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>
36 #include <plat/control.h>
38 #include <plat/display.h>
42 #define AM35XX_EVM_MDIO_FREQUENCY (1000000)
44 static struct mdio_platform_data am3517_evm_mdio_pdata
= {
45 .bus_freq
= AM35XX_EVM_MDIO_FREQUENCY
,
48 static struct resource am3517_mdio_resources
[] = {
50 .start
= AM35XX_IPSS_EMAC_BASE
+ AM35XX_EMAC_MDIO_OFFSET
,
51 .end
= AM35XX_IPSS_EMAC_BASE
+ AM35XX_EMAC_MDIO_OFFSET
+
53 .flags
= IORESOURCE_MEM
,
57 static struct platform_device am3517_mdio_device
= {
58 .name
= "davinci_mdio",
60 .num_resources
= ARRAY_SIZE(am3517_mdio_resources
),
61 .resource
= am3517_mdio_resources
,
62 .dev
.platform_data
= &am3517_evm_mdio_pdata
,
65 static struct emac_platform_data am3517_evm_emac_pdata
= {
69 static struct resource am3517_emac_resources
[] = {
71 .start
= AM35XX_IPSS_EMAC_BASE
,
72 .end
= AM35XX_IPSS_EMAC_BASE
+ 0x2FFFF,
73 .flags
= IORESOURCE_MEM
,
76 .start
= INT_35XX_EMAC_C0_RXTHRESH_IRQ
,
77 .end
= INT_35XX_EMAC_C0_RXTHRESH_IRQ
,
78 .flags
= IORESOURCE_IRQ
,
81 .start
= INT_35XX_EMAC_C0_RX_PULSE_IRQ
,
82 .end
= INT_35XX_EMAC_C0_RX_PULSE_IRQ
,
83 .flags
= IORESOURCE_IRQ
,
86 .start
= INT_35XX_EMAC_C0_TX_PULSE_IRQ
,
87 .end
= INT_35XX_EMAC_C0_TX_PULSE_IRQ
,
88 .flags
= IORESOURCE_IRQ
,
91 .start
= INT_35XX_EMAC_C0_MISC_PULSE_IRQ
,
92 .end
= INT_35XX_EMAC_C0_MISC_PULSE_IRQ
,
93 .flags
= IORESOURCE_IRQ
,
97 static struct platform_device am3517_emac_device
= {
98 .name
= "davinci_emac",
100 .num_resources
= ARRAY_SIZE(am3517_emac_resources
),
101 .resource
= am3517_emac_resources
,
104 static void am3517_enable_ethernet_int(void)
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
);
117 static void am3517_disable_ethernet_int(void)
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
);
128 void am3517_evm_ethernet_init(struct emac_platform_data
*pdata
)
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
);
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
);
156 #define LCD_PANEL_PWR 176
157 #define LCD_PANEL_BKLIGHT_PWR 182
158 #define LCD_PANEL_PWM 181
160 static struct i2c_board_info __initdata am3517evm_i2c1_boardinfo
[] = {
162 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("tca6416", 0x21),
204 .platform_data
= &am3517evm_gpio_expander_info_0
,
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,
212 static struct pca953x_platform_data am3517evm_ui_gpio_expander_info_2
= {
213 .gpio_base
= OMAP_MAX_GPIO_LINES
+ 32,
215 static struct i2c_board_info __initdata am3517evm_i2c3_boardinfo
[] = {
217 I2C_BOARD_INFO("tca6416", 0x20),
218 .platform_data
= &am3517evm_ui_gpio_expander_info_1
,
221 I2C_BOARD_INFO("tca6416", 0x21),
222 .platform_data
= &am3517evm_ui_gpio_expander_info_2
,
226 static int __init
am3517_evm_i2c_init(void)
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
));
237 static int lcd_enabled
;
238 static int dvi_enabled
;
240 #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \
241 defined(CONFIG_PANEL_SHARP_LQ043T1DG01_MODULE)
242 static void __init
am3517_evm_display_init(void)
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
);
250 * Enable GPIO 182 = LCD Backlight Power
252 r
= gpio_request(LCD_PANEL_BKLIGHT_PWR
, "lcd_backlight_pwr");
254 printk(KERN_ERR
"failed to get lcd_backlight_pwr\n");
257 gpio_direction_output(LCD_PANEL_BKLIGHT_PWR
, 1);
259 * Enable GPIO 181 = LCD Panel PWM
261 r
= gpio_request(LCD_PANEL_PWM
, "lcd_pwm");
263 printk(KERN_ERR
"failed to get lcd_pwm\n");
266 gpio_direction_output(LCD_PANEL_PWM
, 1);
268 * Enable GPIO 176 = LCD Panel Power enable pin
270 r
= gpio_request(LCD_PANEL_PWR
, "lcd_panel_pwr");
272 printk(KERN_ERR
"failed to get lcd_panel_pwr\n");
275 gpio_direction_output(LCD_PANEL_PWR
, 1);
277 printk(KERN_INFO
"Display initialized successfully\n");
281 gpio_free(LCD_PANEL_PWM
