Merge branch 'depends/rmk/devel-stable' into next/cleanup
[linux-3.10.git] / arch / arm / mach-omap2 / board-am3517evm.c
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/clk.h>
22 #include <linux/platform_device.h>
23 #include <linux/gpio.h>
24 #include <linux/i2c/pca953x.h>
25 #include <linux/can/platform/ti_hecc.h>
26 #include <linux/davinci_emac.h>
27
28 #include <mach/hardware.h>
29 #include <mach/am35xx.h>
30 #include <asm/mach-types.h>
31 #include <asm/mach/arch.h>
32 #include <asm/mach/map.h>
33
34 #include <plat/board.h>
35 #include <plat/common.h>
36 #include <plat/usb.h>
37 #include <video/omapdss.h>
38 #include <video/omap-panel-generic-dpi.h>
39
40 #include "mux.h"
41 #include "control.h"
42
43 #define AM35XX_EVM_MDIO_FREQUENCY       (1000000)
44
45 static struct mdio_platform_data am3517_evm_mdio_pdata = {
46         .bus_freq       = AM35XX_EVM_MDIO_FREQUENCY,
47 };
48
49 static struct resource am3517_mdio_resources[] = {
50         {
51                 .start  = AM35XX_IPSS_EMAC_BASE + AM35XX_EMAC_MDIO_OFFSET,
52                 .end    = AM35XX_IPSS_EMAC_BASE + AM35XX_EMAC_MDIO_OFFSET +
53                           SZ_4K - 1,
54                 .flags  = IORESOURCE_MEM,
55         },
56 };
57
58 static struct platform_device am3517_mdio_device = {
59         .name           = "davinci_mdio",
60         .id             = 0,
61         .num_resources  = ARRAY_SIZE(am3517_mdio_resources),
62         .resource       = am3517_mdio_resources,
63         .dev.platform_data = &am3517_evm_mdio_pdata,
64 };
65
66 static struct emac_platform_data am3517_evm_emac_pdata = {
67         .rmii_en        = 1,
68 };
69
70 static struct resource am3517_emac_resources[] = {
71         {
72                 .start  = AM35XX_IPSS_EMAC_BASE,
73                 .end    = AM35XX_IPSS_EMAC_BASE + 0x2FFFF,
74                 .flags  = IORESOURCE_MEM,
75         },
76         {
77                 .start  = INT_35XX_EMAC_C0_RXTHRESH_IRQ,
78                 .end    = INT_35XX_EMAC_C0_RXTHRESH_IRQ,
79                 .flags  = IORESOURCE_IRQ,
80         },
81         {
82                 .start  = INT_35XX_EMAC_C0_RX_PULSE_IRQ,
83                 .end    = INT_35XX_EMAC_C0_RX_PULSE_IRQ,
84                 .flags  = IORESOURCE_IRQ,
85         },
86         {
87                 .start  = INT_35XX_EMAC_C0_TX_PULSE_IRQ,
88                 .end    = INT_35XX_EMAC_C0_TX_PULSE_IRQ,
89                 .flags  = IORESOURCE_IRQ,
90         },
91         {
92                 .start  = INT_35XX_EMAC_C0_MISC_PULSE_IRQ,
93                 .end    = INT_35XX_EMAC_C0_MISC_PULSE_IRQ,
94                 .flags  = IORESOURCE_IRQ,
95         },
96 };
97
98 static struct platform_device am3517_emac_device = {
99         .name           = "davinci_emac",
100         .id             = -1,
101         .num_resources  = ARRAY_SIZE(am3517_emac_resources),
102         .resource       = am3517_emac_resources,
103 };
104
105 static void am3517_enable_ethernet_int(void)
106 {
107         u32 regval;
108
109         regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
110         regval = (regval | AM35XX_CPGMAC_C0_RX_PULSE_CLR |
111                 AM35XX_CPGMAC_C0_TX_PULSE_CLR |
112                 AM35XX_CPGMAC_C0_MISC_PULSE_CLR |
