xref: /openbmc/u-boot/board/freescale/p1022ds/README (revision b98b611502f5e0a85a1f8e15cf46c470cb105614)
1*702e6014SWolfgang DenkOverview
2*702e6014SWolfgang Denk--------
3*702e6014SWolfgang DenkP1022ds is a Low End Dual core platform supporting the P1022 processor
4*702e6014SWolfgang Denkof QorIQ series. P1022 is an e500 based dual core SOC.
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7*702e6014SWolfgang DenkPin Multiplex(hwconfig setting)
8*702e6014SWolfgang Denk-------------------------------
9*702e6014SWolfgang DenkAdd the environment 'usb2', 'audclk' and 'tdm' to support pin multiplex
10*702e6014SWolfgang Denkvia hwconfig, i.e:
11*702e6014SWolfgang Denk'setenv hwconfig usb2' to enable USB2 and disable eTsec2
12*702e6014SWolfgang Denk'setenv hwconfig tdm' to enable TDM and disable Audio
13*702e6014SWolfgang Denk'setenv hwconfig audclk:12' to enable Audio(codec clock sources is 12MHz)
14*702e6014SWolfgang Denk and disable TDM
15*702e6014SWolfgang Denk'setenv hwconfig 'usb2;tdm' to enable USB2 and TDM, disable eTsec2 and Audio
16*702e6014SWolfgang Denk'setenv hwconfig 'usb2;audclk:11' to enable USB2 and Audio(codec clock sources
17*702e6014SWolfgang Denk is 11MHz), disable eTsec2 and TDM
18*702e6014SWolfgang Denk
19*702e6014SWolfgang DenkWarning: TDM and AUDIO can not enable simultaneous !
20*702e6014SWolfgang Denkand AUDIO codec clock sources only setting as 11MHz or 12MHz !
21*702e6014SWolfgang Denk'setenv hwconfig 'audclk:12;tdm'	--- error !
22*702e6014SWolfgang Denk'setenv hwconfig 'audclk:11;tdm'	--- error !
23*702e6014SWolfgang Denk'setenv hwconfig 'audclk:10'		--- error !
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