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Diffstat (limited to 'arch/powerpc/cpu/mpc512x/iopin.c')
-rw-r--r--arch/powerpc/cpu/mpc512x/iopin.c49
1 files changed, 49 insertions, 0 deletions
diff --git a/arch/powerpc/cpu/mpc512x/iopin.c b/arch/powerpc/cpu/mpc512x/iopin.c
new file mode 100644
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+++ b/arch/powerpc/cpu/mpc512x/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 <asm/io.h>
+
+void iopin_initialize(iopin_t *ioregs_init, int len)
+{
+ short i, j, p;
+ u32 *reg;
+ immap_t *im = (immap_t *)CONFIG_SYS_IMMR;
+
+ reg = (u32 *)&(im->io_ctrl);
+
+ 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)
+ setbits_be32(reg + j, ioregs_init[i].val);
+ else
+ out_be32 (reg + j, ioregs_init[i].val);
+ }
+ }
+ return;
+}