113                 AM35XX_CPGMAC_C0_RX_THRESH_CLR);
114         omap_ctrl_writel(regval, AM35XX_CONTROL_LVL_INTR_CLEAR);
115         regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
116 }
117
118 static void am3517_disable_ethernet_int(void)
119 {
120         u32 regval;
121
122         regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
123         regval = (regval | AM35XX_CPGMAC_C0_RX_PULSE_CLR |
124                 AM35XX_CPGMAC_C0_TX_PULSE_CLR);
125         omap_ctrl_writel(regval, AM35XX_CONTROL_LVL_INTR_CLEAR);
126         regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
127 }
128
129 static void am3517_evm_ethernet_init(struct emac_platform_data *pdata)
130 {
131         unsigned int regval;
132
133         pdata->ctrl_reg_offset          = AM35XX_EMAC_CNTRL_OFFSET;
134         pdata->ctrl_mod_reg_offset      = AM35XX_EMAC_CNTRL_MOD_OFFSET;
135         pdata->ctrl_ram_offset          = AM35XX_EMAC_CNTRL_RAM_OFFSET;
136         pdata->ctrl_ram_size            = AM35XX_EMAC_CNTRL_RAM_SIZE;
137         pdata->version                  = EMAC_VERSION_2;
138         pdata->hw_ram_addr              = AM35XX_EMAC_HW_RAM_ADDR;
139         pdata->interrupt_enable         = am3517_enable_ethernet_int;
140         pdata->interrupt_disable        = am3517_disable_ethernet_int;
141         am3517_emac_device.dev.platform_data    = pdata;
142         platform_device_register(&am3517_emac_device);
143         platform_device_register(&am3517_mdio_device);
144         clk_add_alias(NULL, dev_name(&am3517_mdio_device.dev),
145                       NULL, &am3517_emac_device.dev);
146
147         regval = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
148         regval = regval & (~(AM35XX_CPGMACSS_SW_RST));
149         omap_ctrl_writel(regval, AM35XX_CONTROL_IP_SW_RESET);
150         regval = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
151
152         return ;
153 }
154
155
156
157 #define LCD_PANEL_PWR           176
158 #define LCD_PANEL_BKLIGHT_PWR   182
159 #define LCD_PANEL_PWM           181
160
161 static struct i2c_board_info __initdata am3517evm_i2c1_boardinfo[] = {
162         {
163                 I2C_BOARD_INFO("s35390a", 0x30),
164         },
165 };
166
167 /*
168  * RTC - S35390A
169  */
170 #define GPIO_RTCS35390A_IRQ     55
171
172 static void __init am3517_evm_rtc_init(void)
173 {
174         int r;
175
176         omap_mux_init_gpio(GPIO_RTCS35390A_IRQ, OMAP_PIN_INPUT_PULLUP);
177
178         r = gpio_request_one(GPIO_RTCS35390A_IRQ, GPIOF_IN, "rtcs35390a-irq");
179         if (r < 0) {
180                 printk(KERN_WARNING "failed to request GPIO#%d\n",
181                                 GPIO_RTCS35390A_IRQ);
182                 return;
183         }
184
185         am3517evm_i2c1_boardinfo[0].irq = gpio_to_irq(GPIO_RTCS35390A_IRQ);
186 }
187
188 /*
189  * I2C GPIO Expander - TCA6416
190  */
191
192 /* Mounted on Base-Board */
193 static struct pca953x_platform_data am3517evm_gpio_expander_info_0 = {
194         .gpio_base      = OMAP_MAX_GPIO_LINES,
195 };
196 static struct i2c_board_info __initdata am3517evm_i2c2_boardinfo[] = {
197         {
198                 I2C_BOARD_INFO("tlv320aic23", 0x1A),
199         },
