arm: socfpga: agilex: Enable system manager driver for Agilex

The base address of system manager can be retrieved
using DT framework through the system manager driver.

Enable system manager support for Agilex by probing the
system manager driver to initialize during SPL boot up.

Signed-off-by: Boon Khai Ng <boon.khai.ng@altera.com>
Signed-off-by: Alif Zakuan Yuslaimi <alif.zakuan.yuslaimi@altera.com>
Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>

diff --git a/MAINTAINERS b/MAINTAINERS
index fdce820..a04b93a 100644 (file)
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -156,6 +156,7 @@ S:  Maintained
 T:     git https://source.denx.de/u-boot/custodians/u-boot-socfpga.git
 F:     arch/arm/dts/socfpga_*
 F:     arch/arm/mach-socfpga/
+F:     board/intel/agilex-socdk/
 F:     configs/socfpga_*
 F:     drivers/ddr/altera/
 F:     drivers/power/domain/altr-pmgr-agilex5.c

diff --git a/arch/arm/dts/socfpga_agilex.dtsi b/arch/arm/dts/socfpga_agilex.dtsi
index be5100a..84bc40d 100644 (file)
--- a/arch/arm/dts/socfpga_agilex.dtsi
+++ b/arch/arm/dts/socfpga_agilex.dtsi
@@ -625,4 +625,8 @@
                        };
                };
        };
+
+       aliases {
+               sysmgr = &sysmgr;
+       };
 };

diff --git a/arch/arm/mach-socfpga/Makefile b/arch/arm/mach-socfpga/Makefile
index c43fdee..7f53c24 100644 (file)
--- a/arch/arm/mach-socfpga/Makefile
+++ b/arch/arm/mach-socfpga/Makefile
@@ -54,6 +54,7 @@ obj-y += timer_s10.o
 obj-$(CONFIG_SOCFPGA_SECURE_VAB_AUTH)  += vab.o
 obj-y  += wrap_handoff_soc64.o
 obj-y  += wrap_pll_config_soc64.o
+obj-y  += altera-sysmgr.o
 endif
 
 ifdef CONFIG_TARGET_SOCFPGA_AGILEX5

diff --git a/arch/arm/mach-socfpga/spl_agilex.c b/arch/arm/mach-socfpga/spl_agilex.c
index c16519f..351848f 100644 (file)
--- a/arch/arm/mach-socfpga/spl_agilex.c
+++ b/arch/arm/mach-socfpga/spl_agilex.c
@@ -54,6 +54,7 @@ void board_init_f(ulong dummy)
        if (ret)
                hang();
 
+       socfpga_get_sys_mgr_addr();
        socfpga_get_managers_addr();
 
        /* Ensure watchdog is paused when debugging is happening */

diff --git a/board/intel/agilex-socdk/Makefile b/board/intel/agilex-socdk/Makefile
new file mode 100644 (file)
index 0000000..306a8cf
--- /dev/null
+++ b/board/intel/agilex-socdk/Makefile
@@ -0,0 +1,7 @@
+#
+# Copyright (C) 2025 Altera Corporation <www.altera.com>
+#
+# SPDX-License-Identifier:     GPL-2.0
+#
+
+obj-y  := socfpga.o

diff --git a/board/intel/agilex-socdk/socfpga.c b/board/intel/agilex-socdk/socfpga.c
new file mode 100644 (file)
index 0000000..60c8704
--- /dev/null
+++ b/board/intel/agilex-socdk/socfpga.c
@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2025 Altera Corporation <www.altera.com>
+ */
+
+#include <asm/arch/misc.h>
+
+int board_early_init_f(void)
+{
+       socfpga_get_sys_mgr_addr();
+       return 0;
+}