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Mark A. Greer85937902009-06-03 18:41:53 -07001/*
2 * TI DA830/OMAP L137 EVM board
3 *
4 * Author: Mark A. Greer <mgreer@mvista.com>
5 * Derived from: arch/arm/mach-davinci/board-dm644x-evm.c
6 *
7 * 2007, 2009 (c) MontaVista Software, Inc. This file is licensed under
8 * the terms of the GNU General Public License version 2. This program
9 * is licensed "as is" without any warranty of any kind, whether express
10 * or implied.
11 */
12#include <linux/kernel.h>
13#include <linux/module.h>
14#include <linux/init.h>
15#include <linux/console.h>
Sergei Shtylyov0e9a3dd2009-09-25 23:28:13 +040016#include <linux/interrupt.h>
Steve Chen13e1f042009-09-15 18:15:06 -070017#include <linux/gpio.h>
Mark A. Greer85937902009-06-03 18:41:53 -070018#include <linux/i2c.h>
Steve Chen13e1f042009-09-15 18:15:06 -070019#include <linux/i2c/pcf857x.h>
Mark A. Greer85937902009-06-03 18:41:53 -070020#include <linux/i2c/at24.h>
21
22#include <asm/mach-types.h>
23#include <asm/mach/arch.h>
24
25#include <mach/common.h>
26#include <mach/irqs.h>
27#include <mach/cp_intc.h>
Mark A. Greer32bf0782009-08-28 15:05:21 -070028#include <mach/mux.h>
David A. Griego2eb30c82009-09-15 18:10:20 -070029#include <mach/gpio.h>
Mark A. Greer85937902009-06-03 18:41:53 -070030#include <mach/da8xx.h>
Chaithrika U Se33ef5e2009-08-11 17:01:59 -040031#include <mach/asp.h>
Sergei Shtylyov0e9a3dd2009-09-25 23:28:13 +040032#include <mach/usb.h>
Mark A. Greer85937902009-06-03 18:41:53 -070033
34#define DA830_EVM_PHY_MASK 0x0
35#define DA830_EVM_MDIO_FREQUENCY 2200000 /* PHY bus frequency */
36
37static struct at24_platform_data da830_evm_i2c_eeprom_info = {
38 .byte_len = SZ_256K / 8,
39 .page_size = 64,
40 .flags = AT24_FLAG_ADDR16,
41 .setup = davinci_get_mac_addr,
42 .context = (void *)0x7f00,
43};
44
Steve Chen13e1f042009-09-15 18:15:06 -070045static int da830_evm_ui_expander_setup(struct i2c_client *client, int gpio,
46 unsigned ngpio, void *context)
47{
48 gpio_request(gpio + 6, "MUX_MODE");
49#ifdef CONFIG_DA830_UI_LCD
50 gpio_direction_output(gpio + 6, 0);
51#else /* Must be NAND or NOR */
52 gpio_direction_output(gpio + 6, 1);
53#endif
54 return 0;
55}
56
57static int da830_evm_ui_expander_teardown(struct i2c_client *client, int gpio,
58 unsigned ngpio, void *context)
59{
60 gpio_free(gpio + 6);
61 return 0;
62}
63
64static struct pcf857x_platform_data da830_evm_ui_expander_info = {
65 .gpio_base = DAVINCI_N_GPIO,
66 .setup = da830_evm_ui_expander_setup,
67 .teardown = da830_evm_ui_expander_teardown,
68};
69
Mark A. Greer85937902009-06-03 18:41:53 -070070static struct i2c_board_info __initdata da830_evm_i2c_devices[] = {
71 {
72 I2C_BOARD_INFO("24c256", 0x50),
73 .platform_data = &da830_evm_i2c_eeprom_info,
74 },
Chaithrika U S1a7ff8f2009-08-25 15:20:05 +030075 {
76 I2C_BOARD_INFO("tlv320aic3x", 0x18),
Steve Chen13e1f042009-09-15 18:15:06 -070077 },
78 {
79 I2C_BOARD_INFO("pcf8574", 0x3f),
80 .platform_data = &da830_evm_ui_expander_info,
81 },
Mark A. Greer85937902009-06-03 18:41:53 -070082};
83
84static struct davinci_i2c_platform_data da830_evm_i2c_0_pdata = {
85 .bus_freq = 100, /* kHz */
86 .bus_delay = 0, /* usec */
87};
88
Sergei Shtylyov0e9a3dd2009-09-25 23:28:13 +040089/*
90 * USB1 VBUS is controlled by GPIO1[15], over-current is reported on GPIO2[4].
