#imx8m mini pin mux configuration
Hi All,
I am newbee to pinmux tool, while exploring the pinmux configuration for iMX8M mini got the below questions, please help me in understanding
Exported the pin-mux details for iMX8M mini in pin mux tool and detsils for i2c is as below
In fsl-imx8mm-evk.dts file IO mux values are different
My question is why values(0x000001c3) generated by pinmux tool is not used directly? and there is addition of 0x40000000
and how the usdhc clk iomux values are generated for different frequency modes
Please help me out in understanding the above...
Thanks
Girish
解決済! 解決策の投稿を見る。
Hi Girish
i2c 0x40000000 is sion bit described in sect.8.2.3.3 SW Loopback through SION bit
i.MX 8M Mini Applications Processor Reference Manual
dts sion (0x40000000 ) is described in
fsl,imx-pinctrl.txt\pinctrl\bindings\devicetree\Documentation - linux-imx - i.MX Linux kernel
usdhc clk and its other signals iomux values are generated for different frequency modes
based on specific board layouts, one can use also ibis modelling for finding best value
for dse for different frequencies, they are described for example in
sect.8.2.5.204 Pad Control Register (IOMUXC_SW_PAD_CTL_PAD_SD2_CMD)
Best regards
igor
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Hi Girish
i2c 0x40000000 is sion bit described in sect.8.2.3.3 SW Loopback through SION bit
i.MX 8M Mini Applications Processor Reference Manual
dts sion (0x40000000 ) is described in
fsl,imx-pinctrl.txt\pinctrl\bindings\devicetree\Documentation - linux-imx - i.MX Linux kernel
usdhc clk and its other signals iomux values are generated for different frequency modes
based on specific board layouts, one can use also ibis modelling for finding best value
for dse for different frequencies, they are described for example in
sect.8.2.5.204 Pad Control Register (IOMUXC_SW_PAD_CTL_PAD_SD2_CMD)
Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
-----------------------------------------------------------------------------------------------------------------------
Hi Igor,
Thanks a lot for your inputs..
Thanks
Girish