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Date: Mon, 30 Nov 2020 17:32:39 +0800 From: Shawn Guo <shawnguo@...nel.org> To: Ivan Zaentsev <ivan.zaentsev@...enboard.ru> Cc: Russell King <linux@...linux.org.uk>, Sascha Hauer <s.hauer@...gutronix.de>, Pengutronix Kernel Team <kernel@...gutronix.de>, Fabio Estevam <festevam@...il.com>, NXP Linux Team <linux-imx@....com>, Evgeny Boger <boger@...enboard.com>, linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH v2] ARM: mxs: Add serial number support for i.MX23, i.MX28 SoCs On Mon, Nov 16, 2020 at 07:58:26PM +0300, Ivan Zaentsev wrote: > i.MX23 and i.MX28 SoCs unique identifiers are factory-programmed > in On-Chip OTP memory. i.MX28's 64-bit unique id is in > HW_OCOTP_OPS2:HW_OCOTP_OPS3 (see MCIMX28 Ref. Man., sec. 20.4.22-23). > > i.MX23 provides 32-bit long unique id in HW_OCOTP_OPS3. > Though not clearly documented, there is a clue in sec. 35.9.3. > > The unique id is reported in /sys/devices/soc0/serial_number > and in /proc/cpuinfo > > Signed-off-by: Ivan Zaentsev <ivan.zaentsev@...enboard.ru> > Suggested-by: Evgeny Boger <boger@...enboard.com> Applied, thanks.
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