91 */
92#define ON_BD_USB_DRV GPIO_TO_PIN(1, 15)
93#define ON_BD_USB_OVC GPIO_TO_PIN(2, 4)
94
95static const short da830_evm_usb11_pins[] = {
96 DA830_GPIO1_15, DA830_GPIO2_4,
97 -1
98};
99
100static da8xx_ocic_handler_t da830_evm_usb_ocic_handler;
101
102static int da830_evm_usb_set_power(unsigned port, int on)
103{
104 gpio_set_value(ON_BD_USB_DRV, on);
105 return 0;
106}
107
108static int da830_evm_usb_get_power(unsigned port)
109{
110 return gpio_get_value(ON_BD_USB_DRV);
111}
112
113static int da830_evm_usb_get_oci(unsigned port)
114{
115 return !gpio_get_value(ON_BD_USB_OVC);
116}
117
118static irqreturn_t da830_evm_usb_ocic_irq(int, void *);
119
120static int da830_evm_usb_ocic_notify(da8xx_ocic_handler_t handler)
121{
122 int irq = gpio_to_irq(ON_BD_USB_OVC);
123 int error = 0;
124
125 if (handler != NULL) {
126 da830_evm_usb_ocic_handler = handler;
127
128 error = request_irq(irq, da830_evm_usb_ocic_irq, IRQF_DISABLED |
129 IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
130 "OHCI over-current indicator", NULL);
131 if (error)
132 printk(KERN_ERR "%s: could not request IRQ to watch "
133 "over-current indicator changes\n", __func__);
134 } else
135 free_irq(irq, NULL);
136
137 return error;
138}
139
140static struct da8xx_ohci_root_hub da830_evm_usb11_pdata = {
141 .set_power = da830_evm_usb_set_power,
142 .get_power = da830_evm_usb_get_power,
143 .get_oci = da830_evm_usb_get_oci,
144 .ocic_notify = da830_evm_usb_ocic_notify,
145
146 /* TPS2065 switch @ 5V */
147 .potpgt = (3 + 1) / 2, /* 3 ms max */
148};
149
150static irqreturn_t da830_evm_usb_ocic_irq(int irq, void *dev_id)
151{
152 da830_evm_usb_ocic_handler(&da830_evm_usb11_pdata, 1);
153 return IRQ_HANDLED;
154}
155
156static __init void da830_evm_usb_init(void)
157{
158 u32 cfgchip2;
159 int ret;
160
161 /*
162 * Set up USB clock/mode in the CFGCHIP2 register.
163 * FYI: CFGCHIP2 is 0x0000ef00 initially.
164 */
165 cfgchip2 = __raw_readl(DA8XX_SYSCFG_VIRT(DA8XX_CFGCHIP2_REG));
166
167 /* USB2.0 PHY reference clock is 24 MHz */
168 cfgchip2 &= ~CFGCHIP2_REFFREQ;
169 cfgchip2 |= CFGCHIP2_REFFREQ_24MHZ;
170
171 /*
172 * Select internal reference clock for USB 2.0 PHY
173 * and use it as a clock source for USB 1.1 PHY
174 * (this is the default setting anyway).
175 */
176 cfgchip2 &= ~CFGCHIP2_USB1PHYCLKMUX;
177 cfgchip2 |= CFGCHIP2_USB2PHYCLKMUX;
178
179 __raw_writel(cfgchip2, DA8XX_SYSCFG_VIRT(DA8XX_CFGCHIP2_REG));
180
181 ret = da8xx_pinmux_setup(da830_evm_usb11_pins);
182 if (ret) {
183 pr_warning("%s: USB 1.1 PinMux setup failed: %d\n",
184 __func__, ret);
185 return;
186 }
187
188 ret = gpio_request(ON_BD_USB_DRV, "ON_BD_USB_DRV");
189 if (ret) {
190 printk(KERN_ERR "%s: failed to request GPIO for USB 1.1 port "
191 "power control: %d\n", __func__, ret);
192 return;
193 }
194 gpio_direction_output(ON_BD_USB_DRV, 0);
195
196 ret = gpio_request(ON_BD_USB_OVC, "ON_BD_USB_OVC");
197 if (ret) {
198 printk(KERN_ERR "%s: failed to request GPIO for USB 1.1 port "
199 "over-current indicator: %d\n", __func__, ret);
200 return;
201 }
202 gpio_direction_input(ON_BD_USB_OVC);
203
204 ret = da8xx_register_usb11(&da830_evm_usb11_pdata);
