mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-16 09:48:16 +00:00
0044c42e94
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>
49 lines
1.4 KiB
C
49 lines
1.4 KiB
C
/*
|
|
* (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.
|
|
*
|
|
*/
|
|
|
|
#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);
|
|
}
|