[U-Boot] [PATCH 6/6] arm: socfpga: Add Designware (DW) SPI support to config header

[Marek Vasut <marex@denx.de>]

On Saturday, November 15, 2014 at 02:35:03 PM, Stefan Roese wrote:
> On 14.11.2014 21:18, Marek Vasut wrote:
> > On Wednesday, November 12, 2014 at 06:53:54 PM, Pavel Machek wrote:
> >> On Fri 2014-11-07 13:50:34, Stefan Roese wrote:
> >>> Enable support for the DW master SPI controller in the config header
> >>> for the SoCFPGA. This controller can only be enabled, if DT support
> >>> is enabled.
> >>> 
> >>> Signed-off-by: Stefan Roese <sr@denx.de>
> >>> Cc: Chin Liang See <clsee@altera.com>
> >>> Cc: Dinh Nguyen <dinguyen@altera.com>
> >>> Cc: Vince Bridgers <vbridger@altera.com>
> >>> Cc: Marek Vasut <marex@denx.de>
> >>> Cc: Pavel Machek <pavel@denx.de>
> >>> ---
> >>> 
> >>>   include/configs/socfpga_common.h | 12 ++++++++++++
> >>>   1 file changed, 12 insertions(+)
> >>> 
> >>> diff --git a/include/configs/socfpga_common.h
> >>> b/include/configs/socfpga_common.h index 9fc4212..830b956 100644
> >>> --- a/include/configs/socfpga_common.h
> >>> +++ b/include/configs/socfpga_common.h
> >>> @@ -191,6 +191,18 @@ unsigned int cm_get_qspi_controller_clk_hz(void);
> >>> 
> >>>   #define CONFIG_CMD_SF
> >>>   #endif
> >>> 
> >>> +#ifdef CONFIG_OF_CONTROL	/* DW SPI is controlled via DT */
> >>> +#define CONFIG_CMD_DM
> >>> +#define CONFIG_DM
> >>> +#define CONFIG_DM_SPI
> >>> +#define CONFIG_DESIGNWARE_SPI
> >>> +#ifndef __ASSEMBLY__
> >>> +unsigned int cm_get_spi_controller_clk_hz(void);
> >>> +#define CONFIG_DW_SPI_REF_CLK		cm_get_spi_controller_clk_hz()
> >> 
> >> Putting prototypes into configuration file is ugly. Hiding function
> >> call into macro so that it looks like constant is evil. Is there
> >> better solution?
> > 
> > The SPI driver should call this function directly. Or is there a reason
> > why such a macro is used ?
> 
> Historically. I'll check it again and will implement it differently in
> the next version. Tomorrow or on Monday.

Roger. Thank you!

Best regards,
Marek Vasut