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From: Chris Packham <chris.packham@alliedtelesis.co.nz>
To: benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au
Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org,
	Chris Packham <chris.packham@alliedtelesis.co.nz>
Subject: [PATCH] powerpc: Support CMDLINE_EXTEND
Date: Wed, 24 Jul 2019 17:33:03 +1200	[thread overview]
Message-ID: <20190724053303.24317-1-chris.packham@alliedtelesis.co.nz> (raw)

Device tree aware platforms can make use of CMDLINE_EXTEND to extend the
kernel command line provided by the bootloader. This is particularly
useful to set parameters for built-in modules that would otherwise be
done at module insertion. Add support for this in the powerpc
architecture.

Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
---
 arch/powerpc/Kconfig | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index d8dcd8820369..cd9b3974aa36 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -851,6 +851,11 @@ config CMDLINE
 	  some command-line options at build time by entering them here.  In
 	  most cases you will need to specify the root device here.
 
+choice
+	prompt "Kernel command line type" if CMDLINE != ""
+	default CMDLINE_FORCE
+	depends on CMDLINE_BOOL
+
 config CMDLINE_FORCE
 	bool "Always use the default kernel command string"
 	depends on CMDLINE_BOOL
@@ -860,6 +865,13 @@ config CMDLINE_FORCE
 	  This is useful if you cannot or don't want to change the
 	  command-line options your boot loader passes to the kernel.
 
+config CMDLINE_EXTEND
+	bool "Extend bootloader kernel arguments"
+	help
+	  The command-line arguments provided by the boot loader will be
+	  appended to the default kernel command string.
+endchoice
+
 config EXTRA_TARGETS
 	string "Additional default image types"
 	help
-- 
2.22.0


WARNING: multiple messages have this Message-ID (diff)
From: Chris Packham <chris.packham@alliedtelesis.co.nz>
To: benh@kernel.crashing.org, paulus@samba.org, mpe@ellerman.id.au
Cc: Chris Packham <chris.packham@alliedtelesis.co.nz>,
	linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org
Subject: [PATCH] powerpc: Support CMDLINE_EXTEND
Date: Wed, 24 Jul 2019 17:33:03 +1200	[thread overview]
Message-ID: <20190724053303.24317-1-chris.packham@alliedtelesis.co.nz> (raw)

Device tree aware platforms can make use of CMDLINE_EXTEND to extend the
kernel command line provided by the bootloader. This is particularly
useful to set parameters for built-in modules that would otherwise be
done at module insertion. Add support for this in the powerpc
architecture.

Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
---
 arch/powerpc/Kconfig | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index d8dcd8820369..cd9b3974aa36 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -851,6 +851,11 @@ config CMDLINE
 	  some command-line options at build time by entering them here.  In
 	  most cases you will need to specify the root device here.
 
+choice
+	prompt "Kernel command line type" if CMDLINE != ""
+	default CMDLINE_FORCE
+	depends on CMDLINE_BOOL
+
 config CMDLINE_FORCE
 	bool "Always use the default kernel command string"
 	depends on CMDLINE_BOOL
@@ -860,6 +865,13 @@ config CMDLINE_FORCE
 	  This is useful if you cannot or don't want to change the
 	  command-line options your boot loader passes to the kernel.
 
+config CMDLINE_EXTEND
+	bool "Extend bootloader kernel arguments"
+	help
+	  The command-line arguments provided by the boot loader will be
+	  appended to the default kernel command string.
+endchoice
+
 config EXTRA_TARGETS
 	string "Additional default image types"
 	help
-- 
2.22.0


             reply	other threads:[~2019-07-24  5:33 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-07-24  5:33 Chris Packham [this message]
2019-07-24  5:33 ` [PATCH] powerpc: Support CMDLINE_EXTEND Chris Packham
2019-07-30  7:02 ` Christophe Leroy
2019-07-30 21:10   ` Chris Packham
2019-07-31  7:23     ` Christophe Leroy
2019-08-01  0:14       ` Chris Packham

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