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[MIPS] IP32: Enable PCI bridges 

Fixe MACE PCI addressing by adding the bus number parameter.
Remove check of the used slot since every slot should be valid.
Converted mkaddr from #define to inline function.

Signed-off-by: Giuseppe Sacco <eppesuig@debian.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Giuseppe Sacco 2007-10-04 23:09:12 +02:00 committed by Ralf Baechle
parent 804b3f9a16
commit 8cfaf45367
1 changed files with 9 additions and 12 deletions
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21
arch/mips/pci/ops-mace.c
View File

@ -29,22 +29,20 @@
* 4 N/C
*/
#define chkslot(_bus,_devfn) \
do { \
if ((_bus)->number > 0 || PCI_SLOT (_devfn) < 1 \
|| PCI_SLOT (_devfn) > 3) \
return PCIBIOS_DEVICE_NOT_FOUND; \
} while (0)
static inline int mkaddr(struct pci_bus *bus, unsigned int devfn,
unsigned int reg)
{
return ((bus->number & 0xff) << 16) |
(devfn & 0xff) << 8) |
(reg & 0xfc);
}
#define mkaddr(_devfn, _reg) \
((((_devfn) & 0xffUL) << 8) | ((_reg) & 0xfcUL))
static int
mace_pci_read_config(struct pci_bus *bus, unsigned int devfn,
int reg, int size, u32 *val)
{
chkslot(bus, devfn);
mace->pci.config_addr = mkaddr(devfn, reg);
mace->pci.config_addr = mkaddr(bus, devfn, reg);
switch (size) {
case 1:
*val = mace->pci.config_data.b[(reg & 3) ^ 3];
@ -66,8 +64,7 @@ static int
mace_pci_write_config(struct pci_bus *bus, unsigned int devfn,
int reg, int size, u32 val)
{
chkslot(bus, devfn);
mace->pci.config_addr = mkaddr(devfn, reg);
mace->pci.config_addr = mkaddr(bus, devfn, reg);
switch (size) {
case 1:
mace->pci.config_data.b[(reg & 3) ^ 3] = val;