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/platform_device.h>
22 #include <linux/gpio.h>
23 #include <linux/i2c/pca953x.h>
24 #include <linux/can/platform/ti_hecc.h>
25 #include <linux/davinci_emac.h>
27 #include <mach/hardware.h>
28 #include <mach/am35xx.h>
29 #include <asm/mach-types.h>
30 #include <asm/mach/arch.h>
31 #include <asm/mach/map.h>
33 #include <plat/board.h>
34 #include <plat/common.h>
35 #include <plat/control.h>
37 #include <plat/display.h>
41 #define AM35XX_EVM_PHY_MASK (0xF)
42 #define AM35XX_EVM_MDIO_FREQUENCY (1000000)
44 static struct emac_platform_data am3517_evm_emac_pdata = {
45 .phy_mask = AM35XX_EVM_PHY_MASK,
46 .mdio_max_freq = AM35XX_EVM_MDIO_FREQUENCY,
50 static struct resource am3517_emac_resources[] = {
52 .start = AM35XX_IPSS_EMAC_BASE,
53 .end = AM35XX_IPSS_EMAC_BASE + 0x3FFFF,
54 .flags = IORESOURCE_MEM,
57 .start = INT_35XX_EMAC_C0_RXTHRESH_IRQ,
58 .end = INT_35XX_EMAC_C0_RXTHRESH_IRQ,
59 .flags = IORESOURCE_IRQ,
62 .start = INT_35XX_EMAC_C0_RX_PULSE_IRQ,
63 .end = INT_35XX_EMAC_C0_RX_PULSE_IRQ,
64 .flags = IORESOURCE_IRQ,
67 .start = INT_35XX_EMAC_C0_TX_PULSE_IRQ,
68 .end = INT_35XX_EMAC_C0_TX_PULSE_IRQ,
69 .flags = IORESOURCE_IRQ,
72 .start = INT_35XX_EMAC_C0_MISC_PULSE_IRQ,
73 .end = INT_35XX_EMAC_C0_MISC_PULSE_IRQ,
74 .flags = IORESOURCE_IRQ,
78 static struct platform_device am3517_emac_device = {
79 .name = "davinci_emac",
81 .num_resources = ARRAY_SIZE(am3517_emac_resources),
82 .resource = am3517_emac_resources,
85 static void am3517_enable_ethernet_int(void)
89 regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
90 regval = (regval | AM35XX_CPGMAC_C0_RX_PULSE_CLR |
91 AM35XX_CPGMAC_C0_TX_PULSE_CLR |
92 AM35XX_CPGMAC_C0_MISC_PULSE_CLR |
93 AM35XX_CPGMAC_C0_RX_THRESH_CLR);
94 omap_ctrl_writel(regval, AM35XX_CONTROL_LVL_INTR_CLEAR);
95 regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
98 static void am3517_disable_ethernet_int(void)
102 regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
103 regval = (regval | AM35XX_CPGMAC_C0_RX_PULSE_CLR |
104 AM35XX_CPGMAC_C0_TX_PULSE_CLR);
105 omap_ctrl_writel(regval, AM35XX_CONTROL_LVL_INTR_CLEAR);
106 regval = omap_ctrl_readl(AM35XX_CONTROL_LVL_INTR_CLEAR);
109 void am3517_evm_ethernet_init(struct emac_platform_data *pdata)
113 pdata->ctrl_reg_offset = AM35XX_EMAC_CNTRL_OFFSET;
114 pdata->ctrl_mod_reg_offset = AM35XX_EMAC_CNTRL_MOD_OFFSET;
115 pdata->ctrl_ram_offset = AM35XX_EMAC_CNTRL_RAM_OFFSET;
116 pdata->mdio_reg_offset = AM35XX_EMAC_MDIO_OFFSET;
117 pdata->ctrl_ram_size = AM35XX_EMAC_CNTRL_RAM_SIZE;
118 pdata->version = EMAC_VERSION_2;
119 pdata->hw_ram_addr = AM35XX_EMAC_HW_RAM_ADDR;
120 pdata->interrupt_enable = am3517_enable_ethernet_int;
121 pdata->interrupt_disable = am3517_disable_ethernet_int;
122 am3517_emac_device.dev.platform_data = pdata;
123 platform_device_register(&am3517_emac_device);
125 regval = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
126 regval = regval & (~(AM35XX_CPGMACSS_SW_RST));
127 omap_ctrl_writel(regval, AM35XX_CONTROL_IP_SW_RESET);
128 regval = omap_ctrl_readl(AM35XX_CONTROL_IP_SW_RESET);
135 #define LCD_PANEL_PWR 176
136 #define LCD_PANEL_BKLIGHT_PWR 182
137 #define LCD_PANEL_PWM 181
139 static struct i2c_board_info __initdata am3517evm_i2c_boardinfo[] = {
141 I2C_BOARD_INFO("s35390a", 0x30),
149 #define GPIO_RTCS35390A_IRQ 55
151 static void __init am3517_evm_rtc_init(void)
155 omap_mux_init_gpio(GPIO_RTCS35390A_IRQ, OMAP_PIN_INPUT_PULLUP);
156 r = gpio_request(GPIO_RTCS35390A_IRQ, "rtcs35390a-irq");
158 printk(KERN_WARNING "failed to request GPIO#%d\n",
159 GPIO_RTCS35390A_IRQ);
