u-boot.git/lib_ppc/bootm.c, branch v2008.10

fdt: Overwrite /chosen node in bootm if it already exists in the dtb

2008-10-02T02:01:52+00:00

Set force parameter in fdt_chosen() call in do_bootm_linux() call.
Without this, the chosen node is not overwritten if it already
exists.

Signed-off-by: Stefan Roese

powerpc: Fix bootm to boot up again with a Ramdisk

2008-09-13T00:03:38+00:00

Commit 2a1a2cb6 didnt remove the dummy mem reservation in fdt_chosen,
and this stopped Linux from booting with a Ramdisk. This patch fixes
this, by deleting the useless dummy mem reservation.

When booting with a Ramdisk, a fix offset FDT_RAMDISK_OVERHEAD is now
added to of_size, so we dont need anymore a dummy mem reservation.

I measured the value of FDT_RAMDISK_OVERHEAD on a MPC8270 based
system (=0x44 bytes) and rounded it up to 0x80).

Signed-off-by: Heiko Schocher 
Acked-by: Kumar Gala

bootm: refactor do_reset and os boot function args

2008-08-26T21:48:01+00:00

There is no need for each OS specific function to call do_reset() we
can just do it once in bootm. This means its feasible on an error for
the OS boot function to return.

Also, remove passing in cmd_tbl_t as its not needed by the OS boot
functions.  flag isn't currently used but might be in the future so
we left it alone.

Signed-off-by: Kumar Gala

fdt: refactor initrd related code

2008-08-26T21:45:20+00:00

Created a new fdt_initrd() to deal with setting the initrd properties
in the device tree and fixing up the mem reserve.  We can use this
both in the choosen node handling and lets us remove some duplicated
code when we fixup the initrd info in bootm on PPC.

Signed-off-by: Kumar Gala

fdt: refactor fdt resize code

2008-08-26T21:43:36+00:00

Move the fdt resizing code out of ppc specific boot code and into
common fdt support code.

Signed-off-by: Kumar Gala

bootm: move lmb into the bootm_headers_t structure

2008-08-26T21:38:48+00:00

To allow for persistent state between future bootm subcommands we
need the lmb to exist in a global state.
Moving it into the bootm_headers_t allows us to do that.

Signed-off-by: Kumar Gala

bootm: refactor fdt locating and relocation code

2008-08-26T21:37:12+00:00

Move the code that handles finding a device tree blob and relocating
it (if needed) into common code so all arch's have access to it.

Signed-off-by: Kumar Gala

bootm: refactor ramdisk locating code

2008-08-26T21:35:24+00:00

Move determing if we have a ramdisk and where its located into the
common code. Keep track of the ramdisk start and end in the
bootm_headers_t image struct.

Signed-off-by: Kumar Gala

bootm: refactor entry point code

2008-08-26T21:31:33+00:00

Move entry point code out of each arch and into common code.
Keep the entry point in the bootm_headers_t images struct.

Signed-off-by: Kumar Gala

Update linux bootm to support ePAPR client interface

2008-08-18T22:55:11+00:00

The ePAPR spec has some subtle differences from the current device
tree based boot interface to the powerpc linux kernel. The powerpc
linux kernel currently ignores the differences that ePAPR specifies.

Signed-off-by: Kumar Gala