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* [Buildroot] [PATCH] package/rpi-firmware: add option to use custom cmdline.txt
@ 2022-07-24 13:12 Yann E. MORIN
  2022-10-31 12:13 ` Yann E. MORIN
  0 siblings, 1 reply; 2+ messages in thread
From: Yann E. MORIN @ 2022-07-24 13:12 UTC (permalink / raw)
  To: buildroot; +Cc: Peter Seiderer, Yann E. MORIN

Currently, the cmdline.txt file is installed in $(BINARIES_DIR) by the
rpi-firmware package. Overriding files in there can not be done with an
overlay (which only applies to $(TARGET_DIR)), and thus requires using
either a post-build or post-image script, which is not always very
practical when a custom file must be used.

Like was done in 689b9ac439ab (package/rpi-firmware: rework boot/config
file handling) for config.txt, add an option to allow users to specify
the path to a custom cmdline.txt.

Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Cc: Peter Seiderer <ps.report@gmx.net>
---
 .../rpi-firmware => board/raspberrypi}/cmdline.txt     |  0
 package/rpi-firmware/Config.in                         |  7 +++++++
 package/rpi-firmware/rpi-firmware.mk                   | 10 +++++++++-
 3 files changed, 16 insertions(+), 1 deletion(-)
 rename {package/rpi-firmware => board/raspberrypi}/cmdline.txt (100%)

diff --git a/package/rpi-firmware/cmdline.txt b/board/raspberrypi/cmdline.txt
similarity index 100%
rename from package/rpi-firmware/cmdline.txt
rename to board/raspberrypi/cmdline.txt
diff --git a/package/rpi-firmware/Config.in b/package/rpi-firmware/Config.in
index 8070dc3019..a9aeaed745 100644
--- a/package/rpi-firmware/Config.in
+++ b/package/rpi-firmware/Config.in
@@ -69,6 +69,13 @@ config BR2_PACKAGE_RPI_FIRMWARE_CONFIG_FILE
 	  Path to a file stored as config.txt in the boot partiton
 	  of the generated SD card image.
 
+config BR2_PACKAGE_RPI_FIRMWARE_CMDLINE_FILE
+	string "Path to a file stored as boot/cmdline.txt"
+	default "board/raspberrypi/cmdline.txt"  # legacy
+	help
+	  Path to a file stored as cmdline.txt in the boot partiton
+	  of the generated SD card image.
+
 config BR2_PACKAGE_RPI_FIRMWARE_INSTALL_DTBS
 	bool "Install Device Tree Blobs (DTBs)"
 	default y
diff --git a/package/rpi-firmware/rpi-firmware.mk b/package/rpi-firmware/rpi-firmware.mk
index d4d1d07b3f..6f5902fd52 100644
--- a/package/rpi-firmware/rpi-firmware.mk
+++ b/package/rpi-firmware/rpi-firmware.mk
@@ -35,6 +35,14 @@ define RPI_FIRMWARE_INSTALL_CONFIG
 endef
 endif
 
+RPI_FIRMWARE_CMDLINE_FILE = $(call qstrip,$(BR2_PACKAGE_RPI_FIRMWARE_CMDLINE_FILE))
+ifneq ($(RPI_FIRMWARE_CMDLINE_FILE),)
+define RPI_FIRMWARE_INSTALL_CMDLINE
+	$(INSTALL) -D -m 0644 $(RPI_FIRMWARE_CMDLINE_FILE) \
+		$(BINARIES_DIR)/rpi-firmware/cmdline.txt
+endef
+endif
+
 ifeq ($(BR2_PACKAGE_RPI_FIRMWARE_INSTALL_DTBS),y)
 define RPI_FIRMWARE_INSTALL_DTB
 	$(foreach dtb,$(wildcard $(@D)/boot/*.dtb), \
@@ -79,9 +87,9 @@ endef
 endif # INSTALL_VCDBG
 
 define RPI_FIRMWARE_INSTALL_IMAGES_CMDS
-	$(INSTALL) -D -m 0644 package/rpi-firmware/cmdline.txt $(BINARIES_DIR)/rpi-firmware/cmdline.txt
 	$(RPI_FIRMWARE_INSTALL_BIN)
 	$(RPI_FIRMWARE_INSTALL_CONFIG)
+	$(RPI_FIRMWARE_INSTALL_CMDLINE)
 	$(RPI_FIRMWARE_INSTALL_DTB)
 	$(RPI_FIRMWARE_INSTALL_DTB_OVERLAYS)
 endef
-- 
2.25.1

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2022-07-24 13:12 [Buildroot] [PATCH] package/rpi-firmware: add option to use custom cmdline.txt Yann E. MORIN
2022-10-31 12:13 ` Yann E. MORIN

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