2 * linux/arch/arm/mach-omap2/board-am3517evm.c
4 * Copyright (C) 2009 Texas Instruments Incorporated
5 * Author: Ranjith Lohithakshan <ranjithl@ti.com>
7 * Based on mach-omap2/board-omap3evm.c
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.
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.
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>
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>
34 #include <plat/board.h>
35 #include <plat/common.h>
37 #include <plat/display.h>
38 #include <plat/panel-generic-dpi.h>
43 #define AM35XX_EVM_MDIO_FREQUENCY (1000000)
45 static struct mdio_platform_data am3517_evm_mdio_pdata = {
46 .bus_freq = AM35XX_EVM_MDIO_FREQUENCY,
49 static struct resource am3517_mdio_resources[] = {
51 .start = AM35XX_IPSS_EMAC_BASE + AM35XX_EMAC_MDIO_OFFSET,
52 .end = AM35XX_IPSS_EMAC_BASE + AM35XX_EMAC_MDIO_OFFSET +
54 .flags = IORESOURCE_MEM,
58 static struct platform_device am3517_mdio_device = {
59 .name = "davinci_mdio",
61 .num_resources = ARRAY_SIZE(am3517_mdio_resources),
62 .resource = am3517_mdio_resources,
63 .dev.platform_data = &am3517_evm_mdio_pdata,
66 static struct emac_platform_data am3517_evm_emac_pdata = {
70 static struct resource am3517_emac_resources[] = {
72 .start = AM35XX_IPSS_EMAC_BASE,
73 .end = AM35XX_IPSS_EMAC_BASE + 0x2FFFF,
74 .flags = IORESOURCE_MEM,
77 .start = INT_35XX_EMAC_C0_RXTHRESH_IRQ,
78 .end = INT_35XX_EMAC_C0_RXTHRESH_IRQ,
79 .flags = IORESOURCE_IRQ,
82 .start = INT_35XX_EMAC_C0_RX_PULSE_IRQ,
83 .end = INT_35XX_EMAC_C0_RX_PULSE_IRQ,
84 .flags = IORESOURCE_IRQ,
87 .start = INT_35XX_EMAC_C0_TX_PULSE_IRQ,
88 .end = INT_35XX_EMAC_C0_TX_PULSE_IRQ,
89 .flags = IORESOURCE_IRQ,
92 .start = INT_35XX_EMAC_C0_MISC_PULSE_IRQ,
93 .end = INT_35XX_EMAC_C0_MISC_PULSE_IRQ,
94 .flags = IORESOURCE_IRQ,
98 static struct platform_device am3517_emac_device = {
99 .name = "davinci_emac",
101 .num_resources = ARRAY_SIZE(am3517_emac_resources),
102 .resource = am3517_emac_resources,
105 static void am3517_enable_ethernet_int(void)
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);
118 static void am3517_disable_ethernet_int(void)
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);
129 static void am3517_evm_ethernet_init(struct emac_platform_data *pdata)
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);
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);
157 #define LCD_PANEL_PWR 176
158 #define LCD_PANEL_BKLIGHT_PWR 182
159 #define LCD_PANEL_PWM 181
161 static struct i2c_board_info __initdata am3517evm_i2c1_boardinfo[] = {
163 I2C_BOARD_INFO("s35390a", 0x30),
170 #define GPIO_RTCS35390A_IRQ 55
172 static void __init am3517_evm_rtc_init(void)
176 omap_mux_init_gpio(GPIO_RTCS35390A_IRQ, OMAP_PIN_INPUT_PULLUP);
177 r = gpio_request(GPIO_RTCS35390A_IRQ, "rtcs35390a-irq");
179 printk(KERN_WARNING "failed to request GPIO#%d\n",
180 GPIO_RTCS35390A_IRQ);
183 r = gpio_direction_input(GPIO_RTCS35390A_IRQ);
185 printk(KERN_WARNING "GPIO#%d cannot be configured as input\n",
186 GPIO_RTCS35390A_IRQ);
187 gpio_free(GPIO_RTCS35390A_IRQ);
190 am3517evm_i2c1_boardinfo[0].irq = gpio_to_irq(GPIO_RTCS35390A_IRQ);
194 * I2C GPIO Expander - TCA6416
197 /* Mounted on Base-Board */
198 static struct pca953x_platform_data am3517evm_gpio_expander_info_0 = {
199 .gpio_base = OMAP_MAX_GPIO_LINES,
201 static struct i2c_board_info __initdata am3517evm_i2c2_boardinfo[] = {
203 I2C_BOARD_INFO("tlv320aic23", 0x1A),
206 I2C_BOARD_INFO("tca6416", 0x21),
207 .platform_data = &am3517evm_gpio_expander_info_0,
211 /* Mounted on UI Card */
212 static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_1 = {
213 .gpio_base = OMAP_MAX_GPIO_LINES + 16,
215 static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_2 = {
216 .gpio_base = OMAP_MAX_GPIO_LINES + 32,
218 static struct i2c_board_info __initdata am3517evm_i2c3_boardinfo[] = {
220 I2C_BOARD_INFO("tca6416", 0x20),
221 .platform_data = &am3517evm_ui_gpio_expander_info_1,
224 I2C_BOARD_INFO("tca6416", 0x21),
225 .platform_data = &am3517evm_ui_gpio_expander_info_2,
