[U-Boot] [PATCH v4] Consolidate bootcount code into drivers/bootcount
Stefan Roese
sr at denx.de
Mon Aug 13 13:56:03 CEST 2012
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 at denx.de>
Cc: Heiko Schocher <hs at denx.de>
Cc: Valentin Longchamp <valentin.longchamp at keymile.com>
Cc: Christian Riesch <christian.riesch at omicron.at>
Cc: Manfred Rudigier <manfred.rudigier at omicron.at>
Cc: Mike Frysinger <vapier at gentoo.org>
Cc: Rob Herring <rob.herring at calxeda.com>
Cc: Reinhard Meyer <reinhard.meyer at emk-elektronik.de>
Tested-by: Valentin Longchamp <valentin.longchamp at keymile.com>
Tested-by: Christian Riesch <christian.riesch at omicron.at>
Acked-by: Rob Herring <rob.herring at calxeda.com>
---
v4:
- Rebased against TOT
- Addressed Mike's comments
v3:
- Moved le-/be-accessors into header so that they now can be
used by all bootcount drivers.
- Changed CONFIG_BOOTCOUNT_LE to CONFIG_SYS_BOOTCOUNT_LE
- Enabled CONFIG_SYS_BOOTCOUNT_LE in highbank
- Enabled CONFIG_SYS_BOOTCOUNT_SINGLEWORD in highbank
v2:
- Added CONFIG_BOOTCOUNT_LE to bootcount_davinci.c and enabled it
in calimain.h to select little-endian accessors.
Makefile | 1 +
arch/arm/cpu/arm926ejs/at91/cpu.c | 26 --------
arch/arm/cpu/armv7/highbank/Makefile | 2 +-
arch/arm/cpu/armv7/highbank/bootcount.c | 36 -----------
arch/arm/cpu/ixp/cpu.c | 22 -------
arch/powerpc/lib/Makefile | 1 -
board/enbw/enbw_cmc/enbw_cmc.c | 29 ---------
board/keymile/km_arm/km_arm.c | 51 ---------------
board/omicron/calimain/calimain.c | 29 ---------
drivers/bootcount/Makefile | 45 ++++++++++++++
.../powerpc/lib => drivers/bootcount}/bootcount.c | 25 ++++----
drivers/bootcount/bootcount_at91.c | 43 +++++++++++++
.../bootcount/bootcount_blackfin.c | 0
drivers/bootcount/bootcount_davinci.c | 49 +++++++++++++++
drivers/bootcount/bootcount_ram.c | 72 ++++++++++++++++++++++
include/bootcount.h | 51 +++++++++++++++
include/configs/calimain.h | 1 +
include/configs/enbw_cmc.h | 1 +
include/configs/highbank.h | 2 +
include/configs/km/km_arm.h | 2 +
20 files changed, 282 insertions(+), 206 deletions(-)
delete mode 100644 arch/arm/cpu/armv7/highbank/bootcount.c
create mode 100644 drivers/bootcount/Makefile
rename {arch/powerpc/lib => drivers/bootcount}/bootcount.c (82%)
create mode 100644 drivers/bootcount/bootcount_at91.c
rename arch/blackfin/cpu/bootcount.c => drivers/bootcount/bootcount_blackfin.c (100%)
create mode 100644 drivers/bootcount/bootcount_davinci.c
create mode 100644 drivers/bootcount/bootcount_ram.c
create mode 100644 include/bootcount.h
diff --git a/Makefile b/Makefile
index 5ce5cc3..2b662b4 100644
--- a/Makefile
+++ b/Makefile
@@ -249,6 +249,7 @@ LIBS-y += net/libnet.o
LIBS-y += disk/libdisk.o
LIBS-y += drivers/bios_emulator/libatibiosemu.o
LIBS-y += drivers/block/libblock.o
+LIBS-$(CONFIG_BOOTCOUNT_LIMIT) += drivers/bootcount/libbootcount.o
LIBS-y += drivers/dma/libdma.o
LIBS-y += drivers/fpga/libfpga.o
LIBS-y += drivers/gpio/libgpio.o
diff --git a/arch/arm/cpu/arm926ejs/at91/cpu.c b/arch/arm/cpu/arm926ejs/at91/cpu.c
index c47fb31..5cf4fad 100644
--- a/arch/arm/cpu/arm926ejs/at91/cpu.c
+++ b/arch/arm/cpu/arm926ejs/at91/cpu.c
@@ -71,29 +71,3 @@ int print_cpuinfo(void)
return 0;
}
#endif
-
-#ifdef CONFIG_BOOTCOUNT_LIMIT
-/*
- * We combine the BOOTCOUNT_MAGIC and bootcount in one 32-bit register.
