rt-thread/bsp/stm32f429-armfly/drivers/drv_sdram.c

/*
 * Copyright (c) 2006-2018, RT-Thread Development Team
 *
 * SPDX-License-Identifier: Apache-2.0
 *
 * Change Logs:
 * Date           Author       Notes
 * 2017-08-17     Tanek        first implementation
 */

#include <rtthread.h>
#include "stm32f4xx_hal.h"

#define SDRAM_MODEREG_BURST_LENGTH_1             ((uint16_t)0x0000)
#define SDRAM_MODEREG_BURST_LENGTH_2             ((uint16_t)0x0001)
#define SDRAM_MODEREG_BURST_LENGTH_4             ((uint16_t)0x0002)
#define SDRAM_MODEREG_BURST_LENGTH_8             ((uint16_t)0x0004)
#define SDRAM_MODEREG_BURST_TYPE_SEQUENTIAL      ((uint16_t)0x0000)
#define SDRAM_MODEREG_BURST_TYPE_INTERLEAVED     ((uint16_t)0x0008)
#define SDRAM_MODEREG_CAS_LATENCY_2              ((uint16_t)0x0020)
#define SDRAM_MODEREG_CAS_LATENCY_3              ((uint16_t)0x0030)
#define SDRAM_MODEREG_OPERATING_MODE_STANDARD    ((uint16_t)0x0000)
#define SDRAM_MODEREG_WRITEBURST_MODE_PROGRAMMED ((uint16_t)0x0000) 
#define SDRAM_MODEREG_WRITEBURST_MODE_SINGLE     ((uint16_t)0x0200)

#define BUFFER_SIZE         ((uint32_t)0x0100)
#define WRITE_READ_ADDR     ((uint32_t)0x0800)
#define REFRESH_COUNT       ((uint32_t)0x0569)   /* SDRAM refresh counter (90MHz SDRAM clock) */

static FMC_SDRAM_CommandTypeDef command;
static SDRAM_HandleTypeDef hsdram1;
static FMC_SDRAM_TimingTypeDef SdramTiming;

static void HAL_FMC_MspInit(void)
{
    GPIO_InitTypeDef GPIO_InitStruct;
    /* Peripheral clock enable */
    __HAL_RCC_FMC_CLK_ENABLE();
      /* GPIO Ports Clock Enable */
    __HAL_RCC_GPIOD_CLK_ENABLE();
    __HAL_RCC_GPIOE_CLK_ENABLE();
    __HAL_RCC_GPIOF_CLK_ENABLE();
    __HAL_RCC_GPIOG_CLK_ENABLE();
    __HAL_RCC_GPIOH_CLK_ENABLE();
    __HAL_RCC_GPIOI_CLK_ENABLE();

    /** FMC GPIO Configuration  
    PI9   ------> FMC_D30
    PI10   ------> FMC_D31
    PF0   ------> FMC_A0
    PF1   ------> FMC_A1
    PF2   ------> FMC_A2
    PF3   ------> FMC_A3
    PF4   ------> FMC_A4
    PF5   ------> FMC_A5
    PH2   ------> FMC_SDCKE0
    PH3   ------> FMC_SDNE0
    PH5   ------> FMC_SDNWE
    PF11   ------> FMC_SDNRAS
    PF12   ------> FMC_A6
    PF13   ------> FMC_A7
    PF14   ------> FMC_A8
    PF15   ------> FMC_A9
    PG0   ------> FMC_A10
    PG1   ------> FMC_A11
    PE7   ------> FMC_D4
    PE8   ------> FMC_D5
    PE9   ------> FMC_D6
    PE10   ------> FMC_D7
    PE11   ------> FMC_D8
    PE12   ------> FMC_D9
    PE13   ------> FMC_D10
    PE14   ------> FMC_D11
    PE15   ------> FMC_D12
    PH8   ------> FMC_D16
    PH9   ------> FMC_D17
    PH10   ------> FMC_D18
    PH11   ------> FMC_D19
    PH12   ------> FMC_D20
    PD8   ------> FMC_D13
    PD9   ------> FMC_D14
    PD10   ------> FMC_D15
    PD14   ------> FMC_D0
    PD15   ------> FMC_D1
    PG4   ------> FMC_BA0
    PG5   ------> FMC_BA1
    PG8   ------> FMC_SDCLK
    PH13   ------> FMC_D21
    PH14   ------> FMC_D22
    PH15   ------> FMC_D23
    PI0   ------> FMC_D24
    PI1   ------> FMC_D25
    PI2   ------> FMC_D26
    PI3   ------> FMC_D27
    PD0   ------> FMC_D2
    PD1   ------> FMC_D3
    PG15   ------> FMC_SDNCAS
    PE0   ------> FMC_NBL0
    PE1   ------> FMC_NBL1
    PI4   ------> FMC_NBL2
    PI5   ------> FMC_NBL3
    PI6   ------> FMC_D28
    PI7   ------> FMC_D29
    */
    GPIO_InitStruct.Pin = GPIO_PIN_9|GPIO_PIN_10|GPIO_PIN_0|GPIO_PIN_1 
                          |GPIO_PIN_2|GPIO_PIN_3|GPIO_PIN_4|GPIO_PIN_5 
                          |GPIO_PIN_6|GPIO_PIN_7;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF12_FMC;
    HAL_GPIO_Init(GPIOI, &GPIO_InitStruct);

    GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3 
                          |GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_11|GPIO_PIN_12 
                          |GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF12_FMC;
    HAL_GPIO_Init(GPIOF, &GPIO_InitStruct);

    GPIO_InitStruct.Pin = GPIO_PIN_2|GPIO_PIN_3|GPIO_PIN_5|GPIO_PIN_8 
                          |GPIO_PIN_9|GPIO_PIN_10|GPIO_PIN_11|GPIO_PIN_12 
                          |GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF12_FMC;
    HAL_GPIO_Init(GPIOH, &GPIO_InitStruct);

    GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_4|GPIO_PIN_5 
                          |GPIO_PIN_8|GPIO_PIN_15;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF12_FMC;
    HAL_GPIO_Init(GPIOG, &GPIO_InitStruct);

    GPIO_InitStruct.Pin = GPIO_PIN_7|GPIO_PIN_8|GPIO_PIN_9|GPIO_PIN_10 
                          |GPIO_PIN_11|GPIO_PIN_12|GPIO_PIN_13|GPIO_PIN_14 
                          |GPIO_PIN_15|GPIO_PIN_0|GPIO_PIN_1;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF12_FMC;
    HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);

    GPIO_InitStruct.Pin = GPIO_PIN_8|GPIO_PIN_9|GPIO_PIN_10|GPIO_PIN_14 
                          |GPIO_PIN_15|GPIO_PIN_0|GPIO_PIN_1;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF12_FMC;
    HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
}

void HAL_SDRAM_MspInit(SDRAM_HandleTypeDef* hsdram){
    HAL_FMC_MspInit();
}

static void HAL_FMC_MspDeInit(void)
{
    /* Peripheral clock enable */
    __HAL_RCC_FMC_CLK_DISABLE();

