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authorwdenk <wdenk>2003-12-08 01:34:36 +0000
committerwdenk <wdenk>2003-12-08 01:34:36 +0000
commit4e5ca3eb670460cd5ad9b07fa4aafc0dee6178be (patch)
tree445ad34577e02b219f118c8825ad5815c3229541 /include/asm-m68k/global_data.h
parent9fd5e31fe0245c44a11d35a8603bb6b25c97b5c8 (diff)
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* Patch by Bernhard Kuhn, 28 Nov 2003:
add support for Coldfire CPU add support for Motorola M5272C3 and M5282EVB boards
Diffstat (limited to 'include/asm-m68k/global_data.h')
-rw-r--r--include/asm-m68k/global_data.h62
1 files changed, 62 insertions, 0 deletions
diff --git a/include/asm-m68k/global_data.h b/include/asm-m68k/global_data.h
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+/*
+ * (C) Copyright 2002-2003
+ * 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 __ASM_GBL_DATA_H
+#define __ASM_GBL_DATA_H
+/*
+ * The following data structure is placed in some memory wich is
+ * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or
+ * some locked parts of the data cache) to allow for a minimum set of
+ * global variables during system initialization (until we have set
+ * up the memory controller so that we can use RAM).
+ *
+ * Keep it *SMALL* and remember to set CFG_GBL_DATA_SIZE > sizeof(gd_t)
+ */
+
+typedef struct global_data {
+ bd_t *bd;
+ unsigned long flags;
+ unsigned long baudrate;
+ unsigned long cpu_clk; /* CPU clock in Hz! */
+ unsigned long bus_clk;
+ unsigned long ram_size; /* RAM size */
+ unsigned long reloc_off; /* Relocation Offset */
+ unsigned long reset_status; /* reset status register at boot */
+ unsigned long env_addr; /* Address of Environment struct */
+ unsigned long env_valid; /* Checksum of Environment valid? */
+ unsigned long have_console; /* serial_init() was called */
+#ifdef CONFIG_BOARD_TYPES
+ unsigned long board_type;
+#endif
+} gd_t;
+
+/*
+ * Global Data Flags
+ */
+#define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */
+#define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */
+
+extern gd_t *global_data;
+#define DECLARE_GLOBAL_DATA_PTR gd_t *gd = global_data
+
+#endif /* __ASM_GBL_DATA_H */