* SD card over (xilinx_)SPI, timeout error while CID
@ 2009-06-05 15:34 Joachim Foerster
2009-06-05 21:15 ` John Linn
` (2 more replies)
0 siblings, 3 replies; 10+ messages in thread
From: Joachim Foerster @ 2009-06-05 15:34 UTC (permalink / raw)
To: linuxppc-dev, john.linn, dbrownell; +Cc: lorenz, joachim
Hi,
we have a very strange problem with SD-card-over-SPI support using
2.6.29.4 on our custom PowerPC 405 (Virtex-4 FX FPGA) based board. To
summarize the problem in one sentence: mmc_spi gets a timeout (error
-110) after sending MMC command "CMD10" (CID, card identification?).
The attached log file shows device registration messages during bootup
and debug/error messages after inserting a SD card.
ATM we are migrating from 2.6.26 (old arch/ppc-based, non-device-tree)
to the already mentioned version 2.6.29.4 (arch/powerpc, device tree).
We use Xilinx' opb_spi core (v1.00.e, EDK 9.1.02i) inside the FPGA,
which is connected to a SD card slot. With our old 2.6.26 kernel, SD
cards _are working fine_!.
To solve the problem, among other things, we tried 2.6.26+arch/powerpc
(applying only necessary patches to support/include SPI, MMC OF
bindings) - but the result is the same (error -110). The same is also
true for
2.6.28+arch/powerpc and Linus-HEAD+arch/powerpc . Then we checked these
patches, which add OF bindings for
SPI/MMC/..., line by line and did not find any hint.
For debugging we added a lot of printks ;-) and noticed that then there
are less timeouts (error -110), but CRC check errors (-EILSEQ,
mmc_spi.c, mmc_spi_readblock) happen - maybe even signal shifts/sampling
errors?
To complete confusion :-( the same setup (xilinx_spi+opb_spi) using an
ADS7846 touchscreen controller as SPI slave _does work_ correctly
Our current guess is, that it could be a more "basic" (?) error in
arch/powerpc . But we have no lead ATM.
Any hints? Does anybody use SD card support with mmc_spi+xilinx_spi ?
Joachim
--
for reference: relevant DTS entry:
opb_spi_0: spi@41240000 {
#address-cells = <1>;
#size-cells = <0>;
compatible = "xlnx,opb-spi-1.00.e";
reg = <0x41240000 0x10000>;
interrupt-parent = <&opb_intc_0>;
interrupts = <7 2>;
xlnx,depth = <0x10>;
xlnx,dev-blk-id = <0x4>;
xlnx,dev-mir-enable = <0x0>;
xlnx,family = "virtex4";
xlnx,fifo-exist = <0x1>;
xlnx,interrupt-present = <0x1>;
xlnx,ip-reg-bar-offset = <0x60>;
xlnx,num-bits-reg = <0x8>;
xlnx,num-bits-sr = <0x8>;
xlnx,num-offchip-ss-bits = <0x0>;
xlnx,num-ss-bits = <0x1>;
xlnx,occupancy-num-bits = <0x4>;
xlnx,spi-slave-only = <0x0>;
mmc-slot@0 {
compatible = "mmc-spi-slot";
reg = <0>;
gpios = <&opb_gpio_1 0 1>;
voltage-ranges = <3300 3300>;
spi-max-frequency = <6250000>;
};
};
dmesg during boot sequence, messages concerning SPI and MMC/SD only:
[ 30.677087] xilinx-xps-spi 41240000.spi: at 0x41240000 mapped to
0xC9040000, irq=18
[ 30.875967] mmc_spi spi32766.0: SD/MMC host mmc0, no WP, no poweroff,
cd polling
dmesg after inserting a SD card:
[ 105.375146] mmc0: clock 0Hz busmode 2 powermode 1 cs 1 Vdd 21 width 0
timing 0
[ 105.381246] mmc_spi spi32766.0: mmc_spi: power up (21)
[ 105.388286] mmc0: clock 400000Hz busmode 2 powermode 2 cs 1 Vdd 21
width 0 timing 0
[ 105.394839] mmc_spi spi32766.0: mmc_spi: power on (21)
[ 105.400197] mmc_spi spi32766.0: xilinx_spi_setup, unsupported mode
bits 4
[ 105.406601] mmc_spi spi32766.0: can't change chip-select polarity
[ 105.414666] mmc0: starting CMD0 arg 00000000 flags 000000c0
[ 105.419176] mmc_spi spi32766.0: mmc_spi: CMD0, resp R1
[ 105.424511] mmc_spi spi32766.0: xilinx_spi_setup, mode 0, 8 bits/w, 0
nsec/bit
[ 105.431557] mmc0: req done (CMD0): 0: 00000001 00000000 00000000
00000000
[ 105.439251] mmc0: starting CMD8 arg 000001aa flags 000002f5
[ 105.443770] mmc_spi spi32766.0: mmc_spi: CMD8, resp R3/R4/R7
[ 105.449740] mmc_spi spi32766.0: xilinx_spi_setup, mode 0, 8 bits/w, 0
nsec/bit
[ 105.456789] mmc0: req done (CMD8): 0: 00000001 000001aa 00000000
00000000
[ 105.463502] mmc0: starting CMD5 arg 00000000 flags 000002e1
[ 105.468999] mmc_spi spi32766.0: mmc_spi: CMD5, resp R3/R4/R7
[ 105.474968] mmc_spi spi32766.0: ... CMD5 response SPI_R3/R4/R: resp
0005 ffffffff
[ 105.482448] mmc_spi spi32766.0: xilinx_spi_setup, mode 0, 8 bits/w, 0
nsec/bit
[ 105.489606] mmc0: req done (CMD5): -22: 00000005 ffffffff 00000000
00000000
[ 105.496511] mmc0: starting CMD55 arg 00000000 flags 000000f5
[ 105.502092] mmc_spi spi32766.0: mmc_spi: CMD55, resp R1
[ 105.507645] mmc_spi spi32766.0: xilinx_spi_setup, mode 0, 8 bits/w, 0
nsec/bit
[ 105.514650] mmc0: req done (CMD55): 0: 00000001 00000000 00000000
00000000
[ 105.521476] mmc0: starting CMD41 arg 00000000 flags 000000e1
[ 105.527055] mmc_spi spi32766.0: mmc_spi: CMD41, resp R1
[ 105.532615] mmc_spi spi32766.0: xilinx_spi_setup, mode 0, 8 bits/w, 0
nsec/bit
[ 105.539646] mmc0: req done (CMD41): 0: 00000001 00000000 00000000
00000000
[ 105.546424] mmc0: starting CMD0 arg 00000000 flags 000000c0
[ 105.551986] mmc_spi spi32766.0: mmc_spi: CMD0, resp R1
[ 105.557387] mmc_spi spi32766.0: xilinx_spi_setup, mode 0, 8 bits/w, 0
nsec/bit
[ 105.564440] mmc0: req done (CMD0): 0: 00000001 00000000 00000000
00000000
[ 105.572158] mmc0: starting CMD58 arg 00000000 flags 00000280
[ 105.576741] mmc_spi spi32766.0: mmc_spi: CMD58, resp R3/R4/R7
[ 105.582795] mmc_spi spi32766.0: xilinx_spi_setup, mode 0, 8 bits/w, 0
nsec/bit
[ 105.589846] mmc0: req done (CMD58): 0: 00000001 00ff8000 00000000
00000000
[ 105.596650] mmc0: clock 400000Hz busmode 2 powermode 2 cs 1 Vdd 20
width 0 timing 0
[ 105.604258] mmc0: starting CMD0 arg 00000000 flags 000000c0
[ 105.609744] mmc_spi spi32766.0: mmc_spi: CMD0, resp R1
[ 105.615214] mmc_spi spi32766.0: xilinx_spi_setup, mode 0, 8 bits/w, 0
nsec/bit
[ 105.622217] mmc0: req done (CMD0): 0: 00000001 00000000 00000000
00000000
[ 105.629975] mmc0: starting CMD8 arg 000001aa flags 000002f5
[ 105.634459] mmc_spi spi32766.0: mmc_spi: CMD8, resp R3/R4/R7
[ 105.640457] mmc_spi spi32766.0: xilinx_spi_setup, mode 0, 8 bits/w, 0
nsec/bit
[ 105.647472] mmc0: req done (CMD8): 0: 00000001 000001aa 00000000
00000000
[ 105.654162] mmc0: starting CMD55 arg 00000000 flags 000000f5
[ 105.659796] mmc_spi spi32766.0: mmc_spi: CMD55, resp R1
[ 105.665301] mmc_spi spi32766.0: xilinx_spi_setup, mode 0, 8 bits/w, 0
nsec/bit
[ 105.672372] mmc0: req done (CMD55): 0: 00000001 00000000 00000000
00000000
[ 105.679157] mmc0: starting CMD41 arg 40000000 flags 000000e1
[ 105.684737] mmc_spi spi32766.0: mmc_spi: CMD41, resp R1
[ 105.690267] mmc_spi spi32766.0: xilinx_spi_setup, mode 0, 8 bits/w, 0
nsec/bit
[ 105.697327] mmc0: req done (CMD41): 0: 00000001 00000000 00000000
00000000
...
