[PATCH v1 3/9] PCI: imx6: Fetch dbi2 and iATU base addesses from DT

Richard Zhu
2024-09-24T03:55:10Z

Since dbi2 and atu regs are added for i.MX8M PCIes. Fetch the dbi2 and iATU
base addresses from DT directly, and remove the useless codes.

Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
---
drivers/pci/controller/dwc/pci-imx6.c | 20 --------------------
1 file changed, 20 deletions(-)

diff --git a/drivers/pci/controller/dwc/pci-imx6.c b/drivers/pci/controller/dwc/pci-imx6.c
index 2aa02674c817..e8e401729893 100644
--- a/drivers/pci/controller/dwc/pci-imx6.c
+++ b/drivers/pci/controller/dwc/pci-imx6.c
@@ -1113,7 +1113,6 @@ static int imx_add_pcie_ep(struct imx_pcie *imx_pcie,
struct platform_device *pdev)
{
int ret;
- unsigned int pcie_dbi2_offset;
struct dw_pcie_ep *ep;
struct dw_pcie *pci = imx_pcie->pci;
struct dw_pcie_rp *pp = &pci->pp;
@@ -1123,25 +1122,6 @@ static int imx_add_pcie_ep(struct imx_pcie *imx_pcie,
ep = &pci->ep;
ep->ops = &pcie_ep_ops;

- switch (imx_pcie->drvdata->variant) {
- case IMX8MQ_EP:
- case IMX8MM_EP:
- case IMX8MP_EP:
- pcie_dbi2_offset = SZ_1M;
- break;
- default:
- pcie_dbi2_offset = SZ_4K;
- break;
- }
-
- pci->dbi_base2 = pci->dbi_base + pcie_dbi2_offset;
-
- /*
- * FIXME: Ideally, dbi2 base address should come from DT. But since only IMX95 is defining
- * "dbi2" in DT, "dbi_base2" is set to NULL here for that platform alone so that the DWC
- * core code can fetch that from DT. But once all platform DTs were fixed, this and the
- * above "dbi_base2" setting should be removed.
- */
if (device_property_match_string(dev, "reg-names", "dbi2") >= 0)
pci->dbi_base2 = NULL;

--
2.37.1