229 static int __init am3517_evm_i2c_init(void)
231 omap_register_i2c_bus(1, 400, NULL, 0);
232 omap_register_i2c_bus(2, 400, am3517evm_i2c2_boardinfo,
233 ARRAY_SIZE(am3517evm_i2c2_boardinfo));
234 omap_register_i2c_bus(3, 400, am3517evm_i2c3_boardinfo,
235 ARRAY_SIZE(am3517evm_i2c3_boardinfo));
240 static int lcd_enabled;
241 static int dvi_enabled;
243 #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
244 defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
245 static void __init am3517_evm_display_init(void)
249 omap_mux_init_gpio(LCD_PANEL_PWR, OMAP_PIN_INPUT_PULLUP);
250 omap_mux_init_gpio(LCD_PANEL_BKLIGHT_PWR, OMAP_PIN_INPUT_PULLDOWN);
251 omap_mux_init_gpio(LCD_PANEL_PWM, OMAP_PIN_INPUT_PULLDOWN);
253 * Enable GPIO 182 = LCD Backlight Power
255 r = gpio_request(LCD_PANEL_BKLIGHT_PWR, "lcd_backlight_pwr");
257 printk(KERN_ERR "failed to get lcd_backlight_pwr\n");
260 gpio_direction_output(LCD_PANEL_BKLIGHT_PWR, 1);
262 * Enable GPIO 181 = LCD Panel PWM
264 r = gpio_request(LCD_PANEL_PWM, "lcd_pwm");
266 printk(KERN_ERR "failed to get lcd_pwm\n");
269 gpio_direction_output(LCD_PANEL_PWM, 1);
271 * Enable GPIO 176 = LCD Panel Power enable pin
273 r = gpio_request(LCD_PANEL_PWR, "lcd_panel_pwr");
275 printk(KERN_ERR "failed to get lcd_panel_pwr\n");
278 gpio_direction_output(LCD_PANEL_PWR, 1);
280 printk(KERN_INFO "Display initialized successfully\n");
284 gpio_free(LCD_PANEL_PWM);
286 gpio_free(LCD_PANEL_BKLIGHT_PWR);
289 static void __init am3517_evm_display_init(void) {}
292 static int am3517_evm_panel_enable_lcd(struct omap_dss_device *dssdev)
295 printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
298 gpio_set_value(LCD_PANEL_PWR, 1);
304 static void am3517_evm_panel_disable_lcd(struct omap_dss_device *dssdev)
306 gpio_set_value(LCD_PANEL_PWR, 0);
310 static struct panel_generic_dpi_data lcd_panel = {
312 .platform_enable = am3517_evm_panel_enable_lcd,
313 .platform_disable = am3517_evm_panel_disable_lcd,
316 static struct omap_dss_device am3517_evm_lcd_device = {
317 .type = OMAP_DISPLAY_TYPE_DPI,
319 .driver_name = "generic_dpi_panel",
321 .phy.dpi.data_lines = 16,
324 static int am3517_evm_panel_enable_tv(struct omap_dss_device *dssdev)
329 static void am3517_evm_panel_disable_tv(struct omap_dss_device *dssdev)
333 static struct omap_dss_device am3517_evm_tv_device = {
334 .type = OMAP_DISPLAY_TYPE_VENC,
336 .driver_name = "venc",
337 .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
338 .platform_enable = am3517_evm_panel_enable_tv,
339 .platform_disable = am3517_evm_panel_disable_tv,
342 static int am3517_evm_panel_enable_dvi(struct omap_dss_device *dssdev)
345 printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");
353 static void am3517_evm_panel_disable_dvi(struct omap_dss_device *dssdev)
358 static struct panel_generic_dpi_data dvi_panel = {
360 .platform_enable = am3517_evm_panel_enable_dvi,
361 .platform_disable = am3517_evm_panel_disable_dvi,
364 static struct omap_dss_device am3517_evm_dvi_device = {
365 .type = OMAP_DISPLAY_TYPE_DPI,
367 .driver_name = "generic_dpi_panel",
369 .phy.dpi.data_lines = 24,
372 static struct omap_dss_device *am3517_evm_dss_devices[] = {
373 &am3517_evm_lcd_device,
374 &am3517_evm_tv_device,
375 &am3517_evm_dvi_device,
378 static struct omap_dss_board_info am3517_evm_dss_data = {
379 .num_devices = ARRAY_SIZE(am3517_evm_dss_devices),
380 .devices = am3517_evm_dss_devices,
381 .default_device = &am3517_evm_lcd_device,
385 * Board initialization
387 static void __init am3517_evm_init_early(void)
389 omap2_init_common_infrastructure();
390 omap2_init_common_devices(NULL, NULL);
393 static struct omap_musb_board_data musb_board_data = {
394 .interface_type = MUSB_INTERFACE_ULPI,
397 .set_phy_power = am35x_musb_phy_power,
398 .clear_irq = am35x_musb_clear_irq,
399 .set_mode = am35x_musb_set_mode,
400 .reset = am35x_musb_reset,
403 static __init void am3517_evm_musb_init(void)
408 * Set up USB clock/mode in the DEVCONF2 register.
