Function create_timer_node

arch/src/aarch64/fdt.rs:723–749

(fdt: &mut FdtWriter)

}

fn create_timer_node(fdt: &mut FdtWriter) -> FdtWriterResult<()> {
    // See
    // https://github.com/torvalds/linux/blob/master/Documentation/devicetree/bindings/timer/arm%2Carch_timer.yaml
    // These are fixed interrupt numbers for the timer device.
    let irqs = [
        AARCH64_ARCH_TIMER_PHYS_SECURE_IRQ,
        AARCH64_ARCH_TIMER_PHYS_NONSECURE_IRQ,
        AARCH64_ARCH_TIMER_VIRT_IRQ,
        AARCH64_ARCH_TIMER_HYP_IRQ,
    ];
    let compatible = "arm,armv8-timer";

    let mut timer_reg_cells: Vec<u32> = Vec::new();
    for &irq in irqs.iter() {
        timer_reg_cells.push(GIC_FDT_IRQ_TYPE_PPI);
        timer_reg_cells.push(irq);
        timer_reg_cells.push(IRQ_TYPE_LEVEL_HI);
    }

    let timer_node = fdt.begin_node("timer")?;
    fdt.property_string("compatible", compatible)?;
    fdt.property_null("always-on")?;
    fdt.property_array_u32("interrupts", &timer_reg_cells)?;
    fdt.end_node(timer_node)?;

    Ok(())
}

fn create_psci_node(fdt: &mut FdtWriter) -> FdtWriterResult<()> {
    let compatible = "arm,psci-0.2";