coreboot November 2007

coreboot@coreboot.org

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397 discussions

[LinuxBIOS] [PATCH] AMD CPU ID fixes and additions
by Uwe Hermann 29 Nov '07

29 Nov '07

See patch. There are some comment updates (datasheet now says SH-CG instead of SH7-CG, for example), and also 2-3 new CPU IDs. I only looked at the AMD Athlon64 datasheet, other parts might need updates, too. Uwe. -- http://www.hermann-uwe.de | http://www.holsham-traders.de http://www.crazy-hacks.org | http://www.unmaintained-free-software.org

2 2

[LinuxBIOS] r2989 - trunk/LinuxBIOSv2/src/cpu/amd/model_fxx
by svn＠openbios.org 29 Nov '07

29 Nov '07

Author: uwe Date: 2007-11-29 02:25:29 +0100 (Thu, 29 Nov 2007) New Revision: 2989 Modified: trunk/LinuxBIOSv2/src/cpu/amd/model_fxx/model_fxx_init.c Log: Update AMD CPU IDs in model_fxx_init.c with information from the latest version (Rev. 3.73, October 2007) of the 'Revision Guide for AMD Athlon 64 and AMD Opteron Processors' datasheet. Also, add information about the CPU socket for each ID (as per datasheet). Signed-off-by: Uwe Hermann <uwe(a)hermann-uwe.de> Acked-by: Jordan Crouse <jordan.crouse(a)amd.com> Modified: trunk/LinuxBIOSv2/src/cpu/amd/model_fxx/model_fxx_init.c =================================================================== --- trunk/LinuxBIOSv2/src/cpu/amd/model_fxx/model_fxx_init.c 2007-11-27 01:24:46 UTC (rev 2988) +++ trunk/LinuxBIOSv2/src/cpu/amd/model_fxx/model_fxx_init.c 2007-11-29 01:25:29 UTC (rev 2989) @@ -562,42 +562,44 @@ }; static struct cpu_device_id cpu_table[] = { #if K8_REV_F_SUPPORT == 0 - { X86_VENDOR_AMD, 0xf50 }, /* B3 */ - { X86_VENDOR_AMD, 0xf51 }, /* SH7-B3 */ - { X86_VENDOR_AMD, 0xf58 }, /* SH7-C0 */ - { X86_VENDOR_AMD, 0xf48 }, + { X86_VENDOR_AMD, 0xf40 }, /* SH-B0 (socket 754) */ + { X86_VENDOR_AMD, 0xf50 }, /* SH-B0 (socket 940) */ + { X86_VENDOR_AMD, 0xf51 }, /* SH-B3 (socket 940) */ + { X86_VENDOR_AMD, 0xf58 }, /* SH-C0 (socket 940) */ + { X86_VENDOR_AMD, 0xf48 }, /* SH-C0 (socket 754) */ + { X86_VENDOR_AMD, 0xf5a }, /* SH-CG (socket 940) */ + { X86_VENDOR_AMD, 0xf4a }, /* SH-CG (socket 754) */ + { X86_VENDOR_AMD, 0xf7a }, /* SH-CG (socket 939) */ + { X86_VENDOR_AMD, 0xfc0 }, /* DH-CG (socket 754) */ + { X86_VENDOR_AMD, 0xfe0 }, /* DH-CG (socket 754) */ + { X86_VENDOR_AMD, 0xff0 }, /* DH-CG (socket 939) */ + { X86_VENDOR_AMD, 0xf82 }, /* CH-CG (socket 754) */ + { X86_VENDOR_AMD, 0xfb2 }, /* CH-CG (socket 939) */ - { X86_VENDOR_AMD, 0xf5A }, /* SH7-CG */ - { X86_VENDOR_AMD, 0xf4A }, - { X86_VENDOR_AMD, 0xf7A }, - { X86_VENDOR_AMD, 0xfc0 }, /* DH7-CG */ - { X86_VENDOR_AMD, 0xfe0 }, - { X86_VENDOR_AMD, 0xff0 }, - { X86_VENDOR_AMD, 0xf82 }, /* CH7-CG */ - { X86_VENDOR_AMD, 0xfb2 }, //AMD_D0_SUPPORT - { X86_VENDOR_AMD, 0x10f50 }, /* SH7-D0 */ - { X86_VENDOR_AMD, 0x10f40 }, - { X86_VENDOR_AMD, 0x10f70 }, - { X86_VENDOR_AMD, 0x10fc0 }, /* DH7-D0 */ - { X86_VENDOR_AMD, 0x10ff0 }, - { X86_VENDOR_AMD, 0x10f80 }, /* CH7-D0 */ - { X86_VENDOR_AMD, 0x10fb0 }, + { X86_VENDOR_AMD, 0x10f50 }, /* SH-D0 (socket 940) */ + { X86_VENDOR_AMD, 0x10f40 }, /* SH-D0 (socket 754) */ + { X86_VENDOR_AMD, 0x10f70 }, /* SH-D0 (socket 939) */ + { X86_VENDOR_AMD, 0x10fc0 }, /* DH-D0 (socket 754) */ + { X86_VENDOR_AMD, 0x10ff0 }, /* DH-D0 (socket 939) */ + { X86_VENDOR_AMD, 0x10f80 }, /* CH-D0 (socket 754) */ + { X86_VENDOR_AMD, 0x10fb0 }, /* CH-D0 (socket 939) */ + //AMD_E0_SUPPORT - { X86_VENDOR_AMD, 0x20f50 }, /* SH8-E0*/ + { X86_VENDOR_AMD, 0x20f50 }, /* SH-E0 */ { X86_VENDOR_AMD, 0x20f40 }, { X86_VENDOR_AMD, 0x20f70 }, - { X86_VENDOR_AMD, 0x20fc0 }, /* DH8-E0 */ /* DH-E3 */ - { X86_VENDOR_AMD, 0x20ff0 }, - { X86_VENDOR_AMD, 0x20f10 }, /* JH8-E1 */ - { X86_VENDOR_AMD, 0x20f30 }, - { X86_VENDOR_AMD, 0x20f51 }, /* SH-E4 */ - { X86_VENDOR_AMD, 0x20f71 }, - { X86_VENDOR_AMD, 0x20f42 }, /* SH-E5 */ - { X86_VENDOR_AMD, 0x20ff2 }, /* DH-E6 */ - { X86_VENDOR_AMD, 0x20fc2 }, - { X86_VENDOR_AMD, 0x20f12 }, /* JH-E6 */ - { X86_VENDOR_AMD, 0x20f32 }, + { X86_VENDOR_AMD, 0x20fc0 }, /* DH-E3 (socket 754) */ + { X86_VENDOR_AMD, 0x20ff0 }, /* DH-E3 (socket 939) */ + { X86_VENDOR_AMD, 0x20f10 }, /* JH-E1 (socket 940) */ + { X86_VENDOR_AMD, 0x20f51 }, /* SH-E4 (socket 940) */ + { X86_VENDOR_AMD, 0x20f71 }, /* SH-E4 (socket 939) */ + { X86_VENDOR_AMD, 0x20fb1 }, /* BH-E4 (socket 939) */ + { X86_VENDOR_AMD, 0x20f42 }, /* SH-E5 (socket 754) */ + { X86_VENDOR_AMD, 0x20ff2 }, /* DH-E6 (socket 939) */ + { X86_VENDOR_AMD, 0x20fc2 }, /* DH-E6 (socket 754) */ + { X86_VENDOR_AMD, 0x20f12 }, /* JH-E6 (socket 940) */ + { X86_VENDOR_AMD, 0x20f32 }, /* JH-E6 (socket 939) */ { X86_VENDOR_AMD, 0x30ff2 }, /* E4 ? */ #endif

