From: gilles grimaud <[email protected]>
Signed-off-by: gilles grimaud <[email protected]>
---
tests/tcg/arm/Makefile.softmmu-target | 7 +-
tests/tcg/arm/system/rp2040-timer.S | 116 ++++++++++++++++++++++++++
tests/tcg/arm/system/rp2040-timer.ref | 2 +
3 files changed, 122 insertions(+), 3 deletions(-)
create mode 100644 tests/tcg/arm/system/rp2040-timer.S
create mode 100644 tests/tcg/arm/system/rp2040-timer.ref
diff --git a/tests/tcg/arm/Makefile.softmmu-target
b/tests/tcg/arm/Makefile.softmmu-target
index 28e4c5774a..f3efe619d1 100644
--- a/tests/tcg/arm/Makefile.softmmu-target
+++ b/tests/tcg/arm/Makefile.softmmu-target
@@ -22,7 +22,7 @@ ARM_TESTS+=test-armv6m-undef
RP2040_TESTS=rp2040-boot rp2040-uart rp2040-mpu \
rp2040-sio-fifo rp2040-sio-divider rp2040-psm-proc1 \
- rp2040-core1-launch
+ rp2040-core1-launch rp2040-timer
$(RP2040_TESTS): %: %.S rp2040-minimal.ld
$(CC) -mcpu=cortex-m0plus -mthumb -mfloat-abi=soft \
@@ -35,14 +35,15 @@ run-rp2040-boot: QEMU_OPTS=-M raspi-pico \
run-rp2040-uart run-rp2040-mpu \
run-rp2040-sio-fifo run-rp2040-sio-divider \
-run-rp2040-psm-proc1 run-rp2040-core1-launch: \
+run-rp2040-psm-proc1 run-rp2040-core1-launch run-rp2040-timer: \
QEMU_OPTS=-M raspi-pico,strict-uart-pins=off \
-serial chardev:output \
-semihosting-config enable=on,target=native -kernel
run-rp2040-uart run-rp2040-mpu \
run-rp2040-sio-fifo run-rp2040-sio-divider \
-run-rp2040-psm-proc1 run-rp2040-core1-launch: run-rp2040-%: rp2040-%
+run-rp2040-psm-proc1 run-rp2040-core1-launch \
+run-rp2040-timer: run-rp2040-%: rp2040-%
$(call run-test, $<, \
$(QEMU) -monitor none -display none \
-chardev file$(COMMA)path=$<.out$(COMMA)id=output \
diff --git a/tests/tcg/arm/system/rp2040-timer.S
b/tests/tcg/arm/system/rp2040-timer.S
new file mode 100644
index 0000000000..249df6433a
--- /dev/null
+++ b/tests/tcg/arm/system/rp2040-timer.S
@@ -0,0 +1,116 @@
+/*
+ * Raspberry Pi Pico timer alarm interrupt test.
+ *
+ * Copyright 2026 Gilles Grimaud
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+.syntax unified
+.cpu cortex-m0plus
+.thumb
+
+#define SRAM_END 0x20042000
+#define TEST_FLAG 0x20000000
+#define UART0_DR 0x40034000
+#define TIMER_BASE 0x40054000
+#define TIMER_ALARM0 0x10
+#define TIMER_RAWL 0x28
+#define TIMER_INTR 0x34
+#define TIMER_INTE 0x38
+#define NVIC_ISER 0xe000e100
+#define SYS_EXIT 0x18
+#define ADP_STOPPED_APPLICATION_EXIT 0x20026
+#define ADP_STOPPED_RUNTIME_ERROR 0x20023
+
+.section .vectors, "a", %progbits
+.global vector_table
+vector_table:
+ .word SRAM_END
+ .word reset_handler + 1
+ .word default_handler + 1
+ .word default_handler + 1
+ .rept 12
+ .word default_handler + 1
+ .endr
+ .word timer_irq + 1
+
+.section .text, "ax", %progbits
+.thumb_func
+.global reset_handler
+reset_handler:
+ ldr r0, =start_message
+ bl puts
+
+ ldr r0, =TEST_FLAG
+ movs r1, 0
+ str r1, [r0]
+
+ ldr r0, =NVIC_ISER
+ movs r1, 1
+ str r1, [r0]
+
+ ldr r4, =TIMER_BASE
+ str r1, [r4, TIMER_INTR]
+ str r1, [r4, TIMER_INTE]
+ ldr r2, [r4, TIMER_RAWL]
+ ldr r3, =1000
+ adds r2, r2, r3
+ str r2, [r4, TIMER_ALARM0]
+
+1:
+ ldr r0, =TEST_FLAG
+ ldr r1, [r0]
+ cmp r1, 0
+ beq 1b
+
+ ldr r0, =ok_message
+ bl puts
+ movs r0, SYS_EXIT
+ ldr r1, =ADP_STOPPED_APPLICATION_EXIT
+ bkpt 0xab
+
+2:
+ b 2b
+
+.thumb_func
+timer_irq:
+ ldr r0, =TIMER_BASE
+ movs r1, 1
+ str r1, [r0, TIMER_INTR]
+ ldr r0, =TEST_FLAG
+ str r1, [r0]
+ bx lr
+
+.thumb_func
+default_handler:
+ ldr r0, =fail_message
+ bl puts
+ movs r0, SYS_EXIT
+ ldr r1, =ADP_STOPPED_RUNTIME_ERROR
+ bkpt 0xab
+
+3:
+ b 3b
+
+.thumb_func
+puts:
+ ldr r2, =UART0_DR
+
+4:
+ ldrb r1, [r0]
+ cmp r1, 0
+ beq 5f
+ str r1, [r2]
+ adds r0, 1
+ b 4b
+
+5:
+ bx lr
+
+.section .rodata, "a", %progbits
+start_message:
+ .asciz "PICO TCG TIMER START\n"
+ok_message:
+ .asciz "PICO TCG TIMER OK\n"
+fail_message:
+ .asciz "PICO TCG TIMER FAIL\n"
diff --git a/tests/tcg/arm/system/rp2040-timer.ref
b/tests/tcg/arm/system/rp2040-timer.ref
new file mode 100644
index 0000000000..32e6e169b6
--- /dev/null
+++ b/tests/tcg/arm/system/rp2040-timer.ref
@@ -0,0 +1,2 @@
+PICO TCG TIMER START
+PICO TCG TIMER OK
--
2.55.0
