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jerzy pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/mynewt-core.git
The following commit(s) were added to refs/heads/master by this push:
new 1def077cf mcu/fe310: Export SystemCoreClock variable
1def077cf is described below
commit 1def077cfba35fdabe85ff295c5ecd7502501adb
Author: Jerzy Kasenberg <[email protected]>
AuthorDate: Wed Jan 25 14:48:57 2023 +0100
mcu/fe310: Export SystemCoreClock variable
This does not change anything special it just exports
SystemCoreClock that matches name commonly used in ARM
builds.
Old cpu_freq value was local declaration so there is no
risk of breaking anything.
Since there is no common way defined by mynewt for
application to get system clock frequency fe310 adopts
convention used by ARM code.
---
hw/mcu/sifive/fe310/src/sys_clock.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
diff --git a/hw/mcu/sifive/fe310/src/sys_clock.c
b/hw/mcu/sifive/fe310/src/sys_clock.c
index 2f408b346..dec04e19c 100644
--- a/hw/mcu/sifive/fe310/src/sys_clock.c
+++ b/hw/mcu/sifive/fe310/src/sys_clock.c
@@ -82,7 +82,7 @@ HFXOSC_2_MHZ = { 2000000, 1, 0, 0, 0, 0, 0, 0, 3}; /*
2 MHz */
const clock_config_t
HFXOSC_1_MHZ = { 1000000, 1, 0, 0, 0, 0, 0, 0, 7}; /* 1 MHz */
-static uint32_t cpu_freq;
+uint32_t SystemCoreClock;
static unsigned long __attribute__((noinline))
measure_cpu_freq(size_t n)
@@ -111,14 +111,14 @@ uint32_t
get_cpu_freq(void)
{
- if (!cpu_freq) {
+ if (!SystemCoreClock) {
// warm up I$
measure_cpu_freq(1);
// measure for real
- cpu_freq = measure_cpu_freq(10);
+ SystemCoreClock = measure_cpu_freq(10);
}
- return cpu_freq;
+ return SystemCoreClock;
}
void
@@ -136,7 +136,7 @@ select_clock(const clock_config_t *cfg)
while ((PRCI_REG(PRCI_HFROSCCFG) & ROSC_RDY(1)) == 0) {
}
/* Compute CPU frequency on demand */
- cpu_freq = 0;
+ SystemCoreClock = 0;
}
if (cfg->xosc) {
@@ -146,7 +146,7 @@ select_clock(const clock_config_t *cfg)
while ((PRCI_REG(PRCI_HFXOSCCFG) & XOSC_RDY(1)) == 0) {
}
}
- cpu_freq = cfg->frq;
+ SystemCoreClock = cfg->frq;
}
/*
