Commit 903589ca authored Apr 01, 2016 by Lorenzo Pieralisi Committed by Russell King Apr 04, 2016

ARM: 8554/1: kernel: pci: remove pci=firmware command line parameter handling



According to kernel documentation, the pci=firmware command line
parameter is only meant to be used on IXP2000 ARM platforms to prevent
the kernel from assigning PCI resources configured by the bootloader.

Since the IXP2000 ARM platforms support has been removed from the
kernel in commit:

commit c65f2abf ("ARM: remove ixp23xx and ixp2000 platforms")

its platforms specific kernel parameters should be removed
too from the kernel documentation along with the kernel code
currently handling them in that they have just become obsolete.

This patch removes the pci=firmware command line parameter handling
from ARM code and the related kernel parameters documentation
section.

Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Lennert Buytenhek <kernel@wantstofly.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Lennert Buytenhek <kernel@wantstofly.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Rob Herring <robh@kernel.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

parent f55532a0

Documentation/kernel-parameters.txt

+0 −5

Original line number	Diff line number	Diff line
		@@ -2921,11 +2921,6 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
		for broken drivers that don't call it.
		skip_isa_align [X86] do not align io start addr, so can
		handle more pci cards
		firmware [ARM] Do not re-enumerate the bus but instead
		just use the configuration from the
		bootloader. This is currently used on
		IXP2000 systems where the bus has to be
		configured a certain way for adjunct CPUs.
		noearly [X86] Don't do any early type 1 scanning.
		This might help on some broken boards which
		machine check when some devices' config space

arch/arm/kernel/bios32.c

+0 −3

Original line number	Diff line number	Diff line
		@@ -550,9 +550,6 @@ char * __init pcibios_setup(char *str)
		if (!strcmp(str, "debug")) {
		debug_pci = 1;
		return NULL;
		} else if (!strcmp(str, "firmware")) {
		pci_add_flags(PCI_PROBE_ONLY);
		return NULL;
		}
		return str;
		}