| Joe Hershberger | 22e04fa | 2015-06-22 16:15:24 -0500 | [diff] [blame] | 1 | config SPI_FLASH |
| 2 | bool "Enable SPI Flash support" |
| 3 | help |
| 4 | Enable the legacy SPI flash support. This will include basic |
| 5 | standard support for things like probing, read / write, and |
| 6 | erasing through the MTD layer. |
| 7 | |
| 8 | If unsure, say N |
| 9 | |
| Simon Glass | f94a1be | 2015-02-05 21:41:35 -0700 | [diff] [blame] | 10 | config DM_SPI_FLASH |
| 11 | bool "Enable Driver Model for SPI flash" |
| Masahiro Yamada | b3d023b | 2015-03-31 12:47:52 +0900 | [diff] [blame] | 12 | depends on DM && DM_SPI |
| Simon Glass | f94a1be | 2015-02-05 21:41:35 -0700 | [diff] [blame] | 13 | help |
| 14 | Enable driver model for SPI flash. This SPI flash interface |
| 15 | (spi_flash_probe(), spi_flash_write(), etc.) is then |
| 16 | implemented by the SPI flash uclass. There is one standard |
| 17 | SPI flash driver which knows how to probe most chips |
| 18 | supported by U-Boot. The uclass interface is defined in |
| 19 | include/spi_flash.h, but is currently fully compatible |
| 20 | with the old interface to avoid confusion and duplication |
| 21 | during the transition parent. SPI and SPI flash must be |
| 22 | enabled together (it is not possible to use driver model |
| 23 | for one and not the other). |
| Simon Glass | 949dd81 | 2015-03-06 13:19:06 -0700 | [diff] [blame] | 24 | |
| 25 | config SPI_FLASH_SANDBOX |
| 26 | bool "Support sandbox SPI flash device" |
| 27 | depends on SANDBOX && DM_SPI_FLASH |
| 28 | help |
| 29 | Since sandbox cannot access real devices, an emulation mechanism is |
| 30 | provided instead. Drivers can be connected up to the sandbox SPI |
| 31 | bus (see CONFIG_SANDBOX_SPI) and SPI traffic will be routed to this |
| 32 | device. Typically the contents of the emulated SPI flash device is |
| 33 | stored in a file on the host filesystem. |