Communication problem with SPI NAND flash memory (STM32L4, QSPI)

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I am trying to use an external flash memory (TC58CVG1S3HxAIx) with NUCLEO-L476RG board. I can’t get the QSPI to work. I used STM32CubeMx to configure QSPI: 

void MX_QUADSPI_Init(void)
{
 
  hqspi.Instance = QUADSPI;
  hqspi.Init.ClockPrescaler = 255;
  hqspi.Init.FifoThreshold = 1;
  hqspi.Init.SampleShifting = QSPI_SAMPLE_SHIFTING_NONE;
  hqspi.Init.FlashSize = 30;
  hqspi.Init.ChipSelectHighTime = QSPI_CS_HIGH_TIME_1_CYCLE;
  hqspi.Init.ClockMode = QSPI_CLOCK_MODE_0;
  if (HAL_QSPI_Init(&hqspi) != HAL_OK)
  {
    _Error_Handler(__FILE__, __LINE__);
  }
 
}
 
void HAL_QSPI_MspInit(QSPI_HandleTypeDef* qspiHandle)
{
 
  GPIO_InitTypeDef GPIO_InitStruct;
  if(qspiHandle->Instance==QUADSPI)
  {
  /* USER CODE BEGIN QUADSPI_MspInit 0 */
 
  /* USER CODE END QUADSPI_MspInit 0 */
    /* QUADSPI clock enable */
    __HAL_RCC_QSPI_CLK_ENABLE();
  
 
    /**QUADSPI GPIO Configuration    
    PA6     ------> QUADSPI_BK1_IO3
    PA7     ------> QUADSPI_BK1_IO2
    PB0     ------> QUADSPI_BK1_IO1
    PB1     ------> QUADSPI_BK1_IO0
    PB10     ------> QUADSPI_CLK
    PB11     ------> QUADSPI_NCS 
    */
    GPIO_InitStruct.Pin = 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_AF10_QUADSPI;
    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
 
    GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_10|GPIO_PIN_11;
    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
    GPIO_InitStruct.Pull = GPIO_NOPULL;
    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
    GPIO_InitStruct.Alternate = GPIO_AF10_QUADSPI;
    HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
 
  /* USER CODE BEGIN QUADSPI_MspInit 1 */
 
  /* USER CODE END QUADSPI_MspInit 1 */
  }
}

And I wrote a simple program to get id from the flash memory:

#include "main.h"
#include "stm32l4xx_hal.h"
#include "quadspi.h"
#include "gpio.h"
 
uint8_t ReadAddr = 0x9F;
uint8_t pBuffer[3];
 
int main(void)
{
 HAL_Init();
 SystemClock_Config();
 MX_GPIO_Init();
 MX_QUADSPI_Init();
 
  while (1)
  {
   HAL_QSPI_Transmit(&hqspi, &ReadAddr, 5);
   HAL_QSPI_Receive(&hqspi, pBuffer, 5);
  }
 }

The qspi clock doesn’t work. I checked on the oscilloscope and all I see is a straight line. If I change the qspi clock mode to high the problem is still there, but I see the line on 3V not 0V. The CS signal works, on the oscilloscope I can clearly see the time when uC should transmit and receive.

I checked AHB3ENR register and it is properly initialized. I have no idea what else could be wrong.

Could somebody help me?