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 <video/omapdss.h>
38 #include <video/omap-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
);
178 r
= gpio_request_one(GPIO_RTCS35390A_IRQ
, GPIOF_IN
, "rtcs35390a-irq");
180 printk(KERN_WARNING
"failed to request GPIO#%d\n",
181 GPIO_RTCS35390A_IRQ
);
185 am3517evm_i2c1_boardinfo
[0].irq
= gpio_to_irq(GPIO_RTCS35390A_IRQ
);
189 * I2C GPIO Expander - TCA6416
192 /* Mounted on Base-Board */
193 static struct pca953x_platform_data am3517evm_gpio_expander_info_0
= {
194 .gpio_base
= OMAP_MAX_GPIO_LINES
,
196 static struct i2c_board_info __initdata am3517evm_i2c2_boardinfo
[] = {
198 I2C_BOARD_INFO("tlv320aic23", 0x1A),
201 I2C_BOARD_INFO("tca6416", 0x21),
202 .platform_data
= &am3517evm_gpio_expander_info_0
,
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,
210 static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_2
= {
211 .gpio_base
= OMAP_MAX_GPIO_LINES
+ 32,
213 static struct i2c_board_info __initdata am3517evm_i2c3_boardinfo
[] = {
215 I2C_BOARD_INFO("tca6416", 0x20),
216 .platform_data
= &am3517evm_ui_gpio_expander_info_1
,
219 I2C_BOARD_INFO("tca6416", 0x21),
220 .platform_data
= &am3517evm_ui_gpio_expander_info_2
,
224 static int __init
am3517_evm_i2c_init(void)
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
));
235 static int lcd_enabled
;
236 static int dvi_enabled
;
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" },
249 static void __init
am3517_evm_display_init(void)
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
);
257 r
= gpio_request_array(am3517_evm_dss_gpios
,
258 ARRAY_SIZE(am3517_evm_dss_gpios
));
260 printk(KERN_ERR
"failed to get DSS panel control GPIOs\n");
264 printk(KERN_INFO
"Display initialized successfully\n");
267 static void __init
am3517_evm_display_init(void) {}
270 static int am3517_evm_panel_enable_lcd(struct omap_dss_device
*dssdev
)
273 printk(KERN_ERR
"cannot enable LCD, DVI is enabled\n");
276 gpio_set_value(LCD_PANEL_PWR
, 1);
282 static void am3517_evm_panel_disable_lcd(struct omap_dss_device
*dssdev
)
284 gpio_set_value(LCD_PANEL_PWR
, 0);
288 static struct panel_generic_dpi_data lcd_panel
= {
290 .platform_enable
= am3517_evm_panel_enable_lcd
,
291 .platform_disable
= am3517_evm_panel_disable_lcd
,
294 static struct omap_dss_device am3517_evm_lcd_device
= {
295 .type
= OMAP_DISPLAY_TYPE_DPI
,
297 .driver_name
= "generic_dpi_panel",
299 .phy
.dpi
.data_lines
= 16,
302 static int am3517_evm_panel_enable_tv(struct omap_dss_device
*dssdev
)
307 static void am3517_evm_panel_disable_tv(struct omap_dss_device
*dssdev
)
311 static struct omap_dss_device am3517_evm_tv_device
= {
312 .type
= OMAP_DISPLAY_TYPE_VENC
,
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
,
320 static int am3517_evm_panel_enable_dvi(struct omap_dss_device
*dssdev
)
323 printk(KERN_ERR
"cannot enable DVI, LCD is enabled\n");
331 static void am3517_evm_panel_disable_dvi(struct omap_dss_device
*dssdev
)
336 static struct panel_generic_dpi_data dvi_panel
= {
338 .platform_enable
= am3517_evm_panel_enable_dvi
,
339 .platform_disable
= am3517_evm_panel_disable_dvi
,
342 static struct omap_dss_device am3517_evm_dvi_device
= {
343 .type
= OMAP_DISPLAY_TYPE_DPI
,
345 .driver_name
= "generic_dpi_panel",
347 .phy
.dpi
.data_lines
= 24,
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
,
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
,
363 * Board initialization
365 static void __init
am3517_evm_init_early(void)
367 omap2_init_common_infrastructure();
368 omap2_init_common_devices(NULL
, NULL
);
371 static struct omap_musb_board_data musb_board_data
= {
372 .interface_type
= MUSB_INTERFACE_ULPI
,
375 .set_phy_power
= am35x_musb_phy_power
,
376 .clear_irq
= am35x_musb_clear_irq
,
377 .set_mode
= am35x_set_mode
,
378 .reset
= am35x_musb_reset
,
381 static __init
void am3517_evm_musb_init(void)
386 * Set up USB clock/mode in the DEVCONF2 register.
