Merge branch 'davinci-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
[~shefty/rdma-dev.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/control.h>
37 #include <plat/usb.h>
38 #include <plat/display.h>
39
40 #include "mux.h"
41
42 #define AM35XX_EVM_MDIO_FREQUENCY       (1000000)
43
44 static struct mdio_platform_data am3517_evm_mdio_pdata = {
45         .bus_freq       = AM35XX_EVM_MDIO_FREQUENCY,
46 };
47
48 static struct resource am3517_mdio_resources[] = {
49         {
50                 .start  = AM35XX_IPSS_EMAC_BASE + AM35XX_EMAC_MDIO_OFFSET,
51                 .end    = AM35XX_IPSS_EMAC_BASE + AM35XX_EMAC_MDIO_OFFSET +
52                           SZ_4K - 1,
53                 .flags  = IORESOURCE_MEM,
54         },
55 };
56
57 static struct platform_device am3517_mdio_device = {
58         .name           = "davinci_mdio",
59         .id             = 0,
60         .num_resources  = ARRAY_SIZE(am3517_mdio_resources),
61         .resource       = am3517_mdio_resources,
62         .dev.platform_data = &am3517_evm_mdio_pdata,
63 };
64
65 static struct emac_platform_data am3517_evm_emac_pdata = {
66         .rmii_en        = 1,
67 };
68
69 static struct resource am3517_emac_resources[] = {
70         {
71                 .start  = AM35XX_IPSS_EMAC_BASE,
72                 .end    = AM35XX_IPSS_EMAC_BASE + 0x2FFFF,
73                 .flags  = IORESOURCE_MEM,
74         },
75         {
76                 .start  = INT_35XX_EMAC_C0_RXTHRESH_IRQ,
77                 .end    = INT_35XX_EMAC_C0_RXTHRESH_IRQ,
78                 .flags  = IORESOURCE_IRQ,
79         },
80         {
81                 .start  = INT_35XX_EMAC_C0_RX_PULSE_IRQ,
82                 .end    = INT_35XX_EMAC_C0_RX_PULSE_IRQ,
83                 .flags  = IORESOURCE_IRQ,
84         },
85         {
86                 .start  = INT_35XX_EMAC_C0_TX_PULSE_IRQ,
87                 .end    = INT_35XX_EMAC_C0_TX_PULSE_IRQ,
88                 .flags  = IORESOURCE_IRQ,
89         },
90         {
91                 .start  = INT_35XX_EMAC_C0_MISC_PULSE_IRQ,
92                 .end    = INT_35XX_EMAC_C0_MISC_PULSE_IRQ,
93                 .flags  = IORESOURCE_IRQ,
94         },
95 };
96
97 static struct platform_device am3517_emac_device = {
98         .name           = "davinci_emac",
99         .id             = -1,
100         .num_resources  = ARRAY_SIZE(am3517_emac_resources),
101         .resource       = am3517_emac_resources,
102 };
103
104 static void am3517_enable_ethernet_int(void)
105 {
106         u32 regval;
107
108         regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
109         regval = (regval | AM35XX_CPGMAC_C0_RX_PULSE_CLR |
110                 AM35XX_CPGMAC_C0_TX_PULSE_CLR |
111                 AM35XX_CPGMAC_C0_MISC_PULSE_CLR |
112                 AM35XX_CPGMAC_C0_RX_THRESH_CLR);
113         omap_ctrl_writel(regval, AM35XX_CONTROL_LVL_INTR_CLEAR);
114         regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
115 }
116
117 static void am3517_disable_ethernet_int(void)
118 {
119         u32 regval;
120
121         regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
122         regval = (regval | AM35XX_CPGMAC_C0_RX_PULSE_CLR |
123                 AM35XX_CPGMAC_C0_TX_PULSE_CLR);
124         omap_ctrl_writel(regval, AM35XX_CONTROL_LVL_INTR_CLEAR);
125         regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
126 }
127
128 void am3517_evm_ethernet_init(struct emac_platform_data *pdata)
129 {
130         unsigned int regval;
131
132         pdata->ctrl_reg_offset          = AM35XX_EMAC_CNTRL_OFFSET;
133         pdata->ctrl_mod_reg_offset      = AM35XX_EMAC_CNTRL_MOD_OFFSET;
134         pdata->ctrl_ram_offset          = AM35XX_EMAC_CNTRL_RAM_OFFSET;
135         pdata->ctrl_ram_size            = AM35XX_EMAC_CNTRL_RAM_SIZE;
136         pdata->version                  = EMAC_VERSION_2;
137         pdata->hw_ram_addr              = AM35XX_EMAC_HW_RAM_ADDR;
138         pdata->interrupt_enable         = am3517_enable_ethernet_int;
139         pdata->interrupt_disable        = am3517_disable_ethernet_int;
140         am3517_emac_device.dev.platform_data    = pdata;
141         platform_device_register(&am3517_emac_device);
142         platform_device_register(&am3517_mdio_device);
143         clk_add_alias(NULL, dev_name(&am3517_mdio_device.dev),
144                       NULL, &am3517_emac_device.dev);
