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flash/stm32l4x: fix flash programming in 64-bit hosts 

stm32l4_work_area struct is shared between the loader and stm32l4x flash driver

'*wp' and '*rp' pointers' size is 4 bytes each since stm32l4x devices have
32-bit processors.

however when used in openocd code, their size depends on the host
  if the host is 32-bit, then the size is 4 bytes each.
  if the host is 64-bit, then the size is 8 bytes each.

to avoid this size difference, change their types depending on the
usage (pointers for the loader, and 32-bit integers in openocd code).

Change-Id: I0a3df4bb4bf872b01cdb9357eb28307868d7d469
Signed-off-by: Tarek BOCHKATI <tarek.bouchkati@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/6556
Tested-by: jenkins
Reviewed-by: Yestin Sun <sunyi0804@gmail.com>
Reviewed-by: Tomas Vanek <vanekt@fbl.cz>
This commit is contained in:
Tarek BOCHKATI 2021-09-09 22:14:36 +01:00 committed by Tomas Vanek
parent f78f9a90a6
commit b61a280860
3 changed files with 23 additions and 3 deletions
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2
contrib/loaders/flash/stm32/stm32l4x.c
View File

@ -5,6 +5,8 @@
* tarek.bouchkati@st.com
*/
#define OPENOCD_CONTRIB_LOADERS_FLASH_STM32_STM32L4X
#include <stdint.h>
#include "../../../../src/flash/nor/stm32l4x.h"

7
src/flash/nor/stm32l4x.c
View File

@ -1405,16 +1405,19 @@ static int stm32l4_write_block(struct flash_bank *bank, const uint8_t *buffer,
armv7m_info.common_magic = ARMV7M_COMMON_MAGIC;
armv7m_info.core_mode = ARM_MODE_THREAD;
init_reg_param(&reg_params[0], "r0", 32, PARAM_IN_OUT); /* buffer start, status (out) */
/* contrib/loaders/flash/stm32/stm32l4x.c:write() arguments */
init_reg_param(&reg_params[0], "r0", 32, PARAM_IN_OUT); /* stm32l4_work_area ptr , status (out) */
init_reg_param(&reg_params[1], "r1", 32, PARAM_OUT); /* buffer end */
init_reg_param(&reg_params[2], "r2", 32, PARAM_OUT); /* target address */
init_reg_param(&reg_params[3], "r3", 32, PARAM_OUT); /* count (of stm32l4_info->data_width) */
init_reg_param(&reg_params[4], "sp", 32, PARAM_OUT); /* write algo stack pointer */
buf_set_u32(reg_params[0].value, 0, 32, source->address);
buf_set_u32(reg_params[1].value, 0, 32, source->address + source->size);
buf_set_u32(reg_params[2].value, 0, 32, address);
buf_set_u32(reg_params[3].value, 0, 32, count);
/* write algo stack pointer */
init_reg_param(&reg_params[4], "sp", 32, PARAM_OUT);
buf_set_u32(reg_params[4].value, 0, 32, source->address +
offsetof(struct stm32l4_work_area, stack) + LDR_STACK_SIZE);

17
src/flash/nor/stm32l4x.h
View File

@ -136,9 +136,24 @@ struct stm32l4_work_area {
} params;
uint8_t stack[LDR_STACK_SIZE];
struct flash_async_algorithm_circbuf {
/* note: stm32l4_work_area struct is shared between the loader
* and stm32l4x flash driver.
*
* '*wp' and '*rp' pointers' size is 4 bytes each since stm32l4x
* devices have 32-bit processors.
* however when used in openocd code, their size depends on the host
* if the host is 32-bit, then the size is 4 bytes each.
* if the host is 64-bit, then the size is 8 bytes each.
* to avoid this size difference, change their types depending on the
* usage (pointers for the loader, and 32-bit integers in openocd code).
*/
#ifdef OPENOCD_CONTRIB_LOADERS_FLASH_STM32_STM32L4X
uint8_t *wp;
uint8_t *rp;
uint8_t *buf;
#else
uint32_t wp;
uint32_t rp;
#endif /* OPENOCD_CONTRIB_LOADERS_FLASH_STM32_STM32L4X */
} fifo;
};