the struct to the individual struct members to improve readability.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Peter Stuge <peter@stuge.se>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4020 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Some bootloaders seem to overwrite memory starting at 0x600, thus destroying
the coreboot table integrity, rendering the table useless.
By moving the table to the high tables area (if it's activated), this problem
is fixed.
In order to move the table, a 40 bytes mini coreboot table with a single sub
table is placed at 0x500/0x530 that points to the real coreboot table. This is
comparable to the ACPI RSDT or the MP floating table.
This patch also adds "table forward" support to flashrom and nvramtool.
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Peter Stuge <peter@stuge.se>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4012 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
attempt trickery, we can simply rename the accessor functions.
Patch created with the help of Coccinelle.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Idwer Vollering <idwer_v@hotmail.com>
Acked-by: Patrick Georgi <patrick@georgi-clan.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3984 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
spotted assignments to volatile variables which were neither placed
inside the mmapped ROM area nor were they counters.
Due to the use of accessor functions, volatile usage can be reduced
significantly because the accessor functions take care of actually
performing the reads/writes correctly.
The following semantic patch spotted them (linebreak in python string
for readability reasons, please remove before usage):
@r exists@
expression b;
typedef uint8_t;
volatile uint8_t a;
position p1;
@@
a@p1 = readb(b);
@script:python@
p1 << r.p1;
a << r.a;
b << r.b;
@@
print "* file: %s line %s has assignment to unnecessarily volatile
variable: %s = readb(%s);" % (p1[0].file, p1[0].line, a, b)
Result was:
HANDLING: sst28sf040.c
* file: sst28sf040.c line 44 has assignment to unnecessarily volatile
variable: tmp = readb(TODO: Binary);
* file: sst28sf040.c line 43 has assignment to unnecessarily volatile
variable: tmp = readb(TODO: Binary);
* file: sst28sf040.c line 42 has assignment to unnecessarily volatile
variable: tmp = readb(TODO: Binary);
* file: sst28sf040.c line 41 has assignment to unnecessarily volatile
variable: tmp = readb(TODO: Binary);
* file: sst28sf040.c line 40 has assignment to unnecessarily volatile
variable: tmp = readb(TODO: Binary);
* file: sst28sf040.c line 39 has assignment to unnecessarily volatile
variable: tmp = readb(TODO: Binary);
* file: sst28sf040.c line 38 has assignment to unnecessarily volatile
variable: tmp = readb(TODO: Binary);
* file: sst28sf040.c line 58 has assignment to unnecessarily volatile
variable: tmp = readb(TODO: Binary);
* file: sst28sf040.c line 57 has assignment to unnecessarily volatile
variable: tmp = readb(TODO: Binary);
* file: sst28sf040.c line 56 has assignment to unnecessarily volatile
variable: tmp = readb(TODO: Binary);
* file: sst28sf040.c line 55 has assignment to unnecessarily volatile
variable: tmp = readb(TODO: Binary);
* file: sst28sf040.c line 54 has assignment to unnecessarily volatile
variable: tmp = readb(TODO: Binary);
* file: sst28sf040.c line 53 has assignment to unnecessarily volatile
variable: tmp = readb(TODO: Binary);
* file: sst28sf040.c line 52 has assignment to unnecessarily volatile
variable: tmp = readb(TODO: Binary);
The following semantic patch uses the spatch builtin match printing
functionality by prepending a "*" to the line with the pattern:
@@
expression b;
typedef uint8_t;
volatile uint8_t a;
@@
* a = readb(b);
Result is:
HANDLING: sst28sf040.c
diff =
--- sst28sf040.c 2009-03-06 01:04:49.000000000 +0100
@@ -35,13 +35,6 @@ static __inline__ void protect_28sf040(v
/* ask compiler not to optimize this */
volatile uint8_t tmp;
- tmp = readb(bios + 0x1823);
- tmp = readb(bios + 0x1820);
- tmp = readb(bios + 0x1822);
- tmp = readb(bios + 0x0418);
- tmp = readb(bios + 0x041B);
- tmp = readb(bios + 0x0419);
- tmp = readb(bios + 0x040A);
}
static __inline__ void unprotect_28sf040(volatile uint8_t *bios)
@@ -49,13 +42,6 @@ static __inline__ void unprotect_28sf040
/* ask compiler not to optimize this */
volatile uint8_t tmp;
- tmp = readb(bios + 0x1823);
- tmp = readb(bios + 0x1820);
- tmp = readb(bios + 0x1822);
- tmp = readb(bios + 0x0418);
- tmp = readb(bios + 0x041B);
- tmp = readb(bios + 0x0419);
- tmp = readb(bios + 0x041A);
}
static __inline__ int erase_sector_28sf040(volatile uint8_t *bios,
It's arguably a bit easier to read if you get used to the leading "-"
for matching lines.
