andreil/klipper
1
0
Fork 0
mirror of https://github.com/andreili/klipper.git synced 2025-08-24 03:44:06 +02:00
Code Issues Packages Projects Releases Wiki Activity

stm32: Enable VOS0 power mode on stm32h723 if frequency above 400Mhz

Browse Source 
Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2025-04-22 01:25:03 -04:00
parent 7f4f696f10
commit cf3bedfbdc
1 changed files with 15 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
src/stm32/stm32h7.c
View File

@ -123,20 +123,24 @@ clock_setup(void)
// Set PLL1P cpu clock frequency // Set PLL1P cpu clock frequency
| ((pll_freq/CONFIG_CLOCK_FREQ - 1) << RCC_PLL1DIVR_P1_Pos); | ((pll_freq/CONFIG_CLOCK_FREQ - 1) << RCC_PLL1DIVR_P1_Pos);
// Enable VOS1 power mode // Enable VOS1 power mode (or VOS0 if freq>400Mhz)
if (CONFIG_MACH_STM32H723) {
PWR->D3CR = (CONFIG_CLOCK_FREQ > 400000000 ? 0 : 3) << PWR_D3CR_VOS_Pos;
while (!(PWR->D3CR & PWR_D3CR_VOSRDY))
;
} else {
PWR->D3CR = 3 << PWR_D3CR_VOS_Pos; PWR->D3CR = 3 << PWR_D3CR_VOS_Pos;
while (!(PWR->D3CR & PWR_D3CR_VOSRDY)) while (!(PWR->D3CR & PWR_D3CR_VOSRDY))
; ;
// Enable VOS0 (overdrive) on stm32h743/stm32h750
#if !CONFIG_MACH_STM32H723
if (CONFIG_CLOCK_FREQ > 400000000) { if (CONFIG_CLOCK_FREQ > 400000000) {
enable_pclock((uint32_t)SYSCFG); enable_pclock((uint32_t)SYSCFG);
#ifdef SYSCFG_PWRCR_ODEN
SYSCFG->PWRCR |= SYSCFG_PWRCR_ODEN; SYSCFG->PWRCR |= SYSCFG_PWRCR_ODEN;
#endif
while (!(PWR->D3CR & PWR_D3CR_VOSRDY)) while (!(PWR->D3CR & PWR_D3CR_VOSRDY))
; ;
} }
#endif }
SCB_EnableICache(); SCB_EnableICache();
SCB_EnableDCache(); SCB_EnableDCache();