mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-26 22:52:18 +00:00
1a4596601f
Signed-off-by: Wolfgang Denk <wd@denx.de> [trini: Fixup common/cmd_io.c] Signed-off-by: Tom Rini <trini@ti.com>
37 lines
877 B
C
37 lines
877 B
C
/*
|
|
* (C) Copyright 2011
|
|
* Heiko Schocher, DENX Software Engineering, hs@denx.de.
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*/
|
|
|
|
#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);
|
|
}
|