xref: /OK3568_Linux_fs/u-boot/board/freescale/p1022ds/README (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593SmuzhiyunOverview
2*4882a593Smuzhiyun--------
3*4882a593SmuzhiyunP1022ds is a Low End Dual core platform supporting the P1022 processor
4*4882a593Smuzhiyunof QorIQ series. P1022 is an e500 based dual core SOC.
5*4882a593Smuzhiyun
6*4882a593Smuzhiyun
7*4882a593SmuzhiyunPin Multiplex(hwconfig setting)
8*4882a593Smuzhiyun-------------------------------
9*4882a593SmuzhiyunAdd the environment 'usb2', 'audclk' and 'tdm' to support pin multiplex
10*4882a593Smuzhiyunvia hwconfig, i.e:
11*4882a593Smuzhiyun'setenv hwconfig usb2' to enable USB2 and disable eTsec2
12*4882a593Smuzhiyun'setenv hwconfig tdm' to enable TDM and disable Audio
13*4882a593Smuzhiyun'setenv hwconfig audclk:12' to enable Audio(codec clock sources is 12MHz)
14*4882a593Smuzhiyun and disable TDM
15*4882a593Smuzhiyun'setenv hwconfig 'usb2;tdm' to enable USB2 and TDM, disable eTsec2 and Audio
16*4882a593Smuzhiyun'setenv hwconfig 'usb2;audclk:11' to enable USB2 and Audio(codec clock sources
17*4882a593Smuzhiyun is 11MHz), disable eTsec2 and TDM
18*4882a593Smuzhiyun
19*4882a593SmuzhiyunWarning: TDM and AUDIO can not enable simultaneous !
20*4882a593Smuzhiyunand AUDIO codec clock sources only setting as 11MHz or 12MHz !
21*4882a593Smuzhiyun'setenv hwconfig 'audclk:12;tdm'	--- error !
22*4882a593Smuzhiyun'setenv hwconfig 'audclk:11;tdm'	--- error !
23*4882a593Smuzhiyun'setenv hwconfig 'audclk:10'		--- error !
24