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c625327e RL |
1 | /* |
2 | * linux/arch/arm/mach-omap2/board-am3517evm.c | |
3 | * | |
4 | * Copyright (C) 2009 Texas Instruments Incorporated | |
5 | * Author: Ranjith Lohithakshan <ranjithl@ti.com> | |
6 | * | |
7 | * Based on mach-omap2/board-omap3evm.c | |
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 version 2. | |
12 | * | |
13 | * This program is distributed "as is" WITHOUT ANY WARRANTY of any kind, | |
14 | * whether express or implied; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | * General Public License for more details. | |
17 | */ | |
18 | ||
19 | #include <linux/kernel.h> | |
20 | #include <linux/init.h> | |
21 | #include <linux/platform_device.h> | |
22 | #include <linux/gpio.h> | |
5d4292a5 | 23 | #include <linux/i2c/pca953x.h> |
c625327e RL |
24 | |
25 | #include <mach/hardware.h> | |
e3d4d0a2 | 26 | #include <mach/am35xx.h> |
c625327e RL |
27 | #include <asm/mach-types.h> |
28 | #include <asm/mach/arch.h> | |
29 | #include <asm/mach/map.h> | |
30 | ||
31 | #include <plat/board.h> | |
32 | #include <plat/common.h> | |
33 | #include <plat/usb.h> | |
c3d33329 | 34 | #include <plat/display.h> |
c625327e | 35 | |
ca5742bd TL |
36 | #include "mux.h" |
37 | ||
c3d33329 VH |
38 | #define LCD_PANEL_PWR 176 |
39 | #define LCD_PANEL_BKLIGHT_PWR 182 | |
40 | #define LCD_PANEL_PWM 181 | |
41 | ||
f2afbbb8 VH |
42 | static struct i2c_board_info __initdata am3517evm_i2c_boardinfo[] = { |
43 | { | |
44 | I2C_BOARD_INFO("s35390a", 0x30), | |
45 | .type = "s35390a", | |
46 | }, | |
47 | }; | |
48 | ||
49 | /* | |
50 | * RTC - S35390A | |
51 | */ | |
52 | #define GPIO_RTCS35390A_IRQ 55 | |
53 | ||
54 | static void __init am3517_evm_rtc_init(void) | |
55 | { | |
56 | int r; | |
57 | ||
58 | omap_mux_init_gpio(GPIO_RTCS35390A_IRQ, OMAP_PIN_INPUT_PULLUP); | |
59 | r = gpio_request(GPIO_RTCS35390A_IRQ, "rtcs35390a-irq"); | |
60 | if (r < 0) { | |
61 | printk(KERN_WARNING "failed to request GPIO#%d\n", | |
62 | GPIO_RTCS35390A_IRQ); | |
63 | return; | |
64 | } | |
65 | r = gpio_direction_input(GPIO_RTCS35390A_IRQ); | |
66 | if (r < 0) { | |
67 | printk(KERN_WARNING "GPIO#%d cannot be configured as input\n", | |
68 | GPIO_RTCS35390A_IRQ); | |
69 | gpio_free(GPIO_RTCS35390A_IRQ); | |
70 | return; | |
71 | } | |
72 | am3517evm_i2c_boardinfo[0].irq = gpio_to_irq(GPIO_RTCS35390A_IRQ); | |
73 | } | |
74 | ||
5d4292a5 VH |
75 | /* |
76 | * I2C GPIO Expander - TCA6416 | |
77 | */ | |
78 | ||
79 | /* Mounted on Base-Board */ | |
80 | static struct pca953x_platform_data am3517evm_gpio_expander_info_0 = { | |
81 | .gpio_base = OMAP_MAX_GPIO_LINES, | |
82 | }; | |
7b97f3ed | 83 | static struct i2c_board_info __initdata am3517evm_tca6416_info_0[] = { |
5d4292a5 VH |
84 | { |
85 | I2C_BOARD_INFO("tca6416", 0x21), | |
