diff options
-rw-r--r-- | drivers/mtd/maps/Kconfig | 10 | ||||
-rw-r--r-- | drivers/mtd/maps/Makefile | 3 | ||||
-rw-r--r-- | drivers/mtd/maps/mainstone-flash.c | 178 |
3 files changed, 189 insertions, 2 deletions
diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig index 8d27dbf3fa8e..dbe1716c9724 100644 --- a/drivers/mtd/maps/Kconfig +++ b/drivers/mtd/maps/Kconfig | |||
@@ -1,5 +1,5 @@ | |||
1 | # drivers/mtd/maps/Kconfig | 1 | # drivers/mtd/maps/Kconfig |
2 | # $Id: Kconfig,v 1.51 2005/03/18 02:07:22 gleixner Exp $ | 2 | # $Id: Kconfig,v 1.54 2005/06/30 22:41:36 tpoynor Exp $ |
3 | 3 | ||
4 | menu "Mapping drivers for chip access" | 4 | menu "Mapping drivers for chip access" |
5 | depends on MTD!=n | 5 | depends on MTD!=n |
@@ -129,6 +129,14 @@ config MTD_LUBBOCK | |||
129 | This provides a driver for the on-board flash of the Intel | 129 | This provides a driver for the on-board flash of the Intel |
130 | 'Lubbock' XScale evaluation board. | 130 | 'Lubbock' XScale evaluation board. |
131 | 131 | ||
132 | config MTD_MAINSTONE | ||
133 | tristate "CFI Flash device mapped on Intel Mainstone XScale eval board" | ||
134 | depends on MACH_MAINSTONE && MTD_CFI_INTELEXT | ||
135 | select MTD_PARTITIONS | ||
136 | help | ||
137 | This provides a driver for the on-board flash of the Intel | ||
138 | 'Mainstone PXA27x evaluation board. | ||
139 | |||
132 | config MTD_OCTAGON | 140 | config MTD_OCTAGON |
133 | tristate "JEDEC Flash device mapped on Octagon 5066 SBC" | 141 | tristate "JEDEC Flash device mapped on Octagon 5066 SBC" |
134 | depends on X86 && MTD_JEDEC && MTD_COMPLEX_MAPPINGS | 142 | depends on X86 && MTD_JEDEC && MTD_COMPLEX_MAPPINGS |
diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile index 164cafc101ca..789a4b76890d 100644 --- a/drivers/mtd/maps/Makefile +++ b/drivers/mtd/maps/Makefile | |||
@@ -1,7 +1,7 @@ | |||
1 | # | 1 | # |
2 | # linux/drivers/maps/Makefile | 2 | # linux/drivers/maps/Makefile |
3 | # | 3 | # |
4 | # $Id: Makefile.common,v 1.26 2005/03/02 14:51:04 dvrabel Exp $ | 4 | # $Id: Makefile.common,v 1.29 2005/06/30 22:41:36 tpoynor Exp $ |
5 | 5 | ||
6 | ifeq ($(CONFIG_MTD_COMPLEX_MAPPINGS),y) | 6 | ifeq ($(CONFIG_MTD_COMPLEX_MAPPINGS),y) |
7 | obj-$(CONFIG_MTD) += map_funcs.o | 7 | obj-$(CONFIG_MTD) += map_funcs.o |
@@ -22,6 +22,7 @@ obj-$(CONFIG_MTD_AMD76XROM) += amd76xrom.o | |||
22 | obj-$(CONFIG_MTD_ICHXROM) += ichxrom.o | 22 | obj-$(CONFIG_MTD_ICHXROM) += ichxrom.o |
23 | obj-$(CONFIG_MTD_TSUNAMI) += tsunami_flash.o | 23 | obj-$(CONFIG_MTD_TSUNAMI) += tsunami_flash.o |
24 | obj-$(CONFIG_MTD_LUBBOCK) += lubbock-flash.o | 24 | obj-$(CONFIG_MTD_LUBBOCK) += lubbock-flash.o |
25 | obj-$(CONFIG_MTD_MAINSTONE) += mainstone-flash.o | ||
25 | obj-$(CONFIG_MTD_MBX860) += mbx860.o | 26 | obj-$(CONFIG_MTD_MBX860) += mbx860.o |
26 | obj-$(CONFIG_MTD_CEIVA) += ceiva.o | 27 | obj-$(CONFIG_MTD_CEIVA) += ceiva.o |
27 | obj-$(CONFIG_MTD_OCTAGON) += octagon-5066.o | 28 | obj-$(CONFIG_MTD_OCTAGON) += octagon-5066.o |
