XO4 Bringup: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
No edit summary |
||
| Line 1: | Line 1: | ||
This page |
This page listed goals and plans for initial bringup of the [[XO 4 A1]] motherboard, the first prototype of the [[Hardware#XO_4_Laptop|XO-4 Laptop]], and now lists ongoing work. |
||
== Status == |
== Status == |
||
| Line 97: | Line 97: | ||
|} |
|} |
||
== Goals == |
== A1 Goals == |
||
The goal of a A-phase board bring-up is get a small number of boards to an acceptable state of functionality. At this point, a larger number of boards are [[XO4_A2_ECOs|modified]] to match and distributed for both extended testing of basic functionality (esp. memory stability) and development of software to access further functionality. |
The goal of a A-phase board bring-up is get a small number of boards to an acceptable state of functionality. At this point, a larger number of boards are [[XO4_A2_ECOs|modified]] to match and distributed for both extended testing of basic functionality (esp. memory stability) and development of software to access further functionality. |
||
| Line 109: | Line 109: | ||
* Support for reprogramming the EC SPI Flash from CPU |
* Support for reprogramming the EC SPI Flash from CPU |
||
== Non-goals == |
== A1 Non-goals == |
||
''We can go home even if these aren't working'' |
''We can go home even if these aren't working'' |
||
| Line 117: | Line 117: | ||
* Linux |
* Linux |
||
== Personnel == |
== A1 Personnel == |
||
* Wad (EE), Gary Chiang (EE), Richard (EC/OFW), Mitch (OFW), Paul (EC/Linux), from OLPC |
* Wad (EE), Gary Chiang (EE), Richard (EC/OFW), Mitch (OFW), Paul (EC/Linux), from OLPC |
||
Revision as of 18:50, 15 August 2012
This page listed goals and plans for initial bringup of the XO 4 A1 motherboard, the first prototype of the XO-4 Laptop, and now lists ongoing work.
Status
Note that a check in any one of the two columns is generally sufficient to prove that the hardware works.
| Subsystem | OFW | Linux | Kernel maintainer | Notes/Reference |
|---|---|---|---|---|
| CPU Boot | X | X | NA | |
| Serial port | X | X | NA | #12045 still open |
| Host/EC communications | X | dilinger / pgf | XO_1.75_HOST_to_EC_Protocol | |
| Host/EC programming | X | NA | NA | |
| Keyboard | X | pgf | ||
| Touchpad | X | pgf | ||
| USB | X | cjb | ||
| SD (Int/Ext) | X | X | cjb | Ext SD cards are being detected read-only by Linux in some machines |
| eMMC | X | X | cjb | |
| DCON | X | cjb | ||
| Framebuffer display | X | jnettlet | ||
| Xorg | NA | jnettlet | ||
| Audio playback (Int/Ext) | X | saadia | ||
| Audio recording (Int/Ext) | saadia | |||
| SDIO WLAN - libertas | X | X | cjb | |
| SDIO WLAN - mwifiex | shep | |||
| Battery charging | X | NA | NA | |
| Touchscreen | pgf | unit tested in both OFW/Linux, waiting for new IR pcb assemblies | ||
| OFW SPI Flash Prog. | X | NA | NA | |
| Camera | X | jnettlet | ||
| SMP | NA | dilinger | ||
| Battery driver | X | pgf | ||
| OLS | saadia | |||
| Switches (ebook, lid) | X | pgf | ||
| Internal RTC | saadia | |||
| External RTC | saadia | |||
| Accelerometer | saadia | |||
| Suspend/resume | dilinger | |||
| CPU frequency changing |
A1 Goals
The goal of a A-phase board bring-up is get a small number of boards to an acceptable state of functionality. At this point, a larger number of boards are modified to match and distributed for both extended testing of basic functionality (esp. memory stability) and development of software to access further functionality.
The following are the goals of this bringup:
- EC code booting and controlling the power sequencing properly
- CPU booting OFW
- Reliable memory and internal SD operation from OFW
- Reliable use of USB ports from OFW
- Support for the display and keyboard from OFW and Linux
- Support for reprogramming the EC SPI Flash from CPU
A1 Non-goals
We can go home even if these aren't working
- Proper operation of audio interface
- Proper operation of the wireless LAN
- Camera
- Linux
A1 Personnel
- Wad (EE), Gary Chiang (EE), Richard (EC/OFW), Mitch (OFW), Paul (EC/Linux), from OLPC
- Mars (PM), Eddie (PM), Beckham Chen (EE), from Quanta R&D