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https://github.com/AsahiLinux/u-boot
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53fdc7ef2e
Gettime returns the current timer value. If CONFIG_SYS_HZ is defined then the timer value is also converted to seconds. Tegra20 (SeaBoard) # gettime Timer val: 7754 Seconds : 7 Remainder : 754 sys_hz = 1000 There has been some discussion about whether this is useful enough to be included in U-Boot. The following boards do not have CONFIG_SYS_HZ defined: M52277EVB M52277EVB_stmicro M53017EVB M54418TWR M54418TWR_nand_mii M54418TWR_nand_rmii M54418TWR_nand_rmii_lowfreq M54418TWR_serial_mii M54418TWR_serial_rmii Signed-off-by: Anton Staaf <robotboy@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
56 lines
1.7 KiB
C
56 lines
1.7 KiB
C
/*
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* Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
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*
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* Copyright (c) 2009, Code Aurora Forum. All rights reserved.
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*
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* (C) Copyright 2001
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* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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/*
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* Get Timer overflows after 2^32 / CONFIG_SYS_HZ (32Khz) = 131072 sec
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*/
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#include <common.h>
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#include <command.h>
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static int do_gettime(cmd_tbl_t *cmdtp, int flag, int argc,
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char * const argv[])
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{
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unsigned long int val = get_timer(0);
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#ifdef CONFIG_SYS_HZ
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printf("Timer val: %lu\n", val);
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printf("Seconds : %lu\n", val / CONFIG_SYS_HZ);
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printf("Remainder : %lu\n", val % CONFIG_SYS_HZ);
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printf("sys_hz = %lu\n", (unsigned long int)CONFIG_SYS_HZ);
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#else
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printf("CONFIG_SYS_HZ not defined");
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printf("Timer Val %lu", val);
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#endif
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return 0;
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}
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U_BOOT_CMD(
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gettime, 1, 1, do_gettime,
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"get timer val elapsed,\n",
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"get time elapsed from uboot start\n"
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);
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