Date: Sun, 10 Dec 2006 23:58:53 GMT From: Sam Leffler <sam@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 111420 for review Message-ID: <200612102358.kBANwrrV073160@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=111420 Change 111420 by sam@sam_ebb on 2006/12/10 23:58:11 cleanup (and correct) comments about why the default pllconfig is ext66 Affected files ... .. //depot/projects/crypto/sys/dev/hifn/hifn7751.c#6 edit Differences ... ==== //depot/projects/crypto/sys/dev/hifn/hifn7751.c#6 (text+ko) ==== @@ -296,19 +296,11 @@ * bus clock and in a 33MHz slot then it will be operating at half * speed until the correct information is provided. * - * According Mike Ham of HiFn, almost every board in existence has - * an external crystal populated at 66Mhz. Using PCI can be a problem - * on modern motherboards, because PCI33 can have clocks from 0 to 33Mhz, - * and some have non-PCI-compliant spread-spectrum clocks, which can confuse - * the pll. - * - * On Linux, there is no way to set pllconfig except on the boot - * command line for static kernels. Even though the string can get adjusted - * afterwards, the device will not be reconfigured. - * - * On FreeBSD, you can edit the device hints by editing /boot/device.hints, - * and this too, is loaded only at boot time. See device.hints(5). - * + * We use a default setting of "ext66" because according to Mike Ham + * of HiFn, almost every board in existence has an external crystal + * populated at 66Mhz. Using PCI can be a problem on modern motherboards, + * because PCI33 can have clocks from 0 to 33Mhz, and some have + * non-PCI-compliant spread-spectrum clocks, which can confuse the pll. */ static void hifn_getpllconfig(device_t dev, u_int *pll)
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