arm: Add bootinfo support

Motorola bootinfo support, add serial number
and hw revision as needed for SYSTEM_BOOT event

(cherry picked from commit 2c5d15e240fc23e2c03840cf28fe0a1aeb222b34)
(cherry picked from commit d8c9bffaf7ec254a6a0529a4c968b4c0d2e5c1eb)
Signed-off-by: Jeffrey Carlyle <[email protected]>

Conflicts:
	arch/arm/Kconfig

arch/arm/Kconfig

@@ -267,6 +267,14 @@ config GENERIC_BUG
 	def_bool y
 	depends on BUG
 
+config BOOTINFO
+	bool "Boot Information Feature"
+	default n
+	help
+	  This feature provides access to certain boot information
+	  from both kernel context (via function call) and user
+	  context (via /proc/bootinfo).
+
 source "init/Kconfig"
 
 source "kernel/Kconfig.freezer"

arch/arm/include/asm/bootinfo.h

@@ -0,0 +1,102 @@
+/*
+ * linux/include/asm/bootinfo.h:  Include file for boot information
+ *                                provided on Motorola phones
+ *
+ * Copyright (C) 2009 Motorola, Inc.
+ *
+ * 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
+ *
+ * Date         Author          Comment
+ * 01/07/2009   Motorola        Initial version
+ */
+
+#ifndef __ASMARM_BOOTINFO_H
+#define __ASMARM_BOOTINFO_H
+
+
+#if !defined(__KERNEL__) || defined(CONFIG_BOOTINFO)
+
+/*
+ * These #defines are used for the bits in powerup_reason.
+ */
+#define PU_REASON_USB_CABLE             0x00000010 /* Bit 4  */
+#define PU_REASON_FACTORY_CABLE         0x00000020 /* Bit 5  */
+#define PU_REASON_PWR_KEY_PRESS         0x00000080 /* Bit 7  */
+#define PU_REASON_CHARGER               0x00000100 /* Bit 8  */
+#define PU_REASON_POWER_CUT             0x00000200 /* bit 9  */
+#define PU_REASON_SW_AP_RESET           0x00004000 /* Bit 14 */
+#define PU_REASON_WDOG_AP_RESET         0x00008000 /* Bit 15 */
+#define PU_REASON_AP_KERNEL_PANIC       0x00020000 /* Bit 17 */
+
+
+/*
+ * These #defines are used for the battery status at boot.
+ * When no battery is present, the status is BATTERY_LO_VOLTAGE.
+ */
+#define BATTERY_GOOD_VOLTAGE    1
+#define BATTERY_LO_VOLTAGE      2
+#define BATTERY_UNKNOWN         (-1)
+
+/*
+ * /proc/bootinfo has a strict format.  Each line contains a name/value
+ * pair which are separated with a colon and a single space on both
+ * sides of the colon.  The following defines help you size the
+ * buffers used to read the data from /proc/bootinfo.
+ *
+ * BOOTINFO_MAX_NAME_LEN:  maximum size in bytes of a name in the
+ *                         bootinfo line.  Don't forget to add space
+ *                         for the NUL if you need it.
+ * BOOTINFO_MAX_VAL_LEN:   maximum size in bytes of a value in the
+ *                         bootinfo line.  Don't forget to add space
+ *                         for the NUL if you need it.
+ * BOOTINFO_BUF_SIZE:      size in bytes of buffer that is large enough
+ *                         to read a /proc/bootinfo line.  The extra
+ *                         3 is for the " : ".  Don't forget to add
+ *                         space for the NUL and newline if you
+ *                         need them.
+ */
+#define BOOTINFO_MAX_NAME_LEN    32
+#define BOOTINFO_MAX_VAL_LEN    128
+#define BOOTINFO_BUF_SIZE       (BOOTINFO_MAX_NAME_LEN + \
+					3 + BOOTINFO_MAX_VAL_LEN)
+
+#endif
+
+
+#if defined(__KERNEL__) && defined(CONFIG_BOOTINFO)
+
+extern struct proc_dir_entry proc_root;
+
+u32  bi_powerup_reason(void);
+void bi_set_powerup_reason(u32 powerup_reason);
+
+u32  bi_mbm_version(void);
+void bi_set_mbm_version(u32 mbm_version);
+
+u32  bi_mbm_loader_version(void);
+void bi_set_mbm_loader_version(u32 mbm_loader_version);
+
+u32  bi_flat_dev_tree_address(void);
+void bi_set_flat_dev_tree_address(u32 flat_dev_tree_address);
+
+u16  bi_battery_status_at_boot(void);
+void bi_set_battery_status_at_boot(u16 battery_status_at_boot);
+
+u32  bi_cid_recover_boot(void);
+void bi_set_cid_recover_boot(u32 cid_recover_boot);
+
+#endif /* defined(__KERNEL__) && defined(CONFIG_BOOTINFO) */
+
+#endif

arch/arm/kernel/Makefile

@@ -59,6 +59,7 @@ obj-$(CONFIG_KGDB)		+= kgdb.o
 obj-$(CONFIG_ARM_UNWIND)	+= unwind.o
 obj-$(CONFIG_HAVE_TCM)		+= tcm.o
 obj-$(CONFIG_OF)		+= devtree.o
+obj-$(CONFIG_BOOTINFO)		+= bootinfo.o
 obj-$(CONFIG_CRASH_DUMP)	+= crash_dump.o
 obj-$(CONFIG_SPRD_SYSDUMP)  += sprd_sysdump.o
 obj-$(CONFIG_SWP_EMULATE)	+= swp_emulate.o