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From: Michael Nazzareno Trimarchi <michael@amarulasolutions.com>
To: Greg Ungerer <gerg@kernel.org>
Cc: Miquel Raynal <miquel.raynal@bootlin.com>,
	Sascha Hauer <s.hauer@pengutronix.de>,
	Boris Brezillon <boris.brezillon@collabora.com>,
	linux-mtd@lists.infradead.org,
	Boris Brezillon <bbrezillon@kernel.org>
Subject: Re: GPMI iMX6ull timeout on DMA
Date: Thu, 28 Jan 2021 10:45:29 +0100
Message-ID: <CAOf5uwmPzCU8WFRQ1tQBdN7OVGZZ9SvdAG0YqVAyxmA1zwtUhg@mail.gmail.com> (raw)
In-Reply-To: <a47792dc-b19f-8af3-8748-5a21fb63271e@kernel.org>

Hi Greg

On Tue, Aug 13, 2019 at 2:50 AM Greg Ungerer <gerg@kernel.org> wrote:
>
> Hi Boris,
>
> On 12/8/19 5:31 pm, Boris Brezillon wrote:
> > On Mon, 12 Aug 2019 12:50:36 +1000
> [snip]
> > Hm, CTRL1 is identical. Can you dump all regs at the beginning and at
> > the end of those funcs?
>
> Here is a more complete dump of registers. Trace points are at
> entry and exit of the respective functions in the different
> kernel versions. Register dumping code is identical for both.
>
>
> Linux version 4.16.0 (gerg@goober) (gcc version 4.8.3 (GCC)) #10 Tue Aug 13 10:24:28 AEST 2019
> ...

I ran an overnight reboot process on linux-4.19.y tag: v4.19.169 and
I'm not able to reproduce up to now.

Do you have an update from your side?

