[U-Boot] [PATCH 06/10] arm: socfpga: arria10: Added drivers for Arria10 Reset Manager

[Chee, Tien Fong <tien.fong.chee@intel.com>]

On Rab, 2016-12-07 at 14:58 +0100, Marek Vasut wrote:
> On 12/07/2016 12:58 PM, Chee, Tien Fong wrote:
> > 
> > On Sel, 2016-12-06 at 13:55 +0100, Marek Vasut wrote:
> > > 
> > > On 12/06/2016 09:08 AM, Chee Tien Fong wrote:
> > > > 
> > > > 
> > > > From: Tien Fong Chee <tien.fong.chee@intel.com>
> > > > 
> > > > Drivers for reset manager is restructured such that common
> > > > functions,
> > > > gen5 drivers and Arria10 drivers are moved to reset_manager.c,
> > > > reset_manager_gen5.c and reset_manager_arria10.c respectively.
> > > > 
> > > > Signed-off-by: Tien Fong Chee <tien.fong.chee@intel.com>
> > > > Cc: Marek Vasut <marex@denx.de>
> > > > Cc: Dinh Nguyen <dinguyen@kernel.org>
> > > > Cc: Chin Liang See <chin.liang.see@intel.com>
> > > > Cc: Tien Fong <skywindctf@gmail.com>
> [...]
> 
> > 
> > > 
> > > > 
> > > > +void reset_deassert_dedicated_peripherals(void)
> > > > +{
> > > > +	int i;
> > > > +	u32 mask0 = 0;
> > > > +	u32 mask1 = 0;
> > > > +	u32 pinmux_addr = SOCFPGA_PINMUX_DEDICATED_IO_ADDRESS;
> > > > +	u32 mask = 0;
> > > > +#if defined(CONFIG_MMC)
> > > > +	mask |= ALT_RSTMGR_PER0MODRST_SDMMCECC_SET_MSK;
> > > > +#elif defined(CONFIG_CADENCE_QSPI)
> > > > +	mask |= ALT_RSTMGR_PER0MODRST_QSPIECC_SET_MSK;
> > > > +#elif defined(CONFIG_NAND_DENALI)
> > > > +	mask |= ALT_RSTMGR_PER0MODRST_NANDECC_SET_MSK;
> > > > +#else
> > > Shouldn't this come from OF instead of being ifdef'd ?
> > > 
> > What is OF?
> Device Tree (Open Firmware).
> 
> > 
> > what is your suggestion to make this function generic for
> > all type of flash?
> Pull it from OF ?
> 
Why you prefer device tree implementation over #define in defconfig,
because there is performance penalty.
> > 
> > > 
> > > > 
> > > > +#error "unsupported dedicated peripherals"
> > > > +#endif
> > > > +	mask |= ALT_RSTMGR_PER0MODRST_DMAECC_SET_MSK;
> > > > +
> > > > +	/* enable ECC OCP first */
> > > > +	clrbits_le32(&reset_manager_base->per0modrst, mask);
> > > [...]
>