Commit graph

5 commits

Author SHA1 Message Date
chenjianqiang
90c7885f4d 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).
2019-07-02 14:57:13 +08:00
Angus Gratton
85e76a7cfc spiflash ROM functions: Remove Quad I/O mode enable/disable code from flash ROM functions
Confusion here is that original ROM has two functions:

* SPIReadModeCnfig() - sets mode, calls enable_qio_mode/disable_qio_mode
* SPIMasterReadModeCnfig() - As above, but doesn't set QIO mode in status register

However we never want to use the ROM method to set/clear QIO mode flag, as not all flash chips work this way. Instead we
do it in flash_qio_mode.c in bootloader.

So in both cases (ROM or "patched ROM") we now call SPIMasterReadModeCnfig(), which is now named
esp_rom_spiflash_config_readmode().
2017-04-13 17:54:42 +10:00
Alexey Gerenkov
0860f46220 spi_flash: Fixed bug in SPI flash ROM driver to work with embedded flash chip
1) fixed SPI_read_status: added check for flash busy flag in matrix mode
2) fixed SPI_page_program: enable write before writing data to SPI FIFO
3) SPI flash ROM funcs replacement is controlled via menuconfig option
2017-04-11 10:51:19 +08:00
Ivan Grokhotkov
81b18aa8d5 bootloader: move some functions out of IRAM when building in bootloader mode
Fixes https://github.com/espressif/esp-idf/issues/80
2016-11-08 20:17:08 +08:00
Angus Gratton
8e8caca2e2 Replace ROM SPIUnlock function with a version that can't lock flash
Avoid bug where a bad status read is copied back to flash and can set
lock bits.
2016-10-21 16:12:51 +11:00