Re: Re: Kernel panic when loading the IDE controller driver
On 02/14/2019 06:54 PM, Christophe Leroy wrote: > > > Le 13/02/2019 à 16:27, Christophe Leroy a écrit : >> >> >> Le 13/02/2019 à 13:53, sgosavi1 a écrit : Why using 4.15.13 which is obsolete instead of using one of the Long Term Support versions which are still maintained, like 4.14 or 4.19 ? (see the complete list at https://www.kernel.org/category/releases.html) >>> >>> Well, when I started this task 4.15.13 was probably the latest stable >>> release and hence we decided to port this version. In the older kernel, we >>> have the m8260_setup.c source file for our board where the function >>> "io_block_mapping" was used to configure the non-standard IO port address >>> starting at 0xe000 location. This address was passed as the base address >>> followed by control address and IRQ number to the ide-core.ko module. In the >>> new kernel we do not have an option to send these addresses and IRQ numbers >>> as arguments to the driver. Instead the ide-generic.c source file in the new >>> kernel uses the standard IO port values and IRQ values. I modified the code >>> in the above file to used the addresses and IRQ number we used in the past. >>> Also, added code in the "MMU_init" function call available under >>> arch/PowerPC/init_32.c to setup the IO port address range by adding the >>> "io_block_mapping" call and the required IO port address range. >>> >>> Is there anything else that needs to be added or how can we configure the >>> desired IO address range in the new kernel? >>> >> >> Maybe look around >> https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=9a0e77f28b50128df0c9e26ae489e44e29a7270a >> >> Also look at ide_platform.c. I imagine there must be some way to set it up >> in your device tree. Please don't add new users to subsystem deprecated almost 10 years ago.. >> Maybe Bartlomiej Zolnierkiewicz can help ? >> >> Christophe > > Le 14/02/2019 à 09:17, sgosavi1 a écrit :>> Maybe look around >> >> I have gone through this before and also tried the pata_platform driver but >> no success yet. I haven't found any example that passes the IO ports and IRQ >> information through the device tree to the driver code. Please look at pata_of_platform.c driver from libata subsystem, it should have all required functionality. >> Thanks, >> Sachin. > > > Maybe someone from the IDE SUBSYSTEM would be able to help better ? > > Entire thread at > http://linuxppc.10917.n7.nabble.com/Kernel-panic-when-loading-the-IDE-controller-driver-td150020.html#none > > Christophe Best regards, -- Bartlomiej Zolnierkiewicz Samsung R Institute Poland Samsung Electronics
Re: Kernel panic when loading the IDE controller driver
Hi All, I finally got the FLASH controller driver working and it is now successfully reporting the presence of 2GB Flash in the board. I used the new "libata" driver code present in the new kernel source under drivers/ata/. Also did the required additions in the device tree to provide the IO port, IRQ and PIO mode details to the driver. However now I am getting the below errors. [4.200145] scsi host0: pata_of_platform [4.236999] ata1: PATA max PIO4 mmio cmd 0xe000 ctl 0xe20c irq 63 [4.439985] ata1.01: ATA-7: 2GB ATA Flash Disk, C A254G4, max UDMA/133 [4.463419] ata1.01: 3571344 sectors, multi 0: LBA48 [4.483384] ata1.01: configured for PIO [4.512936] scsi 0:0:1:0: Direct-Access ATA 2GB ATA Flash Di 54G4 PQ: 0 ANSI: 5 [4.555994] sd 0:0:1:0: [sda] 3571344 512-byte logical blocks: (1.83 GB/1.70 GiB) [4.591975] sd 0:0:1:0: [sda] Write Protect is off [4.611307] sd 0:0:1:0: [sda] Mode Sense: 00 3a 00 00 [4.629733] sd 0:0:1:0: [sda] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA [4.823702] [4.823702] AT THE START OF CPU_STARTUP_ENTRY FUNCTION [4.823734] [4.823734] *INSIDE IDLE LOOP [ 36.163139] ata1: drained 65536 bytes to clear DRQ [ 36.185451] ata1.01: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen [ 36.199598] ata1.01: cmd 20/00:08:00:00:00/00:00:00:00:00/f0 tag 0 pio 4096 in [ 36.199598] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 36.229002] ata1: soft resetting link [ 36.559637] ata1.01: configured for PIO [ 36.567563] ata1.01: device reported invalid CHS sector 0 [ 36.578396] ata1: EH complete [ 68.919134] ata1: drained 65536 bytes to clear DRQ [ 68.928530] ata1.01: limiting speed to UDMA7:PIO5 [ 68.937856] ata1.01: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen [ 68.952487] ata1.01: cmd 20/00:08:00:00:00/00:00:00:00:00/f0 tag 0 pio 4096 in [ 68.952487] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 68.981876] ata1: soft resetting link [ 69.311683] ata1.01: configured for PIO [ 69.319304] ata1.01: device reported invalid CHS sector 0 [ 69.330274] ata1: EH complete [ 101.687134] ata1: drained 65536 bytes to clear DRQ [ 101.696646] ata1.01: limiting speed to PIO0 [ 101.704921] ata1.01: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen [ 101.719288] ata1.01: cmd 20/00:08:00:00:00/00:00:00:00:00/f0 tag 0 pio 4096 in [ 101.719288] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 101.748593] ata1: soft resetting link [ 102.079594] ata1.01: configured for PIO [ 102.087204] ata1.01: device reported invalid CHS sector 0 [ 102.098144] ata1: EH complete [ 132.407134] ata1: