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[U-Boot,1/5] pci: sh7751: fix up PCI I/O space address

Message ID 1470506915-878-2-git-send-email-vz@mleia.com
State Accepted
Commit d44cf293a127ff96a36ad5296897eeb13afbb08b
Delegated to: Nobuhiro Iwamatsu
Headers show

Commit Message

Vladimir Zapolskiy Aug. 6, 2016, 6:08 p.m. UTC 
The change actually maps PCI I/O window to the same address on PCI bus
as it is stated by a comment, before the change transfers to the PCI I/O
space are failed due to misconfiguration of the most significant 14 bits
of the PCI address in PCIIOBR (note that it is set to 0x0).

Most probably the problem remained unnoticed, because communcation
to all tested PCI devices is done over PCI memory space only.

Signed-off-by: Vladimir Zapolskiy <vz@mleia.com>
---
 drivers/pci/pci_sh7751.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/drivers/pci/pci_sh7751.c b/drivers/pci/pci_sh7751.c
index f189ed8..420ae81 100644
--- a/drivers/pci/pci_sh7751.c
+++ b/drivers/pci/pci_sh7751.c
@@ -164,7 +164,7 @@  int pci_sh7751_init(struct pci_controller *hose)
 	p4_out(SH7751_PCI_MEM_BASE, SH7751_PCIMBR);
 
 	/* Map IO window to same address on PCI bus */
-	p4_out(0x2000 & 0xfffc0000, SH7751_PCIIOBR);
+	p4_out(SH7751_PCI_IO_BASE, SH7751_PCIIOBR);
 
 	/* set BREQEN */
 	p4_out(inl(SH7751_BCR1) | 0x00080000, SH7751_BCR1);