86 | .platform_data = &am3517evm_gpio_expander_info_0, | |
87 | }, | |
88 | }; | |
89 | ||
90 | /* Mounted on UI Card */ | |
91 | static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_1 = { | |
92 | .gpio_base = OMAP_MAX_GPIO_LINES + 16, | |
93 | }; | |
94 | static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_2 = { | |
95 | .gpio_base = OMAP_MAX_GPIO_LINES + 32, | |
96 | }; | |
7b97f3ed | 97 | static struct i2c_board_info __initdata am3517evm_ui_tca6416_info[] = { |
5d4292a5 VH |
98 | { |
99 | I2C_BOARD_INFO("tca6416", 0x20), | |
100 | .platform_data = &am3517evm_ui_gpio_expander_info_1, | |
101 | }, | |
102 | { | |
103 | I2C_BOARD_INFO("tca6416", 0x21), | |
104 | .platform_data = &am3517evm_ui_gpio_expander_info_2, | |
105 | }, | |
106 | }; | |
107 | ||
1f738dc3 VH |
108 | static int __init am3517_evm_i2c_init(void) |
109 | { | |
110 | omap_register_i2c_bus(1, 400, NULL, 0); | |
7b97f3ed S |
111 | omap_register_i2c_bus(2, 400, am3517evm_tca6416_info_0, |
112 | ARRAY_SIZE(am3517evm_tca6416_info_0)); | |
113 | omap_register_i2c_bus(3, 400, am3517evm_ui_tca6416_info, | |
114 | ARRAY_SIZE(am3517evm_ui_tca6416_info)); | |
1f738dc3 VH |
115 | |
116 | return 0; | |
117 | } | |
118 | ||
c3d33329 VH |
119 | static int lcd_enabled; |
120 | static int dvi_enabled; | |
121 | ||
122 | static void __init am3517_evm_display_init(void) | |
123 | { | |
124 | int r; | |
125 | ||
126 | omap_mux_init_gpio(LCD_PANEL_PWR, OMAP_PIN_INPUT_PULLUP); | |
127 | omap_mux_init_gpio(LCD_PANEL_BKLIGHT_PWR, OMAP_PIN_INPUT_PULLDOWN); | |
128 | omap_mux_init_gpio(LCD_PANEL_PWM, OMAP_PIN_INPUT_PULLDOWN); | |
129 | /* | |
130 | * Enable GPIO 182 = LCD Backlight Power | |
131 | */ | |
132 | r = gpio_request(LCD_PANEL_BKLIGHT_PWR, "lcd_backlight_pwr"); | |
133 | if (r) { | |
134 | printk(KERN_ERR "failed to get lcd_backlight_pwr\n"); | |
135 | return; | |
136 | } | |
137 | gpio_direction_output(LCD_PANEL_BKLIGHT_PWR, 1); | |
138 | /* | |
139 | * Enable GPIO 181 = LCD Panel PWM | |
140 | */ | |
141 | r = gpio_request(LCD_PANEL_PWM, "lcd_pwm"); | |
142 | if (r) { | |
143 | printk(KERN_ERR "failed to get lcd_pwm\n"); | |
144 | goto err_1; | |
145 | } | |
146 | gpio_direction_output(LCD_PANEL_PWM, 1); | |
147 | /* | |
148 | * Enable GPIO 176 = LCD Panel Power enable pin | |
149 | */ | |
150 | r = gpio_request(LCD_PANEL_PWR, "lcd_panel_pwr"); | |
151 | if (r) { | |
152 | printk(KERN_ERR "failed to get lcd_panel_pwr\n"); | |
153 | goto err_2; | |
154 | } | |
155 | gpio_direction_output(LCD_PANEL_PWR, 1); | |
156 | ||
157 | printk(KERN_INFO "Display initialized successfully\n"); | |
158 | return; | |
159 | ||
160 | err_2: | |
161 | gpio_free(LCD_PANEL_PWM); | |
162 | err_1: | |
163 | gpio_free(LCD_PANEL_BKLIGHT_PWR); | |
164 | } | |
165 | ||
166 | static int am3517_evm_panel_enable_lcd(struct omap_dss_device *dssdev) | |
