1 files changed, 81 insertions, 0 deletions
diff --git a/board/kup/kup4x/usb.c b/board/kup/kup4x/usb.c
new file mode 100644
index 0000000..5444008
--- /dev/null
+++ b/board/kup/kup4x/usb.c
@@ -0,0 +1,81 @@
+/*
+ * (C) Copyright 2004
+ * Klaus Heydeck, Kieback & Peter GmbH & Co KG, heydeck@kieback-peter.de
+ *
+ * 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 <mpc8xx.h>
+#include "../common/kup.h"
+
+
+#define  SL811_ADR (0x50000000)
+#define  SL811_DAT (0x50000001)
+
+
+static void sl811_write_index_data (__u8 index, __u8 data)
+{
+	*(volatile unsigned char *) (SL811_ADR) = index;
+	__asm__ ("eieio");
+	*(volatile unsigned char *) (SL811_DAT) = data;
+	__asm__ ("eieio");
+}
+
+static __u8 sl811_read_index_data (__u8 index)
+{
+	__u8 data;
+
+	*(volatile unsigned char *) (SL811_ADR) = index;
+	__asm__ ("eieio");
+	data = *(volatile unsigned char *) (SL811_DAT);
+	__asm__ ("eieio");
+	return (data);
+}
+
+int usb_init_kup4x (void)
+{
+	volatile immap_t *immap = (immap_t *) CFG_IMMR;
+	volatile memctl8xx_t *memctl = &immap->im_memctl;
+	int i;
+	unsigned char tmp;
+
+	memctl = &immap->im_memctl;
+	memctl->memc_or7 = 0xFFFF8726;
+	memctl->memc_br7 = 0x50000401;	/* start at 0x50000000 */
+	/* BP 14 low = USB ON */
+	immap->im_cpm.cp_pbdat &= ~(BP_USB_VCC);
+	/* PB 14 nomal port */
+	immap->im_cpm.cp_pbpar &= ~(BP_USB_VCC);
+	/* output */
+	immap->im_cpm.cp_pbdir |= (BP_USB_VCC);
+
+	puts ("USB:   ");
+
+	for (i = 0x10; i < 0xff; i++) {
+		sl811_write_index_data (i, i);
+		tmp = (sl811_read_index_data (i));
+		if (tmp != i) {
+			printf ("SL811 compare error index=0x%02x read=0x%02x\n", i, tmp);
+			return (-1);
+		}
+	}
+	printf ("SL811 ready\n");
+	return (0);
+}