From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Wed, 19 Sep 2001 16:46:10 -0400 To: linuxppc-dev@lists.linuxppc.org Subject: Accessing PCI IORESOURCE_IO Message-ID: <20010919164610.A346@kybl> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii From: Tomas Jura Sender: owner-linuxppc-dev@lists.linuxppc.org List-Id: Can anybody explain me how to access PCI card resource of type IORESOURCE_IO on PPC ? My video card can work only with 4MB memory instead 6MB ( vram:6144 not helps ) and I think that solution is in the non memory maped register on ATY chip. thanks Tomas P.S. I tried following way (which failed): rp=&pdev->resource[1]; addr = rp->start; if( request_region( addr, 32, "atyfb" ) == 0 ){ for( i = 0 ; i < 32; i++) printk( " %X",( unsigned ) inb( addr+i ) ); printk( "\n" ); release_region( addr, 32 ); } else printk("cannot request region 0x%lX\n", addr ); Resource 0, Flags 0x200, start 0x81000000, size 0x1000000 Resource 1, Flags 0x101, start 0xC00, size 0x100 Resource 2, Flags 0x200, start 0x80800000, size 0x1000 atyfb: using auxiliary register aperture atyfb: 3D RAGE PRO (PQFP, PCI) [0x4750 rev 0x7c] 6M SGRAM, 14.31818 MHz XTAL, 23 0 MHz PLL, 100 Mhz MCLK BUS_CNTL DAC_CNTL MEM_CNTL EXT_MEM_CNTL CRTC_GEN_CNTL DSP_CONFIG DSP_ON_OFF 6b2ea040 87010182 08651a79 e0000c01 03000600 001807ee 03c007cf ** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/