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target/nrf51: Add command to enable flash protection 

Add command `mon protect_flash`  to enable flash read/write protection
This commit is contained in:
Giovanni Santana 2022-07-15 12:13:28 -03:00 committed by Rachel Mant
parent 7a52aa7645
commit 6ae846ae24
1 changed files with 29 additions and 0 deletions
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29
src/target/nrf51.c
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@ -33,6 +33,7 @@ static int nrf51_flash_write(struct target_flash *f,
static bool nrf51_mass_erase(target *t);
static bool nrf51_cmd_erase_uicr(target *t, int argc, const char **argv);
static bool nrf51_cmd_protect_flash(target *t, int argc, const char **argv);
static bool nrf51_cmd_read_hwid(target *t, int argc, const char **argv);
static bool nrf51_cmd_read_fwid(target *t, int argc, const char **argv);
static bool nrf51_cmd_read_deviceid(target *t, int argc, const char **argv);
@ -43,6 +44,7 @@ static bool nrf51_cmd_read(target *t, int argc, const char **argv);
const struct command_s nrf51_cmd_list[] = {
{"erase_uicr", (cmd_handler)nrf51_cmd_erase_uicr, "Erase UICR registers"},
{"protect_flash", (cmd_handler)nrf51_cmd_protect_flash, "Enable flash read/write protection"},
{"read", (cmd_handler)nrf51_cmd_read, "Read device parameters"},
{NULL, NULL, NULL}
};
@ -93,6 +95,9 @@ const struct command_s nrf51_read_cmd_list[] = {
/* User Information Configuration Registers (UICR) */
#define NRF51_UICR 0x10001000
/* Flash R/W Protection Register */
#define NRF51_APPROTECT 0x10001208
#define NRF51_PAGE_SIZE 1024
#define NRF52_PAGE_SIZE 4096
@ -273,6 +278,30 @@ static bool nrf51_cmd_erase_uicr(target *t, int argc, const char **argv)
return true;
}
static bool nrf51_cmd_protect_flash(target *t, int argc, const char **argv)
{
(void)argc;
(void)argv;
tc_printf(t, "protect flash..\n");
/* Enable write */
target_mem_write32(t, NRF51_NVMC_CONFIG, NRF51_NVMC_CONFIG_WEN);
/* Poll for NVMC_READY */
while (target_mem_read32(t, NRF51_NVMC_READY) == 0)
if(target_check_error(t))
return false;
target_mem_write32(t, NRF51_APPROTECT, 0xFFFFFF00);
/* Poll for NVMC_READY */
while (target_mem_read32(t, NRF51_NVMC_READY) == 0)
if(target_check_error(t))
return false;
return true;
}
static bool nrf51_cmd_read_hwid(target *t, int argc, const char **argv)
{
(void)argc;