blob: 74c65ce221dee74ab6aca8b467a42e12241af4e1 [file] [log] [blame]
Lennert Buytenhek0c92e832006-09-21 02:46:03 +01001/*
2 * arch/arm/mach-iop32x/glantank.c
3 *
4 * Board support code for the GLAN Tank.
5 *
Martin Michlmayrbd7b8852007-12-27 14:09:07 +01006 * Copyright (C) 2006, 2007 Martin Michlmayr <tbm@cyrius.com>
Lennert Buytenhek0c92e832006-09-21 02:46:03 +01007 * 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/kernel.h>
18#include <linux/pci.h>
19#include <linux/string.h>
20#include <linux/slab.h>
21#include <linux/serial_core.h>
22#include <linux/serial_8250.h>
23#include <linux/mtd/physmap.h>
Martin Michlmayrbd7b8852007-12-27 14:09:07 +010024#include <linux/i2c.h>
Lennert Buytenhek0c92e832006-09-21 02:46:03 +010025#include <linux/platform_device.h>
26#include <asm/hardware.h>
27#include <asm/io.h>
28#include <asm/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/page.h>
Dan Williams3668b452007-02-13 17:13:34 +010035#include <asm/arch/time.h>
Lennert Buytenhek0c92e832006-09-21 02:46:03 +010036
37/*
38 * GLAN Tank timer tick configuration.
39 */
40static void __init glantank_timer_init(void)
41{
42 /* 33.333 MHz crystal. */
Dan Williams3668b452007-02-13 17:13:34 +010043 iop_init_time(200000000);
Lennert Buytenhek0c92e832006-09-21 02:46:03 +010044}
45
46static struct sys_timer glantank_timer = {
47 .init = glantank_timer_init,
Dan Williams3668b452007-02-13 17:13:34 +010048 .offset = iop_gettimeoffset,
Lennert Buytenhek0c92e832006-09-21 02:46:03 +010049};
50
51
52/*
53 * GLAN Tank I/O.
54 */
55static struct map_desc glantank_io_desc[] __initdata = {
56 { /* on-board devices */
57 .virtual = GLANTANK_UART,
58 .pfn = __phys_to_pfn(GLANTANK_UART),
59 .length = 0x00100000,
60 .type = MT_DEVICE
61 },
62};
63
64void __init glantank_map_io(void)
65{
66 iop3xx_map_io();
67 iotable_init(glantank_io_desc, ARRAY_SIZE(glantank_io_desc));
68}
69
70
71/*
72 * GLAN Tank PCI.
73 */
74#define INTA IRQ_IOP32X_XINT0
75#define INTB IRQ_IOP32X_XINT1
76#define INTC IRQ_IOP32X_XINT2
77#define INTD IRQ_IOP32X_XINT3
78
Dan Williamsd73d8012007-05-15 01:03:36 +010079static int __init
Lennert Buytenhek0c92e832006-09-21 02:46:03 +010080glantank_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
81{
82 static int pci_irq_table[][4] = {
83 /*
84 * PCI IDSEL/INTPIN->INTLINE
85 * A B C D
86 */
87 {INTD, INTD, INTD, INTD}, /* UART (8250) */
88 {INTA, INTA, INTA, INTA}, /* Ethernet (E1000) */
89 {INTB, INTB, INTB, INTB}, /* IDE (AEC6280R) */
90 {INTC, INTC, INTC, INTC}, /* USB (NEC) */
91 };
92
93 BUG_ON(pin < 1 || pin > 4);
94
95 return pci_irq_table[slot % 4][pin - 1];
96}
97
98static struct hw_pci glantank_pci __initdata = {
99 .swizzle = pci_std_swizzle,
100 .nr_controllers = 1,
101 .setup = iop3xx_pci_setup,
102 .preinit = iop3xx_pci_preinit,
103 .scan = iop3xx_pci_scan_bus,
104 .map_irq = glantank_pci_map_irq,
105};
106
107static int __init glantank_pci_init(void)
108{
109 if (machine_is_glantank())
110 pci_common_init(&glantank_pci);
111
112 return 0;
113}
114
115subsys_initcall(glantank_pci_init);
116
117
118/*
119 * GLAN Tank machine initialization.