167 | { | |
168 | if (dvi_enabled) { | |
169 | printk(KERN_ERR "cannot enable LCD, DVI is enabled\n"); | |
170 | return -EINVAL; | |
171 | } | |
172 | gpio_set_value(LCD_PANEL_PWR, 1); | |
173 | lcd_enabled = 1; | |
174 | ||
175 | return 0; | |
176 | } | |
177 | ||
178 | static void am3517_evm_panel_disable_lcd(struct omap_dss_device *dssdev) | |
179 | { | |
180 | gpio_set_value(LCD_PANEL_PWR, 0); | |
181 | lcd_enabled = 0; | |
182 | } | |
183 | ||
184 | static struct omap_dss_device am3517_evm_lcd_device = { | |
185 | .type = OMAP_DISPLAY_TYPE_DPI, | |
186 | .name = "lcd", | |
187 | .driver_name = "sharp_lq_panel", | |
188 | .phy.dpi.data_lines = 16, | |
189 | .platform_enable = am3517_evm_panel_enable_lcd, | |
190 | .platform_disable = am3517_evm_panel_disable_lcd, | |
191 | }; | |
192 | ||
193 | static int am3517_evm_panel_enable_tv(struct omap_dss_device *dssdev) | |
194 | { | |
195 | return 0; | |
196 | } | |
197 | ||
198 | static void am3517_evm_panel_disable_tv(struct omap_dss_device *dssdev) | |
199 | { | |
200 | } | |
201 | ||
202 | static struct omap_dss_device am3517_evm_tv_device = { | |
203 | .type = OMAP_DISPLAY_TYPE_VENC, | |
204 | .name = "tv", | |
205 | .driver_name = "venc", | |
206 | .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO, | |
207 | .platform_enable = am3517_evm_panel_enable_tv, | |
208 | .platform_disable = am3517_evm_panel_disable_tv, | |
209 | }; | |
210 | ||
211 | static int am3517_evm_panel_enable_dvi(struct omap_dss_device *dssdev) | |
212 | { | |
213 | if (lcd_enabled) { | |
214 | printk(KERN_ERR "cannot enable DVI, LCD is enabled\n"); | |
215 | return -EINVAL; | |
216 | } | |
217 | dvi_enabled = 1; | |
218 | ||
219 | return 0; | |
220 | } | |
221 | ||
222 | static void am3517_evm_panel_disable_dvi(struct omap_dss_device *dssdev) | |
223 | { | |
224 | dvi_enabled = 0; | |
225 | } | |
226 | ||
227 | static struct omap_dss_device am3517_evm_dvi_device = { | |
228 | .type = OMAP_DISPLAY_TYPE_DPI, | |
229 | .name = "dvi", | |
230 | .driver_name = "generic_panel", | |
231 | .phy.dpi.data_lines = 24, | |
232 | .platform_enable = am3517_evm_panel_enable_dvi, | |
233 | .platform_disable = am3517_evm_panel_disable_dvi, | |
234 | }; | |
235 | ||
236 | static struct omap_dss_device *am3517_evm_dss_devices[] = { | |
237 | &am3517_evm_lcd_device, | |
238 | &am3517_evm_tv_device, | |
239 | &am3517_evm_dvi_device, | |
240 | }; | |
241 | ||
242 | static struct omap_dss_board_info am3517_evm_dss_data = { | |
243 | .num_devices = ARRAY_SIZE(am3517_evm_dss_devices), | |
244 | .devices = am3517_evm_dss_devices, | |
245 | .default_device = &am3517_evm_lcd_device, | |
246 | }; | |
247 | ||
248 | struct platform_device am3517_evm_dss_device = { | |
249 | .name = "omapdss", | |
250 | .id = -1, | |
251 | .dev = { | |
252 | .platform_data = &am3517_evm_dss_data, | |
