feat(core/prodtest): add pm-new-soc-estimate command.

[no changelog]

core/embed/projects/prodtest/README.md

@@ -712,6 +712,16 @@ optiga-counter-read
 OK 0E
 ```
 
+### pm-new-soc-estimate
+Erase power manager recovery data from the backup RAM and immediately reboot the device to run new battery SoC estimate.
+
+Example:
+```
+pm-new-soc-estimate
+# Erasing backup RAM and rebooting...
+OK
+```
+
 ### pm-set-soc-limit
 Sets the battery state of charge (SOC) limit. The SOC limit is a percentage value between 10 and 100.
 

core/embed/projects/prodtest/cmd/prodtest_power_manager.c

@@ -27,6 +27,8 @@
 #include <rtl/mini_printf.h>
 #include <rtl/unit_test.h>
 #include <rust_ui_prodtest.h>
+#include <sys/backup_ram.h>
+#include <sys/bootutils.h>
 #include <sys/power_manager.h>
 #include <sys/rtc.h>
 #include <sys/systick.h>
@@ -410,6 +412,30 @@ void prodtest_pm_set_soc_limit(cli_t* cli) {
   cli_ok(cli, "");
 }
 
+void prodtest_pm_new_soc_estimate(cli_t* cli) {
+  if (cli_arg_count(cli) > 0) {
+    cli_error_arg_count(cli);
+    return;
+  }
+
+  // Run new battery SoC initialization by erasing the recovery data from
+  // backup RAM followed by forced imediate reboot.
+
+  cli_trace(cli, "Erasing backup RAM and rebooting...");
+  cli_ok(cli, "");
+  systick_delay_ms(100);
+
+  // Deinitialize power manager so the monitor stop feeding the recovery data
+  // to backup RAM.
+  pm_deinit();
+
+  // Erase PM recovery data from backup RAM
+  backup_ram_erase_item(BACKUP_RAM_KEY_PM_RECOVERY);
+  reboot_device();
+
+  cli_error(cli, CLI_ERROR, "failed to reboot");
+}
+
 // clang-format off
 
 PRODTEST_CLI_CMD(
@@ -475,4 +501,11 @@ PRODTEST_CLI_CMD(
   .args = "<limit>"
 );
 
+PRODTEST_CLI_CMD(
+  .name = "pm-new-soc-estimate",
+  .func = prodtest_pm_new_soc_estimate,
+  .info = "Run new battery SoC initialization",
+  .args = ""
+);
+
 #endif /* USE_POWER_MANAGER */

core/embed/sys/backup_ram/inc/sys/backup_ram.h

@@ -54,6 +54,17 @@ void backup_ram_deinit(void);
 
 bool backup_ram_erase(void);
 
+/**
+ * @brief Erases a single item in backup RAM by its key.
+ *
+ * If the item with the given key does not exist, the function does nothing.
+ *
+ * @param key Key of the item to erase
+ *
+ * @return true if the operation was successful, false otherwise.
+ */
+bool backup_ram_erase_item(uint16_t key);
+
 #define BACKUP_RAM_INVALID_KEY 0xFFFF
 
 /**

core/embed/sys/backup_ram/stm32u5/backup_ram.c

@@ -354,6 +354,21 @@ uint16_t backup_ram_search(uint16_t min_key) {
   return key;
 }
 
+bool backup_ram_erase_item(uint16_t key) {
+  backup_ram_driver_t* drv = &g_backup_ram_driver;
+
+  if (!drv->initialized) {
+    return false;
+  }
+
+  // Writing NULL data will just remove the item with the given key
+  irq_key_t irq_key = irq_lock();
+  bool status = backup_ram_write(key, NULL, 0);
+  irq_unlock(irq_key);
+
+  return status;
+}
+
 bool backup_ram_read(uint16_t key, void* buffer, size_t buffer_size,
                      size_t* data_size) {
   bool success = false;