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From: Christoph Niedermaier <cniedermaier@dh-electronics.com>
To: "linux-arm-kernel@lists.infradead.org"
	<linux-arm-kernel@lists.infradead.org>,
	Anson Huang <Anson.Huang@nxp.com>
Cc: "aisheng.dong@nxp.com" <aisheng.dong@nxp.com>,
	"shawnguo@kernel.org" <shawnguo@kernel.org>,
	"s.hauer@pengutronix.de" <s.hauer@pengutronix.de>,
	"linux@armlinux.org.uk" <linux@armlinux.org.uk>,
	"kernel@pengutronix.de" <kernel@pengutronix.de>,
	"festevam@gmail.com" <festevam@gmail.com>
Subject: ARM: imx: linux-next 20191203 kernel does not start on an i.MX6ULL due to the SoC serial number fetch.
Date: Tue, 3 Dec 2019 10:59:41 +0000	[thread overview]
Message-ID: <1ef39c29b35d48cea0f8a98aabcfef29@dh-electronics.com> (raw)

Hi,

My i.MX6ULL SoC doesn't start on the linux-next 20191203 Kernel.
Reason is the commit "ARM: imx: Add serial number support for i.MX6/7 SoCs" (8267ff89b713).
For i.MX6ULL the variable "ocotp_compat" is set to "fsl,imx6ul-ocotp", but with commit
"nvmem: imx-ocotp: Implement i.MX6ULL/ULZ support" (ffbc34bf0e9c) and commit
"ARM: dts: imx6ull: Fix i.MX6ULL/ULZ ocotp compatible" (f243bc821ee3) the value
"fsl,imx6ull-ocotp" is already defined and set in device tree...

With the follwing change the kernel starts on my i.MX6ULL SoC.
diff --git a/arch/arm/mach-imx/cpu.c b/arch/arm/mach-imx/cpu.c
index d8118031c51f..1ff73d1ac869 100644
--- a/arch/arm/mach-imx/cpu.c
+++ b/arch/arm/mach-imx/cpu.c
@@ -148,7 +148,7 @@ struct device * __init imx_soc_device_init(void)
 		soc_id = "i.MX6UL";
 		break;
 	case MXC_CPU_IMX6ULL:
-		ocotp_compat = "fsl,imx6ul-ocotp";
+		ocotp_compat = "fsl,imx6ull-ocotp";
 		soc_id = "i.MX6ULL";
 		break;
 	case MXC_CPU_IMX6ULZ:

Best regards,
Christoph

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             reply	other threads:[~2019-12-03 11:00 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-03 10:59 Christoph Niedermaier [this message]
2019-12-03 16:30 ` ARM: imx: linux-next 20191203 kernel does not start on an i.MX6ULL due to the SoC serial number fetch Fabio Estevam

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