firmware: support configuration without ethphy (#886).

Currently, this is kasli.

artiq/firmware/bootloader/main.rs

@@ -159,7 +159,9 @@ fn network_boot() {
     println!("Using MAC address {} and IP address {}", eth_addr, ip_addr);
 
     let mut net_device = unsafe { ethmac::EthernetDevice::new() };
-    net_device.reset();
+
+    #[cfg(has_ethphy)]
+    net_device.reset_phy();
 
     let mut neighbor_map = [None; 2];
     let neighbor_cache =

artiq/firmware/libboard/ethmac.rs

@@ -4,7 +4,6 @@ use smoltcp::phy::{self, DeviceCapabilities, Device};
 
 use csr;
 use mem::ETHMAC_BASE;
-use clock;
 
 const RX_SLOTS: usize = csr::ETHMAC_RX_SLOTS as usize;
 const TX_SLOTS: usize = csr::ETHMAC_TX_SLOTS as usize;
@@ -47,7 +46,10 @@ impl EthernetDevice {
         EthernetDevice(())
     }
 
-    pub fn reset(&mut self) {
+    #[cfg(has_ethphy)]
+    pub fn reset_phy(&mut self) {
+        use clock;
+
         unsafe {
             csr::ethphy::crg_reset_write(1);
             clock::spin_us(2_000);

artiq/firmware/runtime/main.rs

@@ -149,7 +149,6 @@ fn startup_ethernet() {
     }
 
     let mut net_device = unsafe { ethmac::EthernetDevice::new() };
-    net_device.reset();
 
     // fn _net_trace_writer<U>(timestamp: u64, printer: smoltcp::wire::PrettyPrinter<U>)
     //         where U: smoltcp::wire::pretty_print::PrettyPrint {

artiq/frontend/artiq_devtool.py

@@ -39,7 +39,7 @@ def get_argparser():
     parser.add_argument("-t", "--target", metavar="TARGET",
                         type=str, default="kc705_dds",
                         help="Target to build, one of: "
-                             "kc705_dds sayma_amc_standalone "
+                             "kc705_dds kasli sayma_amc_standalone "
                              "sayma_amc_drtio_master sayma_amc_drtio_satellite")
 
     parser.add_argument("actions", metavar="ACTION",
@@ -56,7 +56,7 @@ def main():
     if args.verbose == args.quiet == 0:
         logging.getLogger().setLevel(logging.INFO)
 
-    if args.target in ["kc705_dds", "sayma_amc_standalone", "sayma_amc_drtio_master"]:
+    if args.target in ["kc705_dds", "kasli", "sayma_amc_standalone", "sayma_amc_drtio_master"]:
         firmware = "runtime"
     elif args.target == "sayma_amc_drtio_satellite":
         firmware = "satman"