[PATCH v2 6/6] cmd: nand: Add new optional sub-command 'onfi'

[Michael Nazzareno Trimarchi]

Hi

I think this command can be really useful.

On Wed, Mar 20, 2024 at 3:09 PM <Mihai.Sain at microchip.com> wrote:
>
> Hi Alex,
>
> --------------------------------------------------------
>
> Override the ONFI timing mode at runtime.
>
> Signed-off-by: Alexander Dahl <ada at thorsis.com>
> ---
>
> I used the same board sam9x75-curiosity to test mode 5 😊
>
> I forced in nfc driver the mode 5:
> +       if (conf->timings.sdr.tRC_min < 20000)
>
> And I ran the nand torture on 16 MiB:
>
> => nand onfi 0
> => hsmc decode
>
> MCK rate: 270 MHz
>
> SMC_SETUP2:     0x00000007
> SMC_PULSE2:     0x22112211
> SMC_CYCLE2:     0x00220022
> SMC_MODE2:      0x001f0003
> NCS_RD: setup: 0 (0 ns), pulse: 34 (102 ns), hold: 0 (0 ns), cycle: 34 (102 ns)
>    NRD: setup: 0 (0 ns), pulse: 17 (51 ns), hold: 17 (51 ns), cycle: 34 (102 ns)
> NCS_WR: setup: 0 (0 ns), pulse: 34 (102 ns), hold: 0 (0 ns), cycle: 34 (102 ns)
>    NWE: setup: 7 (21 ns), pulse: 17 (51 ns), hold: 10 (30 ns), cycle: 34 (102 ns)
> Standard read applied
> TDF optimization enabled
> TDF cycles: 15 (45 ns)
> Data Bus Width: 8-bit bus
> NWAIT Mode: 0
> Write operation controlled by NWE signal
> Read operation controlled by NRD signal
>
> => time nand torture 0x800000 0x1000000
>
> NAND torture: device 0 offset 0x800000 size 0x1000000 (block size 0x40000)
>  Passed: 64, failed: 0
>
> time: 30.152 seconds
>
> => nand onfi 5
> => hsmc decode
>
> MCK rate: 270 MHz
>
> SMC_SETUP2:     0x00000001
> SMC_PULSE2:     0x0b060804
> SMC_CYCLE2:     0x000b0008
> SMC_MODE2:      0x001f0003
> NCS_RD: setup: 0 (0 ns), pulse: 11 (33 ns), hold: 0 (0 ns), cycle: 11 (33 ns)
>    NRD: setup: 0 (0 ns), pulse: 6 (18 ns), hold: 5 (15 ns), cycle: 11 (33 ns)
> NCS_WR: setup: 0 (0 ns), pulse: 8 (24 ns), hold: 0 (0 ns), cycle: 8 (24 ns)
>    NWE: setup: 1 (3 ns), pulse: 4 (12 ns), hold: 3 (9 ns), cycle: 8 (24 ns)
> Standard read applied
> TDF optimization enabled
> TDF cycles: 15 (45 ns)
> Data Bus Width: 8-bit bus
> NWAIT Mode: 0
> Write operation controlled by NWE signal
> Read operation controlled by NRD signal
>
> => time nand torture 0x800000 0x1000000
>
> NAND torture: device 0 offset 0x800000 size 0x1000000 (block size 0x40000)
>  Passed: 64, failed: 0
>
> time: 15.891 seconds
>

Let try to have more testing on more boards

Michael

> Best regards,
> Mihai Sain



-- 
Michael Nazzareno Trimarchi
Co-Founder & Chief Executive Officer
M. +39 347 913 2170
michael at amarulasolutions.com
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