[SPARC64] PCI: Consolidate PCI access code into pci_common.c

All the sun4u controllers do the same thing to compute the physical
I/O address to poke, and we can move the sun4v code into this common
location too.

This one needs a bit of testing, in particular the Sabre code had some
funny stuff that would break up u16 and/or u32 accesses into pieces
and I didn't think that was needed any more.  If it is we need to find
out why and add back code to do it again.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 133 deletions

diff --git a/arch/sparc64/kernel/pci_fire.c b/arch/sparc64/kernel/pci_fire.c
index 2e0eb4ee8f71..9198c1a0f7a5 100644
--- a/arch/sparc64/kernel/pci_fire.c
+++ b/arch/sparc64/kernel/pci_fire.c
@@ -27,138 +27,6 @@
 			       "i" (ASI_PHYS_BYPASS_EC_E) \
 			     : "memory")
 
-/* Fire config space address format is nearly identical to
- * that of SCHIZO and PSYCHO, except that in order to accomodate
- * PCI-E extended config space the encoding can handle 12 bits
- * of register address:
- *
- *  32     28 27 20 19    15 14      12 11  2  1 0
- * -------------------------------------------------
- * |0 0 0 0 0| bus | device | function | reg | 0 0 |
- * -------------------------------------------------
- */
-#define FIRE_CONFIG_BASE(PBM)	((PBM)->config_space)
-#define FIRE_CONFIG_ENCODE(BUS, DEVFN, REG)	\
-	(((unsigned long)(BUS)   << 20) |	\
-	 ((unsigned long)(DEVFN) << 12)  |	\
-	 ((unsigned long)(REG)))
-
-static void *fire_pci_config_mkaddr(struct pci_pbm_info *pbm,
-				      unsigned char bus,
-				      unsigned int devfn,
-				      int where)
-{
-	if (!pbm)
-		return NULL;
-	return (void *)
-		(FIRE_CONFIG_BASE(pbm) |
-		 FIRE_CONFIG_ENCODE(bus, devfn, where));
-}
-
-/* FIRE PCI configuration space accessors. */
-
-static int fire_read_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn,
-			     int where, int size, u32 *value)
-{
-	struct pci_pbm_info *pbm = bus_dev->sysdata;
-	unsigned char bus = bus_dev->number;
-	u32 *addr;
-	u16 tmp16;
-	u8 tmp8;
-
-	if (bus_dev == pbm->pci_bus && devfn == 0x00)
-		return pci_host_bridge_read_pci_cfg(bus_dev, devfn, where,
-						    size, value);
-	switch (size) {
-	case 1:
-		*value = 0xff;
-		break;
-	case 2:
-		*value = 0xffff;
-		break;
-	case 4:
-		*value = 0xffffffff;
-		break;
-	}
-
-	addr = fire_pci_config_mkaddr(pbm, bus, devfn, where);
-	if (!addr)
-		return PCIBIOS_SUCCESSFUL;
-
-	switch (size) {
-	case 1:
-		pci_config_read8((u8 *)addr, &tmp8);
-		*value = tmp8;
-		break;
-
-	case 2:
-		if (where & 0x01) {
-			printk("pci_read_config_word: misaligned reg [%x]\n",
-			       where);
-			return PCIBIOS_SUCCESSFUL;
-		}
-		pci_config_read16((u16 *)addr, &tmp16);
-		*value = tmp16;
-		break;
-
-	case 4:
-		if (where & 0x03) {
-			printk("pci_read_config_dword: misaligned reg [%x]\n",
-			       where);
-			return PCIBIOS_SUCCESSFUL;
-		}
-
-		pci_config_read32(addr, value);
-		break;
-	}
-	return PCIBIOS_SUCCESSFUL;
-}
-
-static int fire_write_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn,
-			      int where, int size, u32 value)
-{
-	struct pci_pbm_info *pbm = bus_dev->sysdata;
-	unsigned char bus = bus_dev->number;
-	u32 *addr;
-
-	if (bus_dev == pbm->pci_bus && devfn == 0x00)
-		return pci_host_bridge_write_pci_cfg(bus_dev, devfn, where,
-						     size, value);
-	addr = fire_pci_config_mkaddr(pbm, bus, devfn, where);
-	if (!addr)
-		return PCIBIOS_SUCCESSFUL;
-
-	switch (size) {
-	case 1:
-		pci_config_write8((u8 *)addr, value);
-		break;
-
-	case 2:
-		if (where & 0x01) {
-			printk("pci_write_config_word: misaligned reg [%x]\n",
-			       where);
-			return PCIBIOS_SUCCESSFUL;
-		}
-		pci_config_write16((u16 *)addr, value);
-		break;
-
-	case 4:
-		if (where & 0x03) {
-			printk("pci_write_config_dword: misaligned reg [%x]\n",
-			       where);
-			return PCIBIOS_SUCCESSFUL;
-		}
-
-		pci_config_write32(addr, value);
-	}
-	return PCIBIOS_SUCCESSFUL;
-}
-
-static struct pci_ops pci_fire_ops = {
-	.read	=	fire_read_pci_cfg,
-	.write	=	fire_write_pci_cfg,
-};
-
 static void pci_fire_scan_bus(struct pci_pbm_info *pbm)
 {
 	pbm->pci_bus = pci_scan_one_pbm(pbm);
@@ -314,7 +182,8 @@ static void pci_fire_pbm_init(struct pci_controller_info *p,
 	pci_pbm_root = pbm;
 
 	pbm->scan_bus = pci_fire_scan_bus;
-	pbm->pci_ops = &pci_fire_ops;
+	pbm->pci_ops = &sun4u_pci_ops;
+	pbm->config_space_reg_bits = 12;
 
 	pbm->index = pci_num_pbms++;