Merge tag 'u-boot-socfpga-next-20250225' of https://source.denx.de/u-boot/custodians/u-boot-socfpga into next

CI: https://source.denx.de/u-boot/custodians/u-boot-socfpga/-/pipelines/24816

Please pull the SoCFPGA changes for next from u-boot-socfpga, containing
boot support for the  Altera SoCFPGA Agilex 5 platform in U-Boot. The
changes include:

1. Board-specific configurations and setup required to enable Agilex 5
   operation in U-Boot.
2. Integration of cache coherency unit (CCU) initialization routine,
   including CCU conguration in DT.
3. Clock, firewall (configured in DT), SMMU, low level initialization
   specific to Agilex 5.
4. Integration of memory initialization routine, including DDR setup.

This patch set has been tested on Agilex 5 devkit with QSPI boot
(UBI/UBIFS) and RAM boot (TFTP & ARM DS debugger).

1 files changed, 110 insertions, 0 deletions

diff --git a/arch/arm/mach-socfpga/spl_agilex5.c b/arch/arm/mach-socfpga/spl_agilex5.c
new file mode 100644
index 00000000000..3451611082d
--- /dev/null
+++ b/arch/arm/mach-socfpga/spl_agilex5.c
@@ -0,0 +1,110 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2024 Intel Corporation <www.intel.com>
+ * Copyright (C) 2025 Altera Corporation <www.altera.com>
+ *
+ */
+
+#include <init.h>
+#include <asm/global_data.h>
+#include <asm/io.h>
+#include <hang.h>
+#include <spl.h>
+#include <asm/arch/base_addr_soc64.h>
+#include <asm/arch/clock_manager.h>
+#include <asm/arch/mailbox_s10.h>
+#include <asm/arch/misc.h>
+#include <asm/arch/reset_manager.h>
+#include <asm/arch/system_manager.h>
+#include <wdt.h>
+#include <dm/uclass.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+u32 reset_flag(void)
+{
+	/* Check rstmgr.stat for warm reset status */
+	u32 status = readl(SOCFPGA_RSTMGR_ADDRESS);
+
+	/* Check whether any L4 watchdogs or SDM had triggered warm reset */
+	u32 warm_reset_mask = RSTMGR_L4WD_MPU_WARMRESET_MASK;
+
+	if (status & warm_reset_mask)
+		return 0;
+
+	return 1;
+}
+
+void board_init_f(ulong dummy)
+{
+	int ret;
+	struct udevice *dev;
+
+	/* Enable Async */
+	asm volatile("msr daifclr, #4");
+
+#ifdef CONFIG_SPL_BUILD
+	spl_save_restore_data();
+#endif
+
+	ret = spl_early_init();
+	if (ret)
+		hang();
+
+	socfpga_get_sys_mgr_addr("sysmgr@10d12000");
+	socfpga_get_managers_addr();
+
+	sysmgr_pinmux_init();
+
+	/* Ensure watchdog is paused when debugging is happening */
+	writel(SYSMGR_WDDBG_PAUSE_ALL_CPU,
+	       socfpga_get_sysmgr_addr() + SYSMGR_SOC64_WDDBG);
+
+	timer_init();
+
+	ret = uclass_get_device(UCLASS_CLK, 0, &dev);
+	if (ret) {
+		debug("Clock init failed: %d\n", ret);
+		hang();
+	}
+
+	/*
+	 * Enable watchdog as early as possible before initializing other
+	 * component. Watchdog need to be enabled after clock driver because
+	 * it will retrieve the clock frequency from clock driver.
+	 */
+	if (CONFIG_IS_ENABLED(WDT))
+		initr_watchdog();
+
+	preloader_console_init();
+	print_reset_info();
+	cm_print_clock_quick_summary();
+
+	ret = uclass_get_device_by_name(UCLASS_NOP, "socfpga-ccu-config", &dev);
+	if (ret) {
+		printf("HPS CCU settings init failed: %d\n", ret);
+		hang();
+	}
+
+	ret = uclass_get_device_by_name(UCLASS_NOP, "socfpga-firewall-config", &dev);
+	if (ret) {
+		printf("HPS firewall settings init failed: %d\n", ret);
+		hang();
+	}
+
+	if (IS_ENABLED(CONFIG_SPL_ALTERA_SDRAM)) {
+		ret = uclass_get_device(UCLASS_RAM, 0, &dev);
+		if (ret) {
+			debug("DRAM init failed: %d\n", ret);
+			hang();
+		}
+	}
+
+	mbox_init();
+
+	if (IS_ENABLED(CONFIG_CADENCE_QSPI))
+		mbox_qspi_open();
+
+	/* Enable non secure access to ocram */
+	clrbits_le32(SOCFPGA_OCRAM_FIREWALL_ADDRESS + 0x18, BIT(0));
+}