Initial revision

1 files changed, 87 insertions, 0 deletions

diff --git a/include/asm-ppc/global_data.h b/include/asm-ppc/global_data.h
new file mode 100644
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+++ b/include/asm-ppc/global_data.h
@@ -0,0 +1,87 @@
+/*
+ * (C) Copyright 2002
+ * 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;
+#if defined(CONFIG_8260)
+	/* There are many clocks on the MPC8260 - see page 9-5 */
+	unsigned long	vco_out;
+	unsigned long	cpm_clk;
+	unsigned long	scc_clk;
+	unsigned long	brg_clk;
+#endif
+	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		*/
+#if defined(CFG_ALLOC_DPRAM) || defined(CONFIG_8260)
+	unsigned int	dp_alloc_base;
+	unsigned int	dp_alloc_top;
+#endif
+#if defined(CONFIG_EVB64260)
+	unsigned int	mirror_hack[16];
+#endif
+#if defined(CONFIG_SANDPOINT) || defined(CONFIG_MUSENKI)
+	void *		console_addr;
+#endif
+#if defined(CONFIG_LCD) || defined(CONFIG_VIDEO)
+	unsigned long	fb_base;	/* Base address of framebuffer memory	*/
+#endif
+#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	*/
+
+#if 1
+#define DECLARE_GLOBAL_DATA_PTR     register gd_t *gd asm ("r29")
+#else /* We could use plain global data, but the resulting code is bigger */
+#define XTRN_DECLARE_GLOBAL_DATA_PTR	extern
+#define DECLARE_GLOBAL_DATA_PTR     XTRN_DECLARE_GLOBAL_DATA_PTR \
+				    gd_t *gd
+#endif
+
+#endif /* __ASM_GBL_DATA_H */