tile PCI RC: support pci=off boot arg for tilepro (2be70552) · Commits · 戴 / test

arch/tile/kernel/pci.c

+17 −0

Original line number	Diff line number	Diff line
		@@ -51,6 +51,8 @@
		*
		*/

		static int pci_probe = 1;

		/*
		* This flag tells if the platform is TILEmpower that needs
		* special configuration for the PLX switch chip.
		@@ -143,6 +145,11 @@ int __init tile_pci_init(void)
		{
		int i;

		if (!pci_probe) {
		pr_info("PCI: disabled by boot argument\n");
		return 0;
		}

		pr_info("PCI: Searching for controllers...\n");

		/* Re-init number of PCIe controllers to support hot-plug feature. */
		@@ -378,6 +385,16 @@ void pcibios_set_master(struct pci_dev *dev)
		/* No special bus mastering setup handling. */
		}

		/* Process any "pci=" kernel boot arguments. */
		char * __init pcibios_setup(char *str)
		{
		if (!strcmp(str, "off")) {
		pci_probe = 0;
		return NULL;
		}
		return str;
		}

		/*
		* Enable memory and/or address decoding, as appropriate, for the
		* device described by the 'dev' struct.