1 0

[LinuxBIOS] r532 - LinuxBIOSv3/device
by svn＠openbios.org 29 Nov '07

29 Nov '07

Author: alex Date: 2007-11-29 02:23:08 +0100 (Thu, 29 Nov 2007) New Revision: 532 Modified: LinuxBIOSv3/device/pci_rom.c Log: The attached patch adds code to checksum the pci extension rom and warn if the stored and calculated checksum differ. There is no easy way to check extension ROMs in the current machine for correct signatures, but you could copy out the memory between 0xc0000 - 0xf00000 from /dev/mem and search for extension headers in it (see the code in pci_rom.c). Signed-off-by: Alex Beregszaszi <alex(a)rtfs.hu> Acked-by: Stefan Reinauer <stepan(a)coresystems.de> Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006(a)gmx.net> Modified: LinuxBIOSv3/device/pci_rom.c =================================================================== --- LinuxBIOSv3/device/pci_rom.c 2007-11-28 22:51:31 UTC (rev 531) +++ LinuxBIOSv3/device/pci_rom.c 2007-11-29 01:23:08 UTC (rev 532) @@ -33,6 +33,8 @@ unsigned long rom_address; struct rom_header *rom_header; struct pci_data *rom_data; + unsigned int i; + unsigned char sum = 0, *rom_bytes; if (dev->on_mainboard) { /* In case some device PCI_ROM_ADDRESS can not be set @@ -67,7 +69,15 @@ le32_to_cpu(rom_header->signature)); return NULL; } + + /* checksum */ + rom_bytes = (unsigned char *)rom_address; + for (i = 0; i < rom_header->size * 512; i++) + sum += *(rom_bytes + i); + if (sum != 0) + printk(BIOS_ALERT, "Incorrent Expansion ROM checksum (%02x != 0)\n", sum); + rom_data = (struct pci_data *)((unsigned char *)rom_header + le32_to_cpu(rom_header->data));

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[LinuxBIOS] [PATCH] pci_rom.c checksum extension rom
by Alex Beregszaszi 29 Nov '07

29 Nov '07

Hi, the attached patch adds code to checksum the pci extension rom and stop if the stored and calculated checksum differ. -- Alex

6 15

[LinuxBIOS] [PATCH] v3: fix SHARED macros in the non-_MAINOBJECT case
by Carl-Daniel Hailfinger 28 Nov '07

28 Nov '07

Fix SHARED macros in the non-_MAINOBJECT case. The patch I sent earlier (which was committed) was unfortunately generated from the wrong tree. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006(a)gmx.net> Index: LinuxBIOSv3-fixsharedextern/include/shared.h =================================================================== --- LinuxBIOSv3-fixsharedextern/include/shared.h (Revision 518) +++ LinuxBIOSv3-fixsharedextern/include/shared.h (Arbeitskopie) @@ -43,7 +43,7 @@ ret (*func)(args) attr= stage0_##func #else #define EXTERN(func, ret, attr, args...) \ - ret *func(args) attr + extern ret (*func)(args) attr #endif #else

2 3

[LinuxBIOS] r531 - LinuxBIOSv3/include
by svn＠openbios.org 28 Nov '07

28 Nov '07

Author: hailfinger Date: 2007-11-28 23:51:31 +0100 (Wed, 28 Nov 2007) New Revision: 531 Modified: LinuxBIOSv3/include/shared.h Log: Fix SHARED macros in the non-_MAINOBJECT case. The patch I sent earlier (which was committed) was unfortunately generated from the wrong tree. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006(a)gmx.net> Acked-by: Ronald G. Minnich <rminnich(a)gmail.com> Modified: LinuxBIOSv3/include/shared.h =================================================================== --- LinuxBIOSv3/include/shared.h 2007-11-28 22:50:00 UTC (rev 530) +++ LinuxBIOSv3/include/shared.h 2007-11-28 22:51:31 UTC (rev 531) @@ -43,7 +43,7 @@ ret (*func)(args) attr= stage0_##func #else #define EXTERN(func, ret, attr, args...) \ - ret *func(args) attr + extern ret (*func)(args) attr #endif #else

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[LinuxBIOS] r530 - in LinuxBIOSv3: arch/x86 include lib
by svn＠openbios.org 28 Nov '07

