u-boot/board/xilinx/zynq/board.c
Michal Simek e6cc3b25d7 arm: zynq: Wire watchdog internals
Watchdog is only enabled in full u-boot. Adoption for SPL should be also
done because that's the right place where watchdog should be enabled.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
2018-03-23 09:34:43 +01:00

215 lines
4.4 KiB
C

/*
* (C) Copyright 2012 Michal Simek <monstr@monstr.eu>
* (C) Copyright 2013 - 2018 Xilinx, Inc.
*
* SPDX-License-Identifier: GPL-2.0+
*/
#include <common.h>
#include <dm/uclass.h>
#include <fdtdec.h>
#include <fpga.h>
#include <mmc.h>
#include <wdt.h>
#include <zynqpl.h>
#include <asm/arch/hardware.h>
#include <asm/arch/sys_proto.h>
#include <asm/arch/ps7_init_gpl.h>
DECLARE_GLOBAL_DATA_PTR;
#if (defined(CONFIG_FPGA) && !defined(CONFIG_SPL_BUILD)) || \
(defined(CONFIG_SPL_FPGA_SUPPORT) && defined(CONFIG_SPL_BUILD))
static xilinx_desc fpga;
/* It can be done differently */
static xilinx_desc fpga007s = XILINX_XC7Z007S_DESC(0x7);
static xilinx_desc fpga010 = XILINX_XC7Z010_DESC(0x10);
static xilinx_desc fpga012s = XILINX_XC7Z012S_DESC(0x12);
static xilinx_desc fpga014s = XILINX_XC7Z014S_DESC(0x14);
static xilinx_desc fpga015 = XILINX_XC7Z015_DESC(0x15);
static xilinx_desc fpga020 = XILINX_XC7Z020_DESC(0x20);
static xilinx_desc fpga030 = XILINX_XC7Z030_DESC(0x30);
static xilinx_desc fpga035 = XILINX_XC7Z035_DESC(0x35);
static xilinx_desc fpga045 = XILINX_XC7Z045_DESC(0x45);
static xilinx_desc fpga100 = XILINX_XC7Z100_DESC(0x100);
#endif
#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_FPGA) && !defined(CONFIG_SPL_BUILD)) || \
(defined(CONFIG_SPL_FPGA_SUPPORT) && defined(CONFIG_SPL_BUILD))
u32 idcode;
idcode = zynq_slcr_get_idcode();
switch (idcode) {
case XILINX_ZYNQ_7007S:
fpga = fpga007s;
break;
case XILINX_ZYNQ_7010:
fpga = fpga010;
break;
case XILINX_ZYNQ_7012S:
fpga = fpga012s;
break;
case XILINX_ZYNQ_7014S:
fpga = fpga014s;
break;
case XILINX_ZYNQ_7015:
fpga = fpga015;
break;
case XILINX_ZYNQ_7020:
fpga = fpga020;
break;
case XILINX_ZYNQ_7030:
fpga = fpga030;
break;
case XILINX_ZYNQ_7035:
fpga = fpga035;
break;
case XILINX_ZYNQ_7045:
fpga = fpga045;
break;
case XILINX_ZYNQ_7100:
fpga = fpga100;
break;
}
#endif
#if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_WDT)
if (uclass_get_device(UCLASS_WDT, 0, &watchdog_dev)) {
puts("Watchdog: Not found!\n");
} else {
wdt_start(watchdog_dev, 0, 0);
puts("Watchdog: Started\n");
}
# endif
#if (defined(CONFIG_FPGA) && !defined(CONFIG_SPL_BUILD)) || \
(defined(CONFIG_SPL_FPGA_SUPPORT) && defined(CONFIG_SPL_BUILD))
fpga_init();
fpga_add(fpga_xilinx, &fpga);
#endif
return 0;
}
int board_late_init(void)
{
switch ((zynq_slcr_get_boot_mode()) & ZYNQ_BM_MASK) {
case ZYNQ_BM_QSPI:
env_set("modeboot", "qspiboot");
break;
case ZYNQ_BM_NAND:
env_set("modeboot", "nandboot");
break;
case ZYNQ_BM_NOR:
env_set("modeboot", "norboot");
break;
case ZYNQ_BM_SD:
env_set("modeboot", "sdboot");
break;
case ZYNQ_BM_JTAG:
env_set("modeboot", "jtagboot");
break;
default:
env_set("modeboot", "");
break;
}
return 0;
}
#ifdef CONFIG_DISPLAY_BOARDINFO
int checkboard(void)
{
u32 version = zynq_get_silicon_version();
version <<= 1;
if (version > (PCW_SILICON_VERSION_3 << 1))
version += 1;
puts("Board: Xilinx Zynq\n");
printf("Silicon: v%d.%d\n", version >> 1, version & 1);
return 0;
}
#endif
int zynq_board_read_rom_ethaddr(unsigned char *ethaddr)
{
#if defined(CONFIG_ZYNQ_GEM_EEPROM_ADDR) && \
defined(CONFIG_ZYNQ_GEM_I2C_MAC_OFFSET)
if (eeprom_read(CONFIG_ZYNQ_GEM_EEPROM_ADDR,
CONFIG_ZYNQ_GEM_I2C_MAC_OFFSET,
ethaddr, 6))
printf("I2C EEPROM MAC address read failed\n");
#endif
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_memory_size() != 0)
return -EINVAL;
zynq_ddrc_init();
return 0;
}
#else
int dram_init(void)
{
gd->ram_size = 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