On 26 July 2016 at 10:44, Siva Durga Prasad Paladugu <[email protected]> wrote: > From: Siva Durga Prasad Paladugu <[email protected]> > > Add Quad mode support for xilinx spi driver > Inform the spi framework about quad mode > capability by reading it from devicetree. > > Signed-off-by: Siva Durga Prasad Paladugu <[email protected]> > Signed-off-by: Michal Simek <[email protected]> > --- > drivers/spi/xilinx_spi.c | 21 +++++++++++++++++++++ > 1 file changed, 21 insertions(+) > > diff --git a/drivers/spi/xilinx_spi.c b/drivers/spi/xilinx_spi.c > index a951a77..3e01c66 100644 > --- a/drivers/spi/xilinx_spi.c > +++ b/drivers/spi/xilinx_spi.c > @@ -21,6 +21,8 @@ > #include <spi.h> > #include <asm/io.h> > > +DECLARE_GLOBAL_DATA_PTR; > + > /* > * [0]: http://www.xilinx.com/support/documentation > * > @@ -82,6 +84,8 @@ > #define CONFIG_SYS_XILINX_SPI_LIST { CONFIG_SYS_SPI_BASE } > #endif > > +#define XILINX_SPI_QUAD_MODE 2 > + > /* xilinx spi register set */ > struct xilinx_spi_regs { > u32 __space0__[7]; > @@ -109,6 +113,22 @@ struct xilinx_spi_priv { > }; > > static unsigned long xilinx_spi_base_list[] = CONFIG_SYS_XILINX_SPI_LIST; > + > +static int xilinx_spi_child_pre_probe(struct udevice *bus) > +{ > + struct spi_slave *slave = dev_get_parent_priv(bus); > + struct udevice *dev = dev_get_parent(bus); > + int spimode; > + > + spimode = fdtdec_get_int(gd->fdt_blob, dev->of_offset, > "xlnx,spi-mode", > + -1); > + > + if (spimode == XILINX_SPI_QUAD_MODE) > + slave->op_mode_rx = SPI_OPM_RX_QOF;
This is wrong, use platdata in spi-uclass that in-turn detect the mode from dt and SPI_OPM_RX_QOF is never exit. thanks! -- Jagan. _______________________________________________ U-Boot mailing list [email protected] http://lists.denx.de/mailman/listinfo/u-boot
