[U-Boot] [PATCH v3 2/3] spi: zynqmp_qspi: Add QSPI driver support for ZynqMP

[Jagan Teki]

On 19 July 2016 at 14:40, Siva Durga Prasad Paladugu
<siva.durga.paladugu at xilinx.com> wrote:
> This adds QSPI driver support for ZynqMP platform
> This driver supports all spi flash commands in
> qspi single mode.
>
> Signed-off-by: Siva Durga Prasad Paladugu <sivadur at xilinx.com>
> ---
> Changes for v3:
> - None
> Changes for v2:
> - set no_all_quad as zynqmp qspi
>   controller doesnt support it
> ---
>  drivers/spi/Kconfig       |   9 +
>  drivers/spi/Makefile      |   1 +
>  drivers/spi/zynqmp_qspi.c | 705 ++++++++++++++++++++++++++++++++++++++++++++++
>  3 files changed, 715 insertions(+)
>  create mode 100644 drivers/spi/zynqmp_qspi.c
>
> diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
> index aca385d..6814ff9 100644
> --- a/drivers/spi/Kconfig
> +++ b/drivers/spi/Kconfig
> @@ -172,6 +172,15 @@ config ZYNQ_QSPI
>           Zynq QSPI IP core. This IP is used to connect the flash in
>           4-bit qspi, 8-bit dual stacked and shared 4-bit dual parallel.
>
> +config ZYNQMP_QSPI
> +       bool "ZynqMP QSPI driver"
> +       depends on ARCH_ZYNQMP
> +       help
> +         Enable the ZynqMP Quad-SPI (QSPI) driver. This driver can be
> +         used to access the SPI NOR flash on platforms embedding this
> +         ZynqMP QSPI IP core. This IP is used to connect the flash in
> +         4-bit qspi, 8-bit dual stacked and shared 4-bit dual parallel.

If this is the case, spi couldn't be the correct place to handle nor dualness.

thanks!
-- 
Jagan.