xtensa/esp32s3: Add timing delay set interface for QSPI

arch/xtensa/src/esp32s3/esp32s3_qspi.c

@@ -1529,6 +1529,56 @@ int esp32s3_qspibus_set_attr(struct qspi_dev_s *dev,
   return OK;
 }
 
+/****************************************************************************
+ * Name: esp32s3_qspibus_set_delay
+ *
+ * Description:
+ *   Set timing delay for QSPI input and output data.
+ *
+ * Input Parameters:
+ *   dev        - Device-specific state data
+ *   din_mode   - Input mode(0~3) to delay input data
+ *   din_num    - The delay number(0~3) to input data
+ *   dout_mode  - Output mode(0,1) to delay output data
+ *
+ * Returned Value:
+ *   Zero (OK) is returned on success.  Otherwise -1 (ERROR).
+ *
+ ****************************************************************************/
+
+int esp32s3_qspibus_set_delay(struct qspi_dev_s *dev,
+                              uint8_t din_mode,
+                              uint8_t din_num,
+                              uint8_t dout_mode)
+{
+  struct esp32s3_qspi_priv_s *priv = (struct esp32s3_qspi_priv_s *)dev;
+  uint8_t id = priv->config->id;
+
+  if ((din_mode > 3) || (din_num > 3) || (dout_mode > 1))
+    {
+      return -1;
+    }
+
+  uint32_t din_mode_reg = (din_mode << SPI_DIN0_MODE_S) |
+                          (din_mode << SPI_DIN1_MODE_S) |
+                          (din_mode << SPI_DIN2_MODE_S) |
+                          (din_mode << SPI_DIN3_MODE_S);
+  uint32_t din_num_reg = (din_num << SPI_DIN0_NUM_S) |
+                         (din_num << SPI_DIN1_NUM_S) |
+                         (din_num << SPI_DIN2_NUM_S) |
+                         (din_num << SPI_DIN3_NUM_S);
+  uint32_t dout_mode_reg = (dout_mode << SPI_DOUT0_MODE_S) |
+                           (dout_mode << SPI_DOUT1_MODE_S) |
+                           (dout_mode << SPI_DOUT2_MODE_S) |
+                           (dout_mode << SPI_DOUT3_MODE_S);
+
+  putreg32(din_mode_reg, SPI_DIN_MODE_REG(id));
+  putreg32(din_num_reg, SPI_DIN_NUM_REG(id));
+  putreg32(dout_mode_reg, SPI_DOUT_MODE_REG(id));
+
+  return 0;
+}
+
 /****************************************************************************
  * Name: esp32s3_qspibus_initialize
  *

arch/xtensa/src/esp32s3/esp32s3_qspi.h

@@ -84,6 +84,28 @@ int esp32s3_qspibus_set_attr(struct qspi_dev_s *dev,
                              uint8_t addr_lines,
                              uint8_t data_lines);
 
+/****************************************************************************
+ * Name: esp32s3_qspibus_set_delay
+ *
+ * Description:
+ *   Set timing delay for QSPI input and output data.
+ *
+ * Input Parameters:
+ *   dev        - Device-specific state data
+ *   din_mode   - Input mode(0~3) to delay input data
+ *   din_num    - The delay number(0~3) to input data
+ *   dout_mode  - Output mode(0,1) to delay output data
+ *
+ * Returned Value:
+ *   Zero (OK) is returned on success.  Otherwise -1 (ERROR).
+ *
+ ****************************************************************************/
+
+int esp32s3_qspibus_set_delay(struct qspi_dev_s *dev,
+                              uint8_t din_mode,
+                              uint8_t din_num,
+                              uint8_t dout_mode);
+
 /****************************************************************************
  * Name: esp32s3_qspibus_initialize
  *