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Arnaud Patarda8135fc2007-07-15 20:12:23 +01001/*
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>
Arnaud Patardfe885fa2007-07-18 21:04:00 +010025#include <linux/i2c.h>
Russell Kinga09e64f2008-08-05 16:14:15 +010026#include <mach/hardware.h>
Arnaud Patarda8135fc2007-07-15 20:12:23 +010027#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>
Russell Kinga09e64f2008-08-05 16:14:15 +010034#include <mach/time.h>
Arnaud Patarda8135fc2007-07-15 20:12:23 +010035
36static 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
Arnaud Patardfe885fa2007-07-18 21:04:00 +010043/*
44 * EM7210 RTC
45 */
46static struct i2c_board_info __initdata em7210_i2c_devices[] = {
47 {
Jean Delvare3760f732008-04-29 23:11:40 +020048 I2C_BOARD_INFO("rs5c372a", 0x32),
Arnaud Patardfe885fa2007-07-18 21:04:00 +010049 },
50};
Arnaud Patarda8135fc2007-07-15 20:12:23 +010051
52/*
53 * EM7210 I/O
54 */
55static struct map_desc em7210_io_desc[] __initdata = {
56 { /* on-board devices */
57 .virtual = IQ31244_UART,
58 .pfn = __phys_to_pfn(IQ31244_UART),
59 .length = 0x00100000,
60 .type = MT_DEVICE,
61 },
62};
63
64void __init em7210_map_io(void)
65{
66 iop3xx_map_io();
67 iotable_init(em7210_io_desc, ARRAY_SIZE(em7210_io_desc));
68}
69
70
71/*
72 * EM7210 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
79static int __init
Ralf Baechled5341942011-06-10 15:30:21 +010080em7210_pci_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
Arnaud Patarda8135fc2007-07-15 20:12:23 +010081{
82 static int pci_irq_table[][4] = {
83 /*
84 * PCI IDSEL/INTPIN->INTLINE
85 * A B C D
86 */
87 {INTB, INTB, INTB, INTB}, /* console / uart */
88 {INTA, INTA, INTA, INTA}, /* 1st 82541 */
89 {INTD, INTD, INTD, INTD}, /* 2nd 82541 */
90 {INTC, INTC, INTC, INTC}, /* GD31244 */
91 {INTD, INTA, INTA, INTA}, /* mini-PCI */
92 {INTD, INTC, INTA, INTA}, /* NEC USB */
93 };
94
95 if (pin < 1 || pin > 4)
96 return -1;
97
98 return pci_irq_table[slot % 6][pin - 1];
99}
100
101static struct hw_pci em7210_pci __initdata = {
Arnaud Patarda8135fc2007-07-15 20:12:23 +0100102 .nr_controllers = 1,
Russell Kingc23bfc32012-03-10 12:49:16 +0000103 .ops = &iop3xx_ops,
Arnaud Patarda8135fc2007-07-15 20:12:23 +0100104 .setup = iop3xx_pci_setup,
105 .preinit = iop3xx_pci_preinit,
Arnaud Patarda8135fc2007-07-15 20:12:23 +0100106 .map_irq = em7210_pci_map_irq,
107};
108
109static int __init em7210_pci_init(void)
110{
111 if (machine_is_em7210())
112 pci_common_init(&em7210_pci);
113
114 return 0;
115}
116
117subsys_initcall(em7210_pci_init);
118
119
120/*
121 * EM7210 Flash
122 */
123static struct physmap_flash_data em7210_flash_data = {
124 .width = 2,
125};
126
127static struct resource em7210_flash_resource = {
128 .start = 0xf0000000,
129 .end = 0xf1ffffff,
130 .flags = IORESOURCE_MEM,
131};
132
133static struct platform_device em7210_flash_device = {
134 .name = "physmap-flash",
135 .id = 0,
136 .dev = {
137 .platform_data = &em7210_flash_data,
138 },
139 .num_resources = 1,
140 .resource = &em7210_flash_resource,
141};
142
143
144/*
145 * EM7210 UART
146 * The physical address of the serial port is 0xfe800000,
147 * so it can be used for physical and virtual address.
148 */
149static struct plat_serial8250_port em7210_serial_port[] = {
150 {
151 .mapbase = IQ31244_UART,
152 .membase = (char *)IQ31244_UART,
153 .irq = IRQ_IOP32X_XINT1,
154 .flags = UPF_SKIP_TEST,
155 .iotype = UPIO_MEM,
156 .regshift = 0,
157 .uartclk = 1843200,
158 },
159 { },
160};
161
162static struct resource em7210_uart_resource = {
163 .start = IQ31244_UART,
164 .end = IQ31244_UART + 7,
165 .flags = IORESOURCE_MEM,
166};
167
168static struct platform_device em7210_serial_device = {
169 .name = "serial8250",
170 .id = PLAT8250_DEV_PLATFORM,
171 .dev = {
172 .platform_data = em7210_serial_port,
173 },
174 .num_resources = 1,
175 .resource = &em7210_uart_resource,
176};
177
178void em7210_power_off(void)
179{
180 *IOP3XX_GPOE &= 0xfe;
181 *IOP3XX_GPOD |= 0x01;
182}
183
184static void __init em7210_init_machine(void)
185{
186 platform_device_register(&em7210_serial_device);
187 platform_device_register(&iop3xx_i2c0_device);
188 platform_device_register(&iop3xx_i2c1_device);
189 platform_device_register(&em7210_flash_device);
190 platform_device_register(&iop3xx_dma_0_channel);
191 platform_device_register(&iop3xx_dma_1_channel);
192
Arnaud Patardfe885fa2007-07-18 21:04:00 +0100193 i2c_register_board_info(0, em7210_i2c_devices,
194 ARRAY_SIZE(em7210_i2c_devices));
195
Arnaud Patarda8135fc2007-07-15 20:12:23 +0100196
197 pm_power_off = em7210_power_off;
198}
199
200MACHINE_START(EM7210, "Lanner EM7210")
Nicolas Pitre18967462011-07-05 22:38:12 -0400201 .atag_offset = 0x100,
Arnaud Patarda8135fc2007-07-15 20:12:23 +0100202 .map_io = em7210_map_io,
203 .init_irq = iop32x_init_irq,
Stephen Warren6bb27d72012-11-08 12:40:59 -0700204 .init_time = em7210_timer_init,
Arnaud Patarda8135fc2007-07-15 20:12:23 +0100205 .init_machine = em7210_init_machine,
Russell Kingbec92b12011-11-05 11:26:32 +0000206 .restart = iop3xx_restart,
Arnaud Patarda8135fc2007-07-15 20:12:23 +0100207MACHINE_END