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u-boot: add support for devicetree 

Likewise the corresponding support for syslinux introduced by commit
c5112c25e4, this one enables writing devicetree
filename into the uEnv.txt environment file for u-boot.

Since u-boot does not strictly defines variable names, here 'fdt_file' was
chosen as it appear to be one the most frequently adopted names in u-boot
default environments. Outer boot logic should of course comply with this choice
and use $fdt_file as the device tree file name to pass to boot commands.

This was tested on a custom board booting with u-boot.

Closes: #1590
Approved by: cgwalters
This commit is contained in:
Andrea Galbusera 2018-05-15 08:29:28 +02:00 committed by Atomic Bot
parent 4b330feed6
commit ce2995e1dc
1 changed files with 4 additions and 0 deletions
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4
src/libostree/ostree-bootloader-uboot.c
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@ -140,6 +140,10 @@ create_config_from_boot_loader_entries (OstreeBootloaderUboot *self,
if (val) if (val)
g_ptr_array_add (new_lines, g_strdup_printf ("ramdisk_image%s=%s", index_suffix, val)); g_ptr_array_add (new_lines, g_strdup_printf ("ramdisk_image%s=%s", index_suffix, val));
val = ostree_bootconfig_parser_get (config, "devicetree");
if (val)
g_ptr_array_add (new_lines, g_strdup_printf ("fdt_file%s=%s", index_suffix, val));
val = ostree_bootconfig_parser_get (config, "options"); val = ostree_bootconfig_parser_get (config, "options");
if (val) if (val)
{ {