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https://github.com/AsahiLinux/u-boot
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68 lines
1.6 KiB
C
68 lines
1.6 KiB
C
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/*
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* (C) Copyright 2004
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* Robert Whaley, Applied Data Systems, Inc. rwhaley@applieddata.net
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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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#include <common.h>
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#include <asm/arch/pxa-regs.h>
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void pcmcia_power_on(void)
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{
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#if 0
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if (!(GPLR(20) & GPIO_bit(20))) { /* 3.3V */
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GPCR(81) = GPIO_bit(81);
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GPSR(82) = GPIO_bit(82);
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}
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else if (!(GPLR(21) & GPIO_bit(21))) { /* 5.0V */
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GPCR(81) = GPIO_bit(81);
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GPCR(82) = GPIO_bit(82);
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}
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#else
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#warning "Board will only supply 5V, wait for next HW spin for selectable power"
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/* 5.0V */
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GPCR(81) = GPIO_bit(81);
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GPCR(82) = GPIO_bit(82);
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#endif
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udelay(300000);
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/* reset the card */
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GPSR(52) = GPIO_bit(52);
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/* enable PCMCIA */
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GPCR(83) = GPIO_bit(83);
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/* clear reset */
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udelay(10);
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GPCR(52) = GPIO_bit(52);
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udelay(20000);
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}
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void pcmcia_power_off(void)
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{
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/* 0V */
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GPSR(81) = GPIO_bit(81);
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GPSR(82) = GPIO_bit(82);
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/* disable PCMCIA */
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GPSR(83) = GPIO_bit(83);
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}
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