CMD55 + CMD41 repeated 3 times, same messages as above.
...
[ 105.895962] mmc0: starting CMD59 arg 00000001 flags 00000080
[ 105.901545] mmc_spi spi32766.0: mmc_spi: CMD59, resp R1
[ 105.907129] mmc_spi spi32766.0: xilinx_spi_setup, mode 0, 8 bits/w, 0
nsec/bit
[ 105.914091] mmc0: req done (CMD59): 0: 00000000 00000000 00000000
00000000
[ 105.920964] mmc0: starting CMD10 arg 00000000 flags 000000b5
[ 105.926517] mmc0: blksz 16 blocks 1 flags 00000200 tsac 0 ms nsac
64
[ 105.933195] mmc_spi spi32766.0: mmc_spi: CMD10, resp R1
[ 105.938693] mmc_spi spi32766.0: mmc_spi: read block, 16 bytes
[ 105.944823] mmc_spi spi32766.0: read error ffffff92 (-110)
[ 105.950015] mmc_spi spi32766.0: read status -110
[ 105.954579] mmc_spi spi32766.0: xilinx_spi_setup, mode 0, 8 bits/w, 0
nsec/bit
[ 105.961806] mmc0: req done (CMD10): 0: 00000000 00000000 00000000
00000000
[ 105.968609] mmc0: 0 bytes transferred: -110
[ 105.973082] mmc0: clock 0Hz busmode 2 powermode 0 cs 1 Vdd 0 width 0
timing 0
[ 105.980189] mmc_spi spi32766.0: mmc_spi: power off (0)
[ 105.985254] mmc0: error -110 whilst initialising SD card
^ permalink raw reply [flat|nested] 10+ messages in thread
* RE: SD card over (xilinx_)SPI, timeout error while CID
2009-06-05 15:34 SD card over (xilinx_)SPI, timeout error while CID Joachim Foerster
@ 2009-06-05 21:15 ` John Linn
2009-06-06 15:14 ` Peter Korsgaard
2009-06-09 17:26 ` Joachim Foerster
2 siblings, 0 replies; 10+ messages in thread
From: John Linn @ 2009-06-05 21:15 UTC (permalink / raw)
To: Joachim Foerster, linuxppc-dev, dbrownell; +Cc: lorenz, joachim
> -----Original Message-----
> From: Joachim Foerster [mailto:JOFT@gmx.de]
> Sent: Friday, June 05, 2009 9:34 AM
> To: linuxppc-dev@ozlabs.org; John Linn;
dbrownell@users.sourceforge.net
> Cc: lorenz@missinglinkelectronics.com;
joachim@missinglinkelectronics.com
> Subject: SD card over (xilinx_)SPI, timeout error while CID
> =
> Hi,
> =
> we have a very strange problem with SD-card-over-SPI support using
> 2.6.29.4 on our custom PowerPC 405 (Virtex-4 FX FPGA) based board. To
> summarize the problem in one sentence: mmc_spi gets a timeout (error
> -110) after sending MMC command "CMD10" (CID, card identification?).
> =
> The attached log file shows device registration messages during bootup
> and debug/error messages after inserting a SD card.
> =
> ATM we are migrating from 2.6.26 (old arch/ppc-based, non-device-tree)
> to the already mentioned version 2.6.29.4 (arch/powerpc, device tree).
> We use Xilinx' opb_spi core (v1.00.e, EDK 9.1.02i) inside the FPGA,
> which is connected to a SD card slot. With our old 2.6.26 kernel, SD
> cards _are working fine_!.
> =
> To solve the problem, among other things, we tried 2.6.26+arch/powerpc
> (applying only necessary patches to support/include SPI, MMC OF
> bindings) - but the result is the same (error -110). The same is also
> true for
> 2.6.28+arch/powerpc and Linus-HEAD+arch/powerpc . Then we checked
these
> patches, which add OF bindings for
> SPI/MMC/..., line by line and did not find any hint.
> For debugging we added a lot of printks ;-) and noticed that then
there
> are less timeouts (error -110), but CRC check errors (-EILSEQ,
> mmc_spi.c, mmc_spi_readblock) happen - maybe even signal
shifts/sampling
> errors?
> =
> To complete confusion :-( the same setup (xilinx_spi+opb_spi) using an
> ADS7846 touchscreen controller as SPI slave _does work_ correctly
> =
> Our current guess is, that it could be a more "basic" (?) error in
> arch/powerpc . But we have no lead ATM.
> =
> Any hints? Does anybody use SD card support with mmc_spi+xilinx_spi ?
> =
There were definitely some changes to the spi driver as I had to make it
use the device tree.
I have not tested with SD as I don't have a board with SD memory. I have
only tested
with a serial eeprom.
Sorry not much help. If I had to guess I would also think it might be
device tree related.
