[RFC PATCH v1 08/20] board: raspberrypi: rpi: save board_type to the global_data

[Oleksii Moisieiev]

Save board_type retrieved from the BCM board firmware to the global
data. This information can be accessed by using gd_board_type() call to
determine the type of currently used board.

Signed-off-by: Oleksii Moisieiev <oleksii_moisieiev at epam.com>
Reviewed-by: Volodymyr Babchuk <volodymyr_babchuk at epam.com>
---

 board/raspberrypi/rpi/rpi.c        |  5 +++++
 include/broadcom/bcm_board_types.h | 25 +++++++++++++++++++++++++
 2 files changed, 30 insertions(+)
 create mode 100644 include/broadcom/bcm_board_types.h

diff --git a/board/raspberrypi/rpi/rpi.c b/board/raspberrypi/rpi/rpi.c
index 2851ebc985..32d67eb7f4 100644
--- a/board/raspberrypi/rpi/rpi.c
+++ b/board/raspberrypi/rpi/rpi.c
@@ -19,6 +19,8 @@
 #include <asm/arch/sdhci.h>
 #include <asm/global_data.h>
 #include <dm/platform_data/serial_bcm283x_mu.h>
+#include <broadcom/bcm_board_types.h>
+
 #ifdef CONFIG_ARM64
 #include <asm/armv8/mmu.h>
 #endif
@@ -489,6 +491,9 @@ static void get_board_revision(void)
 		model = &models[rev_type];
 	}
 
+	if (IS_ENABLED(CONFIG_BOARD_TYPES))
+		gd->board_type = rev_type;
+
 	printf("RPI %s (0x%x)\n", model->name, revision);
 }
 
diff --git a/include/broadcom/bcm_board_types.h b/include/broadcom/bcm_board_types.h
new file mode 100644
index 0000000000..69db528874
--- /dev/null
+++ b/include/broadcom/bcm_board_types.h
@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * This header defines BCM board types.
+ *
+ * Copyright (c) 2024 EPAM Systems
+ *
+ */
+#ifndef _BCM_BOARD_TYPES_H_
+#define _BCM_BOARD_TYPES_H_
+
+/*
+ * TODO: This enumerator defines the main BCM types.
+ * These types are defined by the BCM firmware and requested
+ * via mbox. Currently only one board type was added.
+ * This is needed to determine whether current board is bcm2712
+ * or other to control the behaviour of the following drivers:
+ * macb and pcie_brcmstb. New board enumerators can be added here
+ * if needed.
+ * See https://www.raspberrypi.com/documentation/computers/raspberry-pi.html#raspberry-pi-revision-codes
+ */
+typedef enum {
+	BCM2712_RPI_5_B_NEW = 0x17,
+} bcm_board_type_t;
+
+#endif /* _BCM_BOARD_TYPES_H_ */
-- 
2.34.1