riscv_goldfish

基于goldfish的riscv系统实时时钟(RTC)驱动程序。

示例

use riscv_goldfish::Rtc;

let epoch_time = Rtc::new(0x10_1000).get_unix_timestamp();

base_addr 需要是设备虚拟地址，该地址可用于mmio，可以从设备树中获取，例如

soc {
    #address-cells = <0x02>;
    #size-cells = <0x02>;
    compatible = "simple-bus";
    ranges;

    rtc@101000 {
        interrupts = <0x0b>;
        interrupt-parent = <0x03>;
        reg = <0x00 0x101000 0x00 0x1000>;
        compatible = "google,goldfish-rtc";
    };

    ...
}

lib.rs:

基于goldfish的riscv系统实时时钟(RTC)驱动程序。参考： https://github.com/torvalds/linux/blob/master/drivers/rtc/rtc-goldfish.c