1 /*
2 * iop13xx custom ioremap implementation
3 * Copyright (c) 2005-2006, Intel Corporation.
4 *
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.
8 *
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
12 * more details.
13 *
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.
17 *
18 */
19 #include <linux/kernel.h>
20 #include <linux/module.h>
21 #include <linux/io.h>
22 #include <mach/hardware.h>
23
__iop13xx_io(unsigned long io_addr)24 void * __iomem __iop13xx_io(unsigned long io_addr)
25 {
26 void __iomem * io_virt;
27
28 switch (io_addr) {
29 case IOP13XX_PCIE_LOWER_IO_PA ... IOP13XX_PCIE_UPPER_IO_PA:
30 io_virt = (void *) IOP13XX_PCIE_IO_PHYS_TO_VIRT(io_addr);
31 break;
32 case IOP13XX_PCIX_LOWER_IO_PA ... IOP13XX_PCIX_UPPER_IO_PA:
33 io_virt = (void *) IOP13XX_PCIX_IO_PHYS_TO_VIRT(io_addr);
34 break;
35 default:
36 BUG();
37 }
38
39 return io_virt;
40 }
41 EXPORT_SYMBOL(__iop13xx_io);
42
__iop13xx_ioremap(unsigned long cookie,size_t size,unsigned int mtype)43 void * __iomem __iop13xx_ioremap(unsigned long cookie, size_t size,
44 unsigned int mtype)
45 {
46 void __iomem * retval;
47
48 switch (cookie) {
49 case IOP13XX_PCIX_LOWER_MEM_RA ... IOP13XX_PCIX_UPPER_MEM_RA:
50 if (unlikely(!iop13xx_atux_mem_base))
51 retval = NULL;
52 else
53 retval = (void *)(iop13xx_atux_mem_base +
54 (cookie - IOP13XX_PCIX_LOWER_MEM_RA));
55 break;
56 case IOP13XX_PCIE_LOWER_MEM_RA ... IOP13XX_PCIE_UPPER_MEM_RA:
57 if (unlikely(!iop13xx_atue_mem_base))
58 retval = NULL;
59 else
60 retval = (void *)(iop13xx_atue_mem_base +
61 (cookie - IOP13XX_PCIE_LOWER_MEM_RA));
62 break;
63 case IOP13XX_PBI_LOWER_MEM_RA ... IOP13XX_PBI_UPPER_MEM_RA:
64 retval = __arm_ioremap(IOP13XX_PBI_LOWER_MEM_PA +
65 (cookie - IOP13XX_PBI_LOWER_MEM_RA),
66 size, mtype);
67 break;
68 case IOP13XX_PCIE_LOWER_IO_PA ... IOP13XX_PCIE_UPPER_IO_PA:
69 retval = (void *) IOP13XX_PCIE_IO_PHYS_TO_VIRT(cookie);
70 break;
71 case IOP13XX_PCIX_LOWER_IO_PA ... IOP13XX_PCIX_UPPER_IO_PA:
72 retval = (void *) IOP13XX_PCIX_IO_PHYS_TO_VIRT(cookie);
73 break;
74 case IOP13XX_PMMR_PHYS_MEM_BASE ... IOP13XX_PMMR_UPPER_MEM_PA:
75 retval = (void *) IOP13XX_PMMR_PHYS_TO_VIRT(cookie);
76 break;
77 default:
78 retval = __arm_ioremap(cookie, size, mtype);
79 }
80
81 return retval;
82 }
83 EXPORT_SYMBOL(__iop13xx_ioremap);
84
__iop13xx_iounmap(void __iomem * addr)85 void __iop13xx_iounmap(void __iomem *addr)
86 {
87 extern void __iounmap(volatile void __iomem *addr);
88
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))
93 goto skip;
94
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))
99 goto skip;
100
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:
105 goto skip;
106 }
107 __iounmap(addr);
108
109 skip:
110 return;
111 }
112 EXPORT_SYMBOL(__iop13xx_iounmap);
113