On 6/1/22 02:47, Florian Fainelli wrote:
On 5/31/2022 5:42 PM, William Zhang wrote:Add dts for ARMv8 based broadband SoC BCM4912. bcm4912.dtsi is the SoC description dts header and bcm94912.dts is a simple dts file for Broadcom BCM94912 Reference board that only enable the UART port. Signed-off-by: William Zhang <william.zhang@xxxxxxxxxxxx> ---[snip]+ + axi@81000000 { + compatible = "simple-bus"; + #address-cells = <2>; + #size-cells = <2>;See comment below for the ubus node.+ ranges = <0x0 0x0 0x0 0x81000000 0x0 0x8000>; + + gic: interrupt-controller@1000 { + compatible = "arm,gic-400"; + #interrupt-cells = <3>; + interrupt-controller;+ interrupts = <GIC_PPI 9 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_LEVEL_HIGH)>;+ reg = <0x0 0x1000 0x0 0x1000>, + <0x0 0x2000 0x0 0x2000>, + <0x0 0x4000 0x0 0x2000>, + <0x0 0x6000 0x0 0x2000>; + }; + }; + + bus@ff800000 { + compatible = "simple-bus"; + #address-cells = <2>; + #size-cells = <2>;This does not quite make sense, as I doubt that this part of the bus is 64-bit capable, rather, I would expect to find both #address-cells and #size-cells to be set to 1 and ... (see below)
Agree. It can be simplified to use 32 bit address and size.
+ ranges = <0x0 0x0 0x0 0xff800000 0x0 0x800000>; + + uart0: serial@12000 { + compatible = "arm,pl011", "arm,primecell"; + reg = <0x0 0x12000 0x0 0x1000>;... have this become simply: reg = <0x12000 0x1000>:which also looks awfully big for an UART block, an entire 4KB worth of register space?
That is the correct based on the rdb.
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