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am3352 spi clock无输出

这几天移植 PROCESSOR-SDK-LINUX-RT-AM335X ,在移植spi设备驱动时发现spidev->rx_buffer 读出数据全为0xff,跟踪设备及总线驱动代码未找出问题,也有/dev/spidev1.0,menuconfig配置无问题,示波器看到spi0 sclk无输出,判断是否设备树配置或其他问题,请大神指教。硬件确认无问题,SDK 6.0正常。