alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2025-08-09 04:25:32 +00:00
Code Issues Packages Projects Releases Wiki Activity

bootloader: Add QIO support for ESP32-D2WD SPI flash

Browse Source
This commit is contained in:
Angus Gratton
2017-04-13 17:08:53 +10:00
committed by Angus Gratton
parent 85e76a7cfc
commit f7793840e1
5 changed files with 75 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
components/esp32/include/rom/spi_flash.h
View File

@@ -512,6 +512,24 @@ esp_rom_spiflash_result_t esp_rom_spiflash_write_encrypted(uint32_t flash_addr,
esp_rom_spiflash_result_t esp_rom_spiflash_wait_idle(esp_rom_spiflash_chip_t *spi);
/** @brief Enable Quad I/O pin functions
*
* @note Please do not call this function in SDK.
*
* Sets the HD & WP pin functions for Quad I/O modes, based on the
* efuse SPI pin configuration.
*
* @param wp_gpio_num - Number of the WP pin to reconfigure for quad I/O.
*
* @param spiconfig - Pin configuration, as returned from ets_efuse_get_spiconfig().
* - If this parameter is 0, default SPI pins are used and wp_gpio_num parameter is ignored.
* - If this parameter is 1, default HSPI pins are used and wp_gpio_num parameter is ignored.
* - For other values, this parameter encodes the HD pin number and also the CLK pin number. CLK pin selection is used
* to determine if HSPI or SPI peripheral will be used (use HSPI if CLK pin is the HSPI clock pin, otherwise use SPI).
* Both HD & WP pins are configured via GPIO matrix to map to the selected peripheral.
*/
void esp_rom_spiflash_select_qio_pins(uint8_t wp_gpio_num, uint32_t spiconfig);
/** @brief Global esp_rom_spiflash_chip_t structure used by ROM functions
*
*/