linux-kernel - [PATCH] atyfb: force 29MHz xtal on G3 PowerBooks

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-next>] [day] [month] [year] [list]

Message-ID: <20070825091358.GA12235@aepfle.de>
Date:	Sat, 25 Aug 2007 11:13:58 +0200
From:	Olaf Hering <olaf@...fle.de>
To:	linuxppc-dev@...abs.org, linux-kernel@...r.kernel.org
Subject: [PATCH] atyfb: force 29MHz xtal on G3 PowerBooks


The atyfb does not work on my 233MHz PowerBook with Mach64 LP, when the
kernel is booted from firmware. aty_ld_pll_ct() returns 0x22 and xtal
remains at 14.31818. When booted from MacOS, aty_ld_pll_ct() returns 0x3c
and xtal is changed to 29.498928.
Google indicates that all 4 PowerBook models need the higher value.

Signed-off-by: Olaf Hering <olaf@...fle.de>

--- a/drivers/video/aty/atyfb_base.c
+++ b/drivers/video/aty/atyfb_base.c
@@ -2411,7 +2411,7 @@ static int __devinit aty_init(struct fb_
 				diff1 = -diff1;
 			if (diff2 < 0)
 				diff2 = -diff2;
-			if (diff2 < diff1) {
+			if (diff2 < diff1 || (M64_HAS(G3_PB_1024x768))) {
 				par->ref_clk_per = 1000000000000ULL / 29498928;
 				xtal = "29.498928";
 			}
-
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/