| 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 | #include <linux/mmc/host.h> |
| 28 | #include <linux/usb/musb.h> |
| 29 | #include <linux/platform_data/gpio-omap.h> |
| 30 | |
| 31 | #include "am35xx.h" |
| 32 | #include <asm/mach-types.h> |
| 33 | #include <asm/mach/arch.h> |
| 34 | #include <asm/mach/map.h> |
| 35 | |
| 36 | #include "common.h" |
| 37 | #include <video/omapdss.h> |
| 38 | #include <video/omap-panel-generic-dpi.h> |
| 39 | #include <video/omap-panel-tfp410.h> |
| 40 | |
| 41 | #include "am35xx-emac.h" |
| 42 | #include "mux.h" |
| 43 | #include "control.h" |
| 44 | #include "hsmmc.h" |
| 45 | |
| 46 | #define LCD_PANEL_PWR 176 |
| 47 | #define LCD_PANEL_BKLIGHT_PWR 182 |
| 48 | #define LCD_PANEL_PWM 181 |
| 49 | |
| 50 | static struct i2c_board_info __initdata am3517evm_i2c1_boardinfo[] = { |
| 51 | { |
| 52 | I2C_BOARD_INFO("s35390a", 0x30), |
| 53 | }, |
| 54 | }; |
| 55 | |
| 56 | /* |
| 57 | * RTC - S35390A |
| 58 | */ |
| 59 | #define GPIO_RTCS35390A_IRQ 55 |
| 60 | |
| 61 | static void __init am3517_evm_rtc_init(void) |
| 62 | { |
| 63 | int r; |
| 64 | |
| 65 | omap_mux_init_gpio(GPIO_RTCS35390A_IRQ, OMAP_PIN_INPUT_PULLUP); |
| 66 | |
| 67 | r = gpio_request_one(GPIO_RTCS35390A_IRQ, GPIOF_IN, "rtcs35390a-irq"); |
| 68 | if (r < 0) { |
| 69 | printk(KERN_WARNING "failed to request GPIO#%d\n", |
| 70 | GPIO_RTCS35390A_IRQ); |
| 71 | return; |
| 72 | } |
| 73 | |
| 74 | am3517evm_i2c1_boardinfo[0].irq = gpio_to_irq(GPIO_RTCS35390A_IRQ); |
| 75 | } |
| 76 | |
| 77 | /* |
| 78 | * I2C GPIO Expander - TCA6416 |
| 79 | */ |
| 80 | |
| 81 | /* Mounted on Base-Board */ |
| 82 | static struct pca953x_platform_data am3517evm_gpio_expander_info_0 = { |
| 83 | .gpio_base = OMAP_MAX_GPIO_LINES, |
| 84 | }; |
| 85 | static struct i2c_board_info __initdata am3517evm_i2c2_boardinfo[] = { |
| 86 | { |
| 87 | I2C_BOARD_INFO("tlv320aic23", 0x1A), |
| 88 | }, |
| 89 | { |
| 90 | I2C_BOARD_INFO("tca6416", 0x21), |
| 91 | .platform_data = &am3517evm_gpio_expander_info_0, |
| 92 | }, |
| 93 | }; |
| 94 | |
| 95 | /* Mounted on UI Card */ |
| 96 | static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_1 = { |
| 97 | .gpio_base = OMAP_MAX_GPIO_LINES + 16, |
| 98 | }; |
| 99 | static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_2 = { |
| 100 | .gpio_base = OMAP_MAX_GPIO_LINES + 32, |
| 101 | }; |
| 102 | static struct i2c_board_info __initdata am3517evm_i2c3_boardinfo[] = { |
| 103 | { |
| 104 | I2C_BOARD_INFO("tca6416", 0x20), |
| 105 | .platform_data = &am3517evm_ui_gpio_expander_info_1, |
| 106 | }, |
| 107 | { |
| 108 | I2C_BOARD_INFO("tca6416", 0x21), |
| 109 | .platform_data = &am3517evm_ui_gpio_expander_info_2, |
| 110 | }, |
| 111 | }; |
| 112 | |
| 113 | static int __init am3517_evm_i2c_init(void) |
| 114 | { |
| 115 | omap_register_i2c_bus(1, 400, NULL, 0); |
| 116 | omap_register_i2c_bus(2, 400, am3517evm_i2c2_boardinfo, |
| 117 | ARRAY_SIZE(am3517evm_i2c2_boardinfo)); |
| 118 | omap_register_i2c_bus(3, 400, am3517evm_i2c3_boardinfo, |
| 119 | ARRAY_SIZE(am3517evm_i2c3_boardinfo)); |
| 120 | |
| 121 | return 0; |
| 122 | } |
| 123 | |
| 124 | static int lcd_enabled; |
