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am437x u-boot中spi读写eeprom的问题



ti工程师们,

   我使用的是ti-processor-sdk-linux-rt-am437x-evm-03.02.00.05,想在u-boot中添加SPI读写eeprom,通过配置添加支持OMAP3 SPI,但是用u-boot的命令sspi总是显示:

=> sspi
Invalid bus 0 (err=-19)

spi eeprom挂在spi0,cs0上,请问如何配置使用?谢谢