bugfix(flash): improve flash dio read timing

When flash work in DIO Mode, in order to ensure the fast read mode of flash
is a fixed value, we merged the mode bits into address part, and the fast
read mode value is 0 (the default value).

diff --git a/components/bootloader_support/src/bootloader_init.c b/components/bootloader_support/src/bootloader_init.c
index 295f11c322dd31ed517d3c4e2b4ab9a0f04cb9ba..f22cdc9ae2e2cdfac9feb342c5ef7f023fbf34bc 100644 (file)
--- a/components/bootloader_support/src/bootloader_init.c
+++ b/components/bootloader_support/src/bootloader_init.c
@@ -306,10 +306,11 @@ static void IRAM_ATTR flash_gpio_configure(const esp_image_header_t* pfhdr)
     int drv = 2;
     switch (pfhdr->spi_mode) {
         case ESP_IMAGE_SPI_MODE_QIO:
-            spi_cache_dummy = SPI0_R_DIO_DUMMY_CYCLELEN;
+            spi_cache_dummy = SPI0_R_QIO_DUMMY_CYCLELEN;
             break;
         case ESP_IMAGE_SPI_MODE_DIO:
-            spi_cache_dummy = SPI0_R_DIO_DUMMY_CYCLELEN;   //qio 3
+            spi_cache_dummy = SPI0_R_DIO_DUMMY_CYCLELEN;
+            SET_PERI_REG_BITS(SPI_USER1_REG(0), SPI_USR_ADDR_BITLEN_V, SPI0_R_DIO_ADDR_BITSLEN, SPI_USR_ADDR_BITLEN_S);
             break;
         case ESP_IMAGE_SPI_MODE_QOUT:
         case ESP_IMAGE_SPI_MODE_DOUT:

diff --git a/components/esp32/include/rom/spi_flash.h b/components/esp32/include/rom/spi_flash.h
index cc9856f45550196346357b81815069f68d276c4d..165aaefe66bffbf2bf950ca505550d2051560092 100644 (file)
--- a/components/esp32/include/rom/spi_flash.h
+++ b/components/esp32/include/rom/spi_flash.h
@@ -86,7 +86,8 @@ extern "C" {
 #define SPI0_R_QIO_DUMMY_CYCLELEN             3
 #define SPI0_R_QIO_ADDR_BITSLEN               31
 #define SPI0_R_FAST_DUMMY_CYCLELEN            7
-#define SPI0_R_DIO_DUMMY_CYCLELEN             3
+#define SPI0_R_DIO_DUMMY_CYCLELEN             1
+#define SPI0_R_DIO_ADDR_BITSLEN               27
 #define SPI0_R_FAST_ADDR_BITSLEN              23
 #define SPI0_R_SIO_ADDR_BITSLEN               23
 

diff --git a/components/esp32/spiram_psram.c b/components/esp32/spiram_psram.c
index 7795aa6be1e7e7eef6ce8cfc3a595eaa30b0a3e5..a7c4e3e9e0a907cad646d02d63f999831dfbdb9a 100644 (file)
--- a/components/esp32/spiram_psram.c
+++ b/components/esp32/spiram_psram.c
@@ -446,9 +446,11 @@ static void IRAM_ATTR psram_gpio_config(psram_cache_mode_t mode)
 {
     int spi_cache_dummy = 0;
     uint32_t rd_mode_reg = READ_PERI_REG(SPI_CTRL_REG(0));
-    if (rd_mode_reg & (SPI_FREAD_QIO_M | SPI_FREAD_DIO_M)) {
+    if (rd_mode_reg & SPI_FREAD_QIO_M) {
         spi_cache_dummy = SPI0_R_QIO_DUMMY_CYCLELEN;
-    } else if (rd_mode_reg & (SPI_FREAD_QUAD_M | SPI_FREAD_DUAL_M)) {
+    } else if (rd_mode_reg & SPI_FREAD_DIO_M) {
+        spi_cache_dummy = SPI0_R_DIO_DUMMY_CYCLELEN;
+    }  else if (rd_mode_reg & (SPI_FREAD_QUAD_M | SPI_FREAD_DUAL_M)) {
         spi_cache_dummy = SPI0_R_FAST_DUMMY_CYCLELEN;
     } else {
         spi_cache_dummy = SPI0_R_FAST_DUMMY_CYCLELEN;

diff --git a/components/spi_flash/spi_flash_rom_patch.c b/components/spi_flash/spi_flash_rom_patch.c
index ec59a1ff195c0469e6883474683bde5e76ab34d6..2d585ba440b1c957f07eb21bd36bd7f6e374e292 100644 (file)
--- a/components/spi_flash/spi_flash_rom_patch.c
+++ b/components/spi_flash/spi_flash_rom_patch.c
@@ -322,6 +322,7 @@ static void spi_cache_mode_switch(uint32_t  modebit)
             REG_SET_FIELD(SPI_USER2_REG(0), SPI_USR_COMMAND_VALUE, 0x6B);
             REG_SET_FIELD(SPI_USER1_REG(0), SPI_USR_DUMMY_CYCLELEN, SPI0_R_FAST_DUMMY_CYCLELEN + g_rom_spiflash_dummy_len_plus[0]);
         } else if ((modebit & SPI_FREAD_DIO)) {
+            REG_SET_FIELD(SPI_USER1_REG(0), SPI_USR_ADDR_BITLEN, SPI0_R_DIO_ADDR_BITSLEN);
             REG_SET_FIELD(SPI_USER1_REG(0), SPI_USR_DUMMY_CYCLELEN, SPI0_R_DIO_DUMMY_CYCLELEN + g_rom_spiflash_dummy_len_plus[0]);
             REG_SET_FIELD(SPI_USER2_REG(0), SPI_USR_COMMAND_VALUE, 0xBB);
         } else if ((modebit & SPI_FREAD_DUAL)) {