388 devconf2
= omap_ctrl_readl(AM35XX_CONTROL_DEVCONF2
);
390 /* USB2.0 PHY reference clock is 13 MHz */
391 devconf2
&= ~(CONF2_REFFREQ
| CONF2_OTGMODE
| CONF2_PHY_GPIOMODE
);
392 devconf2
|= CONF2_REFFREQ_13MHZ
| CONF2_SESENDEN
| CONF2_VBDTCTEN
395 omap_ctrl_writel(devconf2
, AM35XX_CONTROL_DEVCONF2
);
397 usb_musb_init(&musb_board_data
);
400 static const struct usbhs_omap_board_data usbhs_bdata __initconst
= {
401 .port_mode
[0] = OMAP_EHCI_PORT_MODE_PHY
,
402 #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
403 defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
404 .port_mode
[1] = OMAP_USBHS_PORT_MODE_UNUSED
,
406 .port_mode
[1] = OMAP_EHCI_PORT_MODE_PHY
,
408 .port_mode
[2] = OMAP_USBHS_PORT_MODE_UNUSED
,
411 .reset_gpio_port
[0] = 57,
412 .reset_gpio_port
[1] = -EINVAL
,
413 .reset_gpio_port
[2] = -EINVAL
416 #ifdef CONFIG_OMAP_MUX
417 static struct omap_board_mux board_mux
[] __initdata
= {
418 /* USB OTG DRVVBUS offset = 0x212 */
419 OMAP3_MUX(SAD2D_MCAD23
, OMAP_MUX_MODE0
| OMAP_PIN_INPUT_PULLDOWN
),
420 { .reg_offset
= OMAP_MUX_TERMINATOR
},
425 static struct resource am3517_hecc_resources
[] = {
427 .start
= AM35XX_IPSS_HECC_BASE
,
428 .end
= AM35XX_IPSS_HECC_BASE
+ 0x3FFF,
429 .flags
= IORESOURCE_MEM
,
432 .start
= INT_35XX_HECC0_IRQ
,
433 .end
= INT_35XX_HECC0_IRQ
,
434 .flags
= IORESOURCE_IRQ
,
438 static struct platform_device am3517_hecc_device
= {
441 .num_resources
= ARRAY_SIZE(am3517_hecc_resources
),
442 .resource
= am3517_hecc_resources
,
445 static struct ti_hecc_platform_data am3517_evm_hecc_pdata
= {
446 .scc_hecc_offset
= AM35XX_HECC_SCC_HECC_OFFSET
,
447 .scc_ram_offset
= AM35XX_HECC_SCC_RAM_OFFSET
,
448 .hecc_ram_offset
= AM35XX_HECC_RAM_OFFSET
,
449 .mbx_offset
= AM35XX_HECC_MBOX_OFFSET
,
450 .int_line
= AM35XX_HECC_INT_LINE
,
451 .version
= AM35XX_HECC_VERSION
,
454 static void am3517_evm_hecc_init(struct ti_hecc_platform_data
*pdata
)
456 am3517_hecc_device
.dev
.platform_data
= pdata
;
457 platform_device_register(&am3517_hecc_device
);
460 static struct omap_board_config_kernel am3517_evm_config
[] __initdata
= {
463 static void __init
am3517_evm_init(void)
465 omap_board_config
= am3517_evm_config
;
466 omap_board_config_size
= ARRAY_SIZE(am3517_evm_config
);
467 omap3_mux_init(board_mux
, OMAP_PACKAGE_CBB
);
469 am3517_evm_i2c_init();
470 omap_display_init(&am3517_evm_dss_data
);
473 /* Configure GPIO for EHCI port */
474 omap_mux_init_gpio(57, OMAP_PIN_OUTPUT
);
475 usbhs_init(&usbhs_bdata
);
476 am3517_evm_hecc_init(&am3517_evm_hecc_pdata
);
478 am3517_evm_display_init();
481 am3517_evm_rtc_init();
483 i2c_register_board_info(1, am3517evm_i2c1_boardinfo
,
484 ARRAY_SIZE(am3517evm_i2c1_boardinfo
));
486 am3517_evm_ethernet_init(&am3517_evm_emac_pdata
);
489 am3517_evm_musb_init();
492 MACHINE_START(OMAP3517EVM
, "OMAP3517/AM3517 EVM")
493 .atag_offset
= 0x100,
494 .reserve
= omap_reserve
,
495 .map_io
= omap3_map_io
,
496 .init_early
= am3517_evm_init_early
,
497 .init_irq
= omap3_init_irq
,
498 .init_machine
= am3517_evm_init
,
499 .timer
= &omap3_timer
,