u-boot/arch/arm/mach-socfpga/spl_agilex.c
Alif Zakuan Yuslaimi 677147c167 arm: socfpga: Update Agilex SPL data save and restore implementation
Enable backup for data section to support warm reset in Agilex SPL as
no SPL image would be reloaded in warm reset.

Signed-off-by: Alif Zakuan Yuslaimi <alif.zakuan.yuslaimi@altera.com>
Reviewed-by: Tien Fong Chee <tien.fong.chee@altera.com>
2025-08-08 22:19:23 +08:00

118 lines
2.5 KiB
C

// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2019 Intel Corporation <www.intel.com>
* Copyright (C) 2025 Altera Corporation <www.altera.com>
*
*/
#include <init.h>
#include <log.h>
#include <asm/global_data.h>
#include <asm/io.h>
#include <asm/utils.h>
#include <hang.h>
#include <image.h>
#include <spl.h>
#include <asm/arch/clock_manager.h>
#include <asm/arch/firewall.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 <watchdog.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;
#if defined(CONFIG_XPL_BUILD) && defined(CONFIG_SPL_RECOVER_DATA_SECTION)
spl_save_restore_data();
#endif
ret = spl_early_init();
if (ret)
hang();
socfpga_get_managers_addr();
/* Ensure watchdog is paused when debugging is happening */
writel(SYSMGR_WDDBG_PAUSE_ALL_CPU,
socfpga_get_sysmgr_addr() + SYSMGR_SOC64_WDDBG);
#ifdef CONFIG_HW_WATCHDOG
/* Enable watchdog before initializing the HW */
socfpga_per_reset(SOCFPGA_RESET(L4WD0), 1);
socfpga_per_reset(SOCFPGA_RESET(L4WD0), 0);
hw_watchdog_init();
#endif
/* ensure all processors are not released prior Linux boot */
writeq(0, CPU_RELEASE_ADDR);
timer_init();
mbox_init();
mbox_hps_stage_notify(HPS_EXECUTION_STATE_FSBL);
sysmgr_pinmux_init();
ret = uclass_get_device(UCLASS_CLK, 0, &dev);
if (ret) {
debug("Clock init failed: %d\n", ret);
hang();
}
preloader_console_init();
print_reset_info();
cm_print_clock_quick_summary();
ret = uclass_get_device_by_name(UCLASS_NOP, "socfpga-system-mgr-firewall", &dev);
if (ret) {
printf("System manager firewall configuration failed: %d\n", ret);
hang();
}
ret = uclass_get_device_by_name(UCLASS_NOP, "socfpga-l3interconnect-firewall", &dev);
if (ret) {
printf("L3 interconnect firewall configuration failed: %d\n", ret);
hang();
}
ret = uclass_get_device(UCLASS_CACHE, 0, &dev);
if (ret) {
debug("CCU init failed: %d\n", ret);
hang();
}
#if CONFIG_IS_ENABLED(ALTERA_SDRAM)
ret = uclass_get_device(UCLASS_RAM, 0, &dev);
if (ret) {
debug("DRAM init failed: %d\n", ret);
hang();
}
#endif
#ifdef CONFIG_CADENCE_QSPI
mbox_qspi_open();
#endif
}