upstream u-boot with additional patches for our devices/boards:
https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ;
Gbit ethernet patch for some LIME2 revisions ;
with SPI flash support
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41 lines
1.2 KiB
41 lines
1.2 KiB
13 years ago
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/*
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* Copyright 2012 Freescale Semiconductor, Inc.
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* Author: Matthew McClintock <msm@freescale.com>
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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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*
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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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#include <common.h>
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#include <asm/processor.h>
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#include <asm/global_data.h>
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DECLARE_GLOBAL_DATA_PTR;
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#ifndef CONFIG_SYS_FSL_TBCLK_DIV
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#define CONFIG_SYS_FSL_TBCLK_DIV 8
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#endif
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void udelay(unsigned long usec)
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{
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u32 ticks_per_usec = gd->bus_clk / (CONFIG_SYS_FSL_TBCLK_DIV * 1000000);
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u32 ticks = ticks_per_usec * usec;
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u32 s = mfspr(SPRN_TBRL);
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while ((mfspr(SPRN_TBRL) - s) < ticks);
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}
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