mirror of
https://github.com/brain-hackers/u-boot-brain
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cd08513b05
Enable saving variables to MMC(FAT), NAND, SPI based on primary bootmode. If bootmode is JTAG, dont save env anywhere(NOWHERE). Since most of the flashes on zynq evaluation boards are 16MB in size, set default ENV_OFFSET to 15MB(0xE00000). Signed-off-by: Ashok Reddy Soma <ashok.reddy.soma@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com>
154 lines
3.0 KiB
C
154 lines
3.0 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2012 Michal Simek <monstr@monstr.eu>
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* (C) Copyright 2013 - 2018 Xilinx, Inc.
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*/
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#include <common.h>
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#include <init.h>
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#include <log.h>
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#include <dm/uclass.h>
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#include <env.h>
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#include <env_internal.h>
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#include <fdtdec.h>
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#include <fpga.h>
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#include <malloc.h>
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#include <mmc.h>
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#include <watchdog.h>
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#include <wdt.h>
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#include <zynqpl.h>
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#include <asm/global_data.h>
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#include <asm/arch/hardware.h>
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#include <asm/arch/sys_proto.h>
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#include "../common/board.h"
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DECLARE_GLOBAL_DATA_PTR;
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int board_init(void)
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{
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if (IS_ENABLED(CONFIG_SPL_BUILD))
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printf("Silicon version:\t%d\n", zynq_get_silicon_version());
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return 0;
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}
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int board_late_init(void)
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{
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int env_targets_len = 0;
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const char *mode;
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char *new_targets;
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char *env_targets;
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if (!(gd->flags & GD_FLG_ENV_DEFAULT)) {
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debug("Saved variables - Skipping\n");
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return 0;
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}
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if (!CONFIG_IS_ENABLED(ENV_VARS_UBOOT_RUNTIME_CONFIG))
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return 0;
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switch ((zynq_slcr_get_boot_mode()) & ZYNQ_BM_MASK) {
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case ZYNQ_BM_QSPI:
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mode = "qspi";
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env_set("modeboot", "qspiboot");
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break;
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case ZYNQ_BM_NAND:
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mode = "nand";
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env_set("modeboot", "nandboot");
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break;
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case ZYNQ_BM_NOR:
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mode = "nor";
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env_set("modeboot", "norboot");
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break;
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case ZYNQ_BM_SD:
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mode = "mmc0";
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env_set("modeboot", "sdboot");
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break;
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case ZYNQ_BM_JTAG:
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mode = "jtag pxe dhcp";
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env_set("modeboot", "jtagboot");
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break;
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default:
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mode = "";
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env_set("modeboot", "");
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break;
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}
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/*
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* One terminating char + one byte for space between mode
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* and default boot_targets
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*/
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env_targets = env_get("boot_targets");
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if (env_targets)
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env_targets_len = strlen(env_targets);
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new_targets = calloc(1, strlen(mode) + env_targets_len + 2);
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if (!new_targets)
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return -ENOMEM;
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sprintf(new_targets, "%s %s", mode,
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env_targets ? env_targets : "");
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env_set("boot_targets", new_targets);
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return board_late_init_xilinx();
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}
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#if !defined(CONFIG_SYS_SDRAM_BASE) && !defined(CONFIG_SYS_SDRAM_SIZE)
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int dram_init_banksize(void)
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{
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return fdtdec_setup_memory_banksize();
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}
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int dram_init(void)
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{
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if (fdtdec_setup_mem_size_base() != 0)
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return -EINVAL;
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zynq_ddrc_init();
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return 0;
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}
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#else
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int dram_init(void)
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{
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gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
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CONFIG_SYS_SDRAM_SIZE);
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zynq_ddrc_init();
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return 0;
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}
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#endif
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enum env_location env_get_location(enum env_operation op, int prio)
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{
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u32 bootmode = zynq_slcr_get_boot_mode() & ZYNQ_BM_MASK;
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if (prio)
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return ENVL_UNKNOWN;
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switch (bootmode) {
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case ZYNQ_BM_SD:
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if (IS_ENABLED(CONFIG_ENV_IS_IN_FAT))
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return ENVL_FAT;
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if (IS_ENABLED(CONFIG_ENV_IS_IN_EXT4))
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return ENVL_EXT4;
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return ENVL_UNKNOWN;
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case ZYNQ_BM_NAND:
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if (IS_ENABLED(CONFIG_ENV_IS_IN_NAND))
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return ENVL_NAND;
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if (IS_ENABLED(CONFIG_ENV_IS_IN_UBI))
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return ENVL_UBI;
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return ENVL_UNKNOWN;
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case ZYNQ_BM_NOR:
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case ZYNQ_BM_QSPI:
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if (IS_ENABLED(CONFIG_ENV_IS_IN_SPI_FLASH))
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return ENVL_SPI_FLASH;
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return ENVL_UNKNOWN;
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case ZYNQ_BM_JTAG:
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default:
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return ENVL_NOWHERE;
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}
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}
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