- * This is done so we need to use only one of the four GPBR registers.
- */
-void bootcount_store (ulong a)
-{
- at91_gpbr_t *gpbr = (at91_gpbr_t *) ATMEL_BASE_GPBR;
-
- writel((BOOTCOUNT_MAGIC & 0xffff0000) | (a & 0x0000ffff),
- &gpbr->reg[AT91_GPBR_INDEX_BOOTCOUNT]);
-}
-
-ulong bootcount_load (void)
-{
- at91_gpbr_t *gpbr = (at91_gpbr_t *) ATMEL_BASE_GPBR;
-
- ulong val = readl(&gpbr->reg[AT91_GPBR_INDEX_BOOTCOUNT]);
- if ((val & 0xffff0000) != (BOOTCOUNT_MAGIC & 0xffff0000))
- return 0;
- else
- return val & 0x0000ffff;
-}
-
-#endif /* CONFIG_BOOTCOUNT_LIMIT */
diff --git a/arch/arm/cpu/armv7/highbank/Makefile b/arch/arm/cpu/armv7/highbank/Makefile
index 917c3a3..76faeb0 100644
--- a/arch/arm/cpu/armv7/highbank/Makefile
+++ b/arch/arm/cpu/armv7/highbank/Makefile
@@ -25,7 +25,7 @@ include $(TOPDIR)/config.mk
LIB = $(obj)lib$(SOC).o
-COBJS := timer.o bootcount.o
+COBJS := timer.o
SOBJS :=
SRCS := $(SOBJS:.o=.S) $(COBJS:.o=.c)
diff --git a/arch/arm/cpu/armv7/highbank/bootcount.c b/arch/arm/cpu/armv7/highbank/bootcount.c
deleted file mode 100644
index 9ca0656..0000000
--- a/arch/arm/cpu/armv7/highbank/bootcount.c
+++ /dev/null
@@ -1,36 +0,0 @@
-/*
- * Copyright 2011 Calxeda, 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 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, see <http://www.gnu.org/licenses/>.
- */
-
-#include <common.h>
-#include <asm/io.h>
-
-#ifdef CONFIG_BOOTCOUNT_LIMIT
-void bootcount_store(ulong a)
-{
- writel((BOOTCOUNT_MAGIC & 0xffff0000) | a, CONFIG_SYS_BOOTCOUNT_ADDR);
-}
-
-ulong bootcount_load(void)
-{
- u32 tmp = readl(CONFIG_SYS_BOOTCOUNT_ADDR);
-
- if ((tmp & 0xffff0000) != (BOOTCOUNT_MAGIC & 0xffff0000))
- return 0;
- else
- return tmp & 0x0000ffff;
-}
-#endif
diff --git a/arch/arm/cpu/ixp/cpu.c b/arch/arm/cpu/ixp/cpu.c
index 942845d..f1864d6 100644
--- a/arch/arm/cpu/ixp/cpu.c
+++ b/arch/arm/cpu/ixp/cpu.c
@@ -107,28 +107,6 @@ void pci_init(void)
}
*/
-#ifdef CONFIG_BOOTCOUNT_LIMIT
-
-void bootcount_store (ulong a)
-{
- volatile ulong *save_addr = (volatile ulong *)(CONFIG_SYS_BOOTCOUNT_ADDR);
-
- save_addr[0] = a;
- save_addr[1] = BOOTCOUNT_MAGIC;
-}
-
-ulong bootcount_load (void)
-{
- volatile ulong *save_addr = (volatile ulong *)(CONFIG_SYS_BOOTCOUNT_ADDR);
-
- if (save_addr[1] != BOOTCOUNT_MAGIC)
- return 0;
- else
- return save_addr[0];
-}
-
-#endif /* CONFIG_BOOTCOUNT_LIMIT */
-
int cpu_eth_init(bd_t *bis)
{
#ifdef CONFIG_IXP4XX_NPE
diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
index cdd62a2..965f9ea 100644
