Hi Stefan,
On 01/14/2014 07:58 AM, Stefan Roese wrote:
Hi Valentin,
On 13.01.2014 17:29, Valentin Longchamp wrote:
From: Rainer Boschung rainer.boschung@keymile.com
- make use of the QRIO1 32bit register at 0x20 as bootcounter register
- check for BOOTCOUNT_MAGIC pattern when before bootcounter value is read
Signed-off-by: Rainer Boschung rainer.boschung@keymile.com Signed-off-by: Valentin Longchamp valentin.longchamp@keymile.com Acked-by: Valentin Longchamp valentin.longchamp@keymile.com
board/keymile/kmp204x/kmp204x.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-)
diff --git a/board/keymile/kmp204x/kmp204x.c b/board/keymile/kmp204x/kmp204x.c index f02642a..b41929a 100644 --- a/board/keymile/kmp204x/kmp204x.c +++ b/board/keymile/kmp204x/kmp204x.c @@ -134,22 +134,25 @@ void qrio_prstcfg(u8 bit, u8 mode) }
-#define BOOTCOUNT_OFF 0x12 +#define BOOTCOUNT_OFF 0x20
void bootcount_store(ulong counter) {
u8 val; void __iomem *qrio_base = (void *)CONFIG_SYS_QRIO_BASE;
val = (counter <= 255) ? (u8)counter : 255;
out_8(qrio_base + BOOTCOUNT_OFF, val);
- out_be32(qrio_base + BOOTCOUNT_OFF, counter);
}
ulong bootcount_load(void) {
- u8 val;
- u32 val; void __iomem *qrio_base = (void *)CONFIG_SYS_QRIO_BASE;
- val = in_8(qrio_base + BOOTCOUNT_OFF);
- val = in_be32(qrio_base + BOOTCOUNT_OFF + 4);
- if (val == BOOTCOUNT_MAGIC)
val = in_be32(qrio_base + BOOTCOUNT_OFF);- else
val = 0;}
Can't you just use the common bootcount driver (drivers/bootcount/bootcount.c) instead? Should be easy. Just define this in your config header:
#define CONFIG_BOOTCOUNT_LIMIT #define CONFIG_SYS_BOOTCOUNT_ADDR (CONFIG_SYS_QRIO_BASE + 0x20)
Thanks for the input, I will use this.
Best regards
Valentin