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authorHaavard Skinnemoen <hskinnemoen@atmel.com>2007-08-13 16:34:33 +0200
committerHaavard Skinnemoen <hskinnemoen@atmel.com>2007-08-13 16:34:33 +0200
commit375c2c9e57ea5b8d678475379378f4774aa9cb88 (patch)
treec8499eaec089c8fe7c9eda562131f45b4a7738c6 /post/lib_ppc/fpu/fpu.c
parentf0d1246ed7cb5a88522244c596d7ae7e6f161283 (diff)
parent9986bc3e40e899bea372a99a2bca4071bdf2e24b (diff)
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Merge commit 'upstream/master'
Diffstat (limited to 'post/lib_ppc/fpu/fpu.c')
-rw-r--r--post/lib_ppc/fpu/fpu.c92
1 files changed, 92 insertions, 0 deletions
diff --git a/post/lib_ppc/fpu/fpu.c b/post/lib_ppc/fpu/fpu.c
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+/*
+ * Copyright (C) 2007
+ * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * Author: Sergei Poselenov <sposelenov@emcraft.com>
+ *
+ * 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>
+
+/*
+ * FPU test
+ *
+ * This test checks the arithmetic logic unit (ALU) of CPU.
+ * It tests independently various groups of instructions using
+ * run-time modification of the code to reduce the memory footprint.
+ * For more details refer to post/cpu/ *.c files.
+ */
+
+#ifdef CONFIG_POST
+
+#include <post.h>
+
+#if CONFIG_POST & CFG_POST_FPU
+
+#include <watchdog.h>
+
+extern int fpu_status (void);
+extern void fpu_enable (void);
+extern void fpu_disable (void);
+
+extern int fpu_post_test_math1 (void);
+extern int fpu_post_test_math2 (void);
+extern int fpu_post_test_math3 (void);
+extern int fpu_post_test_math4 (void);
+extern int fpu_post_test_math5 (void);
+extern int fpu_post_test_math6 (void);
+extern int fpu_post_test_math7 (void);
+
+int fpu_post_test (int flags)
+{
+ int fpu = fpu_status ();
+
+ int ret = 0;
+
+ WATCHDOG_RESET ();
+
+ if (!fpu)
+ fpu_enable ();
+
+ if (ret == 0)
+ ret = fpu_post_test_math1 ();
+ if (ret == 0)
+ ret = fpu_post_test_math2 ();
+ if (ret == 0)
+ ret = fpu_post_test_math3 ();
+ if (ret == 0)
+ ret = fpu_post_test_math4 ();
+ if (ret == 0)
+ ret = fpu_post_test_math5 ();
+ if (ret == 0)
+ ret = fpu_post_test_math6 ();
+ if (ret == 0)
+ ret = fpu_post_test_math7 ();
+
+ if (!fpu)
+ fpu_disable ();
+
+ WATCHDOG_RESET ();
+
+ return ret;
+}
+
+#endif /* CONFIG_POST & CFG_POST_FPU */
+#endif /* CONFIG_POST */