Commit 05737c7c authored by Jason Jin's avatar Jason Jin Committed by Kumar Gala

powerpc/fsl-pci: Don't hide resource for pci/e when configured as Agent/EP

Current pci/pcie init code will hide the pci/pcie host resource.
But did not judge it is host/RC or agent/EP. If configured as
agent/EP, we should avoid hiding its resource in the host side.

In PCI system, the Programing Interface can be used to judge the
host/agent status:
Programing Interface = 0: host
Programing Interface = 1: Agent

In PCIE system, both the Programing Interface and Header type can
be used to judge the RC/EP status.
Header Type = 0: EP
Header Type = 1: RC
Signed-off-by: default avatarJason Jin <Jason.jin@freescale.com>
Signed-off-by: default avatarMingkai Hu <Mingkai.hu@freescale.com>
Signed-off-by: default avatarJia Hongtao <B38951@freescale.com>
Signed-off-by: default avatarLi Yang <leoli@freescale.com>
Signed-off-by: default avatarKumar Gala <galak@kernel.crashing.org>
parent 54986964
......@@ -1747,10 +1747,13 @@ void __devinit pcibios_scan_phb(struct pci_controller *hose)
static void fixup_hide_host_resource_fsl(struct pci_dev *dev)
{
int i, class = dev->class >> 8;
/* When configured as agent, programing interface = 1 */
int prog_if = dev->class & 0xf;
if ((class == PCI_CLASS_PROCESSOR_POWERPC ||
class == PCI_CLASS_BRIDGE_OTHER) &&
(dev->hdr_type == PCI_HEADER_TYPE_NORMAL) &&
(prog_if == 0) &&
(dev->bus->parent == NULL)) {
for (i = 0; i < DEVICE_COUNT_RESOURCE; i++) {
dev->resource[i].start = 0;
......
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