From: Takahiro Kuwano <tkuw584924@gmail.com>
To: Tom Rini <trini@konsulko.com>, Tudor Ambarus <tudor.ambarus@linaro.org>
Cc: u-boot@lists.denx.de, Marek Vasut <marek.vasut@mailbox.org>,
jagan@amarulasolutions.com, vigneshr@ti.com, pratyush@kernel.org,
ashok.reddy.soma@amd.com, venkatesh.abbarapu@amd.com,
Hiroyuki.Saito2@infineon.com, Shinsuke.Okada@infineon.com,
Daisuke.Nakata@infineon.com, Bacem.Daassi@infineon.com,
Takahiro Kuwano <Takahiro.Kuwano@infineon.com>
Subject: Re: [PATCH 2/2] mtd: spi-nor-core: Rework spansion_sr_ready() for parallel memories support
Date: Sat, 15 Mar 2025 09:12:25 +0900 [thread overview]
Message-ID: <ee59e161-7b0a-4cdf-a4da-16aedbe9afb8@gmail.com> (raw)
In-Reply-To: <20250314145415.GP2640854@bill-the-cat>
On 3/14/2025 11:54 PM, Tom Rini wrote:
> On Fri, Mar 14, 2025 at 07:40:17AM +0000, Tudor Ambarus wrote:
>> + Marek,
>>
>> Hi,
>>
>> On 3/14/25 5:53 AM, tkuw584924@gmail.com wrote:
>>> spansion_sr_ready() needs to support parallel memories configuration,
>>> that reads status register value from each devices and combines the
>>> status bits, likewise read_sr() and read_fsr().
>>
>> SNOR_F_HAS_PARALLEL describes 2 flashes that work in parallel mode. And
>> we hacked SPI NOR and used a single spi_nor object to handle both
>> flashes which is obviously wrong.
>>
>> My 2c is that we shouldn't build on top of a crumbling foundation. Until
>> everything's moved on top of SPI NOR, I'd accept just fixes on this
>> subject, so no new support. Tom and Jagan to decide.
>
> Yes, I believe I was expecting some patches to redo / rework what we
> have in-tree currently.
>
Understood our current position and status, thanks!
Takahiro
prev parent reply other threads:[~2025-03-15 0:12 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-14 5:53 [PATCH 0/2] zynqmp parallel memories support for Infineon Flash tkuw584924
2025-03-14 5:53 ` [PATCH 1/2] spi: zynqmp_gqspi: Make WR_ANY_REG opcode not use striped access tkuw584924
2025-03-14 5:53 ` [PATCH 2/2] mtd: spi-nor-core: Rework spansion_sr_ready() for parallel memories support tkuw584924
2025-03-14 7:40 ` Tudor Ambarus
2025-03-14 14:54 ` Tom Rini
2025-03-15 0:12 ` Takahiro Kuwano [this message]
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