410 devconf2 = omap_ctrl_readl(AM35XX_CONTROL_DEVCONF2);
412 /* USB2.0 PHY reference clock is 13 MHz */
413 devconf2 &= ~(CONF2_REFFREQ | CONF2_OTGMODE | CONF2_PHY_GPIOMODE);
414 devconf2 |= CONF2_REFFREQ_13MHZ | CONF2_SESENDEN | CONF2_VBDTCTEN
417 omap_ctrl_writel(devconf2, AM35XX_CONTROL_DEVCONF2);
419 usb_musb_init(&musb_board_data);
422 static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
423 .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
424 #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
425 defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
426 .port_mode[1] = OMAP_USBHS_PORT_MODE_UNUSED,
428 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
430 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
433 .reset_gpio_port[0] = 57,
434 .reset_gpio_port[1] = -EINVAL,
435 .reset_gpio_port[2] = -EINVAL
438 #ifdef CONFIG_OMAP_MUX
439 static struct omap_board_mux board_mux[] __initdata = {
440 /* USB OTG DRVVBUS offset = 0x212 */
441 OMAP3_MUX(SAD2D_MCAD23, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLDOWN),
442 { .reg_offset = OMAP_MUX_TERMINATOR },
447 static struct resource am3517_hecc_resources[] = {
449 .start = AM35XX_IPSS_HECC_BASE,
450 .end = AM35XX_IPSS_HECC_BASE + 0x3FFF,
451 .flags = IORESOURCE_MEM,
454 .start = INT_35XX_HECC0_IRQ,
455 .end = INT_35XX_HECC0_IRQ,
456 .flags = IORESOURCE_IRQ,
460 static struct platform_device am3517_hecc_device = {
463 .num_resources = ARRAY_SIZE(am3517_hecc_resources),
464 .resource = am3517_hecc_resources,
467 static struct ti_hecc_platform_data am3517_evm_hecc_pdata = {
468 .scc_hecc_offset = AM35XX_HECC_SCC_HECC_OFFSET,
469 .scc_ram_offset = AM35XX_HECC_SCC_RAM_OFFSET,
470 .hecc_ram_offset = AM35XX_HECC_RAM_OFFSET,
471 .mbx_offset = AM35XX_HECC_MBOX_OFFSET,
472 .int_line = AM35XX_HECC_INT_LINE,
473 .version = AM35XX_HECC_VERSION,
476 static void am3517_evm_hecc_init(struct ti_hecc_platform_data *pdata)
478 am3517_hecc_device.dev.platform_data = pdata;
479 platform_device_register(&am3517_hecc_device);
482 static struct omap_board_config_kernel am3517_evm_config[] __initdata = {
485 static void __init am3517_evm_init(void)
487 omap_board_config = am3517_evm_config;
488 omap_board_config_size = ARRAY_SIZE(am3517_evm_config);
489 omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
491 am3517_evm_i2c_init();
492 omap_display_init(&am3517_evm_dss_data);
495 /* Configure GPIO for EHCI port */
496 omap_mux_init_gpio(57, OMAP_PIN_OUTPUT);
497 usbhs_init(&usbhs_bdata);
498 am3517_evm_hecc_init(&am3517_evm_hecc_pdata);
500 am3517_evm_display_init();
503 am3517_evm_rtc_init();
505 i2c_register_board_info(1, am3517evm_i2c1_boardinfo,
506 ARRAY_SIZE(am3517evm_i2c1_boardinfo));
508 am3517_evm_ethernet_init(&am3517_evm_emac_pdata);
511 am3517_evm_musb_init();
514 MACHINE_START(OMAP3517EVM, "OMAP3517/AM3517 EVM")
515 .boot_params = 0x80000100,
516 .reserve = omap_reserve,
517 .map_io = omap3_map_io,
518 .init_early = am3517_evm_init_early,
519 .init_irq = omap_init_irq,
520 .init_machine = am3517_evm_init,
521 .timer = &omap_timer,