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authorKumar Gala <galak@kernel.crashing.org>2008-10-21 10:13:14 -0500
committerAndrew Fleming-AFLEMING <afleming@freescale.com>2008-10-24 17:35:02 -0500
commit612ea01018a459234d54ed57ec6a5a244ce75678 (patch)
treea6c67ffdf32c0621a3270373cf725058409fa0ba
parent8ab451c46b846f2bbd7122b29ffdd9a4a04da228 (diff)
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pci/fsl_pci_init: Enable larger address and setting inbound windows properly
* PCI Inbound window was setup incorrectly. The PCI address and system address were swapped. The PCI address should be setting piwar/piwbear and the system address should be setting pitar. * Removed masking of addresses to allow for system address to support system address & PCI address >32-bits * Set PIWBEAR & POTEAR to allow for full 64-bit PCI addresses * Respect the PCI_REGION_PREFETCH for inbound windows Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Andrew Fleming-AFLEMING <afleming@freescale.com>
-rw-r--r--drivers/pci/fsl_pci_init.c38
1 files changed, 24 insertions, 14 deletions
diff --git a/drivers/pci/fsl_pci_init.c b/drivers/pci/fsl_pci_init.c
index 38a16e5..f41c8aa 100644
--- a/drivers/pci/fsl_pci_init.c
+++ b/drivers/pci/fsl_pci_init.c
@@ -39,10 +39,9 @@ void pciauto_prescan_setup_bridge(struct pci_controller *hose,
pci_dev_t dev, int sub_bus);
void pciauto_postscan_setup_bridge(struct pci_controller *hose,
pci_dev_t dev, int sub_bus);
-
void pciauto_config_init(struct pci_controller *hose);
-void
-fsl_pci_init(struct pci_controller *hose)
+
+void fsl_pci_init(struct pci_controller *hose)
{
u16 temp16;
u32 temp32;
@@ -65,25 +64,36 @@ fsl_pci_init(struct pci_controller *hose)
#endif
for (r=0; r<hose->region_count; r++) {
+ u32 sz = (__ilog2_u64((u64)hose->regions[r].size) - 1);
if (hose->regions[r].flags & PCI_REGION_MEMORY) { /* inbound */
- pi->pitar = (hose->regions[r].bus_start >> 12) & 0x000fffff;
- pi->piwbar = (hose->regions[r].phys_start >> 12) & 0x000fffff;
+ u32 flag = PIWAR_EN | PIWAR_LOCAL | \
+ PIWAR_READ_SNOOP | PIWAR_WRITE_SNOOP;
+ pi->pitar = (hose->regions[r].phys_start >> 12);
+ pi->piwbar = (hose->regions[r].bus_start >> 12);
+#ifdef CONFIG_SYS_PCI_64BIT
+ pi->piwbear = (hose->regions[r].bus_start >> 44);
+#else
pi->piwbear = 0;
- pi->piwar = PIWAR_EN | PIWAR_PF | PIWAR_LOCAL |
- PIWAR_READ_SNOOP | PIWAR_WRITE_SNOOP |
- (__ilog2(hose->regions[r].size) - 1);
+#endif
+ if (hose->regions[r].flags & PCI_REGION_PREFETCH)
+ flag |= PIWAR_PF;
+ pi->piwar = flag | sz;
pi++;
inbound = hose->regions[r].size > 0;
} else { /* Outbound */
- po->powbar = (hose->regions[r].phys_start >> 12) & 0x000fffff;
- po->potar = (hose->regions[r].bus_start >> 12) & 0x000fffff;
+ po->powbar = (hose->regions[r].phys_start >> 12);
+ po->potar = (hose->regions[r].bus_start >> 12);
+#ifdef CONFIG_SYS_PCI_64BIT
+ po->potear = (hose->regions[r].bus_start >> 44);
+#else
po->potear = 0;
+#endif
if (hose->regions[r].flags & PCI_REGION_IO)
- po->powar = POWAR_EN | POWAR_IO_READ | POWAR_IO_WRITE |
- (__ilog2(hose->regions[r].size) - 1);
+ po->powar = POWAR_EN | sz | \
+ POWAR_IO_READ | POWAR_IO_WRITE;
else
- po->powar = POWAR_EN | POWAR_MEM_READ | POWAR_MEM_WRITE |
- (__ilog2(hose->regions[r].size) - 1);
+ po->powar = POWAR_EN | sz | \
+ POWAR_MEM_READ | POWAR_MEM_WRITE;
po++;
}
}