157 lines
3.7 KiB
C
157 lines
3.7 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* Copyright (C) 2012 Altera Corporation <www.altera.com>
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <asm/io.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/misc.h>
|
|
#include <asm/arch/scan_manager.h>
|
|
#include <asm/arch/sdram.h>
|
|
#include <asm/sections.h>
|
|
#include <debug_uart.h>
|
|
#include <fdtdec.h>
|
|
#include <watchdog.h>
|
|
#include <dm/uclass.h>
|
|
|
|
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) */
|
|
return BOOT_DEVICE_NAND;
|
|
case 0x4: /* SD/MMC External Transceiver (1.8V) */
|
|
case 0x5: /* SD/MMC Internal Transceiver (3.0V) */
|
|
return BOOT_DEVICE_MMC1;
|
|
case 0x6: /* QSPI Flash (1.8V) */
|
|
case 0x7: /* QSPI Flash (3.0V) */
|
|
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 board_init_f(ulong dummy)
|
|
{
|
|
const struct cm_config *cm_default_cfg = cm_get_default_config();
|
|
unsigned long reg;
|
|
int ret;
|
|
struct udevice *dev;
|
|
|
|
/*
|
|
* First C code to run. Clear fake OCRAM ECC first as SBE
|
|
* and DBE might triggered during power on
|
|
*/
|
|
reg = readl(&sysmgr_regs->eccgrp_ocram);
|
|
if (reg & SYSMGR_ECC_OCRAM_SERR)
|
|
writel(SYSMGR_ECC_OCRAM_SERR | SYSMGR_ECC_OCRAM_EN,
|
|
&sysmgr_regs->eccgrp_ocram);
|
|
if (reg & SYSMGR_ECC_OCRAM_DERR)
|
|
writel(SYSMGR_ECC_OCRAM_DERR | SYSMGR_ECC_OCRAM_EN,
|
|
&sysmgr_regs->eccgrp_ocram);
|
|
|
|
socfpga_sdram_remap_zero();
|
|
socfpga_pl310_clear();
|
|
|
|
debug("Freezing all I/O banks\n");
|
|
/* freeze all IO banks */
|
|
sys_mgr_frzctrl_freeze_req();
|
|
|
|
/* Put everything into reset but L4WD0. */
|
|
socfpga_per_reset_all();
|
|
|
|
if (!socfpga_is_booting_from_fpga()) {
|
|
/* Put FPGA bridges into reset too. */
|
|
socfpga_bridges_reset(1);
|
|
}
|
|
|
|
socfpga_per_reset(SOCFPGA_RESET(OSC1TIMER0), 0);
|
|
timer_init();
|
|
|
|
debug("Reconfigure Clock Manager\n");
|
|
/* reconfigure the PLLs */
|
|
if (cm_basic_init(cm_default_cfg))
|
|
hang();
|
|
|
|
/* Enable bootrom to configure IOs. */
|
|
sysmgr_config_warmrstcfgio(1);
|
|
|
|
/* configure the IOCSR / IO buffer settings */
|
|
if (scan_mgr_configure_iocsr())
|
|
hang();
|
|
|
|
sysmgr_config_warmrstcfgio(0);
|
|
|
|
/* configure the pin muxing through system manager */
|
|
sysmgr_config_warmrstcfgio(1);
|
|
sysmgr_pinmux_init();
|
|
sysmgr_config_warmrstcfgio(0);
|
|
|
|
/* Set bridges handoff value */
|
|
socfpga_bridges_set_handoff_regs(true, true, true);
|
|
|
|
debug("Unfreezing/Thaw all I/O banks\n");
|
|
/* unfreeze / thaw all IO banks */
|
|
sys_mgr_frzctrl_thaw_req();
|
|
|
|
#ifdef CONFIG_DEBUG_UART
|
|
socfpga_per_reset(SOCFPGA_RESET(UART0), 0);
|
|
debug_uart_init();
|
|
#endif
|
|
|
|
ret = spl_early_init();
|
|
if (ret) {
|
|
debug("spl_early_init() failed: %d\n", ret);
|
|
hang();
|
|
}
|
|
|
|
ret = uclass_get_device(UCLASS_RESET, 0, &dev);
|
|
if (ret)
|
|
debug("Reset init failed: %d\n", ret);
|
|
|
|
#ifdef CONFIG_SPL_NAND_DENALI
|
|
struct socfpga_reset_manager *reset_manager_base =
|
|
(struct socfpga_reset_manager *)SOCFPGA_RSTMGR_ADDRESS;
|
|
|
|
clrbits_le32(&reset_manager_base->per_mod_reset, BIT(4));
|
|
#endif
|
|
|
|
/* enable console uart printing */
|
|
preloader_console_init();
|
|
|
|
ret = uclass_get_device(UCLASS_RAM, 0, &dev);
|
|
if (ret) {
|
|
debug("DRAM init failed: %d\n", ret);
|
|
hang();
|
|
}
|
|
}
|