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d2912cb1 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
51238bfe MK |
2 | /* linux/arch/arm/mach-pxa/xcep.c |
3 | * | |
4 | * Support for the Iskratel Electronics XCEP platform as used in | |
5 | * the Libera instruments from Instrumentation Technologies. | |
6 | * | |
7 | * Author: Ales Bardorfer <ales@i-tech.si> | |
8 | * Contributions by: Abbott, MG (Michael) <michael.abbott@diamond.ac.uk> | |
9 | * Contributions by: Matej Kenda <matej.kenda@i-tech.si> | |
10 | * Created: June 2006 | |
11 | * Copyright: (C) 2006-2009 Instrumentation Technologies | |
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12 | */ |
13 | ||
14 | #include <linux/platform_device.h> | |
15 | #include <linux/i2c.h> | |
f15fc9b1 | 16 | #include <linux/platform_data/i2c-pxa.h> |
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17 | #include <linux/smc91x.h> |
18 | #include <linux/mtd/mtd.h> | |
19 | #include <linux/mtd/partitions.h> | |
20 | #include <linux/mtd/physmap.h> | |
21 | ||
22 | #include <asm/mach-types.h> | |
23 | #include <asm/mach/arch.h> | |
24 | #include <asm/mach/irq.h> | |
25 | #include <asm/mach/map.h> | |
26 | ||
51238bfe | 27 | #include <mach/hardware.h> |
4c25c5d2 | 28 | #include "pxa25x.h" |
ad68bb9f | 29 | #include <mach/smemc.h> |
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30 | |
31 | #include "generic.h" | |
cb74dc3b | 32 | #include "devices.h" |
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33 | |
34 | #define XCEP_ETH_PHYS (PXA_CS3_PHYS + 0x00000300) | |
35 | #define XCEP_ETH_PHYS_END (PXA_CS3_PHYS + 0x000fffff) | |
36 | #define XCEP_ETH_ATTR (PXA_CS3_PHYS + 0x02000000) | |
37 | #define XCEP_ETH_ATTR_END (PXA_CS3_PHYS + 0x020fffff) | |
38 | #define XCEP_ETH_IRQ IRQ_GPIO0 | |
39 | ||
40 | /* XCEP CPLD base */ | |
41 | #define XCEP_CPLD_BASE 0xf0000000 | |
42 | ||
43 | ||
44 | /* Flash partitions. */ | |
45 | ||
46 | static struct mtd_partition xcep_partitions[] = { | |
47 | { | |
48 | .name = "Bootloader", | |
49 | .size = 0x00040000, | |
50 | .offset = 0, | |
51 | .mask_flags = MTD_WRITEABLE | |
52 | }, { | |
53 | .name = "Bootloader ENV", | |
54 | .size = 0x00040000, | |
55 | .offset = 0x00040000, | |
56 | .mask_flags = MTD_WRITEABLE | |
57 | }, { | |
58 | .name = "Kernel", | |
59 | .size = 0x00100000, | |
60 | .offset = 0x00080000, | |
61 | }, { | |
62 | .name = "Rescue fs", | |
63 | .size = 0x00280000, | |
64 | .offset = 0x00180000, | |
65 | }, { | |
66 | .name = "Filesystem", | |
67 | .size = MTDPART_SIZ_FULL, | |
68 | .offset = 0x00400000 | |
69 | } | |
70 | }; | |
71 | ||
72 | static struct physmap_flash_data xcep_flash_data[] = { | |
73 | { | |
74 | .width = 4, /* bankwidth in bytes */ | |
75 | .parts = xcep_partitions, | |
76 | .nr_parts = ARRAY_SIZE(xcep_partitions) | |
77 | } | |
78 | }; | |
79 | ||
80 | static struct resource flash_resource = { | |
81 | .start = PXA_CS0_PHYS, | |
82 | .end = PXA_CS0_PHYS + SZ_32M - 1, | |
83 | .flags = IORESOURCE_MEM, | |
84 | }; | |
85 | ||
86 | static struct platform_device flash_device = { | |
87 | .name = "physmap-flash", | |
88 | .id = 0, | |
89 | .dev = { | |
90 | .platform_data = xcep_flash_data, | |
91 | }, | |
92 | .resource = &flash_resource, | |
93 | .num_resources = 1, | |
94 | }; | |
95 | ||
96 | ||
97 | ||
98 | /* SMC LAN91C111 network controller. */ | |
99 | ||
100 | static struct resource smc91x_resources[] = { | |
101 | [0] = { | |
102 | .name = "smc91x-regs", | |
