From: ezequiel.garcia@free-electrons.com (Ezequiel Garcia)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 09/27] mtd: nand: pxa3xx: Split FIFO size from to-be-read FIFO count
Date: Mon, 4 Nov 2013 09:13:06 -0300 [thread overview]
Message-ID: <20131104121305.GD2516@localhost> (raw)
In-Reply-To: <20131103223646.GC5896@gmail.com>
On Sun, Nov 03, 2013 at 05:36:50PM -0500, Huang Shijie wrote:
> On Fri, Oct 18, 2013 at 08:02:36PM -0300, Ezequiel Garcia wrote:
> >
> > - switch (host->page_size) {
> > + switch (info->fifo_size) {
> > case 2048:
>
> there is a item in the builtin_flash_types:
> { "4GiB 8-bit", 0xd7ec, 128, 4096, 8, 8, 8192, &timing[1] },
>
> The original host->page_size could be 4096, how can the old code support
> this nand with page-size is 4096?
>
Ah, nice catch. I completely missed that line!
I've rechecked the PXA3xx spec. but it makes no mention to supporting
4096 (and it doesn't mention the FIFO buffer's size).
On the other side, and AFAIK, the 'splitted' command semantics in the
NFCv2 (the one I'm working on) was added specifically to support
page-size of 4096 and 8192.
In other words, I'm not sure how could the old code support 4096!
The support was adding long ago, in this commit:
commit d3490dfdbc453a16bc7f3cff731c9f7851735ab3
Author: Haojian Zhuang <haojian.zhuang@marvell.com>
Date: Thu Sep 10 14:33:30 2009 +0800
pxa3xx_nand: add new nand chip support
Support samsung 2GbX8 and 32GbX8 nand flash.
Support micron 4GbX8 and 4GbX16 nand flash.
Signed-off-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
So, maybe they can provide some answers. Haojian? Eric?
--
Ezequiel Garc?a, Free Electrons
Embedded Linux, Kernel and Android Engineering
http://free-electrons.com
next prev parent reply other threads:[~2013-11-04 12:13 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-18 23:02 [PATCH v2 00/27] Armada 370/XP NAND support Ezequiel Garcia
2013-10-18 23:02 ` [PATCH v2 01/27] clk: mvebu: Add Core Divider clock Ezequiel Garcia
2013-10-23 11:28 ` Jason Cooper
2013-10-23 13:06 ` Ezequiel Garcia
2013-10-18 23:02 ` [PATCH v2 02/27] ARM: mvebu: Add Core Divider clock device-tree binding Ezequiel Garcia
2013-10-18 23:02 ` [PATCH v2 03/27] ARM: mvebu: Add a 2 GHz fixed-clock Armada 370/XP Ezequiel Garcia
2013-10-18 23:02 ` [PATCH v2 04/27] ARM: mvebu: Add the core-divider clock to " Ezequiel Garcia
2013-10-18 23:02 ` [PATCH v2 05/27] mtd: nand: pxa3xx: Make config menu show supported platforms Ezequiel Garcia
2013-10-18 23:02 ` [PATCH v2 06/27] mtd: nand: pxa3xx: Prevent sub-page writes Ezequiel Garcia
2013-10-18 23:02 ` [PATCH v2 07/27] mtd: nand: pxa3xx: Early variant detection Ezequiel Garcia
2013-11-03 21:18 ` Huang Shijie
2013-11-04 12:01 ` Ezequiel Garcia
2013-10-18 23:02 ` [PATCH v2 08/27] mtd: nand: pxa3xx: Use chip->cmdfunc instead of the internal Ezequiel Garcia
