Home
last modified time | relevance | path

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

/OK3568_Linux_fs/u-boot/drivers/spi/
H A Datmel_spi.c49 unsigned int scbr; in spi_setup_slave() local
80 scbr = (get_spi_clk_rate(bus) + max_hz - 1) / max_hz; in spi_setup_slave()
81 if (scbr > ATMEL_SPI_CSRx_SCBR_MAX) in spi_setup_slave()
84 if (scbr < 1) in spi_setup_slave()
85 scbr = 1; in spi_setup_slave()
87 csrx = ATMEL_SPI_CSRx_SCBR(scbr); in spi_setup_slave()
253 u32 scbr, csrx, mode; in atmel_spi_claim_bus() local
255 scbr = (priv->bus_clk_rate + freq - 1) / freq; in atmel_spi_claim_bus()
256 if (scbr > ATMEL_SPI_CSRx_SCBR_MAX) in atmel_spi_claim_bus()
259 if (scbr < 1) in atmel_spi_claim_bus()
[all …]
/OK3568_Linux_fs/kernel/drivers/spi/
H A Datmel-quadspi.c483 u32 scbr; in atmel_qspi_setup() local
496 scbr = DIV_ROUND_UP(src_rate, spi->max_speed_hz); in atmel_qspi_setup()
497 if (scbr > 0) in atmel_qspi_setup()
498 scbr--; in atmel_qspi_setup()
500 aq->scr = QSPI_SCR_SCBR(scbr); in atmel_qspi_setup()
H A Dspi-atmel.c821 u32 scbr, csr; in atmel_spi_set_xfer_speed() local
839 scbr = DIV_ROUND_UP(bus_hz, xfer->speed_hz); in atmel_spi_set_xfer_speed()
845 if (scbr >= (1 << SPI_SCBR_SIZE)) { in atmel_spi_set_xfer_speed()
848 xfer->speed_hz, scbr, bus_hz/255); in atmel_spi_set_xfer_speed()
851 if (scbr == 0) { in atmel_spi_set_xfer_speed()
854 xfer->speed_hz, scbr, bus_hz); in atmel_spi_set_xfer_speed()
858 csr = SPI_BFINS(SCBR, scbr, csr); in atmel_spi_set_xfer_speed()
860 xfer->effective_speed_hz = bus_hz / scbr; in atmel_spi_set_xfer_speed()