| 125 | static int dvi_enabled; |
| 126 | |
| 127 | #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \ |
| 128 | defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE) |
| 129 | static struct gpio am3517_evm_dss_gpios[] __initdata = { |
| 130 | /* GPIO 182 = LCD Backlight Power */ |
| 131 | { LCD_PANEL_BKLIGHT_PWR, GPIOF_OUT_INIT_HIGH, "lcd_backlight_pwr" }, |
| 132 | /* GPIO 181 = LCD Panel PWM */ |
| 133 | { LCD_PANEL_PWM, GPIOF_OUT_INIT_HIGH, "lcd bl enable" }, |
| 134 | /* GPIO 176 = LCD Panel Power enable pin */ |
| 135 | { LCD_PANEL_PWR, GPIOF_OUT_INIT_HIGH, "dvi enable" }, |
| 136 | }; |
| 137 | |
| 138 | static void __init am3517_evm_display_init(void) |
| 139 | { |
| 140 | int r; |
| 141 | |
| 142 | omap_mux_init_gpio(LCD_PANEL_PWR, OMAP_PIN_INPUT_PULLUP); |
| 143 | omap_mux_init_gpio(LCD_PANEL_BKLIGHT_PWR, OMAP_PIN_INPUT_PULLDOWN); |
| 144 | omap_mux_init_gpio(LCD_PANEL_PWM, OMAP_PIN_INPUT_PULLDOWN); |
| 145 | |
| 146 | r = gpio_request_array(am3517_evm_dss_gpios, |
| 147 | ARRAY_SIZE(am3517_evm_dss_gpios)); |
| 148 | if (r) { |
| 149 | printk(KERN_ERR "failed to get DSS panel control GPIOs\n"); |
| 150 | return; |
| 151 | } |
| 152 | |
| 153 | printk(KERN_INFO "Display initialized successfully\n"); |
| 154 | } |
| 155 | #else |
| 156 | static void __init am3517_evm_display_init(void) {} |
| 157 | #endif |
| 158 | |
| 159 | static int am3517_evm_panel_enable_lcd(struct omap_dss_device *dssdev) |
| 160 | { |
| 161 | if (dvi_enabled) { |
| 162 | printk(KERN_ERR "cannot enable LCD, DVI is enabled\n"); |
| 163 | return -EINVAL; |
| 164 | } |
| 165 | gpio_set_value(LCD_PANEL_PWR, 1); |
| 166 | lcd_enabled = 1; |
| 167 | |
| 168 | return 0; |
| 169 | } |
| 170 | |
| 171 | static void am3517_evm_panel_disable_lcd(struct omap_dss_device *dssdev) |
| 172 | { |
| 173 | gpio_set_value(LCD_PANEL_PWR, 0); |
| 174 | lcd_enabled = 0; |
| 175 | } |
| 176 | |
| 177 | static struct panel_generic_dpi_data lcd_panel = { |
| 178 | .name = "sharp_lq", |
| 179 | .platform_enable = am3517_evm_panel_enable_lcd, |
| 180 | .platform_disable = am3517_evm_panel_disable_lcd, |
| 181 | }; |
| 182 | |
| 183 | static struct omap_dss_device am3517_evm_lcd_device = { |
| 184 | .type = OMAP_DISPLAY_TYPE_DPI, |
| 185 | .name = "lcd", |
| 186 | .driver_name = "generic_dpi_panel", |
| 187 | .data = &lcd_panel, |
| 188 | .phy.dpi.data_lines = 16, |
| 189 | }; |
| 190 | |
| 191 | static int am3517_evm_panel_enable_tv(struct omap_dss_device *dssdev) |
| 192 | { |
| 193 | return 0; |
| 194 | } |
| 195 | |
| 196 | static void am3517_evm_panel_disable_tv(struct omap_dss_device *dssdev) |
| 197 | { |
| 198 | } |
| 199 | |
| 200 | static struct omap_dss_device am3517_evm_tv_device = { |
| 201 | .type = OMAP_DISPLAY_TYPE_VENC, |
| 202 | .name = "tv", |
| 203 | .driver_name = "venc", |
| 204 | .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO, |
| 205 | .platform_enable = am3517_evm_panel_enable_tv, |
| 206 | .platform_disable = am3517_evm_panel_disable_tv, |
| 207 | }; |
| 208 | |
| 209 | static struct tfp410_platform_data dvi_panel = { |
| 210 | .power_down_gpio = -1, |
| 211 | .i2c_bus_num = -1, |
| 212 | }; |
