diff options
Diffstat (limited to 'cpu/mpc512x/iopin.c')
| -rw-r--r-- | cpu/mpc512x/iopin.c | 49 | 
1 files changed, 49 insertions, 0 deletions
| diff --git a/cpu/mpc512x/iopin.c b/cpu/mpc512x/iopin.c new file mode 100644 index 000000000..01ab34aa3 --- /dev/null +++ b/cpu/mpc512x/iopin.c @@ -0,0 +1,49 @@ +/* + * (C) Copyright 2008 + * Martha J Marx, Silicon Turnkey Express, mmarx@silicontkx.com + * mpc512x I/O pin/pad initialization for the ADS5121 board + * 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 <linux/types.h> +#include <mpc512x.h> + +void iopin_initialize(iopin_t *ioregs_init, int len) +{ +	short i, j, n, p; +	u_long *reg; +	immap_t *im = (immap_t *)CFG_IMMR; + +	reg = (u_long *)&(im->io_ctrl.regs[0]); + +	if (sizeof(ioregs_init) == 0) +		return; + +	for (i = 0; i < len; i++) { +		for (p = 0, j = ioregs_init[i].p_offset / sizeof(u_long); +			p < ioregs_init[i].nr_pins; p++, j++) { +			if (ioregs_init[i].bit_or) +				reg[j] |= ioregs_init[i].val; +			else +				reg[j] = ioregs_init[i].val; +		} +	} +	return; +} |