diff --git a/drivers/mtd/maps/mainstone-flash.c b/drivers/mtd/maps/mainstone-flash.c new file mode 100644 index 000000000000..87e93fa60588 --- /dev/null +++ b/drivers/mtd/maps/mainstone-flash.c | |||
@@ -0,0 +1,178 @@ | |||
1 | /* | ||
2 | * $Id: $ | ||
3 | * | ||
4 | * Map driver for the Mainstone developer platform. | ||
5 | * | ||
6 | * Author: Nicolas Pitre | ||
7 | * Copyright: (C) 2001 MontaVista Software Inc. | ||
8 | * | ||
9 | * This program is free software; you can redistribute it and/or modify | ||
10 | * it under the terms of the GNU General Public License version 2 as | ||
11 | * published by the Free Software Foundation. | ||
12 | */ | ||
13 | |||
14 | #include <linux/module.h> | ||
15 | #include <linux/types.h> | ||
16 | #include <linux/kernel.h> | ||
17 | #include <linux/init.h> | ||
18 | #include <linux/dma-mapping.h> | ||
19 | #include <linux/mtd/mtd.h> | ||
20 | #include <linux/mtd/map.h> | ||
21 | #include <linux/mtd/partitions.h> | ||
22 | #include <asm/io.h> | ||
23 | #include <asm/hardware.h> | ||
24 | #include <asm/arch/pxa-regs.h> | ||
25 | #include <asm/arch/mainstone.h> | ||
26 | |||
27 | |||
28 | #define ROM_ADDR 0x00000000 | ||
29 | #define FLASH_ADDR 0x04000000 | ||
30 | |||
31 | #define WINDOW_SIZE 0x04000000 | ||
32 | |||
33 | static void mainstone_map_inval_cache(struct map_info *map, unsigned long from, | ||
34 | ssize_t len) | ||
35 | { | ||
36 | consistent_sync((char *)map->cached + from, len, DMA_FROM_DEVICE); | ||
37 | } | ||
38 | |||
39 | static struct map_info mainstone_maps[2] = { { | ||
40 | .size = WINDOW_SIZE, | ||
41 | .phys = PXA_CS0_PHYS, | ||
42 | .inval_cache = mainstone_map_inval_cache, | ||
43 | }, { | ||
44 | .size = WINDOW_SIZE, | ||
45 | .phys = PXA_CS1_PHYS, | ||
46 | .inval_cache = mainstone_map_inval_cache, | ||
47 | } }; | ||
48 | |||
49 | static struct mtd_partition mainstone_partitions[] = { | ||
50 | { | ||
51 | .name = "Bootloader", | ||
52 | .size = 0x00040000, | ||
53 | .offset = 0, | ||
54 | .mask_flags = MTD_WRITEABLE /* force read-only */ | ||
55 | },{ | ||
56 | .name = "Kernel", | ||
57 | .size = 0x00400000, | ||
58 | .offset = 0x00040000, | ||
59 | },{ | ||
60 | .name = "Filesystem", | ||
61 | .size = MTDPART_SIZ_FULL, | ||
62 | .offset = 0x00440000 | ||
63 | } | ||
64 | }; | ||
65 | |||
66 | static struct mtd_info *mymtds[2]; | ||
67 | static struct mtd_partition *parsed_parts[2]; | ||
68 | static int nr_parsed_parts[2]; | ||
69 | |||
70 | static const char *probes[] = { "RedBoot", "cmdlinepart", NULL }; | ||
71 | |||
72 | static int __init init_mainstone(void) | ||
73 | { | ||
74 | int SW7 = 0; /* FIXME: get from SCR (Mst doc section 3.2.1.1) */ | ||
75 | int ret = 0, i; | ||
76 | |||
77 | mainstone_maps[0].bankwidth = (BOOT_DEF & 1) ? 2 : 4; | ||
78 | mainstone_maps[1].bankwidth = 4; | ||
79 | |||
80 | /* Compensate for SW7 which swaps the flash banks */ | ||
81 | mainstone_maps[SW7].name = "processor flash"; | ||
82 | mainstone_maps[SW7 ^ 1].name = "main board flash"; | ||
83 | |||
84 | printk(KERN_NOTICE "Mainstone configured to boot from %s\n", | ||
85 | mainstone_maps[0].name); | ||
86 | |||
