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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 | pxa_set_ffuart_info(NULL); |
169 | pxa_set_btuart_info(NULL); |
170 | pxa_set_stuart_info(NULL); |
171 | pxa_set_hwuart_info(NULL); |
172 | |
173 | /* See Intel XScale Developer's Guide for details */ |
174 | /* Set RDF and RDN to appropriate values (chip select 3 (smc91x)) */ |
175 | MSC1 = (MSC1 & 0xffff) | 0xD5540000; |
176 | /* Set RDF and RDN to appropriate values (chip select 5 (fpga)) */ |
177 | MSC2 = (MSC2 & 0xffff) | 0x72A00000; |
178 | |
179 | platform_add_devices(ARRAY_AND_SIZE(devices)); |
180 | pxa_set_i2c_info(&xcep_i2c_platform_data); |
181 | } |
182 | |
183 | MACHINE_START(XCEP, "Iskratel XCEP") |
184 | .boot_params = 0xa0000100, |
185 | .init_machine = xcep_init, |
186 | .map_io = pxa_map_io, |
187 | .init_irq = pxa25x_init_irq, |
188 | .timer = &pxa_timer, |
189 | MACHINE_END |
190 | |
191 |
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