board.c
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// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2012 Michal Simek <monstr@monstr.eu>
* (C) Copyright 2013 - 2018 Xilinx, Inc.
*/
#include <common.h>
#include <dm/uclass.h>
#include <fdtdec.h>
#include <fpga.h>
#include <malloc.h>
#include <mmc.h>
#include <watchdog.h>
#include <wdt.h>
#include <zynqpl.h>
#include <asm/arch/hardware.h>
#include <asm/arch/sys_proto.h>
DECLARE_GLOBAL_DATA_PTR;
#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_WDT)
static struct udevice *watchdog_dev;
#endif
#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_BOARD_EARLY_INIT_F)
int board_early_init_f(void)
{
# if defined(CONFIG_WDT)
/* bss is not cleared at time when watchdog_reset() is called */
watchdog_dev = NULL;
# endif
return 0;
}
#endif
int board_init(void)
{
#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_WDT)
if (uclass_get_device_by_seq(UCLASS_WDT, 0, &watchdog_dev)) {
debug("Watchdog: Not found by seq!\n");
if (uclass_get_device(UCLASS_WDT, 0, &watchdog_dev)) {
puts("Watchdog: Not found!\n");
return 0;
}
}
wdt_start(watchdog_dev, 0, 0);
puts("Watchdog: Started\n");
# endif
return 0;
}
int board_late_init(void)
{
int env_targets_len = 0;
const char *mode;
char *new_targets;
char *env_targets;
switch ((zynq_slcr_get_boot_mode()) & ZYNQ_BM_MASK) {
case ZYNQ_BM_QSPI:
mode = "qspi";
env_set("modeboot", "qspiboot");
break;
case ZYNQ_BM_NAND:
mode = "nand";
env_set("modeboot", "nandboot");
break;
case ZYNQ_BM_NOR:
mode = "nor";
env_set("modeboot", "norboot");
break;
case ZYNQ_BM_SD:
mode = "mmc";
env_set("modeboot", "sdboot");
break;
case ZYNQ_BM_JTAG:
mode = "pxe dhcp";
env_set("modeboot", "jtagboot");
break;
default:
mode = "";
env_set("modeboot", "");
break;
}
/*
* One terminating char + one byte for space between mode
* and default boot_targets
*/
env_targets = env_get("boot_targets");
if (env_targets)
env_targets_len = strlen(env_targets);
new_targets = calloc(1, strlen(mode) + env_targets_len + 2);
if (!new_targets)
return -ENOMEM;
sprintf(new_targets, "%s %s", mode,
env_targets ? env_targets : "");
env_set("boot_targets", new_targets);
return 0;
}
#if !defined(CONFIG_SYS_SDRAM_BASE) && !defined(CONFIG_SYS_SDRAM_SIZE)
int dram_init_banksize(void)
{
return fdtdec_setup_memory_banksize();
}
int dram_init(void)
{
if (fdtdec_setup_mem_size_base() != 0)
return -EINVAL;
zynq_ddrc_init();
return 0;
}
#else
int dram_init(void)
{
gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
CONFIG_SYS_SDRAM_SIZE);
zynq_ddrc_init();
return 0;
}
#endif
#if defined(CONFIG_WATCHDOG)
/* Called by macro WATCHDOG_RESET */
void watchdog_reset(void)
{
# if !defined(CONFIG_SPL_BUILD)
static ulong next_reset;
ulong now;
if (!watchdog_dev)
return;
now = timer_get_us();
/* Do not reset the watchdog too often */
if (now > next_reset) {
wdt_reset(watchdog_dev);
next_reset = now + 1000;
}
# endif
}
#endif