* [U-Boot] SPI flash on Altera socfpga
@ 2015-04-20 8:36 Pavel Machek
2015-04-20 8:41 ` Marek Vasut
2015-04-20 8:42 ` Stefan Roese
0 siblings, 2 replies; 7+ messages in thread
From: Pavel Machek @ 2015-04-20 8:36 UTC (permalink / raw)
To: u-boot
Hi!
I see that u-boot 2015.04 has SPI flash configured in the
socfpga_cyclone5_socrates.dts. But as far as I know, socdk should have
same SPI flash, right? Should similar dts part be enabled there, too?
I tried to get the support to work on custom board, but was not
successful so far. Does it work for you, or are still some parts
missing?
Best regards,
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
^ permalink raw reply [flat|nested] 7+ messages in thread
* [U-Boot] SPI flash on Altera socfpga
2015-04-20 8:36 [U-Boot] SPI flash on Altera socfpga Pavel Machek
@ 2015-04-20 8:41 ` Marek Vasut
2015-04-20 9:24 ` Pavel Machek
2015-04-20 8:42 ` Stefan Roese
1 sibling, 1 reply; 7+ messages in thread
From: Marek Vasut @ 2015-04-20 8:41 UTC (permalink / raw)
To: u-boot
On Monday, April 20, 2015 at 10:36:09 AM, Pavel Machek wrote:
> Hi!
>
> I see that u-boot 2015.04 has SPI flash configured in the
> socfpga_cyclone5_socrates.dts. But as far as I know, socdk should have
> same SPI flash, right? Should similar dts part be enabled there, too?
>
> I tried to get the support to work on custom board, but was not
> successful so far. Does it work for you, or are still some parts
> missing?
Which SPI flash are you talking about -- QSPI one or EPCS/EPCQ one ?
I think Stefan got the QSPI one working. EPCQ is a bit trickier.
Best regards,
Marek Vasut
^ permalink raw reply [flat|nested] 7+ messages in thread
* [U-Boot] SPI flash on Altera socfpga
2015-04-20 8:36 [U-Boot] SPI flash on Altera socfpga Pavel Machek
2015-04-20 8:41 ` Marek Vasut
@ 2015-04-20 8:42 ` Stefan Roese
1 sibling, 0 replies; 7+ messages in thread
From: Stefan Roese @ 2015-04-20 8:42 UTC (permalink / raw)
To: u-boot
Hi Pavel,
On 20.04.2015 10:36, Pavel Machek wrote:
> I see that u-boot 2015.04 has SPI flash configured in the
> socfpga_cyclone5_socrates.dts. But as far as I know, socdk should have
> same SPI flash, right? Should similar dts part be enabled there, too?
SPI NOR flash is working for me on SoCrates and another similar custom
SOCFPGA based board just fine.
> I tried to get the support to work on custom board, but was not
> successful so far. Does it work for you, or are still some parts
> missing?
Not that I know of. What are the problems that you experience?
Thanks,
Stefan
^ permalink raw reply [flat|nested] 7+ messages in thread
* [U-Boot] SPI flash on Altera socfpga
2015-04-20 8:41 ` Marek Vasut
@ 2015-04-20 9:24 ` Pavel Machek
2015-04-20 9:43 ` Stefan Roese
0 siblings, 1 reply; 7+ messages in thread
From: Pavel Machek @ 2015-04-20 9:24 UTC (permalink / raw)
To: u-boot
Hi!
> > I see that u-boot 2015.04 has SPI flash configured in the
> > socfpga_cyclone5_socrates.dts. But as far as I know, socdk should have
> > same SPI flash, right? Should similar dts part be enabled there, too?
> >
> > I tried to get the support to work on custom board, but was not
> > successful so far. Does it work for you, or are still some parts
> > missing?
>
> Which SPI flash are you talking about -- QSPI one or EPCS/EPCQ one ?
>
> I think Stefan got the QSPI one working. EPCQ is a bit trickier.
Datasheet mentions QSPI_IO*/CLK/SS* pins, so I assume it is QSPI.
> On 20.04.2015 10:36, Pavel Machek wrote:
> >I see that u-boot 2015.04 has SPI flash configured in the
> >socfpga_cyclone5_socrates.dts. But as far as I know, socdk should have
> >same SPI flash, right? Should similar dts part be enabled there, too?
>
> SPI NOR flash is working for me on SoCrates and another similar custom
> SOCFPGA based board just fine.
Thanks, that's useful to know.
