCAN3"
 					default n
 			endif
+
+        menuconfig BSP_USING_FLEXSPI
+			bool "Enable FLEXSPI"
+			default n
+			if BSP_USING_FLEXSPI
+				config BSP_USING_FLEXSPI1
+					bool "Enable FLEXCAN1"
+					default n
+                config BSP_USING_FLEXSPI2
+					bool "Enable FLEXCAN2"
+					default n    
+			endif 
 endmenu
 
 menu "Onboard Peripheral Drivers"

bsp/imxrt/imxrt1170-nxp-evk/board/board.c

@@ -10,6 +10,7 @@
  * 2022-08-17     xjy198903    add rgmii pins
  * 2022-09-01     xjy198903    add can pins
  * 2022-09-07     xjy198903    add sdio pins
+ * 2022-09-14     xjy198903    add flexspi pins
  */
 
 #include <rthw.h>
@@ -1273,6 +1274,50 @@ void imxrt_can_pins_init(void)
 }
 #endif
 
+#ifdef BSP_USING_FLEXSPI
+void imxrt_flexspi_pins_init(void)
+{
+#ifdef BSP_USING_FLEXSPI1
+    CLOCK_EnableClock(kCLOCK_Iomuxc); /* LPCG on: LPCG is ON. */
+
+    IOMUXC_SetPinMux(
+        IOMUXC_GPIO_SD_B2_00_FLEXSPI1_B_DATA03, /* GPIO_SD_B2_00 is configured as FLEXSPI1_B_DATA03 */
+        0U);                                    /* Software Input On Field: Input Path is determined by functionality */
+    IOMUXC_SetPinMux(
+        IOMUXC_GPIO_SD_B2_01_FLEXSPI1_B_DATA02, /* GPIO_SD_B2_01 is configured as FLEXSPI1_B_DATA02 */
+        0U);                                    /* Software Input On Field: Input Path is determined by functionality */
+    IOMUXC_SetPinMux(
+        IOMUXC_GPIO_SD_B2_02_FLEXSPI1_B_DATA01, /* GPIO_SD_B2_02 is configured as FLEXSPI1_B_DATA01 */
+        0U);                                    /* Software Input On Field: Input Path is determined by functionality */
+    IOMUXC_SetPinMux(
+        IOMUXC_GPIO_SD_B2_03_FLEXSPI1_B_DATA00, /* GPIO_SD_B2_03 is configured as FLEXSPI1_B_DATA00 */
+        0U);                                    /* Software Input On Field: Input Path is determined by functionality */
+    IOMUXC_SetPinMux(
+        IOMUXC_GPIO_SD_B2_05_FLEXSPI1_A_DQS, /* GPIO_SD_B2_05 is configured as FLEXSPI1_A_DQS */
+        0U);                                 /* Software Input On Field: Input Path is determined by functionality */
+    IOMUXC_SetPinMux(
+        IOMUXC_GPIO_SD_B2_06_FLEXSPI1_A_SS0_B, /* GPIO_SD_B2_06 is configured as FLEXSPI1_A_SS0_B */
+        0U);                                   /* Software Input On Field: Input Path is determined by functionality */
+    IOMUXC_SetPinMux(
+        IOMUXC_GPIO_SD_B2_07_FLEXSPI1_A_SCLK, /* GPIO_SD_B2_07 is configured as FLEXSPI1_A_SCLK */
+        0U);                                  /* Software Input On Field: Input Path is determined by functionality */
+    IOMUXC_SetPinMux(
+        IOMUXC_GPIO_SD_B2_08_FLEXSPI1_A_DATA00, /* GPIO_SD_B2_08 is configured as FLEXSPI1_A_DATA00 */
+        0U);                                    /* Software Input On Field: Input Path is determined by functionality */
+    IOMUXC_SetPinMux(
+        IOMUXC_GPIO_SD_B2_09_FLEXSPI1_A_DATA01, /* GPIO_SD_B2_09 is configured as FLEXSPI1_A_DATA01 */
+        0U);                                    /* Software Input On Field: Input Path is determined by functionality */
+    IOMUXC_SetPinMux(
+        IOMUXC_GPIO_SD_B2_10_FLEXSPI1_A_DATA02, /* GPIO_SD_B2_10 is configured as FLEXSPI1_A_DATA02 */
+        0U);                                    /* Software Input On Field: Input Path is determined by functionality */
+    IOMUXC_SetPinMux(
+        IOMUXC_GPIO_SD_B2_11_FLEXSPI1_A_DATA03, /* GPIO_SD_B2_11 is configured as FLEXSPI1_A_DATA03 */
+        0U);                                    /* Software Input On Field: Input Path is determined by functionality */
+
+#endif
+}
+#endif
+
 void rt_hw_board_init()
 {
     BOARD_ConfigMPU();
@@ -1313,5 +1358,9 @@ void rt_hw_board_init()
 #ifdef BSP_USING_CAN
     imxrt_can_pins_init();
 #endif
+
+#ifdef BSP_USING_FLEXSPI
+    imxrt_flexspi_pins_init();
+#endif
 }
 

