OLSUbootBOF < U-Boot

---+ OLS U-Boot BOF

%TOC%

---++ Configuration
   * Compile Time Configuration
     %BR% Kconfig?
      1 Break Kconfig out of kernel and make usable in U-Boot context - Jon ?
   * Run Time Configuration
     %BR% Device Tree? [see below]

---++ Release Cycle
Follow Linux style? At least: time based labels / releases.

---++ Code Cleanup
   * Using "weak" functions instead of #ifdef mess
   * Move drivers code to =drivers/= directory
     %BR% Implement real generic device drivers? Bug Sascha...
     %BR% Concern: size -- use "bloat-o-meter"
   * Grant's relocation patches
     %BR% -&gt; fix memory map / relocation for ARM and MIPS
   * Introducing FDT to ARM and MIPS Linux?

---++ Patch & Bug Tracking
   * Using gnats: http://www.gnu.org/software/gnats/
   * preliminary setup: http://bugs.denx.de/
   * Todo - technical: improve automatic mail filtering (HTML, base64 encoded, compressed patches);
     User Interface (copy from !FreeBSD - see for example http://www.freebsd.org/cgi/query-pr.cgi?pr=ports/112338)
   * Todo - organization: Lifecycle of a patch in the tracking system?

---++ Project Funding
Sponsoring, Donations?


---++ Project List
   * In the works
   * "wanted"
   * voting

---++ Boot Sequence
NAND etc.

---+ Device Tree Run Time Configuration
<verbatim>
* drivers/can/i82527.c

DEVICE_ENTRY("CAN", "i82527",
             i82527_init,
             i82527_reg)


+-------
I includes entry in the device array d in binary:
I
I d[n] = {
I   .class = "CAN",
I   .type = "i82527",
I   .dev_init = i82527_init,
I   .dev_reg  = i82527_reg,
I }
+-------

i82527_init(fdt_node *p)
{
  ...
  i82527_setup(p);
  ...
}

__weak i82527_setup(fdt_node *p)
{
  return 1;
}

* board.c:

i82527_setup(fdt_node *p)
{
  ...
  program UPM
  ...
}


* common/probe.c (?):

hw_probe(type)
{
  for (i=0; i<sizeof(d); i++) {
    if (d[i].type != type)
      continue;
    if (p = find_compatible_device(d)) {
      d->dev_init(p);
      d->dev_reg(p);
    }
  }
}


* lib_ppc/board.c (?):
  ...
  hw_probe("CAN");
  hw_probe("IDE");
  ....
</verbatim>

-- Main.WolfgangDenk - 29 Jun 2007