87 | for (i = 0; i < 2; i++) { | ||
88 | mainstone_maps[i].virt = ioremap(mainstone_maps[i].phys, | ||
89 | WINDOW_SIZE); | ||
90 | if (!mainstone_maps[i].virt) { | ||
91 | printk(KERN_WARNING "Failed to ioremap %s\n", | ||
92 | mainstone_maps[i].name); | ||
93 | if (!ret) | ||
94 | ret = -ENOMEM; | ||
95 | continue; | ||
96 | } | ||
97 | mainstone_maps[i].cached = | ||
98 | ioremap_cached(mainstone_maps[i].phys, WINDOW_SIZE); | ||
99 | if (!mainstone_maps[i].cached) | ||
100 | printk(KERN_WARNING "Failed to ioremap cached %s\n", | ||
101 | mainstone_maps[i].name); | ||
102 | simple_map_init(&mainstone_maps[i]); | ||
103 | |||
104 | printk(KERN_NOTICE | ||
105 | "Probing %s at physical address 0x%08lx" | ||
106 | " (%d-bit bankwidth)\n", | ||
107 | mainstone_maps[i].name, mainstone_maps[i].phys, | ||
108 | mainstone_maps[i].bankwidth * 8); | ||
109 | |||
110 | mymtds[i] = do_map_probe("cfi_probe", &mainstone_maps[i]); | ||
111 | |||
112 | if (!mymtds[i]) { | ||
113 | iounmap((void *)mainstone_maps[i].virt); | ||
114 | if (mainstone_maps[i].cached) | ||
115 | iounmap(mainstone_maps[i].cached); | ||
116 | if (!ret) | ||
117 | ret = -EIO; | ||
118 | continue; | ||
119 | } | ||
120 | mymtds[i]->owner = THIS_MODULE; | ||
121 | |||
122 | ret = parse_mtd_partitions(mymtds[i], probes, | ||
123 | &parsed_parts[i], 0); | ||
124 | |||
125 | if (ret > 0) | ||
126 | nr_parsed_parts[i] = ret; | ||
127 | } | ||
128 | |||
129 | if (!mymtds[0] && !mymtds[1]) | ||
130 | return ret; | ||
131 | |||
132 | for (i = 0; i < 2; i++) { | ||
133 | if (!mymtds[i]) { | ||
134 | printk(KERN_WARNING "%s is absent. Skipping\n", | ||
135 | mainstone_maps[i].name); | ||
136 | } else if (nr_parsed_parts[i]) { | ||
137 | add_mtd_partitions(mymtds[i], parsed_parts[i], | ||
138 | nr_parsed_parts[i]); | ||
139 | } else if (!i) { | ||
140 | printk("Using static partitions on %s\n", | ||
141 | mainstone_maps[i].name); | ||
142 | add_mtd_partitions(mymtds[i], mainstone_partitions, | ||
143 | ARRAY_SIZE(mainstone_partitions)); | ||
144 | } else { | ||
145 | printk("Registering %s as whole device\n", | ||
146 | mainstone_maps[i].name); | ||
147 | add_mtd_device(mymtds[i]); | ||
148 | } | ||
149 | } | ||
150 | return 0; | ||
151 | } | ||
152 | |||
153 | static void __exit cleanup_mainstone(void) | ||
154 | { | ||
155 | int i; | ||
156 | for (i = 0; i < 2; i++) { | ||
157 | if (!mymtds[i]) | ||
158 | continue; | ||
159 | |||
160 | if (nr_parsed_parts[i] || !i) | ||
161 | del_mtd_partitions(mymtds[i]); | ||
162 | else | ||
163 | del_mtd_device(mymtds[i]); | ||
164 | |||
165 | map_destroy(mymtds[i]); | ||
166 | iounmap((void *)mainstone_maps[i].virt); | ||
167 | if (mainstone_maps[i].cached) | ||
168 | iounmap(mainstone_maps[i].cached); | ||
169 | kfree(parsed_parts[i]); | ||
170 | } | ||
171 | } | ||
172 | |||
173 | module_init(init_mainstone); | ||
174 | module_exit(cleanup_mainstone); | ||
175 | |||
176 | MODULE_LICENSE("GPL"); | ||
177 | MODULE_AUTHOR("Nicolas Pitre <nico@cam.org>"); | ||
178 | MODULE_DESCRIPTION("MTD map driver for Intel Mainstone"); | ||