28 Nov '07

Author: hailfinger Date: 2007-11-28 23:50:00 +0100 (Wed, 28 Nov 2007) New Revision: 530 Modified: LinuxBIOSv3/arch/x86/stage1.c LinuxBIOSv3/include/lar.h LinuxBIOSv3/lib/lar.c Log: Consolidate all multiple segment handling into lib/lar.c:load_file_segments() and greatly simplify arch/x86/stage1.c code as a result. While I'm at it, improve the LAR segmentation abstraction. Stage 1 code should not have to care about internal representation of segments, that knowledge belongs into lib/lar.c. Constification of most function parameters in lib/lar.c led to a few other now obvious code removals. Build tested and runtime tested in Qemu. Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006(a)gmx.net> Acked-by: Ronald G. Minnich <rminnich(a)gmail.com> Modified: LinuxBIOSv3/arch/x86/stage1.c =================================================================== --- LinuxBIOSv3/arch/x86/stage1.c 2007-11-27 19:06:45 UTC (rev 529) +++ LinuxBIOSv3/arch/x86/stage1.c 2007-11-28 22:50:00 UTC (rev 530) @@ -77,7 +77,6 @@ struct mem_file archive, result; int elfboot_mem(struct lb_memory *mem, void *where, int size); void *entry; - int i; /* we can't statically init this hack. */ unsigned char faker[64]; @@ -161,11 +160,9 @@ /* Turn off Cache-As-Ram */ disable_car(); - entry = load_file(&archive, "normal/stage2.o/segment0"); + entry = load_file_segments(&archive, "normal/stage2.o"); if (entry == (void *)-1) - die("FATAL: Failed loading stage2 segment0."); - if (load_file(&archive, "normal/stage2.o/segment1") == (void *)-1) - die("FATAL: Failed loading stage2 segment1."); + die("FATAL: Failed loading stage2."); ret = run_address(entry); if (ret) die("FATAL: Failed in stage2 code."); @@ -176,26 +173,8 @@ if (! ret) legacy(&archive, "normal/payload", (void *)UNCOMPRESS_AREA, mem); - - /* new style lar boot. Install all the files in memory. - * By convention we take the entry point from the first - * one. Look for a cmdline as well. - */ - for(i = 0, entry = (void *)0; ;i++) { - char filename[64]; - void *newentry; - sprintf(filename, "normal/payload/segment%d", i); - archive.len = *(u32 *)0xfffffff4; - archive.start =(void *)(0UL-archive.len); - newentry = load_file(&archive, filename); - printk(BIOS_SPEW, "newentry is %p\n", newentry); - if (newentry == (void *)-1) - break; - if (! entry) - entry = newentry; - } - printk(BIOS_SPEW, "all loaded, entry %p\n", entry); - if (entry) + entry = load_file_segments(&archive, "normal/payload"); + if (entry != (void*)-1) run_address(entry); die("FATAL: No usable payload found.\n"); Modified: LinuxBIOSv3/include/lar.h =================================================================== --- LinuxBIOSv3/include/lar.h 2007-11-27 19:06:45 UTC (rev 529) +++ LinuxBIOSv3/include/lar.h 2007-11-28 22:50:00 UTC (rev 530) @@ -82,10 +82,11 @@ }; /* Prototypes. */ -int find_file(struct mem_file *archive, const char *filename, struct mem_file *result); -int copy_file(struct mem_file *archive, const char *filename, void *where); -int run_file(struct mem_file *archive, const char *filename, void *where); -int execute_in_place(struct mem_file *archive, const char *filename); +int find_file(const struct mem_file *archive, const char *filename, struct mem_file *result); +int copy_file(const struct mem_file *archive, const char *filename, void *where); +int run_file(const struct mem_file *archive, const char *filename, void *where); +int execute_in_place(const struct mem_file *archive, const char *filename); int run_address(void *f); -void *load_file(struct mem_file *archive, const char *filename); +void *load_file(const struct mem_file *archive, const char *filename); +void *load_file_segments(const struct mem_file *archive, const char *filename); #endif /* LAR_H */ Modified: LinuxBIOSv3/lib/lar.c =================================================================== --- LinuxBIOSv3/lib/lar.c 2007-11-27 19:06:45 UTC (rev 529) +++ LinuxBIOSv3/lib/lar.c 2007-11-28 22:50:00 UTC (rev 530) @@ -56,7 +56,7 @@ * returns 0 on success, -1 otherwise */ -int find_file(struct mem_file *archive, const char *filename, struct mem_file *result) +int find_file(const struct mem_file *archive, const char *filename, struct mem_file *result) { char *walk, *fullname; struct lar_header *header; @@ -145,7 +145,7 @@ return 1; } -static int process_file(struct mem_file *archive, void *where) +static int process_file(const struct mem_file *archive, void *where) { printk(BIOS_SPEW, "LAR: Compression algorithm #%i used\n", archive->compression); /* no compression */ @@ -175,6 +175,37 @@ } /** + * Given a file name, search the LAR for all segments of it, and load them + * into memory, using the loadaddress pointer in the mem_file struct. + * @param archive A descriptor for current archive. + * @param filename filename to find + * returns entry on success, (void*)-1 otherwise + * FIXME: Look for a cmdline as well. + */ +void *load_file_segments(const struct mem_file *archive, const char *filename) +{ + void *entry = NULL; + void *newentry; + int i; + char tmpname[64]; + + for(i = 0, entry = (void *)0; ;i++) { + sprintf(tmpname, "%s/segment%d", filename, i); + newentry = load_file(archive, tmpname); + if (newentry == (void *)-1) + break; + if (!entry) + entry = newentry; + } + if (!entry) { + printk(BIOS_INFO, "LAR: load_file_segments: Failed for %s\n", filename); + return (void *)-1; + } + printk(BIOS_SPEW, "LAR: load_file_segments: All loaded, entry %p\n", entry); + return entry; +} + +/** * Given a file name in the LAR , search for it, and load it into memory, using * the loadaddress pointer in the mem_file struct. * @param archive A descriptor for current archive. @@ -182,7 +213,7 @@ * returns entry on success, (void*)-1 otherwise */ -void *load_file(struct mem_file *archive, const char *filename) +void *load_file(const struct mem_file *archive, const char *filename) { int ret; struct mem_file result; @@ -212,7 +243,7 @@ * @param where pointer to where to load the data * returns 0 on success, -1 otherwise */ -int copy_file(struct mem_file *archive, const char *filename, void *where) +int copy_file(const struct mem_file *archive, const char *filename, void *where) { int ret; struct mem_file result; @@ -229,55 +260,30 @@ /** - * Given a file name in the LAR , search for it, and load it into memory, - * using the passed-in pointer as the address; jump to the file. - * If the passed-in pointer is (void *)-1, then execute the file in place. + * Given a file name in the LAR , search for it, and execute it in place. * @param archive A descriptor for current archive. * @param filename filename to find - * @param where pointer to where to load the data * returns 0 on success, -1 otherwise */ -int run_file(struct mem_file *archive, const char *filename, void *where) +int execute_in_place(const struct mem_file *archive, const char *filename) { struct mem_file result; int ret; + void *where; - if ((u32) where != 0xFFFFFFFF) { - if (copy_file(archive, filename, where)) { - printk(BIOS_INFO, - "LAR: Run file %s failed: No such file.\n", - filename); - return 1; - } - } else { /* XIP */ - if (find_file(archive, filename, &result)) { - printk(BIOS_INFO, - "LAR: Run file %s failed: No such file.\n", - filename); - return 1; - } - if (result.compression != 0) { - printk(BIOS_INFO, - "LAR: Run file %s failed: Compressed file" - " not supported for in-place execution\n", - filename); - return 1; - } - where = result.start + (u32)result.entry; + if (find_file(archive, filename, &result)) { + printk(BIOS_INFO, "LAR: Run file %s failed: No such file.\n", + filename); + return 1; } + if (result.compression != 0) { + printk(BIOS_INFO, "LAR: Run file %s failed: Compressed file" + " not supported for in-place execution\n", filename); + return 1; + } + where = result.start + (u32)result.entry; printk(BIOS_SPEW, "Entry point is %p\n", where); ret = run_address(where); printk(BIOS_SPEW, "run_file returns with %d\n", ret); return ret; } - -/** - * Given a file name in the LAR , search for it, and execute it in place. - * @param archive A descriptor for current archive. - * @param filename filename to find - * returns 0 on success, -1 otherwise - */ -int execute_in_place(struct mem_file *archive, const char *filename) -{ - return run_file(archive, filename, (void *) 0xFFFFFFFF); -}

