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Diffstat (limited to 'qemu/roms/openbios/utils/devbios/ChangeLog')
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diff --git a/qemu/roms/openbios/utils/devbios/ChangeLog b/qemu/roms/openbios/utils/devbios/ChangeLog new file mode 100644 index 000000000..3c8e5654d --- /dev/null +++ b/qemu/roms/openbios/utils/devbios/ChangeLog @@ -0,0 +1,295 @@ +NOTE! NOTE! NOTE! NOTE! NOTE! NOTE! NOTE! NOTE! NOTE! NOTE! NOTE! NOTE! + +/dev/bios is obsolete and no longer under development. Please adapt all +changes to the "flashrom" utility of LinuxBIOS. This utility can be found +at LinuxBIOSv2/utils/flashrom in the LinuxBIOS v2 repository. LinuxBIOS +is available at http://www.linuxbios.org/ + +I'm also looking for volunteers to port all features available in /dev/bios +to flashrom so /dev/bios can be dropped from the OpenBIOS tree. These features +include + +- block information about flash chips +- block wise writing of flash chips +- lots of supported flash chips and vendors. + +If you have questions, contact Stefan Reinauer <stepan@coresystems.de> + +NOTE! NOTE! NOTE! NOTE! NOTE! NOTE! NOTE! NOTE! NOTE! NOTE! NOTE! NOTE! + + +ChangeLog for /dev/bios + +** 2004/03/31 ******************************************************** + + * Added fix from Alex Beregszaszi to remove global *bios + +** 2004/03/05 ******************************************************** + + * fix compiling for 2.6 kernels. + +** 03/06/04 ********************************************************** + + * add SST49LF080A + * small 2.5 fix. + +** 02/06/10 ********************************************************** + + * some changes to detect pci cards firmware. + * pci cards firmware can be read even if flashing is not possible. + This is a new feature and might cause problems on some systems. + +** 02/04/16 ********************************************************** + + * reorganize Makefile, include .config from kernel. + * platform fixes for clean compilation. + +** 02/04/12 ********************************************************** + + * proprietary x86-64 support. + * change ruffian probe address + +** 02/03/28 ********************************************************** + + * proper implementation of system firmware detection on LX164 Alphas + * partly include jedec command cleanup patch from Pierrick Hascoet + <pierrick.hascoet@hydromel.net> + +** 02/03/11 ********************************************************** + + * only probe 512k on CS5530(A) + * add EON EN29F002 chips. + +** 02/02/22 ********************************************************** + + * rewrite major parts of bridge probing to make driver more generic. + * add Ali chipset support + * Saner iounmap() of flash devices. + +** 02/02/18 * 0.3.2 ************************************************** + + * change cs5530 driver to map high rom range instead of low one + and don't use positive decode. + * remove ruffian flag. Alpha (164LX/UX) almost works with pc code. + * don't rely on register defaults in intel 8xx driver. + * updated pci device list. more entries, join amd and via entry. + * fix error handling in chipset detection. + * add support for Reliance/ServerWorks chipsets + * enable 1M 512k on intel 4x0 chips where it's possible + * cleanup proc file handling + +** 02/02/17 ********************************************************** + + * rewrote chipset initialisation skeleton. + * fix pci bios (un)mapping. + * experimental support for AlphaPC 164UX (Ruffian) + (probes at 0xfffffffffffc0000 instead of 0xfffffc87C0000000 + * initial code for FWH mode chips + * Fix Toggle-Until-Ready code. + +** 02/02/16 ********************************************************** + + * iounmapping fixed. no more address space wasted. + * /proc/bios shows physical address now. dmesg shows + physical address and virtual memory area and offset. + +** 02/02/13 ********************************************************** + + * added i820/i830 chipset support + * added AMD 751/760MP(X) support + * added support for Itanium and 84460GX chipset + * added experimental support for some flash chips (ST, Intel, + Winbond) + * use spinlocks instead of hard cli() + +** 02/02/11 ********************************************************** + + * added GPL licence tag + * remove low bios area access tweaking for intel drivers + * speed up SST 39SF020 write + * fix compilation for 2.5 kernels + +** 02/02/05 ********************************************************** + + * added support for cs5530 (nsc/cyrix mediagx) chipset + * reorganized shadow/wp handling + * probe for 2mb high memory area instead of 256k only + +** 01/08/01 * 0.3.1 ************************************************** + + * compiles and works with Linux kernel 2.4 + * rewrote flash chip probing + * always use ioremap now + * flash chips above 128k should work transparent + * Support for newer VIA chipsets + +** 00/10/15 * 0.3.0pre1 ********************************************** + + * added patch from Eric Estabrook + * support for 256k flash chips on intel 430/440 chipsets and via vp3 + * split up source into several files + * Changes for Ruffian AXP machines. Does not work (yet). + +** 99/07/29 * 0.2.101 ************************************************ + + * Oh well.. 11 months? Impossible. I am a lazy guy. Implemented + some support for VIA Apollo VP3. Don't know whether it works, since + I don't have one. + +** 98/09/06 ********************************************************** + +patches by prumpf@jcsbs.lanobis.de: + * The pointer to bios_release in bios.c was on the flush pointer's + position. This caused Oopses. + * When bios_read was called with a file position after the actual end + of bios, it tried to read non-existant memory positions due to size + being unsigned (it isn't anymore) , causing spontaneous reboots on + my system + +** 98/08/22 ********************************************************** + + * Well,.. The diskless spectacle (0.2.100) was caused by a little bug + in in handling Intel PCI chipsets. Works now. + * Threw out the chipset_backout stuff. the PCI chipset handling should + always leave the machine in the same state it was before. ALWAYS. + +** 98/08/18 * 0.2.100 ************************************************ + + * Threw out the mem_type stuff. There are more important things than + this. + * Argh! After