205 if (ret)
206 pr_warning("%s: USB 1.1 registration failed: %d\n",
207 __func__, ret);
208}
209
Mark A. Greer85937902009-06-03 18:41:53 -0700210static struct davinci_uart_config da830_evm_uart_config __initdata = {
211 .enabled_uarts = 0x7,
212};
213
Mark A. Greer32bf0782009-08-28 15:05:21 -0700214static const short da830_evm_mcasp1_pins[] = {
215 DA830_AHCLKX1, DA830_ACLKX1, DA830_AFSX1, DA830_AHCLKR1, DA830_AFSR1,
216 DA830_AMUTE1, DA830_AXR1_0, DA830_AXR1_1, DA830_AXR1_2, DA830_AXR1_5,
217 DA830_ACLKR1, DA830_AXR1_6, DA830_AXR1_7, DA830_AXR1_8, DA830_AXR1_10,
218 DA830_AXR1_11,
219 -1
220};
221
Chaithrika U Se33ef5e2009-08-11 17:01:59 -0400222static u8 da830_iis_serializer_direction[] = {
223 RX_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
224 INACTIVE_MODE, TX_MODE, INACTIVE_MODE, INACTIVE_MODE,
225 INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE, INACTIVE_MODE,
226};
227
228static struct snd_platform_data da830_evm_snd_data = {
229 .tx_dma_offset = 0x2000,
230 .rx_dma_offset = 0x2000,
231 .op_mode = DAVINCI_MCASP_IIS_MODE,
232 .num_serializer = ARRAY_SIZE(da830_iis_serializer_direction),
233 .tdm_slots = 2,
234 .serial_dir = da830_iis_serializer_direction,
235 .eventq_no = EVENTQ_0,
236 .version = MCASP_VERSION_2,
237 .txnumevt = 1,
238 .rxnumevt = 1,
239};
240
David A. Griego2eb30c82009-09-15 18:10:20 -0700241/*
242 * GPIO2[1] is used as MMC_SD_WP and GPIO2[2] as MMC_SD_INS.
243 */
244static const short da830_evm_mmc_sd_pins[] = {
245 DA830_MMCSD_DAT_0, DA830_MMCSD_DAT_1, DA830_MMCSD_DAT_2,
246 DA830_MMCSD_DAT_3, DA830_MMCSD_DAT_4, DA830_MMCSD_DAT_5,
247 DA830_MMCSD_DAT_6, DA830_MMCSD_DAT_7, DA830_MMCSD_CLK,
248 DA830_MMCSD_CMD, DA830_GPIO2_1, DA830_GPIO2_2,
249 -1
250};
251
252#define DA830_MMCSD_WP_PIN GPIO_TO_PIN(2, 1)
253
254static int da830_evm_mmc_get_ro(int index)
255{
256 return gpio_get_value(DA830_MMCSD_WP_PIN);
257}
258
259static struct davinci_mmc_config da830_evm_mmc_config = {
260 .get_ro = da830_evm_mmc_get_ro,
261 .wires = 4,
262 .version = MMC_CTLR_VERSION_2,
263};
264
265static inline void da830_evm_init_mmc(void)
266{
267 int ret;
268
269 ret = da8xx_pinmux_setup(da830_evm_mmc_sd_pins);
270 if (ret) {
271 pr_warning("da830_evm_init: mmc/sd mux setup failed: %d\n",
272 ret);
273 return;
274 }
275
276 ret = gpio_request(DA830_MMCSD_WP_PIN, "MMC WP");
277 if (ret) {
278 pr_warning("da830_evm_init: can not open GPIO %d\n",
279 DA830_MMCSD_WP_PIN);
280 return;
281 }
282 gpio_direction_input(DA830_MMCSD_WP_PIN);
283
284 ret = da8xx_register_mmcsd0(&da830_evm_mmc_config);
285 if (ret) {
286 pr_warning("da830_evm_init: mmc/sd registration failed: %d\n",
287 ret);
288 gpio_free(DA830_MMCSD_WP_PIN);
289 }
290}
291
Mark A. Greer85937902009-06-03 18:41:53 -0700292static __init void da830_evm_init(void)
293{
294 struct davinci_soc_info *soc_info = &davinci_soc_info;
295 int ret;
296
297 ret = da8xx_register_edma();
298 if (ret)
299 pr_warning("da830_evm_init: edma registration failed: %d\n",
300 ret);
301
Sudhakar Rajashekharac96b56c2009-07-16 05:45:32 -0400302 ret = da8xx_pinmux_setup(da830_i2c0_pins);
Mark A. Greer85937902009-06-03 18:41:53 -0700303 if (ret)
