diff options
Diffstat (limited to 'board/adsvix/pcmcia.c')
-rw-r--r-- | board/adsvix/pcmcia.c | 67 |
1 files changed, 67 insertions, 0 deletions
diff --git a/board/adsvix/pcmcia.c b/board/adsvix/pcmcia.c new file mode 100644 index 0000000..ba5be01 --- /dev/null +++ b/board/adsvix/pcmcia.c @@ -0,0 +1,67 @@ +/* + * (C) Copyright 2004 + * Robert Whaley, Applied Data Systems, Inc. rwhaley@applieddata.net + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include <common.h> +#include <asm/arch/pxa-regs.h> + +void pcmcia_power_on(void) +{ +#if 0 + if (!(GPLR(20) & GPIO_bit(20))) { /* 3.3V */ + GPCR(81) = GPIO_bit(81); + GPSR(82) = GPIO_bit(82); + } + else if (!(GPLR(21) & GPIO_bit(21))) { /* 5.0V */ + GPCR(81) = GPIO_bit(81); + GPCR(82) = GPIO_bit(82); + } +#else +#warning "Board will only supply 5V, wait for next HW spin for selectable power" + /* 5.0V */ + GPCR(81) = GPIO_bit(81); + GPCR(82) = GPIO_bit(82); +#endif + + udelay(300000); + + /* reset the card */ + GPSR(52) = GPIO_bit(52); + + /* enable PCMCIA */ + GPCR(83) = GPIO_bit(83); + + /* clear reset */ + udelay(10); + GPCR(52) = GPIO_bit(52); + + udelay(20000); +} + +void pcmcia_power_off(void) +{ + /* 0V */ + GPSR(81) = GPIO_bit(81); + GPSR(82) = GPIO_bit(82); + /* disable PCMCIA */ + GPSR(83) = GPIO_bit(83); +} |