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51238bfe MK |
1 | /* linux/arch/arm/mach-pxa/xcep.c |
2 | * | |
3 | * Support for the Iskratel Electronics XCEP platform as used in | |
4 | * the Libera instruments from Instrumentation Technologies. | |
5 | * | |
6 | * Author: Ales Bardorfer <ales@i-tech.si> | |
7 | * Contributions by: Abbott, MG (Michael) <michael.abbott@diamond.ac.uk> | |
8 | * Contributions by: Matej Kenda <matej.kenda@i-tech.si> | |
9 | * Created: June 2006 | |
10 | * Copyright: (C) 2006-2009 Instrumentation Technologies | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or modify | |
13 | * it under the terms of the GNU General Public License version 2 as | |
14 | * published by the Free Software Foundation. | |
15 | */ | |
16 | ||
17 | #include <linux/platform_device.h> | |
18 | #include <linux/i2c.h> | |
19 | #include <linux/smc91x.h> | |
20 | #include <linux/mtd/mtd.h> | |
21 | #include <linux/mtd/partitions.h> | |
22 | #include <linux/mtd/physmap.h> | |
23 | ||
24 | #include <asm/mach-types.h> | |
25 | #include <asm/mach/arch.h> | |
26 | #include <asm/mach/irq.h> | |
27 | #include <asm/mach/map.h> | |
28 | ||
29 | #include <plat/i2c.h> | |
30 | ||
31 | #include <mach/hardware.h> | |
32 | #include <mach/pxa2xx-regs.h> | |
33 | #include <mach/mfp-pxa25x.h> | |
34 | ||
35 | #include "generic.h" | |
36 | ||
37 | #define XCEP_ETH_PHYS (PXA_CS3_PHYS + 0x00000300) | |
38 | #define XCEP_ETH_PHYS_END (PXA_CS3_PHYS + 0x000fffff) | |
39 | #define XCEP_ETH_ATTR (PXA_CS3_PHYS + 0x02000000) | |
40 | #define XCEP_ETH_ATTR_END (PXA_CS3_PHYS + 0x020fffff) | |
41 | #define XCEP_ETH_IRQ IRQ_GPIO0 | |
42 | ||
43 | /* XCEP CPLD base */ | |
44 | #define XCEP_CPLD_BASE 0xf0000000 | |
45 | ||
46 | ||
47 | /* Flash partitions. */ | |
48 | ||
49 | static struct mtd_partition xcep_partitions[] = { | |
50 | { | |
51 | .name = "Bootloader", | |
52 | .size = 0x00040000, | |
53 | .offset = 0, | |
54 | .mask_flags = MTD_WRITEABLE | |
55 | }, { | |
56 | .name = "Bootloader ENV", | |
57 | .size = 0x00040000, | |
58 | .offset = 0x00040000, | |
59 | .mask_flags = MTD_WRITEABLE | |
60 | }, { | |
61 | .name = "Kernel", | |
62 | .size = 0x00100000, | |
63 | .offset = 0x00080000, | |
64 | }, { | |
65 | .name = "Rescue fs", | |
66 | .size = 0x00280000, | |
67 | .offset = 0x00180000, | |
68 | }, { | |
69 | .name = "Filesystem", | |
70 | .size = MTDPART_SIZ_FULL, | |
71 | .offset = 0x00400000 | |
72 | } | |
73 | }; | |
74 | ||
75 | static struct physmap_flash_data xcep_flash_data[] = { | |
76 | { | |
77 | .width = 4, /* bankwidth in bytes */ | |
78 | .parts = xcep_partitions, | |
79 | .nr_parts = ARRAY_SIZE(xcep_partitions) | |
80 | } | |
81 | }; | |
82 | ||
83 | static struct resource flash_resource = { | |
84 | .start = PXA_CS0_PHYS, | |
85 | .end = PXA_CS0_PHYS + SZ_32M - 1, | |
86 | .flags = IORESOURCE_MEM, | |
87 | }; | |
88 | ||
89 | static struct platform_device flash_device = { | |
90 | .name = "physmap-flash", | |
91 | .id = 0, | |
92 | .dev = { | |
93 | .platform_data = xcep_flash_data, | |
94 | }, | |
