From: Fabio Estevam <festevam@gmail.com>
To: u-boot@lists.denx.de
Subject: question: mx7ulp - LDO_ENABLED_MODE
Date: Fri, 17 Jan 2020 14:18:55 -0300 [thread overview]
Message-ID: <CAOMZO5CgMpGJsCGdgKi1CCFP4oOaF6XHW0=+cWn5qaB5uU-NoA@mail.gmail.com> (raw)
In-Reply-To: <20200117165104.GC3054@trex>
On Fri, Jan 17, 2020 at 1:51 PM Jorge Ramirez-Ortiz, Gmail
<jorge.ramirez.ortiz@gmail.com> wrote:
> btw was checking the TRM manual (Chapter 28, PMC - page 1172)
>
> [..]
> PMC1 power mode[LDOVL] fields don’t necessarily satisfy the operation voltage levels
> required by the system. Such operation voltage requirements can be found on i.MX 7ULP
> Data Sheet. In this sense, no power transition should be performed before ensuring the
> mentioned register fields are matching the required operation voltage levels expressed on
> the data sheet.
>
> => 0.95V in the ldt_init function, is it in the data sheet?
> I just cant find that particular document
Yes, please take a look at https://www.nxp.com/docs/en/data-sheet/IMX7ULPCEC.pdf
(Table 5 - Search for PMC1_STOP[LDOVL] where it shows 0.95V as the
typical value)
next prev parent reply other threads:[~2020-01-17 17:18 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-16 20:30 question: mx7ulp - LDO_ENABLED_MODE Jorge
2020-01-16 21:33 ` Fabio Estevam
2020-01-16 21:51 ` Fabio Estevam
2020-01-16 22:04 ` Fabio Estevam
2020-01-16 22:24 ` Jorge
2020-01-16 22:38 ` Fabio Estevam
2020-01-17 9:24 ` Jorge
2020-01-16 22:01 ` Jorge
2020-01-17 13:26 ` Fabio Estevam
2020-01-17 14:26 ` Jorge
2020-01-17 16:51 ` Jorge
2020-01-17 17:18 ` Fabio Estevam [this message]
2020-01-17 18:40 ` Jorge
2020-01-17 18:53 ` Fabio Estevam
2020-01-17 19:02 ` Jorge
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