145
146         regval = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
147         regval = regval & (~(AM35XX_CPGMACSS_SW_RST));
148         omap_ctrl_writel(regval, AM35XX_CONTROL_IP_SW_RESET);
149         regval = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
150
151         return ;
152 }
153
154
155
156 #define LCD_PANEL_PWR           176
157 #define LCD_PANEL_BKLIGHT_PWR   182
158 #define LCD_PANEL_PWM           181
159
160 static struct i2c_board_info __initdata am3517evm_i2c1_boardinfo[] = {
161         {
162                 I2C_BOARD_INFO("s35390a", 0x30),
163                 .type           = "s35390a",
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         r = gpio_request(GPIO_RTCS35390A_IRQ, "rtcs35390a-irq");
178         if (r < 0) {
179                 printk(KERN_WARNING "failed to request GPIO#%d\n",
180                                 GPIO_RTCS35390A_IRQ);
181                 return;
182         }
183         r = gpio_direction_input(GPIO_RTCS35390A_IRQ);
184         if (r < 0) {
185                 printk(KERN_WARNING "GPIO#%d cannot be configured as input\n",
186                                 GPIO_RTCS35390A_IRQ);
187                 gpio_free(GPIO_RTCS35390A_IRQ);
188                 return;
189         }
190         am3517evm_i2c1_boardinfo[0].irq = gpio_to_irq(GPIO_RTCS35390A_IRQ);
191 }
192
193 /*
194  * I2C GPIO Expander - TCA6416
195  */
196
197 /* Mounted on Base-Board */
198 static struct pca953x_platform_data am3517evm_gpio_expander_info_0 = {
199         .gpio_base      = OMAP_MAX_GPIO_LINES,
200 };
201 static struct i2c_board_info __initdata am3517evm_i2c2_boardinfo[] = {
202         {
203                 I2C_BOARD_INFO("tca6416", 0x21),
204                 .platform_data = &am3517evm_gpio_expander_info_0,
205         },
206 };
207
208 /* Mounted on UI Card */
209 static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_1 = {
210         .gpio_base      = OMAP_MAX_GPIO_LINES + 16,
211 };
212 static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_2 = {
213         .gpio_base      = OMAP_MAX_GPIO_LINES + 32,
214 };
215 static struct i2c_board_info __initdata am3517evm_i2c3_boardinfo[] = {
216         {
217                 I2C_BOARD_INFO("tca6416", 0x20),
218                 .platform_data = &am3517evm_ui_gpio_expander_info_1,
219         },
220         {
221                 I2C_BOARD_INFO("tca6416", 0x21),
222                 .platform_data = &am3517evm_ui_gpio_expander_info_2,
223         },
224 };
225
226 static int __init am3517_evm_i2c_init(void)
227 {
228         omap_register_i2c_bus(1, 400, NULL, 0);
229         omap_register_i2c_bus(2, 400, am3517evm_i2c2_boardinfo,
230                         ARRAY_SIZE(am3517evm_i2c2_boardinfo));
231         omap_register_i2c_bus(3, 400, am3517evm_i2c3_boardinfo,
232                         ARRAY_SIZE(am3517evm_i2c3_boardinfo));
233
234         return 0;
235 }
236
237 static int lcd_enabled;
238 static int dvi_enabled;
239
240 #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
241                 defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
242 static void __init am3517_evm_display_init(void)
243 {
244         int r;
245
246         omap_mux_init_gpio(LCD_PANEL_PWR, OMAP_PIN_INPUT_PULLUP);
247         omap_mux_init_gpio(LCD_PANEL_BKLIGHT_PWR, OMAP_PIN_INPUT_PULLDOWN);
248         omap_mux_init_gpio(LCD_PANEL_PWM, OMAP_PIN_INPUT_PULLDOWN);
249         /*
250          * Enable GPIO 182 = LCD Backlight Power
251          */
252         r = gpio_request(LCD_PANEL_BKLIGHT_PWR, "lcd_backlight_pwr");
253         if (r) {
254                 printk(KERN_ERR "failed to get lcd_backlight_pwr\n");
255                 return;
256         }
257         gpio_direction_output(LCD_PANEL_BKLIGHT_PWR, 1);
258         /*
259          * Enable GPIO 181 = LCD Panel PWM
260          */
261         r = gpio_request(LCD_PANEL_PWM, "lcd_pwm");
262         if (r) {
263                 printk(KERN_ERR "failed to get lcd_pwm\n");
264                 goto err_1;
265         }
266         gpio_direction_output(LCD_PANEL_PWM, 1);
267         /*
268          * Enable GPIO 176 = LCD Panel Power enable pin
269          */
270         r = gpio_request(LCD_PANEL_PWR, "lcd_panel_pwr");
271         if (r) {
272                 printk(KERN_ERR "failed to get lcd_panel_pwr\n");
