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PCI: dwc: Fix ATU identification for designware version >= 4.80

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Synopsys designware version >= 4.80 uses a separate register space
for programming ATU. The current code identifies if there exists a
separate register space by accessing the register address of ATUs
in designware version < 4.80. Accessing this address results in
abort in the case of K2G.

Fix it here by adding "version" member to struct dw_pcie. This should be
set by platform specific drivers and designware core will use it to
identify if the platform has a separate ATU space. For platforms which
have not populated the version member, the old method of identification
will still be used.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
This commit is contained in:
Kishon Vijay Abraham I
2019-03-25 15:09:32 +05:30
committed by Lorenzo Pieralisi
parent a9f4c2d2f9
commit 2aadcb0cd3
2 changed files with 9 additions and 6 deletions
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1
drivers/pci/controller/dwc/pcie-designware.h
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@@ -234,6 +234,7 @@ struct dw_pcie {
struct pcie_port pp;
struct dw_pcie_ep ep;
const struct dw_pcie_ops *ops;
unsigned int version;
};
#define to_dw_pcie_from_pp(port) container_of((port), struct dw_pcie, pp)