Messages in this thread Patch in this message |  | | Date | Thu, 05 Sep 2002 21:48:30 +0200 | From | Andreas Steinmetz <> | Subject | 2.4.20pre5 atyfb patch for ATI Rage Mobility P/M AGP |
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The attached patch enables the usage of the ATI framebuffer for the ATI Rage Mobility of my Gateway Solo 9300 Laptop. I did send this patch to Geert Uytterhoeven in September 2001 but he doesn't seem interested. There are, however, more people for which the standard atyfb doesn't work (garbled display). These reports can be easily found using search engines. I do hope that this patch enables atyfb for them. It doesn't matter if this patch is never accepted, it was already ignored for a year by the maintainer and in a few years the problematic laptops will be dead anyway...
System info regarding ATI:
lspci output:
01:00.0 VGA compatible controller: ATI Technologies Inc Rage Mobility P/M AGP 2x (rev 64)
System boot info:
atyfb: using auxiliary register aperture atyfb: 3D RAGE Mobility (PCI) [0x4c4d rev 0x64] 8M SGRAM, 29.498928 MHz XTAL, 23 5 MHz PLL, 63 Mhz MCLK Console: switching to colour frame buffer device 128x48 fb0: ATY Mach64 frame buffer device on PCI -- Andreas Steinmetz D.O.M. Datenverarbeitung GmbH
diff -rNu linux/drivers/video/aty/atyfb_base.c linux-custom/drivers/video/aty/atyfb_base.c --- linux/drivers/video/aty/atyfb_base.c 2002-08-03 02:39:45.000000000 +0200 +++ linux-custom/drivers/video/aty/atyfb_base.c 2002-09-05 15:13:11.000000000 +0200 @@ -359,7 +359,7 @@ { 0x4c50, 0x4c50, 0x00, 0x00, m64n_ltp_p, 230, 100, M64F_GT | M64F_INTEGRATED | M64F_RESET_3D | M64F_GTB_DSP }, /* 3D RAGE Mobility */ - { 0x4c4d, 0x4c4d, 0x00, 0x00, m64n_mob_p, 230, 50, M64F_GT | M64F_INTEGRATED | M64F_RESET_3D | M64F_GTB_DSP | M64F_MOBIL_BUS }, + { 0x4c4d, 0x4c4d, 0x00, 0x00, m64n_mob_p, 235, 63, M64F_GT | M64F_INTEGRATED | M64F_RESET_3D | M64F_GTB_DSP | M64F_MOBIL_BUS | M64F_XL_DLL }, { 0x4c4e, 0x4c4e, 0x00, 0x00, m64n_mob_a, 230, 50, M64F_GT | M64F_INTEGRATED | M64F_RESET_3D | M64F_GTB_DSP | M64F_MOBIL_BUS }, #endif /* CONFIG_FB_ATY_CT */ }; @@ -754,7 +754,10 @@ aty_set_crtc(info, &par->crtc); aty_st_8(CLOCK_CNTL + info->clk_wr_offset, 0, info); /* better call aty_StrobeClock ?? */ - aty_st_8(CLOCK_CNTL + info->clk_wr_offset, CLOCK_STROBE, info); + if (M64_HAS(MOBIL_BUS)&&M64_HAS(XL_DLL)) + aty_st_8(CLOCK_CNTL + info->clk_wr_offset, CLOCK_STROBE|CLOCK_SEL|CLOCK_DIV, info); + else + aty_st_8(CLOCK_CNTL + info->clk_wr_offset, CLOCK_STROBE, info); info->dac_ops->set_dac(info, &par->pll, par->crtc.bpp, accelmode); info->pll_ops->set_pll(info, &par->pll); diff -rNu linux/drivers/video/aty/mach64_ct.c linux-custom/drivers/video/aty/mach64_ct.c --- linux/drivers/video/aty/mach64_ct.c 2001-07-31 23:43:29.000000000 +0200 +++ linux-custom/drivers/video/aty/mach64_ct.c 2002-09-05 15:13:11.000000000 +0200 @@ -204,6 +204,11 @@ break; } + if (M64_HAS(MOBIL_BUS)&&M64_HAS(XL_DLL)) { + pll->pll_ext_cntl |= 0xc8; + pll->mclk_fb_div -= 1; + } + pll->pll_vclk_cntl = 0x03; /* VCLK = PLL_VCLK/VCLKx_POST */ pll->vclk_post_div = vpostdiv; } @@ -250,8 +255,10 @@ else aty_st_pll(DLL_CNTL, 0xa0, info); aty_st_pll(VFC_CNTL, 0x1b, info); - aty_st_le32(DSP_CONFIG, pll->ct.dsp_config, info); - aty_st_le32(DSP_ON_OFF, pll->ct.dsp_on_off, info); + if (!(M64_HAS(MOBIL_BUS)&&M64_HAS(XL_DLL))) { + aty_st_le32(DSP_CONFIG, pll->ct.dsp_config, info); + aty_st_le32(DSP_ON_OFF, pll->ct.dsp_on_off, info); + } } }
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