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Diffstat (limited to 'include/asm-blackfin/blackfin-config-post.h')
-rw-r--r--include/asm-blackfin/blackfin-config-post.h72
1 files changed, 72 insertions, 0 deletions
diff --git a/include/asm-blackfin/blackfin-config-post.h b/include/asm-blackfin/blackfin-config-post.h
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+++ b/include/asm-blackfin/blackfin-config-post.h
@@ -0,0 +1,72 @@
+/*
+ * blackfin-config-post.h - setup common defines for Blackfin boards based on config.h
+ *
+ * Copyright (c) 2007 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#ifndef __ASM_BLACKFIN_CONFIG_POST_H__
+#define __ASM_BLACKFIN_CONFIG_POST_H__
+
+/* Check to make sure everything fits in external RAM */
+#if ((CFG_MONITOR_BASE + CFG_MONITOR_LEN) > CFG_MAX_RAM_SIZE)
+# error Memory Map does not fit into configuration
+#endif
+
+/* Sanity check BFIN_CPU */
+#ifndef BFIN_CPU
+# error BFIN_CPU: your board config needs to define this
+#endif
+
+/* Make sure the structure is properly aligned */
+#if ((CFG_GBL_DATA_ADDR & -4) != CFG_GBL_DATA_ADDR)
+# error CFG_GBL_DATA_ADDR: must be 4 byte aligned
+#endif
+
+/* Set default CONFIG_VCO_HZ if need be */
+#if !defined(CONFIG_VCO_HZ)
+# if (CONFIG_CLKIN_HALF == 0)
+# define CONFIG_VCO_HZ (CONFIG_CLKIN_HZ * CONFIG_VCO_MULT)
+# else
+# define CONFIG_VCO_HZ ((CONFIG_CLKIN_HZ * CONFIG_VCO_MULT) / 2)
+# endif
+#endif
+
+/* Set default CONFIG_CCLK_HZ if need be */
+#if !defined(CONFIG_CCLK_HZ)
+# if (CONFIG_PLL_BYPASS == 0)
+# define CONFIG_CCLK_HZ (CONFIG_VCO_HZ / CONFIG_CCLK_DIV)
+# else
+# define CONFIG_CCLK_HZ CONFIG_CLKIN_HZ
+# endif
+#endif
+
+/* Set default CONFIG_SCLK_HZ if need be */
+#if !defined(CONFIG_SCLK_HZ)
+# if (CONFIG_PLL_BYPASS == 0)
+# define CONFIG_SCLK_HZ (CONFIG_VCO_HZ / CONFIG_SCLK_DIV)
+# else
+# define CONFIG_SCLK_HZ CONFIG_CLKIN_HZ
+# endif
+#endif
+
+/* Since we use these to program PLL registers directly,
+ * make sure the values are sane and won't screw us up.
+ */
+#if (CONFIG_VCO_MULT & 0x3F) != CONFIG_VCO_MULT
+# error CONFIG_VCO_MULT: Invalid value: must fit in 6 bits (0 - 63)
+#endif
+#if (CONFIG_CLKIN_HALF & 0x1) != CONFIG_CLKIN_HALF
+# error CONFIG_CLKIN_HALF: Invalid value: must be 0 or 1
+#endif
+#if (CONFIG_PLL_BYPASS & 0x1) != CONFIG_PLL_BYPASS
+# error CONFIG_PLL_BYPASS: Invalid value: must be 0 or 1
+#endif
+
+/* Using L1 scratch pad makes sense for everyone by default. */
+#ifndef CMD_LINE_ADDR
+# define CMD_LINE_ADDR L1_SRAM_SCRATCH
+#endif
+
+#endif