    /** FMC GPIO Configuration  
    PI9   ------> FMC_D30
    PI10   ------> FMC_D31
    PF0   ------> FMC_A0
    PF1   ------> FMC_A1
    PF2   ------> FMC_A2
    PF3   ------> FMC_A3
    PF4   ------> FMC_A4
    PF5   ------> FMC_A5
    PH2   ------> FMC_SDCKE0
    PH3   ------> FMC_SDNE0
    PH5   ------> FMC_SDNWE
    PF11   ------> FMC_SDNRAS
    PF12   ------> FMC_A6
    PF13   ------> FMC_A7
    PF14   ------> FMC_A8
    PF15   ------> FMC_A9
    PG0   ------> FMC_A10
    PG1   ------> FMC_A11
    PE7   ------> FMC_D4
    PE8   ------> FMC_D5
    PE9   ------> FMC_D6
    PE10   ------> FMC_D7
    PE11   ------> FMC_D8
    PE12   ------> FMC_D9
    PE13   ------> FMC_D10
    PE14   ------> FMC_D11
    PE15   ------> FMC_D12
    PH8   ------> FMC_D16
    PH9   ------> FMC_D17
    PH10   ------> FMC_D18
    PH11   ------> FMC_D19
    PH12   ------> FMC_D20
    PD8   ------> FMC_D13
    PD9   ------> FMC_D14
    PD10   ------> FMC_D15
    PD14   ------> FMC_D0
    PD15   ------> FMC_D1
    PG4   ------> FMC_BA0
    PG5   ------> FMC_BA1
    PG8   ------> FMC_SDCLK
    PH13   ------> FMC_D21
    PH14   ------> FMC_D22
    PH15   ------> FMC_D23
    PI0   ------> FMC_D24
    PI1   ------> FMC_D25
    PI2   ------> FMC_D26
    PI3   ------> FMC_D27
    PD0   ------> FMC_D2
    PD1   ------> FMC_D3
    PG15   ------> FMC_SDNCAS
    PE0   ------> FMC_NBL0
    PE1   ------> FMC_NBL1
    PI4   ------> FMC_NBL2
    PI5   ------> FMC_NBL3
    PI6   ------> FMC_D28
    PI7   ------> FMC_D29
    */
    HAL_GPIO_DeInit(GPIOI, GPIO_PIN_9|GPIO_PIN_10|GPIO_PIN_0|GPIO_PIN_1 
                          |GPIO_PIN_2|GPIO_PIN_3|GPIO_PIN_4|GPIO_PIN_5 
                          |GPIO_PIN_6|GPIO_PIN_7);

    HAL_GPIO_DeInit(GPIOF, GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3 
                          |GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_11|GPIO_PIN_12 
                          |GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15);

    HAL_GPIO_DeInit(GPIOH, GPIO_PIN_2|GPIO_PIN_3|GPIO_PIN_5|GPIO_PIN_8 
                          |GPIO_PIN_9|GPIO_PIN_10|GPIO_PIN_11|GPIO_PIN_12 
                          |GPIO_PIN_13|GPIO_PIN_14|GPIO_PIN_15);

    HAL_GPIO_DeInit(GPIOG, GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_4|GPIO_PIN_5 
                          |GPIO_PIN_8|GPIO_PIN_15);

    HAL_GPIO_DeInit(GPIOE, GPIO_PIN_7|GPIO_PIN_8|GPIO_PIN_9|GPIO_PIN_10 
                          |GPIO_PIN_11|GPIO_PIN_12|GPIO_PIN_13|GPIO_PIN_14 
                          |GPIO_PIN_15|GPIO_PIN_0|GPIO_PIN_1);

    HAL_GPIO_DeInit(GPIOD, GPIO_PIN_8|GPIO_PIN_9|GPIO_PIN_10|GPIO_PIN_14 
                          |GPIO_PIN_15|GPIO_PIN_0|GPIO_PIN_1);
}

void HAL_SDRAM_MspDeInit(SDRAM_HandleTypeDef* hsdram)
{
    HAL_FMC_MspDeInit();
}

/**
  * @brief  Perform the SDRAM exernal memory inialization sequence
  * @param  hsdram: SDRAM handle
  * @param  Command: Pointer to SDRAM command structure
  * @retval None
  */
static void SDRAM_Initialization_Sequence(SDRAM_HandleTypeDef *hsdram, FMC_SDRAM_CommandTypeDef *Command)
{
    __IO uint32_t tmpmrd =0;
    /* Step 3:  Configure a clock configuration enable command */
    Command->CommandMode 	        = FMC_SDRAM_CMD_CLK_ENABLE;
    Command->CommandTarget 		    = FMC_SDRAM_CMD_TARGET_BANK1;
    Command->AutoRefreshNumber 	    = 1;
    Command->ModeRegisterDefinition = 0;

    /* Send the command */
    HAL_SDRAM_SendCommand(hsdram, Command, 0x1000);

    /* Step 4: Insert 100 ms delay */
    //HAL_Delay(100);
    for (tmpmrd = 0; tmpmrd < 0xfffff; tmpmrd ++)
        ;