2013-11-03 21:32 ` Huang Shijie
2013-11-04 11:58 ` Ezequiel Garcia
2013-10-18 23:02 ` [PATCH v2 09/27] mtd: nand: pxa3xx: Split FIFO size from to-be-read FIFO count Ezequiel Garcia
2013-11-03 22:36 ` Huang Shijie
2013-11-04 12:13 ` Ezequiel Garcia [this message]
2013-11-10 8:30 ` Haojian Zhuang
2013-10-18 23:02 ` [PATCH v2 10/27] mtd: nand: pxa3xx: Replace host->page_size by mtd->writesize Ezequiel Garcia
2013-11-03 22:52 ` Huang Shijie
2013-11-04 12:24 ` Ezequiel Garcia
2013-10-18 23:02 ` [PATCH v2 11/27] mtd: nand: pxa3xx: Disable OOB on arbitrary length commands Ezequiel Garcia
2013-11-03 22:59 ` Huang Shijie
2013-11-04 12:41 ` Ezequiel Garcia
2013-10-18 23:02 ` [PATCH v2 12/27] mtd: nand: pxa3xx: Use a completion to signal device ready Ezequiel Garcia
2013-11-03 23:03 ` Huang Shijie
2013-11-04 13:51 ` Ezequiel Garcia
2013-11-05 18:44 ` Brian Norris
2013-10-18 23:02 ` [PATCH v2 13/27] mtd: nand: pxa3xx: Add bad block handling Ezequiel Garcia
2013-10-18 23:02 ` [PATCH v2 14/27] mtd: nand: pxa3xx: Add driver-specific ECC BCH support Ezequiel Garcia
2013-10-18 23:02 ` [PATCH v2 15/27] mtd: nand: pxa3xx: Clear cmd buffer #3 (NDCB3) on command start Ezequiel Garcia
2013-10-18 23:02 ` [PATCH v2 16/27] mtd: nand: pxa3xx: Add helper function to set page address Ezequiel Garcia
2013-10-18 23:02 ` [PATCH v2 17/27] mtd: nand: pxa3xx: Remove READ0 switch/case falltrough Ezequiel Garcia
2013-10-18 23:02 ` [PATCH v2 18/27] mtd: nand: pxa3xx: Split prepare_command_pool() in two stages Ezequiel Garcia
2013-10-18 23:02 ` [PATCH v2 19/27] mtd: nand: pxa3xx: Move the data buffer clean to prepare_start_command() Ezequiel Garcia
2013-10-18 23:02 ` [PATCH v2 20/27] mtd: nand: pxa3xx: Fix SEQIN column address set Ezequiel Garcia
2013-10-18 23:02 ` [PATCH v2 21/27] mtd: nand: pxa3xx: Add a read/write buffers markers Ezequiel Garcia
2013-10-18 23:02 ` [PATCH v2 22/27] mtd: nand: pxa3xx: Introduce multiple page I/O support Ezequiel Garcia
2013-10-18 23:02 ` [PATCH v2 23/27] mtd: nand: pxa3xx: Add multiple chunk write support Ezequiel Garcia
2013-10-18 23:02 ` [PATCH v2 24/27] mtd: nand: pxa3xx: Add ECC BCH correctable errors detection Ezequiel Garcia
2013-10-18 23:02 ` [PATCH v2 25/27] ARM: mvebu: Add support for NAND controller in Armada 370/XP Ezequiel Garcia
2013-10-18 23:02 ` [PATCH v2 26/27] ARM: mvebu: Enable NAND controller in Armada XP GP board Ezequiel Garcia
2013-10-18 23:02 ` [PATCH v2 27/27] ARM: mvebu: Enable NAND controller in Armada 370 Mirabox Ezequiel Garcia
2013-10-19 6:35 ` [PATCH v2 00/27] Armada 370/XP NAND support Willy Tarreau
2013-10-19 14:25 ` Jason Cooper
2013-10-19 16:21 ` Ezequiel Garcia
2013-10-20 17:50 ` Thomas Petazzoni
2013-10-20 19:24 ` Jason Cooper
2013-10-31 15:58 ` Ezequiel Garcia
2013-10-31 18:22 ` Brian Norris
2013-11-01 2:07 ` Huang Shijie
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