Barebox working on freescale-mx25-3-stack?
hi,
i'm trying to run barebox on a Freescale i.MX25 3-Stack board. for this purpose i built barebox with the freescale-mx25-3-stack defconfig, using the toolchain provided by the Freescale BSP (i also tried it with a custom one). i then dumped the barebox.bin on a MMC card, plugged the card into the socket of the board and switched the board on, but nothing happened :(
booting u-boot or redboot from MMC succeeds, so the settings of SW21 and SW22 shouldn't be the problem
is barebox supposed to work on this board or is the port still in preliminary state?
best regards
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Matthias Kaehlcke
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http://lists.infradead.org/mailman/listinfo/bareboxHi Matthias,
Quoted 7 lines · Matthias Kaehlcke
i'm trying to run barebox on a Freescale i.MX25 3-Stack board. for this purpose i built barebox with the freescale-mx25-3-stack defconfig, using the toolchain provided by the Freescale BSP (i also tried it with a custom one). i then dumped the barebox.bin on a MMC card, plugged the card into the socket of the board and switched the board on, but nothing happened :(
Quoted 6 lines
booting u-boot or redboot from MMC succeeds, so the settings of SW21 and SW22 shouldn't be the problem
is barebox supposed to work on this board or is the port still in preliminary state?
you can check the patch I sent last friday, it works fine on our i.MX25 board for NAND boot (MMC boot not tested yet). I'll post an updated version of the patch in a few days as per Sascha's comments + a few tuning in the env.
Eric
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Hi Matthias,
Quoted 8 lines · Matthias Kaehlcke
hi,
i'm trying to run barebox on a Freescale i.MX25 3-Stack board. for this purpose i built barebox with the freescale-mx25-3-stack defconfig, using the toolchain provided by the Freescale BSP (i also tried it with a custom one). i then dumped the barebox.bin on a MMC card, plugged the card into the socket of the board and switched the board on, but nothing happened :(
I just checked, it works, but not with the current defconfig. Please enable CONFIG_ARCH_IMX_INTERNAL_BOOT to boot from MMC. Note that currently the CPLD is not initialised in barebox and so the FEC is not working (It is working if barebox runs as a second stage loader after Freescales redboot).
Sascha
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hi sascha,
El Tue, Mar 23, 2010 at 03:26:43PM +0100 Sascha Hauer ha dit:
Quoted 10 lines · Matthias Kaehlcke
Quoted 8 lines
hi,
i'm trying to run barebox on a Freescale i.MX25 3-Stack board. for this purpose i built barebox with the freescale-mx25-3-stack defconfig, using the toolchain provided by the Freescale BSP (i also tried it with a custom one). i then dumped the barebox.bin on a MMC card, plugged the card into the socket of the board and switched the board on, but nothing happened :(
Quoted 5 lines
I just checked, it works, but not with the current defconfig. Please enable
CONFIG_ARCH_IMX_INTERNAL_BOOTto boot from MMC. Note that currently the CPLD is not initialised in barebox and so the FEC is not working (It is working if barebox runs as a second stage loader after Freescales redboot).
thanks for checking and for your reply
i enabled CONFIG_ARCH_IMX_INTERNAL_BOOT, but it doesn't work either. i also tried to start barebox from NAND, but no way :(
the barebox version is v2010.03.0, i forgot to mention that in my initial post
if you can send me the barebox image that works on your board i'll check if it works on mine, and we'll have some more certainty about whether there is some obscure problem in my build process or my board is somehow different to yours
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Matthias Kaehlcke
Embedded Linux Developer
Barcelona
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.''`.
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http://lists.infradead.org/mailman/listinfo/bareboxHi Matthias,
Quoted 5 lines · Matthias Kaehlcke
if you can send me the barebox image that works on your board i'll check if it works on mine, and we'll have some more certainty about whether there is some obscure problem in my build process or my board is somehow different to yours
one possible diff : do you have DDR2 or Mobile DDR on your board ?
Eric
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Hi Eric,
El Tue, Mar 23, 2010 at 04:31:11PM +0100 Eric Bénard ha dit:
Quoted 7 lines · Matthias Kaehlcke
Quoted 5 lines
if you can send me the barebox image that works on your board i'll check if it works on mine, and we'll have some more certainty about whether there is some obscure problem in my build process or my board is somehow different to yours
one possible diff : do you have DDR2 or Mobile DDR on your board ?
according to the board documentation it's DDR2
is this what barebox expects to find?
