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File: [local] / sys / arch / hppa64 / include / nvm.h (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:05:55 2008 UTC (16 years, 5 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: nvm.h,v 1.1 2005/04/01 10:40:48 mickey Exp $ */ /* * Copyright (c) 1990, 1994 The University of Utah and * the Computer Systems Laboratory at the University of Utah (CSL). * All rights reserved. * * Permission to use, copy, modify and distribute this software is hereby * granted provided that (1) source code retains these copyright, permission, * and disclaimer notices, and (2) redistributions including binaries * reproduce the notices in supporting documentation, and (3) all advertising * materials mentioning features or use of this software display the following * acknowledgement: ``This product includes software developed by the * Computer Systems Laboratory at the University of Utah.'' * * THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS * IS" CONDITION. THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF * ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * CSL requests users of this software to return to csl-dist@cs.utah.edu any * improvements that they make and grant CSL redistribution rights. * * Utah $Hdr: nvm.h 1.4 94/12/14$ * Author: Jeff Forys, University of Utah CSL */ #ifndef _MACHINE_NVM_H_ #define _MACHINE_NVM_H_ /* * The PDC provides access to Non-Volatile Memory (NVM). If this * is implemented (it's HVERSION dependent), the first 256 bytes * are formatted as follows: * * 0x000 +----------------------------+ * | Implementation information | * 0x024 +----------------------------+ * | | * | IPL information | * | | * 0x080 +----------------------------+ * | | * | | * | OS Panic information | * | | * | | * 0x100 +----------------------------+ * * It appears that there are at least 256 bytes of NVM, and only * the "OS Panic information" is not architected. This means that * we can use locations 0x80 - 0xFF for saving information across * boots (e.g. boot flags and boot device). I think we should use * the higher portions of this space first, to avoid conflicting * with possible future HP-PA plans for the NVM. * * The PDC requires that NVM be read/written to in word multiples. */ /* * Boot flags and boot device (0xF4 - 0xFF). */ #define NVM_BOOTDATA 0xF4 /* location of bootdata in NVM */ #define NVM_BOOTMAGIC 0xACCEDE /* magic used for bootdata cksum */ #define NVM_BOOTCKSUM(bd) \ ((unsigned int) NVM_BOOTMAGIC + (bd).flags + (bd).device) struct bootdata { unsigned int cksum; /* NVM_BOOTMAGIC + flags + device */ unsigned int flags; /* boot flags */ unsigned int device; /* boot device */ }; #endif /* _MACHINE_NVM_H_ */