drained 65536 bytes to clear DRQ [ 132.416687] ata1.01: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen [ 132.430752] ata1.01: cmd 20/00:08:00:00:00/00:00:00:00:00/f0 tag 0 pio 4096 in [ 132.430752] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 132.460168] ata1: soft resetting link [ 132.791594] ata1.01: configured for PIO [ 132.799048] ata1.01: device reported invalid CHS sector 0 [ 132.810076] ata1: EH complete [ 165.175163] ata1: drained 65536 bytes to clear DRQ [ 165.186023] ata1.01: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6 frozen [ 165.200192] ata1.01: cmd 20/00:08:00:00:00/00:00:00:00:00/f0 tag 0 pio 4096 in [ 165.200192] res 40/00:00:00:00:00/00:00:00:00:00/00 Emask 0x4 (timeout) [ 165.229531] ata1: soft resetting link Can anyone suggest why I am getting the above errors? Thanks, Sachin. -- Sent from: http://linuxppc.10917.n7.nabble.com/linuxppc-dev-f3.html
Re: Kernel panic when loading the IDE controller driver
Hi, > Hopefully there are examples of passing these values through ACPI. Are you suggesting here to look at the ide-acpi.c sourc file available as part of the driver code? In my original post I mentioned that I have modified the ide-generic.c source file to use the IO port addresses and IRQ number that we used in the older kernel. Also, added code in the kernel under arch/PowerPC/mm/init_32.c source to configure the addresses required by the driver as IO ports. But the error I am getting still continues to suggest that probably the required address range is still setup by the kernel as IO ports. How can we configure a set of virtual address as IO ports in the kernel version 4.15.13? Sachin -- Sent from: http://linuxppc.10917.n7.nabble.com/linuxppc-dev-f3.html
Re: Kernel panic when loading the IDE controller driver
On Thu, 14 Feb 2019 01:17:11 -0700 (MST) sgosavi1 wrote: > > Maybe look around > > https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/? > > id=9a0e77f28b50128df0c9e26ae489e44e29a7270a > > >Also look at ide_platform.c. I imagine there must be some way to set it > >up in your device tree. > > I have gone through this before and also tried the pata_platform driver but > no success yet. I haven't found any example that passes the IO ports and IRQ > information through the device tree to the driver code. Hopefully there are examples of passing these values through ACPI. Thanks Michal
Re: Kernel panic when loading the IDE controller driver
Le 13/02/2019 à 16:27, Christophe Leroy a écrit : Le 13/02/2019 à 13:53, sgosavi1 a écrit : Why using 4.15.13 which is obsolete instead of using one of the Long Term Support versions which are still maintained, like 4.14 or 4.19 ? (see the complete list at https://www.kernel.org/category/releases.html) Well, when I started this task 4.15.13 was probably the latest stable release and hence we decided to port this version. In the older kernel, we have the m8260_setup.c source file for our board where the function "io_block_mapping" was used to configure the non-standard IO port address starting at 0xe000 location. This address was passed as the base address followed by control address and IRQ number to the ide-core.ko module. In the new kernel we do not have an option to send these addresses and IRQ numbers as arguments to the driver. Instead the ide-generic.c source file in the new kernel uses the standard IO port values and IRQ values. I modified the code in the above file to used the addresses and IRQ number we used in the past. Also, added code in the "MMU_init" function call available under arch/PowerPC/init_32.c to setup the IO port address range by adding the "io_block_mapping" call and the required IO port address range. Is there anything else that needs to be added or how can we configure the desired IO address range in the new kernel? Maybe look around https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=9a0e77f28b50128df0c9e26ae489e44e29a7270a Also look at ide_platform.c. I imagine there must be some way to set it up in your device tree. Maybe Bartlomiej Zolnierkiewicz can help ? Christophe Le 14/02/2019 à 09:17, sgosavi1 a écrit :>> Maybe look around > > I have gone through this before and also tried the pata_platform driver but > no success yet. I haven't found any example that passes the IO ports and IRQ > information through the device tree to the driver code. > > Thanks, > Sachin. Maybe someone from the IDE SUBSYSTEM would be able to help better ? Entire thread at http://linuxppc.10917.n7.nabble.com/Kernel-panic-when-loading-the-IDE-controller-driver-td150020.html#none Christophe
Re: Kernel panic when loading the IDE controller driver
> Maybe look around > https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/? > id=9a0e77f28b50128df0c9e26ae489e44e29a7270a >Also look at ide_platform.c. I imagine there must be some way to set it >up in your device tree. I have gone through this before and also tried the pata_platform driver but no success yet. I haven't found any example that passes the IO ports and IRQ information through the device tree to the driver code. Thanks, Sachin. -- Sent from: http://linuxppc.10917.n7.nabble.com/linuxppc-dev-f3.html
Re: Kernel panic when loading the IDE controller driver
