Add support for UEC to 8568

Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
Signed-off-by: Andy Fleming <afleming@freescale.com>

1 files changed, 85 insertions, 0 deletions

diff --git a/cpu/mpc85xx/qe_io.c b/cpu/mpc85xx/qe_io.c
new file mode 100644
index 0000000..8878bc5
--- /dev/null
+++ b/cpu/mpc85xx/qe_io.c
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2006 Freescale Semiconductor, Inc.
+ *
+ * Dave Liu <daveliu@freescale.com>
+ * based on source code of Shlomi Gridish
+ *
+ * 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/errno.h"
+#include "asm/io.h"
+#include "asm/immap_85xx.h"
+
+#if defined(CONFIG_QE)
+#define	NUM_OF_PINS	32
+void qe_config_iopin(u8 port, u8 pin, int dir, int open_drain, int assign)
+{
+	u32			pin_2bit_mask;
+	u32			pin_2bit_dir;
+	u32			pin_2bit_assign;
+	u32			pin_1bit_mask;
+	u32			tmp_val;
+	volatile immap_t	*im = (volatile immap_t *)CFG_IMMR;
+	volatile par_io_t	*par_io = (volatile par_io_t *)
+						&(im->im_gur.qe_par_io);
+
+	/* Caculate pin location and 2bit mask and dir */
+	pin_2bit_mask = (u32)(0x3 << (NUM_OF_PINS-(pin%(NUM_OF_PINS/2)+1)*2));
+	pin_2bit_dir = (u32)(dir << (NUM_OF_PINS-(pin%(NUM_OF_PINS/2)+1)*2));
+
+	/* Setup the direction */
+	tmp_val = (pin > (NUM_OF_PINS/2) - 1) ? \
+		in_be32(&par_io[port].cpdir2) :
+		in_be32(&par_io[port].cpdir1);
+
+	if (pin > (NUM_OF_PINS/2) -1) {
+		out_be32(&par_io[port].cpdir2, ~pin_2bit_mask & tmp_val);
+		out_be32(&par_io[port].cpdir2, pin_2bit_dir | tmp_val);
+	} else {
+		out_be32(&par_io[port].cpdir1, ~pin_2bit_mask & tmp_val);
+		out_be32(&par_io[port].cpdir1, pin_2bit_dir | tmp_val);
+	}
+
+	/* Calculate pin location for 1bit mask */
+	pin_1bit_mask = (u32)(1 << (NUM_OF_PINS - (pin+1)));
+
+	/* Setup the open drain */
+	tmp_val = in_be32(&par_io[port].cpodr);
+	if (open_drain)
+		out_be32(&par_io[port].cpodr, pin_1bit_mask | tmp_val);
+	else
+		out_be32(&par_io[port].cpodr, ~pin_1bit_mask & tmp_val);
+
+	/* Setup the assignment */
+	tmp_val = (pin > (NUM_OF_PINS/2) - 1) ?
+		in_be32(&par_io[port].cppar2):
+		in_be32(&par_io[port].cppar1);
+	pin_2bit_assign = (u32)(assign
+				<< (NUM_OF_PINS - (pin%(NUM_OF_PINS/2)+1)*2));
+
+	/* Clear and set 2 bits mask */
+	if (pin > (NUM_OF_PINS/2) - 1) {
+		out_be32(&par_io[port].cppar2, ~pin_2bit_mask & tmp_val);
+		out_be32(&par_io[port].cppar2, pin_2bit_assign | tmp_val);
+	} else {
+		out_be32(&par_io[port].cppar1, ~pin_2bit_mask & tmp_val);
+		out_be32(&par_io[port].cppar1, pin_2bit_assign | tmp_val);
+	}
+}
+
+#endif /* CONFIG_QE */