diff options
author | Marcelo Roberto Jimenez <mroberto@cpti.cetuc.puc-rio.br> | 2010-12-16 14:51:30 -0500 |
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committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2010-12-21 09:53:34 -0500 |
commit | 9f15d2caca102c4b79e34562296bcbf982665cb2 (patch) | |
tree | d6f4d232eb242db0353d0cc311b949e5d05cb96c /arch/arm/mach-sa1100/nanoengine.c | |
parent | 7decaa557a20f48aabef35f817ec16ef563567b0 (diff) |
ARM: 6447/3: sa1100: Put nanoEngine support back in the kernel
Adds Bright Star Engineering's nanoEngine board support to the kernel.
Also:
- Adds the nanoEngine memory chip to arch/arm/mach-sa1100/cpu-sa1110.c
(Micron MT48LC8M16A2TG-75).
- Increase in the sdram_params->name[] field length to accomodate the
name of the memory chip.
- Clean up of header content and order of
arch/arm/mach-sa1100/cpu-sa1110.c
Signed-off-by: Marcelo Roberto Jimenez <mroberto@cpti.cetuc.puc-rio.br>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-sa1100/nanoengine.c')
-rw-r--r-- | arch/arm/mach-sa1100/nanoengine.c | 112 |
1 files changed, 112 insertions, 0 deletions
diff --git a/arch/arm/mach-sa1100/nanoengine.c b/arch/arm/mach-sa1100/nanoengine.c new file mode 100644 index 000000000000..e4a03099e2a3 --- /dev/null +++ b/arch/arm/mach-sa1100/nanoengine.c | |||
@@ -0,0 +1,112 @@ | |||
1 | /* | ||
2 | * linux/arch/arm/mach-sa1100/nanoengine.c | ||
3 | * | ||
4 | * Bright Star Engineering's nanoEngine board init code. | ||
5 | * | ||
6 | * Copyright (C) 2009 Marcelo Roberto Jimenez <mroberto@cpti.cetuc.puc-rio.br> | ||
7 | * | ||
8 | * This program is free software; you can redistribute it and/or modify | ||
9 | * it under the terms of the GNU General Public License version 2 as | ||
10 | * published by the Free Software Foundation. | ||
11 | * | ||
12 | */ | ||
13 | |||
14 | #include <linux/init.h> | ||
15 | #include <linux/kernel.h> | ||
16 | #include <linux/mtd/mtd.h> | ||
17 | #include <linux/mtd/partitions.h> | ||
18 | #include <linux/root_dev.h> | ||
19 | |||
20 | #include <asm/mach-types.h> | ||
21 | #include <asm/setup.h> | ||
22 | |||
23 | #include <asm/mach/arch.h> | ||
24 | #include <asm/mach/flash.h> | ||
25 | #include <asm/mach/map.h> | ||
26 | #include <asm/mach/serial_sa1100.h> | ||
27 | |||
28 | #include <mach/hardware.h> | ||
29 | |||
30 | #include "generic.h" | ||
31 | |||
32 | /* Flash bank 0 */ | ||
33 | static struct mtd_partition nanoengine_partitions[] = { | ||
34 | { | ||
35 | .name = "nanoEngine boot firmware and parameter table", | ||
36 | .size = 0x00010000, /* 32K */ | ||
37 | .offset = 0, | ||
38 | .mask_flags = MTD_WRITEABLE, | ||
39 | }, { | ||
40 | .name = "kernel/initrd reserved", | ||
41 | .size = 0x002f0000, | ||
42 | .offset = 0x00010000, | ||
43 | .mask_flags = MTD_WRITEABLE, | ||
44 | }, { | ||
45 | .name = "experimental filesystem allocation", | ||
46 | .size = 0x00100000, | ||
47 | .offset = 0x00300000, | ||
48 | .mask_flags = MTD_WRITEABLE, | ||
49 | } | ||
50 | }; | ||
51 | |||
52 | static struct flash_platform_data nanoengine_flash_data = { | ||
53 | .map_name = "jedec_probe", | ||
54 | .parts = nanoengine_partitions, | ||
55 | .nr_parts = ARRAY_SIZE(nanoengine_partitions), | ||
56 | }; | ||
57 | |||
58 | static struct resource nanoengine_flash_resources[] = { | ||
59 | { | ||
60 | .start = SA1100_CS0_PHYS, | ||
61 | .end = SA1100_CS0_PHYS + SZ_32M - 1, | ||
62 | .flags = IORESOURCE_MEM, | ||
63 | }, { | ||
64 | .start = SA1100_CS1_PHYS, | ||
65 | .end = SA1100_CS1_PHYS + SZ_32M - 1, | ||
66 | .flags = IORESOURCE_MEM, | ||
67 | } | ||
68 | }; | ||
69 | |||
70 | static struct map_desc nanoengine_io_desc[] __initdata = { | ||
71 | { | ||
72 | /* System Registers */ | ||
73 | .virtual = 0xf0000000, | ||
74 | .pfn = __phys_to_pfn(0x10000000), | ||
75 | .length = 0x00100000, | ||
76 | .type = MT_DEVICE | ||
77 | }, { | ||
78 | /* Internal PCI Config Space */ | ||
79 | .virtual = 0xf1000000, | ||
80 | .pfn = __phys_to_pfn(0x18A00000), | ||
81 | .length = 0x00100000, | ||
82 | .type = MT_DEVICE | ||
83 | } | ||
84 | }; | ||
85 | |||
86 | static void __init nanoengine_map_io(void) | ||
87 | { | ||
88 | sa1100_map_io(); | ||
89 | iotable_init(nanoengine_io_desc, ARRAY_SIZE(nanoengine_io_desc)); | ||
90 | |||
91 | sa1100_register_uart(0, 1); | ||
92 | sa1100_register_uart(1, 2); | ||
93 | sa1100_register_uart(2, 3); | ||
94 | Ser1SDCR0 |= SDCR0_UART; | ||
95 | /* disable IRDA -- UART2 is used as a normal serial port */ | ||
96 | Ser2UTCR4 = 0; | ||
97 | Ser2HSCR0 = 0; | ||
98 | } | ||
99 | |||
100 | static void __init nanoengine_init(void) | ||
101 | { | ||
102 | sa11x0_register_mtd(&nanoengine_flash_data, nanoengine_flash_resources, | ||
103 | ARRAY_SIZE(nanoengine_flash_resources)); | ||
104 | } | ||
105 | |||
106 | MACHINE_START(NANOENGINE, "BSE nanoEngine") | ||
107 | .boot_params = 0xc0000000, | ||
108 | .map_io = nanoengine_map_io, | ||
109 | .init_irq = sa1100_init_irq, | ||
110 | .timer = &sa1100_timer, | ||
111 | .init_machine = nanoengine_init, | ||
112 | MACHINE_END | ||