Consolidate bootcount code into drivers/bootcount

This patch moves all bootcount implementations into a common
directory: drivers/bootcount. The generic bootcount driver
is now usable not only by powerpc platforms, but others as well.

Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Heiko Schocher <hs@denx.de>
Cc: Valentin Longchamp <valentin.longchamp@keymile.com>
Cc: Christian Riesch <christian.riesch@omicron.at>
Cc: Manfred Rudigier <manfred.rudigier@omicron.at>
Cc: Mike Frysinger <vapier@gentoo.org>
Cc: Rob Herring <rob.herring@calxeda.com>
Cc: Reinhard Meyer <reinhard.meyer@emk-elektronik.de>
Tested-by: Valentin Longchamp <valentin.longchamp@keymile.com>
Tested-by: Christian Riesch <christian.riesch@omicron.at>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Mike Frysinger <vapier@gentoo.org>

5 files changed, 57 insertions, 0 deletions

diff --git a/include/bootcount.h b/include/bootcount.h
new file mode 100644
index 0000000000..3ec1aeccfd
--- /dev/null
+++ b/include/bootcount.h
@@ -0,0 +1,51 @@
+/*
+ * (C) Copyright 2012
+ * Stefan Roese, DENX Software Engineering, sr@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.
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/byteorder.h>
+
+#if !defined(CONFIG_SYS_BOOTCOUNT_LE) && !defined(CONFIG_SYS_BOOTCOUNT_BE)
+# if __BYTE_ORDER == __LITTLE_ENDIAN
+#  define CONFIG_SYS_BOOTCOUNT_LE
+# else
+#  define CONFIG_SYS_BOOTCOUNT_BE
+# endif
+#endif
+
+#ifdef CONFIG_SYS_BOOTCOUNT_LE
+static inline void raw_bootcount_store(volatile u32 *addr, u32 data)
+{
+	out_le32(addr, data);
+}
+
+static inline u32 raw_bootcount_load(volatile u32 *addr)
+{
+	return in_le32(addr);
+}
+#else
+static inline void raw_bootcount_store(volatile u32 *addr, u32 data)
+{
+	out_be32(addr, data);
+}
+
+static inline u32 raw_bootcount_load(volatile u32 *addr)
+{
+	return in_be32(addr);
+}
+#endif
diff --git a/include/configs/calimain.h b/include/configs/calimain.h
index e31e40b9fe..8141fd796f 100644
--- a/include/configs/calimain.h
+++ b/include/configs/calimain.h
@@ -352,6 +352,7 @@
 #define CONFIG_SYS_INIT_SP_ADDR		(0x8001ff00)
 
 #define CONFIG_BOOTCOUNT_LIMIT
+#define CONFIG_SYS_BOOTCOUNT_LE		/* Use little-endian accessors */
 #define CONFIG_SYS_BOOTCOUNT_ADDR	DAVINCI_RTC_BASE
 
 #ifndef __ASSEMBLY__
diff --git a/include/configs/enbw_cmc.h b/include/configs/enbw_cmc.h
index 3fc07e672a..b99492c05b 100644
--- a/include/configs/enbw_cmc.h
+++ b/include/configs/enbw_cmc.h
@@ -458,6 +458,7 @@
 
 #define CONFIG_BOOTCOUNT_LIMIT
 #define CONFIG_SYS_BOOTCOUNT_ADDR	DAVINCI_RTC_BASE
+#define CONFIG_SYS_BOOTCOUNT_BE
 
 #define CONFIG_SYS_NAND_U_BOOT_DST	0xc0080000
 #define CONFIG_SYS_NAND_U_BOOT_OFFS	0x60004000
diff --git a/include/configs/highbank.h b/include/configs/highbank.h
index 791f3f5468..897bc3937c 100644
--- a/include/configs/highbank.h
+++ b/include/configs/highbank.h
@@ -41,6 +41,8 @@
 #define CONFIG_BAUDRATE			38400
 
 #define CONFIG_BOOTCOUNT_LIMIT
+#define CONFIG_SYS_BOOTCOUNT_SINGLEWORD
+#define CONFIG_SYS_BOOTCOUNT_LE		/* Use little-endian accessors */
 #define CONFIG_SYS_BOOTCOUNT_ADDR	0xfff3cf0c
 
 #define CONFIG_MISC_INIT_R
diff --git a/include/configs/km/km_arm.h b/include/configs/km/km_arm.h
index 3aa5ca152c..0d5ecd5588 100644
--- a/include/configs/km/km_arm.h
+++ b/include/configs/km/km_arm.h
@@ -307,6 +307,8 @@ int get_scl(void);
 #define CONFIG_KM_RESERVED_PRAM 0x801000
 /* address for the bootcount (taken from end of RAM) */
 #define BOOTCOUNT_ADDR          (CONFIG_KM_RESERVED_PRAM)
+/* Use generic bootcount RAM driver */
+#define CONFIG_BOOTCOUNT_RAM
 
 /* enable POST tests */
 #define CONFIG_POST	(CONFIG_SYS_POST_MEM_REGIONS)