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10#include <linux/kernel.h>
11#include <linux/init.h>
12#include <linux/gpio.h>
13#include <linux/serial_8250.h>
14#include <linux/smsc911x.h>
15#include <linux/interrupt.h>
16
17#include <mach/gpmc.h>
18
19#define ZOOM2_SMSC911X_CS 7
20#define ZOOM2_SMSC911X_GPIO 158
21#define ZOOM2_QUADUART_CS 3
22#define ZOOM2_QUADUART_GPIO 102
23#define QUART_CLK 1843200
24#define DEBUG_BASE 0x08000000
25#define ZOOM2_ETHR_START DEBUG_BASE
26
27static struct resource zoom2_smsc911x_resources[] = {
28 [0] = {
29 .start = ZOOM2_ETHR_START,
30 .end = ZOOM2_ETHR_START + SZ_4K,
31 .flags = IORESOURCE_MEM,
32 },
33 [1] = {
34 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
35 },
36};
37
38static struct smsc911x_platform_config zoom2_smsc911x_config = {
39 .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
40 .irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
41 .flags = SMSC911X_USE_32BIT,
42 .phy_interface = PHY_INTERFACE_MODE_MII,
43};
44
45static struct platform_device zoom2_smsc911x_device = {
46 .name = "smsc911x",
47 .id = -1,
48 .num_resources = ARRAY_SIZE(zoom2_smsc911x_resources),
49 .resource = zoom2_smsc911x_resources,
50 .dev = {
51 .platform_data = &zoom2_smsc911x_config,
52 },
53};
54
55static inline void __init zoom2_init_smsc911x(void)
56{
57 int eth_cs;
58 unsigned long cs_mem_base;
59 int eth_gpio = 0;
60
61 eth_cs = ZOOM2_SMSC911X_CS;
62
63 if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
64 printk(KERN_ERR "Failed to request GPMC mem for smsc911x\n");
65 return;
66 }
67
68 zoom2_smsc911x_resources[0].start = cs_mem_base + 0x0;
69 zoom2_smsc911x_resources[0].end = cs_mem_base + 0xff;
70
71 eth_gpio = ZOOM2_SMSC911X_GPIO;
72
73 zoom2_smsc911x_resources[1].start = OMAP_GPIO_IRQ(eth_gpio);
74
75 if (gpio_request(eth_gpio, "smsc911x irq") < 0) {
76 printk(KERN_ERR "Failed to request GPIO%d for smsc911x IRQ\n",
77 eth_gpio);
78 return;
79 }
80 gpio_direction_input(eth_gpio);
81}
82
83static struct plat_serial8250_port serial_platform_data[] = {
84 {
85 .mapbase = 0x10000000,
86 .irq = OMAP_GPIO_IRQ(102),
87 .flags = UPF_BOOT_AUTOCONF|UPF_IOREMAP|UPF_SHARE_IRQ,
88 .irqflags = IRQF_SHARED | IRQF_TRIGGER_RISING,
89 .iotype = UPIO_MEM,
90 .regshift = 1,
91 .uartclk = QUART_CLK,
92 }, {
93 .flags = 0
94 }
95};
96
97static struct platform_device zoom2_debugboard_serial_device = {
98 .name = "serial8250",
99 .id = 3,
100 .dev = {
101 .platform_data = serial_platform_data,
102 },
103};
104
105static inline void __init zoom2_init_quaduart(void)
106{
107 int quart_cs;
108 unsigned long cs_mem_base;
109 int quart_gpio = 0;
110
111 quart_cs = ZOOM2_QUADUART_CS;
112
113 if (gpmc_cs_request(quart_cs, SZ_1M, &cs_mem_base) < 0) {
114 printk(KERN_ERR "Failed to request GPMC mem"
115 "for Quad UART(TL16CP754C)\n");
116 return;
117 }
118
119 quart_gpio = ZOOM2_QUADUART_GPIO;
120
121 if (gpio_request(quart_gpio, "TL16CP754C GPIO") < 0) {
122 printk(KERN_ERR "Failed to request GPIO%d for TL16CP754C\n",
123 quart_gpio);
124 return;
125 }
126 gpio_direction_input(quart_gpio);
127}
128
129static inline int omap_zoom2_debugboard_detect(void)
130{
131 int debug_board_detect = 0;
132 int ret = 1;
133
134 debug_board_detect = ZOOM2_SMSC911X_GPIO;
135
136 if (gpio_request(debug_board_detect, "Zoom2 debug board detect") < 0) {
137 printk(KERN_ERR "Failed to request GPIO%d for Zoom2 debug"
138 "board detect\n", debug_board_detect);
139 return 0;
140 }
141 gpio_direction_input(debug_board_detect);
142
143 if (!gpio_get_value(debug_board_detect)) {
144 ret = 0;
145 }
146 gpio_free(debug_board_detect);
147 return ret;
148}
149
150static struct platform_device *zoom2_devices[] __initdata = {
151 &zoom2_smsc911x_device,
152 &zoom2_debugboard_serial_device,
153};
154
155int __init omap_zoom2_debugboard_init(void)
156{
157 if (!omap_zoom2_debugboard_detect())
158 return 0;
159
160 zoom2_init_smsc911x();
161 zoom2_init_quaduart();
162 return platform_add_devices(zoom2_devices, ARRAY_SIZE(zoom2_devices));
163}
164