200         {
201                 I2C_BOARD_INFO("tca6416", 0x21),
202                 .platform_data = &am3517evm_gpio_expander_info_0,
203         },
204 };
205
206 /* Mounted on UI Card */
207 static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_1 = {
208         .gpio_base      = OMAP_MAX_GPIO_LINES + 16,
209 };
210 static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_2 = {
211         .gpio_base      = OMAP_MAX_GPIO_LINES + 32,
212 };
213 static struct i2c_board_info __initdata am3517evm_i2c3_boardinfo[] = {
214         {
215                 I2C_BOARD_INFO("tca6416", 0x20),
216                 .platform_data = &am3517evm_ui_gpio_expander_info_1,
217         },
218         {
219                 I2C_BOARD_INFO("tca6416", 0x21),
220                 .platform_data = &am3517evm_ui_gpio_expander_info_2,
221         },
222 };
223
224 static int __init am3517_evm_i2c_init(void)
225 {
226         omap_register_i2c_bus(1, 400, NULL, 0);
227         omap_register_i2c_bus(2, 400, am3517evm_i2c2_boardinfo,
228                         ARRAY_SIZE(am3517evm_i2c2_boardinfo));
229         omap_register_i2c_bus(3, 400, am3517evm_i2c3_boardinfo,
230                         ARRAY_SIZE(am3517evm_i2c3_boardinfo));
231
232         return 0;
233 }
234
235 static int lcd_enabled;
236 static int dvi_enabled;
237
238 #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
239                 defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
240 static struct gpio am3517_evm_dss_gpios[] __initdata = {
241         /* GPIO 182 = LCD Backlight Power */
242         { LCD_PANEL_BKLIGHT_PWR, GPIOF_OUT_INIT_HIGH, "lcd_backlight_pwr" },
243         /* GPIO 181 = LCD Panel PWM */
244         { LCD_PANEL_PWM,         GPIOF_OUT_INIT_HIGH, "lcd bl enable"     },
245         /* GPIO 176 = LCD Panel Power enable pin */
246         { LCD_PANEL_PWR,         GPIOF_OUT_INIT_HIGH, "dvi enable"        },
247 };
248
249 static void __init am3517_evm_display_init(void)
250 {
251         int r;
252
253         omap_mux_init_gpio(LCD_PANEL_PWR, OMAP_PIN_INPUT_PULLUP);
254         omap_mux_init_gpio(LCD_PANEL_BKLIGHT_PWR, OMAP_PIN_INPUT_PULLDOWN);
255         omap_mux_init_gpio(LCD_PANEL_PWM, OMAP_PIN_INPUT_PULLDOWN);
256
257         r = gpio_request_array(am3517_evm_dss_gpios,
258                                ARRAY_SIZE(am3517_evm_dss_gpios));
259         if (r) {
260                 printk(KERN_ERR "failed to get DSS panel control GPIOs\n");
261                 return;
262         }
263
264         printk(KERN_INFO "Display initialized successfully\n");
265 }
266 #else
267 static void __init am3517_evm_display_init(void) {}
268 #endif
269
270 static int am3517_evm_panel_enable_lcd(struct omap_dss_device *dssdev)
271 {
272         if (dvi_enabled) {
273                 printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
274                 return -EINVAL;
275         }
276         gpio_set_value(LCD_PANEL_PWR, 1);
277         lcd_enabled = 1;
278
279         return 0;
280 }
281
282 static void am3517_evm_panel_disable_lcd(struct omap_dss_device *dssdev)
283 {
284         gpio_set_value(LCD_PANEL_PWR, 0);
285         lcd_enabled = 0;
286 }
287
288 static struct panel_generic_dpi_data lcd_panel = {
