[U-Boot] [PATCH v2 09/19] arm: socfpga: Add drivers for programing FPGA from flash

[Chee, Tien Fong]

On Isn, 2017-09-25 at 11:14 +0200, Marek Vasut wrote:
> On 09/25/2017 10:40 AM, tien.fong.chee at intel.com wrote:
> > 
> > From: Tien Fong Chee <tien.fong.chee at intel.com>
> > 
> > These drivers handle FPGA program operation from flash loading
> > RBF to memory and then to program FPGA.
> > 
> > Signed-off-by: Tien Fong Chee <tien.fong.chee at intel.com>
> Did you run checkpatch on this before submitting ? I presume no ...
> 
> > 
> > ---
> >  .../include/mach/fpga_manager_arria10.h            |  27 ++
> >  drivers/fpga/socfpga_arria10.c                     | 391
> > ++++++++++++++++++++-
> >  include/altera.h                                   |   6 +
> >  include/configs/socfpga_common.h                   |   4 +
> >  4 files changed, 425 insertions(+), 3 deletions(-)
> [...]
> 
> > 
> > @@ -112,13 +122,14 @@ static int
> > wait_for_nconfig_pin_and_nstatus_pin(void)
> >  	unsigned long mask =
> > ALT_FPGAMGR_IMGCFG_STAT_F2S_NCONFIG_PIN_SET_MSK |
> >  				ALT_FPGAMGR_IMGCFG_STAT_F2S_NSTATU
> > S_PIN_SET_MSK;
> >  
> > -	/* Poll until f2s_nconfig_pin and f2s_nstatus_pin; loop
> > until de-asserted,
> > -	 * timeout at 1000ms
> > +	/*
> > +	 * Poll until f2s_nconfig_pin and f2s_nstatus_pin; loop
> > until
> > +	 * de-asserted, timeout at 1000ms
> >  	 */
> >  	return wait_for_bit(__func__,
> >  			    &fpga_manager_base->imgcfg_stat,
> >  			    mask,
> > -			    false, FPGA_TIMEOUT_MSEC, false);
> > +			    true, FPGA_TIMEOUT_MSEC, false);
> >  }
> Seems more like a fix, split this out.
> 
> > 
> >  static int wait_for_f2s_nstatus_pin(unsigned long value)
> > @@ -469,6 +480,7 @@ int socfpga_load(Altera_desc *desc, const void
> > *rbf_data, size_t rbf_size)
> >  
> >  	/* Initialize the FPGA Manager */
> >  	status = fpgamgr_program_init((u32 *)rbf_data, rbf_size);
> > +
> >  	if (status)
> >  		return status;
> >  
> > @@ -477,3 +489,376 @@ int socfpga_load(Altera_desc *desc, const
> > void *rbf_data, size_t rbf_size)
> >  
> >  	return fpgamgr_program_finish();
> >  }
> > +
> > +#if defined(CONFIG_CMD_FPGA_LOADFS)
> > +const char *get_cff_filename(const void *fdt, int *len, u32 core)
> > +{
> > +	const char *cff_filename = NULL;
> > +	const char *cell;
> > +	int nodeoffset;
> > +	nodeoffset = fdtdec_next_compatible(fdt, 0,
> > +			 COMPAT_ALTERA_SOCFPGA_FPGA0);
> > +
> > +	if (nodeoffset >= 0) {
> > +		if (core)
> > +			cell = fdt_getprop(fdt,
> > +					nodeoffset,
> > +					"bitstream_core",
> > +					len);
> > +		else
> > +			cell = fdt_getprop(fdt, nodeoffset,
> > "bitstream_periph",
> > +					 len);
> > +
> > +		if (cell)
> > +			cff_filename = cell;
> > +	}
> > +
> > +	return cff_filename;
> > +}
> > +
> > +const char *get_cff_devpart(const void *fdt, int *len)
> > +{
> > +	const char *cff_devpart = NULL;
> > +	const char *cell;
> > +	int nodeoffset;
> > +	nodeoffset = fdtdec_next_compatible(fdt, 0,
> > +			 COMPAT_ALTERA_SOCFPGA_FPGA0);
> > +
> > +	cell = fdt_getprop(fdt, nodeoffset, "bitstream_devpart",
> > len);
> > +
> > +	if (cell)
> > +		cff_devpart = cell;
> > +
> > +	return cff_devpart;
> > +}
> Take a look at splash*.c , I believe that can be reworked into
> generic
> firmware loader , which you could then use here.
> 
the devpart is hard coded in splash*.c. The function here is getting
devpart info from DTS. So, is there any similar function in splash*.c?
May be you can share more about your idea.
> [...]
> 
> > 
> > diff --git a/include/configs/socfpga_common.h
> > b/include/configs/socfpga_common.h
> > index 9897e11..eadce2d 100644
> > --- a/include/configs/socfpga_common.h
> > +++ b/include/configs/socfpga_common.h
> > @@ -27,7 +27,11 @@
> >   */
> >  #define CONFIG_NR_DRAM_BANKS		1
> >  #define PHYS_SDRAM_1			0x0
> > +#if defined(CONFIG_TARGET_SOCFPGA_GEN5)
> >  #define CONFIG_SYS_MALLOC_LEN		(64 * 1024 * 1024)
> > +#elif defined(CONFIG_TARGET_SOCFPGA_ARRIA10)
> > +#define CONFIG_SYS_MALLOC_LEN		(128 * 1024 * 1024)
> > +#endif
> You definitely don't need 128 MiB of malloc area.
> 
> > 
> >  #define CONFIG_SYS_MEMTEST_START	PHYS_SDRAM_1
> >  #define CONFIG_SYS_MEMTEST_END		PHYS_SDRAM_1_SIZE
> >  #if defined(CONFIG_TARGET_SOCFPGA_GEN5)
> > 
>