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-rw-r--r--board/ads5121/iopin.c115
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diff --git a/board/ads5121/iopin.c b/board/ads5121/iopin.c
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--- a/board/ads5121/iopin.c
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-/*
- * (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 "iopin.h"
-
-/* IO pin fields */
-#define IO_PIN_FMUX(v) ((v) << 7) /* pin function */
-#define IO_PIN_HOLD(v) ((v) << 5) /* hold time, pci only */
-#define IO_PIN_PUD(v) ((v) << 4) /* if PUE, 0=pull-down, 1=pull-up */
-#define IO_PIN_PUE(v) ((v) << 3) /* pull up/down enable */
-#define IO_PIN_ST(v) ((v) << 2) /* schmitt trigger */
-#define IO_PIN_DS(v) ((v)) /* slew rate */
-
-static struct iopin_t {
- int p_offset; /* offset from IOCTL_MEM_OFFSET */
- int nr_pins; /* number of pins to set this way */
- int bit_or; /* or in the value instead of overwrite */
- u_long val; /* value to write or or */
-} ioregs_init[] = {
- /* FUNC1=FEC_RX_DV Sets Next 3 to FEC pads */
- {
- IOCTL_SPDIF_TXCLK, 3, 0,
- IO_PIN_FMUX(1) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
- IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
- },
- /* Set highest Slew on 9 PATA pins */
- {
- IOCTL_PATA_CE1, 9, 1,
- IO_PIN_FMUX(0) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
- IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
- },
- /* FUNC1=FEC_COL Sets Next 15 to FEC pads */
- {
- IOCTL_PSC0_0, 15, 0,
- IO_PIN_FMUX(1) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
- IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
- },
- /* FUNC1=SPDIF_TXCLK */
- {
- IOCTL_LPC_CS1, 1, 0,
- IO_PIN_FMUX(1) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
- IO_PIN_PUE(0) | IO_PIN_ST(1) | IO_PIN_DS(3)
- },
- /* FUNC2=SPDIF_TX and sets Next pin to SPDIF_RX */
- {
- IOCTL_I2C1_SCL, 2, 0,
- IO_PIN_FMUX(2) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
- IO_PIN_PUE(0) | IO_PIN_ST(1) | IO_PIN_DS(3)
- },
- /* FUNC2=DIU CLK */
- {
- IOCTL_PSC6_0, 1, 0,
- IO_PIN_FMUX(2) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
- IO_PIN_PUE(0) | IO_PIN_ST(1) | IO_PIN_DS(3)
- },
- /* FUNC2=DIU_HSYNC */
- {
- IOCTL_PSC6_1, 1, 0,
- IO_PIN_FMUX(2) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
- IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
- },
- /* FUNC2=DIUVSYNC Sets Next 26 to DIU Pads */
- {
- IOCTL_PSC6_4, 26, 0,
- IO_PIN_FMUX(2) | IO_PIN_HOLD(0) | IO_PIN_PUD(0) |
- IO_PIN_PUE(0) | IO_PIN_ST(0) | IO_PIN_DS(3)
- }
-};
-
-void iopin_initialize(void)
-{
- 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;
-
- n = sizeof(ioregs_init) / sizeof(ioregs_init[0]);
-
- for (i = 0; i < n; 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;
-}