From mboxrd@z Thu Jan 1 00:00:00 1970 From: Benjamin Herrenschmidt Subject: Re: RFC Patch: Use x86 init_hwif in the alim15x3 for x86-like PowerPC systems Date: Fri, 17 Apr 2009 09:40:19 +0200 Message-ID: <1239954019.7443.47.camel@pasglop> References: <200904162130.01237.bzolnier@gmail.com> Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Return-path: Received: from gate.crashing.org ([63.228.1.57]:35911 "EHLO gate.crashing.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753228AbZDQHkb (ORCPT ); Fri, 17 Apr 2009 03:40:31 -0400 In-Reply-To: <200904162130.01237.bzolnier@gmail.com> Sender: linux-ide-owner@vger.kernel.org List-Id: linux-ide@vger.kernel.org To: Bartlomiej Zolnierkiewicz Cc: Roderick Colenbrander , linux-ide@vger.kernel.org, linuxppc-dev@ozlabs.org On Thu, 2009-04-16 at 21:30 +0200, Bartlomiej Zolnierkiewicz wrote: > Hi, > > On Wednesday 15 April 2009 16:34:22 Roderick Colenbrander wrote: > > Hi, > > > > I'm using a Xilinx ML510 it features a PowerPC 440 cpu inside a > > Virtex-5 FPGA. The board also contains a ALI M1533 south bridge > > for IDE, USB and Audio. I did a lot of work to get the pci bus working > > on this board and it works correctly but the default init code > > of the alim15x3 driver doesn't work for me. The driver explicitly > > disabled some initialization code for powerpc after uncommenting this > > code it works properly. Benjamin Herrenschmidt and I think this > > !CONFIG_PPC check should be removed because the system behaves > > like a real 'x86' system (also the i8259 interrupt controller is used). > > Ben, I guess you are OK with the change and there are no longer other > platforms requiring CONFIG_PPC check below? [I don't see your ACK here] Yup. I don't see a case where the hack would be of any use, so I'm happy to remove us from the test. Whenever a 8259 is present we assign it the legacy interrupts 1...15 with a virtual==physical mapping so all those x86-ish things should run just fine. Acked-by: Benjamin Herrenschmidt > > Regards, > > Roderick Colenbrander > > > > > > From 1c40c2f1485ecd3bc5ad7a3af537cb94de0877c3 Mon Sep 17 00:00:00 2001 > > From: Roderick Colenbrander > > Date: Wed, 15 Apr 2009 10:45:17 +0200 > > Subject: [PATCH] Use the 'x86' init_hwif code in the alim15x3 for > > x86-like PowerPC boards like Xilinx ML310/410/510. > > Roderick, please add your "Signed-off-by:" line > (per Documentation/SubmittingPatches). > > Thanks. > > > --- > > drivers/ide/alim15x3.c | 9 +++++---- > > 1 files changed, 5 insertions(+), 4 deletions(-) > > > > diff --git a/drivers/ide/alim15x3.c b/drivers/ide/alim15x3.c > > index 537da1c..9176c0f 100644 > > --- a/drivers/ide/alim15x3.c > > +++ b/drivers/ide/alim15x3.c > > @@ -402,14 +402,15 @@ static u8 ali_cable_detect(ide_hwif_t *hwif) > > return cbl; > > } > > > > -#if !defined(CONFIG_SPARC64) && !defined(CONFIG_PPC) > > +#if !defined(CONFIG_SPARC64) > > /** > > * init_hwif_ali15x3 - Initialize the ALI IDE x86 stuff > > * @hwif: interface to configure > > * > > * Obtain the IRQ tables for an ALi based IDE solution on the PC > > - * class platforms. This part of the code isn't applicable to the > > - * Sparc and PowerPC systems. > > + * class platforms. This part of the code isn't applicable to > > + * Sparc systems. It is usable on 'x86-like' PowerPC systems > > + * which use a Ali M15x3 south bridge like e.g. Xilinx ML310/410/510. > > */ > > > > static void __devinit init_hwif_ali15x3 (ide_hwif_t *hwif) > > @@ -455,7 +456,7 @@ static void __devinit init_hwif_ali15x3 (ide_hwif_t *hwif) > > } > > #else > > #define init_hwif_ali15x3 NULL > > -#endif /* !defined(CONFIG_SPARC64) && !defined(CONFIG_PPC) */ > > +#endif /* !defined(CONFIG_SPARC64) */ > > > > /** > > * init_dma_ali15x3 - set up DMA on ALi15x3 > > -- > > 1.5.6.3