Messages in this thread Patch in this message | | | From | Jisheng Zhang <> | Subject | [PATCH] PCI: dwc: designware: test PCIE_ATU_ENABLE bit to check enabled or not | Date | Thu, 13 Jul 2017 18:35:27 +0800 |
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The ATU CTRL2 register is 32 bit, besides the enable bit, other bits may also be set. To check whether the ATU is enabled or not, we should test the enable it.
Signed-off-by: Jisheng Zhang <jszhang@marvell.com> --- drivers/pci/dwc/pcie-designware.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/pci/dwc/pcie-designware.c b/drivers/pci/dwc/pcie-designware.c index 0e03af279259..6bf0b409050a 100644 --- a/drivers/pci/dwc/pcie-designware.c +++ b/drivers/pci/dwc/pcie-designware.c @@ -177,7 +177,7 @@ void dw_pcie_prog_outbound_atu(struct dw_pcie *pci, int index, int type, */ 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; usleep_range(LINK_WAIT_IATU_MIN, LINK_WAIT_IATU_MAX); -- 2.13.2
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