1 /*
2 * arch/arm/mach-iop32x/glantank.c
3 *
4 * Board support code for the GLAN Tank.
5 *
6 * Copyright (C) 2006, 2007 Martin Michlmayr <tbm@cyrius.com>
7 * Copyright (C) 2006 Lennert Buytenhek <buytenh@wantstofly.org>
8 *
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the
11 * Free Software Foundation; either version 2 of the License, or (at your
12 * option) any later version.
13 */
14
15 #include <linux/mm.h>
16 #include <linux/init.h>
17 #include <linux/f75375s.h>
18 #include <linux/kernel.h>
19 #include <linux/pci.h>
20 #include <linux/pm.h>
21 #include <linux/string.h>
22 #include <linux/serial_core.h>
23 #include <linux/serial_8250.h>
24 #include <linux/mtd/physmap.h>
25 #include <linux/i2c.h>
26 #include <linux/platform_device.h>
27 #include <linux/io.h>
28 #include <mach/hardware.h>
29 #include <asm/irq.h>
30 #include <asm/mach/arch.h>
31 #include <asm/mach/map.h>
32 #include <asm/mach/pci.h>
33 #include <asm/mach/time.h>
34 #include <asm/mach-types.h>
35 #include <asm/page.h>
36 #include <mach/time.h>
37 #include "gpio-iop32x.h"
38
39 /*
40 * GLAN Tank timer tick configuration.
41 */
glantank_timer_init(void)42 static void __init glantank_timer_init(void)
43 {
44 /* 33.333 MHz crystal. */
45 iop_init_time(200000000);
46 }
47
48
49 /*
50 * GLAN Tank I/O.
51 */
52 static struct map_desc glantank_io_desc[] __initdata = {
53 { /* on-board devices */
54 .virtual = GLANTANK_UART,
55 .pfn = __phys_to_pfn(GLANTANK_UART),
56 .length = 0x00100000,
57 .type = MT_DEVICE
58 },
59 };
60
glantank_map_io(void)61 void __init glantank_map_io(void)
62 {
63 iop3xx_map_io();
64 iotable_init(glantank_io_desc, ARRAY_SIZE(glantank_io_desc));
65 }
66
67
68 /*
69 * GLAN Tank PCI.
70 */
71 #define INTA IRQ_IOP32X_XINT0
72 #define INTB IRQ_IOP32X_XINT1
73 #define INTC IRQ_IOP32X_XINT2
74 #define INTD IRQ_IOP32X_XINT3
75
76 static int __init
glantank_pci_map_irq(const struct pci_dev * dev,u8 slot,u8 pin)77 glantank_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
78 {
79 static int pci_irq_table[][4] = {
80 /*
81 * PCI IDSEL/INTPIN->INTLINE
82 * A B C D
83 */
84 {INTD, INTD, INTD, INTD}, /* UART (8250) */
85 {INTA, INTA, INTA, INTA}, /* Ethernet (E1000) */
86 {INTB, INTB, INTB, INTB}, /* IDE (AEC6280R) */
87 {INTC, INTC, INTC, INTC}, /* USB (NEC) */
88 };
89
90 BUG_ON(pin < 1 || pin > 4);
91
92 return pci_irq_table[slot % 4][pin - 1];
93 }
94
95 static struct hw_pci glantank_pci __initdata = {
96 .nr_controllers = 1,
97 .ops = &iop3xx_ops,
98 .setup = iop3xx_pci_setup,
99 .preinit = iop3xx_pci_preinit,
100 .map_irq = glantank_pci_map_irq,
101 };
102
glantank_pci_init(void)103 static int __init glantank_pci_init(void)
104 {
105 if (machine_is_glantank())
106 pci_common_init(&glantank_pci);
107
108 return 0;
109 }
110
111 subsys_initcall(glantank_pci_init);
112
113
114 /*
115 * GLAN Tank machine initialization.
116 */
117 static struct physmap_flash_data glantank_flash_data = {
118 .width = 2,
119 };
120
121 static struct resource glantank_flash_resource = {
122 .start = 0xf0000000,
123 .end = 0xf007ffff,
124 .flags = IORESOURCE_MEM,
125 };
126
127 static struct platform_device glantank_flash_device = {
128 .name = "physmap-flash",
129 .id = 0,
130 .dev = {
131 .platform_data = &glantank_flash_data,
132 },
133 .num_resources = 1,
134 .resource = &glantank_flash_resource,
135 };
136
137 static struct plat_serial8250_port glantank_serial_port[] = {
138 {
139 .mapbase = GLANTANK_UART,
140 .membase = (char *)GLANTANK_UART,
141 .irq = IRQ_IOP32X_XINT3,
142 .flags = UPF_SKIP_TEST,
143 .iotype = UPIO_MEM,
144 .regshift = 0,
145 .uartclk = 1843200,
146 },
147 { },
148 };
149
150 static struct resource glantank_uart_resource = {
151 .start = GLANTANK_UART,
152 .end = GLANTANK_UART + 7,
153 .flags = IORESOURCE_MEM,
154 };
155
156 static struct platform_device glantank_serial_device = {
157 .name = "serial8250",
158 .id = PLAT8250_DEV_PLATFORM,
159 .dev = {
160 .platform_data = glantank_serial_port,
161 },
162 .num_resources = 1,
163 .resource = &glantank_uart_resource,
164 };
165
166 static struct f75375s_platform_data glantank_f75375s = {
167 .pwm = { 255, 255 },
168 .pwm_enable = { 0, 0 },
169 };
170
171 static struct i2c_board_info __initdata glantank_i2c_devices[] = {
172 {
173 I2C_BOARD_INFO("rs5c372a", 0x32),
174 },
175 {
176 I2C_BOARD_INFO("f75375", 0x2e),
177 .platform_data = &glantank_f75375s,
178 },
179 };
180
glantank_power_off(void)181 static void glantank_power_off(void)
182 {
183 __raw_writeb(0x01, IOMEM(0xfe8d0004));
184
185 while (1)
186 ;
187 }
188
glantank_init_machine(void)189 static void __init glantank_init_machine(void)
190 {
191 register_iop32x_gpio();
192 platform_device_register(&iop3xx_i2c0_device);
193 platform_device_register(&iop3xx_i2c1_device);
194 platform_device_register(&glantank_flash_device);
195 platform_device_register(&glantank_serial_device);
196 platform_device_register(&iop3xx_dma_0_channel);
197 platform_device_register(&iop3xx_dma_1_channel);
198
199 i2c_register_board_info(0, glantank_i2c_devices,
200 ARRAY_SIZE(glantank_i2c_devices));
201
202 pm_power_off = glantank_power_off;
203 }
204
205 MACHINE_START(GLANTANK, "GLAN Tank")
206 /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
207 .atag_offset = 0x100,
208 .map_io = glantank_map_io,
209 .init_irq = iop32x_init_irq,
210 .init_time = glantank_timer_init,
211 .init_machine = glantank_init_machine,
212 .restart = iop3xx_restart,
213 MACHINE_END
214
