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1 | /* |
2 | * arch/arm/mach-iop32x/em7210.c | |
3 | * | |
4 | * Board support code for the Lanner EM7210 platforms. | |
5 | * | |
6 | * Based on arch/arm/mach-iop32x/iq31244.c file. | |
7 | * | |
8 | * Copyright (C) 2007 Arnaud Patard <arnaud.patard@rtp-net.org> | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify | |
11 | * it under the terms of the GNU General Public License version 2 as | |
12 | * published by the Free Software Foundation. | |
13 | * | |
14 | */ | |
15 | ||
16 | #include <linux/mm.h> | |
17 | #include <linux/init.h> | |
18 | #include <linux/kernel.h> | |
19 | #include <linux/pci.h> | |
20 | #include <linux/pm.h> | |
21 | #include <linux/serial_core.h> | |
22 | #include <linux/serial_8250.h> | |
23 | #include <linux/mtd/physmap.h> | |
24 | #include <linux/platform_device.h> | |
fe885fa2 | 25 | #include <linux/i2c.h> |
a09e64fb | 26 | #include <mach/hardware.h> |
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27 | #include <linux/io.h> |
28 | #include <linux/irq.h> | |
29 | #include <asm/mach/arch.h> | |
30 | #include <asm/mach/map.h> | |
31 | #include <asm/mach/pci.h> | |
32 | #include <asm/mach/time.h> | |
33 | #include <asm/mach-types.h> | |
a09e64fb | 34 | #include <mach/time.h> |
7b85b867 | 35 | #include "gpio-iop32x.h" |
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36 | |
37 | static void __init em7210_timer_init(void) | |
38 | { | |
39 | /* http://www.kwaak.net/fotos/fotos-nas/slide_24.html */ | |
40 | /* 33.333 MHz crystal. */ | |
41 | iop_init_time(200000000); | |
42 | } | |
43 | ||
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44 | /* |
45 | * EM7210 RTC | |
46 | */ | |
47 | static struct i2c_board_info __initdata em7210_i2c_devices[] = { | |
48 | { | |
3760f736 | 49 | I2C_BOARD_INFO("rs5c372a", 0x32), |
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50 | }, |
51 | }; | |
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52 | |
53 | /* | |
54 | * EM7210 I/O | |
55 | */ | |
56 | static struct map_desc em7210_io_desc[] __initdata = { | |
57 | { /* on-board devices */ | |
58 | .virtual = IQ31244_UART, | |
59 | .pfn = __phys_to_pfn(IQ31244_UART), | |
60 | .length = 0x00100000, | |
61 | .type = MT_DEVICE, | |
62 | }, | |
63 | }; | |
64 | ||
65 | void __init em7210_map_io(void) | |
66 | { | |
67 | iop3xx_map_io(); | |
68 | iotable_init(em7210_io_desc, ARRAY_SIZE(em7210_io_desc)); | |
69 | } | |
70 | ||
71 | ||
72 | /* | |
73 | * EM7210 PCI | |
74 | */ | |
75 | #define INTA IRQ_IOP32X_XINT0 | |
76 | #define INTB IRQ_IOP32X_XINT1 | |
77 | #define INTC IRQ_IOP32X_XINT2 | |
78 | #define INTD IRQ_IOP32X_XINT3 | |
79 | ||
80 | static int __init | |
d5341942 | 81 | em7210_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) |
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82 | { |
83 | static int pci_irq_table[][4] = { | |
84 | /* | |
85 | * PCI IDSEL/INTPIN->INTLINE | |
86 | * A B C D | |
87 | */ | |
88 | {INTB, INTB, INTB, INTB}, /* console / uart */ | |
89 | {INTA, INTA, INTA, INTA}, /* 1st 82541 */ | |
90 | {INTD, INTD, INTD, INTD}, /* 2nd 82541 */ | |
91 | {INTC, INTC, INTC, INTC}, /* GD31244 */ | |
92 | {INTD, INTA, INTA, INTA}, /* mini-PCI */ | |
93 | {INTD, INTC, INTA, INTA}, /* NEC USB */ | |
94 | }; | |
95 | ||
96 | if (pin < 1 || pin > 4) | |
97 | return -1; | |
98 | ||
99 | return pci_irq_table[slot % 6][pin - 1]; | |
100 | } | |
101 | ||
102 | static struct hw_pci em7210_pci __initdata = { | |
a8135fcf | 103 | .nr_controllers = 1, |
