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The clock parent of the AHB root clock when using mux option 1
is the SYS PLL 270MHz clock. This is specified in Table 5-11
Clock Root Table of the i.MX 7Dual Applications Processor
Reference Manual.
While it could be a documentation error, the 270MHz parent is
also mentioned in the boot ROM configuration in Table 6-28: The
clock is by default at 135MHz due to a POST_PODF value of 1
(=> divider of 2).
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Add the necessary clock to use the ckil on i.MX7.
Inspired from the following patch:
https://github.com/boundarydevices/linux-imx6/commit/b80e8271
Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
Signed-off-by: Gary Bisson <gary.bisson@boundarydevices.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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As we already have a 'imx_check_clocks' to do the clock error
check, so cleanup the error check code.
Signed-off-by: Bai Ping <b51503@freescale.com>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Add a virtual arm clk to abstract the actual steps
when changing the ARM core frequency.So we can using
the 'cpufreq-dt' driver on i.MX7D/Solo.
Signed-off-by: Bai Ping <b51503@freescale.com>
Acked-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Add ADC root clock support in imx7d clock tree.
Signed-off-by: Haibo Chen <haibo.chen@freescale.com>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Make sure to keep UART clocks enabled during kernel init if
earlyprintk or earlycon are active.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
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Add i.MX7D clk tree support.
Enable all clock to bring up imx7.
Clock framework need be modified a little since imx7d
change clock design. otherwise system will halt and block the
other part upstream.
All clock refine need wait for Dong Aisheng's patch
clk: support clocks which requires parent clock on during operation
Or other solution ready.
Signed-off-by: Anson Huang <b20788@freescale.com>
Signed-off-by: Adrian Alonso <aalonso@freescale.com>
Signed-off-by: Frank Li <Frank.Li@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
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