Re: [PATCH 2/3] pata/at91: use new introduce smc accessor

[Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>]

On 14:59 Fri 09 Dec     , Sergei Shtylyov wrote:
> Hello.
> 
> On 08-12-2011 19:23, Jean-Christophe PLAGNIOL-VILLARD wrote:
> 
>    Your subject doesn't parse. Maybe you meant "use newly introduced
> smc accessor"?
yeap
> 
> >this will allow to use the pata_at91 on a single zImage
> 
> >Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD<plagnioj@jcrosoft.com>
> >Cc: Nicolas Ferre<nicolas.ferre@atmel.com>
> >Cc: linux-ide@vger.kernel.org
> >---
> >Hi,
> 
> >	it's depends on other patch for AT91 can we apply via at91
> 
> >Best Regards,
> >J.
> >  drivers/ata/pata_at91.c |   43 +++++++++++++++++++++----------------------
> >  1 files changed, 21 insertions(+), 22 deletions(-)
> 
> >diff --git a/drivers/ata/pata_at91.c b/drivers/ata/pata_at91.c
> >index 5249e6d..c8d1154 100644
> >--- a/drivers/ata/pata_at91.c
> >+++ b/drivers/ata/pata_at91.c
> >@@ -207,11 +207,11 @@ static void set_smc_timing(struct device *dev, struct ata_device *adev,
> >  {
> >  	int ret = 0;
> >  	int use_iordy;
> >+	struct sam9_smc_config smc;
> >  	unsigned int t6z;         /* data tristate time in ns */
> >  	unsigned int cycle;       /* SMC Cycle width in MCK ticks */
> >  	unsigned int setup;       /* SMC Setup width in MCK ticks */
> >  	unsigned int pulse;       /* CFIOR and CFIOW pulse width in MCK ticks */
> >-	unsigned int cs_setup = 0;/* CS4 or CS5 setup width in MCK ticks */
> >  	unsigned int cs_pulse;    /* CS4 or CS5 pulse width in MCK ticks*/
> >  	unsigned int tdf_cycles;  /* SMC TDF MCK ticks */
> >  	unsigned long mck_hz;     /* MCK frequency in Hz */
> >@@ -244,26 +244,25 @@ static void set_smc_timing(struct device *dev, struct ata_device *adev,
> >  	}
> >
> >  	dev_dbg(dev, "Use IORDY=%u, TDF Cycles=%u\n", use_iordy, tdf_cycles);
> >-	info->mode |= AT91_SMC_TDF_(tdf_cycles);
> >
> >  	/* write SMC Setup Register */
> >-	at91_sys_write(AT91_SMC_SETUP(info->cs),
> >-			AT91_SMC_NWESETUP_(setup) |
> >-			AT91_SMC_NRDSETUP_(setup) |
> >-			AT91_SMC_NCS_WRSETUP_(cs_setup) |
> >-			AT91_SMC_NCS_RDSETUP_(cs_setup));
> >+	smc.nrd_setup = setup;
> >+	smc.nwe_setup = smc.nrd_setup;
> >+	smc.ncs_read_setup = 0;
> >+	smc.ncs_write_setup = smc.ncs_read_setup;
> 
>    Why not:
> 
> 	smc.nrd_setup = smc.nwe_setup = setup;
> 	smc.ncs_read_setup = smc.ncs_write_setup = 0;
why not

Best Regards,
J.