--- a/arch/powerpc/lib/Makefile
+++ b/arch/powerpc/lib/Makefile
@@ -46,7 +46,6 @@ SOBJS-y += reloc.o
COBJS-$(CONFIG_BAT_RW) += bat_rw.o
COBJS-y += board.o
COBJS-y += bootm.o
-COBJS-$(CONFIG_BOOTCOUNT_LIMIT) += bootcount.o
COBJS-y += cache.o
COBJS-y += extable.o
COBJS-y += interrupts.o
diff --git a/board/enbw/enbw_cmc/enbw_cmc.c b/board/enbw/enbw_cmc/enbw_cmc.c
index 0874e9c..67d5d4d 100644
--- a/board/enbw/enbw_cmc/enbw_cmc.c
+++ b/board/enbw/enbw_cmc/enbw_cmc.c
@@ -778,35 +778,6 @@ void arch_memory_failure_handle(void)
}
#endif
-#if defined(CONFIG_BOOTCOUNT_LIMIT)
-void bootcount_store(ulong a)
-{
- struct davinci_rtc *reg =
- (struct davinci_rtc *)CONFIG_SYS_BOOTCOUNT_ADDR;
-
- /*
- * write RTC kick register to enable write
- * for RTC Scratch registers. Scratch0 and 1 are
- * used for bootcount values.
- */
- writel(RTC_KICK0R_WE, ®->kick0r);
- writel(RTC_KICK1R_WE, ®->kick1r);
- out_be32(®->scratch0, a);
- out_be32(®->scratch1, BOOTCOUNT_MAGIC);
-}
-
-ulong bootcount_load(void)
-{
- struct davinci_rtc *reg =
- (struct davinci_rtc *)CONFIG_SYS_BOOTCOUNT_ADDR;
-
- if (in_be32(®->scratch1) != BOOTCOUNT_MAGIC)
- return 0;
- else
- return in_be32(®->scratch0);
-}
-#endif
-
ulong post_word_load(void)
{
struct davinci_rtc *reg =
diff --git a/board/keymile/km_arm/km_arm.c b/board/keymile/km_arm/km_arm.c
index 2b2ca39..930c80e 100644
--- a/board/keymile/km_arm/km_arm.c
+++ b/board/keymile/km_arm/km_arm.c
@@ -408,57 +408,6 @@ int hush_init_var(void)
}
#endif
-#if defined(CONFIG_BOOTCOUNT_LIMIT)
-const ulong patterns[] = { 0x00000000,
- 0xFFFFFFFF,
- 0xFF00FF00,
- 0x0F0F0F0F,
- 0xF0F0F0F0};
-const ulong NBR_OF_PATTERNS = ARRAY_SIZE(patterns);
-const ulong OFFS_PATTERN = 3;
-const ulong REPEAT_PATTERN = 1000;
-
-void bootcount_store(ulong a)
-{
- ulong *save_addr;
- ulong size = 0;
- int i;
-
- for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
- size += gd->bd->bi_dram[i].size;
- save_addr = (ulong *)(size - BOOTCOUNT_ADDR);
- writel(a, save_addr);
- writel(BOOTCOUNT_MAGIC, &save_addr[1]);
-
- for (i = 0; i < REPEAT_PATTERN; i++)
- writel(patterns[i % NBR_OF_PATTERNS],
- &save_addr[i+OFFS_PATTERN]);
-
-}
-
-ulong bootcount_load(void)
-{
- ulong *save_addr;
- ulong size = 0;
- ulong counter = 0;
- int i, tmp;
-
- for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
- size += gd->bd->bi_dram[i].size;
- save_addr = (ulong *)(size - BOOTCOUNT_ADDR);
-
- counter = readl(&save_addr[0]);
-
- /* Is the counter reliable, check in the big pattern for bit errors */
