SK-AM62: qspi norflash driver error under RT-linux

fan xu

Part Number: SK-AM62
Other Parts Discussed in Thread: AM625

Hello TI team:

At present, we use the AM625 processor to connect the QSPI NORFLASH (model: S25hl512t and is25lp01g) two flash drives to test the erasure read drive under RT-linux. Both of them appear to be incomplete in some flash areas after writing. It is suspected that the problem is the QSPI host controller driver. I see that you have introduced on your official website that the test of s25hs512t QSPI-NOR Flash can be started under uboot, so you should also have a test under the kernel, Can you send me the flash driver, or can you tell me how to change the driver? Thanks!

Here is your introduction to launching Uboot with S25hs512t QSPI-NOR Flash: software-dl.ti.com/.../UG-QSPI.html

over 3 years ago

0 Hong Guan64 over 3 years ago

TI__Guru* 77740 points

Hello,
Let me clarify first that it is "s28hs512t" 64MiB OSPI-NOR on TI AM62x-SK as listed below
=> sf probe
SF: Detected s28hs512t with page size 256 Bytes, erase size 256 KiB, total 64 MiB

Additonal there is on-going activity to backport the following commit from upstream linux on s25hs512t(QSPI-NOR)
lore.kernel.org/.../

Best,
-Hong

0 鑫金 over 3 years ago in reply to Hong Guan64

Prodigy 100 points

Hello,

Have you tested other QSPI flash under the AM625 chip?

0 鑫金 over 3 years ago in reply to Hong Guan64

Prodigy 100 points

Hello,

Have you tested other QSPI flash under the AM625 chip?

0 Hong Guan64 over 3 years ago in reply to 鑫金

TI__Guru* 77740 points

Hello,
No, "s28hs512t" 64MiB OSPI-NOR is installed on TI AM62x-SK, and tested in TI Linux SDK.
Best,
-Hong

0 鑫金 over 3 years ago in reply to Hong Guan64

Prodigy 100 points

Hello,

We test s28hs512t and modify the device tree to change the spi-tx-bus-width and spi-rx-bus-width to 1.,Using the single-fold mode, writing the norflash data under Linux will also cause incomplete data writing, such as being interrupted by some interrupts. Just as we use QSPI NORFLASH, we need to use QSPI NORFLASH now, but this problem has always been unsolvable. We need your help to solve this problem

0 Hong Guan64 over 3 years ago in reply to 鑫金

TI__Guru* 77740 points

Hello,
As in my early reply:

Hong Guan64 said:
Additonal there is on-going activity to backport the following commit from upstream linux on s25hs512t(QSPI-NOR)
lore.kernel.org/.../

The porting is still on-going..., plus this is to backport from the upstream Linux, which you may refer to it...
Best,
-Hong

0 鑫金 over 3 years ago in reply to Hong Guan64

Prodigy 100 points

Hello,

We have seen this patch, and the following four interface functions have not been adapted. Can you provide them here?

1： CYPRESS_NOR_RD_ANY_REG_OP
2： spi_nor_read_any_reg
3： spi_nor_write_any_volatile_reg
4： cypress_nor_set_page_size

0 Hong Guan64 over 3 years ago in reply to 鑫金

TI__Guru* 77740 points

Hello,
Let me clarify the porting work is still on-going..., and then need system testing... before making SDK release.
Best,
-Hong

0 Tony Tang over 3 years ago in reply to Hong Guan64

TI__Mastermind 30542 points

Hong,

How about the schedule? Will it release in PSDK 8.6?

0 Hong Guan64 over 3 years ago in reply to Tony Tang

TI__Guru* 77740 points

Hello Tony,
Let me check, and will keep you posted once I receive any update...
Best,
-Hong

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SK-AM62: qspi norflash driver error under RT-linux