flashing fine on an Intel 28F001BT, the computer kept + hanging in an endless loop and refused writing the emergency boot + block to the end :-( There's some work until 0.3 is ready. + Implemented a timeout so that the system will not hang forever if + the flashchip behaves unexpected. + * Removed x86 probing in a loop. I think it never found anything else + but the system bios and *maybe* the graphics adapter bios. On the + other hand, it reconfigures some networking cards to silence. + Bad thing on diskless Linux boxes :) + +** 98/08/15 ********************************************************** + + * added some changes for intel to compile without warnings.. + +** 98/08/02 ********************************************************** + + * What a boring job! Checked some dozen of flash chip entries today + and added a lot of new ones. I bet it gets hard to find anything + this driver does not know. + +** 98/07/28 ********************************************************** + + * Yeah! Atmel Chips finally work.. These Atmel guys are really weird. + * Testing last instead of first written byte now, when polling for the + end of a write access. + +** 98/07/28 ********************************************************** + + * Well, I am definitely spending too much time in IRC, but detecting + PCI cards' bioses works now (at least for me) + * Thrown out some obsolete stuff. + * Declared PCI and Flash reading/writing __inline__. Don't know, + whether this is a good idea. But let's try it for a while. + * Aaaargh! Some major mistakes in handling whether a flash has to + be erased before programming. FIXED! + * Even worse. An endless loop made it into writing in 0.2.99. Sorry! + I had no chance to test writing on an intel board with that release. + At least my warning, not to write, made sense. + * Intel flashchips are supported now!! It's at least tested on my + Alpha AXP LX164 Board (1MByte i28f008 chip) But all Intel flash chips + seem to work in the same way. + * Atmel 64kByte flash chips supported. + +** 98/07/27 ********************************************************** + + * Split up flash_probe in 2 parts to be able to expand probing on + PCI bioses and others correctly. + * Turned around 1st and 2nd probing codes. This is funny, Atmel + Flashroms give some wrong numbers if they are probed with the + 0x80/0x60 way. I only hope that no flashchips react on the + 0x90 method with wrong values. + +** 98/07/19 * V0.2.99 ************************************************ + + * Reading the flashchip works now on Alpha AXP (at least on my LX164 + Board) + Writing ought to work, too, but Intel Flashchips are not supported + yet. This should be done until 0.3.0. + NOTE: I have no idea whether this driver still works on intel + boards or not. There have been too many changes. Please try, but + do not flash with this release of the driver. + * Minor Changes and fixes. Naming scheme changed a bit. This version + might work on James Mastros' machine again ?!? + +** 98/07/11 ********************************************************** + + * Started porting stuff to Alpha AXP architecture to continue testing + the flashing routines. We have a lot of tests next week, so I + won't get much stuff done.. + Porting to AXP seems to be much more work than I thought. It may + take some time until the next version is released. + * Moved major number again. This time we have an official major + number for /dev/bios. Thanks to Hans Peter Anvin. + (Well, we have this one since May 1st, sorry for the delay) + +** 98/06/26 * V0.2.95 ************************************************ + + * added all Manufacturer IDs from the JEDEC standards publication. + * sorry for not having released a new version since months, but + my x86 machine died and I have no chance to do any testing right + now. I guess I must get a new Intel box, as Alpha AXP are all + delivered with the same Intel flash chips. + +** 98/04/30 * V0.2.9 ************************************************* + + * removed ioctls. They have been really unneccesary and did not fit + into the new driver layout. + * cleaned up the code. Hey, it should be readable again. + * Moved device minors from 10+ to 0+ + * Rewrote most of the documentation + * changed intel shadowing routines. Now original values are saved + and shadowing is turned off for 0xc0000 to 0xdffff, too (This + was needed to support 2MBit system bios flash chips. Thanks again + to Matthew Harrell for intensive testing. + * Removed dirty hacks from bios_read_proc() + * Added some fields to struct flashdevice to support all ROM types, + not only flash roms. Probing for other types still missing. + * Implemented probing for some strange Winbond chips (0x80/0x20). + +** 98/04/27 * V0.2.8 ************************************************* + + *** Attention *** This version has a lot of changes since + 0.2.7, so be very careful, when testing. Things may + be broken that used to work. + + * Rewrote big parts of the driver to (theoretically) support + multiple flash chips and/or ROM areas. + * Tried to implement support for 2MBit System BIOS chips, but + I have no idea, whether it works. I don't have one. + * added some more OPTi, SiS and VIA PCI chipsets to chipset list. + They have no function yet, though. + * Some weird computers have an ISA bridge, but don't have it declared + as one. Now probing for known ISA bridge IDs. (Thanks to Matthew + Harrell for reporting this.) + * Added some new flashchip IDs and made some old ones work. + +** 98/04/24 * V0.2.7 ************************************************* + + * rewrote shadowing and wp functions to use a pci_functions structure + This makes it very easy to include new PCI chipsets. + * function chipset_init() detects PCI chipset. + * modversions support. Thanks to Matthew Harrell. + * moved PCI bridge detection to chipset_init() + +** 98/04/23 * V0.2.6 ************************************************* + + * repaired flashchip_ready_toggle and flashchip_ready_poll. + * Set WRITE_DELAY to 300 as it should be (works now) + * NOTE: These two changes make the operation of /dev/bios + theoretically correct, and by that quite secure. + +********************************************************************** + +There was no ChangeLog for versions prior to 0.2.6 + +Stefan Reinauer, <stepan@openbios.org> |