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Thu, 28 Jan 2021 01:45:41 -0800 (PST) MIME-Version: 1.0 References: <89ae32a0-9b19-4735-90eb-4ffa22aad704@kernel.org> <20190729103655.095297a2@xps13> <18734a1d-17d9-d390-58ef-ad8ca1be925f@kernel.org> <20190729144730.4a58de32@xps13> <17b49e7d-ff63-315f-cf12-3474f7228c6d@kernel.org> <781dd4e6-a694-c3e1-ee13-9c5c51598623@kernel.org> <53cb8db7-bcf8-ee7c-84ee-59a14a04aad9@kernel.org> <20190730103822.7576645d@xps13> <0a6afd79-d5ca-24da-a62c-11146a3522f6@kernel.org> <20190731082823.6284f5a9@collabora.com> <20190802145109.00c4a4eb@collabora.com> <20190808183651.7c0962e7@collabora.com> <694cb2ac-68e6-72b1-3d55-e405b176a17f@kernel.org> <20190809082356.0cf60555@collabora.com> <20190809093235.09d89e20@collabora.com> <20190809155934.40c43f29@collabora.com> <00b31833-69ba-42c5-57c9-37fa1f70efc5@kernel.org> <20190812093129.75888dad@collabora.com> In-Reply-To: From: Michael Nazzareno Trimarchi Date: Thu, 28 Jan 2021 10:45:29 +0100 Message-ID: Subject: Re: GPMI iMX6ull timeout on DMA To: Greg Ungerer X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210128_044543_381157_21E88CFE X-CRM114-Status: GOOD ( 17.26 ) X-BeenThere: linux-mtd@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux MTD discussion mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Miquel Raynal , Sascha Hauer , Boris Brezillon , linux-mtd@lists.infradead.org, Boris Brezillon Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-mtd" Errors-To: linux-mtd-bounces+linux-mtd=archiver.kernel.org@lists.infradead.org Hi Greg On Tue, Aug 13, 2019 at 2:50 AM Greg Ungerer 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 ______________________________________________________ Linux MTD discussion mailing list http://lists.infradead.org/mailman/listinfo/linux-mtd/