sandbox: Add architecture header files
This adds required header files for the sandbox architecture, and a basic
description of what sandbox is (README.sandbox).
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/arch/sandbox/include/asm/global_data.h b/arch/sandbox/include/asm/global_data.h
new file mode 100644
index 0000000..8d47191
--- /dev/null
+++ b/arch/sandbox/include/asm/global_data.h
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) 2011 The Chromium OS Authors.
+ *
+ * (C) Copyright 2002-2010
+ * 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 GENERATED_GBL_DATA_SIZE > sizeof(gd_t)
+ */
+
+typedef struct global_data {
+ bd_t *bd;
+ unsigned long flags;
+ unsigned long baudrate;
+ unsigned long have_console; /* serial_init() was called */
+ unsigned long env_addr; /* Address of Environment struct */
+ unsigned long env_valid; /* Checksum of Environment valid? */
+ unsigned long fb_base; /* base address of frame buffer */
+ u8 *ram_buf; /* emulated RAM buffer */
+ phys_size_t ram_size; /* RAM size */
+ void **jt; /* jump table */
+ char env_buf[32]; /* buffer for getenv() before reloc. */
+} gd_t;
+
+/*
+ * Global Data Flags
+ */
+#define GD_FLG_RELOC 0x00001 /* Code was relocated to RAM */
+#define GD_FLG_DEVINIT 0x00002 /* Devices have been initialized */
+#define GD_FLG_SILENT 0x00004 /* Silent mode */
+#define GD_FLG_POSTFAIL 0x00008 /* Critical POST test failed */
+#define GD_FLG_POSTSTOP 0x00010 /* POST seqeunce aborted */
+#define GD_FLG_LOGINIT 0x00020 /* Log Buffer has been initialized */
+#define GD_FLG_DISABLE_CONSOLE 0x00040 /* Disable console (in & out) */
+#define GD_FLG_ENV_READY 0x00080 /* Env. imported into hash table */
+
+#define DECLARE_GLOBAL_DATA_PTR extern gd_t *gd
+
+#endif /* __ASM_GBL_DATA_H */