u-boot.git/arch/microblaze/lib/bootm.c, branch v2013.07-rc2

Clarify bootm OS arguments

2013-06-26T14:16:41Z

At present the arguments to bootm are processed in a somewhat confusing way. Sub-functions must know how many arguments their calling functions have processed, and the OS boot function must also have this information. Also it isn't obvious that 'bootm' and 'bootm start' provide arguments in the same way. Adjust the code so that arguments are removed from the list before calling a sub-function. This means that all functions can know that argv[0] is the first argument of which they need to take notice. Signed-off-by: Simon Glass

microblaze: bootm: Add support for loading initrd

2013-05-09T09:13:44Z

fdt_initrd add additional information to DTB about initrd addresses which are later used by kernel. Signed-off-by: Michal Simek

microblaze: bootm: Fix coding style issues

2013-05-09T09:11:57Z

Prepare place for new patch. Signed-off-by: Michal Simek

microblaze: Flush caches before enabling them

2012-11-07T16:11:14Z

Flushing caches is necessary because of soft reset which doesn't clear caches. Signed-off-by: Michal Simek Reviewed-by: Marek Vasut

bootstage: Replace show_boot_progress/error() with bootstage_...()

2012-03-18T20:41:39Z

These calls should not be made directly any more, since bootstage will call the show_boot_...() functions as needed. Signed-off-by: Simon Glass

bootstage: Make use of BOOTSTAGE_ID_RUN_OS in show_boot_progress()

2012-03-18T19:45:57Z

This changes the number 15 as used in boot_stage_progress() to use the new name provided for it. This is a separate patch because it touches so many files. Signed-off-by: Simon Glass Acked-by: Mike Frysinger

FDT: only call boot_get_fdt from generic code

2010-10-18T20:52:10Z

All arches except nios2 and microblaze call boot_get_fdt from bootm_start in common/cmd_bootm.c. Having nios2 and microblaze do so as well removes code from their respective do_bootm_linux routines and allows removal of a nasty ifdef from bootm_start. In the case where boot_get_fdt returns an error bootm_start returns and the platform specific do_bootm_linux routines will never get called. Also only check argv[3] for an fdt addr if argc > 3 first. This is already the case for nios2. Signed-off-by: John Rigby CC: Scott McNutt CC: Michal Simek CC: Thomas Chou Acked-by: Wolfgang Denk Acked-by: Michal Simek Tested-by: Thomas Chou

Make sure that argv[] argument pointers are not modified.

2010-07-04T21:55:42Z

The hush shell dynamically allocates (and re-allocates) memory for the argument strings in the "char *argv[]" argument vector passed to commands. Any code that modifies these pointers will cause serious corruption of the malloc data structures and crash U-Boot, so make sure the compiler can check that no such modifications are being done by changing the code into "char * const argv[]". This modification is the result of debugging a strange crash caused after adding a new command, which used the following argument processing code which has been working perfectly fine in all Unix systems since version 6 - but not so in U-Boot: int main (int argc, char **argv) { while (--argc > 0 && **++argv == '-') { /* ====> */ while (*++*argv) { switch (**argv) { case 'd': debug++; break; ... default: usage (); } } } ... } The line marked "====>" will corrupt the malloc data structures and usually cause U-Boot to crash when the next command gets executed by the shell. With the modification, the compiler will prevent this with an error: increment of read-only location '*argv' N.B.: The code above can be trivially rewritten like this: while (--argc > 0 && **++argv == '-') { char *arg = *argv; while (*++arg) { switch (*arg) { ... Signed-off-by: Wolfgang Denk Acked-by: Mike Frysinger

microblaze: Flush cache before jumping to kernel

2010-04-16T10:16:04Z

There is used max cache size on system which doesn't define cache size. Signed-off-by: Michal Simek

microblaze: Add FDT support

2010-04-16T10:15:13Z

This patch adds FDT (flattened device tree) support to microblaze arch. Tested with Linux arch/microblaze kernels with and without compiled in FDT on Xilinx ML506 board. Signed-off-by: Arun Bhanu Signed-off-by: Michal Simek