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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> |
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35 | |
36 | static void __init em7210_timer_init(void) | |
37 | { | |
38 | /* http://www.kwaak.net/fotos/fotos-nas/slide_24.html */ | |
39 | /* 33.333 MHz crystal. */ | |
40 | iop_init_time(200000000); | |
41 | } | |
42 | ||
43 | static struct sys_timer em7210_timer = { | |
44 | .init = em7210_timer_init, | |
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45 | }; |
46 | ||
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47 | /* |
48 | * EM7210 RTC | |
49 | */ | |
50 | static struct i2c_board_info __initdata em7210_i2c_devices[] = { | |
51 | { | |
3760f736 | 52 | I2C_BOARD_INFO("rs5c372a", 0x32), |
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53 | }, |
54 | }; | |
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55 | |
56 | /* | |
57 | * EM7210 I/O | |
58 | */ | |
59 | static struct map_desc em7210_io_desc[] __initdata = { | |
60 | { /* on-board devices */ | |
61 | .virtual = IQ31244_UART, | |
62 | .pfn = __phys_to_pfn(IQ31244_UART), | |
63 | .length = 0x00100000, | |
64 | .type = MT_DEVICE, | |
65 | }, | |
66 | }; | |
67 | ||
68 | void __init em7210_map_io(void) | |
69 | { | |
70 | iop3xx_map_io(); | |
71 | iotable_init(em7210_io_desc, ARRAY_SIZE(em7210_io_desc)); | |
72 | } | |
73 | ||
74 | ||
75 | /* | |
76 | * EM7210 PCI | |
77 | */ | |
78 | #define INTA IRQ_IOP32X_XINT0 | |
79 | #define INTB IRQ_IOP32X_XINT1 | |
80 | #define INTC IRQ_IOP32X_XINT2 | |
81 | #define INTD IRQ_IOP32X_XINT3 | |
82 | ||
83 | static int __init | |
d5341942 | 84 | em7210_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) |
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85 | { |
86 | static int pci_irq_table[][4] = { | |
87 | /* | |
88 | * PCI IDSEL/INTPIN->INTLINE | |
89 | * A B C D | |
90 | */ | |
91 | {INTB, INTB, INTB, INTB}, /* console / uart */ | |
92 | {INTA, INTA, INTA, INTA}, /* 1st 82541 */ | |
93 | {INTD, INTD, INTD, INTD}, /* 2nd 82541 */ | |
94 | {INTC, INTC, INTC, INTC}, /* GD31244 */ | |
95 | {INTD, INTA, INTA, INTA}, /* mini-PCI */ | |
96 | {INTD, INTC, INTA, INTA}, /* NEC USB */ | |
97 | }; | |
98 | ||
99 | if (pin < 1 || pin > 4) | |
100 | return -1; | |
101 | ||
102 | return pci_irq_table[slot % 6][pin - 1]; | |
103 | } | |
104 | ||
105 | static struct hw_pci em7210_pci __initdata = { | |
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106 | .nr_controllers = 1, |
107 | .setup = iop3xx_pci_setup, | |
108 | .preinit = iop3xx_pci_preinit, | |
109 | .scan = iop3xx_pci_scan_bus, | |
110 | .map_irq = em7210_pci_map_irq, | |
111 | }; | |
112 | ||
113 | static int __init em7210_pci_init(void) | |
114 | { | |
115 | if (machine_is_em7210()) | |
116 | pci_common_init(&em7210_pci); | |
117 | ||
118 | return 0; | |
119 | } | |
120 | ||
121 | subsys_initcall(em7210_pci_init); | |
122 | ||
123 | ||
124 | /* | |
125 | * EM7210 Flash | |
126 | */ | |
127 | static struct physmap_flash_data em7210_flash_data = { | |
128 | .width = 2, | |
129 | }; | |
130 | ||
131 | static struct resource em7210_flash_resource = { | |
132 | .start = 0xf0000000, | |
133 | .end = 0xf1ffffff, | |
134 | .flags = IORESOURCE_MEM, | |
135 | }; | |
136 | ||
137 | static struct platform_device em7210_flash_device = { | |
138 | .name = "physmap-flash", | |
139 | .id = 0, | |
140 | .dev = { | |
141 | .platform_data = &em7210_flash_data, | |
142 | }, | |
143 | .num_resources = 1, | |
144 | .resource = &em7210_flash_resource, | |
145 | }; | |
146 | ||
147 | ||
148 | /* | |
149 | * EM7210 UART | |
150 | * The physical address of the serial port is 0xfe800000, | |
151 | * so it can be used for physical and virtual address. | |
152 | */ | |
153 | static struct plat_serial8250_port em7210_serial_port[] = { | |
154 | { | |
155 | .mapbase = IQ31244_UART, | |
156 | .membase = (char *)IQ31244_UART, | |
157 | .irq = IRQ_IOP32X_XINT1, | |
158 | .flags = UPF_SKIP_TEST, | |
159 | .iotype = UPIO_MEM, | |
160 | .regshift = 0, | |
161 | .uartclk = 1843200, | |
162 | }, | |
163 | { }, | |
164 | }; | |
165 | ||
166 | static struct resource em7210_uart_resource = { | |
167 | .start = IQ31244_UART, | |
168 | .end = IQ31244_UART + 7, | |
169 | .flags = IORESOURCE_MEM, | |
170 | }; | |
171 | ||
172 | static struct platform_device em7210_serial_device = { | |
173 | .name = "serial8250", | |
174 | .id = PLAT8250_DEV_PLATFORM, | |
175 | .dev = { | |
176 | .platform_data = em7210_serial_port, | |
177 | }, | |
178 | .num_resources = 1, | |
179 | .resource = &em7210_uart_resource, | |
180 | }; | |
181 | ||
182 | void em7210_power_off(void) | |
183 | { | |
184 | *IOP3XX_GPOE &= 0xfe; | |
185 | *IOP3XX_GPOD |= 0x01; | |
186 | } | |
187 | ||
188 | static void __init em7210_init_machine(void) | |
189 | { | |
190 | platform_device_register(&em7210_serial_device); | |
191 | platform_device_register(&iop3xx_i2c0_device); | |
192 | platform_device_register(&iop3xx_i2c1_device); | |
193 | platform_device_register(&em7210_flash_device); | |
194 | platform_device_register(&iop3xx_dma_0_channel); | |
195 | platform_device_register(&iop3xx_dma_1_channel); | |
196 | ||
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197 | i2c_register_board_info(0, em7210_i2c_devices, |
198 | ARRAY_SIZE(em7210_i2c_devices)); | |
199 | ||
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200 | |
201 | pm_power_off = em7210_power_off; | |
202 | } | |
203 | ||
204 | MACHINE_START(EM7210, "Lanner EM7210") | |
1896746d | 205 | .atag_offset = 0x100, |
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206 | .map_io = em7210_map_io, |
207 | .init_irq = iop32x_init_irq, | |
208 | .timer = &em7210_timer, | |
209 | .init_machine = em7210_init_machine, | |
bec92b1e | 210 | .restart = iop3xx_restart, |
a8135fcf | 211 | MACHINE_END |