1 /*
2 * linux/arch/arm/mach-omap2/board-ldp.c
3 *
4 * Copyright (C) 2008 Texas Instruments Inc.
5 * Nishant Kamat <nskamat@ti.com>
6 *
7 * Modified from mach-omap2/board-3430sdp.c
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 */
13
14 #include <linux/kernel.h>
15 #include <linux/init.h>
16 #include <linux/platform_device.h>
17 #include <linux/delay.h>
18 #include <linux/input.h>
19 #include <linux/workqueue.h>
20 #include <linux/err.h>
21 #include <linux/clk.h>
22 #include <linux/spi/spi.h>
23 #include <linux/spi/ads7846.h>
24 #include <linux/i2c/twl4030.h>
25
26 #include <mach/hardware.h>
27 #include <asm/mach-types.h>
28 #include <asm/mach/arch.h>
29 #include <asm/mach/map.h>
30
31 #include <mach/board-ldp.h>
32 #include <mach/mcspi.h>
33 #include <mach/gpio.h>
34 #include <mach/board.h>
35 #include <mach/common.h>
36 #include <mach/gpmc.h>
37
38 #include <asm/io.h>
39 #include <asm/delay.h>
40 #include <mach/control.h>
41
42 #include "mmc-twl4030.h"
43
44 #define SDP3430_SMC91X_CS 3
45
46 static struct resource ldp_smc911x_resources[] = {
47 [0] = {
48 .start = OMAP34XX_ETHR_START,
49 .end = OMAP34XX_ETHR_START + SZ_4K,
50 .flags = IORESOURCE_MEM,
51 },
52 [1] = {
53 .start = 0,
54 .end = 0,
55 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
56 },
57 };
58
59 static struct platform_device ldp_smc911x_device = {
60 .name = "smc911x",
61 .id = -1,
62 .num_resources = ARRAY_SIZE(ldp_smc911x_resources),
63 .resource = ldp_smc911x_resources,
64 };
65
66 static struct platform_device *ldp_devices[] __initdata = {
67 &ldp_smc911x_device,
68 };
69
ldp_init_smc911x(void)70 static inline void __init ldp_init_smc911x(void)
71 {
72 int eth_cs;
73 unsigned long cs_mem_base;
74 int eth_gpio = 0;
75
76 eth_cs = LDP_SMC911X_CS;
77
78 if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
79 printk(KERN_ERR "Failed to request GPMC mem for smc911x\n");
80 return;
81 }
82
83 ldp_smc911x_resources[0].start = cs_mem_base + 0x0;
84 ldp_smc911x_resources[0].end = cs_mem_base + 0xff;
85 udelay(100);
86
87 eth_gpio = LDP_SMC911X_GPIO;
88
89 ldp_smc911x_resources[1].start = OMAP_GPIO_IRQ(eth_gpio);
90
91 if (gpio_request(eth_gpio, "smc911x irq") < 0) {
92 printk(KERN_ERR "Failed to request GPIO%d for smc911x IRQ\n",
93 eth_gpio);
94 return;
95 }
96 gpio_direction_input(eth_gpio);
97 }
98
omap_ldp_init_irq(void)99 static void __init omap_ldp_init_irq(void)
100 {
101 omap2_init_common_hw();
102 omap_init_irq();
103 omap_gpio_init();
104 ldp_init_smc911x();
105 }
106
107 static struct omap_uart_config ldp_uart_config __initdata = {
108 .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
109 };
110
111 static struct omap_board_config_kernel ldp_config[] __initdata = {
112 { OMAP_TAG_UART, &ldp_uart_config },
113 };
114
115 static struct twl4030_gpio_platform_data ldp_gpio_data = {
116 .gpio_base = OMAP_MAX_GPIO_LINES,
117 .irq_base = TWL4030_GPIO_IRQ_BASE,
118 .irq_end = TWL4030_GPIO_IRQ_END,
119 };
120
121 static struct twl4030_platform_data ldp_twldata = {
122 .irq_base = TWL4030_IRQ_BASE,
123 .irq_end = TWL4030_IRQ_END,
124
125 /* platform_data for children goes here */
126 .gpio = &ldp_gpio_data,
127 };
128
129 static struct i2c_board_info __initdata ldp_i2c_boardinfo[] = {
130 {
131 I2C_BOARD_INFO("twl4030", 0x48),
132 .flags = I2C_CLIENT_WAKE,
133 .irq = INT_34XX_SYS_NIRQ,
134 .platform_data = &ldp_twldata,
135 },
136 };
137
omap_i2c_init(void)138 static int __init omap_i2c_init(void)
139 {
140 omap_register_i2c_bus(1, 2600, ldp_i2c_boardinfo,
141 ARRAY_SIZE(ldp_i2c_boardinfo));
142 omap_register_i2c_bus(2, 400, NULL, 0);
143 omap_register_i2c_bus(3, 400, NULL, 0);
144 return 0;
145 }
146
147 static struct twl4030_hsmmc_info mmc[] __initdata = {
148 {
149 .mmc = 1,
150 .wires = 4,
151 .gpio_cd = -EINVAL,
152 .gpio_wp = -EINVAL,
153 },
154 {} /* Terminator */
155 };
156
omap_ldp_init(void)157 static void __init omap_ldp_init(void)
158 {
159 omap_i2c_init();
160 platform_add_devices(ldp_devices, ARRAY_SIZE(ldp_devices));
161 omap_board_config = ldp_config;
162 omap_board_config_size = ARRAY_SIZE(ldp_config);
163 omap_serial_init();
164 twl4030_mmc_init(mmc);
165 }
166
omap_ldp_map_io(void)167 static void __init omap_ldp_map_io(void)
168 {
169 omap2_set_globals_343x();
170 omap2_map_common_io();
171 }
172
173 MACHINE_START(OMAP_LDP, "OMAP LDP board")
174 .phys_io = 0x48000000,
175 .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
176 .boot_params = 0x80000100,
177 .map_io = omap_ldp_map_io,
178 .init_irq = omap_ldp_init_irq,
179 .init_machine = omap_ldp_init,
180 .timer = &omap_timer,
181 MACHINE_END
182