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| author | Andrey Smirnov <andrew.smirnov@gmail.com> | 2018-12-16 21:19:15 -0800 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2019-01-08 16:28:48 +0100 |
| commit | 991a43ecaa59a0d54ab82c72336e31e02e92344d (patch) | |
| tree | 5f0c545bc77c0a35fdfaaeb43ce21726f7d82ad7 /drivers/pci | |
| parent | 9fe8695ad1c97604bb6a13d8167c5dd47f57a859 (diff) | |
| download | barebox-991a43ecaa59a0d54ab82c72336e31e02e92344d.tar.gz barebox-991a43ecaa59a0d54ab82c72336e31e02e92344d.tar.xz | |
PCI: dwc: designware: Test PCIE_ATU_ENABLE bit specifically
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@marvell.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Joao Pinto <jpinto@synopsys.com>
Acked-by: Jingoo Han <jingoohan1@gmail.com>
Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/pcie-designware.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pci/pcie-designware.c b/drivers/pci/pcie-designware.c index 5c476e8150..d2d4fe34a2 100644 --- a/drivers/pci/pcie-designware.c +++ b/drivers/pci/pcie-designware.c @@ -183,7 +183,7 @@ 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); |