mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-27 13:33:40 +00:00
ccd063e981
This patch moves all instances of static "watchdog_dev" declarations to the "data" section. This may be needed, as the BSS may not be cleared in the early U-Boot phase, where watchdog_reset() is already beeing called. This may result in incorrect pointer access, as the check to "!watchdog_dev" in watchdog_reset() may not be true and the function may continue to run. Signed-off-by: Stefan Roese <sr@denx.de> Cc: Heiko Schocher <hs@denx.de> Cc: Tom Rini <trini@konsulko.com> Cc: Michal Simek <michal.simek@xilinx.com> Cc: "Marek Behún" <marek.behun@nic.cz> Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com> Tested-by: Michal Simek <michal.simek@xilinx.com> (on zcu100) Reviewed-by: Michal Simek <michal.simek@xilinx.com>
151 lines
2.8 KiB
C
151 lines
2.8 KiB
C
// 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 __attribute__((section(".data"))) = NULL;
|
|
#endif
|
|
|
|
#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_BOARD_EARLY_INIT_F)
|
|
int board_early_init_f(void)
|
|
{
|
|
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
|