-- John
> Joachim
> =
> --
> for reference: relevant DTS entry:
> =
> opb_spi_0: spi@41240000 {
> #address-cells =3D <1>;
> #size-cells =3D <0>;
> =
> compatible =3D "xlnx,opb-spi-1.00.e";
> reg =3D <0x41240000 0x10000>;
> interrupt-parent =3D <&opb_intc_0>;
> interrupts =3D <7 2>;
> =
> xlnx,depth =3D <0x10>;
> xlnx,dev-blk-id =3D <0x4>;
> xlnx,dev-mir-enable =3D <0x0>;
> xlnx,family =3D "virtex4";
> xlnx,fifo-exist =3D <0x1>;
> xlnx,interrupt-present =3D <0x1>;
> xlnx,ip-reg-bar-offset =3D <0x60>;
> xlnx,num-bits-reg =3D <0x8>;
> xlnx,num-bits-sr =3D <0x8>;
> xlnx,num-offchip-ss-bits =3D <0x0>;
> xlnx,num-ss-bits =3D <0x1>;
> xlnx,occupancy-num-bits =3D <0x4>;
> xlnx,spi-slave-only =3D <0x0>;
> =
> mmc-slot@0 {
> compatible =3D "mmc-spi-slot";
> reg =3D <0>;
> gpios =3D <&opb_gpio_1 0 1>;
> voltage-ranges =3D <3300 3300>;
> spi-max-frequency =3D <6250000>;
> };
> };
> =
> dmesg during boot sequence, messages concerning SPI and MMC/SD only:
> =
> [ 30.677087] xilinx-xps-spi 41240000.spi: at 0x41240000 mapped to
> 0xC9040000, irq=3D18
> [ 30.875967] mmc_spi spi32766.0: SD/MMC host mmc0, no WP, no
poweroff,
> cd polling
> =
> dmesg after inserting a SD card:
> =
> [ 105.375146] mmc0: clock 0Hz busmode 2 powermode 1 cs 1 Vdd 21 width
0
> timing 0
> [ 105.381246] mmc_spi spi32766.0: mmc_spi: power up (21)
> [ 105.388286] mmc0: clock 400000Hz busmode 2 powermode 2 cs 1 Vdd 21
> width 0 timing 0
> [ 105.394839] mmc_spi spi32766.0: mmc_spi: power on (21)
> [ 105.400197] mmc_spi spi32766.0: xilinx_spi_setup, unsupported mode
> bits 4
> [ 105.406601] mmc_spi spi32766.0: can't change chip-select polarity
> [ 105.414666] mmc0: starting CMD0 arg 00000000 flags 000000c0
> [ 105.419176] mmc_spi spi32766.0: mmc_spi: CMD0, resp R1
> [ 105.424511] mmc_spi spi32766.0: xilinx_spi_setup, mode 0, 8 bits/w,
0
> nsec/bit
> [ 105.431557] mmc0: req done (CMD0): 0: 00000001 00000000 00000000
> 00000000
> [ 105.439251] mmc0: starting CMD8 arg 000001aa flags 000002f5
> [ 105.443770] mmc_spi spi32766.0: mmc_spi: CMD8, resp R3/R4/R7
> [ 105.449740] mmc_spi spi32766.0: xilinx_spi_setup, mode 0, 8 bits/w,
0
> nsec/bit
> [ 105.456789] mmc0: req done (CMD8): 0: 00000001 000001aa 00000000
> 00000000
> [ 105.463502] mmc0: starting CMD5 arg 00000000 flags 000002e1
> [ 105.468999] mmc_spi spi32766.0: mmc_spi: CMD5, resp R3/R4/R7
> [ 105.474968] mmc_spi spi32766.0: ... CMD5 response SPI_R3/R4/R:
resp
> 0005 ffffffff
> [ 105.482448] mmc_spi spi32766.0: xilinx_spi_setup, mode 0, 8 bits/w,
0
> nsec/bit
> [ 105.489606] mmc0: req done (CMD5): -22: 00000005 ffffffff 00000000
> 00000000
> [ 105.496511] mmc0: starting CMD55 arg 00000000 flags 000000f5
> [ 105.502092] mmc_spi spi32766.0: mmc_spi: CMD55, resp R1
> [ 105.507645] mmc_spi spi32766.0: xilinx_spi_setup, mode 0, 8 bits/w,
0
> nsec/bit
> [ 105.514650] mmc0: req done (CMD55): 0: 00000001 00000000 00000000
> 00000000
> [ 105.521476] mmc0: starting CMD41 arg 00000000 flags 000000e1
> [ 105.527055] mmc_spi spi32766.0: mmc_spi: CMD41, resp R1
> [ 105.532615] mmc_spi spi32766.0: xilinx_spi_setup, mode 0, 8 bits/w,
0
> nsec/bit
> [ 105.539646] mmc0: req done (CMD41): 0: 00000001 00000000 00000000
> 00000000
> [ 105.546424] mmc0: starting CMD0 arg 00000000 flags 000000c0
> [ 105.551986] mmc_spi spi32766.0: mmc_spi: CMD0, resp R1
> [ 105.557387] mmc_spi spi32766.0: xilinx_spi_setup, mode 0, 8 bits/w,
0
> nsec/bit
> [ 105.564440] mmc0: req done (CMD0): 0: 00000001 00000000 00000000
> 00000000
> [ 105.572158] mmc0: starting CMD58 arg 00000000 flags 00000280
> [ 105.576741] mmc_spi spi32766.0: mmc_spi: CMD58, resp R3/R4/R7
> [ 105.582795] mmc_spi spi32766.0: xilinx_spi_setup, mode 0, 8 bits/w,
0
> nsec/bit
> [ 105.589846] mmc0: req done (CMD58): 0: 00000001 00ff8000 00000000
> 00000000
> [ 105.596650] mmc0: clock 400000Hz busmode 2 powermode 2 cs 1 Vdd 20
> width 0 timing 0
> [ 105.604258] mmc0: starting CMD0 arg 00000000 flags 000000c0
> [ 105.609744] mmc_spi spi32766.0: mmc_spi: CMD0, resp R1
> [ 105.615214] mmc_spi spi32766.0: xilinx_spi_setup, mode 0, 8 bits/w,
0
> nsec/bit
> [ 105.622217] mmc0: req done (CMD0): 0: 00000001 00000000 00000000
> 00000000
> [ 105.629975] mmc0: starting CMD8 arg 000001aa flags 000002f5
> [ 105.634459] mmc_spi spi32766.0: mmc_spi: CMD8, resp R3/R4/R7
> [ 105.640457] mmc_spi spi32766.0: xilinx_spi_setup, mode 0, 8 bits/w,
0
> nsec/bit
> [ 105.647472] mmc0: req done (CMD8): 0: 00000001 000001aa 00000000
> 00000000
> [ 105.654162] mmc0: starting CMD55 arg 00000000 flags 000000f5
> [ 105.659796] mmc_spi spi32766.0: mmc_spi: CMD55, resp R1
> [ 105.665301] mmc_spi spi32766.0: xilinx_spi_setup, mode 0, 8 bits/w,
0
> nsec/bit
> [ 105.672372] mmc0: req done (CMD55): 0: 00000001 00000000 00000000
> 00000000
> [ 105.679157] mmc0: starting CMD41 arg 40000000 flags 000000e1
> [ 105.684737] mmc_spi spi32766.0: mmc_spi: CMD41, resp R1
> [ 105.690267] mmc_spi spi32766.0: xilinx_spi_setup, mode 0, 8 bits/w,
0
> nsec/bit
> [ 105.697327] mmc0: req done (CMD41): 0: 00000001 00000000 00000000
> 00000000
> ...
> CMD55 + CMD41 repeated 3 times, same messages as above.
> ...
> [ 105.895962] mmc0: starting CMD59 arg 00000001 flags 00000080
> [ 105.901545] mmc_spi spi32766.0: mmc_spi: CMD59, resp R1
> [ 105.907129] mmc_spi spi32766.0: xilinx_spi_setup, mode 0, 8 bits/w,
0
> nsec/bit
> [ 105.914091] mmc0: req done (CMD59): 0: 00000000 00000000 00000000
> 00000000
> [ 105.920964] mmc0: starting CMD10 arg 00000000 flags 000000b5
> [ 105.926517] mmc0: blksz 16 blocks 1 flags 00000200 tsac 0 ms
nsac
> 64
> [ 105.933195] mmc_spi spi32766.0: mmc_spi: CMD10, resp R1
> [ 105.938693] mmc_spi spi32766.0: mmc_spi: read block, 16 bytes
> [ 105.944823] mmc_spi spi32766.0: read error ffffff92 (-110)
> [ 105.950015] mmc_spi spi32766.0: read status -110
> [ 105.954579] mmc_spi spi32766.0: xilinx_spi_setup, mode 0, 8 bits/w,
0
> nsec/bit
> [ 105.961806] mmc0: req done (CMD10): 0: 00000000 00000000 00000000
> 00000000
> [ 105.968609] mmc0: 0 bytes transferred: -110
> [ 105.973082] mmc0: clock 0Hz busmode 2 powermode 0 cs 1 Vdd 0 width
0
> timing 0
> [ 105.980189] mmc_spi spi32766.0: mmc_spi: power off (0)
> [ 105.985254] mmc0: error -110 whilst initialising SD card
> =
> =
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^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: SD card over (xilinx_)SPI, timeout error while CID
2009-06-05 15:34 SD card over (xilinx_)SPI, timeout error while CID Joachim Foerster
2009-06-05 21:15 ` John Linn
@ 2009-06-06 15:14 ` Peter Korsgaard
2009-06-08 15:14 ` Lorenz Kolb
2009-06-09 17:26 ` Joachim Foerster
2 siblings, 1 reply; 10+ messages in thread
From: Peter Korsgaard @ 2009-06-06 15:14 UTC (permalink / raw)
To: Joachim Foerster; +Cc: joachim, linuxppc-dev, dbrownell, john.linn, lorenz
>>>>> "Joachim" == Joachim Foerster <JOFT@gmx.de> writes:
Hi,
Joachim> Any hints? Does anybody use SD card support with
Joachim> mmc_spi+xilinx_spi ?
