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From: Brian Norris <computersforpeace@gmail.com>
To: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Cc: Antoine Tenart <antoine.tenart@free-electrons.com>,
	sebastian.hesselbarth@gmail.com, dwmw2@infradead.org,
	thomas.petazzoni@free-electrons.com, zmxu@marvell.com,
	jszhang@marvell.com, linux-arm-kernel@lists.infradead.org,
	linux-mtd@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 5/9] mtd: pxa3xx_nand: add support for the Marvell Berlin nand controller
Date: Thu, 5 Feb 2015 17:25:28 -0800	[thread overview]
Message-ID: <20150206012528.GD30781@ld-irv-0074> (raw)
In-Reply-To: <54C7A3C0.6020507@free-electrons.com>

On Tue, Jan 27, 2015 at 11:42:08AM -0300, Ezequiel Garcia wrote:
> On 01/27/2015 11:10 AM, Antoine Tenart wrote:
> > --- a/drivers/mtd/nand/pxa3xx_nand.c
> > +++ b/drivers/mtd/nand/pxa3xx_nand.c
...
> > @@ -244,10 +254,13 @@ module_param(use_dma, bool, 0444);
> >  MODULE_PARM_DESC(use_dma, "enable DMA for data transferring to/from NAND HW");
> >  
> >  static struct pxa3xx_nand_timing timing[] = {
> > -	{ 40, 80, 60, 100, 80, 100, 90000, 400, 40, },
> > -	{ 10,  0, 20,  40, 30,  40, 11123, 110, 10, },
> > -	{ 10, 25, 15,  25, 15,  30, 25000,  60, 10, },
> > -	{ 10, 35, 15,  25, 15,  25, 25000,  60, 10, },
> > +	{ 40, 80, 60, 100, 80, 100,  90000, 400, 40, },
> > +	{ 10,  0, 20,  40, 30,  40,  11123, 110, 10, },
> > +	{ 10, 25, 15,  25, 15,  30,  25000,  60, 10, },
> > +	{ 10, 35, 15,  25, 15,  25,  25000,  60, 10, },
> > +	{  5, 20, 10,  12, 10,  12,  60000,  60, 10, },
> > +	{  5, 20, 10,  12, 10,  12, 200000, 120, 10, },
> > +	{  5, 15, 10,  15, 10,  15,  60000,  60, 10, },
> >  };
> >  
> >  static struct pxa3xx_nand_flash builtin_flash_types[] = {
> > @@ -260,6 +273,20 @@ static struct pxa3xx_nand_flash builtin_flash_types[] = {
> >  { "512MiB 8-bit",  0xdc2c,  64, 2048,  8,  8, 4096, &timing[2] },
> >  { "512MiB 16-bit", 0xcc2c,  64, 2048, 16, 16, 4096, &timing[2] },
> >  { "256MiB 16-bit", 0xba20,  64, 2048, 16, 16, 2048, &timing[3] },
> > +{ },
> > +};
> > +
> > +static struct pxa3xx_nand_flash berlin_builtin_flash_types[] = {
> > +{ "2GiB 8-bit",    0xd5ec, 128, 8192,  8,  8, 2048, &timing[4] },
> > +{ "2GiB 8-bit",    0xd598, 128, 8192,  8,  8, 2048, &timing[5] },
> > +{ "2GiB 8-bit",    0x482c, 256, 4096,  8,  8, 2048, &timing[6] },
> > +{ "4GiB 8-bit",    0xd7ec, 128, 8192,  8,  8, 4096, &timing[5] },
> > +{ "8GiB 8-bit",    0xdeec, 128, 8192,  8,  8, 4096, &timing[5] },
> > +{ "4GiB 8-bit",    0xd7ad, 256, 8192,  8,  8, 2048, &timing[5] },
> > +{ "4GiB 8-bit",    0x682c, 256, 4096,  8,  8, 4096, &timing[6] },
> > +{ "8GiB 8-bit",    0x882c, 256, 8192,  8,  8, 4096, &timing[6] },
> > +{ "8GiB 8-bit",    0xdead, 256, 8192,  8,  8, 4096, &timing[6] },
> > +{ },
> >  };
> >  
> 
> IMO, this sucks. I was hoping to see this old style probing go away,
> instead of be augmented.
> 
> There are proper ways to set timings.

Agreed. I'm not taking any additions to this table. Please rewrite the
code to use the onfi_async_timing_mode_to_sdr_timings() helpers.

Brian

  reply	other threads:[~2015-02-06  1:25 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-27 14:10 [PATCH 0/9] ARM: berlin: add nand support Antoine Tenart
2015-01-27 14:10 ` [PATCH 1/9] mtd: pxa3xx_nand: initialiaze pxa3xx_flash_ids to 0 Antoine Tenart
2015-01-27 14:10 ` [PATCH 2/9] mtd: pxa3xx_nand: add a non mandatory ECC clock Antoine Tenart
2015-01-27 15:50   ` Andrew Lunn
2015-01-28 14:14     ` Antoine Tenart
2015-02-08 19:55       ` Boris Brezillon
2015-01-28  3:35   ` Jisheng Zhang
2015-01-28 14:17     ` Antoine Tenart
2015-01-27 14:10 ` [PATCH 3/9] mtd: pxa3xx_nand: set NDCR_PG_PER_BLK if page per block is 128 Antoine Tenart
2015-02-08 20:00   ` Boris Brezillon
2015-01-27 14:10 ` [PATCH 4/9] mtd: pxa3xx_nand: add a default chunk size Antoine Tenart
2015-02-08 20:15   ` Boris Brezillon
2015-02-08 20:18     ` Boris Brezillon
2015-01-27 14:10 ` [PATCH 5/9] mtd: pxa3xx_nand: add support for the Marvell Berlin nand controller Antoine Tenart
2015-01-27 14:42   ` Ezequiel Garcia
2015-02-06  1:25     ` Brian Norris [this message]
2015-02-08 21:06   ` Boris Brezillon
2015-02-11 16:27     ` Antoine Tenart
2015-02-08 23:55   ` Boris Brezillon
2015-02-10 19:50     ` Robert Jarzmik
2015-02-11 16:33       ` Antoine Tenart
2015-02-12 16:26         ` Robert Jarzmik
2015-02-17  9:52           ` Antoine Tenart
2015-02-11 16:31     ` Antoine Tenart
2015-01-27 14:10 ` [PATCH 6/9] Documentation: bindings: add the Berlin nand controller compatible Antoine Tenart
2015-01-27 14:10 ` [PATCH 7/9] mtd: nand: let Marvell Berlin SoCs select the pxa3xx driver Antoine Tenart
2015-01-27 14:10 ` [PATCH 8/9] ARM: berlin: add BG2Q node for the nand Antoine Tenart
2015-01-27 14:10 ` [PATCH 9/9] ARM: berlin: enable flash on the BG2Q DMP Antoine Tenart

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