[U-Boot] [PATCH 04/11] arm: socfpga: clkmgr: Segregate the Clock Manager for Stratix 10

[Chin Liang See]

On Tue, 2016-09-06 at 14:08 +0200, Marek Vasut wrote:
> On 09/06/2016 07:14 AM, Chin Liang See wrote:
> > On Mon, 2016-09-05 at 17:58 +0200, Marek Vasut wrote:
> > > On 08/22/2016 05:02 PM, Chin Liang See wrote:
> > > > Segregate the Clock Manager to support both GEN5 SoC and
> > > > Stratix 10 SoC.
> > > > 
> > > > Signed-off-by: Chin Liang See <clsee at altera.com>
> > > > Cc: Marek Vasut <marex at denx.de>
> > > > Cc: Dinh Nguyen <dinguyen at opensource.altera.com>
> > > > Cc: Ley Foon Tan <lftan at altera.com>
> > > > ---
> > > >  arch/arm/mach-socfpga/clock_manager.c | 8 ++++++++
> > > >  1 file changed, 8 insertions(+)
> > > > 
> > > > diff --git a/arch/arm/mach-socfpga/clock_manager.c
> > > > b/arch/arm/mach
> > > > -socfpga/clock_manager.c
> > > > index aa71636..0d67b3c 100644
> > > > --- a/arch/arm/mach-socfpga/clock_manager.c
> > > > +++ b/arch/arm/mach-socfpga/clock_manager.c
> > > > @@ -10,6 +10,7 @@
> > > >  
> > > >  DECLARE_GLOBAL_DATA_PTR;
> > > >  
> > > > +#if defined(CONFIG_TARGET_SOCFPGA_GEN5)
> > > >  static const struct socfpga_clock_manager *clock_manager_base
> > > > =
> > > >  	(struct socfpga_clock_manager
> > > > *)SOCFPGA_CLKMGR_ADDRESS;
> > > >  
> > > > @@ -446,9 +447,11 @@ unsigned int cm_get_l4_sp_clk_hz(void)
> > > >  
> > > >  	return clock;
> > > >  }
> > > > +#endif /* CONFIG_TARGET_SOCFPGA_GEN5 */
> > > >  
> > > >  unsigned int cm_get_mmc_controller_clk_hz(void)
> > > >  {
> > > > +#if defined(CONFIG_TARGET_SOCFPGA_GEN5)
> > > >  	uint32_t reg, clock = 0;
> > > >  
> > > >  	/* identify the source of MMC clock */
> > > > @@ -475,8 +478,12 @@ unsigned int
> > > > cm_get_mmc_controller_clk_hz(void)
> > > >  	/* further divide by 4 as we have fixed divider at
> > > > wrapper
> > > > */
> > > >  	clock /= 4;
> > > >  	return clock;
> > > > +#elif defined(CONFIG_TARGET_SOCFPGA_STRATIX10)
> > > > +	return 25000000;
> > > > +#endif /* CONFIG_TARGET_SOCFPGA_GEN5 */
> > > >  }
> > > >  
> > > > +#if defined(CONFIG_TARGET_SOCFPGA_GEN5)
> > > >  unsigned int cm_get_qspi_controller_clk_hz(void)
> > > 
> > > Are you sure this won't cause build breakage ? I believe this is
> > > still
> > > used by the cadence qspi driver.
> > 
> > That is a good question. As for SOC Virtual Platform, we are not
> > enabling the QSPI controller.
> 
> When stratix 10 ships, this will be left broken then ?
> 

Definitely not as we will enable and validate this against emulation in
coming weeks.

Thanks
Chin Liang

>