doc/SPI/README.ti_qspi_flash

1 QSPI U-Boot support
2 ------------------
4 Host processor is connected to serial flash device via qpsi
5 interface. QSPI is a kind of spi module that allows single,
6 dual and quad read access to external spi devices. The module
8 for accessing data form external spi devices.
11 from Quad SPI flash devices.
14 -------
16 MLO/u-boot.img will be flashed from SD/MMC to the flash device
17 using serial flash erase and write commands. Then, switch settings
19 from the predefined location in the flash, where it was flashed and
21 u-boot.img from flash and execute it from SDRAM.
23 SPI mode
24 -------
25 SPI mode uses mtd spi framework for transfer and reception of data.
32 -----------------------
33 In this, SPI controller is configured using configuration port and then
37 ------
39     - Newly created file which is responsible for configuring the
42 	to flash device and vice versa.
45 -------
47 details about the commands required to test qspi at U-Boot level.