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vmm: AArch64: Use PL011 for AArch64 device tree

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This commit switches the default serial device from 16550 to the
Arm dedicated UART controller PL011. The `ttyAMA0` can be enabled.

Signed-off-by: Henry Wang <Henry.Wang@arm.com>
This commit is contained in:
Henry Wang
2021-03-12 13:18:52 +08:00
committed by Michael
parent fd95acc60f
commit a8cde12b14
2 changed files with 16 additions and 9 deletions
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5
arch/src/aarch64/fdt.rs
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@@ -487,11 +487,12 @@ fn create_serial_node<T: DeviceInfoForFDT + Clone + Debug>(
fdt: &mut Vec<u8>,
dev_info: &T,
) -> Result<()> {
let compatible = b"arm,pl011\0arm,primecell\0";
let serial_reg_prop = generate_prop64(&[dev_info.addr(), dev_info.length()]);
let irq = generate_prop32(&[GIC_FDT_IRQ_TYPE_SPI, dev_info.irq(), IRQ_TYPE_EDGE_RISING]);
append_begin_node(fdt, &format!("U6_16550A@{:x}", dev_info.addr()))?;
append_property_string(fdt, "compatible", "ns16550a")?;
append_begin_node(fdt, &format!("pl011@{:x}", dev_info.addr()))?;
append_property(fdt, "compatible", compatible)?;
append_property(fdt, "reg", &serial_reg_prop)?;
append_property_u32(fdt, "clocks", CLOCK_PHANDLE)?;
append_property_string(fdt, "clock-names", "apb_pclk")?;