);
283 gpio_free(LCD_PANEL_BKLIGHT_PWR
);
286 static void __init
am3517_evm_display_init(void) {}
289 static int am3517_evm_panel_enable_lcd(struct omap_dss_device
*dssdev
)
292 printk(KERN_ERR
"cannot enable LCD, DVI is enabled\n");
295 gpio_set_value(LCD_PANEL_PWR
, 1);
301 static void am3517_evm_panel_disable_lcd(struct omap_dss_device
*dssdev
)
303 gpio_set_value(LCD_PANEL_PWR
, 0);
307 static struct omap_dss_device am3517_evm_lcd_device
= {
308 .type
= OMAP_DISPLAY_TYPE_DPI
,
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
,
316 static int am3517_evm_panel_enable_tv(struct omap_dss_device
*dssdev
)
321 static void am3517_evm_panel_disable_tv(struct omap_dss_device
*dssdev
)
325 static struct omap_dss_device am3517_evm_tv_device
= {
326 .type
= OMAP_DISPLAY_TYPE_VENC
,
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
,
334 static int am3517_evm_panel_enable_dvi(struct omap_dss_device
*dssdev
)
337 printk(KERN_ERR
"cannot enable DVI, LCD is enabled\n");
345 static void am3517_evm_panel_disable_dvi(struct omap_dss_device
*dssdev
)
350 static struct omap_dss_device am3517_evm_dvi_device
= {
351 .type
= OMAP_DISPLAY_TYPE_DPI
,
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
,
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
,
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
,
371 struct platform_device am3517_evm_dss_device
= {
375 .platform_data
= &am3517_evm_dss_data
,
380 * Board initialization
382 static struct omap_board_config_kernel am3517_evm_config
[] __initdata
= {
385 static struct platform_device
*am3517_evm_devices
[] __initdata
= {
386 &am3517_evm_dss_device
,
389 static void __init
am3517_evm_init_irq(void)
391 omap_board_config
= am3517_evm_config
;
392 omap_board_config_size
= ARRAY_SIZE(am3517_evm_config
);
394 omap2_init_common_hw(NULL
, NULL
);
399 static struct omap_musb_board_data musb_board_data
= {
400 .interface_type
= MUSB_INTERFACE_ULPI
,
405 static __init
void am3517_evm_musb_init(void)
410 * Set up USB clock/mode in the DEVCONF2 register.
412 devconf2
= omap_ctrl_readl(AM35XX_CONTROL_DEVCONF2
);
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
419 omap_ctrl_writel(devconf2
, AM35XX_CONTROL_DEVCONF2
);
421 usb_musb_init(&musb_board_data
);
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
,
430 .port_mode
[1] = EHCI_HCD_OMAP_MODE_PHY
,
432 .port_mode
[2] = EHCI_HCD_OMAP_MODE_UNKNOWN
,
435 .reset_gpio_port
[0] = 57,
436 .reset_gpio_port
[1] = -EINVAL
,
437 .reset_gpio_port
[2] = -EINVAL
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
},
447 #define board_mux NULL
451 static struct resource am3517_hecc_resources
[] = {
453 .start
= AM35XX_IPSS_HECC_BASE
,
454 .end
= AM35XX_IPSS_HECC_BASE
+ 0x3FFF,
455 .flags
= IORESOURCE_MEM
,
458 .start
= INT_35XX_HECC0_IRQ
,
459 .end
= INT_35XX_HECC0_IRQ
,
460 .flags
= IORESOURCE_IRQ
,
464 static struct platform_device am3517_hecc_device
= {
467 .num_resources
= ARRAY_SIZE(am3517_hecc_resources
),
468 .resource
= am3517_hecc_resources
,
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
,
480 static void am3517_evm_hecc_init(struct ti_hecc_platform_data
*pdata
)
482 am3517_hecc_device
.dev
.platform_data
= pdata
;
483 platform_device_register(&am3517_hecc_device
);
486 static void __init
am3517_evm_init(void)
488 omap3_mux_init(board_mux
, OMAP_PACKAGE_CBB
);
490 am3517_evm_i2c_init();
491 platform_add_devices(am3517_evm_devices
,
492 ARRAY_SIZE(am3517_evm_devices
));
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
);
501 am3517_evm_display_init();
504 am3517_evm_rtc_init();
506 i2c_register_board_info(1, am3517evm_i2c1_boardinfo
,
507 ARRAY_SIZE(am3517evm_i2c1_boardinfo
));
509 am3517_evm_ethernet_init(&am3517_evm_emac_pdata
);
512 am3517_evm_musb_init();
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
,