2 bool "Enable Driver Model for SPI drivers"
5 Enable driver model for SPI. The SPI slave interface
6 (spi_setup_slave(), spi_xfer(), etc.) is then implemented by
7 the SPI uclass. Drivers provide methods to access the SPI
8 buses that they control. The uclass interface is defined in
9 include/spi.h. The existing spi_slave structure is attached
10 as 'parent data' to every slave on each bus. Slaves
11 typically use driver-private data instead of extending the
15 bool "Sandbox SPI driver"
16 depends on SANDBOX && DM
18 Enable SPI support for sandbox. This is an emulation of a real SPI
19 bus. Devices can be attached to the bus using the device tree
20 which specifies the driver to use. As an example, see this device
21 tree fragment from sandbox.dts. It shows that the SPI bus has a
22 single flash device on chip select 0 which is emulated by the driver
23 for "sandbox,spi-flash", which is in drivers/mtd/spi/sandbox.c.
29 compatible = "sandbox,spi";
30 cs-gpios = <0>, <&gpio_a 0>;
33 compatible = "spansion,m25p16", "sandbox,spi-flash";
34 spi-max-frequency = <40000000>;
35 sandbox,filename = "spi.bin";