soc: imx8m: Dump higher 64bits UID

i.MX8MP UID is actually 128bits and partitioned into two parts.
The 1st 64bits are at 0x410 and 0x420, and 2nd 64bits are at 0xE00
and 0xE10.

Dump the whole 128bi

soc: imx8m: Dump higher 64bits UID

i.MX8MP UID is actually 128bits and partitioned into two parts.
The 1st 64bits are at 0x410 and 0x420, and 2nd 64bits are at 0xE00
and 0xE10.

Dump the whole 128bits for i.MX8MP, by set soc_uid as an array with two
u64.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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soc: imx8m: Introduce soc_uid hook

Cleanup code by introducing soc_uid hook, i.MX8MQ/M/N could reuse
one function imx8m_soc_uid, i.MX8MP could have its own one.

With this patch, it will easy to add

soc: imx8m: Introduce soc_uid hook

Cleanup code by introducing soc_uid hook, i.MX8MQ/M/N could reuse
one function imx8m_soc_uid, i.MX8MP could have its own one.

With this patch, it will easy to add 128bits UID support for i.MX8MP.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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soc: imx8m: Cleanup with adding imx8m_soc_[un]prepare

There is a common flow to i.MX8M family, map OCOTP register base and
enable ocotp clk first before read Unique ID from OCOTP.

So introduce imx8

soc: imx8m: Cleanup with adding imx8m_soc_[un]prepare

There is a common flow to i.MX8M family, map OCOTP register base and
enable ocotp clk first before read Unique ID from OCOTP.

So introduce imx8m_soc_prepare to do ioremap and enable the ocotp clk,
and introduce imx8m_soc_unprepare to disable the clk and do iounmap.

With this patch, no need to spread the ioremap and clk handling in
each soc_revision hook.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Reviewed-by: Marco Felsch <m.felsch@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

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