Port of a Linux commit e9be4d78618af2e0d5592d9556cf0bba210cfd1a
The ATU CTRL2 register is 32 bits, and bits other than the enable bit may
be set. To check whether the ATU is enabled or not, we should test the
enable bit specifically.
Signed-off-by: Jisheng Zhang <jszhang@xxxxxxxxxxx>
Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
Acked-by: Joao Pinto <jpinto@xxxxxxxxxxxx>
Acked-by: Jingoo Han <jingoohan1@xxxxxxxxx>
Signed-off-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx>
---
drivers/pci/pcie-designware.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pci/pcie-designware.c b/drivers/pci/pcie-designware.c
index 2baf6c3b1..b365b1617 100644
--- a/drivers/pci/pcie-designware.c
+++ b/drivers/pci/pcie-designware.c
@@ -126,7 +126,7 @@ void dw_pcie_prog_outbound_atu(struct dw_pcie *pci, int index,
*/
for (retries = 0; retries < LINK_WAIT_MAX_IATU_RETRIES; retries++) {
val = dw_pcie_readl_dbi(pci, PCIE_ATU_CR2);
- if (val == PCIE_ATU_ENABLE)
+ if (val & PCIE_ATU_ENABLE)
return;
udelay(LINK_WAIT_IATU_MAX);
--
2.19.1
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