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Fixed bug #1258. 

git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@16198 27425a3e-05d8-49a3-a47f-9c15f0e5edd8
This commit is contained in:
Giovanni Di Sirio 2023-04-02 09:46:03 +00:00
parent b3555769e7
commit 4f05718d98
2 changed files with 11 additions and 2 deletions
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11
os/hal/ports/STM32/STM32H7xx/hal_lld.c
View File

@ -28,6 +28,10 @@
/* Driver local definitions. */ /* Driver local definitions. */
/*===========================================================================*/ /*===========================================================================*/
#define RCC_AHB1RSTR_DONOTTOUCH_Pos (31U)
#define RCC_AHB1RSTR_DONOTTOUCH_Msk (0x1UL << RCC_AHB1RSTR_DONOTTOUCH_Pos)
#define RCC_AHB1RSTR_DONOTTOUCH RCC_AHB1RSTR_DONOTTOUCH_Msk
/*===========================================================================*/ /*===========================================================================*/
/* Driver exported variables. */ /* Driver exported variables. */
/*===========================================================================*/ /*===========================================================================*/
@ -149,8 +153,11 @@ void hal_lld_init(void) {
/* Reset of all peripherals. AHB3 is not reset entirely because FMC could /* Reset of all peripherals. AHB3 is not reset entirely because FMC could
have been initialized in the board initialization file (board.c). have been initialized in the board initialization file (board.c).
Note, GPIOs are not reset because initialized before this point in Note, GPIOs are not reset because initialized before this point in
board files.*/ board files.
__rccResetAHB1(~0); Note that there is an undocumented bit in AHB1, presumably the cache
reset, which must not be touched because the cache is write-back and
latest writes could be lost.*/
__rccResetAHB1(~RCC_AHB1RSTR_DONOTTOUCH);
__rccResetAHB2(~0); __rccResetAHB2(~0);
__rccResetAHB3(~(RCC_AHB3RSTR_FMCRST | __rccResetAHB3(~(RCC_AHB3RSTR_FMCRST |
#if defined(STM32_QSPI_NO_RESET) #if defined(STM32_QSPI_NO_RESET)

2
readme.txt
View File

@ -110,6 +110,8 @@
instead of a simple size. instead of a simple size.
- NEW: RT and NIL upgraded to support the enhanced OSLIB. - NEW: RT and NIL upgraded to support the enhanced OSLIB.
- NEW: Memory areas/pointers checker functions added to OSLIB. - NEW: Memory areas/pointers checker functions added to OSLIB.
- FIX: Fixed unwanted reset of cache on STM32H7xx (bug #1258)
(backported to 20.3.5)(backported to 21.11.4).
- FIX: Fixed invalid HSIDIV in STM32Ggxx clocks initialization (bug #1257) - FIX: Fixed invalid HSIDIV in STM32Ggxx clocks initialization (bug #1257)
(backported to 21.11.4). (backported to 21.11.4).
- FIX: Fixed incorrect RTC initialization on STM32G4/L4/L4+ (bug #1256) - FIX: Fixed incorrect RTC initialization on STM32G4/L4/L4+ (bug #1256)