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* utils/hooks: Write offb device address to device treeSam Mendoza-Jonas2016-02-251-0/+492
| | | | | | | | | | | On OpenPOWER machines, kernels missing the AST video driver can use the existing 'Open Firmware' framebuffer device code to inherit an existing framebuffer from Petitboot. This requires us to translate the 64-bit address of the framebuffer 'back' into a PCI address and write it into an assigned-addresses property in the device tree. Bootstrapped-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Sam Mendoza-Jonas <sam@mendozajonas.com>
* utils/hooks: Add dtb-sort hookJeremy Kerr2014-01-211-0/+12
| | | | | | | The boot hooks may have altered the DTB in various ways, so add a final (90-) boot hook to re-sort the dtb with `dtc -s`. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* utils: Add boot hook to set stdout property on DT machinesJeremy Kerr2014-01-151-0/+23
| | | | | | | | | On machines that use device-tree boot, they'll often set an early console, defined by the linux,stdout property in the /chosen/ device tree node. This hook adds a facility for petitboot to set this, based on an NVRAM setting.
* utils/hooks: Add sample update-dtb hook.Jeremy Kerr2013-06-241-0/+22
| | | | | | Provide an example for writing a pre-boot hook to update the dtb. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* utils/hooks: Add create-dtb hookJeremy Kerr2013-06-241-0/+11
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
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