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 */
42static 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 */
52static 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
61void __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
76static int __init
77glantank_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
95static 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
103static int __init glantank_pci_init(void)
104{
105	if (machine_is_glantank())
106		pci_common_init(&glantank_pci);
107
108	return 0;
109}
110
111subsys_initcall(glantank_pci_init);
112
113
114/*
115 * GLAN Tank machine initialization.
116 */
117static struct physmap_flash_data glantank_flash_data = {
118	.width		= 2,
119};
120
121static struct resource glantank_flash_resource = {
122	.start		= 0xf0000000,
123	.end		= 0xf007ffff,
124	.flags		= IORESOURCE_MEM,
125};
126
127static 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
137static 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
150static struct resource glantank_uart_resource = {
151	.start		= GLANTANK_UART,
152	.end		= GLANTANK_UART + 7,
153	.flags		= IORESOURCE_MEM,
154};
155
156static 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
166static struct f75375s_platform_data glantank_f75375s = {
167	.pwm		= { 255, 255 },
168	.pwm_enable	= { 0, 0 },
169};
170
171static 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
181static void glantank_power_off(void)
182{
183	__raw_writeb(0x01, IOMEM(0xfe8d0004));
184
185	while (1)
186		;
187}
188
189static 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
205MACHINE_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,
213MACHINE_END
214