Michael

> drivers/mtd/nand/gpmi-nand/gpmi-lib.c(1073): gpmi_begin(): ENTRY
>    HW_GPMI_CTRL0=0x00000000
>    HW_GPMI_CTRL1=0x01c4000c
>    HW_GPMI_COMPARE=0x00000000
>    HW_GPMI_ECCCTRL=0x00000400
>    HW_GPMI_ECCCOUNT=0x00000000
>    HW_GPMI_PAYLOAD=0x00000000
>    HW_GPMI_AUXILIARY=0x00000000
>    HW_GPMI_TIMING0=0x00010203
>    HW_GPMI_TIMING1=0x00000000
>    HW_GPMI_TIMING2=0x23023336
>    HW_GPMI_DATA=0x00000000
>    HW_GPMI_STAT=0xff000005
>    HW_GPMI_DEBUG=0x00000000
>    r->clock[0]=22000000
> nand: device found, Manufacturer ID: 0x2c, Chip ID: 0xda
> nand: Micron MT29F2G08ABAEAWP
> nand: 256 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB size: 64
> gpmi-nand 1806000.gpmi-nand: enable the asynchronous EDO mode 5
> drivers/mtd/nand/gpmi-nand/gpmi-lib.c(1073): gpmi_begin(): ENTRY
>    HW_GPMI_CTRL0=0x01800001
>    HW_GPMI_CTRL1=0x0104000c
>    HW_GPMI_COMPARE=0x00000000
>    HW_GPMI_ECCCTRL=0x00000000
>    HW_GPMI_ECCCOUNT=0x00000000
>    HW_GPMI_PAYLOAD=0x00000000
>    HW_GPMI_AUXILIARY=0x00000000
>    HW_GPMI_TIMING0=0x00010203
>    HW_GPMI_TIMING1=0x05000000
>    HW_GPMI_TIMING2=0x23023336
>    HW_GPMI_DATA=0x00000000
>    HW_GPMI_STAT=0xff000005
>    HW_GPMI_DEBUG=0x00000101
>    r->clock[0]=99000000
> drivers/mtd/nand/gpmi-nand/gpmi-lib.c(1136): gpmi_begin(): EXIT
>    HW_GPMI_CTRL0=0x01800001
>    HW_GPMI_CTRL1=0x01c6800c
>    HW_GPMI_COMPARE=0x00000000
>    HW_GPMI_ECCCTRL=0x00000000
>    HW_GPMI_ECCCOUNT=0x00000000
>    HW_GPMI_PAYLOAD=0x00000000
>    HW_GPMI_AUXILIARY=0x00000000
>    HW_GPMI_TIMING0=0x00010101
>    HW_GPMI_TIMING1=0x90000000
>    HW_GPMI_TIMING2=0x23023336
>    HW_GPMI_DATA=0x00000000
>    HW_GPMI_STAT=0xff000005
>    HW_GPMI_DEBUG=0x00000101
>    r->clock[0]=99000000
> Scanning device for bad blocks
> 5 ofpart partitions found on MTD device gpmi-nand
> Creating 5 MTD partitions on "gpmi-nand":
> 0x000000000000-0x000000500000 : "u-boot"
> 0x000000500000-0x000000600000 : "u-boot-env"
> 0x000000600000-0x000000800000 : "log"
> 0x000000800000-0x000010000000 : "flash"
> 0x000000000000-0x000010000000 : "all"
> gpmi-nand 1806000.gpmi-nand: driver registered.
> ...
>
> Note that the first ENTRY dump has no matching EXIT dump. From the
> code I assume it is returning from gpmi_begin() at the
> "if (!hw.sample_delay_factor)" check.
>
>
> And for the 5.1.14 kernel:
>
> Linux version 5.1.14 (gerg@goober) (gcc version 4.8.3 (GCC)) #27 Tue Aug 13 10:20:32 AEST 2019
> ...
> drivers/mtd/nand/raw/gpmi-nand/gpmi-lib.c(512): gpmi_nfc_apply_timings(): ENTRY
>    HW_GPMI_CTRL0=0x00000000
>    HW_GPMI_CTRL1=0x01c4000c
>    HW_GPMI_COMPARE=0x00000000
>    HW_GPMI_ECCCTRL=0x00000400
>    HW_GPMI_ECCCOUNT=0x00000000
>    HW_GPMI_PAYLOAD=0x00000000
>    HW_GPMI_AUXILIARY=0x00000000
>    HW_GPMI_TIMING0=0x00010203
>    HW_GPMI_TIMING1=0x00000000
>    HW_GPMI_TIMING2=0x23023336
>    HW_GPMI_DATA=0x00000000
>    HW_GPMI_STAT=0xff000005
>    HW_GPMI_DEBUG=0x00000000
>    r->clock[0]=22000000
> drivers/mtd/nand/raw/gpmi-nand/gpmi-lib.c(536): gpmi_nfc_apply_timings(): EXIT
>    HW_GPMI_CTRL0=0x00000000
>    HW_GPMI_CTRL1=0x0104000c
>    HW_GPMI_COMPARE=0x00000000
>    HW_GPMI_ECCCTRL=0x00000400
>    HW_GPMI_ECCCOUNT=0x00000000
>    HW_GPMI_PAYLOAD=0x00000000
>    HW_GPMI_AUXILIARY=0x00000000
>    HW_GPMI_TIMING0=0x00020101
>    HW_GPMI_TIMING1=0x60000000
>    HW_GPMI_TIMING2=0x23023336
>    HW_GPMI_DATA=0x00000000
>    HW_GPMI_STAT=0xff000005
>    HW_GPMI_DEBUG=0x00000000
>    r->clock[0]=22000000
> random: fast init done
> nand: device found, Manufacturer ID: 0x2c, Chip ID: 0xda
> nand: Micron MT29F2G08ABAEAWP
> nand: 256 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB size: 64
> drivers/mtd/nand/raw/gpmi-nand/gpmi-lib.c(512): gpmi_nfc_apply_timings(): ENTRY
>    HW_GPMI_CTRL0=0x01800001
>    HW_GPMI_CTRL1=0x0104000c
>    HW_GPMI_COMPARE=0x00000000
>    HW_GPMI_ECCCTRL=0x00000000
>    HW_GPMI_ECCCOUNT=0x00000000
>    HW_GPMI_PAYLOAD=0x00000000
>    HW_GPMI_AUXILIARY=0x00000000
>    HW_GPMI_TIMING0=0x00020101
>    HW_GPMI_TIMING1=0x60000000
>    HW_GPMI_TIMING2=0x23023336
>    HW_GPMI_DATA=0x0000003f
>    HW_GPMI_STAT=0xff000005
>    HW_GPMI_DEBUG=0x00000101
>    r->clock[0]=22000000
> drivers/mtd/nand/raw/gpmi-nand/gpmi-lib.c(536): gpmi_nfc_apply_timings(): EXIT
>    HW_GPMI_CTRL0=0x01800001
>    HW_GPMI_CTRL1=0x0104000c
>    HW_GPMI_COMPARE=0x00000000
>    HW_GPMI_ECCCTRL=0x00000000
>    HW_GPMI_ECCCOUNT=0x00000000
>    HW_GPMI_PAYLOAD=0x00000000
>    HW_GPMI_AUXILIARY=0x00000000
>    HW_GPMI_TIMING0=0x00020101
>    HW_GPMI_TIMING1=0xb0000000
>    HW_GPMI_TIMING2=0x23023336
>    HW_GPMI_DATA=0x0000003f
>    HW_GPMI_STAT=0xff000005
>    HW_GPMI_DEBUG=0x00000101
>    r->clock[0]=22000000
> drivers/mtd/nand/raw/gpmi-nand/gpmi-lib.c(512): gpmi_nfc_apply_timings(): ENTRY
>    HW_GPMI_CTRL0=0x01800001
>    HW_GPMI_CTRL1=0x0104000c
>    HW_GPMI_COMPARE=0x00000000
>    HW_GPMI_ECCCTRL=0x00000000
>    HW_GPMI_ECCCOUNT=0x00000000
>    HW_GPMI_PAYLOAD=0x00000000
>    HW_GPMI_AUXILIARY=0x00000000
>    HW_GPMI_TIMING0=0x00020101
>    HW_GPMI_TIMING1=0xb0000000
>    HW_GPMI_TIMING2=0x23023336
>    HW_GPMI_DATA=0x000000e0
>    HW_GPMI_STAT=0xff000005
>    HW_GPMI_DEBUG=0x00000000
>    r->clock[0]=22000000
> drivers/mtd/nand/raw/gpmi-nand/gpmi-lib.c(536): gpmi_nfc_apply_timings(): EXIT
>    HW_GPMI_CTRL0=0x01800001
>    HW_GPMI_CTRL1=0x01c6800c
>    HW_GPMI_COMPARE=0x00000000
>    HW_GPMI_ECCCTRL=0x00000000
>    HW_GPMI_ECCCOUNT=0x00000000
>    HW_GPMI_PAYLOAD=0x00000000
>    HW_GPMI_AUXILIARY=0x00000000
>    HW_GPMI_TIMING0=0x00010101
>    HW_GPMI_TIMING1=0xe0000000
>    HW_GPMI_TIMING2=0x23023336
>    HW_GPMI_DATA=0x000000e0
>    HW_GPMI_STAT=0xff000005
>    HW_GPMI_DEBUG=0x00000000
>    r->clock[0]=99000000
> Scanning device for bad blocks
> 5 fixed-partitions partitions found on MTD device gpmi-nand
> Creating 5 MTD partitions on "gpmi-nand":
> 0x000000000000-0x000000500000 : "u-boot"
> 0x000000500000-0x000000600000 : "u-boot-env"
> 0x000000600000-0x000000800000 : "log"
> 0x000000800000-0x000010000000 : "flash"
> 0x000000000000-0x000010000000 : "all"
> gpmi-nand 1806000.gpmi-nand: driver registered.
> ...
>
>
> Regards
> Greg
>
>


