Implement LP0-Entry BPMP Firmware

2018-02-23 04:13:18 -08:00
parent f7598cb433
commit 5370c7b150
12 changed files with 510 additions and 0 deletions
--- a/exosphere/bpmpfw/src/timer.h
+++ b/exosphere/bpmpfw/src/timer.h
@@ -0,0 +1,15 @@
+#ifndef EXOSPHERE_BPMPFW_TIMER_H
+#define EXOSPHERE_BPMPFW_TIMER_H
+
+#define TIMERUS_CNTR_1US_0 (*((volatile uint32_t *)(0x60005010)))
+
+static inline void timer_wait(uint32_t microseconds) {
+    uint32_t old_time = TIMERUS_CNTR_1US_0;
+    while (TIMERUS_CNTR_1US_0 - old_time <= microseconds) {
+        /* Spin-lock. */
+    }
+}
+
+void spinlock_wait(uint32_t count);
+
+#endif