X-Git-Url: https://git.sur5r.net/?a=blobdiff_plain;f=drivers%2Fbootcount%2Fbootcount_davinci.c;h=fa87b5e7b948cc398fc413711ffea47be94a4bb4;hb=62118b7b0183d29755a101a6a5b88dee11c5f94b;hp=1cd943630a28107af9d834eecec24a203718dc3b;hpb=6e2fbdea1b26d75314d87c380a36b0015bf824cf;p=u-boot

diff --git a/drivers/bootcount/bootcount_davinci.c b/drivers/bootcount/bootcount_davinci.c
index 1cd943630a..fa87b5e7b9 100644
--- a/drivers/bootcount/bootcount_davinci.c
+++ b/drivers/bootcount/bootcount_davinci.c
@@ -2,24 +2,15 @@
  * (C) Copyright 2011
  * Heiko Schocher, DENX Software Engineering, hs@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.
+ * A bootcount driver for the RTC IP block found on many TI platforms.
+ * This requires the RTC clocks, etc, to be enabled prior to use and
+ * not all boards with this IP block on it will have the RTC in use.
  *
+ * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #include <bootcount.h>
-#include <asm/arch/da850_lowlevel.h>
-#include <asm/arch/davinci_misc.h>
+#include <asm/davinci_rtc.h>
 
 void bootcount_store(ulong a)
 {
@@ -33,17 +24,19 @@ void bootcount_store(ulong a)
 	 */
 	writel(RTC_KICK0R_WE, &reg->kick0r);
 	writel(RTC_KICK1R_WE, &reg->kick1r);
-	raw_bootcount_store(&reg->scratch0, a);
-	raw_bootcount_store(&reg->scratch1, BOOTCOUNT_MAGIC);
+	raw_bootcount_store(&reg->scratch2,
+			    (BOOTCOUNT_MAGIC & 0xffff0000) | (a & 0x0000ffff));
 }
 
 ulong bootcount_load(void)
 {
+	unsigned long val;
 	struct davinci_rtc *reg =
 		(struct davinci_rtc *)CONFIG_SYS_BOOTCOUNT_ADDR;
 
-	if (raw_bootcount_load(&reg->scratch1) != BOOTCOUNT_MAGIC)
+	val = raw_bootcount_load(&reg->scratch2);
+	if ((val & 0xffff0000) != (BOOTCOUNT_MAGIC & 0xffff0000))
 		return 0;
 	else
-		return raw_bootcount_load(&reg->scratch0);
+		return val & 0x0000ffff;
 }