From c88a8b4ab0e1a1f06938939d9ba42e9da6144ccb Mon Sep 17 00:00:00 2001 From: "Maciej W. Rozycki" Date: Mon, 9 Jun 2008 17:19:53 +0100 Subject: [MIPS] Remove obsolete isa_slot_offset The isa_slot_offset variable and its __ISA_IO_base macro is not used anywhere anymore. It does not look like a decent interface per today's standards either. Remove both including all places of initialization. Signed-off-by: Maciej W. Rozycki Signed-off-by: Ralf Baechle --- arch/mips/jazz/setup.c | 1 - arch/mips/kernel/setup.c | 7 ------- arch/mips/pci/pci-bcm1480.c | 2 -- arch/mips/pci/pci-sb1250.c | 3 --- arch/mips/sni/setup.c | 1 - include/asm-mips/io.h | 17 ----------------- 6 files changed, 31 deletions(-) diff --git a/arch/mips/jazz/setup.c b/arch/mips/jazz/setup.c index a7947199c99b..f136c8a8591c 100644 --- a/arch/mips/jazz/setup.c +++ b/arch/mips/jazz/setup.c @@ -79,7 +79,6 @@ void __init plat_mem_setup(void) if (mips_machtype == MACH_MIPS_MAGNUM_4000) EISA_bus = 1; #endif - isa_slot_offset = 0xe3000000; /* request I/O space for devices used on all i[345]86 PCs */ for (i = 0; i < ARRAY_SIZE(jazz_io_resources); i++) diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c index c6a063b2a0d9..c04e4e3afede 100644 --- a/arch/mips/kernel/setup.c +++ b/arch/mips/kernel/setup.c @@ -68,13 +68,6 @@ static char command_line[CL_SIZE]; const unsigned long mips_io_port_base __read_mostly = -1; EXPORT_SYMBOL(mips_io_port_base); -/* - * isa_slot_offset is the address where E(ISA) busaddress 0 is mapped - * for the processor. - */ -unsigned long isa_slot_offset; -EXPORT_SYMBOL(isa_slot_offset); - static struct resource code_resource = { .name = "Kernel code", }; static struct resource data_resource = { .name = "Kernel data", }; diff --git a/arch/mips/pci/pci-bcm1480.c b/arch/mips/pci/pci-bcm1480.c index 87e2c8f54e2d..d19d262157f2 100644 --- a/arch/mips/pci/pci-bcm1480.c +++ b/arch/mips/pci/pci-bcm1480.c @@ -254,8 +254,6 @@ static int __init bcm1480_pcibios_init(void) ioremap(A_BCM1480_PHYS_PCI_IO_MATCH_BYTES, 65536); bcm1480_controller.io_map_base -= bcm1480_controller.io_offset; set_io_port_base(bcm1480_controller.io_map_base); - isa_slot_offset = (unsigned long) - ioremap(A_BCM1480_PHYS_PCI_MEM_MATCH_BYTES, 1024*1024); register_pci_controller(&bcm1480_controller); diff --git a/arch/mips/pci/pci-sb1250.c b/arch/mips/pci/pci-sb1250.c index 2a09ad91ec8c..9bc102a1380e 100644 --- a/arch/mips/pci/pci-sb1250.c +++ b/arch/mips/pci/pci-sb1250.c @@ -254,9 +254,6 @@ static int __init sb1250_pcibios_init(void) * works correctly with most of Linux's drivers. * XXX ehs: Should this happen in PCI Device mode? */ - isa_slot_offset = (unsigned long) - ioremap(A_PHYS_LDTPCI_IO_MATCH_BYTES_32, 1024 * 1024); - io_map_base = ioremap(A_PHYS_LDTPCI_IO_MATCH_BYTES, 1024 * 1024); sb1250_controller.io_map_base = io_map_base; set_io_port_base((unsigned long)io_map_base); diff --git a/arch/mips/sni/setup.c b/arch/mips/sni/setup.c index 5484e1c62054..a49272ce7ef5 100644 --- a/arch/mips/sni/setup.c +++ b/arch/mips/sni/setup.c @@ -116,7 +116,6 @@ void __init plat_mem_setup(void) /* * Setup (E)ISA I/O memory access stuff */ - isa_slot_offset = CKSEG1ADDR(0xb0000000); #ifdef CONFIG_EISA EISA_bus = 1; #endif diff --git a/include/asm-mips/io.h b/include/asm-mips/io.h index f18d2816cbec..501a40b9f18d 100644 --- a/include/asm-mips/io.h +++ b/include/asm-mips/io.h @@ -160,13 +160,6 @@ static inline void * isa_bus_to_virt(unsigned long address) #define virt_to_bus virt_to_phys #define bus_to_virt phys_to_virt -/* - * isa_slot_offset is the address where E(ISA) busaddress 0 is mapped - * for the processor. This implies the assumption that there is only - * one of these busses. - */ -extern unsigned long isa_slot_offset; - /* * Change "struct page" to physical address. */ @@ -527,16 +520,6 @@ static inline void memcpy_toio(volatile void __iomem *dst, const void *src, int memcpy((void __force *) dst, src, count); } -/* - * ISA space is 'always mapped' on currently supported MIPS systems, no need - * to explicitly ioremap() it. The fact that the ISA IO space is mapped - * to PAGE_OFFSET is pure coincidence - it does not mean ISA values - * are physical addresses. The following constant pointer can be - * used as the IO-area pointer (it can be iounmapped as well, so the - * analogy with PCI is quite large): - */ -#define __ISA_IO_base ((char *)(isa_slot_offset)) - /* * The caches on some architectures aren't dma-coherent and have need to * handle this in software. There are three types of operations that -- cgit