[nrf fromtree] drivers: hwinfo: Add support for generating device id …

…from device addr

In some ICs (including nRF54H20) the DEVICEID register is not part of
FICR, and thus it is not accessible to applications. Use instead the
device address, along with a couple of bytes from ER and IR, to
generated a unique device id.

At the same time update the pointer to the hal_nordic repo to pull in
zephyrproject-rtos/hal_nordic#196.

Signed-off-by: Carles Cufi <[email protected]>
(cherry picked from commit ebd31d3)

drivers/hwinfo/Kconfig

@@ -67,7 +67,7 @@ config HWINFO_NRF
 	bool "NRF device ID"
 	default y
 	depends on SOC_FAMILY_NORDIC_NRF
-	depends on NRF_SOC_SECURE_SUPPORTED
+	depends on SOC_SERIES_NRF54HX || NRF_SOC_SECURE_SUPPORTED
 	help
 	  Enable Nordic NRF hwinfo driver.
 

drivers/hwinfo/hwinfo_nrf.c

@@ -8,7 +8,7 @@
 #include <zephyr/drivers/hwinfo.h>
 #include <string.h>
 #include <zephyr/sys/byteorder.h>
-#ifndef CONFIG_BOARD_QEMU_CORTEX_M0
+#if !defined(CONFIG_SOC_SERIES_NRF54HX) && !defined(CONFIG_BOARD_QEMU_CORTEX_M0)
 #include <helpers/nrfx_reset_reason.h>
 #endif
 
@@ -25,17 +25,34 @@ struct nrf_uid {
 ssize_t z_impl_hwinfo_get_device_id(uint8_t *buffer, size_t length)
 {
 	struct nrf_uid dev_id;
-	uint32_t deviceid[2];
+	uint32_t buf[2];
 
+#if NRF_FICR_HAS_DEVICE_ID || NRF_FICR_HAS_INFO_DEVICE_ID
+	/* DEVICEID is accessible, use this */
 #if defined(CONFIG_TRUSTED_EXECUTION_NONSECURE) && defined(NRF_FICR_S)
-	soc_secure_read_deviceid(deviceid);
+	soc_secure_read_deviceid(buf);
 #else
-	deviceid[0] = nrf_ficr_deviceid_get(NRF_FICR, 0);
-	deviceid[1] = nrf_ficr_deviceid_get(NRF_FICR, 1);
+	buf[0] = nrf_ficr_deviceid_get(NRF_FICR, 0);
+	buf[1] = nrf_ficr_deviceid_get(NRF_FICR, 1);
+#endif
+#elif NRF_FICR_HAS_DEVICE_ADDR || NRF_FICR_HAS_BLE_ADDR
+	/* DEVICEID is not accessible, use device/ble address instead.
+	 * Assume that it is always accessible from the non-secure image.
+	 */
+	buf[0] = nrf_ficr_deviceaddr_get(NRF_FICR, 0);
+	buf[1] = nrf_ficr_deviceaddr_get(NRF_FICR, 1);
+
+	/* Assume that ER and IR are available whenever deviceaddr is.
+	 * Use the LSBytes from ER and IR to complete the device id.
+	 */
+	buf[1] |= (nrf_ficr_er_get(NRF_FICR, 0) & 0xFF) << 16;
+	buf[1] |= (nrf_ficr_ir_get(NRF_FICR, 0) & 0xFF) << 24;
+#else
+#error "No suitable source for hwinfo device_id generation"
 #endif
 
-	dev_id.id[0] = sys_cpu_to_be32(deviceid[1]);
-	dev_id.id[1] = sys_cpu_to_be32(deviceid[0]);
+	dev_id.id[0] = sys_cpu_to_be32(buf[1]);
+	dev_id.id[1] = sys_cpu_to_be32(buf[0]);
 
 	if (length > sizeof(dev_id.id)) {
 		length = sizeof(dev_id.id);
@@ -46,7 +63,7 @@ ssize_t z_impl_hwinfo_get_device_id(uint8_t *buffer, size_t length)
 	return length;
 }
 
-#ifndef CONFIG_BOARD_QEMU_CORTEX_M0
+#if !defined(CONFIG_SOC_SERIES_NRF54HX) && !defined(CONFIG_BOARD_QEMU_CORTEX_M0)
 int z_impl_hwinfo_get_reset_cause(uint32_t *cause)
 {
 	uint32_t flags = 0;