tile PCI RC: support pci=off boot arg for tilepro (2be70552) · Commits · e / devices / android_kernel_teracube_2e

arch/tile/kernel/pci.c

+17 −0

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

			static int pci_probe = 1;

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

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

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

	/* Re-init number of PCIe controllers to support hot-plug feature. */		/* 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. */		/* 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		* Enable memory and/or address decoding, as appropriate, for the
	* device described by the 'dev' struct.		* device described by the 'dev' struct.