- for (i = 0; (i < REPEAT_PATTERN) && (counter != 0); i++) {
- tmp = readl(&save_addr[i+OFFS_PATTERN]);
- if (tmp != patterns[i % NBR_OF_PATTERNS])
- counter = 0;
- }
- return counter;
-}
-#endif
-
#if defined(CONFIG_SOFT_I2C)
void set_sda(int state)
{
diff --git a/board/omicron/calimain/calimain.c b/board/omicron/calimain/calimain.c
index 54415ce..1060a1f 100644
--- a/board/omicron/calimain/calimain.c
+++ b/board/omicron/calimain/calimain.c
@@ -157,32 +157,3 @@ void hw_watchdog_reset(void)
davinci_hw_watchdog_reset();
}
#endif
-
-#if defined(CONFIG_BOOTCOUNT_LIMIT)
-void bootcount_store(ulong a)
-{
- struct davinci_rtc *reg =
- (struct davinci_rtc *)CONFIG_SYS_BOOTCOUNT_ADDR;
-
- /*
- * write RTC kick register to enable write
- * for RTC Scratch registers. Scratch0 and 1 are
- * used for bootcount values.
- */
- writel(RTC_KICK0R_WE, ®->kick0r);
- writel(RTC_KICK1R_WE, ®->kick1r);
- writel(a, ®->scratch0);
- writel(BOOTCOUNT_MAGIC, ®->scratch1);
-}
-
-ulong bootcount_load(void)
-{
- struct davinci_rtc *reg =
- (struct davinci_rtc *)CONFIG_SYS_BOOTCOUNT_ADDR;
-
- if (readl(®->scratch1) != BOOTCOUNT_MAGIC)
- return 0;
- else
- return readl(®->scratch0);
-}
-#endif
diff --git a/drivers/bootcount/Makefile b/drivers/bootcount/Makefile
new file mode 100644
index 0000000..a8d0ac7
--- /dev/null
+++ b/drivers/bootcount/Makefile
@@ -0,0 +1,45 @@
+#
+# 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
+#
+
+include $(TOPDIR)/config.mk
+
+LIB := $(obj)libbootcount.o
+
+COBJS-y += bootcount.o
+COBJS-$(CONFIG_AT91SAM9XE) += bootcount_at91.o
+COBJS-$(CONFIG_BLACKFIN) += bootcount_blackfin.o
+COBJS-$(CONFIG_SOC_DA8XX) += bootcount_davinci.o
+COBJS-$(CONFIG_BOOTCOUNT_RAM) += bootcount_ram.o
+
+COBJS := $(COBJS-y)
+SRCS := $(COBJS:.o=.c)
+OBJS := $(addprefix $(obj),$(COBJS))
+
+$(LIB): $(obj).depend $(OBJS)
+ $(call cmd_link_o_target, $(OBJS))
+
+#########################################################################
+
+# defines $(obj).depend target
+include $(SRCTREE)/rules.mk
+
+sinclude $(obj).depend
+
+########################################################################
diff --git a/arch/powerpc/lib/bootcount.c b/drivers/bootcount/bootcount.c
similarity index 82%
rename from arch/powerpc/lib/bootcount.c
rename to drivers/bootcount/bootcount.c
index f9ce539..80eb717 100644
--- a/arch/powerpc/lib/bootcount.c
+++ b/drivers/bootcount/bootcount.c
@@ -1,5 +1,5 @@
/*
- * (C) Copyright 2010
+ * (C) Copyright 2010-2012
* Stefan Roese, DENX Software Engineering, sr at denx.de.