273                 goto err_2;
274         }
275         gpio_direction_output(LCD_PANEL_PWR, 1);
276
277         printk(KERN_INFO "Display initialized successfully\n");
278         return;
279
280 err_2:
281         gpio_free(LCD_PANEL_PWM);
282 err_1:
283         gpio_free(LCD_PANEL_BKLIGHT_PWR);
284 }
285 #else
286 static void __init am3517_evm_display_init(void) {}
287 #endif
288
289 static int am3517_evm_panel_enable_lcd(struct omap_dss_device *dssdev)
290 {
291         if (dvi_enabled) {
292                 printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
293                 return -EINVAL;
294         }
295         gpio_set_value(LCD_PANEL_PWR, 1);
296         lcd_enabled = 1;
297
298         return 0;
299 }
300
301 static void am3517_evm_panel_disable_lcd(struct omap_dss_device *dssdev)
302 {
303         gpio_set_value(LCD_PANEL_PWR, 0);
304         lcd_enabled = 0;
305 }
306
307 static struct omap_dss_device am3517_evm_lcd_device = {
308         .type                   = OMAP_DISPLAY_TYPE_DPI,
309         .name                   = "lcd",
310         .driver_name            = "sharp_lq_panel",
311         .phy.dpi.data_lines     = 16,
312         .platform_enable        = am3517_evm_panel_enable_lcd,
313         .platform_disable       = am3517_evm_panel_disable_lcd,
314 };
315
316 static int am3517_evm_panel_enable_tv(struct omap_dss_device *dssdev)
317 {
318         return 0;
319 }
320
321 static void am3517_evm_panel_disable_tv(struct omap_dss_device *dssdev)
322 {
323 }
324
325 static struct omap_dss_device am3517_evm_tv_device = {
326         .type                   = OMAP_DISPLAY_TYPE_VENC,
327         .name                   = "tv",
328         .driver_name            = "venc",
329         .phy.venc.type          = OMAP_DSS_VENC_TYPE_SVIDEO,
330         .platform_enable        = am3517_evm_panel_enable_tv,
331         .platform_disable       = am3517_evm_panel_disable_tv,
332 };
333
334 static int am3517_evm_panel_enable_dvi(struct omap_dss_device *dssdev)
335 {
336         if (lcd_enabled) {
337                 printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");
338                 return -EINVAL;
339         }
340         dvi_enabled = 1;
341
342         return 0;
343 }
344
345 static void am3517_evm_panel_disable_dvi(struct omap_dss_device *dssdev)
346 {
347         dvi_enabled = 0;
348 }
349
350 static struct omap_dss_device am3517_evm_dvi_device = {
351         .type                   = OMAP_DISPLAY_TYPE_DPI,
352         .name                   = "dvi",
353         .driver_name            = "generic_panel",
354         .phy.dpi.data_lines     = 24,
355         .platform_enable        = am3517_evm_panel_enable_dvi,
356         .platform_disable       = am3517_evm_panel_disable_dvi,
357 };
358
359 static struct omap_dss_device *am3517_evm_dss_devices[] = {
360         &am3517_evm_lcd_device,
361         &am3517_evm_tv_device,
362         &am3517_evm_dvi_device,
363 };
364
365 static struct omap_dss_board_info am3517_evm_dss_data = {
366         .num_devices    = ARRAY_SIZE(am3517_evm_dss_devices),
367         .devices        = am3517_evm_dss_devices,
368         .default_device = &am3517_evm_lcd_device,
369 };
370
371 struct platform_device am3517_evm_dss_device = {
372         .name           = "omapdss",
373         .id             = -1,
374         .dev            = {
375                 .platform_data  = &am3517_evm_dss_data,
376         },
377 };
378
379 /*
380  * Board initialization
381  */
382 static struct omap_board_config_kernel am3517_evm_config[] __initdata = {
383 };
384
385 static struct platform_device *am3517_evm_devices[] __initdata = {
386         &am3517_evm_dss_device,
387 };
388
389 static void __init am3517_evm_init_irq(void)
390 {
391         omap_board_config = am3517_evm_config;
392         omap_board_config_size = ARRAY_SIZE(am3517_evm_config);
393
394         omap2_init_common_hw(NULL, NULL);
395         omap_init_irq();
396         omap_gpio_init();
397 }
398
399 static struct omap_musb_board_data musb_board_data = {
400         .interface_type         = MUSB_INTERFACE_ULPI,
401         .mode                   = MUSB_OTG,
402         .power                  = 500,
403 };
404
405 static __init void am3517_evm_musb_init(void)
406 {
407         u32 devconf2;
408
409         /*
410          * Set up USB clock/mode in the DEVCONF2 register.
