From: Rainer Boschung <rainer.bosch...@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.bosch...@keymile.com>
Signed-off-by: Valentin Longchamp <valentin.longch...@keymile.com>
Acked-by: Valentin Longchamp <valentin.longch...@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;
return val;
}
--
1.8.0.1
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