*
* See file CREDITS for list of people who contributed to this
@@ -21,8 +21,8 @@
* MA 02111-1307 USA
*/
-#include <common.h>
-#include <asm/io.h>
+#include <bootcount.h>
+#include <linux/compiler.h>
/*
* Only override CONFIG_SYS_BOOTCOUNT_ADDR if not already defined. This
@@ -65,33 +65,36 @@
#endif /* !defined(CONFIG_SYS_BOOTCOUNT_ADDR) */
-void bootcount_store(ulong a)
+/* Now implement the generic default functions */
+#if defined(CONFIG_SYS_BOOTCOUNT_ADDR)
+__weak void bootcount_store(ulong a)
{
void *reg = (void *)CONFIG_SYS_BOOTCOUNT_ADDR;
#if defined(CONFIG_SYS_BOOTCOUNT_SINGLEWORD)
- out_be32(reg, (BOOTCOUNT_MAGIC & 0xffff0000) | a);
+ raw_bootcount_store(reg, (BOOTCOUNT_MAGIC & 0xffff0000) | a);
#else
- out_be32(reg, a);
- out_be32(reg + 4, BOOTCOUNT_MAGIC);
+ raw_bootcount_store(reg, a);
+ raw_bootcount_store(reg + 4, BOOTCOUNT_MAGIC);
#endif
}
-ulong bootcount_load(void)
+__weak ulong bootcount_load(void)
{
void *reg = (void *)CONFIG_SYS_BOOTCOUNT_ADDR;
#if defined(CONFIG_SYS_BOOTCOUNT_SINGLEWORD)
- u32 tmp = in_be32(reg);
+ u32 tmp = raw_bootcount_load(reg);
if ((tmp & 0xffff0000) != (BOOTCOUNT_MAGIC & 0xffff0000))
return 0;
else
return (tmp & 0x0000ffff);
#else
- if (in_be32(reg + 4) != BOOTCOUNT_MAGIC)
+ if (raw_bootcount_load(reg + 4) != BOOTCOUNT_MAGIC)
return 0;
else
- return in_be32(reg);
+ return raw_bootcount_load(reg);
#endif
}
+#endif
diff --git a/drivers/bootcount/bootcount_at91.c b/drivers/bootcount/bootcount_at91.c
new file mode 100644
index 0000000..7cfe14d
--- /dev/null
+++ b/drivers/bootcount/bootcount_at91.c
@@ -0,0 +1,43 @@
+/*
+ * 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/arch/hardware.h>
+#include <asm/arch/at91_gpbr.h>
+
+/*
+ * We combine the BOOTCOUNT_MAGIC and bootcount in one 32-bit register.
+ * This is done so we need to use only one of the four GPBR registers.
+ */
+void bootcount_store(ulong a)
+{
+ at91_gpbr_t *gpbr = (at91_gpbr_t *) ATMEL_BASE_GPBR;
+
+ writel((BOOTCOUNT_MAGIC & 0xffff0000) | (a & 0x0000ffff),
+ &gpbr->reg[AT91_GPBR_INDEX_BOOTCOUNT]);
+}
+
+ulong bootcount_load(void)
+{
+ at91_gpbr_t *gpbr = (at91_gpbr_t *) ATMEL_BASE_GPBR;
+
+ ulong val = readl(&gpbr->reg[AT91_GPBR_INDEX_BOOTCOUNT]);
+ if ((val & 0xffff0000) != (BOOTCOUNT_MAGIC & 0xffff0000))
+ return 0;
+ else
+ return val & 0x0000ffff;
+}
diff --git a/arch/blackfin/cpu/bootcount.c b/drivers/bootcount/bootcount_blackfin.c
similarity index 100%
rename from arch/blackfin/cpu/bootcount.c
rename to drivers/bootcount/bootcount_blackfin.c
diff --git a/drivers/bootcount/bootcount_davinci.c b/drivers/bootcount/bootcount_davinci.c
new file mode 100644
index 0000000..1cd9436
--- /dev/null
+++ b/drivers/bootcount/bootcount_davinci.c
@@ -0,0 +1,49 @@
+/*
+ * (C) Copyright 2011
+ * Heiko Schocher, DENX Software Engineering, hs at 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 <bootcount.h>
+#include <asm/arch/da850_lowlevel.h>
+#include <asm/arch/davinci_misc.h>
+
+void bootcount_store(ulong a)
+{
+ struct davinci_rtc *reg =
+ (struct davinci_rtc *)CONFIG_SYS_BOOTCOUNT_ADDR;
+
+ /*
+ * write RTC kick register to enable write
+ * for RTC Scratch registers. Scratch0 and 1 are
+ * used for bootcount values.