c23bfc38 | 104 | .ops = &iop3xx_ops, |
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105 | .setup = iop3xx_pci_setup, |
106 | .preinit = iop3xx_pci_preinit, | |
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107 | .map_irq = em7210_pci_map_irq, |
108 | }; | |
109 | ||
110 | static int __init em7210_pci_init(void) | |
111 | { | |
112 | if (machine_is_em7210()) | |
113 | pci_common_init(&em7210_pci); | |
114 | ||
115 | return 0; | |
116 | } | |
117 | ||
118 | subsys_initcall(em7210_pci_init); | |
119 | ||
120 | ||
121 | /* | |
122 | * EM7210 Flash | |
123 | */ | |
124 | static struct physmap_flash_data em7210_flash_data = { | |
125 | .width = 2, | |
126 | }; | |
127 | ||
128 | static struct resource em7210_flash_resource = { | |
129 | .start = 0xf0000000, | |
130 | .end = 0xf1ffffff, | |
131 | .flags = IORESOURCE_MEM, | |
132 | }; | |
133 | ||
134 | static struct platform_device em7210_flash_device = { | |
135 | .name = "physmap-flash", | |
136 | .id = 0, | |
137 | .dev = { | |
138 | .platform_data = &em7210_flash_data, | |
139 | }, | |
140 | .num_resources = 1, | |
141 | .resource = &em7210_flash_resource, | |
142 | }; | |
143 | ||
144 | ||
145 | /* | |
146 | * EM7210 UART | |
147 | * The physical address of the serial port is 0xfe800000, | |
148 | * so it can be used for physical and virtual address. | |
149 | */ | |
150 | static struct plat_serial8250_port em7210_serial_port[] = { | |
151 | { | |
152 | .mapbase = IQ31244_UART, | |
153 | .membase = (char *)IQ31244_UART, | |
154 | .irq = IRQ_IOP32X_XINT1, | |
155 | .flags = UPF_SKIP_TEST, | |
156 | .iotype = UPIO_MEM, | |
157 | .regshift = 0, | |
158 | .uartclk = 1843200, | |
159 | }, | |
160 | { }, | |
161 | }; | |
162 | ||
163 | static struct resource em7210_uart_resource = { | |
164 | .start = IQ31244_UART, | |
165 | .end = IQ31244_UART + 7, | |
166 | .flags = IORESOURCE_MEM, | |
167 | }; | |
168 | ||
169 | static struct platform_device em7210_serial_device = { | |
170 | .name = "serial8250", | |
171 | .id = PLAT8250_DEV_PLATFORM, | |
172 | .dev = { | |
173 | .platform_data = em7210_serial_port, | |
174 | }, | |
175 | .num_resources = 1, | |
176 | .resource = &em7210_uart_resource, | |
177 | }; | |
178 | ||
179 | void em7210_power_off(void) | |
180 | { | |
181 | *IOP3XX_GPOE &= 0xfe; | |
182 | *IOP3XX_GPOD |= 0x01; | |
183 | } | |
184 | ||
185 | static void __init em7210_init_machine(void) | |
186 | { | |
7b85b867 | 187 | register_iop32x_gpio(); |
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188 | platform_device_register(&em7210_serial_device); |
189 | platform_device_register(&iop3xx_i2c0_device); | |
190 | platform_device_register(&iop3xx_i2c1_device); | |
191 | platform_device_register(&em7210_flash_device); | |
192 | platform_device_register(&iop3xx_dma_0_channel); | |
193 | platform_device_register(&iop3xx_dma_1_channel); | |
194 | ||
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195 | i2c_register_board_info(0, em7210_i2c_devices, |
196 | ARRAY_SIZE(em7210_i2c_devices)); | |
197 | ||
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198 | |
199 | pm_power_off = em7210_power_off; | |
200 | } | |
201 | ||
202 | MACHINE_START(EM7210, "Lanner EM7210") | |
1896746d | 203 | .atag_offset = 0x100, |
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204 | .map_io = em7210_map_io, |
205 | .init_irq = iop32x_init_irq, | |
6bb27d73 | 206 | .init_time = em7210_timer_init, |
a8135fcf | 207 | .init_machine = em7210_init_machine, |
bec92b1e | 208 | .restart = iop3xx_restart, |
a8135fcf | 209 | MACHINE_END |