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| author | Ansuel Smith <ansuelsmth@gmail.com> | 2021-03-01 00:58:57 +0100 |
|---|---|---|
| committer | Petr Štetiar <ynezz@true.cz> | 2021-05-07 07:05:16 +0200 |
| commit | d53be2a2e98129ecf32009893ec46b1ce644721a (patch) | |
| tree | a501ae76b98989a5c6b16762c185212c081b840b /target/linux/ipq806x/patches-5.10/900-arm-add-cmdline-override.patch | |
| parent | 861b82d36ae43efec8d16e61b82482e38996af92 (diff) | |
| download | upstream-d53be2a2e98129ecf32009893ec46b1ce644721a.tar.gz upstream-d53be2a2e98129ecf32009893ec46b1ce644721a.tar.bz2 upstream-d53be2a2e98129ecf32009893ec46b1ce644721a.zip | |
ipq806x: copy kernel 5.4 patches to 5.10
Copy kernel 5.4 patches and config to 5.10
Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
Diffstat (limited to 'target/linux/ipq806x/patches-5.10/900-arm-add-cmdline-override.patch')
| -rw-r--r-- | target/linux/ipq806x/patches-5.10/900-arm-add-cmdline-override.patch | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/target/linux/ipq806x/patches-5.10/900-arm-add-cmdline-override.patch b/target/linux/ipq806x/patches-5.10/900-arm-add-cmdline-override.patch new file mode 100644 index 0000000000..49cd68b68d --- /dev/null +++ b/target/linux/ipq806x/patches-5.10/900-arm-add-cmdline-override.patch @@ -0,0 +1,37 @@ +--- a/arch/arm/Kconfig ++++ b/arch/arm/Kconfig +@@ -1840,6 +1840,14 @@ config ARM_ATAG_DTB_COMPAT_CMDLINE_MANGL + + endchoice + ++config CMDLINE_OVERRIDE ++ bool "Use alternative cmdline from device tree" ++ help ++ Some bootloaders may have uneditable bootargs. While CMDLINE_FORCE can ++ be used, this is not a good option for kernels that are shared across ++ devices. This setting enables using "chosen/cmdline-override" as the ++ cmdline if it exists in the device tree. ++ + config CMDLINE + string "Default kernel command string" + default "" +--- a/drivers/of/fdt.c ++++ b/drivers/of/fdt.c +@@ -1060,6 +1060,17 @@ int __init early_init_dt_scan_chosen(uns + if (p != NULL && l > 0) + strlcpy(data, p, min(l, COMMAND_LINE_SIZE)); + ++ /* CONFIG_CMDLINE_OVERRIDE is used to fallback to a different ++ * device tree option of chosen/bootargs-override. This is ++ * helpful on boards where u-boot sets bootargs, and is unable ++ * to be modified. ++ */ ++#ifdef CONFIG_CMDLINE_OVERRIDE ++ p = of_get_flat_dt_prop(node, "bootargs-override", &l); ++ if (p != NULL && l > 0) ++ strlcpy(data, p, min((int)l, COMMAND_LINE_SIZE)); ++#endif ++ + /* + * CONFIG_CMDLINE is meant to be a default in case nothing else + * managed to set the command line, unless CONFIG_CMDLINE_FORCE |