<pre><tt><tt>Hi,<br>I have ported the x86emu x86 emulator to IBM PIBS firmware on a Maple <br>platform. I am now trying to emulate a PCI ATI RADEON RV100 VGA BIOS. <br>It goes all the way and seems OK. When I boot Linux , the card is <br>recognized (it wasn't before), but the screen just flickers a couple of <br>time. I worry about the message:<br>"radeonfb: Retrieved PLL infos from BIOS" since I don't have a BIOS. <br>And the radeon_base.c driver seems to be doing a bunch of them:<br> /*<br> * Check out if we have an X86 which gave us some PLL <br>informations<br> * and if yes, retrieve them<br> */<br> if (!force_measure_pll && rinfo->bios_seg) {<br> u16 pll_info_block = BIOS_IN16(rinfo->fp_bios_start + <br>0x30);<br><br> rinfo->pll.sclk = BIOS_IN16(pll_info_block + <br>0x08);<br> rinfo->pll.mclk = BIOS_IN16(pll_info_block + <br>0x0a);<br>
rinfo->pll.ref_clk = BIOS_IN16(pll_info_block + <br>0x0e);<br> rinfo->pll.ref_div = BIOS_IN16(pll_info_block + <br>0x10);<br> rinfo->pll.ppll_min = BIOS_IN32(pll_info_block + <br>0x12);<br> rinfo->pll.ppll_max = BIOS_IN32(pll_info_block + <br>0x16);<br><br> printk(KERN_INFO "radeonfb: Retrieved PLL infos from <br>BIOS\n");<br> goto found;<br><br><br>The PLL values may be bogus..<br><br><br>Thanks for any help.<br>-jf simon<br><br><br>radeonfb_pci_register BEGIN<br>aper_base: 80000000 MC_FB_LOC to: 83ff8000, MC_AGP_LOC to: ffff9000<br>radeonfb (0000:02:01.0): Found 32768k of DDR 64 bits wide videoram<br>radeonfb (0000:02:01.0): mapped 16384k videoram<br>radeonfb: Found Intel x86 BIOS ROM Image<br>radeonfb: No ATY,RefCLK property !<br>radeonfb: Retrieved PLL infos from BIOS<br>radeonfb: Reference=27.00 MHz (RefDiv=60) Memory=150.00 Mhz, <br>System=150.00 MHz<br>radeonfb:
PLL min 12000 max 35000<br>1 chips in connector info<br> - chip 1 has 2 connectors<br> * connector 0 of type 2 (CRT) : 2300<br> * connector 1 of type 3 (DVI-I) : 3201<br>Starting monitor auto detection...<br>radeonfb: I2C (port 1) ... not found<br>radeonfb: I2C (port 2) ... not found<br>radeonfb: I2C (port 3) ... found CRT display<br>radeonfb: I2C (port 4) ... not found<br>radeon_probe_OF_head<br>radeonfb: I2C (port 2) ... not found<br>radeonfb: I2C (port 4) ... not found<br>radeon_probe_OF_head<br>radeonfb: I2C (port 3) ... found CRT display<br>radeonfb: Monitor 1 type CRT found<br>radeonfb: EDID probed<br>radeonfb: Monitor 2 type no found<br>hStart = 1328, hEnd = 1440, hTotal = 1688<br>vStart = 1025, vEnd = 1028, vTotal = 1066<br>h_total_disp = 0x9f00d2 hsync_strt_wid = 0xe053a<br>v_total_disp = 0x3ff0429 vsync_strt_wid = 0x30400<br>pixclock = 9259<br>freq = 10800<br>freq = 10800, PLL min = 12000, PLL max = 35000<br>ref_div = 60, ref_clk = 2700,
output_freq = 21600<br>ref_div = 60, ref_clk = 2700, output_freq = 21600<br>post div = 0x1<br>fb_div = 0x1e0<br>ppll_div_3 = 0x101e0<br>Console: switching to colour frame buffer device 160x64<br>radeonfb (0000:02:01.0): ATI Radeon QY<br>radeonfb_pci_register END<br>kobject_register failed for radeonfb (-17)<br>Call Trace:<br>[C000000000BFFB60] [C00000000000E97C] .show_stack+0x68/0x1b4 <br>(unreliable)<br>[C000000000BFFC10] [C00000000017EC54] .kobject_register+0x5c/0x8c<br>[C000000000BFFCA0] [C0000000001FAAF0] .bus_add_driver+0x7c/0x1b4<br>[C000000000BFFD50] [C0000000001FBDC8] .driver_register+0xac/0xc8<br>[C000000000BFFDD0] [C00000000018D084] .__pci_register_driver+0x8c/0xdc<br>[C000000000BFFE60] [C0000000003CCC9C] .radeonfb_old_init+0x164/0x188<br>[C000000000BFFF00] [C00000000000929C] .init+0x258/0x3d0<br>[C000000000BFFF90] [C00000000001E848] .kernel_thread+0x4c/0x68<br>vga16fb: unable to map device<br>vga16fb: probe of vga16fb.0 failed with error
-12</tt></tt></pre><p> 
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