diff options
| author | Kumar Gala <galak@kernel.crashing.org> | 2008-02-27 21:51:45 -0600 |
|---|---|---|
| committer | Marian Balakowicz <m8@semihalf.com> | 2008-02-29 12:30:14 +0100 |
| commit | d2bc095a639672def11d5d043b5688d0dbd692ec (patch) | |
| tree | ae988a46d63f0960325d0deede07134370cacf3c /lib_ppc | |
| parent | 27953493ef025fb698d68c5dee39b36f01f4d530 (diff) | |
[new uImage] ppc: Re-order ramdisk/fdt handling sequence
Doing the fdt before the ramdisk allows us to grow the fdt w/o concern
however it does mean we have to go in and fixup the initrd info since
we don't know where it will be.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Diffstat (limited to 'lib_ppc')
| -rw-r--r-- | lib_ppc/bootm.c | 39 |
1 files changed, 35 insertions, 4 deletions
diff --git a/lib_ppc/bootm.c b/lib_ppc/bootm.c index 3e89da1c461..de6995ecf2f 100644 --- a/lib_ppc/bootm.c +++ b/lib_ppc/bootm.c @@ -71,6 +71,7 @@ do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], bd_t *kbd; ulong ep = 0; void (*kernel)(bd_t *, ulong, ulong, ulong, ulong); + int ret; ulong of_size = 0; #if defined(CONFIG_OF_LIBFDT) @@ -126,9 +127,6 @@ do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], rd_len = rd_data_end - rd_data_start; - alloc_current = ramdisk_high (alloc_current, rd_data_start, rd_len, - sp_limit, get_sp (), &initrd_start, &initrd_end); - #if defined(CONFIG_OF_LIBFDT) alloc_current = fdt_relocate (alloc_current, cmdtp, flag, argc, argv, &of_flat_tree, &of_size); @@ -138,7 +136,8 @@ do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], * if the user wants it (the logic is in the subroutines). */ if (of_size) { - if (fdt_chosen(of_flat_tree, initrd_start, initrd_end, 0) < 0) { + /* pass in dummy initrd info, we'll fix up later */ + if (fdt_chosen(of_flat_tree, rd_data_start, rd_data_end, 0) < 0) { fdt_error ("/chosen node create failed"); do_reset (cmdtp, flag, argc, argv); } @@ -161,6 +160,38 @@ do_bootm_linux(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[], } #endif /* CONFIG_OF_LIBFDT */ + alloc_current = ramdisk_high (alloc_current, rd_data_start, rd_len, + sp_limit, get_sp (), &initrd_start, &initrd_end); + +#if defined(CONFIG_OF_LIBFDT) + /* fixup the initrd now that we know where it should be */ + if ((of_flat_tree) && (initrd_start && initrd_end)) { + uint64_t addr, size; + int total = fdt_num_mem_rsv(of_flat_tree); + int j; + + /* Look for the dummy entry and delete it */ + for (j = 0; j < total; j++) { + fdt_get_mem_rsv(of_flat_tree, j, &addr, &size); + if (addr == rd_data_start) { + fdt_del_mem_rsv(of_flat_tree, j); + break; + } + } + + ret = fdt_add_mem_rsv(of_flat_tree, initrd_start, + initrd_end - initrd_start + 1); + if (ret < 0) { + printf("fdt_chosen: %s\n", fdt_strerror(ret)); + do_reset (cmdtp, flag, argc, argv); + } + + do_fixup_by_path_u32(of_flat_tree, "/chosen", + "linux,initrd-start", initrd_start, 0); + do_fixup_by_path_u32(of_flat_tree, "/chosen", + "linux,initrd-end", initrd_end, 0); + } +#endif debug ("## Transferring control to Linux (at address %08lx) ...\n", (ulong)kernel); |