2 * iop13xx custom ioremap implementation
3 * Copyright (c) 2005-2006, Intel Corporation.
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms and conditions of the GNU General Public License,
7 * version 2, as published by the Free Software Foundation.
9 * This program is distributed in the hope it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 * You should have received a copy of the GNU General Public License along with
15 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
16 * Place - Suite 330, Boston, MA 02111-1307 USA.
19 #include <linux/kernel.h>
20 #include <linux/module.h>
22 #include <mach/hardware.h>
26 void * __iomem
__iop13xx_io(unsigned long io_addr
)
28 void __iomem
* io_virt
;
31 case IOP13XX_PCIE_LOWER_IO_PA
... IOP13XX_PCIE_UPPER_IO_PA
:
32 io_virt
= (void *) IOP13XX_PCIE_IO_PHYS_TO_VIRT(io_addr
);
34 case IOP13XX_PCIX_LOWER_IO_PA
... IOP13XX_PCIX_UPPER_IO_PA
:
35 io_virt
= (void *) IOP13XX_PCIX_IO_PHYS_TO_VIRT(io_addr
);
43 EXPORT_SYMBOL(__iop13xx_io
);
45 static void __iomem
*__iop13xx_ioremap_caller(unsigned long cookie
,
46 size_t size
, unsigned int mtype
, void *caller
)
48 void __iomem
* retval
;
51 case IOP13XX_PCIX_LOWER_MEM_RA
... IOP13XX_PCIX_UPPER_MEM_RA
:
52 if (unlikely(!iop13xx_atux_mem_base
))
55 retval
= (void *)(iop13xx_atux_mem_base
+
56 (cookie
- IOP13XX_PCIX_LOWER_MEM_RA
));
58 case IOP13XX_PCIE_LOWER_MEM_RA
... IOP13XX_PCIE_UPPER_MEM_RA
:
59 if (unlikely(!iop13xx_atue_mem_base
))
62 retval
= (void *)(iop13xx_atue_mem_base
+
63 (cookie
- IOP13XX_PCIE_LOWER_MEM_RA
));
65 case IOP13XX_PBI_LOWER_MEM_RA
... IOP13XX_PBI_UPPER_MEM_RA
:
66 retval
= __arm_ioremap_caller(IOP13XX_PBI_LOWER_MEM_PA
+
67 (cookie
- IOP13XX_PBI_LOWER_MEM_RA
),
68 size
, mtype
, __builtin_return_address(0));
70 case IOP13XX_PCIE_LOWER_IO_PA
... IOP13XX_PCIE_UPPER_IO_PA
:
71 retval
= (void *) IOP13XX_PCIE_IO_PHYS_TO_VIRT(cookie
);
73 case IOP13XX_PCIX_LOWER_IO_PA
... IOP13XX_PCIX_UPPER_IO_PA
:
74 retval
= (void *) IOP13XX_PCIX_IO_PHYS_TO_VIRT(cookie
);
76 case IOP13XX_PMMR_PHYS_MEM_BASE
... IOP13XX_PMMR_UPPER_MEM_PA
:
77 retval
= (void *) IOP13XX_PMMR_PHYS_TO_VIRT(cookie
);
80 retval
= __arm_ioremap_caller(cookie
, size
, mtype
,
87 static void __iop13xx_iounmap(volatile void __iomem
*addr
)
89 if (iop13xx_atue_mem_base
)
90 if (addr
>= (void __iomem
*) iop13xx_atue_mem_base
&&
91 addr
< (void __iomem
*) (iop13xx_atue_mem_base
+
92 iop13xx_atue_mem_size
))
95 if (iop13xx_atux_mem_base
)
96 if (addr
>= (void __iomem
*) iop13xx_atux_mem_base
&&
97 addr
< (void __iomem
*) (iop13xx_atux_mem_base
+
98 iop13xx_atux_mem_size
))
101 switch ((u32
) addr
) {
102 case IOP13XX_PCIE_LOWER_IO_VA
... IOP13XX_PCIE_UPPER_IO_VA
:
103 case IOP13XX_PCIX_LOWER_IO_VA
... IOP13XX_PCIX_UPPER_IO_VA
:
104 case IOP13XX_PMMR_VIRT_MEM_BASE
... IOP13XX_PMMR_UPPER_MEM_VA
:
113 void __init
iop13xx_init_early(void)
115 arch_ioremap_caller
= __iop13xx_ioremap_caller
;
116 arch_iounmap
= __iop13xx_iounmap
;