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Re: [LinuxBIOS] flashrom support for AMD CS5536
by Darmawan Salihun 28 Nov '07

28 Nov '07

Alan Alexander wrote: > Many thanks to all of the help regarding flashing of the Pm49fl004 > device through the AMD CS5536 chipset on my IEI Nano LX board. > I am now able to erase and write the entire 512KByte region as desired. > > Unfortunately, it would appear that I have overlooked something in my > quest for an automatic way to modify the legacy bios settings in our > embedded Linux devices. Although I can now alter the BIOS at my hearts > content, it seems that the actual BIOS settings themselves are stored > elsewhere. For example: > > 0) BIOS settings are set to configuration 'a' > 1) I make a change to the Legacy BIOS settings (using the BIOS boot > menu) - configuration now 'b' (not equal to 'a') > 2) I save the BIOS image (with configuration 'b') from the Pm49fl004 > device via flashrom -r. > 3) I revert the BIOS settings back to configuration 'a' using the BIOS > boot menu. > 4) I re-apply the saved image ('b') using flashrom -w and verify it with > flashrom -v > 5) On reboot the settings change applied in configuration 'b' are > missing. > > So, my conclusion is that the actual BIOS settings must be stored > elsewhere. I suspect that this is probably obvious to you guys. The BIOS setting is stored in a Non-Volatile RAM, known as the CMOS chip. (actually it's better to call it NVRAM but most people call it the CMOS chip). This chip is battery backed, i.e. powered by battery. You can see the battery in the board in all likelihood ;-) (Its shape is round, IIRC it's a Li-Ion battery). The CMOS contents are accessed through I/O port 70h,71h, and in some chipset also through 72h and 73h. > Could someone please tell me if this is the usual setup (i.e. BIOS flash > + some other storage device for settings). If so, could someone also > point me at a likely interface/device/address range for this 'other' > storage device. Is it likely to be a SPI flash or something? > I'm not sure if there is somekind of /dev/cmos in Linux. But IIRC, there is a project that working on such a thing. I just don't know where exactly it is. Kind Regards, Darmawan

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Re: [LinuxBIOS] r64 - in buildrom-devel: config/platforms packages/linuxbios packages/linuxbios/patches
by Peter Stuge 28 Nov '07

28 Nov '07

On Wed, Nov 28, 2007 at 07:49:12PM +0100, svn(a)openbios.org wrote: > a patch against LinuxBIOS to allow the Serengeti-Cheetah platform > to come up on its emulated self in the SimNow simulator. Should this go into LB proper? //Peter

2 1

[LinuxBIOS] r64 - in buildrom-devel: config/platforms packages/linuxbios packages/linuxbios/patches
by svn＠openbios.org 28 Nov '07