bsp/imxrt/imxrt1170-nxp-evk/board/ports/flexspi_port.h

@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 2006-2022, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2022-08-15     xjy198903    The first version for rt1170
+ */
+
+#ifndef FLEXSPI_PORT_H__
+#define FLEXSPI_PORT_H__
+
+/* parameters for flexpsi peripheral */
+#define FLEXSPI1_CONTROL_BASE FLEXSPI1
+#define FLEXSPI2_CONTROL_BASE FLEXSPI2
+#define FLEXSPI_ROOT_CLK (80000000U) /* serial root clk: 80MHz*/
+#define FLASH_SIZE (32 * 1024) /* device size 32*1024(KB) = 32MB */
+#define ARD_SEQ_NUMBER 1       /* Sequence number for AHB read command */
+#define ARD_SEQ_INDEX 0        /* Sequence ID for AHB read command */
+#define AWR_SEQ_NUMBER 1       /* Sequence number for AHB write command */
+#define AWR_SEQ_INDEX 1        /* Sequence ID for AHB write command */
+#define ARD_SEQ_CMD 0xBB       /* cmd for read */
+#define AWR_SEQ_CMD 0xAA       /* cmd for write */
+#define FLEXSPI_RX_SAMPLE_CLOCK kFLEXSPI_ReadSampleClkExternalInputFromDqsPad
+#define FLASH_PORT kFLEXSPI_PortA1
+#define CLOCK_SRC kCLOCK_FLEXSPI2_ClockRoot_MuxOscRc400M
+#define CLOCK_DIV 5U
+#define CUSTOM_LUT_LENGTH 64U
+#define FLEXSPI1_AHB_DATA_ADDRESS (0x30000000U)
+#define FLEXSPI2_AHB_DATA_ADDRESS (0x60000000U)
+#endif /* FLEXSPI_PORT_H__ */

bsp/imxrt/libraries/MIMXRT1170/SConscript

@@ -49,6 +49,9 @@ if GetDepend(['BSP_USING_ETH']):
 if GetDepend(['RT_USING_CAN']):
     src += ['MIMXRT1176/drivers/fsl_flexcan.c']
 
+if GetDepend(['BSP_USING_FLEXSPI']):
+    src += ['MIMXRT1176/drivers/fsl_flexspi.c']
+
 if rtconfig.PLATFORM in ['gcc']:
     group = DefineGroup('Libraries', src, depend = [''], CPPPATH = path, ASFLAGS = '$ASFLAGS -D __STARTUP_CLEAR_BSS')
 else:

bsp/imxrt/libraries/drivers/SConscript

@@ -76,6 +76,9 @@ if GetDepend('RT_USING_USB_HOST'):
 
 if GetDepend('BSP_USING_PULSE_ENCODER'):
     src += ['drv_pulse_encoder.c']
+
+if GetDepend('BSP_USING_FLEXSPI'):
+    src += ['drv_flexspi.c']
     
 src += ['drv_common.c']
 path =  [cwd]

