On Wednesday, August 26, 2015 at 02:09:55 AM, Chin Liang See wrote:
> Enable the quad output fast read and quad input fast program
> support. Quad mode is supported by Cadence QSPI controller.
> 
> Signed-off-by: Chin Liang See <cl...@altera.com>
> Cc: Dinh Nguyen <dingu...@opensource.altera.com>
> Cc: Stefan Roese <s...@denx.de>
> Cc: Vikas Manocha <vikas.mano...@st.com>
> Cc: Jagannadh Teki <jt...@openedev.com>
> Cc: Pavel Machek <pa...@denx.de>
> Cc: Marek Vasut <ma...@denx.de>
> ---
>  drivers/spi/cadence_qspi.c     |   11 +++++++++++
>  drivers/spi/cadence_qspi_apb.c |   16 ++++++++++++----
>  2 files changed, 23 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/spi/cadence_qspi.c b/drivers/spi/cadence_qspi.c
> index 34a0f46..c6b69c4 100644
> --- a/drivers/spi/cadence_qspi.c
> +++ b/drivers/spi/cadence_qspi.c
> @@ -318,6 +318,16 @@ static int cadence_spi_ofdata_to_platdata(struct
> udevice *bus) return 0;
>  }
> 
> +static int cadence_spi_child_pre_probe(struct udevice *dev)
> +{
> +     struct spi_slave *slave = dev_get_parentdata(dev);
> +
> +     /* Cadence QSPI controller can support quad read and program */
> +     slave->op_mode_rx = SPI_OPM_RX_QOF;
> +     slave->op_mode_tx = SPI_OPM_TX_QPP;
> +     return 0;
> +}
> +
>  static const struct dm_spi_ops cadence_spi_ops = {
>       .xfer           = cadence_spi_xfer,
>       .set_speed      = cadence_spi_set_speed,
> @@ -341,5 +351,6 @@ U_BOOT_DRIVER(cadence_spi) = {
>       .ofdata_to_platdata = cadence_spi_ofdata_to_platdata,
>       .platdata_auto_alloc_size = sizeof(struct cadence_spi_platdata),
>       .priv_auto_alloc_size = sizeof(struct cadence_spi_priv),
> +     .child_pre_probe = cadence_spi_child_pre_probe,
>       .probe = cadence_spi_probe,
>  };

Simon, can you please check if this DM bit is correct ?

> diff --git a/drivers/spi/cadence_qspi_apb.c
> b/drivers/spi/cadence_qspi_apb.c index d053407..deffb6b 100644
> --- a/drivers/spi/cadence_qspi_apb.c
> +++ b/drivers/spi/cadence_qspi_apb.c
> @@ -29,6 +29,9 @@
>  #include <asm/io.h>
>  #include <asm/errno.h>
>  #include "cadence_qspi.h"
> +#include <spi.h>
> +#include <spi_flash.h>
> +#include "../mtd/spi/sf_internal.h"

Why do you need this include ?

[...]
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