103 | .start = XCEP_ETH_PHYS, | |
104 | .end = XCEP_ETH_PHYS_END, | |
105 | .flags = IORESOURCE_MEM, | |
106 | }, | |
107 | [1] = { | |
108 | .start = XCEP_ETH_IRQ, | |
109 | .end = XCEP_ETH_IRQ, | |
110 | .flags = IORESOURCE_IRQ, | |
111 | }, | |
112 | [2] = { | |
113 | .name = "smc91x-attrib", | |
114 | .start = XCEP_ETH_ATTR, | |
115 | .end = XCEP_ETH_ATTR_END, | |
116 | .flags = IORESOURCE_MEM, | |
117 | }, | |
118 | }; | |
119 | ||
120 | static struct smc91x_platdata xcep_smc91x_info = { | |
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121 | .flags = SMC91X_USE_8BIT | SMC91X_USE_16BIT | SMC91X_USE_32BIT | |
122 | SMC91X_NOWAIT | SMC91X_USE_DMA, | |
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123 | }; |
124 | ||
125 | static struct platform_device smc91x_device = { | |
126 | .name = "smc91x", | |
127 | .id = -1, | |
128 | .num_resources = ARRAY_SIZE(smc91x_resources), | |
129 | .resource = smc91x_resources, | |
130 | .dev = { | |
131 | .platform_data = &xcep_smc91x_info, | |
132 | }, | |
133 | }; | |
134 | ||
135 | ||
136 | static struct platform_device *devices[] __initdata = { | |
137 | &flash_device, | |
138 | &smc91x_device, | |
139 | }; | |
140 | ||
141 | ||
142 | /* We have to state that there are HWMON devices on the I2C bus on XCEP. | |
143 | * Drivers for HWMON verify capabilities of the adapter when loading and | |
395cf969 | 144 | * refuse to attach if the adapter doesn't support HWMON class of devices. */ |
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145 | static struct i2c_pxa_platform_data xcep_i2c_platform_data = { |
146 | .class = I2C_CLASS_HWMON | |
147 | }; | |
148 | ||
149 | ||
150 | static mfp_cfg_t xcep_pin_config[] __initdata = { | |
151 | GPIO79_nCS_3, /* SMC 91C111 chip select. */ | |
152 | GPIO80_nCS_4, /* CPLD chip select. */ | |
153 | /* SSP communication to MSP430 */ | |
154 | GPIO23_SSP1_SCLK, | |
155 | GPIO24_SSP1_SFRM, | |
156 | GPIO25_SSP1_TXD, | |
157 | GPIO26_SSP1_RXD, | |
158 | GPIO27_SSP1_EXTCLK | |
159 | }; | |
160 | ||
161 | static void __init xcep_init(void) | |
162 | { | |
163 | pxa2xx_mfp_config(ARRAY_AND_SIZE(xcep_pin_config)); | |
164 | ||
cc155c6f RK |
165 | pxa_set_ffuart_info(NULL); |
166 | pxa_set_btuart_info(NULL); | |
167 | pxa_set_stuart_info(NULL); | |
168 | pxa_set_hwuart_info(NULL); | |
169 | ||
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170 | /* See Intel XScale Developer's Guide for details */ |
171 | /* Set RDF and RDN to appropriate values (chip select 3 (smc91x)) */ | |
ad68bb9f | 172 | __raw_writel((__raw_readl(MSC1) & 0xffff) | 0xD5540000, MSC1); |
51238bfe | 173 | /* Set RDF and RDN to appropriate values (chip select 5 (fpga)) */ |
ad68bb9f | 174 | __raw_writel((__raw_readl(MSC2) & 0xffff) | 0x72A00000, MSC2); |
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175 | |
176 | platform_add_devices(ARRAY_AND_SIZE(devices)); | |
177 | pxa_set_i2c_info(&xcep_i2c_platform_data); | |
178 | } | |
179 | ||
180 | MACHINE_START(XCEP, "Iskratel XCEP") | |
7375aba6 | 181 | .atag_offset = 0x100, |
51238bfe | 182 | .init_machine = xcep_init, |
851982c1 | 183 | .map_io = pxa25x_map_io, |
4e611091 | 184 | .nr_irqs = PXA_NR_IRQS, |
51238bfe | 185 | .init_irq = pxa25x_init_irq, |
8a97ae2f | 186 | .handle_irq = pxa25x_handle_irq, |
6bb27d73 | 187 | .init_time = pxa_timer_init, |
271a74fc | 188 | .restart = pxa_restart, |
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189 | MACHINE_END |
190 |