I don't, but have you compared the spi signals on a scope in the 2
setups? Is timing significantly different?
--
Bye, Peter Korsgaard
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: SD card over (xilinx_)SPI, timeout error while CID
2009-06-06 15:14 ` Peter Korsgaard
@ 2009-06-08 15:14 ` Lorenz Kolb
0 siblings, 0 replies; 10+ messages in thread
From: Lorenz Kolb @ 2009-06-08 15:14 UTC (permalink / raw)
To: Peter Korsgaard
Cc: joachim, dbrownell, Joachim Foerster, lorenz, linuxppc-dev, john.linn
Peter Korsgaard wrote:
>>>>>> "Joachim" == Joachim Foerster <JOFT@gmx.de> writes:
>>>>>>
>
> Hi,
>
> Joachim> Any hints? Does anybody use SD card support with
> Joachim> mmc_spi+xilinx_spi ?
>
> I don't, but have you compared the spi signals on a scope in the 2
> setups? Is timing significantly different?
>
>
Hi,
we just tried to find differences for the timing with the oszi:
Here are to screenshots taken from the initial first few data bytes that are
communicated. At least at that time there does not seem to be any timing
issue.
2.6.26 using arch ppc and virtex-devices:
http://img145.imageshack.us/img145/9662/2626virtexdevices.jpg
2.6.29.4 using arch powerpc:
http://img145.imageshack.us/img145/9847/2629devtree.jpg
For explanation:
yellow = chan 1 = MOSI = trigger
green = chan 2 = chipselect not
blue = chan 3 = clock
red = chan 4 = MOSI
Looks like we're gonna have to switch to a logic analyzer
(with spi-mode sdcard analyzing support) as we cannot see any differences
in the short timeframe our oszi does measure, though checking the timing
does not look too promising.
We even configured the Xilinx-SPI core to go down to ~780 kHz just to be
safe,
did not help either.
Regards,
Lorenz
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: SD card over (xilinx_)SPI, timeout error while CID
2009-06-05 15:34 SD card over (xilinx_)SPI, timeout error while CID Joachim Foerster
2009-06-05 21:15 ` John Linn
2009-06-06 15:14 ` Peter Korsgaard
@ 2009-06-09 17:26 ` Joachim Foerster
2009-06-11 19:15 ` Ricardo Ribalda Delgado
[not found] ` <aa76a2be0906111215j15933053rf128f1985a982ca0__26561.0047536486$1244748319$gmane$org@mail.gmail.com>
2 siblings, 2 replies; 10+ messages in thread
From: Joachim Foerster @ 2009-06-09 17:26 UTC (permalink / raw)
To: linuxppc-dev; +Cc: lorenz, dbrownell, john.linn, joachim
Hi,
On Fri, 2009-06-05 at 17:34 +0200, Joachim Foerster wrote:
> we have a very strange problem with SD-card-over-SPI support using
> 2.6.29.4 on our custom PowerPC 405 (Virtex-4 FX FPGA) based board. To
> summarize the problem in one sentence: mmc_spi gets a timeout (error
> -110) after sending MMC command "CMD10" (CID, card identification?).
The problem seems to be these DMA transfers/methods (?), which are used
by mmc_spi, if spi->master->dev.parent->dma_mask is non-NULL in
mmc_spi_probe() .
We detected the problem in form of kind of "data loss/corruption" in
mmc_spi_readbytes() after spi_sync() is called. Data is received
correctly by xilinx_spi (and thus by spi_sync())!
Background: The CMD10 is the first "bigger" ;-) (16 bytes) block
transfer, where mmc_spi waits for the token 0xfe by calling
mmc_spi_skip() in the end and later on receives these 16 bytes. But the
token seems to be "lost/corrupted" and thus a timeout occurs.
For now our dirty workaround is, to remove DMA support by commenting out
the "if (spi->master->dev.parent->dma_mask)" block in mmc_spi_probe().
Note, that in the old 2.6.26+arch/ppc this dma_mask is NULL - so DMA
code is never activated in mmc_spi_probe()!
Conclusion: Either DMA code in mmc_spi has a bug OR dma_*() functions
have a bug OR the device tree setup code should not assign a dma_mask to
xilinx_spi devices?
Any hints? Where do we have to look in case there is something wrong in
device tree setup?
Joachim
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: SD card over (xilinx_)SPI, timeout error while CID
2009-06-09 17:26 ` Joachim Foerster
@ 2009-06-11 19:15 ` Ricardo Ribalda Delgado
[not found] ` <aa76a2be0906111215j15933053rf128f1985a982ca0__26561.0047536486$1244748319$gmane$org@mail.gmail.com>
1 sibling, 0 replies; 10+ messages in thread
From: Ricardo Ribalda Delgado @ 2009-06-11 19:15 UTC (permalink / raw)
To: Joachim Foerster
Cc: joachim, dbrownell, hp, lorenz, linuxppc-dev, mike, pierre,
jan.nikitenko, john.linn, linuxkernel
Hello,
It seems that I am facing the same problem!. I attach another trace
that also shows the sd I/O.
I have also commented out the dma line at probe and no better results....
As you point, the card is unable to reply the cid. But not only
that, after that failure the card replyies allways FF!!! So it seems
that after that command the card is "dead"
I have tried with spi modes 3 and 0, having the same results.
Best regards
[ 48.539108] irq: irq 16 on host
/plb@0/interrupt-controller@87000000 mapped to virtual irq 27
[ 48.570049] xilinx-xps-spi 8a000000.xps-spi: at 0x8A000000 mapped
to 0xD93A0000, irq=27
[ 48.600625] Xilinx SPI: change mode 0, 0 bits/w, 0 cs_high
[ 48.622642] Xilins SPI: cs off
[ 48.853914] Xilinx SPI: change mode 3, 8 bits/w, 0 cs_high
[ 48.875780] Xilins SPI: cs off
[ 48.895013] mmc_spi spi1.0: ASSUMING SPI bus stays unshared!
