[U-Boot] [PATCH 07/19] arm: socfpga: Add DRAM bank size initialization function

[Chee, Tien Fong]

On Rab, 2017-08-30 at 10:56 +0200, Marek Vasut wrote:
> On 08/30/2017 10:36 AM, Chee, Tien Fong wrote:
> > 
> > On Sel, 2017-08-29 at 13:59 +0200, Marek Vasut wrote:
> > > 
> > > On 08/29/2017 12:45 PM, tien.fong.chee at intel.com wrote:
> > > > 
> > > > 
> > > > From: Tien Fong Chee <tien.fong.chee at intel.com>
> > > > 
> > > > Add function for both multiple DRAM bank and single DRAM bank
> > > > size
> > > > initialization. This common functionality could be used by
> > > > every
> > > > single
> > > > SOCFPGA board.
> > > > 
> > > > Signed-off-by: Tien Fong Chee <tien.fong.chee at intel.com>
> > > > ---
> > > >  arch/arm/mach-socfpga/board.c    |   12 ++++++++++++
> > > >  include/configs/socfpga_common.h |    1 +
> > > >  2 files changed, 13 insertions(+), 0 deletions(-)
> > > > 
> > > > diff --git a/arch/arm/mach-socfpga/board.c b/arch/arm/mach-
> > > > socfpga/board.c
> > > > index a41d089..3f2e30a 100644
> > > > --- a/arch/arm/mach-socfpga/board.c
> > > > +++ b/arch/arm/mach-socfpga/board.c
> > > > @@ -29,6 +29,18 @@ int board_init(void)
> > > >  	return 0;
> > > >  }
> > > >  
> > > > +int dram_init_banksize(void)
> > > > +{
> > > > +#if !defined(CONFIG_SYS_SDRAM_BASE) &&
> > > > !defined(CONFIG_SYS_SDRAM_SIZE)
> > > > +	fdtdec_setup_memory_banksize();
> > > This should work on al boards, so why do you need this macro ?
> > > Also, this should go into arch/arm/ , not board/
> > > 
> > In case these macros are not defined, then we need to get the info
> > from
> > DTS. This is in arch/arm/mach-socpfga/board.c . I found some in
> > arch/arm, and other in board/ .
> Every socfpga platform in u-boot has a dts, so you can always extract
> the memory config from it and it's the preferred method.
> 
This implementation supports both method, from header or DTS.
> > 
> > > 
> > > > 
> > > > 
> > > > +#else
> > > > +	gd->bd->bi_dram[0].start = CONFIG_SYS_SDRAM_BASE;
> > > > +	gd->bd->bi_dram[0].size =  CONFIG_SYS_SDRAM_SIZE;
> > > > +#endif
> > > > +
> > > > +	return 0;
> > > > +}
> > > > +
> > > >  #ifdef CONFIG_USB_GADGET
> > > >  struct dwc2_plat_otg_data socfpga_otg_data = {
> > > >  	.usb_gusbcfg	= 0x1417,
> > > > diff --git a/include/configs/socfpga_common.h
> > > > b/include/configs/socfpga_common.h
> > > > index c15d244..05b03bd 100644
> > > > --- a/include/configs/socfpga_common.h
> > > > +++ b/include/configs/socfpga_common.h
> > > > @@ -47,6 +47,7 @@
> > > >  	(CONFIG_SYS_INIT_RAM_ADDR + CONFIG_SYS_INIT_SP_OFFSET)
> > > >  
> > > >  #define CONFIG_SYS_SDRAM_BASE		PHYS_SDRAM_1
> > > > +#define CONFIG_SYS_SDRAM_SIZE		PHYS_SDRAM_1_SIZE
> > > >  #ifdef CONFIG_SOCFPGA_VIRTUAL_TARGET
> > > >  #define CONFIG_SYS_TEXT_BASE		0x08000040
> > > >  #else
> > > > 
>