| Jiang Yutang | f71233d | 2011-03-04 10:25:54 +0800 | [diff] [blame] | 1 | Overview |
| 2 | -------- |
| 3 | P1022ds is a Low End Dual core platform supporting the P1022 processor |
| 4 | of QorIQ series. P1022 is an e500 based dual core SOC. |
| 5 | |
| 6 | |
| 7 | Pin Multiplex(hwconfig setting) |
| 8 | ------------------------------- |
| 9 | Add the environment 'usb2', 'audclk' and 'tdm' to support pin multiplex |
| 10 | via hwconfig, i.e: |
| 11 | 'setenv hwconfig usb2' to enable USB2 and disable eTsec2 |
| 12 | 'setenv hwconfig tdm' to enable TDM and disable Audio |
| 13 | 'setenv hwconfig audclk:12' to enable Audio(codec clock sources is 12MHz) |
| 14 | and disable TDM |
| 15 | 'setenv hwconfig 'usb2;tdm' to enable USB2 and TDM, disable eTsec2 and Audio |
| 16 | 'setenv hwconfig 'usb2;audclk:11' to enable USB2 and Audio(codec clock sources |
| 17 | is 11MHz), disable eTsec2 and TDM |
| 18 | |
| 19 | Warning: TDM and AUDIO can not enable simultaneous ! |
| 20 | and AUDIO codec clock sources only setting as 11MHz or 12MHz ! |
| 21 | 'setenv hwconfig 'audclk:12;tdm' --- error ! |
| 22 | 'setenv hwconfig 'audclk:11;tdm' --- error ! |
| 23 | 'setenv hwconfig 'audclk:10' --- error ! |