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Matthias Kaehlcke
Embedded Linux Developer
Barcelona
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for which you have no explanation
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http://lists.infradead.org/mailman/listinfo/bareboxHi Matthias,
Quoted 8 lines · Matthias Kaehlcke
El Tue, Mar 23, 2010 at 04:31:11PM +0100 Eric Bénard ha dit:
Quoted 6 lines · Matthias Kaehlcke
Quoted 5 lines
if you can send me the barebox image that works on your board i'll check if it works on mine, and we'll have some more certainty about whether there is some obscure problem in my build process or my board is somehow different to yours
Quoted 6 lines
Quoted 1 line
one possible diff : do you have DDR2 or Mobile DDR on your board ?
according to the board documentation it's DDR2
is this what barebox expects to find?
for the 3stack yes (but I think there may be some 3stack with mDDR as both init sequence are in redboot for example). If you try my patch, it's for mDDR.
Eric
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Quoted 4 lines · Matthias Kaehlcke
according to the board documentation it's DDR2
is this what barebox expects to find?
I have an IMX25PDK with DDR2 memory (Samsung K4T51163QE-ZCE6).
To boot barebox from an SD card, I had to apply the following patch to the current HEAD (ce2411432e23b5cc313c92278b2320bf1547c002):
(quoted diff) +0 -0
b/board/freescale-mx25-3-stack/3stack.c
index 5590e55..d1f0fdc 100644
board/freescale-mx25-3-stack/3stack.c +19 -11
@@ -48,17 +48,25 @@ struct imx_dcd_entry __dcd_entry_0x400 dcd_entry[] = { { .ptr_type = 4, .addr = 0xb8002050, .val = 0x0000d843, }, { .ptr_type = 4, .addr = 0xb8002054, .val = 0x22252521, }, { .ptr_type = 4, .addr = 0xb8002058, .val = 0x22220a00, }, - { .ptr_type = 4, .addr = 0xb8001010, .val = 0x00000004, }, - { .ptr_type = 4, .addr = 0xb8001000, .val = 0x92100000, }, - { .ptr_type = 1, .addr = 0x80000400, .val = 0x21, }, - { .ptr_type = 4, .addr = 0xb8001000, .val = 0xa2100000, }, - { .ptr_type = 4, .addr = 0x80000000, .val = 0x12344321, }, - { .ptr_type = 4, .addr = 0x80000000, .val = 0x12344321, }, - { .ptr_type = 4, .addr = 0xb8001000, .val = 0xb2100000, }, - { .ptr_type = 1, .addr = 0x80000033, .val = 0xda, }, - { .ptr_type = 1, .addr = 0x81000000, .val = 0xff, }, - { .ptr_type = 4, .addr = 0xb8001000, .val = 0x82216880, }, - { .ptr_type = 4, .addr = 0xb8001004, .val = 0x00295729, }, + { .ptr_type = 4, .addr = 0xb8001004, .val = 0x0076e83a, }, + { .ptr_type = 4, .addr = 0xb8001010, .val = 0x00000304, }, + { .ptr_type = 4, .addr = 0xb8001000, .val = 0x92210000, }, + { .ptr_type = 4, .addr = 0x80000f00, .val = 0x12344321, }, + { .ptr_type = 4, .addr = 0xb8001000, .val = 0xb2210000, }, + { .ptr_type = 1, .addr = 0x82000000, .val = 0xda, }, + { .ptr_type = 1, .addr = 0x83000000, .val = 0xda, }, + { .ptr_type = 1, .addr = 0x81000400, .val = 0xda, }, + { .ptr_type = 1, .addr = 0x80000333, .val = 0xda, }, + { .ptr_type = 4, .addr = 0xb8001000, .val = 0x92210000, }, + { .ptr_type = 4, .addr = 0x80000400, .val = 0x12344321, }, + { .ptr_type = 4, .addr = 0xb8001000, .val = 0xa2210000, }, + { .ptr_type = 4, .addr = 0x80000000, .val = 0x87654321, }, + { .ptr_type = 4, .addr = 0x80000000, .val = 0x87654321, }, + { .ptr_type = 4, .addr = 0xb8001000, .val = 0xb2210000, }, + { .ptr_type = 1, .addr = 0x80000233, .val = 0xda, }, + { .ptr_type = 1, .addr = 0x81000780, .val = 0xda, }, + { .ptr_type = 1, .addr = 0x81000400, .val = 0xda, }, + { .ptr_type = 4, .addr = 0xb8001000, .val = 0x82216080, }, { .ptr_type = 4, .addr = 0x53f80008, .val = 0x20034000, }, };
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Hi Ivo,
El Wed, Mar 24, 2010 at 03:54:21PM +0100 Ivo Clarysse ha dit:
Quoted 11 lines
Quoted 4 lines · Matthias Kaehlcke
according to the board documentation it's DDR2
is this what barebox expects to find?
I have an IMX25PDK with DDR2 memory (Samsung K4T51163QE-ZCE6).
To boot barebox from an SD card, I had to apply the following patch to the current HEAD (
ce2411432e23b5cc313c92278b2320bf1547c002):
after applying your patch barebox effectivly came up :)
thanks a lot!
could you explain in few words why the patch is needed?