+ */
+ writel(RTC_KICK0R_WE, ®->kick0r);
+ writel(RTC_KICK1R_WE, ®->kick1r);
+ raw_bootcount_store(®->scratch0, a);
+ raw_bootcount_store(®->scratch1, BOOTCOUNT_MAGIC);
+}
+
+ulong bootcount_load(void)
+{
+ struct davinci_rtc *reg =
+ (struct davinci_rtc *)CONFIG_SYS_BOOTCOUNT_ADDR;
+
+ if (raw_bootcount_load(®->scratch1) != BOOTCOUNT_MAGIC)
+ return 0;
+ else
+ return raw_bootcount_load(®->scratch0);
+}
diff --git a/drivers/bootcount/bootcount_ram.c b/drivers/bootcount/bootcount_ram.c
new file mode 100644
index 0000000..8655af7
--- /dev/null
+++ b/drivers/bootcount/bootcount_ram.c
@@ -0,0 +1,72 @@
+/*
+ * (C) Copyright 2010
+ * Heiko Schocher, DENX Software Engineering, hs at 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>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+const ulong patterns[] = { 0x00000000,
+ 0xFFFFFFFF,
+ 0xFF00FF00,
+ 0x0F0F0F0F,
+ 0xF0F0F0F0};
+const ulong NBR_OF_PATTERNS = sizeof(patterns) / sizeof(*patterns);
+const ulong OFFS_PATTERN = 3;
+const ulong REPEAT_PATTERN = 1000;
+
+void bootcount_store(ulong a)
+{
+ ulong *save_addr;
+ ulong size = 0;
+ int i;
+
+ for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
+ size += gd->bd->bi_dram[i].size;
+ save_addr = (ulong *)(size - BOOTCOUNT_ADDR);
+ writel(a, save_addr);
+ writel(BOOTCOUNT_MAGIC, &save_addr[1]);
+
+ for (i = 0; i < REPEAT_PATTERN; i++)
+ writel(patterns[i % NBR_OF_PATTERNS],
+ &save_addr[i + OFFS_PATTERN]);
+
+}
+
+ulong bootcount_load(void)
+{
+ ulong *save_addr;
+ ulong size = 0;
+ ulong counter = 0;
+ int i, tmp;
+
+ for (i = 0; i < CONFIG_NR_DRAM_BANKS; i++)
+ size += gd->bd->bi_dram[i].size;
+ save_addr = (ulong *)(size - BOOTCOUNT_ADDR);
+
+ counter = readl(&save_addr[0]);
+
+ /* Is the counter reliable, check in the big pattern for bit errors */
+ for (i = 0; (i < REPEAT_PATTERN) && (counter != 0); i++) {
+ tmp = readl(&save_addr[i + OFFS_PATTERN]);
+ if (tmp != patterns[i % NBR_OF_PATTERNS])
+ counter = 0;
+ }
+ return counter;
+}
diff --git a/include/bootcount.h b/include/bootcount.h
new file mode 100644
index 0000000..3ec1aec
--- /dev/null
+++ b/include/bootcount.h
@@ -0,0 +1,51 @@
+/*
+ * (C) Copyright 2012
+ * Stefan Roese, DENX Software Engineering, sr at 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 e31e40b..8141fd7 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 3fc07e6..b99492c 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 791f3f5..897bc39 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 3aa5ca1..0d5ecd5 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)
--
1.7.11.3
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