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authorThomas Bogendoerfer <tsbogend@alpha.franken.de>2008-03-16 18:14:16 +0100
committerRalf Baechle <ralf@linux-mips.org>2008-04-01 15:46:33 +0100
commitcf7b7e0b3718418b38e1c20f5236534402e5a6c0 (patch)
tree3575724fe1d9ce07b4767f3ae6efb8b519909601
parent447cdf2628b59aa513a42785450b348dced26d8a (diff)
[MIPS] BCM1480: Fix PCI/HT IO access
- removed check for enable HT-PCI bridges, because some CFE version init only the needed one and scanning works even with disabled HT links - implemented I/O access behind HT PCI busses - fixed pci_map for IO resource behind PCI bridge Tested with E100 and Tulip driver. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
-rw-r--r--arch/mips/pci/pci-bcm1480.c6
-rw-r--r--arch/mips/pci/pci-bcm1480ht.c21
2 files changed, 11 insertions, 16 deletions
diff --git a/arch/mips/pci/pci-bcm1480.c b/arch/mips/pci/pci-bcm1480.c
index ab68c4318a3..87e2c8f54e2 100644
--- a/arch/mips/pci/pci-bcm1480.c
+++ b/arch/mips/pci/pci-bcm1480.c
@@ -185,8 +185,8 @@ static struct resource bcm1480_mem_resource = {
static struct resource bcm1480_io_resource = {
.name = "BCM1480 PCI I/O",
- .start = 0x2c000000UL,
- .end = 0x2dffffffUL,
+ .start = A_BCM1480_PHYS_PCI_IO_MATCH_BYTES,
+ .end = A_BCM1480_PHYS_PCI_IO_MATCH_BYTES + 0x1ffffffUL,
.flags = IORESOURCE_IO,
};
@@ -194,6 +194,7 @@ struct pci_controller bcm1480_controller = {
.pci_ops = &bcm1480_pci_ops,
.mem_resource = &bcm1480_mem_resource,
.io_resource = &bcm1480_io_resource,
+ .io_offset = A_BCM1480_PHYS_PCI_IO_MATCH_BYTES,
};
@@ -251,6 +252,7 @@ static int __init bcm1480_pcibios_init(void)
bcm1480_controller.io_map_base = (unsigned long)
ioremap(A_BCM1480_PHYS_PCI_IO_MATCH_BYTES, 65536);
+ bcm1480_controller.io_map_base -= bcm1480_controller.io_offset;
set_io_port_base(bcm1480_controller.io_map_base);
isa_slot_offset = (unsigned long)
ioremap(A_BCM1480_PHYS_PCI_MEM_MATCH_BYTES, 1024*1024);
diff --git a/arch/mips/pci/pci-bcm1480ht.c b/arch/mips/pci/pci-bcm1480ht.c
index 005e7fecab0..f54f45412b0 100644
--- a/arch/mips/pci/pci-bcm1480ht.c
+++ b/arch/mips/pci/pci-bcm1480ht.c
@@ -180,8 +180,8 @@ static struct resource bcm1480ht_mem_resource = {
static struct resource bcm1480ht_io_resource = {
.name = "BCM1480 HT I/O",
- .start = 0x00000000UL,
- .end = 0x01ffffffUL,
+ .start = A_BCM1480_PHYS_HT_IO_MATCH_BYTES,
+ .end = A_BCM1480_PHYS_HT_IO_MATCH_BYTES + 0x01ffffffUL,
.flags = IORESOURCE_IO,
};
@@ -191,29 +191,22 @@ struct pci_controller bcm1480ht_controller = {
.io_resource = &bcm1480ht_io_resource,
.index = 1,
.get_busno = bcm1480ht_pcibios_get_busno,
+ .io_offset = A_BCM1480_PHYS_HT_IO_MATCH_BYTES,
};
static int __init bcm1480ht_pcibios_init(void)
{
- uint32_t cmdreg;
-
ht_cfg_space = ioremap(A_BCM1480_PHYS_HT_CFG_MATCH_BITS, 16*1024*1024);
- /*
- * See if the PCI bus has been configured by the firmware.
- */
- cmdreg = READCFG32(CFGOFFSET(0, PCI_DEVFN(PCI_BRIDGE_DEVICE, 0),
- PCI_COMMAND));
- if (!(cmdreg & PCI_COMMAND_MASTER)) {
- printk("HT: Skipping HT probe. Bus is not initialized.\n");
- iounmap(ht_cfg_space);
- return 1; /* XXX */
- }
+ /* CFE doesn't always init all HT paths, so we always scan */
bcm1480ht_bus_status |= PCI_BUS_ENABLED;
ht_eoi_space = (unsigned long)
ioremap(A_BCM1480_PHYS_HT_SPECIAL_MATCH_BYTES,
4 * 1024 * 1024);
+ bcm1480ht_controller.io_map_base = (unsigned long)
+ ioremap(A_BCM1480_PHYS_HT_IO_MATCH_BYTES, 65536);
+ bcm1480ht_controller.io_map_base -= bcm1480ht_controller.io_offset;
register_pci_controller(&bcm1480ht_controller);