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-rw-r--r--drivers/pci/fsl_pci_init.c30
1 files changed, 16 insertions, 14 deletions
diff --git a/drivers/pci/fsl_pci_init.c b/drivers/pci/fsl_pci_init.c
index 0d46c96..20dabf3 100644
--- a/drivers/pci/fsl_pci_init.c
+++ b/drivers/pci/fsl_pci_init.c
@@ -1,5 +1,5 @@
/*
- * Copyright 2007-2011 Freescale Semiconductor, Inc.
+ * Copyright 2007-2012 Freescale Semiconductor, Inc.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
@@ -499,13 +499,7 @@ void fsl_pci_init(struct pci_controller *hose, struct fsl_pci_info *pci_info)
}
#ifndef CONFIG_PCI_NOSCAN
- pci_hose_read_config_byte(hose, dev, PCI_CLASS_PROG, &temp8);
-
- /* Programming Interface (PCI_CLASS_PROG)
- * 0 == pci host or pcie root-complex,
- * 1 == pci agent or pcie end-point
- */
- if (!temp8) {
+ if (!fsl_is_pci_agent(hose)) {
debug(" Scanning PCI bus %02x\n",
hose->current_busno);
hose->last_busno = pci_hose_scan_bus(hose, hose->current_busno);
@@ -543,12 +537,22 @@ void fsl_pci_init(struct pci_controller *hose, struct fsl_pci_info *pci_info)
int fsl_is_pci_agent(struct pci_controller *hose)
{
- u8 prog_if;
+ u8 pcie_cap;
pci_dev_t dev = PCI_BDF(hose->first_busno, 0, 0);
- pci_hose_read_config_byte(hose, dev, PCI_CLASS_PROG, &prog_if);
+ pci_hose_read_config_byte(hose, dev, FSL_PCIE_CAP_ID, &pcie_cap);
+ if (pcie_cap == PCI_CAP_ID_EXP) {
+ u8 header_type;
+
+ pci_hose_read_config_byte(hose, dev, PCI_HEADER_TYPE,
+ &header_type);
+ return (header_type & 0x7f) == PCI_HEADER_TYPE_NORMAL;
+ } else {
+ u8 prog_if;
- return (prog_if == FSL_PROG_IF_AGENT);
+ pci_hose_read_config_byte(hose, dev, PCI_CLASS_PROG, &prog_if);
+ return (prog_if == FSL_PROG_IF_AGENT);
+ }
}
int fsl_pci_init_port(struct fsl_pci_info *pci_info,
@@ -618,12 +622,10 @@ int fsl_pci_init_port(struct fsl_pci_info *pci_info,
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)
+ if (!fsl_is_pci_agent(hose))
return;
pci_hose_read_config_byte(hose, dev, FSL_PCIE_CAP_ID, &pcie_cap);