> >I tried to get the support to work on custom board, but was not
> >successful so far. Does it work for you, or are still some parts
> >missing?
>
> Not that I know of. What are the problems that you experience?
For tests, I've used config similar to socrates, even through the
board should be more similar to socdk:
U-Boot 2015.04-rc4-00103-gef7e76c-dirty (Apr 20 2015 - 10:24:33)
CPU: Altera SoCFPGA Platform
Watchdog enabled
I2C: ready
DRAM: 256 MiB
MMC: SOCFPGA DWMMC: 0
Using default environment
In: serial
Out: serial
Err: serial
Model: EBV SOCrates
Net: dwmac.ff702000
Hit any key to stop autoboot: 0
=> sf probe
Invalid chip select 0:0 (err=-19)
SF: Failed to set up slave
Failed to initialize SPI flash at 0:0
=>
One thing that puzzles me:
./arch/arm/dts/socfpga_cyclone5_socrates.dts: flash0: n25q00 at 0 {
./arch/arm/dts/socfpga_cyclone5_socrates.dts: compatible = "n25q00";
..but I see no mention of that compatible string anywhere
else. 2013-altera u-boot used ./drivers/mtd/spi/stmicro.c to handle
it...
Best regards,
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
^ permalink raw reply [flat|nested] 7+ messages in thread
* [U-Boot] SPI flash on Altera socfpga
2015-04-20 9:24 ` Pavel Machek
@ 2015-04-20 9:43 ` Stefan Roese
2015-04-20 11:58 ` [U-Boot] SPI flash only works after sspi command (was Re: SPI flash on Altera socfpga) Pavel Machek
2015-04-22 9:19 ` [U-Boot] SPI flash on Altera socfpga Stefan Roese
0 siblings, 2 replies; 7+ messages in thread
From: Stefan Roese @ 2015-04-20 9:43 UTC (permalink / raw)
To: u-boot
On 20.04.2015 11:24, Pavel Machek wrote:
>> Which SPI flash are you talking about -- QSPI one or EPCS/EPCQ one ?
>>
>> I think Stefan got the QSPI one working. EPCQ is a bit trickier.
>
> Datasheet mentions QSPI_IO*/CLK/SS* pins, so I assume it is QSPI.
Yes, QSPI handles the SPI NOR flash chips on SoCFPGA.
>> On 20.04.2015 10:36, Pavel Machek wrote:
>>> I see that u-boot 2015.04 has SPI flash configured in the
>>> socfpga_cyclone5_socrates.dts. But as far as I know, socdk should have
>>> same SPI flash, right? Should similar dts part be enabled there, too?
>>
>> SPI NOR flash is working for me on SoCrates and another similar custom
>> SOCFPGA based board just fine.
>
> Thanks, that's useful to know.
>
>>> I tried to get the support to work on custom board, but was not
>>> successful so far. Does it work for you, or are still some parts
>>> missing?
>>
>> Not that I know of. What are the problems that you experience?
>
> For tests, I've used config similar to socrates, even through the
> board should be more similar to socdk:
>
> U-Boot 2015.04-rc4-00103-gef7e76c-dirty (Apr 20 2015 - 10:24:33)
>
> CPU: Altera SoCFPGA Platform
> Watchdog enabled
> I2C: ready
> DRAM: 256 MiB
> MMC: SOCFPGA DWMMC: 0
> Using default environment
>
> In: serial
> Out: serial
> Err: serial
> Model: EBV SOCrates
> Net: dwmac.ff702000
> Hit any key to stop autoboot: 0
> => sf probe
> Invalid chip select 0:0 (err=-19)
> SF: Failed to set up slave
> Failed to initialize SPI flash at 0:0
> =>
IIRC, then the aliases in the dts are very important for this:
aliases {
spi0 = "/spi at ff705000"; /* QSPI */
...
Did you add those to your dts as well?
> One thing that puzzles me:
>
> ./arch/arm/dts/socfpga_cyclone5_socrates.dts: flash0: n25q00 at 0 {
> ./arch/arm/dts/socfpga_cyclone5_socrates.dts: compatible = "n25q00";
>
> ..but I see no mention of that compatible string anywhere
> else. 2013-altera u-boot used ./drivers/mtd/spi/stmicro.c to handle
> it...
IIRC, the flash detection is done via autodetection by reading the
parameters from the chip itself.
