From: Shawn Guo <shawnguo@kernel.org>
To: Anson Huang <Anson.Huang@nxp.com>
Cc: robh+dt@kernel.org, mark.rutland@arm.com, s.hauer@pengutronix.de,
kernel@pengutronix.de, festevam@gmail.com,
devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, Linux-imx@nxp.com
Subject: Re: [PATCH V2] ARM: dts: imx7ulp-evk: Use APLL_PFD1 as usdhc's clock source
Date: Mon, 4 Nov 2019 09:57:23 +0800 [thread overview]
Message-ID: <20191104015722.GM24620@dragon> (raw)
In-Reply-To: <1572482622-22070-1-git-send-email-Anson.Huang@nxp.com>
On Thu, Oct 31, 2019 at 08:43:42AM +0800, Anson Huang wrote:
> i.MX7ULP does NOT support runtime switching clock source for PCC,
> APLL_PFD1 by default is usdhc's clock source, so just use it
> in kernel to avoid below kernel dump during kernel boot up and
> make sure kernel can boot up with SD root file-system.
>
> [ 3.035892] Loading compiled-in X.509 certificates
> [ 3.136301] sdhci-esdhc-imx 40370000.mmc: Got CD GPIO
> [ 3.242886] mmc0: Reset 0x1 never completed.
> [ 3.247190] mmc0: sdhci: ============ SDHCI REGISTER DUMP ===========
> [ 3.253751] mmc0: sdhci: Sys addr: 0x00000000 | Version: 0x00000002
> [ 3.260218] mmc0: sdhci: Blk size: 0x00000200 | Blk cnt: 0x00000001
> [ 3.266775] mmc0: sdhci: Argument: 0x00009a64 | Trn mode: 0x00000000
> [ 3.273333] mmc0: sdhci: Present: 0x00088088 | Host ctl: 0x00000002
> [ 3.279794] mmc0: sdhci: Power: 0x00000000 | Blk gap: 0x00000080
> [ 3.286350] mmc0: sdhci: Wake-up: 0x00000008 | Clock: 0x0000007f
> [ 3.292901] mmc0: sdhci: Timeout: 0x0000008c | Int stat: 0x00000000
> [ 3.299364] mmc0: sdhci: Int enab: 0x007f010b | Sig enab: 0x00000000
> [ 3.305918] mmc0: sdhci: ACmd stat: 0x00000000 | Slot int: 0x00008402
> [ 3.312471] mmc0: sdhci: Caps: 0x07eb0000 | Caps_1: 0x0000b400
> [ 3.318934] mmc0: sdhci: Cmd: 0x0000113a | Max curr: 0x00ffffff
> [ 3.325488] mmc0: sdhci: Resp[0]: 0x00000900 | Resp[1]: 0x0039b37f
> [ 3.332040] mmc0: sdhci: Resp[2]: 0x325b5900 | Resp[3]: 0x00400e00
> [ 3.338501] mmc0: sdhci: Host ctl2: 0x00000000
> [ 3.343051] mmc0: sdhci: ============================================
>
> Fixes: 20434dc92c05 ("ARM: dts: imx: add common imx7ulp dtsi support")
> Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
> Tested-by: Fabio Estevam <festevam@gmail.com>
Applied, thanks.
prev parent reply other threads:[~2019-11-04 1:57 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-31 0:43 [PATCH V2] ARM: dts: imx7ulp-evk: Use APLL_PFD1 as usdhc's clock source Anson Huang
2019-11-04 1:57 ` Shawn Guo [this message]
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