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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> |
a8135fcf AP |
26 | #include <asm/hardware.h> |
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> | |
34 | #include <asm/arch/time.h> | |
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, | |
45 | .offset = iop_gettimeoffset, | |
46 | }; | |
47 | ||
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48 | /* |
49 | * EM7210 RTC | |
50 | */ | |
51 | static struct i2c_board_info __initdata em7210_i2c_devices[] = { | |
52 | { | |
53 | I2C_BOARD_INFO("rtc-rs5c372", 0x32), | |
54 | .type = "rs5c372a", | |
55 | }, | |
56 | }; | |
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57 | |
58 | /* | |
59 | * EM7210 I/O | |
60 | */ | |
61 | static struct map_desc em7210_io_desc[] __initdata = { | |
62 | { /* on-board devices */ | |
63 | .virtual = IQ31244_UART, | |
64 | .pfn = __phys_to_pfn(IQ31244_UART), | |
65 | .length = 0x00100000, | |
66 | .type = MT_DEVICE, | |
67 | }, | |
68 | }; | |
69 | ||
70 | void __init em7210_map_io(void) | |
71 | { | |
72 | iop3xx_map_io(); | |
73 | iotable_init(em7210_io_desc, ARRAY_SIZE(em7210_io_desc)); | |
74 | } | |
75 | ||
76 | ||
77 | /* | |
78 | * EM7210 PCI | |
79 | */ | |
80 | #define INTA IRQ_IOP32X_XINT0 | |
81 | #define INTB IRQ_IOP32X_XINT1 | |
82 | #define INTC IRQ_IOP32X_XINT2 | |
83 | #define INTD IRQ_IOP32X_XINT3 | |
84 | ||
85 | static int __init | |
86 | em7210_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin) | |
87 | { | |
88 | static int pci_irq_table[][4] = { | |
89 | /* | |
90 | * PCI IDSEL/INTPIN->INTLINE | |
91 | * A B C D | |
92 | */ | |
93 | {INTB, INTB, INTB, INTB}, /* console / uart */ | |
94 | {INTA, INTA, INTA, INTA}, /* 1st 82541 */ | |
95 | {INTD, INTD, INTD, INTD}, /* 2nd 82541 */ | |
96 | {INTC, INTC, INTC, INTC}, /* GD31244 */ | |
97 | {INTD, INTA, INTA, INTA}, /* mini-PCI */ | |
98 | {INTD, INTC, INTA, INTA}, /* NEC USB */ | |
99 | }; | |
100 | ||
101 | if (pin < 1 || pin > 4) | |
102 | return -1; | |
103 | ||
104 | return pci_irq_table[slot % 6][pin - 1]; | |
105 | } | |
106 | ||
107 | static struct hw_pci em7210_pci __initdata = { | |
108 | .swizzle = pci_std_swizzle, | |
109 | .nr_controllers = 1, | |
110 | .setup = iop3xx_pci_setup, | |
111 | .preinit = iop3xx_pci_preinit, | |
112 | .scan = iop3xx_pci_scan_bus, | |
113 | .map_irq = em7210_pci_map_irq, | |
114 | }; | |
115 | ||
116 | static int __init em7210_pci_init(void) | |
117 | { | |
118 | if (machine_is_em7210()) | |
119 | pci_common_init(&em7210_pci); | |
120 | ||
121 | return 0; | |
122 | } | |
123 | ||
124 | subsys_initcall(em7210_pci_init); | |
125 | ||
126 | ||
127 | /* | |
128 | * EM7210 Flash | |
129 | */ | |
130 | static struct physmap_flash_data em7210_flash_data = { | |
131 | .width = 2, | |
132 | }; | |
133 | ||
134 | static struct resource em7210_flash_resource = { | |
135 | .start = 0xf0000000, | |
136 | .end = 0xf1ffffff, | |
137 | .flags = IORESOURCE_MEM, | |
138 | }; | |
139 | ||
140 | static struct platform_device em7210_flash_device = { | |
141 | .name = "physmap-flash", | |
142 | .id = 0, | |
143 | .dev = { | |
144 | .platform_data = &em7210_flash_data, | |
145 | }, | |
146 | .num_resources = 1, | |
147 | .resource = &em7210_flash_resource, | |
148 | }; | |
149 | ||
150 | ||
151 | /* | |
152 | * EM7210 UART | |
153 | * The physical address of the serial port is 0xfe800000, | |
154 | * so it can be used for physical and virtual address. | |
155 | */ | |
156 | static struct plat_serial8250_port em7210_serial_port[] = { | |
157 | { | |
158 | .mapbase = IQ31244_UART, | |
159 | .membase = (char *)IQ31244_UART, | |
160 | .irq = IRQ_IOP32X_XINT1, | |
161 | .flags = UPF_SKIP_TEST, | |
162 | .iotype = UPIO_MEM, | |
163 | .regshift = 0, | |
164 | .uartclk = 1843200, | |
165 | }, | |
166 | { }, | |
167 | }; | |
168 | ||
169 | static struct resource em7210_uart_resource = { | |
170 | .start = IQ31244_UART, | |
171 | .end = IQ31244_UART + 7, | |
172 | .flags = IORESOURCE_MEM, | |
173 | }; | |
174 | ||
175 | static struct platform_device em7210_serial_device = { | |
176 | .name = "serial8250", | |
177 | .id = PLAT8250_DEV_PLATFORM, | |
178 | .dev = { | |
179 | .platform_data = em7210_serial_port, | |
180 | }, | |
181 | .num_resources = 1, | |
182 | .resource = &em7210_uart_resource, | |
183 | }; | |
184 | ||
185 | void em7210_power_off(void) | |
186 | { | |
187 | *IOP3XX_GPOE &= 0xfe; | |
188 | *IOP3XX_GPOD |= 0x01; | |
189 | } | |
190 | ||
191 | static void __init em7210_init_machine(void) | |
192 | { | |
193 | platform_device_register(&em7210_serial_device); | |
194 | platform_device_register(&iop3xx_i2c0_device); | |
195 | platform_device_register(&iop3xx_i2c1_device); | |
196 | platform_device_register(&em7210_flash_device); | |
197 | platform_device_register(&iop3xx_dma_0_channel); | |
198 | platform_device_register(&iop3xx_dma_1_channel); | |
199 | ||
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200 | i2c_register_board_info(0, em7210_i2c_devices, |
201 | ARRAY_SIZE(em7210_i2c_devices)); | |
202 | ||
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203 | |
204 | pm_power_off = em7210_power_off; | |
205 | } | |
206 | ||
207 | MACHINE_START(EM7210, "Lanner EM7210") | |
208 | .phys_io = IQ31244_UART, | |
209 | .io_pg_offst = ((IQ31244_UART) >> 18) & 0xfffc, | |
210 | .boot_params = 0xa0000100, | |
211 | .map_io = em7210_map_io, | |
212 | .init_irq = iop32x_init_irq, | |
213 | .timer = &em7210_timer, | |
214 | .init_machine = em7210_init_machine, | |
215 | MACHINE_END |