From: Wolfram Sang <w.sang@pengutronix.de>
To: Huang Shijie <b32955@freescale.com>
Cc: thierry.nolf.barco@gmail.com, LW@KARO-electronics.de,
linux-mtd@lists.infradead.org,
linux-arm-kernel@lists.infradead.org, dedekind1@gmail.com
Subject: Re: [PATCH v7 0/3] add the GPMI controller driver for IMX23/IMX28
Date: Thu, 30 Jun 2011 12:40:09 +0200 [thread overview]
Message-ID: <20110630104009.GC1997@pengutronix.de> (raw)
In-Reply-To: <1309335878-16678-1-git-send-email-b32955@freescale.com>
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On Wed, Jun 29, 2011 at 04:24:35PM +0800, Huang Shijie wrote:
> The general-purpose media interface(GPMI) controller is a flexible interface
> to up to several NAND flashs.
>
> The Bose Ray-Choudhury Hocquenghem(BCH) module is a hardware ECC accelerator.
>
> With the help of BCH, the GPMI controller can choose to do the hardware ECC or
> not.
>
> This driver is a _pure_ MTD NAND controller driver now.
It seems writing does not work for me. I use a MX28EVK, NAND is reported as:
[ 1.670000] NAND device: Manufacturer ID: 0x2c, Chip ID: 0xdc (Micron MT29F4G08ABADAWP)
With ubiformat or the mtd_stresstest-module, I get stuff like this:
root@device:~ ubiformat /dev/mtd0
ubiformat: mtd0 (nand), size 536870912 bytes (512.0 MiB), 4096 eraseblocks of 131072 bytes (128.0 KiB), min. I/O size 2048 bytes
libscan: scanning eraseblock 4095 -- 100 % complete
ubiformat: 4094 eraseblocks are supposedly empty
ubiformat: 2 bad eraseblocks found, numbers: 1243, 3935
ubiformat: formatting eraseblock 2 -- 0 % complete
[ 172.430000] [ start_dma_without_bch_irq : 393 ] DMA timeout!!!
[ 173.430000] [ start_dma_with_bch_irq : 424 ] bch timeout!!!
[ 173.430000] [ mil_ecc_write_page : 1647 ] Error in ECC-based write: -110
[ 173.440000] [ send_command : 305 ] step 1 error
[ 173.440000] [ mil_cmd_ctrl : 1369 ] Chip: 0, Error -1
[ 173.450000] [ send_command : 305 ] step 1 error
[ 173.450000] [ mil_cmd_ctrl : 1369 ] Chip: 0, Error -1
[ 173.460000] [ read_data : 386 ] step 1 error
...
Reading works though, mtd_readtest passes. Wild guess: something wrong
with the safe timings, perhaps?
Regards,
Wolfram
--
Pengutronix e.K. | Wolfram Sang |
Industrial Linux Solutions | http://www.pengutronix.de/ |
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WARNING: multiple messages have this Message-ID (diff)
From: w.sang@pengutronix.de (Wolfram Sang)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v7 0/3] add the GPMI controller driver for IMX23/IMX28
Date: Thu, 30 Jun 2011 12:40:09 +0200 [thread overview]
Message-ID: <20110630104009.GC1997@pengutronix.de> (raw)
In-Reply-To: <1309335878-16678-1-git-send-email-b32955@freescale.com>
On Wed, Jun 29, 2011 at 04:24:35PM +0800, Huang Shijie wrote:
> The general-purpose media interface(GPMI) controller is a flexible interface
> to up to several NAND flashs.
>
> The Bose Ray-Choudhury Hocquenghem(BCH) module is a hardware ECC accelerator.
>
> With the help of BCH, the GPMI controller can choose to do the hardware ECC or
> not.
>
> This driver is a _pure_ MTD NAND controller driver now.
It seems writing does not work for me. I use a MX28EVK, NAND is reported as:
[ 1.670000] NAND device: Manufacturer ID: 0x2c, Chip ID: 0xdc (Micron MT29F4G08ABADAWP)
With ubiformat or the mtd_stresstest-module, I get stuff like this:
root at device:~ ubiformat /dev/mtd0
ubiformat: mtd0 (nand), size 536870912 bytes (512.0 MiB), 4096 eraseblocks of 131072 bytes (128.0 KiB), min. I/O size 2048 bytes
libscan: scanning eraseblock 4095 -- 100 % complete
ubiformat: 4094 eraseblocks are supposedly empty
ubiformat: 2 bad eraseblocks found, numbers: 1243, 3935
ubiformat: formatting eraseblock 2 -- 0 % complete
[ 172.430000] [ start_dma_without_bch_irq : 393 ] DMA timeout!!!
