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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2012-2019 Altera Corporation <www.altera.com>
*/
#include <common.h>
#include <asm/io.h>
#include <asm/pl310.h>
#include <asm/u-boot.h>
#include <asm/utils.h>
#include <image.h>
#include <asm/arch/reset_manager.h>
#include <spl.h>
#include <asm/arch/system_manager.h>
#include <asm/arch/freeze_controller.h>
#include <asm/arch/clock_manager.h>
#include <asm/arch/scan_manager.h>
#include <asm/arch/sdram.h>
#include <asm/arch/scu.h>
#include <asm/arch/misc.h>
#include <asm/arch/nic301.h>
#include <asm/sections.h>
#include <fdtdec.h>
#include <watchdog.h>
#include <asm/arch/pinmux.h>
#include <asm/arch/fpga_manager.h>
#include <mmc.h>
#include <memalign.h>
#define FPGA_BUFSIZ 16 * 1024
DECLARE_GLOBAL_DATA_PTR;
static const struct socfpga_system_manager *sysmgr_regs =
(struct socfpga_system_manager *)SOCFPGA_SYSMGR_ADDRESS;
u32 spl_boot_device(void)
{
const u32 bsel = readl(&sysmgr_regs->bootinfo);
switch (SYSMGR_GET_BOOTINFO_BSEL(bsel)) {
case 0x1: /* FPGA (HPS2FPGA Bridge) */
return BOOT_DEVICE_RAM;
case 0x2: /* NAND Flash (1.8V) */
case 0x3: /* NAND Flash (3.0V) */
socfpga_per_reset(SOCFPGA_RESET(NAND), 0);
return BOOT_DEVICE_NAND;
case 0x4: /* SD/MMC External Transceiver (1.8V) */
case 0x5: /* SD/MMC Internal Transceiver (3.0V) */
socfpga_per_reset(SOCFPGA_RESET(SDMMC), 0);
socfpga_per_reset(SOCFPGA_RESET(DMA), 0);
return BOOT_DEVICE_MMC1;
case 0x6: /* QSPI Flash (1.8V) */
case 0x7: /* QSPI Flash (3.0V) */
socfpga_per_reset(SOCFPGA_RESET(QSPI), 0);
return BOOT_DEVICE_SPI;
default:
printf("Invalid boot device (bsel=%08x)!\n", bsel);
hang();
}
}
#ifdef CONFIG_SPL_MMC_SUPPORT
u32 spl_boot_mode(const u32 boot_device)
{
#if defined(CONFIG_SPL_FS_FAT) || defined(CONFIG_SPL_FS_EXT4)
return MMCSD_MODE_FS;
#else
return MMCSD_MODE_RAW;
#endif
}
#endif
void spl_board_init(void)
{
ALLOC_CACHE_ALIGN_BUFFER(char, buf, FPGA_BUFSIZ);
/* enable console uart printing */
preloader_console_init();
WATCHDOG_RESET();
arch_early_init_r();
/* If the full FPGA is already loaded, ie.from EPCQ, config fpga pins */
if (is_fpgamgr_user_mode()) {
int ret = config_pins(gd->fdt_blob, "shared");
if (ret)
return;
ret = config_pins(gd->fdt_blob, "fpga");
if (ret)
return;
} else if (!is_fpgamgr_early_user_mode()) {
/* Program IOSSM(early IO release) or full FPGA */
fpgamgr_program(buf, FPGA_BUFSIZ, 0);
}
/* If the IOSSM/full FPGA is already loaded, start DDR */
if (is_fpgamgr_early_user_mode() || is_fpgamgr_user_mode())
ddr_calibration_sequence();
if (!is_fpgamgr_user_mode())
fpgamgr_program(buf, FPGA_BUFSIZ, 0);
}
void board_init_f(ulong dummy)
{
dcache_disable();
socfpga_init_security_policies();
socfpga_sdram_remap_zero();
/* Assert reset to all except L4WD0 and L4TIMER0 */
socfpga_per_reset_all();
socfpga_watchdog_disable();
spl_early_init();
/* Configure the clock based on handoff */
cm_basic_init(gd->fdt_blob);
#ifdef CONFIG_HW_WATCHDOG
/* release osc1 watchdog timer 0 from reset */
socfpga_reset_deassert_osc1wd0();
/* reconfigure and enable the watchdog */
hw_watchdog_init();
WATCHDOG_RESET();
#endif /* CONFIG_HW_WATCHDOG */
config_dedicated_pins(gd->fdt_blob);
WATCHDOG_RESET();
}
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