mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-07-11 05:36:17 +09:00
f9edeb32a9
The UART reset handling is now done via reset framework using the SoCFPGA reset driver. The UART console assignment is done using the DM and console framework. Nuke all this comlexity, since it is just duplicating the same functionality, badly. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Chin Liang See <chin.liang.see@intel.com> Cc: Dinh Nguyen <dinguyen@kernel.org>
108 lines
2.5 KiB
C
108 lines
2.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2012 Altera Corporation <www.altera.com>
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*/
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#include <common.h>
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#include <asm/io.h>
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#include <asm/pl310.h>
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#include <asm/u-boot.h>
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#include <asm/utils.h>
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#include <image.h>
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#include <asm/arch/reset_manager.h>
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#include <spl.h>
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#include <asm/arch/system_manager.h>
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#include <asm/arch/freeze_controller.h>
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#include <asm/arch/clock_manager.h>
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#include <asm/arch/scan_manager.h>
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#include <asm/arch/sdram.h>
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#include <asm/arch/scu.h>
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#include <asm/arch/misc.h>
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#include <asm/arch/nic301.h>
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#include <asm/sections.h>
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#include <fdtdec.h>
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#include <watchdog.h>
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#include <asm/arch/pinmux.h>
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DECLARE_GLOBAL_DATA_PTR;
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static const struct socfpga_system_manager *sysmgr_regs =
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(struct socfpga_system_manager *)SOCFPGA_SYSMGR_ADDRESS;
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u32 spl_boot_device(void)
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{
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const u32 bsel = readl(&sysmgr_regs->bootinfo);
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switch (SYSMGR_GET_BOOTINFO_BSEL(bsel)) {
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case 0x1: /* FPGA (HPS2FPGA Bridge) */
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return BOOT_DEVICE_RAM;
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case 0x2: /* NAND Flash (1.8V) */
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case 0x3: /* NAND Flash (3.0V) */
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socfpga_per_reset(SOCFPGA_RESET(NAND), 0);
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return BOOT_DEVICE_NAND;
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case 0x4: /* SD/MMC External Transceiver (1.8V) */
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case 0x5: /* SD/MMC Internal Transceiver (3.0V) */
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socfpga_per_reset(SOCFPGA_RESET(SDMMC), 0);
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socfpga_per_reset(SOCFPGA_RESET(DMA), 0);
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return BOOT_DEVICE_MMC1;
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case 0x6: /* QSPI Flash (1.8V) */
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case 0x7: /* QSPI Flash (3.0V) */
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socfpga_per_reset(SOCFPGA_RESET(QSPI), 0);
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return BOOT_DEVICE_SPI;
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default:
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printf("Invalid boot device (bsel=%08x)!\n", bsel);
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hang();
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}
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}
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#ifdef CONFIG_SPL_MMC_SUPPORT
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u32 spl_boot_mode(const u32 boot_device)
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{
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#if defined(CONFIG_SPL_FAT_SUPPORT) || defined(CONFIG_SPL_EXT_SUPPORT)
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return MMCSD_MODE_FS;
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#else
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return MMCSD_MODE_RAW;
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#endif
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}
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#endif
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void spl_board_init(void)
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{
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/* configuring the clock based on handoff */
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cm_basic_init(gd->fdt_blob);
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WATCHDOG_RESET();
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config_dedicated_pins(gd->fdt_blob);
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WATCHDOG_RESET();
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/* enable console uart printing */
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preloader_console_init();
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WATCHDOG_RESET();
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/* Add device descriptor to FPGA device table */
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socfpga_fpga_add();
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}
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void board_init_f(ulong dummy)
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{
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/*
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* Configure Clock Manager to use intosc clock instead external osc to
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* ensure success watchdog operation. We do it as early as possible.
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*/
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cm_use_intosc();
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socfpga_watchdog_disable();
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arch_early_init_r();
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#ifdef CONFIG_HW_WATCHDOG
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/* release osc1 watchdog timer 0 from reset */
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socfpga_reset_deassert_osc1wd0();
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/* reconfigure and enable the watchdog */
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hw_watchdog_init();
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WATCHDOG_RESET();
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#endif /* CONFIG_HW_WATCHDOG */
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}
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