304 pr_warning("da830_evm_init: i2c0 mux setup failed: %d\n",
305 ret);
306
307 ret = da8xx_register_i2c(0, &da830_evm_i2c_0_pdata);
308 if (ret)
309 pr_warning("da830_evm_init: i2c0 registration failed: %d\n",
310 ret);
311
Sergei Shtylyov0e9a3dd2009-09-25 23:28:13 +0400312 da830_evm_usb_init();
313
Mark A. Greer85937902009-06-03 18:41:53 -0700314 soc_info->emac_pdata->phy_mask = DA830_EVM_PHY_MASK;
315 soc_info->emac_pdata->mdio_max_freq = DA830_EVM_MDIO_FREQUENCY;
316 soc_info->emac_pdata->rmii_en = 1;
317
Sudhakar Rajashekharac96b56c2009-07-16 05:45:32 -0400318 ret = da8xx_pinmux_setup(da830_cpgmac_pins);
Mark A. Greer85937902009-06-03 18:41:53 -0700319 if (ret)
320 pr_warning("da830_evm_init: cpgmac mux setup failed: %d\n",
321 ret);
322
323 ret = da8xx_register_emac();
324 if (ret)
325 pr_warning("da830_evm_init: emac registration failed: %d\n",
326 ret);
327
328 ret = da8xx_register_watchdog();
329 if (ret)
330 pr_warning("da830_evm_init: watchdog registration failed: %d\n",
331 ret);
332
333 davinci_serial_init(&da830_evm_uart_config);
334 i2c_register_board_info(1, da830_evm_i2c_devices,
335 ARRAY_SIZE(da830_evm_i2c_devices));
Chaithrika U Se33ef5e2009-08-11 17:01:59 -0400336
Mark A. Greer32bf0782009-08-28 15:05:21 -0700337 ret = da8xx_pinmux_setup(da830_evm_mcasp1_pins);
Chaithrika U Se33ef5e2009-08-11 17:01:59 -0400338 if (ret)
339 pr_warning("da830_evm_init: mcasp1 mux setup failed: %d\n",
340 ret);
341
Mark A. Greerb8864aa2009-08-28 15:05:02 -0700342 da8xx_register_mcasp(1, &da830_evm_snd_data);
David A. Griego2eb30c82009-09-15 18:10:20 -0700343
344 da830_evm_init_mmc();
Steve Chen13e1f042009-09-15 18:15:06 -0700345
346#ifdef CONFIG_DA830_UI_LCD
347 ret = da8xx_pinmux_setup(da830_lcdcntl_pins);
348 if (ret)
349 pr_warning("da830_evm_init: lcdcntl mux setup failed: %d\n",
350 ret);
351
352 ret = da8xx_register_lcdc(&sharp_lcd035q3dg01_pdata);
353 if (ret)
354 pr_warning("da830_evm_init: lcd setup failed: %d\n", ret);
355#endif
Mark A. Greerc51df702009-09-15 18:15:54 -0700356
357 ret = da8xx_register_rtc();
358 if (ret)
359 pr_warning("da830_evm_init: rtc setup failed: %d\n", ret);
Mark A. Greer85937902009-06-03 18:41:53 -0700360}
361
362#ifdef CONFIG_SERIAL_8250_CONSOLE
363static int __init da830_evm_console_init(void)
364{
365 return add_preferred_console("ttyS", 2, "115200");
366}
367console_initcall(da830_evm_console_init);
368#endif
369
370static __init void da830_evm_irq_init(void)
371{
372 struct davinci_soc_info *soc_info = &davinci_soc_info;
373
374 cp_intc_init((void __iomem *)DA8XX_CP_INTC_VIRT, DA830_N_CP_INTC_IRQ,
375 soc_info->intc_irq_prios);
376}
377
378static void __init da830_evm_map_io(void)
379{
380 da830_init();
381}
382
Kevin Hilmanbaf09a42009-07-08 08:32:27 -0700383MACHINE_START(DAVINCI_DA830_EVM, "DaVinci DA830/OMAP L137 EVM")
Mark A. Greer85937902009-06-03 18:41:53 -0700384 .phys_io = IO_PHYS,
385 .io_pg_offst = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc,
386 .boot_params = (DA8XX_DDR_BASE + 0x100),
387 .map_io = da830_evm_map_io,
388 .init_irq = da830_evm_irq_init,
389 .timer = &davinci_timer,
390 .init_machine = da830_evm_init,
391MACHINE_END