arm64: dts: imx8mq: Add dbi2 and atu reg for i.MX8MQ PCIe EP

Add dbi2 and iatu reg for i.MX8MQ PCIe EP.

For i.MX8M PCIe EP, the dbi2 and atu addresses are pre-defined in the
driver. This method is not good.

In commit b7d67c6130ee ("PCI: imx6: Add iMX95 Endpoint (EP) support"),
Frank suggests to fetch the dbi2 and atu from DT directly. This commit is
preparation to do that for i.MX8MQ PCIe EP.

These changes wouldn't break driver function. When "dbi2" and "atu"
properties are present, i.MX PCIe driver would fetch the according base
addresses from DT directly. If only two reg properties are provided, i.MX
PCIe driver would fall back to the old method.

Signed-off-by: Richard Zhu <hongxing.zhu@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/imx8mq.dtsi b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
index e03186bbc415248a1e23c5fe83638c04bfcb9932..d51de8d899b2bd9e5398baa80211380a87167b8e 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mq.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq.dtsi
@@ -1819,9 +1819,11 @@
 
                pcie1_ep: pcie-ep@33c00000 {
                        compatible = "fsl,imx8mq-pcie-ep";
-                       reg = <0x33c00000 0x000400000>,
-                             <0x20000000 0x08000000>;
-                       reg-names = "dbi", "addr_space";
+                       reg = <0x33c00000 0x100000>,
+                             <0x20000000 0x8000000>,
+                             <0x33d00000 0x100000>,
+                             <0x33f00000 0x100000>;
+                       reg-names = "dbi", "addr_space", "dbi2", "atu";
                        num-lanes = <1>;
                        interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>;
                        interrupt-names = "dma";