[U-Boot] driver/spi: Add FSPI driver for NXP FlexSPI controller

[York Sun]

On 9/25/18 1:41 AM, Ashish Kumar wrote:
> Add nxp_fspi driver for NXP FlexSPI controller.
> This driver supports both IP Mode read/write and
> AHB mode READ.
> 
> It supports Single Bit mode read along with Fast Read cmd support.
> Octal bit mode is supported for read.
> Multi CS are supported tested until 4.
> 
> Signed-off-by: Suresh Gupta <suresh.gupta at nxp.com>
> Signed-off-by: Yogesh Gaur <yogeshnarayan.gaur at nxp.com>
> Signed-off-by: Rajat Srivastava <Rajat.srivastava at nxp.com>
> Signed-off-by: Ashish Kumar <Ashish.Kumar at nxp.com>
> ---
>  arch/arm/cpu/armv8/fsl-layerscape/Kconfig |   10 +
>  drivers/spi/Kconfig                       |    7 +
>  drivers/spi/Makefile                      |    1 +
>  drivers/spi/nxp_fspi.c                    | 1088 +++++++++++++++++++++
>  drivers/spi/nxp_fspi.h                    |  422 ++++++++
>  5 files changed, 1528 insertions(+)
>  create mode 100644 drivers/spi/nxp_fspi.c
>  create mode 100644 drivers/spi/nxp_fspi.h

Jagan,

I don't see any comment on this patch. Please review. This patch blocks
SoC and board patches in my queue.

York