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author | Stefano Babic <sbabic@denx.de> | 2014-01-26 12:11:54 +0100 |
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committer | Stefano Babic <sbabic@denx.de> | 2014-01-26 12:11:54 +0100 |
commit | 707acd01ded3c60a4e277f7c5432d397897b4dfd (patch) | |
tree | 5730e1e1f0bac6c1aeddc261cb412fc3d5f220fd /doc/README.vxworks | |
parent | be2a3bb39adf1fdd274fc427e30ef62eb86441a1 (diff) | |
parent | c71b4dd2da0dcddabd7c29e6c3dc8a495d4bd928 (diff) | |
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Merge branch 'master' of git://git.denx.de/u-boot-arm
Diffstat (limited to 'doc/README.vxworks')
-rw-r--r-- | doc/README.vxworks | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/doc/README.vxworks b/doc/README.vxworks new file mode 100644 index 0000000..4cb302e --- /dev/null +++ b/doc/README.vxworks @@ -0,0 +1,19 @@ +From VxWorks 6.9+ (not include 6.9), VxWorks starts adopting device tree as its hardware +decription mechansim (for PowerPC and ARM), thus requiring boot interface changes. +This section will describe the new interface. + +For PowerPC, the calling convention of the new VxWorks entry point conforms to the ePAPR standard, +which is shown below (see ePAPR for more details): + + void (*kernel_entry)(fdt_addr, + 0, 0, EPAPR_MAGIC, boot_IMA, 0, 0) + +For ARM, the calling convention is show below: + + void (*kernel_entry)(void *fdt_addr) + +When booting new VxWorks kernel (uImage format), the parameters passed to bootm is like below: + + bootm <kernel image address> - <device tree address> + +The do_bootvx command still works as it was for older VxWorks kernels. |