162 r = gpio_direction_input(GPIO_RTCS35390A_IRQ);
164 printk(KERN_WARNING "GPIO#%d cannot be configured as input\n",
165 GPIO_RTCS35390A_IRQ);
166 gpio_free(GPIO_RTCS35390A_IRQ);
169 am3517evm_i2c_boardinfo[0].irq = gpio_to_irq(GPIO_RTCS35390A_IRQ);
173 * I2C GPIO Expander - TCA6416
176 /* Mounted on Base-Board */
177 static struct pca953x_platform_data am3517evm_gpio_expander_info_0 = {
178 .gpio_base = OMAP_MAX_GPIO_LINES,
180 static struct i2c_board_info __initdata am3517evm_tca6416_info_0[] = {
182 I2C_BOARD_INFO("tca6416", 0x21),
183 .platform_data = &am3517evm_gpio_expander_info_0,
187 /* Mounted on UI Card */
188 static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_1 = {
189 .gpio_base = OMAP_MAX_GPIO_LINES + 16,
191 static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_2 = {
192 .gpio_base = OMAP_MAX_GPIO_LINES + 32,
194 static struct i2c_board_info __initdata am3517evm_ui_tca6416_info[] = {
196 I2C_BOARD_INFO("tca6416", 0x20),
197 .platform_data = &am3517evm_ui_gpio_expander_info_1,
200 I2C_BOARD_INFO("tca6416", 0x21),
201 .platform_data = &am3517evm_ui_gpio_expander_info_2,
205 static int __init am3517_evm_i2c_init(void)
207 omap_register_i2c_bus(1, 400, NULL, 0);
208 omap_register_i2c_bus(2, 400, am3517evm_tca6416_info_0,
209 ARRAY_SIZE(am3517evm_tca6416_info_0));
210 omap_register_i2c_bus(3, 400, am3517evm_ui_tca6416_info,
211 ARRAY_SIZE(am3517evm_ui_tca6416_info));
216 static int lcd_enabled;
217 static int dvi_enabled;
219 static void __init am3517_evm_display_init(void)
223 omap_mux_init_gpio(LCD_PANEL_PWR, OMAP_PIN_INPUT_PULLUP);
224 omap_mux_init_gpio(LCD_PANEL_BKLIGHT_PWR, OMAP_PIN_INPUT_PULLDOWN);
225 omap_mux_init_gpio(LCD_PANEL_PWM, OMAP_PIN_INPUT_PULLDOWN);
227 * Enable GPIO 182 = LCD Backlight Power
229 r = gpio_request(LCD_PANEL_BKLIGHT_PWR, "lcd_backlight_pwr");
231 printk(KERN_ERR "failed to get lcd_backlight_pwr\n");
234 gpio_direction_output(LCD_PANEL_BKLIGHT_PWR, 1);
236 * Enable GPIO 181 = LCD Panel PWM
238 r = gpio_request(LCD_PANEL_PWM, "lcd_pwm");
240 printk(KERN_ERR "failed to get lcd_pwm\n");
243 gpio_direction_output(LCD_PANEL_PWM, 1);
245 * Enable GPIO 176 = LCD Panel Power enable pin
247 r = gpio_request(LCD_PANEL_PWR, "lcd_panel_pwr");
249 printk(KERN_ERR "failed to get lcd_panel_pwr\n");
252 gpio_direction_output(LCD_PANEL_PWR, 1);
254 printk(KERN_INFO "Display initialized successfully\n");
258 gpio_free(LCD_PANEL_PWM);
260 gpio_free(LCD_PANEL_BKLIGHT_PWR);
263 static int am3517_evm_panel_enable_lcd(struct omap_dss_device *dssdev)
266 printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
269 gpio_set_value(LCD_PANEL_PWR, 1);
275 static void am3517_evm_panel_disable_lcd(struct omap_dss_device *dssdev)
277 gpio_set_value(LCD_PANEL_PWR, 0);
281 static struct omap_dss_device am3517_evm_lcd_device = {
282 .type = OMAP_DISPLAY_TYPE_DPI,
284 .driver_name = "sharp_lq_panel",
285 .phy.dpi.data_lines = 16,
286 .platform_enable = am3517_evm_panel_enable_lcd,
287 .platform_disable = am3517_evm_panel_disable_lcd,
290 static int am3517_evm_panel_enable_tv(struct omap_dss_device *dssdev)
295 static void am3517_evm_panel_disable_tv(struct omap_dss_device *dssdev)
299 static struct omap_dss_device am3517_evm_tv_device = {
300 .type = OMAP_DISPLAY_TYPE_VENC,
302 .driver_name = "venc",
303 .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
304 .platform_enable = am3517_evm_panel_enable_tv,
305 .platform_disable = am3517_evm_panel_disable_tv,
308 static int am3517_evm_panel_enable_dvi(struct omap_dss_device *dssdev)
311 printk(KERN_ERR "cannot enable DVI, LCD is enabled\n");