28 Nov '07

Author: jcrouse Date: 2007-11-28 19:49:11 +0100 (Wed, 28 Nov 2007) New Revision: 64 Added: buildrom-devel/packages/linuxbios/patches/simnow.patch Modified: buildrom-devel/config/platforms/Config.in buildrom-devel/packages/linuxbios/serengeti_cheetah.mk Log: [BUILDROM] Add support for the AMD SimNow (TM) simulator Add a build option and a patch against LinuxBIOS to allow the Serengeti-Cheetah platform to come up on its emulated self in the SimNow simulator. Signed-off-by: Jordan Crouse <jordan.crouse(a)amd.com> Acked-by: Myles Watson <myles(a)pel.cs.byu.edu> Modified: buildrom-devel/config/platforms/Config.in =================================================================== --- buildrom-devel/config/platforms/Config.in 2007-11-28 18:41:23 UTC (rev 63) +++ buildrom-devel/config/platforms/Config.in 2007-11-28 18:49:11 UTC (rev 64) @@ -87,4 +87,13 @@ select PLATFORM_SUPPORT_64BIT endchoice + +config SIMNOW + bool "Build for the AMD SimNow (TM) emulator" + depends PLATFORM_SERENGETI_CHEETAH || PLATFORM_SERENGETI_CHEETAH_64 + default n + help + Say 'y' here to patch the build to work on an + emulated platform in the AMD SimNow (TM) simulator + endmenu Added: buildrom-devel/packages/linuxbios/patches/simnow.patch =================================================================== --- buildrom-devel/packages/linuxbios/patches/simnow.patch (rev 0) +++ buildrom-devel/packages/linuxbios/patches/simnow.patch 2007-11-28 18:49:11 UTC (rev 64) @@ -0,0 +1,59 @@ +Index: svn/src/northbridge/amd/amdk8/raminit_f_dqs.c +=================================================================== +--- svn.orig/src/northbridge/amd/amdk8/raminit_f_dqs.c ++++ svn/src/northbridge/amd/amdk8/raminit_f_dqs.c +@@ -1987,6 +1987,16 @@ static inline void train_ram_on_node(uns + struct sys_info *sysinfox = ((CONFIG_LB_MEM_TOPK<<10) - DCACHE_RAM_GLOBAL_VAR_SIZE); + wait_till_sysinfo_in_ram(); // use pci to get it + ++ /* In SimNow, when we get to this point, CAR is disabled, so ++ * our stack pointer points to never-never land, andjust it. ++ */ ++ ++ __asm__ volatile ( ++ "subl %0, %%ebp\n\t" ++ "subl %0, %%esp\n\t" ++ ::"a"( (DCACHE_RAM_BASE + DCACHE_RAM_SIZE)- (CONFIG_LB_MEM_TOPK<<10) ) ++ ); ++ + if(sysinfox->mem_trained[nodeid] == 0x80) { + #if 0 + sysinfo->tom_k = sysinfox->tom_k; +Index: svn/src/mainboard/amd/serengeti_cheetah/Options.lb +=================================================================== +--- svn.orig/src/mainboard/amd/serengeti_cheetah/Options.lb ++++ svn/src/mainboard/amd/serengeti_cheetah/Options.lb +@@ -218,7 +218,7 @@ default CONFIG_USE_INIT=0 + ## + ## for rev F training on AP purpose + ## +-default CONFIG_AP_CODE_IN_CAR=1 ++default CONFIG_AP_CODE_IN_CAR=0 + default MEM_TRAIN_SEQ=1 + default WAIT_BEFORE_CPUS_INIT=1 + +Index: svn/src/mainboard/amd/serengeti_cheetah/cache_as_ram_auto.c +=================================================================== +--- svn.orig/src/mainboard/amd/serengeti_cheetah/cache_as_ram_auto.c ++++ svn/src/mainboard/amd/serengeti_cheetah/cache_as_ram_auto.c +@@ -338,16 +338,18 @@ void real_main(unsigned long bist, unsig + } + #endif + +-#if 1 + needs_reset = optimize_link_coherent_ht(); ++#if 0 ++ /* On SimNow, this causes issues - remove it for now */ + needs_reset |= optimize_link_incoherent_ht(sysinfo); ++#endif + + // fidvid change will issue one LDTSTOP and the HT change will be effective too + if (needs_reset) { + print_info("ht reset -\r\n"); + soft_reset_x(sysinfo->sbbusn, sysinfo->sbdn); + } +-#endif ++ + allow_all_aps_stop(bsp_apicid); + + //It's the time to set ctrl in sysinfo now; Modified: buildrom-devel/packages/linuxbios/serengeti_cheetah.mk =================================================================== --- buildrom-devel/packages/linuxbios/serengeti_cheetah.mk 2007-11-28 18:41:23 UTC (rev 63) +++ buildrom-devel/packages/linuxbios/serengeti_cheetah.mk 2007-11-28 18:49:11 UTC (rev 64) @@ -15,12 +15,17 @@ $(error To build LinuxBIOS, you need to install the 'iasl' tool) endif + ifeq ($(CONFIG_PAYLOAD_LAB),y) LINUXBIOS_PATCHES += $(PACKAGE_DIR)/linuxbios/patches/serengeti_cheetah-lab.patch else LINUXBIOS_PATCHES += $(PACKAGE_DIR)/linuxbios/patches/serengeti_cheetah-payload.patch endif +ifeq ($(CONFIG_SIMNOW),y) +LINUXBIOS_PATCHES += $(PACKAGE_DIR)/linuxbios/patches/simnow.patch +endif + LINUXBIOS_BASE_DIR=svn LINUXBIOS_URL=svn://linuxbios.org/repos/trunk/LinuxBIOSv2 LINUXBIOS_TARBALL=linuxbios-svn-$(LINUXBIOS_TAG).tar.gz

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coreboot November 2007