2 * Copyright (C) 2009 Texas Instruments Inc.
3 * Mikkel Christensen <mlc@ti.com>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
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>
17 #include <plat/gpmc.h>
18 #include <plat/gpmc-smsc911x.h>
20 #include <mach/board-zoom.h>
22 #define ZOOM_SMSC911X_CS 7
23 #define ZOOM_SMSC911X_GPIO 158
24 #define ZOOM_QUADUART_CS 3
25 #define ZOOM_QUADUART_GPIO 102
26 #define ZOOM_QUADUART_RST_GPIO 152
27 #define QUART_CLK 1843200
28 #define DEBUG_BASE 0x08000000
29 #define ZOOM_ETHR_START DEBUG_BASE
31 static struct omap_smsc911x_platform_data zoom_smsc911x_cfg = {
32 .cs = ZOOM_SMSC911X_CS,
33 .gpio_irq = ZOOM_SMSC911X_GPIO,
34 .gpio_reset = -EINVAL,
35 .flags = SMSC911X_USE_32BIT,
38 static inline void __init zoom_init_smsc911x(void)
40 gpmc_smsc911x_init(&zoom_smsc911x_cfg);
43 static struct plat_serial8250_port serial_platform_data[] = {
45 .mapbase = ZOOM_UART_BASE,
46 .flags = UPF_BOOT_AUTOCONF|UPF_IOREMAP|UPF_SHARE_IRQ,
47 .irqflags = IRQF_SHARED | IRQF_TRIGGER_RISING,
56 static struct platform_device zoom_debugboard_serial_device = {
58 .id = PLAT8250_DEV_PLATFORM,
60 .platform_data = serial_platform_data,
64 static inline void __init zoom_init_quaduart(void)
67 unsigned long cs_mem_base;
70 if (gpio_request_one(ZOOM_QUADUART_RST_GPIO,
72 "TL16CP754C GPIO") < 0) {
73 pr_err("Failed to request GPIO%d for TL16CP754C\n",
74 ZOOM_QUADUART_RST_GPIO);
78 quart_cs = ZOOM_QUADUART_CS;
80 if (gpmc_cs_request(quart_cs, SZ_1M, &cs_mem_base) < 0) {
81 printk(KERN_ERR "Failed to request GPMC mem"
82 "for Quad UART(TL16CP754C)\n");
86 quart_gpio = ZOOM_QUADUART_GPIO;
88 if (gpio_request_one(quart_gpio, GPIOF_IN, "TL16CP754C GPIO") < 0)
89 printk(KERN_ERR "Failed to request GPIO%d for TL16CP754C\n",
92 serial_platform_data[0].irq = gpio_to_irq(102);
95 static inline int omap_zoom_debugboard_detect(void)
97 int debug_board_detect = 0;
100 debug_board_detect = ZOOM_SMSC911X_GPIO;
102 if (gpio_request_one(debug_board_detect, GPIOF_IN,
103 "Zoom debug board detect") < 0) {
104 printk(KERN_ERR "Failed to request GPIO%d for Zoom debug"
105 "board detect\n", debug_board_detect);
109 if (!gpio_get_value(debug_board_detect)) {
112 gpio_free(debug_board_detect);
116 static struct platform_device *zoom_devices[] __initdata = {
117 &zoom_debugboard_serial_device,
120 int __init zoom_debugboard_init(void)
122 if (!omap_zoom_debugboard_detect())
125 zoom_init_smsc911x();
126 zoom_init_quaduart();
127 return platform_add_devices(zoom_devices, ARRAY_SIZE(zoom_devices));