| 213 | |
| 214 | static struct omap_dss_device am3517_evm_dvi_device = { |
| 215 | .type = OMAP_DISPLAY_TYPE_DPI, |
| 216 | .name = "dvi", |
| 217 | .driver_name = "tfp410", |
| 218 | .data = &dvi_panel, |
| 219 | .phy.dpi.data_lines = 24, |
| 220 | }; |
| 221 | |
| 222 | static struct omap_dss_device *am3517_evm_dss_devices[] = { |
| 223 | &am3517_evm_lcd_device, |
| 224 | &am3517_evm_tv_device, |
| 225 | &am3517_evm_dvi_device, |
| 226 | }; |
| 227 | |
| 228 | static struct omap_dss_board_info am3517_evm_dss_data = { |
| 229 | .num_devices = ARRAY_SIZE(am3517_evm_dss_devices), |
| 230 | .devices = am3517_evm_dss_devices, |
| 231 | .default_device = &am3517_evm_lcd_device, |
| 232 | }; |
| 233 | |
| 234 | /* |
| 235 | * Board initialization |
| 236 | */ |
| 237 | |
| 238 | static struct omap_musb_board_data musb_board_data = { |
| 239 | .interface_type = MUSB_INTERFACE_ULPI, |
| 240 | .mode = MUSB_OTG, |
| 241 | .power = 500, |
| 242 | .set_phy_power = am35x_musb_phy_power, |
| 243 | .clear_irq = am35x_musb_clear_irq, |
| 244 | .set_mode = am35x_set_mode, |
| 245 | .reset = am35x_musb_reset, |
| 246 | }; |
| 247 | |
| 248 | static __init void am3517_evm_musb_init(void) |
| 249 | { |
| 250 | u32 devconf2; |
| 251 | |
| 252 | /* |
| 253 | * Set up USB clock/mode in the DEVCONF2 register. |
| 254 | */ |
| 255 | devconf2 = omap_ctrl_readl(AM35XX_CONTROL_DEVCONF2); |
| 256 | |
| 257 | /* USB2.0 PHY reference clock is 13 MHz */ |
| 258 | devconf2 &= ~(CONF2_REFFREQ | CONF2_OTGMODE | CONF2_PHY_GPIOMODE); |
| 259 | devconf2 |= CONF2_REFFREQ_13MHZ | CONF2_SESENDEN | CONF2_VBDTCTEN |
| 260 | | CONF2_DATPOL; |
| 261 | |
| 262 | omap_ctrl_writel(devconf2, AM35XX_CONTROL_DEVCONF2); |
| 263 | |
| 264 | usb_musb_init(&musb_board_data); |
| 265 | } |
| 266 | |
| 267 | static __init void am3517_evm_mcbsp1_init(void) |
| 268 | { |
| 269 | u32 devconf0; |
| 270 | |
| 271 | /* McBSP1 CLKR/FSR signal to be connected to CLKX/FSX pin */ |
| 272 | devconf0 = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0); |
| 273 | devconf0 |= OMAP2_MCBSP1_CLKR_MASK | OMAP2_MCBSP1_FSR_MASK; |
| 274 | omap_ctrl_writel(devconf0, OMAP2_CONTROL_DEVCONF0); |
| 275 | } |
| 276 | |
| 277 | static struct usbhs_omap_platform_data usbhs_bdata __initdata = { |
| 278 | .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY, |
| 279 | #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \ |
| 280 | defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE) |
| 281 | .port_mode[1] = OMAP_USBHS_PORT_MODE_UNUSED, |
| 282 | #else |
| 283 | .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY, |
| 284 | #endif |
| 285 | .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED, |
| 286 | |
| 287 | .phy_reset = true, |
| 288 | .reset_gpio_port[0] = 57, |
| 289 | .reset_gpio_port[1] = -EINVAL, |
| 290 | .reset_gpio_port[2] = -EINVAL |
| 291 | }; |
| 292 | |
| 293 | #ifdef CONFIG_OMAP_MUX |
| 294 | static struct omap_board_mux board_mux[] __initdata = { |
| 295 | /* USB OTG DRVVBUS offset = 0x212 */ |
| 296 | OMAP3_MUX(SAD2D_MCAD23, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN), |
| 297 | { .reg_offset = OMAP_MUX_TERMINATOR }, |
| 298 | }; |
