[PATCH] PCI: dwc: designware: test PCIE_ATU_ENABLE bit to check enabled or not

From	Jisheng Zhang <jszhang@marvell.com>
Newsgroups	linux.kernel
Subject	[PATCH] PCI: dwc: designware: test PCIE_ATU_ENABLE bit to check enabled or not
Date	2017-07-13 12:50 +0200
Message-ID	<u2JR0-4v9-9@gated-at.bofh.it> (permalink)
Organization	linux.* mail to news gateway

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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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[PATCH] PCI: dwc: designware: test PCIE_ATU_ENABLE bit to check enabled or not Jisheng Zhang <jszhang@marvell.com> - 2017-07-13 12:50 +0200
  Re: [PATCH] PCI: dwc: designware: test PCIE_ATU_ENABLE bit to check  enabled or not Joao Pinto <Joao.Pinto@synopsys.com> - 2017-07-17 11:30 +0200
    Re: [PATCH] PCI: dwc: designware: test PCIE_ATU_ENABLE bit to check enabled or not "Jingoo Han" <jingoohan1@gmail.com> - 2017-07-17 21:40 +0200

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