alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2025-08-12 13:27:36 +00:00
Code Issues Packages Projects Releases Wiki Activity

bugfix(flash): improve flash dio read timing

Browse Source 
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).
This commit is contained in:
chenjianqiang
2019-05-20 15:26:52 +08:00
parent 801f5d6e82
commit d68f1907ef
4 changed files with 10 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
components/bootloader_support/src/bootloader_init.c
View File

@@ -321,10 +321,11 @@ 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: