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Searched refs:scbr (Results 1 – 3 of 3) sorted by relevance

/openbmc/u-boot/drivers/spi/
H A Datmel_spi.c41 unsigned int scbr; in spi_setup_slave() local
72 scbr = (get_spi_clk_rate(bus) + max_hz - 1) / max_hz; in spi_setup_slave()
73 if (scbr > ATMEL_SPI_CSRx_SCBR_MAX) in spi_setup_slave()
76 if (scbr < 1) in spi_setup_slave()
77 scbr = 1; in spi_setup_slave()
79 csrx = ATMEL_SPI_CSRx_SCBR(scbr); in spi_setup_slave()
245 u32 scbr, csrx, mode; in atmel_spi_claim_bus() local
247 scbr = (priv->bus_clk_rate + freq - 1) / freq; in atmel_spi_claim_bus()
248 if (scbr > ATMEL_SPI_CSRx_SCBR_MAX) in atmel_spi_claim_bus()
251 if (scbr < 1) in atmel_spi_claim_bus()
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/openbmc/linux/drivers/spi/
H A Datmel-quadspi.c526 u32 scbr; in atmel_qspi_setup() local
540 scbr = DIV_ROUND_UP(src_rate, spi->max_speed_hz); in atmel_qspi_setup()
541 if (scbr > 0) in atmel_qspi_setup()
542 scbr--; in atmel_qspi_setup()
549 aq->scr |= QSPI_SCR_SCBR(scbr); in atmel_qspi_setup()
H A Dspi-atmel.c880 u32 scbr, csr; in atmel_spi_set_xfer_speed() local
898 scbr = DIV_ROUND_UP(bus_hz, xfer->speed_hz); in atmel_spi_set_xfer_speed()
904 if (scbr >= (1 << SPI_SCBR_SIZE)) { in atmel_spi_set_xfer_speed()
907 xfer->speed_hz, scbr, bus_hz/255); in atmel_spi_set_xfer_speed()
910 if (scbr == 0) { in atmel_spi_set_xfer_speed()
913 xfer->speed_hz, scbr, bus_hz); in atmel_spi_set_xfer_speed()
917 csr = SPI_BFINS(SCBR, scbr, csr); in atmel_spi_set_xfer_speed()
919 xfer->effective_speed_hz = bus_hz / scbr; in atmel_spi_set_xfer_speed()