| 299 | #endif |
| 300 | |
| 301 | |
| 302 | static struct resource am3517_hecc_resources[] = { |
| 303 | { |
| 304 | .start = AM35XX_IPSS_HECC_BASE, |
| 305 | .end = AM35XX_IPSS_HECC_BASE + 0x3FFF, |
| 306 | .flags = IORESOURCE_MEM, |
| 307 | }, |
| 308 | { |
| 309 | .start = 24 + OMAP_INTC_START, |
| 310 | .flags = IORESOURCE_IRQ, |
| 311 | }, |
| 312 | }; |
| 313 | |
| 314 | static struct platform_device am3517_hecc_device = { |
| 315 | .name = "ti_hecc", |
| 316 | .id = -1, |
| 317 | .num_resources = ARRAY_SIZE(am3517_hecc_resources), |
| 318 | .resource = am3517_hecc_resources, |
| 319 | }; |
| 320 | |
| 321 | static struct ti_hecc_platform_data am3517_evm_hecc_pdata = { |
| 322 | .scc_hecc_offset = AM35XX_HECC_SCC_HECC_OFFSET, |
| 323 | .scc_ram_offset = AM35XX_HECC_SCC_RAM_OFFSET, |
| 324 | .hecc_ram_offset = AM35XX_HECC_RAM_OFFSET, |
| 325 | .mbx_offset = AM35XX_HECC_MBOX_OFFSET, |
| 326 | .int_line = AM35XX_HECC_INT_LINE, |
| 327 | .version = AM35XX_HECC_VERSION, |
| 328 | }; |
| 329 | |
| 330 | static void am3517_evm_hecc_init(struct ti_hecc_platform_data *pdata) |
| 331 | { |
| 332 | am3517_hecc_device.dev.platform_data = pdata; |
| 333 | platform_device_register(&am3517_hecc_device); |
| 334 | } |
| 335 | |
| 336 | static struct omap2_hsmmc_info mmc[] = { |
| 337 | { |
| 338 | .mmc = 1, |
| 339 | .caps = MMC_CAP_4_BIT_DATA, |
| 340 | .gpio_cd = 127, |
| 341 | .gpio_wp = 126, |
| 342 | }, |
| 343 | { |
| 344 | .mmc = 2, |
| 345 | .caps = MMC_CAP_4_BIT_DATA, |
| 346 | .gpio_cd = 128, |
| 347 | .gpio_wp = 129, |
| 348 | }, |
| 349 | {} /* Terminator */ |
| 350 | }; |
| 351 | |
| 352 | |
| 353 | static void __init am3517_evm_init(void) |
| 354 | { |
| 355 | omap3_mux_init(board_mux, OMAP_PACKAGE_CBB); |
| 356 | |
| 357 | am3517_evm_i2c_init(); |
| 358 | omap_display_init(&am3517_evm_dss_data); |
| 359 | omap_serial_init(); |
| 360 | omap_sdrc_init(NULL, NULL); |
| 361 | |
| 362 | /* Configure GPIO for EHCI port */ |
| 363 | omap_mux_init_gpio(57, OMAP_PIN_OUTPUT); |
| 364 | usbhs_init(&usbhs_bdata); |
| 365 | am3517_evm_hecc_init(&am3517_evm_hecc_pdata); |
| 366 | /* DSS */ |
| 367 | am3517_evm_display_init(); |
| 368 | |
| 369 | /* RTC - S35390A */ |
| 370 | am3517_evm_rtc_init(); |
| 371 | |
| 372 | i2c_register_board_info(1, am3517evm_i2c1_boardinfo, |
| 373 | ARRAY_SIZE(am3517evm_i2c1_boardinfo)); |
| 374 | /*Ethernet*/ |
| 375 | am35xx_emac_init(AM35XX_DEFAULT_MDIO_FREQUENCY, 1); |
| 376 | |
| 377 | /* MUSB */ |
| 378 | am3517_evm_musb_init(); |
| 379 | |
| 380 | /* McBSP1 */ |
| 381 | am3517_evm_mcbsp1_init(); |
| 382 | |
| 383 | /* MMC init function */ |
| 384 | omap_hsmmc_init(mmc); |
| 385 | } |
| 386 | |
| 387 | MACHINE_START(OMAP3517EVM, "OMAP3517/AM3517 EVM") |
| 388 | .atag_offset = 0x100, |
| 389 | .reserve = omap_reserve, |
| 390 | .map_io = omap3_map_io, |
| 391 | .init_early = am35xx_init_early, |
| 392 | .init_irq = omap3_init_irq, |
| 393 | .handle_irq = omap3_intc_handle_irq, |
| 394 | .init_machine = am3517_evm_init, |
| 395 | .init_late = am35xx_init_late, |
| 396 | .init_time = omap3_sync32k_timer_init, |
| 397 | .restart = omap3xxx_restart, |
| 398 | MACHINE_END |