Re: [RFC next-next v2 5/5] dt-bindings: marvell,prestera: Add address mapping for Prestera Switchdev PCIe driver
From: Andrew Lunn <andrew@lunn.ch>
Date: 2020-05-01 00:01:33
On Fri, May 01, 2020 at 02:20:52AM +0300, Vadym Kochan wrote:
quoted hunk ↗ jump to hunk
Document requirement for the PCI port which is connected to the ASIC, to allow access to the firmware related registers. Signed-off-by: Vadym Kochan <redacted> --- .../devicetree/bindings/net/marvell,prestera.txt | 13 +++++++++++++ 1 file changed, 13 insertions(+)diff --git a/Documentation/devicetree/bindings/net/marvell,prestera.txt b/Documentation/devicetree/bindings/net/marvell,prestera.txt index 83370ebf5b89..103c35cfa8a7 100644 --- a/Documentation/devicetree/bindings/net/marvell,prestera.txt +++ b/Documentation/devicetree/bindings/net/marvell,prestera.txt@@ -45,3 +45,16 @@ dfx-server { ranges = <0 MBUS_ID(0x08, 0x00) 0 0x100000>; reg = <MBUS_ID(0x08, 0x00) 0 0x100000>; }; + +Marvell Prestera SwitchDev bindings +----------------------------------- +The current implementation of Prestera Switchdev PCI interface driver requires +that BAR2 is assigned to 0xf6000000 as base address from the PCI IO range: + +&cp0_pcie0 { + ranges = <0x81000000 0x0 0xfb000000 0x0 0xfb000000 0x0 0xf0000 + 0x82000000 0x0 0xf6000000 0x0 0xf6000000 0x0 0x2000000 + 0x82000000 0x0 0xf9000000 0x0 0xf9000000 0x0 0x100000>; + phys = <&cp0_comphy0 0>; + status = "okay";
The base MAC address should be here as well. As was said for v1,
module parameters are bad.
Andrew