Applied. Thanks.
--Scott
Thomas Chou wrote:
> This patch adds an option to bypass output waiting when there
> is no jtag connection. This allows the jtag uart work similar
> to a serial uart, ie, boot even without connection.
>
> This option is enabled with,
>
> Signed-off-by: Thomas Chou <tho...@wytron.com.tw>
> ---
> follow the "Fix outx/writex parameter order in io.h" patch from Scott.
>
> drivers/serial/altera_jtag_uart.c | 12 ++++++++++--
> 1 files changed, 10 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/serial/altera_jtag_uart.c
> b/drivers/serial/altera_jtag_uart.c
> index fb28aa9..2980e4d 100644
> --- a/drivers/serial/altera_jtag_uart.c
> +++ b/drivers/serial/altera_jtag_uart.c
> @@ -38,8 +38,16 @@ int serial_init( void ) { return(0);}
>
> void serial_putc (char c)
> {
> - while (NIOS_JTAG_WSPACE ( readl (&jtag->control)) == 0)
> - WATCHDOG_RESET ();
> + while (1) {
> + unsigned st = readl(&jtag->control);
> + if (NIOS_JTAG_WSPACE(st))
> + break;
> +#ifdef CONFIG_ALTERA_JTAG_UART_BYPASS
> + if (!(st & NIOS_JTAG_AC)) /* no connection */
> + return;
> +#endif
> + WATCHDOG_RESET();
> + }
> writel ((unsigned char)c, &jtag->data);
> }
>
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