MIPS: Loongson64: Drop setup_pcimap (53949e0a) · Commits · 戴 / test

arch/mips/loongson64/pci.c

+0 −43

Original line number	Diff line number	Diff line
		@@ -31,54 +31,11 @@ static struct pci_controller loongson_pci_controller = {
		.io_offset = 0x00000000UL,
		};

		static void __init setup_pcimap(void)
		{
		/*
		* local to PCI mapping for CPU accessing PCI space
		* CPU address space [256M,448M] is window for accessing pci space
		* we set pcimap_lo[0,1,2] to map it to pci space[0M,64M], [320M,448M]
		*
		* pcimap: PCI_MAP2 PCI_Mem_Lo2 PCI_Mem_Lo1 PCI_Mem_Lo0
		* [<2G] [384M,448M] [320M,384M] [0M,64M]
		*/
		LOONGSON_PCIMAP = LOONGSON_PCIMAP_PCIMAP_2 \|
		LOONGSON_PCIMAP_WIN(2, LOONGSON_PCILO2_BASE) \|
		LOONGSON_PCIMAP_WIN(1, LOONGSON_PCILO1_BASE) \|
		LOONGSON_PCIMAP_WIN(0, 0);

		/*
		* PCI-DMA to local mapping: [2G,2G+256M] -> [0M,256M]
		*/
		LOONGSON_PCIBASE0 = 0x80000000ul; /* base: 2G -> mmap: 0M */
		/* size: 256M, burst transmission, pre-fetch enable, 64bit */
		LOONGSON_PCI_HIT0_SEL_L = 0xc000000cul;
		LOONGSON_PCI_HIT0_SEL_H = 0xfffffffful;
		LOONGSON_PCI_HIT1_SEL_L = 0x00000006ul; /* set this BAR as invalid */
		LOONGSON_PCI_HIT1_SEL_H = 0x00000000ul;
		LOONGSON_PCI_HIT2_SEL_L = 0x00000006ul; /* set this BAR as invalid */
		LOONGSON_PCI_HIT2_SEL_H = 0x00000000ul;

		/* avoid deadlock of PCI reading/writing lock operation */
		LOONGSON_PCI_ISR4C = 0xd2000001ul;

		/* can not change gnt to break pci transfer when device's gnt not
		deassert for some broken device */
		LOONGSON_PXARB_CFG = 0x00fe0105ul;

		#ifdef CONFIG_CPU_SUPPORTS_ADDRWINCFG
		/*
		* set cpu addr window2 to map CPU address space to PCI address space
		*/
		LOONGSON_ADDRWIN_CPUTOPCI(ADDRWIN_WIN2, LOONGSON_CPU_MEM_SRC,
		LOONGSON_PCI_MEM_DST, MMAP_CPUTOPCI_SIZE);
		#endif
		}

		extern int sbx00_acpi_init(void);

		static int __init pcibios_init(void)
		{
		setup_pcimap();

		loongson_pci_controller.io_map_base = mips_io_port_base;
		loongson_pci_mem_resource.start = loongson_sysconf.pci_mem_start_addr;

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