253 | }, | |
254 | }; | |
255 | ||
c625327e RL |
256 | /* |
257 | * Board initialization | |
258 | */ | |
259 | static struct omap_board_config_kernel am3517_evm_config[] __initdata = { | |
260 | }; | |
261 | ||
262 | static struct platform_device *am3517_evm_devices[] __initdata = { | |
c3d33329 | 263 | &am3517_evm_dss_device, |
c625327e RL |
264 | }; |
265 | ||
266 | static void __init am3517_evm_init_irq(void) | |
267 | { | |
268 | omap_board_config = am3517_evm_config; | |
269 | omap_board_config_size = ARRAY_SIZE(am3517_evm_config); | |
270 | ||
271 | omap2_init_common_hw(NULL, NULL); | |
272 | omap_init_irq(); | |
273 | omap_gpio_init(); | |
274 | } | |
275 | ||
6f69a181 | 276 | static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = { |
c625327e RL |
277 | .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY, |
278 | .port_mode[1] = EHCI_HCD_OMAP_MODE_PHY, | |
279 | .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN, | |
280 | ||
281 | .phy_reset = true, | |
282 | .reset_gpio_port[0] = 57, | |
283 | .reset_gpio_port[1] = -EINVAL, | |
284 | .reset_gpio_port[2] = -EINVAL | |
285 | }; | |
286 | ||
ca5742bd TL |
287 | #ifdef CONFIG_OMAP_MUX |
288 | static struct omap_board_mux board_mux[] __initdata = { | |
289 | { .reg_offset = OMAP_MUX_TERMINATOR }, | |
290 | }; | |
291 | #else | |
292 | #define board_mux NULL | |
293 | #endif | |
294 | ||
c625327e RL |
295 | static void __init am3517_evm_init(void) |
296 | { | |
1f738dc3 VH |
297 | am3517_evm_i2c_init(); |
298 | ||
ca5742bd | 299 | omap3_mux_init(board_mux, OMAP_PACKAGE_CBB); |
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300 | platform_add_devices(am3517_evm_devices, |
301 | ARRAY_SIZE(am3517_evm_devices)); | |
302 | ||
303 | omap_serial_init(); | |
fec3eebd AKG |
304 | |
305 | /* Configure GPIO for EHCI port */ | |
306 | omap_mux_init_gpio(57, OMAP_PIN_OUTPUT); | |
c625327e | 307 | usb_ehci_init(&ehci_pdata); |
c3d33329 VH |
308 | /* DSS */ |
309 | am3517_evm_display_init(); | |
f2afbbb8 VH |
310 | |
311 | /* RTC - S35390A */ | |
312 | am3517_evm_rtc_init(); | |
313 | ||
314 | i2c_register_board_info(1, am3517evm_i2c_boardinfo, | |
315 | ARRAY_SIZE(am3517evm_i2c_boardinfo)); | |
c625327e RL |
316 | } |
317 | ||
318 | static void __init am3517_evm_map_io(void) | |
319 | { | |
320 | omap2_set_globals_343x(); | |
6fbd55d0 | 321 | omap34xx_map_common_io(); |
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322 | } |
323 | ||
324 | MACHINE_START(OMAP3517EVM, "OMAP3517/AM3517 EVM") | |
325 | .phys_io = 0x48000000, | |
326 | .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc, | |
327 | .boot_params = 0x80000100, | |
328 | .map_io = am3517_evm_map_io, | |
329 | .init_irq = am3517_evm_init_irq, | |
330 | .init_machine = am3517_evm_init, | |
331 | .timer = &omap_timer, | |
332 | MACHINE_END |