[U-Boot] [PATCH 4/6] zynqmp: Add SPI driver support for ZynqMP

[Siva Durga Prasad Paladugu]

Hi Jagan,

> -----Original Message-----
> From: Jagan Teki [mailto:jagannadh.teki at gmail.com]
> Sent: Friday, April 17, 2015 2:11 PM
> To: Michal Simek
> Cc: u-boot at lists.denx.de; Tom Rini; Siva Durga Prasad Paladugu
> Subject: Re: [U-Boot] [PATCH 4/6] zynqmp: Add SPI driver support for
> ZynqMP
> 
> On 17 April 2015 at 11:02, Michal Simek <michal.simek at xilinx.com> wrote:
> > On 04/16/2015 08:13 PM, Jagan Teki wrote:
> >> On 15 April 2015 at 19:03, Michal Simek <michal.simek at xilinx.com> wrote:
> >>> From: Siva Durga Prasad Paladugu <siva.durga.paladugu at xilinx.com>
> >>>
> >>> Added the SPI driver support for ZynqMP The controller is same as
> >>> zynq SPI controller
> >>>
> >>> Signed-off-by: Siva Durga Prasad Paladugu <sivadur at xilinx.com>
> >>> Signed-off-by: Michal Simek <michal.simek at xilinx.com>
> >>> ---
> >>>
> >>>  arch/arm/include/asm/arch-zynqmp/hardware.h | 3 +++
> >>>  include/configs/xilinx_zynqmp.h             | 8 ++++++++
> >>>  2 files changed, 11 insertions(+)
> >>>
> >>> diff --git a/arch/arm/include/asm/arch-zynqmp/hardware.h
> >>> b/arch/arm/include/asm/arch-zynqmp/hardware.h
> >>> index 1fedb1bb4b94..c9dc49d78317 100644
> >>> --- a/arch/arm/include/asm/arch-zynqmp/hardware.h
> >>> +++ b/arch/arm/include/asm/arch-zynqmp/hardware.h
> >>> @@ -11,6 +11,9 @@
> >>>  #define ZYNQ_SERIAL_BASEADDR0  0xFF000000  #define
> >>> ZYNQ_SERIAL_BASEADDR1  0xFF001000
> >>>
> >>> +#define ZYNQ_SPI_BASEADDR0     0xFF040000
> >>> +#define ZYNQ_SPI_BASEADDR1     0xFF050000
> >>> +
> >>>  #define ZYNQ_I2C_BASEADDR0     0xFF020000
> >>>  #define ZYNQ_I2C_BASEADDR1     0xFF030000
> >>>
> >>> diff --git a/include/configs/xilinx_zynqmp.h
> >>> b/include/configs/xilinx_zynqmp.h index 54bca6d47b72..df7541b85baf
> >>> 100644
> >>> --- a/include/configs/xilinx_zynqmp.h
> >>> +++ b/include/configs/xilinx_zynqmp.h
> >>> @@ -71,6 +71,14 @@
> >>>  #define CONFIG_CMD_ELF
> >>>  #define CONFIG_MP
> >>>
> >>> +/* SPI */
> >>> +#ifdef CONFIG_ZYNQ_SPI
> >>> +# define CONFIG_SPI_FLASH
> >>> +# define CONFIG_SPI_FLASH_SST
> >>> +# define CONFIG_CMD_SPI
> >>
> >> CMD_SPI is never been verified I suppose, if so not required at this
> >> point of time.
> >
> > It is enabled on 75 platforms that's why I can't see any problem with
> > it. If something is not verified then it should be verified. If it is
> > completely broken it should be removed.
> 
> I do understand that it uses more boards based on their usage and need, I
> believe zynq_spi mostly for flash related ops, if ie the case CMD_SF enough I
> guess.

We didn’t need it at this point of time and also not verified. 
Its mostly flash related ops which we use. Will send v2 for the same.

Regards,
Siva

> 
> thaks!
> --
> Jagan.