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authorWolfgang Denk <wd@denx.de>2009-06-14 20:58:47 +0200
committerWolfgang Denk <wd@denx.de>2009-07-14 00:02:41 +0200
commit7629f1c06b6dea36bbc7bf70820b824e9b6d2227 (patch)
tree5e16623d76147730634a34aae1939187fa850efb /include/asm-ppc
parent0549353a6ba5aa03420c0962b9072e9cf1fa49d9 (diff)
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MPC512x: factor out common code
Now that we have 3 boards for the MPC512x it turns out that they all use the very same fixed_sdram() code. This patch factors out this common code into cpu/mpc512x/fixed_sdram.c and adds a new header file, include/asm-ppc/mpc512x.h, with some macros, inline functions and prototype definitions specific to MPC512x systems. Signed-off-by: Wolfgang Denk <wd@denx.de> Cc: Stefan Roese <sr@denx.de> Cc: Reinhard Arlt <reinhard.arlt@esd-electronics.com>
Diffstat (limited to 'include/asm-ppc')
-rw-r--r--include/asm-ppc/mpc512x.h57
1 files changed, 57 insertions, 0 deletions
diff --git a/include/asm-ppc/mpc512x.h b/include/asm-ppc/mpc512x.h
new file mode 100644
index 0000000..20456f5
--- /dev/null
+++ b/include/asm-ppc/mpc512x.h
@@ -0,0 +1,57 @@
+/*
+ * include/asm-ppc/mpc512x.h
+ *
+ * Prototypes, etc. for the Freescale MPC512x embedded cpu chips
+ *
+ * 2009 (C) Wolfgang Denk, DENX Software Engineering, wd@denx.de.
+ *
+ * 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
+ */
+#ifndef __ASMPPC_MPC512X_H
+#define __ASMPPC_MPC512X_H
+
+/*
+ * macros for manipulating CSx_START/STOP
+ */
+#define CSAW_START(start) ((start) & 0xFFFF0000)
+#define CSAW_STOP(start, size) (((start) + (size) - 1) >> 16)
+
+/*
+ * Inlines
+ */
+
+/*
+ * According to MPC5121e RM, configuring local access windows should
+ * be followed by a dummy read of the config register that was
+ * modified last and an isync.
+ */
+static inline void sync_law(volatile void *addr)
+{
+ in_be32(addr);
+ __asm__ __volatile__ ("isync");
+}
+
+/*
+ * Prototypes
+ */
+extern long int fixed_sdram(void);
+extern int mpc5121_diu_init(void);
+extern void ide_set_reset(int idereset);
+
+#endif /* __ASMPPC_MPC512X_H */