main: add latest experimentation code
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125
src/main.rs
125
src/main.rs
@ -10,13 +10,14 @@
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#![allow(dead_code)]
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extern crate alloc;
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use alloc::{vec, vec::Vec};
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use core::mem::transmute;
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use compiler_builtins as _;
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use smoltcp::wire::{EthernetAddress, IpAddress, IpCidr};
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use smoltcp::iface::{NeighborCache, EthernetInterfaceBuilder};
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use smoltcp::time::Instant;
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use smoltcp::socket::SocketSet;
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use smoltcp::socket::{TcpSocket, TcpSocketBuffer};
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mod boot;
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mod regs;
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@ -26,11 +27,17 @@ mod panic;
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mod zynq;
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mod stdio;
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mod ram;
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use cortex_a9::mutex::Mutex;
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const HWADDR: [u8; 6] = [0, 0x23, 0xde, 0xea, 0xbe, 0xef];
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static mut STACK_CORE1: [u32; 512] = [0; 512];
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pub fn main() {
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// zynq::clocks::CpuClocks::enable_io(1_250_000_000);
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println!("\nzc706 main");
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use regs::RegisterR;
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println!("Boot mode: {:?}", zynq::slcr::RegisterBlock::new().boot_mode.read().boot_mode_pins());
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let mut flash = zynq::flash::Flash::new(200_000_000).linear_addressing_mode();
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let flash_ram: &[u8] = unsafe { core::slice::from_raw_parts(flash.ptr(), flash.size()) };
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@ -44,30 +51,71 @@ pub fn main() {
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let mut flash = flash.stop();
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let mut ddr = zynq::ddr::DdrRam::new();
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println!("DDR: {:?}", ddr.status());
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#[cfg(not(feature = "target_zc706"))]
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ddr.memtest();
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ram::init_alloc(&mut ddr);
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for i in 0..=1 {
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let mut flash_io = flash.manual_mode(i);
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// println!("rdcr={:02X}", flash_io.rdcr());
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print!("Flash {} ID:", i);
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for b in flash_io.rdid() {
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print!(" {:02X}", b);
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}
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println!("");
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print!("Flash {} I/O:", i);
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for o in 0..4 {
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for b in flash_io.read(32 * o, 32) {
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for o in 0..8 {
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const CHUNK: u32 = 8;
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for b in flash_io.read(CHUNK * o, CHUNK as usize) {
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print!(" {:02X}", b);
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}
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}
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println!("");
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flash_io.dump("Read cr1", 0x35);
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flash_io.dump("Read Autoboot", 0x14);
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flash_io.dump("Read Bank", 0x16);
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flash_io.dump("DLP Bank", 0x16);
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flash_io.dump("Read ESig", 0xAB);
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flash_io.dump("OTP Read", 0x4B);
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flash_io.dump("DYB Read", 0xE0);
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flash_io.dump("PPB Read", 0xE2);
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flash_io.dump("ASP Read", 0x2B);
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flash_io.dump("Password Read", 0xE7);
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flash_io.write_enabled(|flash_io| {
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flash_io.erase(0);
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});
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flash_io.write_enabled(|flash_io| {
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flash_io.program(0, [0x23054223; (0x100 >> 2)].iter().cloned());
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});
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flash = flash_io.stop();
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}
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let core1_stack = vec![0; 2048];
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let core1_stack = unsafe { &mut STACK_CORE1[..] };
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println!("{} bytes stack for core1", core1_stack.len());
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boot::Core1::start(core1_stack);
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let core1 = boot::Core1::start(core1_stack);
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for _ in 0..0x1000000 {
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let mut l = SHARED.lock();
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*l += 1;
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}
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while !*DONE.lock() {
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let x = { *SHARED.lock() };
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println!("shared: {:08X}", x);
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}
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let x = { *SHARED.lock() };
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println!("done shared: {:08X}", x);
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core1.stop();
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cortex_a9::asm::dsb();
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print!("Core1 stack [{:08X}..{:08X}]:", &core1.stack[0] as *const _ as u32, &core1.stack[core1.stack.len() - 1] as *const _ as u32);
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for w in core1.stack {
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print!(" {:08X}", w);
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}
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println!(".");
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let eth = zynq::eth::Eth::default(HWADDR.clone());
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println!("Eth on");
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@ -109,6 +157,16 @@ pub fn main() {
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];
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let mut sockets = SocketSet::new(&mut sockets_storage[..]);
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// taken from example code for smoltcp
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let mut tcp_server_rx_data = vec![0; 512 * 1024];
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let mut tcp_server_tx_data = vec![0; 512 * 1024];
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let tcp_rx_buffer = TcpSocketBuffer::new(&mut tcp_server_rx_data[..]);
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let tcp_tx_buffer = TcpSocketBuffer::new(&mut tcp_server_tx_data[..]);
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let tcp_socket = TcpSocket::new(tcp_rx_buffer, tcp_tx_buffer);
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let tcp_handle = sockets.add(tcp_socket);
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/// `chargen`
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const TCP_PORT: u16 = 19;
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let mut time = 0u32;
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loop {
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time += 1;
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@ -121,36 +179,41 @@ pub fn main() {
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}
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}
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// match eth.recv_next() {
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// Ok(Some(pkt)) => {
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// print!("eth: rx {} bytes", pkt.len());
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// for b in pkt.iter() {
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// print!(" {:02X}", b);
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// }
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// println!("");
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// }
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// Ok(None) => {}
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// Err(e) => {
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// println!("eth rx error: {:?}", e);
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// }
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// }
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// match eth.send(512) {
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// Some(mut pkt) => {
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// let mut x = 0;
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// for b in pkt.iter_mut() {
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// *b = x;
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// x += 1;
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// }
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// println!("eth tx {} bytes", pkt.len());
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// }
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// None => println!("eth tx shortage"),
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// }
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// (mostly) taken from smoltcp example: TCP echo server
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let mut socket = sockets.get::<TcpSocket>(tcp_handle);
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if !socket.is_open() {
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socket.listen(TCP_PORT).unwrap()
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}
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if socket.may_recv() && socket.can_send() {
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socket.recv(|buf| {
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let len = buf.len().min(4096);
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let buffer = buf[..len].iter().cloned().collect::<Vec<_>>();
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(len, buffer)
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})
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.and_then(|buffer| socket.send_slice(&buffer[..]))
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.map(|_| {})
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.unwrap_or_else(|e| println!("tcp: {:?}", e));
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}
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}
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// #[allow(unreachable_code)]
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// drop(tx_descs);
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// #[allow(unreachable_code)]
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// drop(tx_buffers);
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}
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static SHARED: Mutex<u32> = Mutex::new(0);
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static DONE: Mutex<bool> = Mutex::new(false);
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pub fn main_core1() {
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println!("Hello from core1!");
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for _ in 0..0x1000000 {
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let mut l = SHARED.lock();
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*l += 1;
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}
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println!("core1 done!");
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*DONE.lock() = true;
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loop {}
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}
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@ -494,3 +494,13 @@ impl Flash<Manual> {
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Transfer::new(self, args, len)
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}
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pub fn dump(&mut self, label: &'_ str, inst_code: u8) {
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print!("{}:", label);
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let args = Some(u32::from(inst_code) << 24);
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for b in self.transfer(args.into_iter(), 32).bytes_transfer() {
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print!(" {:02X}", b);
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}
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println!("");
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}
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}
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