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spiFlash: handle case where TB is not configurable

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This commit is contained in:
Gwenhael Goavec-Merou
2022-03-29 07:49:08 +02:00
parent 9c51a0610f
commit f9eb32c778
1 changed files with 8 additions and 1 deletions
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src/spiFlash.cpp
+8 -1
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@@ -646,7 +646,7 @@ int SPIFlash::enable_protection(uint32_t length)
* check if tb is already set and if not warn
* current (temporary) policy: do nothing
*/
if (_flash_model->tb_otp) {
if (_flash_model->tb_otp && _flash_model->tb_register != NONER) {
uint8_t tb = get_tb();
/* check if TB is set */
if (tb == 0) {
@@ -683,6 +683,10 @@ int SPIFlash::enable_protection(uint32_t length)
/* update status register */
int ret = enable_protection(bp);
/* No TB available -> nothing to do */
if (_flash_model->tb_register == NONER)
return ret;
/* tb is in different register */
if (_flash_model->tb_register != STATR) {
if (ret == -1) // check if enable_protection has failed
@@ -730,6 +734,9 @@ int8_t SPIFlash::get_tb()
case CONFR: // function register
_spi->spi_put(FLASH_RDCR, NULL, &status, 1);
break;
case NONER: // no TB bit
return 0;
break;
default: // unknown
printError("Unknown Top/Bottom register");
return -1;