QSPI_SPBR_MIN     534 drivers/spi/spi-bcm-qspi.c 	spcr = clamp_val(spbr, QSPI_SPBR_MIN, QSPI_SPBR_MAX);
QSPI_SPBR_MIN    1347 drivers/spi/spi-bcm-qspi.c 	qspi->max_speed_hz = qspi->base_clk / (QSPI_SPBR_MIN * 2);