411          */
412         devconf2 = omap_ctrl_readl(AM35XX_CONTROL_DEVCONF2);
413
414         /* USB2.0 PHY reference clock is 13 MHz */
415         devconf2 &= ~(CONF2_REFFREQ | CONF2_OTGMODE | CONF2_PHY_GPIOMODE);
416         devconf2 |=  CONF2_REFFREQ_13MHZ | CONF2_SESENDEN | CONF2_VBDTCTEN
417                         | CONF2_DATPOL;
418
419         omap_ctrl_writel(devconf2, AM35XX_CONTROL_DEVCONF2);
420
421         usb_musb_init(&musb_board_data);
422 }
423
424 static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
425         .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
426 #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
427                 defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
428         .port_mode[1] = EHCI_HCD_OMAP_MODE_UNKNOWN,
429 #else
430         .port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
431 #endif
432         .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
433
434         .phy_reset  = true,
435         .reset_gpio_port[0]  = 57,
436         .reset_gpio_port[1]  = -EINVAL,
437         .reset_gpio_port[2]  = -EINVAL
438 };
439
440 #ifdef CONFIG_OMAP_MUX
441 static struct omap_board_mux board_mux[] __initdata = {
442         /* USB OTG DRVVBUS offset = 0x212 */
443         OMAP3_MUX(SAD2D_MCAD23, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN),
444         { .reg_offset = OMAP_MUX_TERMINATOR },
445 };
446 #else
447 #define board_mux       NULL
448 #endif
449
450
451 static struct resource am3517_hecc_resources[] = {
452         {
453                 .start  = AM35XX_IPSS_HECC_BASE,
454                 .end    = AM35XX_IPSS_HECC_BASE + 0x3FFF,
455                 .flags  = IORESOURCE_MEM,
456         },
457         {
458                 .start  = INT_35XX_HECC0_IRQ,
459                 .end    = INT_35XX_HECC0_IRQ,
460                 .flags  = IORESOURCE_IRQ,
461         },
462 };
463
464 static struct platform_device am3517_hecc_device = {
465         .name           = "ti_hecc",
466         .id             = -1,
467         .num_resources  = ARRAY_SIZE(am3517_hecc_resources),
468         .resource       = am3517_hecc_resources,
469 };
470
471 static struct ti_hecc_platform_data am3517_evm_hecc_pdata = {
472         .scc_hecc_offset        = AM35XX_HECC_SCC_HECC_OFFSET,
473         .scc_ram_offset         = AM35XX_HECC_SCC_RAM_OFFSET,
474         .hecc_ram_offset        = AM35XX_HECC_RAM_OFFSET,
475         .mbx_offset             = AM35XX_HECC_MBOX_OFFSET,
476         .int_line               = AM35XX_HECC_INT_LINE,
477         .version                = AM35XX_HECC_VERSION,
478 };
479
480 static void am3517_evm_hecc_init(struct ti_hecc_platform_data *pdata)
481 {
482         am3517_hecc_device.dev.platform_data = pdata;
483         platform_device_register(&am3517_hecc_device);
484 }
485
486 static void __init am3517_evm_init(void)
487 {
488         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
489
490         am3517_evm_i2c_init();
491         platform_add_devices(am3517_evm_devices,
492                                 ARRAY_SIZE(am3517_evm_devices));
493
494         omap_serial_init();
495
496         /* Configure GPIO for EHCI port */
497         omap_mux_init_gpio(57, OMAP_PIN_OUTPUT);
498         usb_ehci_init(&ehci_pdata);
499         am3517_evm_hecc_init(&am3517_evm_hecc_pdata);
500         /* DSS */
501         am3517_evm_display_init();
502
503         /* RTC - S35390A */
504         am3517_evm_rtc_init();
505
506         i2c_register_board_info(1, am3517evm_i2c1_boardinfo,
507                                 ARRAY_SIZE(am3517evm_i2c1_boardinfo));
508         /*Ethernet*/
509         am3517_evm_ethernet_init(&am3517_evm_emac_pdata);
510
511         /* MUSB */
512         am3517_evm_musb_init();
513 }
514
515 MACHINE_START(OMAP3517EVM, "OMAP3517/AM3517 EVM")
516         .boot_params    = 0x80000100,
517         .map_io         = omap3_map_io,
518         .reserve        = omap_reserve,
519         .init_irq       = am3517_evm_init_irq,
520         .init_machine   = am3517_evm_init,
521         .timer          = &omap_timer,
522 MACHINE_END