查看F1C的源代码

=== Notes ===

查看 DTS 中对应的设备用了哪些关键字：

<source lang=bash>
$ grep -r of_property drivers/spi/ | grep spi-max-frequency
</source>


'''SPI:'''

SPI_SCLK: 3KHz ~ 100MHz
* SPI Nor Flash: spi-max-frequency = <50000000>; (50MHz)
* SPI 127x: spi-max-frequency = <10000000>;

<source lang=bash>
# CONFIG_SPI_SUN4I is not set
CONFIG_SPI_SUN6I=y
</source>

<source lang=bash>
drivers/spi/spi-bitbang.o
drivers/spi/spidev.o
drivers/spi/spi-gpio.o
drivers/spi/spi.o
drivers/spi/spi-sun6i.o
</source>

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