From: Paul Mundt <lethal@linux-sh.org>
To: Adrian McMenamin <lkmladrian@gmail.com>
Cc: linux-kernel@vger.kernel.org, linuxsh-dev@lists.sourceforge.net
Subject: Re: Fwd: [PATCH] Reboot Dreamcast under software control
Date: Mon, 30 Jul 2007 07:50:24 +0900 [thread overview]
Message-ID: <20070729225024.GA8039@linux-sh.org> (raw)
In-Reply-To: <8b67d60707291125o5c78d87dq59c842a9dac3e521@mail.gmail.com>
On Sun, Jul 29, 2007 at 07:25:21PM +0100, Adrian McMenamin wrote:
> diff --git a/arch/sh/kernel/process.c b/arch/sh/kernel/process.c
> index 6334a4c..6f5e9e4 100644
> --- a/arch/sh/kernel/process.c
> +++ b/arch/sh/kernel/process.c
> @@ -97,6 +97,11 @@ void cpu_idle(void)
>
> void machine_restart(char * __unused)
> {
> +
> +#ifdef CONFIG_SH_DREAMCAST
> + /*reboot the Dreamcast under software control*/
> + writel(0x00007611, 0xA05F6890);
> +#endif
> /* SR.BL=1 and invoke address error to let CPU reset (manual reset) */
> asm volatile("ldc %0, sr\n\t"
> "mov.l @%1, %0" : : "r" (0x10000000), "r" (0x80000001));
No, if you want to do this, at least use a function pointer and leave
this as the default implementation. The dreamcast presumably only needs
this magic write anyways, rather than the SR.BL trick.
next prev parent reply other threads:[~2007-07-29 22:51 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-29 18:04 [PATCH] Reboot Dreamcast under software control Adrian McMenamin
2007-07-29 18:25 ` Fwd: " Adrian McMenamin
2007-07-29 22:50 ` Paul Mundt [this message]
2007-07-29 23:05 ` Adrian McMenamin
2007-07-29 23:25 ` Paul Mundt
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