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authorMike Frysinger <vapier@gentoo.org>2009-02-22 16:30:38 -0500
committerMike Frysinger <vapier@gentoo.org>2009-04-02 06:42:00 -0400
commitd248cfb2d940b742f6bfdba9b832a3df96da3101 (patch)
tree87b21625755f07aa3ef0c84ed721db89cf7f95ad /board/bf537-stamp/ide-cf.c
parentad9073211ca9e62162a39851e082b8d07a662fb6 (diff)
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Blackfin: bf537-stamp: split CF/IDE code out into dedicated cf-ide.c
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'board/bf537-stamp/ide-cf.c')
-rw-r--r--board/bf537-stamp/ide-cf.c66
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();
+}