-- 
Michael Nazzareno Trimarchi
Amarula Solutions BV
COO Co-Founder
Cruquiuskade 47 Amsterdam 1018 AM NL
T. +31(0)851119172
M. +39(0)3479132170
[`as] https://www.amarulasolutions.com

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  reply index

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-29  6:41 Greg Ungerer
2019-07-29  8:36 ` Miquel Raynal
2019-07-29  8:42   ` Michael Nazzareno Trimarchi
2019-07-29 12:18     ` Greg Ungerer
2019-07-29 12:20       ` Michael Nazzareno Trimarchi
2019-07-29 12:33   ` Greg Ungerer
2019-07-29 12:47     ` Miquel Raynal
2019-07-29 12:49       ` Michael Nazzareno Trimarchi
2019-07-29 12:55         ` Miquel Raynal
2019-07-29 13:00           ` Michael Nazzareno Trimarchi
2019-07-29 13:22             ` Miquel Raynal
2019-07-29 20:00               ` Michael Nazzareno Trimarchi
2019-07-29 21:02                 ` Miquel Raynal
2019-07-30  0:28       ` Greg Ungerer
2019-07-30  0:41         ` Greg Ungerer
2019-07-30  6:06           ` Greg Ungerer
2019-07-30  8:38             ` Miquel Raynal
2019-07-30  8:58               ` Boris Brezillon
2019-07-31  2:05               ` Greg Ungerer
2019-07-31  6:28                 ` Boris Brezillon
2019-08-02  7:19                   ` Greg Ungerer
2019-08-02 12:34                   ` Greg Ungerer
2019-08-02 12:51                     ` Boris Brezillon
2019-08-05  5:51                       ` Greg Ungerer
2019-08-07 16:05                         ` Miquel Raynal
2019-08-08  0:43                           ` Greg Ungerer
2019-08-08 16:36                         ` Boris Brezillon
2019-08-09  5:20                           ` Greg Ungerer
2019-08-09  6:23                             ` Boris Brezillon
2019-08-09  6:55                               ` Greg Ungerer
2019-08-09  7:32                                 ` Boris Brezillon
2019-08-09 13:57                                   ` Greg Ungerer
2019-08-09 13:59                                     ` Boris Brezillon
2019-08-12  2:50                                       ` Greg Ungerer
2019-08-12  4:04                                         ` Greg Ungerer
2019-08-12  7:31                                         ` Boris Brezillon
2019-08-13  0:50                                           ` Greg Ungerer
2021-01-28  9:45                                             ` Michael Nazzareno Trimarchi [this message]
2021-01-28 10:26                                               ` Miquel Raynal
2021-01-28 10:35                                                 ` Michael Nazzareno Trimarchi
2021-01-28 11:55                                                   ` Michael Nazzareno Trimarchi
2021-01-29 12:43                                               ` Greg Ungerer
2021-01-30  9:41                                                 ` Michael Nazzareno Trimarchi
2021-02-01 14:13                                                   ` Miquel Raynal
2021-02-01 14:32                                                     ` Michael Nazzareno Trimarchi
2021-02-01 15:08                                                       ` Michael Nazzareno Trimarchi
2021-02-01 15:14                                                         ` Miquel Raynal
2021-02-01 15:17                                                           ` Michael Nazzareno Trimarchi
  -- strict thread matches above, loose matches on Subject: below --
2018-10-02 13:22 GPMI IMX6ull timeout on dma Michael Nazzareno Trimarchi
2018-10-04 14:36 ` Michael Nazzareno Trimarchi

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