Watchdog resets were experienced during autoboot delay. Petting the watchdog
during putc() and tstc() functions solve the issue.
Signed-off-by: Nicolas Ferre <nicolas.fe...@atmel.com>
---
drivers/serial/atmel_usart.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/drivers/serial/atmel_usart.c b/drivers/serial/atmel_usart.c
index cad3412..fcaee5d 100644
--- a/drivers/serial/atmel_usart.c
+++ b/drivers/serial/atmel_usart.c
@@ -80,7 +80,8 @@ void serial_putc(char c)
if (c == '\n')
serial_putc('\r');
- while (!(usart3_readl(CSR) & USART3_BIT(TXRDY))) ;
+ while (!(usart3_readl(CSR) & USART3_BIT(TXRDY)))
+ WATCHDOG_RESET();
usart3_writel(THR, c);
}
@@ -99,5 +100,6 @@ int serial_getc(void)
int serial_tstc(void)
{
+ WATCHDOG_RESET();
return (usart3_readl(CSR) & USART3_BIT(RXRDY)) != 0;
}
--
1.5.6.5
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