Blackfin: bf537-stamp: split CF/IDE code out into dedicated cf-ide.c

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

1 files changed, 66 insertions, 0 deletions

diff --git a/board/bf537-stamp/ide-cf.c b/board/bf537-stamp/ide-cf.c
new file mode 100644
index 0000000..5a3720d
--- /dev/null
+++ b/board/bf537-stamp/ide-cf.c
@@ -0,0 +1,66 @@
+/*
+ * CF IDE addon card code
+ *
+ * Enter bugs at http://blackfin.uclinux.org/
+ *
+ * Copyright (c) 2005-2009 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#include <common.h>
+#include <config.h>
+#include <command.h>
+#include <asm/blackfin.h>
+
+void cf_outb(unsigned char val, volatile unsigned char *addr)
+{
+	*(addr) = val;
+	SSYNC();
+}
+
+unsigned char cf_inb(volatile unsigned char *addr)
+{
+	volatile unsigned char c;
+
+	c = *(addr);
+	SSYNC();
+
+	return c;
+}
+
+void cf_insw(unsigned short *sect_buf, unsigned short *addr, int words)
+{
+	int i;
+
+	for (i = 0; i < words; i++)
+		*(sect_buf + i) = *(addr);
+	SSYNC();
+}
+
+void cf_outsw(unsigned short *addr, unsigned short *sect_buf, int words)
+{
+	int i;
+
+	for (i = 0; i < words; i++)
+		*(addr) = *(sect_buf + i);
+	SSYNC();
+}
+
+void cf_ide_init(void)
+{
+#if defined(CONFIG_BFIN_TRUE_IDE)
+	/* Enable ATASEL when in True IDE mode */
+	printf("Using CF True IDE Mode\n");
+	cf_outb(0, (unsigned char *)CONFIG_CF_ATASEL_ENA);
+	udelay(1000);
+#elif defined(CONFIG_BFIN_CF_IDE)
+	/* Disable ATASEL when we're in Common Memory Mode */
+	printf("Using CF Common Memory Mode\n");
+	cf_outb(0, (unsigned char *)CONFIG_CF_ATASEL_DIS);
+	udelay(1000);
+#elif defined(CONFIG_BFIN_HDD_IDE)
+	printf("Using HDD IDE Mode\n");
+#endif
+	ide_init();
+}