firmware: load slave FPGA in bootloader

artiq/firmware/bootloader/main.rs

@@ -11,6 +11,8 @@ use core::{ptr, slice};
 use crc::crc32;
 use byteorder::{ByteOrder, BigEndian};
 use board_misoc::{ident, cache, sdram, boot, mem as board_mem};
+#[cfg(has_slave_fpga_cfg)]
+use board_misoc::slave_fpga;
 #[cfg(has_ethmac)]
 use board_misoc::{clock, ethmac, net_settings};
 use board_misoc::uart_console::Console;
@@ -110,6 +112,43 @@ fn startup() -> bool {
     true
 }
 
+#[cfg(has_slave_fpga_cfg)]
+fn load_slave_fpga() {
+    println!("Loading slave FPGA gateware...");
+
+    const GATEWARE: *mut u8 = board_misoc::csr::CONFIG_SLAVE_FPGA_GATEWARE as *mut u8;
+
+    let header = unsafe { slice::from_raw_parts(GATEWARE, 8) };
+    let magic = BigEndian::read_u32(&header[0..]);
+    let length = BigEndian::read_u32(&header[4..]) as usize;
+    println!("  magic: 0x{:08x}, length: 0x{:08x}", magic, length);
+    if magic != 0x5352544d {
+        println!("  ...Error: bad magic");
+        return
+    }
+    if length > 0x220000 {
+        println!("  ...Error: too long (corrupted?)");
+        return
+    }
+    let payload = unsafe { slice::from_raw_parts(GATEWARE.offset(8), length) };
+
+    if let Err(e) = slave_fpga::prepare() {
+        println!("  ...Error during preparation: {}", e);
+        return
+    }
+    if let Err(e) = slave_fpga::input(payload) {
+        println!("  ...Error during loading: {}", e);
+        return
+    }
+    if let Err(e) = slave_fpga::complete() {
+        println!("  ...Error during completion: {}", e);
+        return
+    }
+
+    println!("  ...done");
+}
+
+
 fn flash_boot() {
     const FIRMWARE: *mut u8 = board_mem::FLASH_BOOT_ADDRESS as *mut u8;
     const MAIN_RAM: *mut u8 = board_mem::MAIN_RAM_BASE as *mut u8;
@@ -379,6 +418,8 @@ pub extern fn main() -> i32 {
 
     if startup() {
         println!("");
+        #[cfg(has_slave_fpga_cfg)]
+        load_slave_fpga();
         flash_boot();
         #[cfg(has_ethmac)]
         network_boot();

artiq/firmware/libboard_artiq/lib.rs

@@ -27,8 +27,6 @@ pub mod rpc_queue;
 #[cfg(has_si5324)]
 pub mod si5324;
 
-#[cfg(has_slave_fpga_cfg)]
-pub mod slave_fpga;
 #[cfg(has_hmc830_7043)]
 pub mod hmc830_7043;
 #[cfg(has_ad9154)]

artiq/firmware/libboard_misoc/lib.rs

@@ -27,8 +27,10 @@ pub mod uart;
 pub mod spiflash;
 pub mod config;
 #[cfg(feature = "uart_console")]
+#[macro_use]
 pub mod uart_console;
 #[cfg(all(feature = "uart_console", feature = "log"))]
+#[macro_use]
 pub mod uart_logger;
 #[cfg(all(has_ethmac, feature = "smoltcp"))]
 pub mod ethmac;
@@ -37,3 +39,5 @@ pub mod i2c;
 pub mod i2c_eeprom;
 #[cfg(all(has_ethmac, feature = "smoltcp"))]
 pub mod net_settings;
+#[cfg(has_slave_fpga_cfg)]
+pub mod slave_fpga;

artiq/firmware/libboard_misoc/slave_fpga.rs

@@ -1,6 +1,4 @@
-use board_misoc::{csr, clock};
-use core::slice;
-use byteorder::{ByteOrder, BigEndian};
+use super::{csr, clock};
 
 const CCLK_BIT: u8 = 1 << 0;
 const DIN_BIT: u8 = 1 << 1;
@@ -8,8 +6,6 @@ const DONE_BIT: u8 = 1 << 2;
 const INIT_B_BIT: u8 = 1 << 3;
 const PROGRAM_B_BIT: u8 = 1 << 4;
 
-const GATEWARE: *mut u8 = csr::CONFIG_SLAVE_FPGA_GATEWARE as *mut u8;
-
 unsafe fn shift_u8(data: u8) {
     for i in 0..8 {
         let mut bits: u8 = PROGRAM_B_BIT;
@@ -27,10 +23,10 @@ unsafe fn shift_u8(data: u8) {
 pub fn prepare() -> Result<(), &'static str> {
     unsafe {
         if csr::slave_fpga_cfg::in_read() & DONE_BIT != 0 {
-            info!("  DONE before loading");
+            println!("  DONE before loading");
         }
         if csr::slave_fpga_cfg::in_read() & INIT_B_BIT == 0 {
-            info!("  INIT asserted before loading");
+            println!("  INIT asserted before loading");
         }
 
         csr::slave_fpga_cfg::out_write(0);
@@ -78,26 +74,3 @@ pub fn complete() -> Result<(), &'static str> {
     }
     Ok(())
 }
-
-pub fn load() -> Result<(), &'static str> {
-    info!("Loading slave FPGA gateware...");
-
-    let header = unsafe { slice::from_raw_parts(GATEWARE, 8) };
-
-    let magic = BigEndian::read_u32(&header[0..]);
-    let length = BigEndian::read_u32(&header[4..]) as usize;
-    info!("  magic: 0x{:08x}, length: 0x{:08x}", magic, length);
-    if magic != 0x5352544d {  // "SRTM", see sayma_rtm target as well
-        return Err("Bad magic");
-    }
-    if length > 0x220000 {
-        return Err("Too large (corrupted?)");
-    }
-
-    prepare()?;
-    input(unsafe { slice::from_raw_parts(GATEWARE.offset(8), length) })?;
-    complete()?;
-
-    info!("  ...done");
-    Ok(())
-}

artiq/firmware/runtime/main.rs

@@ -89,9 +89,6 @@ fn setup_log_levels() {
 }
 
 fn sayma_hw_init() {
-    #[cfg(has_slave_fpga_cfg)]
-    board_artiq::slave_fpga::load().expect("cannot load RTM FPGA gateware");
-
     #[cfg(has_hmc830_7043)]
     /* must be the first SPI init because of HMC830 SPI mode selection */
     board_artiq::hmc830_7043::init().expect("cannot initialize HMC830/7043");

artiq/firmware/satman/main.rs

@@ -448,9 +448,6 @@ pub extern fn main() -> i32 {
     info!("software ident {}", csr::CONFIG_IDENTIFIER_STR);
     info!("gateware ident {}", ident::read(&mut [0; 64]));
 
-    #[cfg(has_slave_fpga_cfg)]
-    board_artiq::slave_fpga::load().expect("cannot load RTM FPGA gateware");
-
     i2c::init().expect("I2C initialization failed");
     si5324::setup(&SI5324_SETTINGS, si5324::Input::Ckin1).expect("cannot initialize Si5324");
     unsafe {