bsp/imxrt/libraries/drivers/drv_flexspi.c

@@ -0,0 +1,145 @@
+/*
+ * Copyright (c) 2006-2022, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2022-09-14     xjy198903    the first version for 1170
+ */
+
+#include <rtthread.h>
+#ifdef BSP_USING_FLEXSPI
+#include "board.h"
+#include <rtdevice.h>
+
+#ifdef RT_USING_FINSH
+#include <finsh.h>
+#endif
+
+#include "flexspi_port.h"
+#include "fsl_flexspi.h"
+
+#define COMBINATION_MODE 1U
+#define FREE_RUNNING_MODE 1U
+
+#define FLEXSPI_DEBUG
+#define LOG_TAG             "drv.flexspi"
+#include <drv_log.h>
+
+static flexspi_device_config_t deviceconfig = {
+    .flexspiRootClk       = 12000000,
+    .flashSize            = FLASH_SIZE,
+    .CSIntervalUnit       = kFLEXSPI_CsIntervalUnit1SckCycle,
+    .CSInterval           = 2,
+    .CSHoldTime           = 3,
+    .CSSetupTime          = 3,
+    .dataValidTime        = 0,
+    .columnspace          = 0,
+    .enableWordAddress    = 0,
+    .AWRSeqIndex          = AWR_SEQ_INDEX,
+    .AWRSeqNumber         = AWR_SEQ_NUMBER,
+    .ARDSeqIndex          = ARD_SEQ_INDEX,
+    .ARDSeqNumber         = ARD_SEQ_NUMBER,
+    .AHBWriteWaitUnit     = kFLEXSPI_AhbWriteWaitUnit2AhbCycle,
+    .AHBWriteWaitInterval = 0,
+};
+
+const uint32_t customLUT[CUSTOM_LUT_LENGTH] = {
+    /* 8bit mode */
+    [4 * ARD_SEQ_INDEX] =
+        FLEXSPI_LUT_SEQ(kFLEXSPI_Command_READ_DDR, kFLEXSPI_8PAD, 0x04, kFLEXSPI_Command_STOP, kFLEXSPI_8PAD, 0),
+};
+
+static void flexspi_clock_init(clock_root_t root, uint8_t src, uint8_t div)
+{
+    /*Clock setting for flexspi1*/
+    CLOCK_SetRootClockDiv(root, div);
+    CLOCK_SetRootClockMux(root, src);
+}
+
+static int rt_hw_imxrt_flexspi_init(void)
+{
+    flexspi_config_t config;
+    FLEXSPI_Type *base;
+
+#ifdef BSP_USING_FLEXSPI1
+    base = FLEXSPI1_CONTROL_BASE;
+#else
+    base = FLEXSPI2_CONTROL_BASE;
+#endif
+
+    //Set root clk 80MHz
+    flexspi_clock_init(kCLOCK_Root_Flexspi1, CLOCK_SRC, CLOCK_DIV);
+
+    /*Get FLEXSPI default settings and configure the flexspi. */
+    FLEXSPI_GetDefaultConfig(&config);
+
+    /*Set AHB buffer size for reading data through AHB bus. */
+    config.ahbConfig.enableAHBPrefetch = true;
+    config.ahbConfig.enableAHBBufferable = true;
+    config.ahbConfig.enableReadAddressOpt = true;
+    config.ahbConfig.enableAHBCachable = true;
+    config.ahbConfig.enableClearAHBBufferOpt	= true;
+    config.rxSampleClock = FLEXSPI_RX_SAMPLE_CLOCK;
+    if(COMBINATION_MODE)
+    {
+        config.enableCombination = true;
+    }
+    if(FREE_RUNNING_MODE)
+    {
+        config.enableSckFreeRunning = true;
+    }
+    FLEXSPI_Init(base, &config);
+
+    /* Configure flash settings according to serial flash feature. */
+    FLEXSPI_SetFlashConfig(base, &deviceconfig, FLASH_PORT);
+
+    /* Update LUT table. */
+    FLEXSPI_UpdateLUT(base, 0, customLUT, CUSTOM_LUT_LENGTH);
+
+    /* Do software reset. */
+    FLEXSPI_SoftwareReset(base);
+
+    return 0;
+}
+INIT_DEVICE_EXPORT(rt_hw_imxrt_flexspi_init);
+
+#ifdef FLEXSPI_DEBUG
+#ifdef FINSH_USING_MSH
+
+#define FLEXSPI_DATALEN 4U
+static rt_uint32_t send_buf[FLEXSPI_DATALEN] = {0x11223344, 0x55667788, 0x12345678, 0x9900aabb};
+static uint32_t recv_buf[FLEXSPI_DATALEN];
+
+/* read write 32bit test */
+static void flexspi_test(void)
+{
+    volatile rt_uint32_t *flexspi = (rt_uint32_t *)FLEXSPI1_AHB_DATA_ADDRESS; /* FLEXSPI1 start address. */
+
+    LOG_D("FLEXSPI Memory 32 bit Write Start\n");
+    *(flexspi + 15) = send_buf[3];
+    *(flexspi + 8) = send_buf[1];
+    *(flexspi + 11) = send_buf[2];
+    *(flexspi + 3) = send_buf[0];
+    LOG_D("FLEXSPI Memory 32 bit Write End\n");
+
+    memset(recv_buf, 0, sizeof(recv_buf));
+    
+    LOG_D("FLEXSPI Memory 32 bit Read Start\n");
+    recv_buf[2] = *(flexspi + 11);
+    recv_buf[3] = *(flexspi + 15);
+    recv_buf[1] = *(flexspi + 8);
+    recv_buf[0] = *(flexspi + 3);
+    LOG_D("FLEXSPI Memory 32 bit Read End\n");
+
+    LOG_D("addr12 is 0x%x\n", recv_buf[0]);
+    LOG_D("addr32 is 0x%x\n", recv_buf[1]);
+    LOG_D("addr44 is 0x%x\n", recv_buf[2]);
+    LOG_D("addr60 is 0x%x\n", recv_buf[3]);
+}
+MSH_CMD_EXPORT(flexspi_test, flexspi test)
+
+#endif /* FLEXSPI_DEBUG */
+#endif /* FINSH_USING_MSH */
+#endif /* BSP_USING_FLEXSPI */