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flash/stm32l4x: do not use magic number for dual bank option bits 

Change-Id: I27211e7d44b48f65546e31710ec6ae129acb416f
Signed-off-by: Tarek BOCHKATI <tarek.bouchkati@gmail.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/6537
Tested-by: jenkins
Reviewed-by: Oleksij Rempel <linux@rempel-privat.de>
This commit is contained in:
Tarek BOCHKATI 2021-08-29 21:48:49 +01:00 committed by Oleksij Rempel
parent 5070425d6a
commit e63297045b
2 changed files with 25 additions and 17 deletions
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34
src/flash/nor/stm32l4x.c
View File

@ -1843,8 +1843,8 @@ static int stm32l4_probe(struct flash_bank *bank)
num_pages = flash_size_kb / page_size_kb;
stm32l4_info->bank1_sectors = num_pages;
/* check DUAL_BANK bit[21] if the flash is less than 1M */
if (is_max_flash_size || (stm32l4_info->optr & BIT(21))) {
/* check DUAL_BANK option bit if the flash is less than 1M */
if (is_max_flash_size || (stm32l4_info->optr & FLASH_L4_DUAL_BANK)) {
stm32l4_info->dual_bank_mode = true;
stm32l4_info->bank1_sectors = num_pages / 2;
}
@ -1864,14 +1864,14 @@ static int stm32l4_probe(struct flash_bank *bank)
stm32l4_info->bank1_sectors = num_pages;
break;
case DEVID_STM32G0B_G0CXX:
/* single/dual bank depending on bit(21) */
/* single/dual bank depending on DUAL_BANK option bit */
page_size_kb = 2;
num_pages = flash_size_kb / page_size_kb;
stm32l4_info->bank1_sectors = num_pages;
stm32l4_info->cr_bker_mask = FLASH_BKER_G0;
/* check DUAL_BANK bit */
if (stm32l4_info->optr & BIT(21)) {
if (stm32l4_info->optr & FLASH_G0_DUAL_BANK) {
stm32l4_info->sr_bsy_mask = FLASH_BSY | FLASH_BSY2;
stm32l4_info->dual_bank_mode = true;
stm32l4_info->bank1_sectors = num_pages / 2;
@ -1885,7 +1885,7 @@ static int stm32l4_probe(struct flash_bank *bank)
page_size_kb = 4;
num_pages = flash_size_kb / page_size_kb;
stm32l4_info->bank1_sectors = num_pages;
if (stm32l4_info->optr & BIT(22)) {
if (stm32l4_info->optr & FLASH_G4_DUAL_BANK) {
stm32l4_info->dual_bank_mode = true;
page_size_kb = 2;
num_pages = flash_size_kb / page_size_kb;
@ -1899,17 +1899,17 @@ static int stm32l4_probe(struct flash_bank *bank)
case DEVID_STM32L4R_L4SXX:
case DEVID_STM32L4P_L4QXX:
/* STM32L4R/S can be single/dual bank:
* if size = 2M check DBANK bit(22)
* if size = 1M check DB1M bit(21)
* if size = 2M check DBANK bit
* if size = 1M check DB1M bit
* STM32L4P/Q can be single/dual bank
* if size = 1M check DBANK bit(22)
* if size = 512K check DB512K bit(21)
* if size = 1M check DBANK bit
* if size = 512K check DB512K bit (same as DB1M bit)
*/
page_size_kb = 8;
num_pages = flash_size_kb / page_size_kb;
stm32l4_info->bank1_sectors = num_pages;
if ((is_max_flash_size && (stm32l4_info->optr & BIT(22))) ||
(!is_max_flash_size && (stm32l4_info->optr & BIT(21)))) {
if ((is_max_flash_size && (stm32l4_info->optr & FLASH_L4R_DBANK)) ||
(!is_max_flash_size && (stm32l4_info->optr & FLASH_LRR_DB1M))) {
stm32l4_info->dual_bank_mode = true;
page_size_kb = 4;
num_pages = flash_size_kb / page_size_kb;
@ -1918,14 +1918,14 @@ static int stm32l4_probe(struct flash_bank *bank)
break;
case DEVID_STM32L55_L56XX:
/* STM32L55/L56xx can be single/dual bank:
* if size = 512K check DBANK bit(22)
* if size = 256K check DB256K bit(21)
* if size = 512K check DBANK bit
* if size = 256K check DB256K bit
*/
page_size_kb = 4;
num_pages = flash_size_kb / page_size_kb;
stm32l4_info->bank1_sectors = num_pages;
if ((is_max_flash_size && (stm32l4_info->optr & BIT(22))) ||
(!is_max_flash_size && (stm32l4_info->optr & BIT(21)))) {
if ((is_max_flash_size && (stm32l4_info->optr & FLASH_L5_DBANK)) ||
(!is_max_flash_size && (stm32l4_info->optr & FLASH_L5_DB256))) {
stm32l4_info->dual_bank_mode = true;
page_size_kb = 2;
num_pages = flash_size_kb / page_size_kb;
@ -1934,12 +1934,12 @@ static int stm32l4_probe(struct flash_bank *bank)
break;
case DEVID_STM32U57_U58XX:
/* if flash size is max (2M) the device is always dual bank
* otherwise check DUALBANK bit(21)
* otherwise check DUALBANK
*/
page_size_kb = 8;
num_pages = flash_size_kb / page_size_kb;
stm32l4_info->bank1_sectors = num_pages;
if (is_max_flash_size || (stm32l4_info->optr & BIT(21))) {
if (is_max_flash_size || (stm32l4_info->optr & FLASH_U5_DUALBANK)) {
stm32l4_info->dual_bank_mode = true;
stm32l4_info->bank1_sectors = num_pages / 2;
}

8
src/flash/nor/stm32l4x.h
View File

@ -70,6 +70,14 @@
/* FLASH_OPTR register bits */
#define FLASH_RDP_MASK 0xFF
#define FLASH_G0_DUAL_BANK BIT(21)
#define FLASH_G4_DUAL_BANK BIT(22)
#define FLASH_L4_DUAL_BANK BIT(21)
#define FLASH_L4R_DBANK BIT(22)
#define FLASH_LRR_DB1M BIT(21)
#define FLASH_L5_DBANK BIT(22)
#define FLASH_L5_DB256 BIT(21)
#define FLASH_U5_DUALBANK BIT(21)
#define FLASH_TZEN BIT(31)
/* FLASH secure block based bank 1/2 register offsets */