Blackfin arch: Fix CCLK and SCLK checks

Fix CCLK and SCLK checks, combine all arch checks into one file
for maintance. Checkins that remove more lines than they add are always
good.

Signed-off-by: Robin Getz <robin.getz@analog.com>
Signed-off-by: Bryan Wu <bryan.wu@analog.com>

1 files changed, 68 insertions, 0 deletions

diff --git a/include/asm-blackfin/mach-common/clocks.h b/include/asm-blackfin/mach-common/clocks.h
new file mode 100644
index 00000000000..5e8113ee893
--- /dev/null
+++ b/include/asm-blackfin/mach-common/clocks.h
@@ -0,0 +1,68 @@
+/*
+ * File:         include/asm-blackfin/mach-common/clocks.h
+ * Based on:     include/asm-blackfin/mach-bf537/bf537.h
+ * Author:	 Robin Getz <rgetz@blackfin.uclinux.org>
+ *
+ * Created:      25Jul07
+ * Description:  Common Clock definitions for various kernel files
+ *
+ * Modified:
+ *               Copyright 2004-2007 Analog Devices Inc.
+ *
+ * Bugs:         Enter bugs at http://blackfin.uclinux.org/
+ *
+ * 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, see the file COPYING, or write
+ * to the Free Software Foundation, Inc.,
+ * 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+
+
+#ifdef CONFIG_CCLK_DIV_1
+# define CONFIG_CCLK_ACT_DIV   CCLK_DIV1
+# define CONFIG_CCLK_DIV 1
+#endif
+
+#ifdef CONFIG_CCLK_DIV_2
+# define CONFIG_CCLK_ACT_DIV   CCLK_DIV2
+# define CONFIG_CCLK_DIV 2
+#endif
+
+#ifdef CONFIG_CCLK_DIV_4
+# define CONFIG_CCLK_ACT_DIV   CCLK_DIV4
+# define CONFIG_CCLK_DIV 4
+#endif
+
+#ifdef CONFIG_CCLK_DIV_8
+# define CONFIG_CCLK_ACT_DIV   CCLK_DIV8
+# define CONFIG_CCLK_DIV 8
+#endif
+
+#ifndef CONFIG_PLL_BYPASS
+# ifndef CONFIG_CLKIN_HALF
+#  define CONFIG_VCO_HZ   (CONFIG_CLKIN_HZ * CONFIG_VCO_MULT)
+# else
+#  define CONFIG_VCO_HZ   ((CONFIG_CLKIN_HZ * CONFIG_VCO_MULT)/2)
+# endif
+
+# define CONFIG_CCLK_HZ  (CONFIG_VCO_HZ/CONFIG_CCLK_DIV)
+# define CONFIG_SCLK_HZ  (CONFIG_VCO_HZ/CONFIG_SCLK_DIV)
+
+#else
+# define CONFIG_VCO_HZ   (CONFIG_CLKIN_HZ)
+# define CONFIG_CCLK_HZ  (CONFIG_CLKIN_HZ)
+# define CONFIG_SCLK_HZ  (CONFIG_CLKIN_HZ)
+# define CONFIG_VCO_MULT 0
+#endif
+