289         .name                   = "sharp_lq",
290         .platform_enable        = am3517_evm_panel_enable_lcd,
291         .platform_disable       = am3517_evm_panel_disable_lcd,
292 };
293
294 static struct omap_dss_device am3517_evm_lcd_device = {
295         .type                   = OMAP_DISPLAY_TYPE_DPI,
296         .name                   = "lcd",
297         .driver_name            = "generic_dpi_panel",
298         .data                   = &lcd_panel,
299         .phy.dpi.data_lines     = 16,
300 };
301
302 static int am3517_evm_panel_enable_tv(struct omap_dss_device *dssdev)
303 {
304         return 0;
305 }
306
307 static void am3517_evm_panel_disable_tv(struct omap_dss_device *dssdev)
308 {
309 }
310
311 static struct omap_dss_device am3517_evm_tv_device = {
312         .type                   = OMAP_DISPLAY_TYPE_VENC,
313         .name                   = "tv",
314         .driver_name            = "venc",
315         .phy.venc.type          = OMAP_DSS_VENC_TYPE_SVIDEO,
316         .platform_enable        = am3517_evm_panel_enable_tv,
317         .platform_disable       = am3517_evm_panel_disable_tv,
318 };
319
320 static int am3517_evm_panel_enable_dvi(struct omap_dss_device *dssdev)
321 {
322         if (lcd_enabled) {
323                 printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");
324                 return -EINVAL;
325         }
326         dvi_enabled = 1;
327
328         return 0;
329 }
330
331 static void am3517_evm_panel_disable_dvi(struct omap_dss_device *dssdev)
332 {
333         dvi_enabled = 0;
334 }
335
336 static struct panel_generic_dpi_data dvi_panel = {
337         .name                   = "generic",
338         .platform_enable        = am3517_evm_panel_enable_dvi,
339         .platform_disable       = am3517_evm_panel_disable_dvi,
340 };
341
342 static struct omap_dss_device am3517_evm_dvi_device = {
343         .type                   = OMAP_DISPLAY_TYPE_DPI,
344         .name                   = "dvi",
345         .driver_name            = "generic_dpi_panel",
346         .data                   = &dvi_panel,
347         .phy.dpi.data_lines     = 24,
348 };
349
350 static struct omap_dss_device *am3517_evm_dss_devices[] = {
351         &am3517_evm_lcd_device,
352         &am3517_evm_tv_device,
353         &am3517_evm_dvi_device,
354 };
355
356 static struct omap_dss_board_info am3517_evm_dss_data = {
357         .num_devices    = ARRAY_SIZE(am3517_evm_dss_devices),
358         .devices        = am3517_evm_dss_devices,
359         .default_device = &am3517_evm_lcd_device,
360 };
361
362 /*
363  * Board initialization
364  */
365
366 static struct omap_musb_board_data musb_board_data = {
367         .interface_type         = MUSB_INTERFACE_ULPI,
368         .mode                   = MUSB_OTG,
369         .power                  = 500,
370         .set_phy_power          = am35x_musb_phy_power,
371         .clear_irq              = am35x_musb_clear_irq,
372         .set_mode               = am35x_set_mode,
373         .reset                  = am35x_musb_reset,
374 };
375
376 static __init void am3517_evm_musb_init(void)
377 {
378         u32 devconf2;
379
380         /*
381          * Set up USB clock/mode in the DEVCONF2 register.
