linux-kernel - RE: resend: [PATCH] amba_pl022: Setup SPI configuration based on spi->mode

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <083DF309106F364B939360100EC290F80AD49D5230@eu1rdcrdc1wx030.exi.nxp.com>
Date:	Mon, 13 Sep 2010 18:51:57 +0200
From:	Kevin Wells <kevin.wells@....com>
To:	Kevin Wells <wellsk40@...il.com>,
	"sameo@...ux.intel.com" <sameo@...ux.intel.com>,
	"rabin.vincent@...ricsson.com" <rabin.vincent@...ricsson.com>,
	"linus.walleij@...ricsson.com" <linus.walleij@...ricsson.com>,
	"srinidhi.kasagar@...ricsson.com" <srinidhi.kasagar@...ricsson.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux@....linux.org.uk" <linux@....linux.org.uk>,
	"u.kleine-koenig@...gutronix.de" <u.kleine-koenig@...gutronix.de>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	"tj@...nel.org" <tj@...nel.org>,
	"grant.likely@...retlab.ca" <grant.likely@...retlab.ca>,
	"spi-devel-general@...ts.sourceforge.net" 
	<spi-devel-general@...ts.sourceforge.net>
CC:	"quentinyang05@...il.com" <quentinyang05@...il.com>,
	"Lukasz.Baj@...to.com" <Lukasz.Baj@...to.com>
Subject: RE: resend: [PATCH] amba_pl022: Setup SPI configuration based on
 spi->mode

> +       if (spi->mode & SPI_CPOL)
> +               tmp = SSP_CLK_POL_IDLE_HIGH;
> +       else
> +               tmp = SSP_CLK_POL_IDLE_LOW;
> +       SSP_WRITE_BITS(chip->cr0, tmp, SSP_CR0_MASK_SPO, 6);
> +
> +       if (spi->mode & SPI_CPHA)
> +               tmp = SSP_CLK_SECOND_EDGE;
> +       else
> +               tmp = SSP_CLK_FIRST_EDGE;
> +       SSP_WRITE_BITS(chip->cr0, tmp, SSP_CR0_MASK_SPH, 6);

SSP_CR0_MASK_SPH (SPHA) should use bit 7, not bit 6.
Should be:
       SSP_WRITE_BITS(chip->cr0, tmp, SSP_CR0_MASK_SPH, 7);

> +
>        SSP_WRITE_BITS(chip->cr0, chip_info->clk_freq.scr, SSP_CR0_MASK_SCR,
> 8);
>        /* Loopback is available on all versions except PL023 */

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/