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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
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Signed-off-by: Peter Stuge <peter@stuge.se>
Acked-by: Peter Stuge <peter@stuge.se>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3895 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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layout option, as well as areas, whose flash contents already contain the
desired data, will be skipped.
These ensures absolute data security of critical areas (BIOS boot block),
e.g. against a sudden power off or a CPU hangup during flashing. As a
nice side effect, it speeds up the flash process, if the BIOS to be flashed
is very similar to the version in flash.
Signed-off-by: Claus Gindhart <claus.gindhart@kontron.com>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3260 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3140 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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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@3137 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2873 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2768 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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No changes in content of the files.
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2751 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2748 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2747 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2746 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2745 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2693 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2691 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2690 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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* Give decent names to virt_addr and virt_addr_2
* add some comments
* move virtual addresses to the end of the struct,
so they dont mess up the initializer.
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2689 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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indent -npro -kr -i8 -ts8 -sob -l80 -ss -ncs *.[ch]
Some minor fixups were required, and maybe a few more cosmetic
changeѕ are needed.
Signed-off-by: Uwe Hermann <uwe@hermann-uwe.de>
Acked-by: Uwe Hermann <uwe@hermann-uwe.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2643 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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* Only open /dev/mem once and do it early.
* Drop extern for function prototypes.
* Minimize ts5300 impact in probe_flash()
This cleanup will making ICH7 SPI support quite some easier.
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2585 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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* flash.h:
- add a license header
- add system definitions
* flash_enable.c:
- put io priviledge access in one single place
- add includes required for Solaris.
* lbtable.c, flash_rom.c, 82802ab.c:
- use MEM_DEV so it works on Solaris
* sst49lfxxxc.c, sharplhf00l04.c, sst_fwhub.c, 82802ab.c
- drop unneeded include to sys/io.h
* Makefile
- adapt to Solaris specifics.
Signed-off-by: Adam Kaufman <adam.kaufman@pinnacle.com>
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Adam Kaufman <adam.kaufman@pinnacle.com>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2550 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2386 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2111 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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git-svn-id: svn://svn.coreboot.org/coreboot/trunk@2102 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
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