This patch was enabled by Coccinelle:
http://www.emn.fr/x-info/coccinelle/
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Joseph Smith <joe@settoplinux.org>
--
http://www.hailfinger.org/
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3973 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Right now we perform direct pointer manipulation without any abstraction
to read from and write to memory mapped flash chips. That makes it
impossible to drive any flasher which does not mmap the whole chip.
Using helper functions readb() and writeb() allows a driver for external
flash programmers like Paraflasher to replace readb and writeb with
calls to its own chip access routines.
This patch has the additional advantage of removing lots of unnecessary
casts to volatile uint8_t * and now-superfluous parentheses which caused
poor readability.
I used the semantic patcher Coccinelle to create this patch. The
semantic patch follows:
@@
expression a;
typedef uint8_t;
volatile uint8_t *b;
@@
- *(b) = (a);
+ writeb(a, b);
@@
volatile uint8_t *b;
@@
- *(b)
+ readb(b)
@@
type T;
T b;
@@
(
readb
|
writeb
)
(...,
- (T)
- (b)
+ b
)
In contrast to a sed script, the semantic patch performs type checking
before converting anything.
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: FENG Yu Ning <fengyuning1984@gmail.com>
Tested-by: Joe Julian
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3971 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Elan SC520 requries us to deal with flash chip base addresses at locations
other than top of 4GB. The logic for that was incorrectly triggered also when
a board had more than one flash chip. This patch will honor flashbase only when
probing for the first flash chip on the board, and look at top of 4GB for later
chips.
Signed-off-by: Peter Stuge <peter@stuge.se>
Acked-by: Myles Watson <mylesgw@gmail.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3932 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
initialized same way as ICH7.
Signed-off-by: Rudolf Marek <r.marek@assembler.cz>
Acked-by: Peter Stuge <peter@stuge.se>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3926 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Test report from Julia. Thanks!
Signed-off-by: Peter Stuge <peter@stuge.se>
Acked-by: Julia Longtin <juri@solarnetone.org>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3917 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
SST AAI is Auto Address Increment writing, a streamed write to the flash chip
where the first write command sets a starting address and following commands
simply append data. Unfortunately not supported by Winbond SPI masters.
From July 2008.
Signed-off-by: Peter Stuge <peter@stuge.se>
Acked-by: Peter Stuge <peter@stuge.se>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3913 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Developed and tested to work on Intel D201GLY in July 2008.
Tested by a helpful person on IRC whose name I've since forgotten. Sorry!
Signed-off-by: Peter Stuge <peter@stuge.se>
Acked-by: Ward Vandewege <ward@gnu.org>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3910 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Through DirectIO from coresystems GmbH we now support Darwin/Mac OS X.
DirectIO is available at http://www.coresystems.de/en/directio
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Signed-off-by: Peter Stuge <peter@stuge.se>
Acked-by: Peter Stuge <peter@stuge.se>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3905 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Signed-off-by: Peter Stuge <peter@stuge.se>
Acked-by: Peter Stuge <peter@stuge.se>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3903 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
The function exit()s on failure, and no callers check the return value.
Signed-off-by: Peter Stuge <peter@stuge.se>
Acked-by: Peter Stuge <peter@stuge.se>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3901 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
As reported by Jody McIntyre. Thanks!
Signed-off-by: Peter Stuge <peter@stuge.se>
Acked-by: Peter Stuge <peter@stuge.se>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3894 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
board_pciid_enables more readable.
Signed-off-by: Stephan Guilloux <stephan.guilloux@free.fr>
> What real problem does this solve?
1. Next time someone adds a new struct member, we avoid mistakes of
ordering of initializers
2. we avoid mistakes in the first place.
The .x = y stuff was added for a (good) reason, I think this is an
improvement.
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3861 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This board has 2x MX25L8005 flash chips behind an IT8718F LPC->SPI bridge.
The board uses GIGABYTE's patented BIOS failover technology, and at this point
we do not know how to control which of the two chips flashrom actually hits.
Signed-off-by: Peter Stuge <peter@stuge.se>
Acked-by: Yul Rottmann <yulrottmann@bitel.net>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3859 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
incorrect license section.
- Remove the copyright listings and refer the reader to the source
files.
- Update the author list to those which have copyright messages in the
source files.
- Correct the license from GPL v2+ to (GPL v2, with some files under
later versions as well)
Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3852 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
flashchips.c over what's currently in flashrom HEAD.
The explicit initialization makes sure any future struct flashchip
reordering is not needed. (Except for the case where we need arrays
of some of the struct members.)
Signed-off-by: Stephan Guilloux <mailto:stephan.guilloux@free.fr>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3851 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Carl-Daniel Hailfinger