pm2fb: memclock setting corrections

PATCH In review Antonino A. Daplas 1 participant 1 message May 5, 2007 Framebuffer layer

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Antonino A. Daplas

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2007-05-05 16:47 UTC #0 lore raw

PATCH 4/20 pm2fb: memclock setting corrections

From: Krzysztof Helt <[email protected]>

This patch disables a memory clock setting if a board has been initialized by BIOS. This allows using the memory clock set by manufacturer of the board.
This patch also sets default clock for 3dlabs Permedia 2V reference board's clock to 75MHz (BIOS setting for EONtronic Permedia 2Vboard), because the default 83MHz can be too high.

Signed-off-by Krzysztof Helt <[email protected]>

Signed-off-by Antonino Daplas <[email protected]>

---

 drivers/video/pm2fb.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

drivers/video/pm2fb.c +2 -2

index 33f17a9..5395419 100644
@@ -1141,10 +1141,10 @@ #endif
 		default_par->mem_control, default_par->boot_address,
 		default_par->mem_config);
 
-	default_par->memclock = CVPPC_MEMCLOCK;
 	if(default_par->mem_control == 0 &&
 		default_par->boot_address == 0x31 &&
 		default_par->mem_config == 0x259fffff) {
+		default_par->memclock = CVPPC_MEMCLOCK;
 		default_par->mem_control=0;
 		default_par->boot_address=0x20;
 		default_par->mem_config=0xe6002021;

@@ -1164,7 +1164,7 @@ #endif
 			DPRINTK("We have not been initialized by VGA BIOS "
 				"and are running on an 3dlabs reference board\n");
 			DPRINTK("Initializing card timings manually...\n");
-			default_par->memclock=70000;
+			default_par->memclock=74894;
 		}
 	}

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