diff options
author | Haavard Skinnemoen <hskinnemoen@atmel.com> | 2007-04-12 11:26:57 -0400 |
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committer | Haavard Skinnemoen <hskinnemoen@atmel.com> | 2007-04-27 07:44:15 -0400 |
commit | 9ca20a8366462c553c27216161c735937f9de108 (patch) | |
tree | da29b02189dca4c13caa784a3b941b7948eee75b /arch/avr32/boards/atngw100/flash.c | |
parent | 2c1a2a3441a754a9b5a8e7184071154f8a9bd61b (diff) |
[AVR32] Board code for ATNGW100
Add board code and defconfig for the ATNGW100 Network Gateway kit.
For more information about this board, see
http://www.atmel.com/dyn/products/tools_card.asp?tool_id=4102
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Diffstat (limited to 'arch/avr32/boards/atngw100/flash.c')
-rw-r--r-- | arch/avr32/boards/atngw100/flash.c | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/arch/avr32/boards/atngw100/flash.c b/arch/avr32/boards/atngw100/flash.c new file mode 100644 index 000000000000..f9b32a8eab9b --- /dev/null +++ b/arch/avr32/boards/atngw100/flash.c | |||
@@ -0,0 +1,95 @@ | |||
1 | /* | ||
2 | * ATNGW100 board-specific flash initialization | ||
3 | * | ||
4 | * Copyright (C) 2005-2006 Atmel Corporation | ||
5 | * | ||
6 | * This program is free software; you can redistribute it and/or modify | ||
7 | * it under the terms of the GNU General Public License version 2 as | ||
8 | * published by the Free Software Foundation. | ||
9 | */ | ||
10 | #include <linux/init.h> | ||
11 | #include <linux/platform_device.h> | ||
12 | #include <linux/mtd/mtd.h> | ||
13 | #include <linux/mtd/partitions.h> | ||
14 | #include <linux/mtd/physmap.h> | ||
15 | |||
16 | #include <asm/arch/smc.h> | ||
17 | |||
18 | static struct smc_config flash_config __initdata = { | ||
19 | .ncs_read_setup = 0, | ||
20 | .nrd_setup = 40, | ||
21 | .ncs_write_setup = 0, | ||
22 | .nwe_setup = 10, | ||
23 | |||
24 | .ncs_read_pulse = 80, | ||
25 | .nrd_pulse = 40, | ||
26 | .ncs_write_pulse = 65, | ||
27 | .nwe_pulse = 55, | ||
28 | |||
29 | .read_cycle = 120, | ||
30 | .write_cycle = 120, | ||
31 | |||
32 | .bus_width = 2, | ||
33 | .nrd_controlled = 1, | ||
34 | .nwe_controlled = 1, | ||
35 | .byte_write = 1, | ||
36 | }; | ||
37 | |||
38 | static struct mtd_partition flash_parts[] = { | ||
39 | { | ||
40 | .name = "u-boot", | ||
41 | .offset = 0x00000000, | ||
42 | .size = 0x00020000, /* 128 KiB */ | ||
43 | .mask_flags = MTD_WRITEABLE, | ||
44 | }, | ||
45 | { | ||
46 | .name = "root", | ||
47 | .offset = 0x00020000, | ||
48 | .size = 0x007d0000, | ||
49 | }, | ||
50 | { | ||
51 | .name = "env", | ||
52 | .offset = 0x007f0000, | ||
53 | .size = 0x00010000, | ||
54 | .mask_flags = MTD_WRITEABLE, | ||
55 | }, | ||
56 | }; | ||
57 | |||
58 | static struct physmap_flash_data flash_data = { | ||
59 | .width = 2, | ||
60 | .nr_parts = ARRAY_SIZE(flash_parts), | ||
61 | .parts = flash_parts, | ||
62 | }; | ||
63 | |||
64 | static struct resource flash_resource = { | ||
65 | .start = 0x00000000, | ||
66 | .end = 0x007fffff, | ||
67 | .flags = IORESOURCE_MEM, | ||
68 | }; | ||
69 | |||
70 | static struct platform_device flash_device = { | ||
71 | .name = "physmap-flash", | ||
72 | .id = 0, | ||
73 | .resource = &flash_resource, | ||
74 | .num_resources = 1, | ||
75 | .dev = { | ||
76 | .platform_data = &flash_data, | ||
77 | }, | ||
78 | }; | ||
79 | |||
80 | /* This needs to be called after the SMC has been initialized */ | ||
81 | static int __init atngw100_flash_init(void) | ||
82 | { | ||
83 | int ret; | ||
84 | |||
85 | ret = smc_set_configuration(0, &flash_config); | ||
86 | if (ret < 0) { | ||
87 | printk(KERN_ERR "atngw100: failed to set NOR flash timing\n"); | ||
88 | return ret; | ||
89 | } | ||
90 | |||
91 | platform_device_register(&flash_device); | ||
92 | |||
93 | return 0; | ||
94 | } | ||
95 | device_initcall(atngw100_flash_init); | ||