Thanks,
Stefan
^ permalink raw reply [flat|nested] 7+ messages in thread
* [U-Boot] SPI flash only works after sspi command (was Re: SPI flash on Altera socfpga)
2015-04-20 9:43 ` Stefan Roese
@ 2015-04-20 11:58 ` Pavel Machek
2015-04-22 9:19 ` [U-Boot] SPI flash on Altera socfpga Stefan Roese
1 sibling, 0 replies; 7+ messages in thread
From: Pavel Machek @ 2015-04-20 11:58 UTC (permalink / raw)
To: u-boot
Hi!
> IIRC, then the aliases in the dts are very important for this:
>
> aliases {
> spi0 = "/spi at ff705000"; /* QSPI */
> ...
>
> Did you add those to your dts as well?
I was using socrates dts for the moment, to keep diffs small. Suddenly
it started working.. and stopped working after reset. Now I realized
what is going on:
=> sf probe
Invalid chip select 0:0 (err=-19)
SF: Failed to set up slave
Failed to initialize SPI flash at 0:0
=> sf probe 0 0 0
Invalid chip select 0:0 (err=-19)
SF: Failed to set up slave
Failed to initialize SPI flash at 0:0
=> sspi
QSPI: Error, command is empty.
Error -1 during SPI transaction
=> sf probe 0 0 0
raise: Signal # 8 caught
raise: Signal # 8 caught
raise: Signal # 8 caught
SF: Detected N25Q512 with page size 256 Bytes, erase size 4 KiB, total
64 MiB
SF: Warning - Only lower 16MiB accessible, Full access #define
CONFIG_SPI_FLASH_BAR
=>
(u-boot 2015.04 final)
Is there missing initialization somewhere...?
Best regards,
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
^ permalink raw reply [flat|nested] 7+ messages in thread
* [U-Boot] SPI flash on Altera socfpga
2015-04-20 9:43 ` Stefan Roese
2015-04-20 11:58 ` [U-Boot] SPI flash only works after sspi command (was Re: SPI flash on Altera socfpga) Pavel Machek
@ 2015-04-22 9:19 ` Stefan Roese
1 sibling, 0 replies; 7+ messages in thread
From: Stefan Roese @ 2015-04-22 9:19 UTC (permalink / raw)
To: u-boot
Hi Pavel,
On 20.04.2015 11:43, Stefan Roese wrote:
> On 20.04.2015 11:24, Pavel Machek wrote:
>>> Which SPI flash are you talking about -- QSPI one or EPCS/EPCQ one ?
>>>
>>> I think Stefan got the QSPI one working. EPCQ is a bit trickier.
>>
>> Datasheet mentions QSPI_IO*/CLK/SS* pins, so I assume it is QSPI.
>
> Yes, QSPI handles the SPI NOR flash chips on SoCFPGA.
>
>>> On 20.04.2015 10:36, Pavel Machek wrote:
>>>> I see that u-boot 2015.04 has SPI flash configured in the
>>>> socfpga_cyclone5_socrates.dts. But as far as I know, socdk should have
>>>> same SPI flash, right? Should similar dts part be enabled there, too?
>>>
>>> SPI NOR flash is working for me on SoCrates and another similar custom
>>> SOCFPGA based board just fine.
I just re-tested SPI NOR on SoCratres. And it also is broken starting
with this commit:
$ git bisect good
0f36f957f4108d2d1d935e3076b7ae91f4e65a7d is the first bad commit
commit 0f36f957f4108d2d1d935e3076b7ae91f4e65a7d
Author: Simon Glass <sjg@chromium.org>
Even the v2015.04 release has non-working SPI NOR I'm afraid. In current
master its fixed again. This patch here fixes this bug:
b3d023b4058acc83d211555e62068f84e322bcac
"dm: spi_flash: fix wrong dependency"
I'll resend another mail to Tom, asking him to queue this patch for a
potential v2015.04 stable release.
Thanks,
Stefan
^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2015-04-22 9:19 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2015-04-20 8:36 [U-Boot] SPI flash on Altera socfpga Pavel Machek
2015-04-20 8:41 ` Marek Vasut
2015-04-20 9:24 ` Pavel Machek
2015-04-20 9:43 ` Stefan Roese
2015-04-20 11:58 ` [U-Boot] SPI flash only works after sspi command (was Re: SPI flash on Altera socfpga) Pavel Machek
2015-04-22 9:19 ` [U-Boot] SPI flash on Altera socfpga Stefan Roese
2015-04-20 8:42 ` Stefan Roese
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