319 static void am3517_evm_panel_disable_dvi(struct omap_dss_device *dssdev)
324 static struct omap_dss_device am3517_evm_dvi_device = {
325 .type = OMAP_DISPLAY_TYPE_DPI,
327 .driver_name = "generic_panel",
328 .phy.dpi.data_lines = 24,
329 .platform_enable = am3517_evm_panel_enable_dvi,
330 .platform_disable = am3517_evm_panel_disable_dvi,
333 static struct omap_dss_device *am3517_evm_dss_devices[] = {
334 &am3517_evm_lcd_device,
335 &am3517_evm_tv_device,
336 &am3517_evm_dvi_device,
339 static struct omap_dss_board_info am3517_evm_dss_data = {
340 .num_devices = ARRAY_SIZE(am3517_evm_dss_devices),
341 .devices = am3517_evm_dss_devices,
342 .default_device = &am3517_evm_lcd_device,
345 struct platform_device am3517_evm_dss_device = {
349 .platform_data = &am3517_evm_dss_data,
354 * Board initialization
356 static struct omap_board_config_kernel am3517_evm_config[] __initdata = {
359 static struct platform_device *am3517_evm_devices[] __initdata = {
360 &am3517_evm_dss_device,
363 static void __init am3517_evm_init_irq(void)
365 omap_board_config = am3517_evm_config;
366 omap_board_config_size = ARRAY_SIZE(am3517_evm_config);
368 omap2_init_common_hw(NULL, NULL);
373 static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
374 .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
375 .port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
376 .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
379 .reset_gpio_port[0] = 57,
380 .reset_gpio_port[1] = -EINVAL,
381 .reset_gpio_port[2] = -EINVAL
384 #ifdef CONFIG_OMAP_MUX
385 static struct omap_board_mux board_mux[] __initdata = {
386 { .reg_offset = OMAP_MUX_TERMINATOR },
389 #define board_mux NULL
393 static struct resource am3517_hecc_resources[] = {
395 .start = AM35XX_IPSS_HECC_BASE,
396 .end = AM35XX_IPSS_HECC_BASE + 0x3FFF,
397 .flags = IORESOURCE_MEM,
400 .start = INT_35XX_HECC0_IRQ,
401 .end = INT_35XX_HECC0_IRQ,
402 .flags = IORESOURCE_IRQ,
406 static struct platform_device am3517_hecc_device = {
409 .num_resources = ARRAY_SIZE(am3517_hecc_resources),
410 .resource = am3517_hecc_resources,
413 static struct ti_hecc_platform_data am3517_evm_hecc_pdata = {
414 .scc_hecc_offset = AM35XX_HECC_SCC_HECC_OFFSET,
415 .scc_ram_offset = AM35XX_HECC_SCC_RAM_OFFSET,
416 .hecc_ram_offset = AM35XX_HECC_RAM_OFFSET,
417 .mbx_offset = AM35XX_HECC_MBOX_OFFSET,
418 .int_line = AM35XX_HECC_INT_LINE,
419 .version = AM35XX_HECC_VERSION,
422 static void am3517_evm_hecc_init(struct ti_hecc_platform_data *pdata)
424 am3517_hecc_device.dev.platform_data = pdata;
425 platform_device_register(&am3517_hecc_device);
428 static void __init am3517_evm_init(void)
430 omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
432 am3517_evm_i2c_init();
433 platform_add_devices(am3517_evm_devices,
434 ARRAY_SIZE(am3517_evm_devices));
438 /* Configure GPIO for EHCI port */
439 omap_mux_init_gpio(57, OMAP_PIN_OUTPUT);
440 usb_ehci_init(&ehci_pdata);
441 am3517_evm_hecc_init(&am3517_evm_hecc_pdata);
443 am3517_evm_display_init();
446 am3517_evm_rtc_init();
448 i2c_register_board_info(1, am3517evm_i2c_boardinfo,
449 ARRAY_SIZE(am3517evm_i2c_boardinfo));
451 am3517_evm_ethernet_init(&am3517_evm_emac_pdata);
454 static void __init am3517_evm_map_io(void)
456 omap2_set_globals_343x();
457 omap34xx_map_common_io();
460 MACHINE_START(OMAP3517EVM, "OMAP3517/AM3517 EVM")
461 .phys_io = 0x48000000,
462 .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
463 .boot_params = 0x80000100,
464 .map_io = am3517_evm_map_io,
465 .init_irq = am3517_evm_init_irq,
466 .init_machine = am3517_evm_init,
467 .timer = &omap_timer,