[ 48.921849] mmc0: clock 0Hz busmode 0 powermode 0 cs 0 Vdd 0 width 0 timing 0
[ 48.945429] mmc0: clock 0Hz busmode 2 powermode 1 cs 1 Vdd 21 width
0 timing 0
[ 48.968949] mmc_spi spi1.0: mmc_spi: power up (21)
[ 48.990098] mmc_spi spi1.0: SD/MMC host mmc0, no DMA, no WP, no
poweroff, cd polling
[ 49.014178] mmc0: clock 400000Hz busmode 2 powermode 2 cs 1 Vdd 21
width 0 timing 0
[ 49.038579] mmc_spi spi1.0: mmc_spi: power on (21)
[ 49.059543] Xilinx SPI: cs on
[ 49.078528] Spi Transfer at 0x8A000000
[ 49.098000] Sending 29 bytes
[ 49.099687] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 49.119458] roff ff ff ff ff ff ff ff ff ff ff ff ff
[ 49.161376] Received 29 bytes
[ 49.163329] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 49.183066] ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 49.218076] Xilinx SPI: cs on
[ 49.235595] Spi Transfer at 0x8A000000
[ 49.254150] Sending 10 bytes
[ 49.255804] ff ff ff ff ff ff ff ff ff ff
[ 49.289548] Received 10 bytes
[ 49.291330] ff ff ff ff ff ff ff ff ff ff
[ 49.324085] Xilinx SPI: change mode 7, 8 bits/w, 4 cs_high
[ 49.343351] Xilins SPI: cs off
[ 49.359698] Xilinx SPI: cs on
[ 49.375759] Spi Transfer at 0x8A000000
[ 49.392781] Sending 18 bytes
[ 49.394467] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 49.412181] ff ff
[ 49.441053] Received 18 bytes
[ 49.442834] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 49.460487] ff ff
[ 49.489213] Xilinx SPI: change mode 3, 8 bits/w, 0 cs_high
[ 49.507989] Xilins SPI: cs off
[ 49.524119] Xilinx SPI: change mode 3, 8 bits/w, 0 cs_high
[ 49.542881] Xilins SPI: cs off
[ 49.558995] mmc_spi spi1.0: mmc_spi: clock to 400000 Hz, 0
[ 49.592549] mmc0: starting CMD0 arg 00000000 flags 000000c0
[ 49.611249] mmc_spi spi1.0: mmc_spi: CMD0, resp R1
[ 49.629037] Xilinx SPI: cs on
[ 49.644017] Spi Transfer at 0x8A000000
[ 49.660436] Sending 17 bytes
[ 49.662539] ff 40 00 00 00 00 95 ff ff ff ff ff ff ff ff ff
[ 49.679625] ff
[ 49.706964] Received 17 bytes
[ 49.709175] ff ff ff ff ff ff ff ff 01 ff ff ff ff ff ff ff
[ 49.725994] ff
[ 49.752770] Xilinx SPI: change mode 3, 8 bits/w, 0 cs_high
[ 49.770409] Xilins SPI: cs off
[ 49.785069] mmc0: req done (CMD0): 0: 00000001 00000000 00000000 00000000
[ 49.804839] mmc0: starting CMD8 arg 000001aa flags 000002f5
[ 49.822469] mmc_spi spi1.0: mmc_spi: CMD8, resp R3/R4/R7
[ 49.839895] Xilinx SPI: cs on
[ 49.854839] Spi Transfer at 0x8A000000
[ 49.870638] Sending 21 bytes
[ 49.872294] ff 48 00 00 01 aa 87 ff ff ff ff ff ff ff ff ff
[ 49.889218] ff ff ff ff ff
[ 49.916288] Received 21 bytes
[ 49.918498] ff ff ff ff ff ff ff ff 01 00 00 01 aa ff ff ff
[ 49.935246] ff ff ff ff ff
[ 49.962416] Xilinx SPI: change mode 3, 8 bits/w, 0 cs_high
[ 49.980219] Xilins SPI: cs off
[ 49.995410] mmc0: req done (CMD8): 0: 00000001 000001aa 00000000 00000000
[ 50.014912] mmc0: starting CMD5 arg 00000000 flags 000002e1
[ 50.033278] mmc_spi spi1.0: mmc_spi: CMD5, resp R3/R4/R7
[ 50.051561] Xilinx SPI: cs on
[ 50.067193] Spi Transfer at 0x8A000000
[ 50.083948] Sending 21 bytes
[ 50.086041] ff 45 00 00 00 00 5b ff ff ff ff ff ff ff ff ff
[ 50.103588] ff ff ff ff ff
[ 50.132604] Received 21 bytes
[ 50.134387] ff ff ff ff ff ff ff ff 05 ff ff ff ff ff ff ff
[ 50.151844] ff ff ff ff ff
[ 50.180735] mmc_spi spi1.0: ... CMD5 response SPI_R3/R4/R: resp
0005 ffffffff
[ 50.201467] Xilinx SPI: change mode 3, 8 bits/w, 0 cs_high
[ 50.220507] Xilins SPI: cs off
[ 50.236890] mmc0: req done (CMD5): -22: 00000005 ffffffff 00000000 00000000
[ 50.257701] mmc0: starting CMD55 arg 00000000 flags 000000f5
[ 50.277204] mmc_spi spi1.0: mmc_spi: CMD55, resp R1
[ 50.296051] Xilinx SPI: cs on
[ 50.312639] Spi Transfer at 0x8A000000
[ 50.330024] Sending 17 bytes
[ 50.331710] ff 77 00 00 00 00 65 ff ff ff ff ff ff ff ff ff
[ 50.349786] ff
[ 50.379487] Received 17 bytes
[ 50.381697] ff ff ff ff ff ff ff ff 01 ff ff ff ff ff ff ff
[ 50.399768] ff
[ 50.429230] Xilinx SPI: change mode 3, 8 bits/w, 0 cs_high
[ 50.448429] Xilins SPI: cs off
[ 50.465013] mmc0: req done (CMD55): 0: 00000001 00000000 00000000 00000000
[ 50.485866] mmc0: starting CMD41 arg 00000000 flags 000000e1
[ 50.505616] mmc_spi spi1.0: mmc_spi: CMD41, resp R1
[ 50.524494] Xilinx SPI: cs on
[ 50.541042] Spi Transfer at 0x8A000000
[ 50.558421] Sending 17 bytes
[ 50.560106] ff 69 00 00 00 00 e5 ff ff ff ff ff ff ff ff ff
[ 50.578141] ff
[ 50.607645] Received 17 bytes
[ 50.609850] ff ff ff ff ff ff ff ff 01 ff ff ff ff ff ff ff
[ 50.627891] ff
[ 50.657292] Xilinx SPI: change mode 3, 8 bits/w, 0 cs_high
[ 50.676490] Xilins SPI: cs off
[ 50.693073] mmc0: req done (CMD41): 0: 00000001 00000000 00000000 00000000
[ 50.713950] mmc0: starting CMD0 arg 00000000 flags 000000c0
[ 50.733526] mmc_spi spi1.0: mmc_spi: CMD0, resp R1
[ 50.752333] Xilinx SPI: cs on
[ 50.768877] Spi Transfer at 0x8A000000
[ 50.786234] Sending 17 bytes
[ 50.787927] ff 40 00 00 00 00 95 ff ff ff ff ff ff ff ff ff
[ 50.805943] ff
[ 50.835559] Received 17 bytes
[ 50.837768] ff ff ff ff ff ff ff ff 00 ff ff ff ff ff ff ff
[ 50.855765] ff
[ 50.885197] Xilinx SPI: change mode 3, 8 bits/w, 0 cs_high
[ 50.904434] Xilins SPI: cs off
[ 50.921092] mmc0: req done (CMD0): 0: 00000000 00000000 00000000 00000000
[ 50.942690] mmc0: starting CMD58 arg 00000000 flags 00000280
[ 50.961863] mmc_spi spi1.0: mmc_spi: CMD58, resp R3/R4/R7
[ 50.981057] Xilinx SPI: cs on
[ 50.997358] Spi Transfer at 0x8A000000
[ 51.014356] Sending 21 bytes
[ 51.016048] ff 7a 00 00 00 00 fd ff ff ff ff ff ff ff ff ff
