diff options
Diffstat (limited to 'nuttx/arch/arm/src/kinetis/kinetis_clockconfig.c')
| -rw-r--r-- | nuttx/arch/arm/src/kinetis/kinetis_clockconfig.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/nuttx/arch/arm/src/kinetis/kinetis_clockconfig.c b/nuttx/arch/arm/src/kinetis/kinetis_clockconfig.c index 8d383523a..9bc6c1659 100644 --- a/nuttx/arch/arm/src/kinetis/kinetis_clockconfig.c +++ b/nuttx/arch/arm/src/kinetis/kinetis_clockconfig.c @@ -362,6 +362,12 @@ kinesis_setdividers(uint32_t div1, uint32_t div2, uint32_t div3, uint32_t div4) /* Set clock dividers to desired value */ + /* XXX: WARNING! + * + * For some reason, if the optimization level is not set for size + * (-Os) on GCC 4.8.4, the below register assignment will cause this + * function to never return. + */ putreg32(SIM_CLKDIV1_OUTDIV1(div1) | SIM_CLKDIV1_OUTDIV2(div2) | SIM_CLKDIV1_OUTDIV3(div3) | SIM_CLKDIV1_OUTDIV4(div4), KINETIS_SIM_CLKDIV1); |