Consolidate ADS5121 IO Pin configuration
Consolidate ADS5121 IO Pin configuration to one file
board/ads5121/iopin.c.
Remove pin config from cpu/mpc512x/fec.c
Signed-off-by: Martha Marx <mmarx@silicontkx.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: John Rigby <jrigby@freescale.com>
diff --git a/board/ads5121/iopin.c b/board/ads5121/iopin.c
new file mode 100644
index 0000000..6a35c81
--- /dev/null
+++ b/board/ads5121/iopin.c
@@ -0,0 +1,96 @@
+/*
+ * (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 PAD TYPES
+ * for all types fmux is used to select the funtion
+ * ds sets the slew rate
+ * STD pins nothing extra (can set ds & fmux only)
+ * STD_PU pue=1 to enable pull & pud sets whether up or down resistors
+ * STD_ST st sets the Schmitt trigger
+ * STD_PU_ST pue & pud sets pull-up/down resistors as in STD_PU
+ * st sets the Schmitt trigger
+ * PCI hold sets output delay
+ * PCI_ST hold sets output delay and st sets the Schmitt trigger
+ */
+
+static struct iopin_t {
+ u_short p_offset; /* offset from IOCTL_MEM_OFFSET */
+ u_short p_no; /* number of pins to set this way */
+ u_short bit_or:7; /* Do bitwise OR instead of setting */
+ u_short fmux:2; /* pad function select 0-3 */
+ u_short hold:2; /* PCI pad types only; */
+ u_short pud:1; /* pull resistor; PU types only; */
+ /* if pue=1 then 0=pull-down, 1=pull-up */
+ u_short pue:1; /* Pull resistor enable; _PU types only */
+ u_short st:1; /* Schmitt trigger enable; _ST types only */
+ u_short ds:2; /* Slew rate class, 0=class1, ..., 3=class4 */
+} ioregs_init[] = {
+/* FUNC1=FEC_RX_DV Sets Next 3 to FEC pads */
+ {IOCTL_SPDIF_TXCLK, 3, 0, 1, 0, 0, 0, 0, 3},
+/* Set highest Slew on 9 PATA pins */
+ {IOCTL_PATA_CE1, 9, 1, 0, 0, 0, 0, 0, 3},
+/* FUNC1=FEC_COL Sets Next 15 to FEC pads */
+ {IOCTL_PSC0_0, 15, 0, 1, 0, 0, 0, 0, 3},
+/* FUNC1=SPDIF_TXCLK */
+ {IOCTL_LPC_CS1, 1, 0, 1, 0, 0, 0, 1, 3},
+/* FUNC2=SPDIF_TX and sets Next pin to SPDIF_RX */
+ {IOCTL_I2C1_SCL, 2, 0, 2, 0, 0, 0, 1, 3},
+/* FUNC2=DIU CLK */
+ {IOCTL_PSC6_0, 1, 0, 2, 0, 0, 0, 1, 3},
+/* FUNC2=DIU_HSYNC */
+ {IOCTL_PSC6_1, 1, 0, 2, 0, 0, 0, 0, 3},
+/* FUNC2=DIUVSYNC Sets Next 26 to DIU Pads */
+ {IOCTL_PSC6_4, 26, 0, 2, 0, 0, 0, 0, 3}
+};
+
+void iopin_initialize(void)
+{
+ short i, j, n, p;
+ u_long *reg;
+
+ if (sizeof(ioregs_init) == 0)
+ return;
+
+ immap_t *im = (immap_t *)CFG_IMMR;
+ reg = (u_long *)&(im->io_ctrl.regs[0]);
+ 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].p_no; p++, j++) {
+ /* lowest 9 bits sets the register */
+ if (ioregs_init[i].bit_or)
+ reg[j] |= *((u_long *) &ioregs_init[i].p_no)
+ & 0x000001ff;
+ else
+ reg[j] = *((u_long *) &ioregs_init[i].p_no)
+ & 0x000001ff;
+ }
+ }
+ return;
+}