openwrt/target/linux/mediatek/patches-5.15/901-arm-add-cmdline-override.patch
Hauke Mehrtens bad01d4806 kernel: bump 5.15 to 5.15.165
Removed because they are upstream:
   generic/pending-5.15/110-v6.3-0001-spidev-Add-Silicon-Labs-EM3581-device-compatible.patch
   https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.15.y&id=bff165a3993683daddf3f00563960e7675966f91

   ipq807x/patches-5.15/0004-v5.16-arm64-dts-qcom-msm8996-Move-clock-cells-to-QMP-PHY-c.patch
   https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.15.y&id=32f0e52f16d45d743b473659329f93d4a27c68bf

Manually adapted:
   bcm27xx/patches-5.15/950-0040-spi-spidev-Completely-disable-the-spidev-warning.patch
   bcm27xx/patches-5.15/950-0578-spi-spidev-Restore-loading-from-Device-Tree.patch
   generic/pending-5.15/110-v6.3-0002-spidev-Add-Silicon-Labs-SI3210-device-compatible.patch

Adapt kernel configuration for newly added option
CONFIG_ARM64_ERRATUM_3194386.

The leddev_list_lock attribute changed from rwlock_t to spinlock_t in:
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.15.y&id=590304b798a3b89e716b6b564f8ad14bc9373d93

Link: https://github.com/openwrt/openwrt/pull/16366
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2024-09-14 16:51:13 +02:00

55 lines
1.7 KiB
Diff

--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1730,6 +1730,14 @@ config ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEN
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
@@ -1162,6 +1162,17 @@ int __init early_init_dt_scan_chosen(uns
if (p != NULL && l > 0)
strlcat(data, p, min_t(int, strlen(data) + (int)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
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -2097,6 +2097,14 @@ config CMDLINE_FORCE
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 EFI_STUB
bool