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[POWERPC] 52xx: Remove support for PCI bus_offset 

The hose->bus_offset is only used for PCI config cycles and the 52xx PCI
config code doesn't actually ever set bus_offset to a non-zero value.

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
This commit is contained in:
Kumar Gala 2007-06-21 11:32:38 -05:00
parent 5ab9c4524d
commit 0e302a7044
1 changed files with 4 additions and 5 deletions
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9
arch/powerpc/platforms/52xx/mpc52xx_pci.c
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@ -117,13 +117,13 @@ mpc52xx_pci_read_config(struct pci_bus *bus, unsigned int devfn,
out_be32(hose->cfg_addr, out_be32(hose->cfg_addr,
(1 << 31) | (1 << 31) |
((bus->number - hose->bus_offset) << 16) | (bus->number << 16) |
(devfn << 8) | (devfn << 8) |
(offset & 0xfc)); (offset & 0xfc));
mb(); mb();
#if defined(CONFIG_PPC_MPC5200_BUGFIX) #if defined(CONFIG_PPC_MPC5200_BUGFIX)
if (bus->number != hose->bus_offset) { if (bus->number) {
/* workaround for the bug 435 of the MPC5200 (L25R); /* workaround for the bug 435 of the MPC5200 (L25R);
* Don't do 32 bits config access during type-1 cycles */ * Don't do 32 bits config access during type-1 cycles */
switch (len) { switch (len) {
@ -174,13 +174,13 @@ mpc52xx_pci_write_config(struct pci_bus *bus, unsigned int devfn,
out_be32(hose->cfg_addr, out_be32(hose->cfg_addr,
(1 << 31) | (1 << 31) |
((bus->number - hose->bus_offset) << 16) | (bus->number << 16) |
(devfn << 8) | (devfn << 8) |
(offset & 0xfc)); (offset & 0xfc));
mb(); mb();
#if defined(CONFIG_PPC_MPC5200_BUGFIX) #if defined(CONFIG_PPC_MPC5200_BUGFIX)
if (bus->number != hose->bus_offset) { if (bus->number) {
/* workaround for the bug 435 of the MPC5200 (L25R); /* workaround for the bug 435 of the MPC5200 (L25R);
* Don't do 32 bits config access during type-1 cycles */ * Don't do 32 bits config access during type-1 cycles */
switch (len) { switch (len) {
@ -394,7 +394,6 @@ mpc52xx_add_bridge(struct device_node *node)
hose->first_busno = bus_range ? bus_range[0] : 0; hose->first_busno = bus_range ? bus_range[0] : 0;
hose->last_busno = bus_range ? bus_range[1] : 0xff; hose->last_busno = bus_range ? bus_range[1] : 0xff;
hose->bus_offset = 0;
hose->ops = &mpc52xx_pci_ops; hose->ops = &mpc52xx_pci_ops;
pci_regs = ioremap(rsrc.start, rsrc.end - rsrc.start + 1); pci_regs = ioremap(rsrc.start, rsrc.end - rsrc.start + 1);