From 43ceddb563a3c77b03d73b35491dd427b4d14466 Mon Sep 17 00:00:00 2001 From: Dreaded_X Date: Fri, 15 Sep 2023 19:14:38 +0200 Subject: [PATCH] Moved the bootloader out of the pico_p1 project --- .cargo/config.toml | 6 + .cargo/runner.sh | 3 + .gitignore | 1 + bootloader/.cargo/config.toml | 6 + bootloader/Cargo.lock | 1418 +++++++++++++++++++++++++++++++++ bootloader/Cargo.toml | 37 + bootloader/Embed.toml | 2 + bootloader/build.rs | 36 + bootloader/memory.x.in | 22 + bootloader/src/main.rs | 46 ++ rust-toolchain.toml | 3 + 11 files changed, 1580 insertions(+) create mode 100644 .cargo/config.toml create mode 100755 .cargo/runner.sh create mode 100644 .gitignore create mode 100644 bootloader/.cargo/config.toml create mode 100644 bootloader/Cargo.lock create mode 100644 bootloader/Cargo.toml create mode 100644 bootloader/Embed.toml create mode 100644 bootloader/build.rs create mode 100644 bootloader/memory.x.in create mode 100644 bootloader/src/main.rs create mode 100644 rust-toolchain.toml diff --git a/.cargo/config.toml b/.cargo/config.toml new file mode 100644 index 0000000..9e8b83c --- /dev/null +++ b/.cargo/config.toml @@ -0,0 +1,6 @@ +[build] +target = "thumbv6m-none-eabi" + +[target.'cfg(all(target_arch = "arm", target_os = "none"))'] +# This needs to be put in a seperate script because the log arguments do not get parsed properly +runner = ".cargo/runner.sh" diff --git a/.cargo/runner.sh b/.cargo/runner.sh new file mode 100755 index 0000000..370f144 --- /dev/null +++ b/.cargo/runner.sh @@ -0,0 +1,3 @@ +#!/bin/bash +probe-run --chip RP2040 --log-format="{L} {s} +└─ [{t}] {m} @ {F}:{l}" $@ diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..2f7896d --- /dev/null +++ b/.gitignore @@ -0,0 +1 @@ +target/ diff --git a/bootloader/.cargo/config.toml b/bootloader/.cargo/config.toml new file mode 100644 index 0000000..65abec3 --- /dev/null +++ b/bootloader/.cargo/config.toml @@ -0,0 +1,6 @@ +[unstable] +build-std = ["core"] 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features = ["nightly"] } +embassy-sync = { version = "0.3", features = ["nightly"] } + +cortex-m = { version = "0.7", features = [ + "inline-asm", + "critical-section-single-core", +] } +cortex-m-rt = { version = "0.7" } +embedded-storage = "0.3.0" + +[patch.crates-io] +# This is needed as embassy-rp is not on crates.io +embassy-boot = { git = "https://github.com/embassy-rs/embassy" } +embassy-boot-rp = { git = "https://github.com/embassy-rs/embassy" } +embassy-rp = { git = "https://github.com/embassy-rs/embassy" } +embassy-sync = { git = "https://github.com/embassy-rs/embassy" } + +[features] +defmt = ["dep:defmt", "embassy-boot/defmt", "embassy-boot-rp/defmt", "embassy-rp/defmt", "embassy-sync/defmt"] +debug = ["defmt-rtt", "defmt"] + +[profile.release] +debug = true +opt-level = 's' +codegen-units = 1 +lto = true diff --git a/bootloader/Embed.toml b/bootloader/Embed.toml new file mode 100644 index 0000000..c0614e5 --- /dev/null +++ b/bootloader/Embed.toml @@ -0,0 +1,2 @@ +[default.general] +chip = "rp2040" diff --git a/bootloader/build.rs b/bootloader/build.rs new file mode 100644 index 0000000..e1c857a --- /dev/null +++ b/bootloader/build.rs @@ -0,0 +1,36 @@ +use std::env; +use std::fs::File; +use std::io::Write; +use std::path::PathBuf; + +fn main() { + let out = &PathBuf::from(env::var_os("OUT_DIR").unwrap()); + + // By default cortex-m-rt expects memory.x, however this causes issues with workspaces as it + // will pick the first file that is found. + // In order to get around this we make a dummy memory.x file + File::create(out.join("memory.x")).unwrap(); + + // Use memory.x.in as a template for the actual memory.x + let memory = include_str!