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Matthias Kaehlcke
Embedded Linux Developer
Barcelona
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http://lists.infradead.org/mailman/listinfo/bareboxQuoted 6 lines · Matthias Kaehlcke
after applying your patch barebox effectivly came up :)
thanks a lot!
could you explain in few words why the patch is needed?
RAM initialization is implemented in two places: lowlevel_init.S and the "Device Configuration Data" (DCD) block.
When booting from an SD card, the i.MX25 reads out the DCD block and applies the settings found there.
The RAM initialization in lowlevel_init.S is skipped when booting from SD; by the time board_init_lowlevel gets executed,
that routine is already running from RAM, and will skip initializing memory.
The DCD table in barebox git contains entries for mDDR memory. This does not work with DDR2 memory.
Probably barebox needs a compile-time option to switch between 128 MiB mDDR memory installed on older MCIMX25PDK CPU engine boards and the 64 MiB DDR2 memory found on newer boards.
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hi ivo,
El Wed, Mar 24, 2010 at 04:23:33PM +0100 Ivo Clarysse ha dit:
Quoted 19 lines
Quoted 6 lines · Matthias Kaehlcke
after applying your patch barebox effectivly came up :)
thanks a lot!
could you explain in few words why the patch is needed?
RAM initialization is implemented in two places:
lowlevel_init.Sand the "Device Configuration Data" (DCD) block.When booting from an SD card, the i.MX25 reads out the DCD block and applies the settings found there.
The RAM initialization in
lowlevel_init.Sis skipped when booting from SD; by the timeboard_init_lowlevelgets executed,
that routine is already running from RAM, and will skip initializing memory.
Quoted 6 lines
The DCD table in barebox git contains entries for mDDR memory. This does not work with DDR2 memory.
Probably barebox needs a compile-time option to switch between 128 MiB mDDR memory installed on older MCIMX25PDK CPU engine boards and the 64 MiB DDR2 memory found on newer boards.
thanks a lot for your explication!
i wasn't aware that differently equipped CPU engine boards exists, good to know
best regards
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Matthias Kaehlcke
Embedded Linux Developer
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http://lists.infradead.org/mailman/listinfo/bareboxQuoted 25 lines · Matthias Kaehlcke
hi sascha,
El Tue, Mar 23, 2010 at 03:26:43PM +0100 Sascha Hauer ha dit:
Quoted 10 lines · Matthias Kaehlcke
Quoted 8 lines
hi,
i'm trying to run barebox on a Freescale i.MX25 3-Stack board. for this purpose i built barebox with the freescale-mx25-3-stack defconfig, using the toolchain provided by the Freescale BSP (i also tried it with a custom one). i then dumped the barebox.bin on a MMC card, plugged the card into the socket of the board and switched the board on, but nothing happened :(
Quoted 5 lines
I just checked, it works, but not with the current defconfig. Please enable
CONFIG_ARCH_IMX_INTERNAL_BOOTto boot from MMC. Note that currently the CPLD is not initialised in barebox and so the FEC is not working (It is working if barebox runs as a second stage loader after Freescales redboot).thanks for checking and for your reply
i enabled
CONFIG_ARCH_IMX_INTERNAL_BOOT, but it doesn't work either. i also tried to start barebox from NAND, but no way :(
Quoted 7 lines
the barebox version is v2010.03.0, i forgot to mention that in my initial post
if you can send me the barebox image that works on your board i'll check if it works on mine, and we'll have some more certainty about whether there is some obscure problem in my build process or my board is somehow different to yours
I sent the image to you in private. Here are my dip switch settings, I don't know which of them are important:
On the baseboard:
sw22: 00000000
sw21: 11000000
On the Debug board:
sw5 .. SW10: 0
Sascha
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Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list [email protected] http://lists.infradead.org/mailman/listinfo/barebox
El Tue, Mar 23, 2010 at 04:31:48PM +0100 Sascha Hauer ha dit:
Quoted 16 lines · Matthias Kaehlcke
Quoted 11 lines
i enabled
CONFIG_ARCH_IMX_INTERNAL_BOOT, but it doesn't work either. i also tried to start barebox from NAND, but no way :(the barebox version is v2010.03.0, i forgot to mention that in my initial post
if you can send me the barebox image that works on your board i'll check if it works on mine, and we'll have some more certainty about whether there is some obscure problem in my build process or my board is somehow different to yours
I sent the image to you in private. Here are my dip switch settings, I don't know which of them are important:
Quoted 7 lines
On the baseboard:
sw22: 00000000
sw21: 11000000On the Debug board:
sw5 .. SW10: 0
thanks for the image and your dip switch settings (mine are the same)
i flashed the image (first at MMC then at NAND), the board still doesn't come up :(
i'm running out of ideas at this point. there must be some difference in our hardware, as it clearly works on your board but not on mine
for the moment i'll stick with u-boot ...
thanks for your help
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Matthias Kaehlcke
Embedded Linux Developer
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