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File: [local] / sys / arch / m68k / fpsp / x_bsun.sa (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:07:07 2008 UTC (16 years, 6 months ago) by nbrk
Import of OpenBSD 4.2 release kernel tree with initial code to support Jornada 720/728, StrongARM 1110-based handheld PC. At this point kernel roots on NFS and boots into vfs_mountroot() and traps. What is supported: - glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode (needs some palette tweaks for non black/white/blue colors, i think) - saic, SA11x0 interrupt controller (needs cleanup) - sacom, SA11x0 UART (supported only as boot console for now) - SA11x0 GPIO controller fully supported (but can't handle multiple interrupt handlers on one gpio pin) - sassp, SSP port on SA11x0 that attaches spibus - Jornada microcontroller (jmcu) to control kbd, battery, etc throught the SPI bus (wskbd attaches on jmcu, but not tested) - tod functions seem work - initial code for SA-1111 (chip companion) : this is TODO Next important steps, i think: - gpio and intc on sa1111 - pcmcia support for sa11x0 (and sa1111 help logic) - REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs) - root on wd0! (using already supported PCMCIA-ATA) |
* $OpenBSD: x_bsun.sa,v 1.3 2002/01/23 19:16:09 fgsch Exp $ * $NetBSD: x_bsun.sa,v 1.2 1994/10/26 07:50:22 cgd Exp $ * MOTOROLA MICROPROCESSOR & MEMORY TECHNOLOGY GROUP * M68000 Hi-Performance Microprocessor Division * M68040 Software Package * * M68040 Software Package Copyright (c) 1993, 1994 Motorola Inc. * All rights reserved. * * THE SOFTWARE is provided on an "AS IS" basis and without warranty. * To the maximum extent permitted by applicable law, * MOTOROLA DISCLAIMS ALL WARRANTIES WHETHER EXPRESS OR IMPLIED, * INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A * PARTICULAR PURPOSE and any warranty against infringement with * regard to the SOFTWARE (INCLUDING ANY MODIFIED VERSIONS THEREOF) * and any accompanying written materials. * * To the maximum extent permitted by applicable law, * IN NO EVENT SHALL MOTOROLA BE LIABLE FOR ANY DAMAGES WHATSOEVER * (INCLUDING WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS * PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSINESS INFORMATION, OR * OTHER PECUNIARY LOSS) ARISING OF THE USE OR INABILITY TO USE THE * SOFTWARE. Motorola assumes no responsibility for the maintenance * and support of the SOFTWARE. * * You are hereby granted a copyright license to use, modify, and * distribute the SOFTWARE so long as this entire notice is retained * without alteration in any modified and/or redistributed versions, * and that such modified versions are clearly identified as such. * No licenses are granted by implication, estoppel or otherwise * under any patents or trademarks of Motorola, Inc. * * x_bsun.sa 3.3 7/1/91 * * fpsp_bsun --- FPSP handler for branch/set on unordered exception * * Copy the PC to FPIAR to maintain 881/882 compatibility * * The real_bsun handler will need to perform further corrective * measures as outlined in the 040 User's Manual on pages * 9-41f, section 9.8.3. * X_BSUN IDNT 2,1 Motorola 040 Floating Point Software Package section 8 include fpsp.h xref real_bsun xdef fpsp_bsun fpsp_bsun: * link a6,#-LOCAL_SIZE fsave -(a7) movem.l d0-d1/a0-a1,USER_DA(a6) fmovem.x fp0-fp3,USER_FP0(a6) fmovem.l fpcr/fpsr/fpiar,USER_FPCR(a6) * move.l EXC_PC(a6),USER_FPIAR(a6) * movem.l USER_DA(a6),d0-d1/a0-a1 fmovem.x USER_FP0(a6),fp0-fp3 fmovem.l USER_FPCR(a6),fpcr/fpsr/fpiar frestore (a7)+ unlk a6 bra.l real_bsun * end