[ 51.033727] ff ff ff ff ff
[ 51.063147] Received 21 bytes
[ 51.065361] ff ff ff ff ff ff ff ff 00 00 7f 80 00 7f ff ff
[ 51.082985] ff ff ff ff ff
[ 51.111831] Xilinx SPI: change mode 3, 8 bits/w, 0 cs_high
[ 51.130578] Xilins SPI: cs off
[ 51.146636] mmc0: req done (CMD58): 0: 00000000 007f8000 00000000 00000000
[ 51.167049] mmc0: clock 400000Hz busmode 2 powermode 2 cs 1 Vdd 20
width 0 timing 0
[ 51.188667] mmc0: starting CMD0 arg 00000000 flags 000000c0
[ 51.208074] mmc_spi spi1.0: mmc_spi: CMD0, resp R1
[ 51.226728] Xilinx SPI: cs on
[ 51.243154] Spi Transfer at 0x8A000000
[ 51.260387] Sending 17 bytes
[ 51.262487] ff 40 00 00 00 00 95 ff ff ff ff ff ff ff ff ff
[ 51.280453] ff
[ 51.309719] Received 17 bytes
[ 51.311501] ff ff ff ff ff ff ff ff 00 ff ff ff ff ff ff ff
[ 51.329336] ff
[ 51.358446] Xilinx SPI: change mode 3, 8 bits/w, 0 cs_high
[ 51.377485] Xilins SPI: cs off
[ 51.393875] mmc0: req done (CMD0): 0: 00000000 00000000 00000000 00000000
[ 51.415465] mmc0: starting CMD8 arg 000001aa flags 000002f5
[ 51.434899] mmc_spi spi1.0: mmc_spi: CMD8, resp R3/R4/R7
[ 51.454224] Xilinx SPI: cs on
[ 51.470813] Spi Transfer at 0x8A000000
[ 51.488233] Sending 21 bytes
[ 51.490336] ff 48 00 00 01 aa 87 ff ff ff ff ff ff ff ff ff
[ 51.508496] ff ff ff ff ff
[ 51.538541] Received 21 bytes
[ 51.540323] ff ff ff ff ff ff ff ff 00 00 00 00 80 7f ff ff
[ 51.558375] ff ff ff ff ff
[ 51.588247] Xilinx SPI: change mode 3, 8 bits/w, 0 cs_high
[ 51.607401] Xilins SPI: cs off
[ 51.623861] mmc0: req done (CMD8): 0: 00000000 00000080 00000000 00000000
[ 51.644516] mmc0: starting CMD55 arg 00000000 flags 000000f5
[ 51.664028] mmc_spi spi1.0: mmc_spi: CMD55, resp R1
[ 51.682831] Xilinx SPI: cs on
[ 51.699284] Spi Transfer at 0x8A000000
[ 51.716597] Sending 17 bytes
[ 51.718281] ff 77 00 00 00 00 65 ff ff ff ff ff ff ff ff ff
[ 51.736204] ff
[ 51.765505] Received 17 bytes
[ 51.767288] ff ff ff ff ff ff ff ff 00 ff ff ff ff ff ff ff
[ 51.785197] ff
[ 51.814313] Xilinx SPI: change mode 3, 8 bits/w, 0 cs_high
[ 51.833614] Xilins SPI: cs off
[ 51.850111] mmc0: req done (CMD55): 0: 00000000 00000000 00000000 00000000
[ 51.870983] mmc0: starting CMD41 arg 00000000 flags 000000e1
[ 51.890595] mmc_spi spi1.0: mmc_spi: CMD41, resp R1
[ 51.909383] Xilinx SPI: cs on
[ 51.925698] Spi Transfer at 0x8A000000
[ 51.942753] Sending 17 bytes
[ 51.944443] ff 69 00 00 00 00 e5 ff ff ff ff ff ff ff ff ff
[ 51.962122] ff
[ 51.990760] Received 17 bytes
[ 51.992969] ff ff ff ff ff ff ff ff 00 ff ff ff ff ff ff ff
[ 52.010627] ff
[ 52.039135] Xilinx SPI: change mode 3, 8 bits/w, 0 cs_high
[ 52.057943] Xilins SPI: cs off
[ 52.074081] mmc0: req done (CMD41): 0: 00000000 00000000 00000000 00000000
[ 52.094569] mmc0: starting CMD10 arg 00000000 flags 000000b5
[ 52.113755] mmc0: blksz 16 blocks 1 flags 00000200 tsac 0 ms nsac 64
[ 52.134240] mmc_spi spi1.0: mmc_spi: CMD10, resp R1
[ 52.152922] Xilinx SPI: cs on
[ 52.169228] Spi Transfer at 0x8A000000
[ 52.186386] Sending 9 bytes
[ 52.187978] ff 4a 00 00 00 00 1b ff ff
[ 52.218225] Received 9 bytes
[ 52.219911] ff ff ff ff ff ff ff ff 00
[ 52.249970] mmc_spi spi1.0: mmc_spi: read block, 16 bytes
[ 52.269009] Xilinx SPI: cs on
[ 52.285210] Spi Transfer at 0x8A000000
[ 52.302276] Sending 1 bytes
[ 52.303867] ff
[ 52.332598] Received 1 bytes
[ 52.334287] ff
[ 52.362345] Xilinx SPI: cs on
[ 52.377675] Spi Transfer at 0x8A000000
[ 52.393815] Sending 1 bytes
[ 52.395408] ff
[ 52.422215] Received 1 bytes
[ 52.423901] ff
[ 52.450210] mmc_spi spi1.0: read error ffffff92 (-110)
[ 52.467376] mmc_spi spi1.0: read status -110
[ 52.483642] Xilinx SPI: change mode 3, 8 bits/w, 0 cs_high
[ 52.501298] Xilins SPI: cs off
[ 52.516304] mmc0: req done (CMD10): 0: 00000000 00000000 00000000 00000000
[ 52.535655] mmc0: 0 bytes transferred: -110
[ 52.552762] mmc0: clock 0Hz busmode 2 powermode 0 cs 1 Vdd 0 width 0 timing 0
[ 52.572513] mmc_spi spi1.0: mmc_spi: power off (0)
[ 52.589792] mmc0: error -110 whilst initialising SD card
[ 52.607573] mmc0: clock 0Hz busmode 2 powermode 0 cs 1 Vdd 0 width 0 timing 0
[ 53.624548] mmc0: clock 0Hz busmode 2 powermode 1 cs 1 Vdd 21 width
0 timing 0
[ 53.644565] mmc_spi spi1.0: mmc_spi: power up (21)
[ 53.676546] mmc0: clock 400000Hz busmode 2 powermode 2 cs 1 Vdd 21
width 0 timing 0
[ 53.697303] mmc_spi spi1.0: mmc_spi: power on (21)
[ 53.715149] Xilinx SPI: cs on
[ 53.730775] Spi Transfer at 0x8A000000
[ 53.747808] Sending 29 bytes
[ 53.749948] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 53.767622] ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 53.798870] Received 29 bytes
[ 53.801072] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 53.818374] ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 53.848277] Xilinx SPI: cs on
[ 53.863238] Spi Transfer at 0x8A000000
[ 53.879061] Sending 10 bytes
[ 53.881166] ff ff ff ff ff ff ff ff ff ff
[ 53.909364] Received 10 bytes
[ 53.911147] ff ff ff ff ff ff ff ff ff ff
[ 53.939310] Xilinx SPI: change mode 7, 8 bits/w, 4 cs_high
[ 53.957098] Xilins SPI: cs off
[ 53.972202] Xilinx SPI: cs on
[ 53.986965] Spi Transfer at 0x8A000000
[ 54.002665] Sending 18 bytes
[ 54.004355] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 54.021148] ff ff
[ 54.047531] Received 18 bytes
[ 54.049733] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 54.066437] ff ff
[ 54.093333] Xilinx SPI: change mode 3, 8 bits/w, 0 cs_high
[ 54.111278] Xilins SPI: cs off
[ 54.140548] mmc0: starting CMD0 arg 00000000 flags 000000c0
