doc/SPI/README.ti_qspi_flash

1 QSPI U-Boot support
2 ------------------
4 Host processor is connected to serial flash device via qpsi
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.
27 1. Normal mode: use single pin for transfers
28 2. Dual Mode: use two pins for transfers.
29 3. Quad mode: use four pin for transfer
31 Memory mapped read mode
32 -----------------------
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.