Commit | Line | Data |
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285f5fa7 DW |
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> | |
fced80c7 | 21 | #include <linux/io.h> |
a09e64fb | 22 | #include <mach/hardware.h> |
285f5fa7 | 23 | |
17d971e5 RH |
24 | #include "pci.h" |
25 | ||
9b97173e | 26 | static void __iomem *__iop13xx_ioremap_caller(phys_addr_t cookie, |
1dfe34ae | 27 | size_t size, unsigned int mtype, void *caller) |
285f5fa7 DW |
28 | { |
29 | void __iomem * retval; | |
30 | ||
31 | switch (cookie) { | |
32 | case IOP13XX_PCIX_LOWER_MEM_RA ... IOP13XX_PCIX_UPPER_MEM_RA: | |
33 | if (unlikely(!iop13xx_atux_mem_base)) | |
34 | retval = NULL; | |
35 | else | |
abf2ba15 | 36 | retval = (iop13xx_atux_mem_base + |
285f5fa7 DW |
37 | (cookie - IOP13XX_PCIX_LOWER_MEM_RA)); |
38 | break; | |
39 | case IOP13XX_PCIE_LOWER_MEM_RA ... IOP13XX_PCIE_UPPER_MEM_RA: | |
40 | if (unlikely(!iop13xx_atue_mem_base)) | |
41 | retval = NULL; | |
42 | else | |
abf2ba15 | 43 | retval = (iop13xx_atue_mem_base + |
285f5fa7 DW |
44 | (cookie - IOP13XX_PCIE_LOWER_MEM_RA)); |
45 | break; | |
46 | case IOP13XX_PBI_LOWER_MEM_RA ... IOP13XX_PBI_UPPER_MEM_RA: | |
31aa8fd6 | 47 | retval = __arm_ioremap_caller(IOP13XX_PBI_LOWER_MEM_PA + |
3603ab2b | 48 | (cookie - IOP13XX_PBI_LOWER_MEM_RA), |
31aa8fd6 | 49 | size, mtype, __builtin_return_address(0)); |
285f5fa7 | 50 | break; |
285f5fa7 | 51 | case IOP13XX_PMMR_PHYS_MEM_BASE ... IOP13XX_PMMR_UPPER_MEM_PA: |
abf2ba15 | 52 | retval = IOP13XX_PMMR_PHYS_TO_VIRT(cookie); |
285f5fa7 DW |
53 | break; |
54 | default: | |
31aa8fd6 | 55 | retval = __arm_ioremap_caller(cookie, size, mtype, |
1dfe34ae | 56 | caller); |
285f5fa7 DW |
57 | } |
58 | ||
59 | return retval; | |
60 | } | |
285f5fa7 | 61 | |
1dfe34ae | 62 | static void __iop13xx_iounmap(volatile void __iomem *addr) |
285f5fa7 | 63 | { |
285f5fa7 DW |
64 | if (iop13xx_atue_mem_base) |
65 | if (addr >= (void __iomem *) iop13xx_atue_mem_base && | |
66 | addr < (void __iomem *) (iop13xx_atue_mem_base + | |
67 | iop13xx_atue_mem_size)) | |
68 | goto skip; | |
69 | ||
70 | if (iop13xx_atux_mem_base) | |
71 | if (addr >= (void __iomem *) iop13xx_atux_mem_base && | |
72 | addr < (void __iomem *) (iop13xx_atux_mem_base + | |
73 | iop13xx_atux_mem_size)) | |
74 | goto skip; | |
75 | ||
76 | switch ((u32) addr) { | |
abf2ba15 | 77 | case (u32)IOP13XX_PMMR_VIRT_MEM_BASE ... (u32)IOP13XX_PMMR_UPPER_MEM_VA: |
285f5fa7 DW |
78 | goto skip; |
79 | } | |
80 | __iounmap(addr); | |
81 | ||
82 | skip: | |
83 | return; | |
84 | } | |
1dfe34ae RH |
85 | |
86 | void __init iop13xx_init_early(void) | |
87 | { | |
88 | arch_ioremap_caller = __iop13xx_ioremap_caller; | |
89 | arch_iounmap = __iop13xx_iounmap; | |
90 | } |