[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 <macro@linux-mips.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

5 files changed, 0 insertions, 14 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