| To: | Thomas Bogendoerfer <tsbogend@alpha.franken.de> |
|---|---|
| Subject: | Re: [PATCH] Cobalt Qube1 has no serial port so don't use it |
| From: | Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp> |
| Date: | Sat, 12 Jan 2008 13:57:33 +0900 |
| Cc: | yoichi_yuasa@tripeaks.co.jp, linux-mips@linux-mips.org, ralf@linux-mips.org |
| In-reply-to: | <20080111232517.C7B9FC2F2B@solo.franken.de> |
| Organization: | TriPeaks Corporation |
| Original-recipient: | rfc822;linux-mips@linux-mips.org |
| References: | <20080111232517.C7B9FC2F2B@solo.franken.de> |
| Sender: | linux-mips-bounce@linux-mips.org |
On Sat, 12 Jan 2008 00:25:17 +0100 (CET)
Thomas Bogendoerfer <tsbogend@alpha.franken.de> wrote:
> Because Qube1 doesn't have a serial chip waiting for transmit fifo empty
> takes forever, which isn't a good idea. No prom_putchar/early console
> for Qube1 fixes this.
>
> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Acked-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
> ---
>
> arch/mips/cobalt/console.c | 5 +++++
> 1 files changed, 5 insertions(+), 0 deletions(-)
>
> diff --git a/arch/mips/cobalt/console.c b/arch/mips/cobalt/console.c
> index db330e8..d1ba701 100644
> --- a/arch/mips/cobalt/console.c
> +++ b/arch/mips/cobalt/console.c
> @@ -4,10 +4,15 @@
> #include <linux/io.h>
> #include <linux/serial_reg.h>
>
> +#include <cobalt.h>
> +
> #define UART_BASE ((void __iomem *)CKSEG1ADDR(0x1c800000))
>
> void prom_putchar(char c)
> {
> + if (cobalt_board_id <= COBALT_BRD_ID_QUBE1)
> + return;
> +
> while (!(readb(UART_BASE + UART_LSR) & UART_LSR_THRE))
> ;
>
>
|
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