board: rename monitor to spi_monitor

The board-level monitor module orchestrates the SPI monitor (SPIPF) and
SCU mux control for SPI flash protection. Rename the file monitor.rs ->
spi_monitor.rs and the struct Ast1060Monitor -> Ast1060SpiMonitor, and
update the module path/re-export in lib.rs and the srcs list in
BUILD.bazel, to reflect that it is specifically an SPI monitor.

Assisted-by: Claude:claude-opus-4-8
Signed-off-by: Christina Quast <christina.quast@9elements.com>

target/ast10x0/board/BUILD.bazel

diff --git a/target/ast10x0/board/BUILD.bazel b/target/ast10x0/board/BUILD.bazel
index 34075da..29ec348 100644
--- a/target/ast10x0/board/BUILD.bazel
+++ b/target/ast10x0/board/BUILD.bazel
@@ -8,7 +8,7 @@
     name = "ast10x0_board",
     srcs = [
         "src/lib.rs",
-        "src/monitor.rs",
+        "src/spi_monitor.rs",
         "src/spim_wiring.rs",
     ],
     crate_name = "ast10x0_board",

target/ast10x0/board/src/lib.rs

diff --git a/target/ast10x0/board/src/lib.rs b/target/ast10x0/board/src/lib.rs
index 0f5f180..dd7445d 100644
--- a/target/ast10x0/board/src/lib.rs
+++ b/target/ast10x0/board/src/lib.rs
@@ -15,10 +15,10 @@
 use ast10x0_peripherals::scu::{ClockRegisterHalf, ScuRegisterHalf};
 use ast10x0_peripherals::scu::{PinctrlPin, ScuRegisters};
 
-pub mod monitor;
+pub mod spi_monitor;
 pub mod spim_wiring;
 
-pub use monitor::Ast1060Monitor;
+pub use spi_monitor::Ast1060SpiMonitor;
 pub use spim_wiring::{
     apply_spim_external_mux, apply_spim_pinctrl, apply_spim_wiring, apply_spim_wiring_with_log,
     bmc_spim_csin_levels, bmc_spim_path_debug, enable_flash_power, presets,

target/ast10x0/board/src/spi_monitor.rs

diff --git a/target/ast10x0/board/src/monitor.rs b/target/ast10x0/board/src/spi_monitor.rs
similarity index 95%
rename from target/ast10x0/board/src/monitor.rs
rename to target/ast10x0/board/src/spi_monitor.rs
index ae48623..62dfc72 100644
--- a/target/ast10x0/board/src/monitor.rs
+++ b/target/ast10x0/board/src/spi_monitor.rs
@@ -3,7 +3,7 @@
 
 //! Board-level SPI Monitor orchestration.
 //!
-//! `Ast1060Monitor` is the concrete implementation of the `Monitor` trait, orchestrating
+//! `Ast1060SpiMonitor` is the concrete implementation of the `Monitor` trait, orchestrating
 //! both SCU (for external mux control) and SPIPF (for enforcement, filtering, and locks).
 //!
 //! This layer ensures no duplication: mux control delegates to SCU routing, and SPIPF
@@ -33,7 +33,7 @@
 /// monitor.set_address_privilege(/*...*/)?;
 /// monitor.lock_policy(MonitorInstance::Spim0)?;
 /// ```
-pub struct Ast1060Monitor<'a> {
+pub struct Ast1060SpiMonitor<'a> {
     scu: &'a mut ScuRegisters,
     spipf: &'a mut [SpiMonitorRegisters; 4],
     read_blocked_region_count: u8,
@@ -41,7 +41,7 @@
     write_blocked_region_count: u8,
 }
 
-impl<'a> Ast1060Monitor<'a> {
+impl<'a> Ast1060SpiMonitor<'a> {
     /// Create a new board-level Monitor with access to both SCU and SPIPF.
     pub fn new(
         scu: &'a mut ScuRegisters,
@@ -125,7 +125,7 @@
     }
 }
 
-impl<'a> Monitor for Ast1060Monitor<'a> {
+impl<'a> Monitor for Ast1060SpiMonitor<'a> {
     fn set_mux(&mut self, instance: MonitorInstance, mux: MuxSelect) -> BootResult<()> {
         // External mux selection is controlled via SCU0F0 register.
         // Delegate to SCU routing layer which has the actual register access.
@@ -267,13 +267,13 @@
 
     #[test]
     fn test_enforcement_flag() {
-        assert!(!Ast1060Monitor::is_enforcement_active(0));
-        assert!(Ast1060Monitor::is_enforcement_active(1 << 4));
+        assert!(!Ast1060SpiMonitor::is_enforcement_active(0));
+        assert!(Ast1060SpiMonitor::is_enforcement_active(1 << 4));
     }
 
     #[test]
     fn test_lock_flag() {
-        assert!(!Ast1060Monitor::is_policy_locked(0));
-        assert!(Ast1060Monitor::is_policy_locked(1));
+        assert!(!Ast1060SpiMonitor::is_policy_locked(0));
+        assert!(Ast1060SpiMonitor::is_policy_locked(1));
     }
 }