At present all PCI devices must be present in the device tree in order to
be used. Many or most PCI devices don't require any configuration other than
that which is done automatically by U-Boot. It is inefficent to add a node
with nothing but a compatible string in order to get a device working.
Add a mechanism whereby PCI drivers can be declared along with the device
parameters they support (vendor/device/class). When no suitable driver is
found in the device tree the list of such devices is consulted to determine
the correct driver. If this also fails, then a generic driver is used as
before.
The mechanism used is very similar to that provided by Linux and the header
file defintions are copied from Linux 4.1.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Joe Hershberger <joe.hershberger@ni.com>
Configuring for vme8349 board...
cmd_tsi148.c: In function 'tsi148_init':
cmd_tsi148.c:56:17: warning: variable 'lastError' set but not used [-Wunused-but-set-variable]
Signed-off-by: Kim Phillips <kim.phillips@freescale.com>
This patch does 2 things:
- Fix the argument number assigned to the vdw (VME data width) value.
Previously, a nonexistent 7th arument was read as the vdw variable.
- Reduce the size of the argument array for the tsi148 command from
8 to 7. The tsi148 command itself is argument index 0, and the
maximum number arguments passed to the command is 6, making a total
of 7 for the array.
Signed-off-by: Brent Darley <bdarley@xes-inc.com>
Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
The hush shell dynamically allocates (and re-allocates) memory for the
argument strings in the "char *argv[]" argument vector passed to
commands. Any code that modifies these pointers will cause serious
corruption of the malloc data structures and crash U-Boot, so make
sure the compiler can check that no such modifications are being done
by changing the code into "char * const argv[]".
This modification is the result of debugging a strange crash caused
after adding a new command, which used the following argument
processing code which has been working perfectly fine in all Unix
systems since version 6 - but not so in U-Boot:
int main (int argc, char **argv)
{
while (--argc > 0 && **++argv == '-') {
/* ====> */ while (*++*argv) {
switch (**argv) {
case 'd':
debug++;
break;
...
default:
usage ();
}
}
}
...
}
The line marked "====>" will corrupt the malloc data structures and
usually cause U-Boot to crash when the next command gets executed by
the shell. With the modification, the compiler will prevent this with
an
error: increment of read-only location '*argv'
N.B.: The code above can be trivially rewritten like this:
while (--argc > 0 && **++argv == '-') {
char *arg = *argv;
while (*++arg) {
switch (*arg) {
...
Signed-off-by: Wolfgang Denk <wd@denx.de>
Acked-by: Mike Frysinger <vapier@gentoo.org>
From: Reinhard Arlt <reinhard.arlt@esd-electronics.com>
This patch adds support for the Tundra TSI148 VME-bridge. It's used on
the upcoming esd VME8349 board.
Signed-off-by: Reinhard Arlt <reinhard.arlt@esd-electronics.com>
Signed-off-by: Stefan Roese <sr@denx.de>
Simon Glass
Wolfgang Denk
Kim Phillips
Brent Darley
Peter Tyser
Reinhard Arlt