Le 13/02/2019 à 13:53, sgosavi1 a écrit : Why using 4.15.13 which is obsolete instead of using one of the Long Term Support versions which are still maintained, like 4.14 or 4.19 ? (see the complete list at https://www.kernel.org/category/releases.html) Well, when I started this task 4.15.13 was probably the latest stable release and hence we decided to port this version. In the older kernel, we have the m8260_setup.c source file for our board where the function "io_block_mapping" was used to configure the non-standard IO port address starting at 0xe000 location. This address was passed as the base address followed by control address and IRQ number to the ide-core.ko module. In the new kernel we do not have an option to send these addresses and IRQ numbers as arguments to the driver. Instead the ide-generic.c source file in the new kernel uses the standard IO port values and IRQ values. I modified the code in the above file to used the addresses and IRQ number we used in the past. Also, added code in the "MMU_init" function call available under arch/PowerPC/init_32.c to setup the IO port address range by adding the "io_block_mapping" call and the required IO port address range. Is there anything else that needs to be added or how can we configure the desired IO address range in the new kernel? Maybe look around https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=9a0e77f28b50128df0c9e26ae489e44e29a7270a Also look at ide_platform.c. I imagine there must be some way to set it up in your device tree. Maybe Bartlomiej Zolnierkiewicz can help ? Christophe
Re: Kernel panic when loading the IDE controller driver
> Why using 4.15.13 which is obsolete instead of using one of the Long > Term Support versions which are still maintained, like 4.14 or 4.19 ? > (see the complete list at https://www.kernel.org/category/releases.html) Well, when I started this task 4.15.13 was probably the latest stable release and hence we decided to port this version. In the older kernel, we have the m8260_setup.c source file for our board where the function "io_block_mapping" was used to configure the non-standard IO port address starting at 0xe000 location. This address was passed as the base address followed by control address and IRQ number to the ide-core.ko module. In the new kernel we do not have an option to send these addresses and IRQ numbers as arguments to the driver. Instead the ide-generic.c source file in the new kernel uses the standard IO port values and IRQ values. I modified the code in the above file to used the addresses and IRQ number we used in the past. Also, added code in the "MMU_init" function call available under arch/PowerPC/init_32.c to setup the IO port address range by adding the "io_block_mapping" call and the required IO port address range. Is there anything else that needs to be added or how can we configure the desired IO address range in the new kernel? Thanks, Sachin -- Sent from: http://linuxppc.10917.n7.nabble.com/linuxppc-dev-f3.html
Re: Kernel panic when loading the IDE controller driver
Le 13/02/2019 à 13:24, sgosavi1 a écrit : What it the last linux version known to work properly? We have used it successfully in the Linux-2.6.17.6 version. Oh, ok, there's a big gap between the two versions. Why using 4.15.13 which is obsolete instead of using one of the Long Term Support versions which are still maintained, like 4.14 or 4.19 ? (see the complete list at https://www.kernel.org/category/releases.html) Christophe Thanks, Sachin. -- Sent from: http://linuxppc.10917.n7.nabble.com/linuxppc-dev-f3.html
Re: Kernel panic when loading the IDE controller driver
> What it the last linux version known to work properly? We have used it successfully in the Linux-2.6.17.6 version. Thanks, Sachin. -- Sent from: http://linuxppc.10917.n7.nabble.com/linuxppc-dev-f3.html
Re: Kernel panic when loading the IDE controller driver
Hi, Le 13/02/2019 à 12:01, sgosavi1 a écrit : Hi All, I have been working on porting Linux-4.15.13 kernel on our existing MPC8270 processor board. For this exercise, I have used pq2fads as a reference board, its associated device tree and used cuImage for building the kernel. What it the last linux version known to work properly ? Christophe I am facing an issue with the generic IDE flash controller driver in the new kernel source where it fails to detect the Flash controller connected to 2GB NAND flash available on the board. We have used non-standard IO port addresses for this driver in the older kernel and I have added the required code in the new kernel to setup the set of addresses that we need as IO ports. Also, modified the code in the drivers/ide/ source to use the non-standard IO port address. However, during boot up while inserting the module I continue to get the below errors. [4.116587] ide: forcing hda as a disk (3543/255/63) [4.184190] Probing IDE interface ide0... [4.226330] Machine check in kernel mode. [4.233809] Caused by (from SRR1=49030): [4.233826] Transfer error ack signal [4.249263] IN from bad port e00e at 004123ef I understand that this is an addressing issue but not sure exactly what am I missing to fix the problem. Can you provide me your inputs on debugging this issue? Thanks, Sachin. -- Sent from: http://linuxppc.10917.n7.nabble.com/linuxppc-dev-f3.html