[ 173.430000] [ start_dma_with_bch_irq : 424 ] bch timeout!!!
[ 173.430000] [ mil_ecc_write_page : 1647 ] Error in ECC-based write: -110
[ 173.440000] [ send_command : 305 ] step 1 error
[ 173.440000] [ mil_cmd_ctrl : 1369 ] Chip: 0, Error -1
[ 173.450000] [ send_command : 305 ] step 1 error
[ 173.450000] [ mil_cmd_ctrl : 1369 ] Chip: 0, Error -1
[ 173.460000] [ read_data : 386 ] step 1 error
...
Reading works though, mtd_readtest passes. Wild guess: something wrong
with the safe timings, perhaps?
Regards,
Wolfram
--
Pengutronix e.K. | Wolfram Sang |
Industrial Linux Solutions | http://www.pengutronix.de/ |
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next prev parent reply other threads:[~2011-06-30 10:40 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-29 8:24 [PATCH v7 0/3] add the GPMI controller driver for IMX23/IMX28 Huang Shijie
2011-06-29 8:24 ` Huang Shijie
2011-06-29 8:24 ` Huang Shijie
2011-06-29 8:24 ` Huang Shijie
2011-06-29 8:24 ` [PATCH v7 1/3] MTD : add the common code for GPMI-NFC controller driver Huang Shijie
2011-06-29 8:24 ` Huang Shijie
2011-06-29 10:06 ` Wolfram Sang
2011-06-29 10:06 ` Wolfram Sang
2011-06-29 10:33 ` Wolfram Sang
2011-06-29 10:33 ` Wolfram Sang
2011-06-29 10:46 ` Huang Shijie
2011-06-29 10:46 ` Huang Shijie
2011-06-29 12:29 ` Wolfram Sang
2011-06-29 12:29 ` Wolfram Sang
2011-06-29 12:42 ` Russell King - ARM Linux
2011-06-29 12:42 ` Russell King - ARM Linux
2011-06-29 12:49 ` Wolfram Sang
2011-06-29 12:49 ` Wolfram Sang
2011-06-29 14:00 ` Shawn Guo
2011-06-29 14:00 ` Shawn Guo
2011-06-29 14:15 ` Wolfram Sang
2011-06-29 14:15 ` Wolfram Sang
2011-06-29 14:37 ` Shawn Guo
2011-06-29 14:37 ` Shawn Guo
2011-06-30 4:46 ` Wolfram Sang
2011-06-30 4:46 ` Wolfram Sang
2011-06-30 5:28 ` Shawn Guo
2011-06-30 5:28 ` Shawn Guo
2011-06-30 8:06 ` [PATCH] dmaengine: mxs-dma: skip request_irq for NO_IRQ Shawn Guo
2011-06-30 8:06 ` Shawn Guo
2011-07-07 0:15 ` Shawn Guo
2011-07-07 0:15 ` Shawn Guo
2011-07-07 2:06 ` Vinod Koul
2011-07-07 2:06 ` Vinod Koul
2011-07-07 3:24 ` Shawn Guo
2011-07-07 3:24 ` Shawn Guo
2011-07-07 3:23 ` Huang Shijie
2011-07-07 3:23 ` Huang Shijie
2011-07-13 23:31 ` Koul, Vinod
2011-07-13 23:31 ` Koul, Vinod
2011-06-29 12:38 ` [PATCH v7 1/3] MTD : add the common code for GPMI-NFC controller driver Russell King - ARM Linux
2011-06-29 12:38 ` Russell King - ARM Linux
2011-06-30 1:50 ` Huang Shijie
2011-06-30 1:50 ` Huang Shijie
2011-06-30 10:27 ` Wolfram Sang
2011-06-30 10:27 ` Wolfram Sang
2011-06-30 17:04 ` Wolfram Sang
2011-06-30 17:04 ` Wolfram Sang
2011-07-01 5:41 ` Artem Bityutskiy
2011-07-01 5:41 ` Artem Bityutskiy
2011-07-01 6:47 ` Huang Shijie
2011-07-01 6:47 ` Huang Shijie
2011-06-29 8:24 ` [PATCH v7 2/3] MTD : add support for imx23 and imx28 Huang Shijie
2011-06-29 8:24 ` Huang Shijie
2011-06-29 8:24 ` [PATCH v7 3/3] MTD : add GPMI-NFC driver in the config and Makefile Huang Shijie
2011-06-29 8:24 ` Huang Shijie
2011-06-30 10:40 ` Wolfram Sang [this message]
2011-06-30 10:40 ` [PATCH v7 0/3] add the GPMI controller driver for IMX23/IMX28 Wolfram Sang
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