diff options
| author | Ben Warren <biggerbadderben@gmail.com> | 2009-01-24 20:44:56 -0800 |
|---|---|---|
| committer | Ben Warren <biggerbadderben@gmail.com> | 2009-01-24 20:44:56 -0800 |
| commit | ef29884b2708a6cce3b77f4ccaeea193d4e02c22 (patch) | |
| tree | 2f6a28872ab9f5de9fec7ac878b8801f5f536eec /drivers/pci | |
| parent | 4cd8ed40615a7d741ef2f09ee53779ec6907b8a6 (diff) | |
| parent | 8f86a3636ef88427f880610638e80991adc41896 (diff) | |
Merge git://git.denx.de/u-boot into u-boot
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/fsl_pci_init.c | 29 | ||||
| -rw-r--r-- | drivers/pci/pci_sh7751.c | 4 |
2 files changed, 31 insertions, 2 deletions
diff --git a/drivers/pci/fsl_pci_init.c b/drivers/pci/fsl_pci_init.c index 1db42fd8d3..db68f26009 100644 --- a/drivers/pci/fsl_pci_init.c +++ b/drivers/pci/fsl_pci_init.c @@ -37,6 +37,11 @@ DECLARE_GLOBAL_DATA_PTR; #include <pci.h> #include <asm/immap_fsl_pci.h> +/* Freescale-specific PCI config registers */ +#define FSL_PCI_PBFR 0x44 +#define FSL_PCIE_CAP_ID 0x4c +#define FSL_PCIE_CFG_RDY 0x4b0 + 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, @@ -306,6 +311,30 @@ void fsl_pci_init(struct pci_controller *hose) } } +/* Enable inbound PCI config cycles for agent/endpoint interface */ +void fsl_pci_config_unlock(struct pci_controller *hose) +{ + pci_dev_t dev = PCI_BDF(hose->first_busno,0,0); + u8 agent; + u8 pcie_cap; + u16 pbfr; + + pci_hose_read_config_byte(hose, dev, PCI_CLASS_PROG, &agent); + if (!agent) + return; + + pci_hose_read_config_byte(hose, dev, FSL_PCIE_CAP_ID, &pcie_cap); + if (pcie_cap != 0x0) { + /* PCIe - set CFG_READY bit of Configuration Ready Register */ + pci_hose_write_config_byte(hose, dev, FSL_PCIE_CFG_RDY, 0x1); + } else { + /* PCI - clear ACL bit of PBFR */ + pci_hose_read_config_word(hose, dev, FSL_PCI_PBFR, &pbfr); + pbfr &= ~0x20; + pci_hose_write_config_word(hose, dev, FSL_PCI_PBFR, pbfr); + } +} + #ifdef CONFIG_OF_BOARD_SETUP #include <libfdt.h> #include <fdt_support.h> diff --git a/drivers/pci/pci_sh7751.c b/drivers/pci/pci_sh7751.c index e3a0ea0047..df6d76f7f1 100644 --- a/drivers/pci/pci_sh7751.c +++ b/drivers/pci/pci_sh7751.c @@ -187,8 +187,8 @@ int pci_sh7751_init(struct pci_controller *hose) /* Copy BSC registers into PCI BSC */ p4_out(inl(SH7751_BCR1), SH7751_PCIBCR1); - p4_out(inl(SH7751_BCR2), SH7751_PCIBCR2); - p4_out(inl(SH7751_BCR3), SH7751_PCIBCR3); + p4_out(inw(SH7751_BCR2), SH7751_PCIBCR2); + p4_out(inw(SH7751_BCR3), SH7751_PCIBCR3); p4_out(inl(SH7751_WCR1), SH7751_PCIWCR1); p4_out(inl(SH7751_WCR2), SH7751_PCIWCR2); p4_out(inl(SH7751_WCR3), SH7751_PCIWCR3); |