linux-kernel - Re: [PATCH 4/5] Removing dead CONFIG_SERIAL_TEXT

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Message-ID: <20100609102815.GG7801@zod.rchland.ibm.com>
Date:	Wed, 9 Jun 2010 06:28:15 -0400
From:	Josh Boyer <jwboyer@...ux.vnet.ibm.com>
To:	Christoph Egger <siccegge@...fau.de>
Cc:	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Paul Mackerras <paulus@...ba.org>, linuxppc-dev@...abs.org,
	linux-kernel@...r.kernel.org, vamos@...informatik.uni-erlangen.de
Subject: Re: [PATCH 4/5] Removing dead CONFIG_SERIAL_TEXT_DEBUG

On Wed, Jun 09, 2010 at 12:00:46PM +0200, Christoph Egger wrote:
>CONFIG_SERIAL_TEXT_DEBUG doesn't exist in Kconfig, therefore removing all
>references for it from the source code.
>
>Signed-off-by: Christoph Egger <siccegge@...fau.de>

It would be better to conver this to work with CONFIG_PPC_EARLY_DEBUG and
CONFIG_PPC_EARLY_DEBUG_40x.  I'd rather just leave this for now until we can
get it switched over.

josh

>---
> arch/powerpc/kernel/head_40x.S |   19 -------------------
> 1 files changed, 0 insertions(+), 19 deletions(-)
>
>diff --git a/arch/powerpc/kernel/head_40x.S b/arch/powerpc/kernel/head_40x.S
>index a90625f..1a10e4d 100644
>--- a/arch/powerpc/kernel/head_40x.S
>+++ b/arch/powerpc/kernel/head_40x.S
>@@ -939,25 +939,6 @@ initial_mmu:
> 	tlbwe	r4,r0,TLB_DATA		/* Load the data portion of the entry */
> 	tlbwe	r3,r0,TLB_TAG		/* Load the tag portion of the entry */
>
>-#if defined(CONFIG_SERIAL_TEXT_DEBUG) && defined(SERIAL_DEBUG_IO_BASE)
>-
>-	/* Load a TLB entry for the UART, so that ppc4xx_progress() can use
>-	 * the UARTs nice and early.  We use a 4k real==virtual mapping. */
>-
>-	lis	r3,SERIAL_DEBUG_IO_BASE@h
>-	ori	r3,r3,SERIAL_DEBUG_IO_BASE@l
>-	mr	r4,r3
>-	clrrwi	r4,r4,12
>-	ori	r4,r4,(TLB_WR|TLB_I|TLB_M|TLB_G)
>-
>-	clrrwi	r3,r3,12
>-	ori	r3,r3,(TLB_VALID | TLB_PAGESZ(PAGESZ_4K))
>-
>-	li	r0,0			/* TLB slot 0 */
>-	tlbwe	r4,r0,TLB_DATA
>-	tlbwe	r3,r0,TLB_TAG
>-#endif /* CONFIG_SERIAL_DEBUG_TEXT && SERIAL_DEBUG_IO_BASE */
>-
> 	isync
>
> 	/* Establish the exception vector base
>-- 
>1.6.3.3
>
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>Linuxppc-dev@...ts.ozlabs.org
>https://lists.ozlabs.org/listinfo/linuxppc-dev
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