Messages in this thread Patch in this message | | | Date | Sun, 23 Mar 2003 18:11:56 +0100 | From | Kronos <> | Subject | [PATCH] Make radeonfb work with R300 |
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Hi, radeonfb is unable to acquire the pll clock values from the BIOS on newer radeon cards and uses default values which don't work.
Using ATI binary driver for X I founded this in the log:
(II) fglrx(0): PLL parameters: rf=2700 rd=12 min=20000 max=40000; xclk=27000
This patch (against 2.5.65) sets pll values according to X:
--- drivers/video/radeonfb.orig.c Sun Mar 23 16:15:04 2003 +++ drivers/video/radeonfb.c Sun Mar 23 18:01:48 2003 @@ -881,6 +881,16 @@ rinfo->pll.ref_div = 12; rinfo->pll.ref_clk = 2700; break; + case PCI_DEVICE_ID_ATI_RADEON_ND: + case PCI_DEVICE_ID_ATI_RADEON_NE: + case PCI_DEVICE_ID_ATI_RADEON_NF: + case PCI_DEVICE_ID_ATI_RADEON_NG: + rinfo->pll.ppll_max = 40000; + rinfo->pll.ppll_min = 20000; + rinfo->pll.xclk = 27000; + rinfo->pll.ref_div = 12; + rinfo->pll.ref_clk = 2700; + break; case PCI_DEVICE_ID_ATI_RADEON_QD: case PCI_DEVICE_ID_ATI_RADEON_QE: case PCI_DEVICE_ID_ATI_RADEON_QF:
It works on a R300 NE (9500 Pro), but should be ok also for the other R300 chips (don't have the hw to make a test though).
In X log there is also this line:
(II) fglrx(0): Primary V_BIOS segment is: 0xc000
I've no idea of what V_BIOS is (Video BIOS?), but it may be useful ;)
HTH, Luca -- Home: http://kronoz.cjb.net Windows /win'dohz/ n. : thirty-two bit extension and graphical shell to a sixteen bit patch to an eight bit operating system originally coded for a four bit microprocessor which was written by a two-bit company that can't stand a bit of competition. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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