[ 54.158933] mmc_spi spi1.0: mmc_spi: CMD0, resp R1
[ 54.176873] Xilinx SPI: cs on
[ 54.192659] Spi Transfer at 0x8A000000
[ 54.209382] Sending 17 bytes
[ 54.211069] ff 40 00 00 00 00 95 ff ff ff ff ff ff ff ff ff
[ 54.228464] ff
[ 54.256364] Received 17 bytes
[ 54.258571] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 54.275654] ff
[ 54.302586] Xilinx SPI: cs on
[ 54.317336] Spi Transfer at 0x8A000000
[ 54.332830] Sending 1 bytes
[ 54.334422] ff
[ 54.359834] Received 1 bytes
[ 54.361977] ff
[ 54.386246] Xilinx SPI: cs on
[ 54.399699] Spi Transfer at 0x8A000000
[ 54.414165] Sending 1 bytes
[ 54.415758] ff
[ 54.439100] Received 1 bytes
[ 54.441213] ff
[ 54.464491] Xilinx SPI: cs on
[ 54.477571] Spi Transfer at 0x8A000000
[ 54.491746] Sending 1 bytes
[ 54.493754] ff
[ 54.516871] Received 1 bytes
[ 54.518557] ff
[ 54.541114] Xilinx SPI: cs on
[ 54.554112] Spi Transfer at 0x8A000000
[ 54.568070] Sending 1 bytes
[ 54.570080] ff
[ 54.592080] Received 1 bytes
[ 54.594181] ff
[ 54.616269] Xilinx SPI: cs on
[ 54.628831] Spi Transfer at 0x8A000000
[ 54.642295] Sending 1 bytes
[ 54.643890] ff
[ 54.665424] Received 1 bytes
[ 54.667113] ff
[ 54.688185] Xilinx SPI: cs on
[ 54.700264] Spi Transfer at 0x8A000000
[ 54.713168] Sending 1 bytes
[ 54.714763] ff
[ 54.734877] Received 1 bytes
[ 54.736982] ff
[ 54.756293] Xilinx SPI: cs on
[ 54.767659] Spi Transfer at 0x8A000000
[ 54.779759] Sending 1 bytes
[ 54.781760] ff
[ 54.800685] Received 1 bytes
[ 54.802373] ff
[ 54.820845] Xilinx SPI: cs on
[ 54.831765] Spi Transfer at 0x8A000000
[ 54.843523] Sending 1 bytes
[ 54.845534] ff
[ 54.863879] Received 1 bytes
[ 54.865974] ff
[ 54.884263] Xilinx SPI: cs on
[ 54.895068] Spi Transfer at 0x8A000000
[ 54.906798] Sending 1 bytes
[ 54.908395] ff
[ 54.926629] Received 1 bytes
[ 54.928318] ff
[ 54.946533] Xilinx SPI: cs on
[ 54.957309] Spi Transfer at 0x8A000000
[ 54.969152] Sending 1 bytes
[ 54.970749] ff
[ 54.988934] Received 1 bytes
[ 54.990621] ff
[ 55.008869] Xilinx SPI: cs on
[ 55.019781] Spi Transfer at 0x8A000000
[ 55.031652] Sending 1 bytes
[ 55.033656] ff
[ 55.052030] Received 1 bytes
[ 55.054132] ff
[ 55.072395] Xilinx SPI: cs on
[ 55.083339] Spi Transfer at 0x8A000000
[ 55.095103] Sending 1 bytes
[ 55.097114] ff
[ 55.115411] Received 1 bytes
[ 55.117515] ff
[ 55.135872] Xilinx SPI: cs on
[ 55.146757] Spi Transfer at 0x8A000000
[ 55.158515] Sending 1 bytes
[ 55.160113] ff
[ 55.178455] Received 1 bytes
[ 55.180147] ff
[ 55.198506] Xilinx SPI: cs on
[ 55.209369] Spi Transfer at 0x8A000000
[ 55.221281] Sending 1 bytes
[ 55.222873] ff
[ 55.241289] Received 1 bytes
[ 55.242978] ff
[ 55.261376] Xilinx SPI: change mode 3, 8 bits/w, 0 cs_high
[ 55.274774] Xilins SPI: cs off
[ 55.286183] mmc0: req done (CMD0): -110: 00000000 00000000 00000000 00000000
[ 55.303059] mmc0: starting CMD8 arg 000001aa flags 000002f5
[ 55.317605] mmc_spi spi1.0: mmc_spi: CMD8, resp R3/R4/R7
[ 55.332234] Xilinx SPI: cs on
[ 55.344288] Spi Transfer at 0x8A000000
[ 55.357357] Sending 21 bytes
[ 55.359048] ff 48 00 00 01 aa 87 ff ff ff ff ff ff ff ff ff
[ 55.373268] ff ff ff ff ff
[ 55.395064] Received 21 bytes
[ 55.397272] ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff
[ 55.411374] ff ff ff ff ff
[ 55.433854] Xilinx SPI: cs on
[ 55.446394] Spi Transfer at 0x8A000000
[ 55.459800] Sending 1 bytes
[ 55.461818] ff
[ 55.483642] Received 1 bytes
[ 55.485751] ff
[ 55.507455] Xilinx SPI: cs on
[ 55.520004] Spi Transfer at 0x8A000000
[ 55.533515] Sending 1 bytes
[ 55.535105] ff
[ 55.556813] Received 1 bytes
[ 55.558502] ff
[ 55.580275] Xilinx SPI: cs on
[ 55.592791] Spi Transfer at 0x8A000000
[ 55.606171] Sending 1 bytes
[ 55.607768] ff
[ 55.629567] Received 1 bytes
[ 55.631260] ff
[ 55.653122] Xilinx SPI: cs on
[ 55.665601] Spi Transfer at 0x8A000000
[ 55.679005] Sending 1 bytes
[ 55.681015] ff
[ 55.702801] Received 1 bytes
[ 55.704492] ff
[ 55.726140] Xilinx SPI: cs on
[ 55.738660] Spi Transfer at 0x8A000000
[ 55.752158] Sending 1 bytes
[ 55.754162] ff
[ 55.775802] Received 1 bytes
[ 55.777912] ff
[ 55.799564] Xilinx SPI: cs on
[ 55.811801] Spi Transfer at 0x8A000000
[ 55.824923] Sending 1 bytes
[ 55.826514] ff
[ 55.846619] Received 1 bytes
[ 55.848304] ff
[ 55.867579] Xilinx SPI: cs on
[ 55.878762] Spi Transfer at 0x8A000000
[ 55.890810] Sending 1 bytes
[ 55.892404] ff
[ 55.911203] Received 1 bytes
[ 55.913311] ff
[ 55.931740] Xilinx SPI: cs on
[ 55.942575] Spi Transfer at 0x8A000000
[ 55.954480] Sending 1 bytes
[ 55.956073] ff
[ 55.974448] Received 1 bytes
[ 55.976134] ff
[ 55.994486] Xilinx SPI: cs on
[ 56.005406] Spi Transfer at 0x8A000000
[ 56.017305] Sending 1 bytes
[ 56.018894] ff
[ 56.037248] Received 1 bytes
[ 56.038924] ff
[ 56.057282] Xilinx SPI: cs on
--
Ricardo Ribalda
http://www.eps.uam.es/~rribalda/
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: SD card over (xilinx_)SPI, timeout error while CID
[not found] ` <aa76a2be0906111215j15933053rf128f1985a982ca0__26561.0047536486$1244748319$gmane$org@mail.gmail.com>
@ 2009-06-11 20:05 ` Lorenz Kolb
2009-06-11 20:49 ` Ricardo Ribalda Delgado
0 siblings, 1 reply; 10+ messages in thread
From: Lorenz Kolb @ 2009-06-11 20:05 UTC (permalink / raw)
To: Ricardo Ribalda Delgado
Cc: joachim, dbrownell, Joachim Foerster, hp, lorenz, linuxppc-dev,
mike, pierre, jan.nikitenko, john.linn, linuxkernel
Hello,
Ricardo Ribalda Delgado wrote:
> Hello,
>
> It seems that I am facing the same problem!. I attach another trace
> that also shows the sd I/O.