    /* Step 5: Configure a PALL (precharge all) command */ 
    Command->CommandMode 	        = FMC_SDRAM_CMD_PALL;
    Command->CommandTarget 	        = FMC_SDRAM_CMD_TARGET_BANK1;
    Command->AutoRefreshNumber 	    = 1;
    Command->ModeRegisterDefinition = 0;

    /* Send the command */
    HAL_SDRAM_SendCommand(hsdram, Command, 0x1000);  

    /* Step 6 : Configure a Auto-Refresh command */ 
    Command->CommandMode 			= FMC_SDRAM_CMD_AUTOREFRESH_MODE;
    Command->CommandTarget 		    = FMC_SDRAM_CMD_TARGET_BANK1;
    Command->AutoRefreshNumber 	    = 8;
    Command->ModeRegisterDefinition = 0;

    /* Send the command */
    HAL_SDRAM_SendCommand(hsdram, Command, 0x1000);

    /* Step 7: Program the external memory mode register */
    tmpmrd = (uint32_t)SDRAM_MODEREG_BURST_LENGTH_1          |
                     SDRAM_MODEREG_BURST_TYPE_SEQUENTIAL   |
                     SDRAM_MODEREG_CAS_LATENCY_3           |
                     SDRAM_MODEREG_OPERATING_MODE_STANDARD |
                     SDRAM_MODEREG_WRITEBURST_MODE_SINGLE;

    Command->CommandMode = FMC_SDRAM_CMD_LOAD_MODE;
    Command->CommandTarget 		 = FMC_SDRAM_CMD_TARGET_BANK1;
    Command->AutoRefreshNumber 	 = 1;
    Command->ModeRegisterDefinition = tmpmrd;

    /* Send the command */
    HAL_SDRAM_SendCommand(hsdram, Command, 0x1000);

    /* Step 8: Set the refresh rate counter */
    /* (15.62 us x Freq) - 20 */
    /* Set the device refresh counter */
    HAL_SDRAM_ProgramRefreshRate(hsdram, REFRESH_COUNT); 
}

int stm32_hw_0_sdram_init(void)
{

    /** Perform the SDRAM1 memory initialization sequence
    */
    hsdram1.Instance = FMC_SDRAM_DEVICE;
    /* hsdram1.Init */
    hsdram1.Init.SDBank = FMC_SDRAM_BANK1;
    hsdram1.Init.ColumnBitsNumber = FMC_SDRAM_COLUMN_BITS_NUM_8;
    hsdram1.Init.RowBitsNumber = FMC_SDRAM_ROW_BITS_NUM_12;
    hsdram1.Init.MemoryDataWidth = FMC_SDRAM_MEM_BUS_WIDTH_32;
    hsdram1.Init.InternalBankNumber = FMC_SDRAM_INTERN_BANKS_NUM_4;
    hsdram1.Init.CASLatency = FMC_SDRAM_CAS_LATENCY_3;
    hsdram1.Init.WriteProtection = FMC_SDRAM_WRITE_PROTECTION_DISABLE;
    hsdram1.Init.SDClockPeriod = FMC_SDRAM_CLOCK_PERIOD_2;
    hsdram1.Init.ReadBurst = FMC_SDRAM_RBURST_ENABLE;
    hsdram1.Init.ReadPipeDelay = FMC_SDRAM_RPIPE_DELAY_1;
    /* SdramTiming */
    SdramTiming.LoadToActiveDelay = 2;
    SdramTiming.ExitSelfRefreshDelay = 7;
    SdramTiming.SelfRefreshTime = 2;
    SdramTiming.RowCycleDelay = 4;
    SdramTiming.WriteRecoveryTime = 2;
    SdramTiming.RPDelay = 2;
    SdramTiming.RCDDelay = 2;

    if (HAL_SDRAM_Init(&hsdram1, &SdramTiming) != HAL_OK)
    {
        RT_ASSERT(RT_NULL);
    }
    
    SDRAM_Initialization_Sequence(&hsdram1, &command);
    
    return 0;
}
INIT_BOARD_EXPORT(stm32_hw_0_sdram_init);