382          */
383         devconf2 = omap_ctrl_readl(AM35XX_CONTROL_DEVCONF2);
384
385         /* USB2.0 PHY reference clock is 13 MHz */
386         devconf2 &= ~(CONF2_REFFREQ | CONF2_OTGMODE | CONF2_PHY_GPIOMODE);
387         devconf2 |=  CONF2_REFFREQ_13MHZ | CONF2_SESENDEN | CONF2_VBDTCTEN
388                         | CONF2_DATPOL;
389
390         omap_ctrl_writel(devconf2, AM35XX_CONTROL_DEVCONF2);
391
392         usb_musb_init(&musb_board_data);
393 }
394
395 static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
396         .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
397 #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
398                 defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
399         .port_mode[1] = OMAP_USBHS_PORT_MODE_UNUSED,
400 #else
401         .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
402 #endif
403         .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
404
405         .phy_reset  = true,
406         .reset_gpio_port[0]  = 57,
407         .reset_gpio_port[1]  = -EINVAL,
408         .reset_gpio_port[2]  = -EINVAL
409 };
410
411 #ifdef CONFIG_OMAP_MUX
412 static struct omap_board_mux board_mux[] __initdata = {
413         /* USB OTG DRVVBUS offset = 0x212 */
414         OMAP3_MUX(SAD2D_MCAD23, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN),
415         { .reg_offset = OMAP_MUX_TERMINATOR },
416 };
417 #endif
418
419
420 static struct resource am3517_hecc_resources[] = {
421         {
422                 .start  = AM35XX_IPSS_HECC_BASE,
423                 .end    = AM35XX_IPSS_HECC_BASE + 0x3FFF,
424                 .flags  = IORESOURCE_MEM,
425         },
426         {
427                 .start  = INT_35XX_HECC0_IRQ,
428                 .end    = INT_35XX_HECC0_IRQ,
429                 .flags  = IORESOURCE_IRQ,
430         },
431 };
432
433 static struct platform_device am3517_hecc_device = {
434         .name           = "ti_hecc",
435         .id             = -1,
436         .num_resources  = ARRAY_SIZE(am3517_hecc_resources),
437         .resource       = am3517_hecc_resources,
438 };
439
440 static struct ti_hecc_platform_data am3517_evm_hecc_pdata = {
441         .scc_hecc_offset        = AM35XX_HECC_SCC_HECC_OFFSET,
442         .scc_ram_offset         = AM35XX_HECC_SCC_RAM_OFFSET,
443         .hecc_ram_offset        = AM35XX_HECC_RAM_OFFSET,
444         .mbx_offset             = AM35XX_HECC_MBOX_OFFSET,
445         .int_line               = AM35XX_HECC_INT_LINE,
446         .version                = AM35XX_HECC_VERSION,
447 };
448
449 static void am3517_evm_hecc_init(struct ti_hecc_platform_data *pdata)
450 {
451         am3517_hecc_device.dev.platform_data = pdata;
452         platform_device_register(&am3517_hecc_device);
453 }
454
455 static struct omap_board_config_kernel am3517_evm_config[] __initdata = {
456 };
457
458 static void __init am3517_evm_init(void)
459 {
460         omap_board_config = am3517_evm_config;
461         omap_board_config_size = ARRAY_SIZE(am3517_evm_config);
462         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
463
464         am3517_evm_i2c_init();
465         omap_display_init(&am3517_evm_dss_data);
466         omap_serial_init();
467         omap_sdrc_init(NULL, NULL);
468
469         /* Configure GPIO for EHCI port */
470         omap_mux_init_gpio(57, OMAP_PIN_OUTPUT);
471         usbhs_init(&usbhs_bdata);
472         am3517_evm_hecc_init(&am3517_evm_hecc_pdata);
473         /* DSS */
474         am3517_evm_display_init();
475
476         /* RTC - S35390A */
477         am3517_evm_rtc_init();
478
479         i2c_register_board_info(1, am3517evm_i2c1_boardinfo,
480                                 ARRAY_SIZE(am3517evm_i2c1_boardinfo));
481         /*Ethernet*/
482         am3517_evm_ethernet_init(&am3517_evm_emac_pdata);
483
484         /* MUSB */
485         am3517_evm_musb_init();
486 }
487
488 MACHINE_START(OMAP3517EVM, "OMAP3517/AM3517 EVM")
489         .atag_offset    = 0x100,
490         .reserve        = omap_reserve,
491         .map_io         = omap3_map_io,
492         .init_early     = am35xx_init_early,
493         .init_irq       = omap3_init_irq,
494         .init_machine   = am3517_evm_init,
495         .timer          = &omap3_timer,
496 MACHINE_END