120 */
121static struct physmap_flash_data glantank_flash_data = {
Gordon Farquharsonb696b6b2008-01-26 08:35:44 +0100122 .width = 2,
Lennert Buytenhek0c92e832006-09-21 02:46:03 +0100123};
124
125static struct resource glantank_flash_resource = {
126 .start = 0xf0000000,
127 .end = 0xf007ffff,
128 .flags = IORESOURCE_MEM,
129};
130
131static struct platform_device glantank_flash_device = {
132 .name = "physmap-flash",
133 .id = 0,
134 .dev = {
135 .platform_data = &glantank_flash_data,
136 },
137 .num_resources = 1,
138 .resource = &glantank_flash_resource,
139};
140
141static struct plat_serial8250_port glantank_serial_port[] = {
142 {
143 .mapbase = GLANTANK_UART,
144 .membase = (char *)GLANTANK_UART,
145 .irq = IRQ_IOP32X_XINT3,
146 .flags = UPF_SKIP_TEST,
147 .iotype = UPIO_MEM,
148 .regshift = 0,
149 .uartclk = 1843200,
150 },
151 { },
152};
153
154static struct resource glantank_uart_resource = {
155 .start = GLANTANK_UART,
156 .end = GLANTANK_UART + 7,
157 .flags = IORESOURCE_MEM,
158};
159
160static struct platform_device glantank_serial_device = {
161 .name = "serial8250",
162 .id = PLAT8250_DEV_PLATFORM,
163 .dev = {
164 .platform_data = glantank_serial_port,
165 },
166 .num_resources = 1,
167 .resource = &glantank_uart_resource,
168};
169
Martin Michlmayrbd7b8852007-12-27 14:09:07 +0100170static struct i2c_board_info __initdata glantank_i2c_devices[] = {
171 {
172 I2C_BOARD_INFO("rtc-rs5c372", 0x32),
173 .type = "rs5c372a",
174 },
175};
176
Lennert Buytenhek0c92e832006-09-21 02:46:03 +0100177static void glantank_power_off(void)
178{
179 __raw_writeb(0x01, 0xfe8d0004);
180
181 while (1)
182 ;
183}
184
185static void __init glantank_init_machine(void)
186{
187 platform_device_register(&iop3xx_i2c0_device);
188 platform_device_register(&iop3xx_i2c1_device);
189 platform_device_register(&glantank_flash_device);
190 platform_device_register(&glantank_serial_device);
Dan Williams2492c842007-01-02 13:52:31 -0700191 platform_device_register(&iop3xx_dma_0_channel);
192 platform_device_register(&iop3xx_dma_1_channel);
Lennert Buytenhek0c92e832006-09-21 02:46:03 +0100193
Martin Michlmayrbd7b8852007-12-27 14:09:07 +0100194 i2c_register_board_info(0, glantank_i2c_devices,
195 ARRAY_SIZE(glantank_i2c_devices));
196
Lennert Buytenhek0c92e832006-09-21 02:46:03 +0100197 pm_power_off = glantank_power_off;
198}
199
200MACHINE_START(GLANTANK, "GLAN Tank")
201 /* Maintainer: Lennert Buytenhek <buytenh@wantstofly.org> */
202 .phys_io = GLANTANK_UART,
203 .io_pg_offst = ((GLANTANK_UART) >> 18) & 0xfffc,
204 .boot_params = 0xa0000100,
205 .map_io = glantank_map_io,
206 .init_irq = iop32x_init_irq,
207 .timer = &glantank_timer,
208 .init_machine = glantank_init_machine,
209MACHINE_END