1 /*
2 * mach-imx27_visstrim_m10.c
3 *
4 * Copyright 2010 Javier Martin <javier.martin@vista-silicon.com>
5 *
6 * Based on mach-pcm038.c, mach-pca100.c, mach-mx27ads.c and others.
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 *
13 * This program is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
17 *
18 * You should have received a copy of the GNU General Public License
19 * along with this program; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
21 * MA 02110-1301, USA.
22 */
23
24 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
25
26 #include <linux/platform_device.h>
27 #include <linux/mtd/physmap.h>
28 #include <linux/i2c.h>
29 #include <linux/i2c/pca953x.h>
30 #include <linux/input.h>
31 #include <linux/gpio.h>
32 #include <linux/delay.h>
33 #include <sound/tlv320aic32x4.h>
34 #include <asm/mach-types.h>
35 #include <asm/mach/arch.h>
36 #include <asm/mach/time.h>
37 #include <mach/common.h>
38 #include <mach/iomux-mx27.h>
39
40 #include "devices-imx27.h"
41
42 #define OTG_PHY_CS_GPIO (GPIO_PORTF + 17)
43 #define SDHC1_IRQ IRQ_GPIOB(25)
44
45 static const int visstrim_m10_pins[] __initconst = {
46 /* UART1 (console) */
47 PE12_PF_UART1_TXD,
48 PE13_PF_UART1_RXD,
49 PE14_PF_UART1_CTS,
50 PE15_PF_UART1_RTS,
51 /* FEC */
52 PD0_AIN_FEC_TXD0,
53 PD1_AIN_FEC_TXD1,
54 PD2_AIN_FEC_TXD2,
55 PD3_AIN_FEC_TXD3,
56 PD4_AOUT_FEC_RX_ER,
57 PD5_AOUT_FEC_RXD1,
58 PD6_AOUT_FEC_RXD2,
59 PD7_AOUT_FEC_RXD3,
60 PD8_AF_FEC_MDIO,
61 PD9_AIN_FEC_MDC,
62 PD10_AOUT_FEC_CRS,
63 PD11_AOUT_FEC_TX_CLK,
64 PD12_AOUT_FEC_RXD0,
65 PD13_AOUT_FEC_RX_DV,
66 PD14_AOUT_FEC_RX_CLK,
67 PD15_AOUT_FEC_COL,
68 PD16_AIN_FEC_TX_ER,
69 PF23_AIN_FEC_TX_EN,
70 /* SSI1 */
71 PC20_PF_SSI1_FS,
72 PC21_PF_SSI1_RXD,
73 PC22_PF_SSI1_TXD,
74 PC23_PF_SSI1_CLK,
75 /* SDHC1 */
76 PE18_PF_SD1_D0,
77 PE19_PF_SD1_D1,
78 PE20_PF_SD1_D2,
79 PE21_PF_SD1_D3,
80 PE22_PF_SD1_CMD,
81 PE23_PF_SD1_CLK,
82 /* Both I2Cs */
83 PD17_PF_I2C_DATA,
84 PD18_PF_I2C_CLK,
85 PC5_PF_I2C2_SDA,
86 PC6_PF_I2C2_SCL,
87 /* USB OTG */
88 OTG_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT,
89 PC9_PF_USBOTG_DATA0,
90 PC11_PF_USBOTG_DATA1,
91 PC10_PF_USBOTG_DATA2,
92 PC13_PF_USBOTG_DATA3,
93 PC12_PF_USBOTG_DATA4,
94 PC7_PF_USBOTG_DATA5,
95 PC8_PF_USBOTG_DATA6,
96 PE25_PF_USBOTG_DATA7,
97 PE24_PF_USBOTG_CLK,
98 PE2_PF_USBOTG_DIR,
99 PE0_PF_USBOTG_NXT,
100 PE1_PF_USBOTG_STP,
101 PB23_PF_USB_PWR,
102 PB24_PF_USB_OC,
103 };
104
105 /* GPIOs used as events for applications */
106 static struct gpio_keys_button visstrim_gpio_keys[] = {
107 {
108 .type = EV_KEY,
109 .code = KEY_RESTART,
110 .gpio = (GPIO_PORTC + 15),
111 .desc = "Default config",
112 .active_low = 0,
113 .wakeup = 1,
114 },
115 {
116 .type = EV_KEY,
117 .code = KEY_RECORD,
118 .gpio = (GPIO_PORTF + 14),
119 .desc = "Record",
120 .active_low = 0,
121 .wakeup = 1,
122 },
123 {
124 .type = EV_KEY,
125 .code = KEY_STOP,
126 .gpio = (GPIO_PORTF + 13),
127 .desc = "Stop",
128 .active_low = 0,
129 .wakeup = 1,
130 }
131 };
132
133 static const struct gpio_keys_platform_data
134 visstrim_gpio_keys_platform_data __initconst = {
135 .buttons = visstrim_gpio_keys,
136 .nbuttons = ARRAY_SIZE(visstrim_gpio_keys),
137 };
138
139 /* Visstrim_SM10 has a microSD slot connected to sdhc1 */
visstrim_m10_sdhc1_init(struct device * dev,irq_handler_t detect_irq,void * data)140 static int visstrim_m10_sdhc1_init(struct device *dev,
141 irq_handler_t detect_irq, void *data)
142 {
143 int ret;
144
145 ret = request_irq(SDHC1_IRQ, detect_irq, IRQF_TRIGGER_FALLING,
146 "mmc-detect", data);
147 return ret;
148 }
149
visstrim_m10_sdhc1_exit(struct device * dev,void * data)150 static void visstrim_m10_sdhc1_exit(struct device *dev, void *data)
151 {
152 free_irq(SDHC1_IRQ, data);
153 }
154
155 static const struct imxmmc_platform_data visstrim_m10_sdhc_pdata __initconst = {
156 .init = visstrim_m10_sdhc1_init,
157 .exit = visstrim_m10_sdhc1_exit,
