M_SPI23
K_MMUX(M_SPI23, RCC_SPI2S23CKSELR, 0, 3, 0),
KCLK(SPI2_K, "spi2_k", spi123_src, 0, G_SPI2, M_SPI23),
KCLK(SPI3_K, "spi3_k", spi123_src, 0, G_SPI3, M_SPI23),