95 | .resource = &flash_resource, | |
96 | .num_resources = 1, | |
97 | }; | |
98 | ||
99 | ||
100 | ||
101 | /* SMC LAN91C111 network controller. */ | |
102 | ||
103 | static struct resource smc91x_resources[] = { | |
104 | [0] = { | |
105 | .name = "smc91x-regs", | |
106 | .start = XCEP_ETH_PHYS, | |
107 | .end = XCEP_ETH_PHYS_END, | |
108 | .flags = IORESOURCE_MEM, | |
109 | }, | |
110 | [1] = { | |
111 | .start = XCEP_ETH_IRQ, | |
112 | .end = XCEP_ETH_IRQ, | |
113 | .flags = IORESOURCE_IRQ, | |
114 | }, | |
115 | [2] = { | |
116 | .name = "smc91x-attrib", | |
117 | .start = XCEP_ETH_ATTR, | |
118 | .end = XCEP_ETH_ATTR_END, | |
119 | .flags = IORESOURCE_MEM, | |
120 | }, | |
121 | }; | |
122 | ||
123 | static struct smc91x_platdata xcep_smc91x_info = { | |
124 | .flags = SMC91X_USE_32BIT | SMC91X_NOWAIT | SMC91X_USE_DMA, | |
125 | }; | |
126 | ||
127 | static struct platform_device smc91x_device = { | |
128 | .name = "smc91x", | |
129 | .id = -1, | |
130 | .num_resources = ARRAY_SIZE(smc91x_resources), | |
131 | .resource = smc91x_resources, | |
132 | .dev = { | |
133 | .platform_data = &xcep_smc91x_info, | |
134 | }, | |
135 | }; | |
136 | ||
137 | ||
138 | static struct platform_device *devices[] __initdata = { | |
139 | &flash_device, | |
140 | &smc91x_device, | |
141 | }; | |
142 | ||
143 | ||
144 | /* We have to state that there are HWMON devices on the I2C bus on XCEP. | |
145 | * Drivers for HWMON verify capabilities of the adapter when loading and | |
146 | * refuse to attach if the adapter doesn't support HWMON class of devices. | |
147 | * See also Documentation/i2c/porting-clients. */ | |
148 | static struct i2c_pxa_platform_data xcep_i2c_platform_data = { | |
149 | .class = I2C_CLASS_HWMON | |
150 | }; | |
151 | ||
152 | ||
153 | static mfp_cfg_t xcep_pin_config[] __initdata = { | |
154 | GPIO79_nCS_3, /* SMC 91C111 chip select. */ | |
155 | GPIO80_nCS_4, /* CPLD chip select. */ | |
156 | /* SSP communication to MSP430 */ | |
157 | GPIO23_SSP1_SCLK, | |
158 | GPIO24_SSP1_SFRM, | |
159 | GPIO25_SSP1_TXD, | |
160 | GPIO26_SSP1_RXD, | |
161 | GPIO27_SSP1_EXTCLK | |
162 | }; | |
163 | ||
164 | static void __init xcep_init(void) | |
165 | { | |
166 | pxa2xx_mfp_config(ARRAY_AND_SIZE(xcep_pin_config)); | |
167 | ||
168 | /* See Intel XScale Developer's Guide for details */ | |
169 | /* Set RDF and RDN to appropriate values (chip select 3 (smc91x)) */ | |
170 | MSC1 = (MSC1 & 0xffff) | 0xD5540000; | |
171 | /* Set RDF and RDN to appropriate values (chip select 5 (fpga)) */ | |
172 | MSC2 = (MSC2 & 0xffff) | 0x72A00000; | |
173 | ||
174 | platform_add_devices(ARRAY_AND_SIZE(devices)); | |
175 | pxa_set_i2c_info(&xcep_i2c_platform_data); | |
176 | } | |
177 | ||
178 | MACHINE_START(XCEP, "Iskratel XCEP") | |
179 | .phys_io = 0x40000000, | |
180 | .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, | |
181 | .boot_params = 0xa0000100, | |
182 | .init_machine = xcep_init, | |
183 | .map_io = pxa_map_io, | |
184 | .init_irq = pxa25x_init_irq, | |
185 | .timer = &pxa_timer, | |
186 | MACHINE_END | |
187 |