("memory.x.in") + .replace("{BOOTLOADER}", "FLASH") + .replace("{ACTIVE}", "ACTIVE"); + + // And then include it with a unique name + File::create(out.join("memory_boot.x")) + .unwrap() + .write_all(memory.as_bytes()) + .unwrap(); + println!("cargo:rustc-link-search={}", out.display()); + println!("cargo:rerun-if-changed=../memory.x.in"); + + // And link with that one + println!("cargo:rustc-link-arg-bins=-Tmemory_boot.x"); + + println!("cargo:rustc-link-arg-bins=--nmagic"); + println!("cargo:rustc-link-arg-bins=-Tlink.x"); + println!("cargo:rustc-link-arg-bins=-Tlink-rp.x"); + if env::var("CARGO_FEATURE_DEFMT").is_ok() { + println!("cargo:rustc-link-arg-bins=-Tdefmt.x"); + } +} diff --git a/bootloader/memory.x.in b/bootloader/memory.x.in new file mode 100644 index 0000000..9decd72 --- /dev/null +++ b/bootloader/memory.x.in @@ -0,0 +1,22 @@ +MEMORY { + BOOT2 : ORIGIN = 0x10000000, LENGTH = 0x100 + {BOOTLOADER} : ORIGIN = 0x10000100, LENGTH = 24k - 0x100 + BOOTLOADER_STATE : ORIGIN = 0x10006000, LENGTH = 4k + {ACTIVE} : ORIGIN = 0x10007000, LENGTH = 876k + DFU : ORIGIN = 0x100E2000, LENGTH = 880k + FW : ORIGIN = 0x101BE000, LENGTH = 256k + CLM : ORIGIN = 0x101FE000, LENGTH = 8k + RAM : ORIGIN = 0x20000000, LENGTH = 264K +} + +__bootloader_state_start = ORIGIN(BOOTLOADER_STATE) - ORIGIN(BOOT2); +__bootloader_state_end = ORIGIN(BOOTLOADER_STATE) + LENGTH(BOOTLOADER_STATE) - ORIGIN(BOOT2); + +__bootloader_active_start = ORIGIN({ACTIVE}) - ORIGIN(BOOT2); +__bootloader_active_end = ORIGIN({ACTIVE}) + LENGTH({ACTIVE}) - ORIGIN(BOOT2); + +__bootloader_dfu_start = ORIGIN(DFU) - ORIGIN(BOOT2); +__bootloader_dfu_end = ORIGIN(DFU) + LENGTH(DFU) - ORIGIN(BOOT2); + +__fw_start = ORIGIN(FW); +__clm_start = ORIGIN(CLM); diff --git a/bootloader/src/main.rs b/bootloader/src/main.rs new file mode 100644 index 0000000..b14e444 --- /dev/null +++ b/bootloader/src/main.rs @@ -0,0 +1,46 @@ +#![no_std] +#![no_main] + +use core::cell::RefCell; + +use cortex_m_rt::{entry, exception}; +#[cfg(feature = "defmt")] +use defmt_rtt as _; +use embassy_boot_rp::*; +use embassy_rp::flash::{Blocking, Flash}; +use embassy_sync::blocking_mutex::Mutex; + +const FLASH_SIZE: usize = 2 * 1024 * 1024; + +#[entry] +fn main() -> ! { + let p = embassy_rp::init(Default::default()); + + let flash = Flash::<_, Blocking, FLASH_SIZE>::new_blocking(p.FLASH); + let flash = Mutex::new(RefCell::new(flash)); + + let config = BootLoaderConfig::from_linkerfile_blocking(&flash); + let active_offset = config.active.offset(); + let bl: BootLoader = BootLoader::prepare(config); + + unsafe { bl.load(embassy_rp::flash::FLASH_BASE as u32 + active_offset) } +} + +#[no_mangle] +#[cfg_attr(target_os = "none", link_section = ".HardFault.user")] +unsafe extern "C" fn HardFault() { + cortex_m::peripheral::SCB::sys_reset(); +} + +#[exception] +unsafe fn DefaultHandler(_: i16) -> ! { + const SCB_ICSR: *const u32 = 0xE000_ED04 as *const u32; + let irqn = core::ptr::read_volatile(SCB_ICSR) as u8 as i16 - 16; + + panic!("DefaultHandler #{:?}", irqn); +} + +#[panic_handler] +fn panic(_info: &core::panic::PanicInfo) -> ! { + cortex_m::asm::udf(); +} diff --git a/rust-toolchain.toml b/rust-toolchain.toml new file mode 100644 index 0000000..19d011e --- /dev/null +++ b/rust-toolchain.toml @@ -0,0 +1,3 @@ +[toolchain] +channel = "nightly" +targets = ["thumbv6m-none-eabi"]