split CPC45 board-specific IDE functions from cmd_ide.c

Move input_data() and friends to board/cpc45/ide.c, as overrides for weak
aliases in cmd_ide.c

note: checkpatch emits warnings about using volatile

Signed-off-by: Pavel Herrmann <morpheus.ibis@gmail.com>

1 files changed, 130 insertions, 0 deletions

diff --git a/board/cpc45/ide.c b/board/cpc45/ide.c
new file mode 100644
index 0000000..7b7237b
--- /dev/null
+++ b/board/cpc45/ide.c
@@ -0,0 +1,130 @@
+/*
+ * (C) Copyright 2001
+ * Rob Taylor, Flying Pig Systems. robt@flyingpig.com.
+ *
+ * (C) Copyright 2000-2011
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.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 <ide.h>
+#include <ata.h>
+
+#define EIEIO		__asm__ volatile ("eieio")
+#define SYNC		__asm__ volatile ("sync")
+
+void ide_input_swap_data(int dev, ulong *sect_buf, int words)
+{
+	uchar i;
+	volatile uchar *pbuf_even =
+		(uchar *) (ATA_CURR_BASE(dev) + ATA_DATA_EVEN);
+	volatile uchar *pbuf_odd =
+		(uchar *) (ATA_CURR_BASE(dev) + ATA_DATA_ODD);
+	ushort *dbuf = (ushort *) sect_buf;
+
+	while (words--) {
+		for (i = 0; i < 2; i++) {
+			*(((uchar *) (dbuf)) + 1) = *pbuf_even;
+			*(uchar *) dbuf = *pbuf_odd;
+			dbuf += 1;
+		}
+	}
+}
+
+void ide_input_data(int dev, ulong *sect_buf, int words)
+{
+	uchar *dbuf;
+	volatile uchar *pbuf_even;
+	volatile uchar *pbuf_odd;
+
+	pbuf_even = (uchar *) (ATA_CURR_BASE(dev) + ATA_DATA_EVEN);
+	pbuf_odd = (uchar *) (ATA_CURR_BASE(dev) + ATA_DATA_ODD);
+	dbuf = (uchar *) sect_buf;
+	while (words--) {
+		*dbuf++ = *pbuf_even;
+		EIEIO;
+		SYNC;
+		*dbuf++ = *pbuf_odd;
+		EIEIO;
+		SYNC;
+		*dbuf++ = *pbuf_even;
+		EIEIO;
+		SYNC;
+		*dbuf++ = *pbuf_odd;
+		EIEIO;
+		SYNC;
+	}
+}
+
+void ide_input_data_shorts(int dev, ushort *sect_buf, int shorts)
+{
+	uchar *dbuf;
+	volatile uchar *pbuf_even;
+	volatile uchar *pbuf_odd;
+
+	pbuf_even = (uchar *) (ATA_CURR_BASE(dev) + ATA_DATA_EVEN);
+	pbuf_odd = (uchar *) (ATA_CURR_BASE(dev) + ATA_DATA_ODD);
+	dbuf = (uchar *) sect_buf;
+	while (shorts--) {
+		EIEIO;
+		*dbuf++ = *pbuf_even;
+		EIEIO;
+		*dbuf++ = *pbuf_odd;
+	}
+}
+
+void ide_output_data(int dev, const ulong *sect_buf, int words)
+{
+	uchar *dbuf;
+	volatile uchar *pbuf_even;
+	volatile uchar *pbuf_odd;
+
+	pbuf_even = (uchar *) (ATA_CURR_BASE(dev) + ATA_DATA_EVEN);
+	pbuf_odd = (uchar *) (ATA_CURR_BASE(dev) + ATA_DATA_ODD);
+	dbuf = (uchar *) sect_buf;
+	while (words--) {
+		EIEIO;
+		*pbuf_even = *dbuf++;
+		EIEIO;
+		*pbuf_odd = *dbuf++;
+		EIEIO;
+		*pbuf_even = *dbuf++;
+		EIEIO;
+		*pbuf_odd = *dbuf++;
+	}
+}
+
+void ide_output_data_shorts(int dev, ushort *sect_buf, int shorts)
+{
+	uchar *dbuf;
+	volatile uchar *pbuf_even;
+	volatile uchar *pbuf_odd;
+
+	pbuf_even = (uchar *) (ATA_CURR_BASE(dev) + ATA_DATA_EVEN);
+	pbuf_odd = (uchar *) (ATA_CURR_BASE(dev) + ATA_DATA_ODD);
+	dbuf = (uchar *) sect_buf;
+	while (shorts--) {
+		EIEIO;
+		*pbuf_even = *dbuf++;
+		EIEIO;
+		*pbuf_odd = *dbuf++;
+	}
+}