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ipq806x: import bootargs-append from IPQ40xx

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This imports the patch that adds bootargs-append support from IPQ40xx.

This way we can append additional boot arguments from DTS instead of only being able to overwrite them.

This way dual firmware devices can use the rootfs number that bootloader passes to decide from what to boot.
But we still need to append console info and ubi root info.

This is used by Edgecore ECW5410.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>
This commit is contained in:
Robert Marko 2020-05-18 12:35:15 +02:00 committed by John Crispin
parent 811af0d98a
commit 43a53891ce
1 changed files with 14 additions and 0 deletions
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14
target/linux/ipq806x/patches-5.4/997-device_tree_cmdline.patch Normal file
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@ -0,0 +1,14 @@
Index: linux-5.4.65/drivers/of/fdt.c
===================================================================
--- linux-5.4.65.orig/drivers/of/fdt.c
+++ linux-5.4.65/drivers/of/fdt.c
@@ -1059,6 +1059,9 @@ int __init early_init_dt_scan_chosen(uns
p = of_get_flat_dt_prop(node, "bootargs", &l);
if (p != NULL && l > 0)
strlcpy(data, p, min(l, COMMAND_LINE_SIZE));
+ p = of_get_flat_dt_prop(node, "bootargs-append", &l);
+ if (p != NULL && l > 0)
+ strlcat(data, p, min_t(int, strlen(data) + (int)l, COMMAND_LINE_SIZE));
/*
* CONFIG_CMDLINE is meant to be a default in case nothing else