Is the I/O logged from within the Xilinx-SPI-Driver or from within the
mmc-spi-layer?
The response to CMD10 seems quite strange to me. The R1 answer to that
command says that everything is OK, so what is done next is that the
0xfe token will be expected by the mmc-spi-layer. Obviously that one is
not received within the proper time (assuming your data-logging was done
from within xilinx-spi-driver). Also be aware of printk() taking
milliseconds for printing to console, within time critical routines that
might not be the best choice for debugging.
What frequency does Your SPI-Bus use?
Also double check to completely disable the whole
if (spi->master->dev.parent->dma_mask) {
...
}
block within mmc_spi_probe(). That worked for us (as we already said as
an ugly workaround).
Regards,
Lorenz
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: SD card over (xilinx_)SPI, timeout error while CID
2009-06-11 20:05 ` Lorenz Kolb
@ 2009-06-11 20:49 ` Ricardo Ribalda Delgado
2009-06-11 21:07 ` Wolfgang Denk
0 siblings, 1 reply; 10+ messages in thread
From: Ricardo Ribalda Delgado @ 2009-06-11 20:49 UTC (permalink / raw)
To: Lorenz Kolb
Cc: joachim, dbrownell, Joachim Foerster, hp, linuxppc-dev, mike,
pierre, jan.nikitenko, john.linn, linuxkernel
Hello
Thanks for your reply
> Is the I/O logged from within the Xilinx-SPI-Driver or from within the
> mmc-spi-layer?
It is take from inside the spi driver.
>
> The response to CMD10 seems quite strange to me. The R1 answer to that
> command says that everything is OK, so what is done next is that the 0xfe
> token will be expected by the mmc-spi-layer. Obviously that one is not
> received within the proper time (assuming your data-logging was done from
> within xilinx-spi-driver). Also be aware of printk() taking milliseconds =
for
> printing to console, within time critical routines that might not be the
> best choice for debugging.
I will retry tomorrow removing all the spi debug and report what happens.
>
> What frequency does Your SPI-Bus use?
>
33Mhz.... arghh. just checked is over the standard... Tomorrow I will
test with a slower clk
>
> Also double check to completely disable the whole
>
> =A0if (spi->master->dev.parent->dma_mask) {
> =A0 =A0...
> =A0}
>
Tomorow morning i will double check it, but it was something we
removed from the very begining (we dont have dma for the spi and we
suppose it was an error) In my last log check:
[ 48.990098] mmc_spi spi1.0: SD/MMC host mmc0, no DMA, no WP, no
poweroff, cd polling
Anyway the problem is definitely here:
[ 52.094569] mmc0: starting CMD10 arg 00000000 flags 000000b5
[ 52.113755] mmc0: blksz 16 blocks 1 flags 00000200 tsac 0 ms nsac 64
[ 52.134240] mmc_spi spi1.0: mmc_spi: CMD10, resp R1
[ 52.152922] Xilinx SPI: cs on
[ 52.169228] Spi Transfer at 0x8A000000
[ 52.186386] Sending 9 bytes
[ 52.187978] ff 4a 00 00 00 00 1b ff ff
[ 52.218225] Received 9 bytes
[ 52.219911] ff ff ff ff ff ff ff ff 00
[ 52.249970] mmc_spi spi1.0: mmc_spi: read block, 16 bytes
[ 52.269009] Xilinx SPI: cs on
[ 52.285210] Spi Transfer at 0x8A000000
[ 52.302276] Sending 1 bytes
[ 52.303867] ff
[ 52.332598] Received 1 bytes
[ 52.334287] ff
[ 52.362345] Xilinx SPI: cs on
[ 52.377675] Spi Transfer at 0x8A000000
[ 52.393815] Sending 1 bytes
[ 52.395408] ff
[ 52.422215] Received 1 bytes
[ 52.423901] ff
It tries to read the cid and the only thing it get from the sd back
are 0xff. I have made it loop without timeout and I keep receiving
0xff
Also after the cid read the sd card dont reply to any command....
weird. lets see tomorrow with a slower clk.
Thanks for your commends
Best regards
--=20
Ricardo Ribalda
http://www.eps.uam.es/~rribalda/
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: SD card over (xilinx_)SPI, timeout error while CID
2009-06-11 20:49 ` Ricardo Ribalda Delgado
@ 2009-06-11 21:07 ` Wolfgang Denk
2009-06-11 21:16 ` Ricardo Ribalda Delgado
0 siblings, 1 reply; 10+ messages in thread
From: Wolfgang Denk @ 2009-06-11 21:07 UTC (permalink / raw)
To: Ricardo Ribalda Delgado
Cc: jan.nikitenko, Lorenz Kolb, dbrownell, Joachim Foerster, hp,
linuxppc-dev, mike, pierre, joachim, john.linn, linuxkernel
Dear Ricardo Ribalda Delgado,
In message <aa76a2be0906111349s2ff947eo35149ef14e29d05a@mail.gmail.com> you wrote:
>
> > What frequency does Your SPI-Bus use?
>
> 33Mhz.... arghh. just checked is over the standard... Tomorrow I will
> test with a slower clk
Just some really stupid questions:
This is with a 4xx core, right? Is this the same SPI controller design
like in AMCC's 40x and 44x cores, i. e. with a "FIFO" of depth 1?
Assuming you're running your SPI clock at 1 MHz, you get one data
byte and thus one interrupt at a rate of 125 kHz. I doubt your CPU
can handle such a load?
Best regards,
Wolfgang Denk
--
DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd@denx.de
A witty saying proves nothing, but saying something pointless gets
people's attention.
^ permalink raw reply [flat|nested] 10+ messages in thread
* Re: SD card over (xilinx_)SPI, timeout error while CID
2009-06-11 21:07 ` Wolfgang Denk
@ 2009-06-11 21:16 ` Ricardo Ribalda Delgado
0 siblings, 0 replies; 10+ messages in thread
From: Ricardo Ribalda Delgado @ 2009-06-11 21:16 UTC (permalink / raw)
To: Wolfgang Denk
Cc: jan.nikitenko, Lorenz Kolb, dbrownell, Joachim Foerster, hp,
linuxppc-dev, mike, pierre, joachim, john.linn, linuxkernel
Hello Wolfgang
>
> This is with a 4xx core, right? Is this the same SPI controller design
> like in AMCC's 40x and 44x cores, i. e. with a "FIFO" of depth 1?
It is a ppc440 but it is does not have ans spi controller as in the
amcc. The spi controller is a xilinx core allocated at the plb bus,
including a deeper fifo.
The actual version does not have a sustained speed of 33Mhz but a can
have a peak speed of 33 MHz
Thanks for your comment
--
Ricardo Ribalda
http://www.eps.uam.es/~rribalda/
^ permalink raw reply [flat|nested] 10+ messages in thread
end of thread, other threads:[~2009-06-11 21:17 UTC | newest]
Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2009-06-05 15:34 SD card over (xilinx_)SPI, timeout error while CID Joachim Foerster
2009-06-05 21:15 ` John Linn
2009-06-06 15:14 ` Peter Korsgaard
2009-06-08 15:14 ` Lorenz Kolb
2009-06-09 17:26 ` Joachim Foerster
2009-06-11 19:15 ` Ricardo Ribalda Delgado
[not found] ` <aa76a2be0906111215j15933053rf128f1985a982ca0__26561.0047536486$1244748319$gmane$org@mail.gmail.com>
2009-06-11 20:05 ` Lorenz Kolb
2009-06-11 20:49 ` Ricardo Ribalda Delgado
2009-06-11 21:07 ` Wolfgang Denk
2009-06-11 21:16 ` Ricardo Ribalda Delgado
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