158 };
159
160 /* Visstrim_SM10 NOR flash */
161 static struct physmap_flash_data visstrim_m10_flash_data = {
162 .width = 2,
163 };
164
165 static struct resource visstrim_m10_flash_resource = {
166 .start = 0xc0000000,
167 .end = 0xc0000000 + SZ_64M - 1,
168 .flags = IORESOURCE_MEM,
169 };
170
171 static struct platform_device visstrim_m10_nor_mtd_device = {
172 .name = "physmap-flash",
173 .id = 0,
174 .dev = {
175 .platform_data = &visstrim_m10_flash_data,
176 },
177 .num_resources = 1,
178 .resource = &visstrim_m10_flash_resource,
179 };
180
181 static struct platform_device *platform_devices[] __initdata = {
182 &visstrim_m10_nor_mtd_device,
183 };
184
185 /* Visstrim_M10 uses UART0 as console */
186 static const struct imxuart_platform_data uart_pdata __initconst = {
187 .flags = IMXUART_HAVE_RTSCTS,
188 };
189
190 /* I2C */
191 static const struct imxi2c_platform_data visstrim_m10_i2c_data __initconst = {
192 .bitrate = 100000,
193 };
194
195 static struct pca953x_platform_data visstrim_m10_pca9555_pdata = {
196 .gpio_base = 240, /* After MX27 internal GPIOs */
197 .invert = 0,
198 };
199
200 static struct aic32x4_pdata visstrim_m10_aic32x4_pdata = {
201 .power_cfg = AIC32X4_PWR_MICBIAS_2075_LDOIN |
202 AIC32X4_PWR_AVDD_DVDD_WEAK_DISABLE |
203 AIC32X4_PWR_AIC32X4_LDO_ENABLE |
204 AIC32X4_PWR_CMMODE_LDOIN_RANGE_18_36 |
205 AIC32X4_PWR_CMMODE_HP_LDOIN_POWERED,
206 .micpga_routing = AIC32X4_MICPGA_ROUTE_LMIC_IN2R_10K |
207 AIC32X4_MICPGA_ROUTE_RMIC_IN1L_10K,
208 .swapdacs = false,
209 };
210
211 static struct i2c_board_info visstrim_m10_i2c_devices[] = {
212 {
213 I2C_BOARD_INFO("pca9555", 0x20),
214 .platform_data = &visstrim_m10_pca9555_pdata,
215 },
216 {
217 I2C_BOARD_INFO("tlv320aic32x4", 0x18),
218 .platform_data = &visstrim_m10_aic32x4_pdata,
219 }
220 };
221
222 /* USB OTG */
otg_phy_init(struct platform_device * pdev)223 static int otg_phy_init(struct platform_device *pdev)
224 {
225 gpio_set_value(OTG_PHY_CS_GPIO, 0);
226
227 mdelay(10);
228
229 return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED);
230 }
231
232 static const struct mxc_usbh_platform_data
233 visstrim_m10_usbotg_pdata __initconst = {
234 .init = otg_phy_init,
235 .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT,
236 };
237
238 /* SSI */
239 static const struct imx_ssi_platform_data visstrim_m10_ssi_pdata __initconst = {
240 .flags = IMX_SSI_DMA | IMX_SSI_SYN,
241 };
242
visstrim_m10_board_init(void)243 static void __init visstrim_m10_board_init(void)
244 {
245 int ret;
246
247 imx27_soc_init();
248
249 ret = mxc_gpio_setup_multiple_pins(visstrim_m10_pins,
250 ARRAY_SIZE(visstrim_m10_pins), "VISSTRIM_M10");
251 if (ret)
252 pr_err("Failed to setup pins (%d)\n", ret);
253
254 imx27_add_imx_ssi(0, &visstrim_m10_ssi_pdata);
255 imx27_add_imx_uart0(&uart_pdata);
256
257 i2c_register_board_info(0, visstrim_m10_i2c_devices,
258 ARRAY_SIZE(visstrim_m10_i2c_devices));
259 imx27_add_imx_i2c(0, &visstrim_m10_i2c_data);
260 imx27_add_imx_i2c(1, &visstrim_m10_i2c_data);
261 imx27_add_mxc_mmc(0, &visstrim_m10_sdhc_pdata);
262 imx27_add_mxc_ehci_otg(&visstrim_m10_usbotg_pdata);
263 imx27_add_fec(NULL);
264 imx_add_gpio_keys(&visstrim_gpio_keys_platform_data);
265 platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
266 }
267
visstrim_m10_timer_init(void)268 static void __init visstrim_m10_timer_init(void)
269 {
270 mx27_clocks_init((unsigned long)25000000);
271 }
272
273 static struct sys_timer visstrim_m10_timer = {
274 .init = visstrim_m10_timer_init,
275 };
276
277 MACHINE_START(IMX27_VISSTRIM_M10, "Vista Silicon Visstrim_M10")
278 .atag_offset = 0x100,
279 .map_io = mx27_map_io,
280 .init_early = imx27_init_early,
281 .init_irq = mx27_init_irq,
282 .handle_irq = imx27_handle_irq,
283 .timer = &visstrim_m10_timer,
284 .init_machine = visstrim_m10_board_init,
285 .restart = mxc_restart,
286 MACHINE_END
287