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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/gpio_keys.h> | |
31 | #include <linux/input.h> | |
32 | #include <linux/gpio.h> | |
33 | #include <asm/mach-types.h> | |
34 | #include <asm/mach/arch.h> | |
35 | #include <asm/mach/time.h> | |
36 | #include <mach/common.h> | |
3b161e51 | 37 | #include <mach/iomux.h> |
3b161e51 JM |
38 | |
39 | #include "devices-imx27.h" | |
3b161e51 JM |
40 | |
41 | #define OTG_PHY_CS_GPIO (GPIO_PORTF + 17) | |
42 | #define SDHC1_IRQ IRQ_GPIOB(25) | |
43 | ||
6c80ee51 | 44 | static const int visstrim_m10_pins[] __initconst = { |
3b161e51 JM |
45 | /* UART1 (console) */ |
46 | PE12_PF_UART1_TXD, | |
47 | PE13_PF_UART1_RXD, | |
48 | PE14_PF_UART1_CTS, | |
49 | PE15_PF_UART1_RTS, | |
50 | /* FEC */ | |
51 | PD0_AIN_FEC_TXD0, | |
52 | PD1_AIN_FEC_TXD1, | |
53 | PD2_AIN_FEC_TXD2, | |
54 | PD3_AIN_FEC_TXD3, | |
55 | PD4_AOUT_FEC_RX_ER, | |
56 | PD5_AOUT_FEC_RXD1, | |
57 | PD6_AOUT_FEC_RXD2, | |
58 | PD7_AOUT_FEC_RXD3, | |
59 | PD8_AF_FEC_MDIO, | |
60 | PD9_AIN_FEC_MDC, | |
61 | PD10_AOUT_FEC_CRS, | |
62 | PD11_AOUT_FEC_TX_CLK, | |
63 | PD12_AOUT_FEC_RXD0, | |
64 | PD13_AOUT_FEC_RX_DV, | |
65 | PD14_AOUT_FEC_RX_CLK, | |
66 | PD15_AOUT_FEC_COL, | |
67 | PD16_AIN_FEC_TX_ER, | |
68 | PF23_AIN_FEC_TX_EN, | |
69 | /* SDHC1 */ | |
70 | PE18_PF_SD1_D0, | |
71 | PE19_PF_SD1_D1, | |
72 | PE20_PF_SD1_D2, | |
73 | PE21_PF_SD1_D3, | |
74 | PE22_PF_SD1_CMD, | |
75 | PE23_PF_SD1_CLK, | |
76 | /* Both I2Cs */ | |
77 | PD17_PF_I2C_DATA, | |
78 | PD18_PF_I2C_CLK, | |
79 | PC5_PF_I2C2_SDA, | |
80 | PC6_PF_I2C2_SCL, | |
81 | /* USB OTG */ | |
82 | OTG_PHY_CS_GPIO | GPIO_GPIO | GPIO_OUT, | |
83 | PC9_PF_USBOTG_DATA0, | |
84 | PC11_PF_USBOTG_DATA1, | |
85 | PC10_PF_USBOTG_DATA2, | |
86 | PC13_PF_USBOTG_DATA3, | |
87 | PC12_PF_USBOTG_DATA4, | |
88 | PC7_PF_USBOTG_DATA5, | |
89 | PC8_PF_USBOTG_DATA6, | |
90 | PE25_PF_USBOTG_DATA7, | |
91 | PE24_PF_USBOTG_CLK, | |
92 | PE2_PF_USBOTG_DIR, | |
93 | PE0_PF_USBOTG_NXT, | |
94 | PE1_PF_USBOTG_STP, | |
95 | PB23_PF_USB_PWR, | |
96 | PB24_PF_USB_OC, | |
97 | }; | |
98 | ||
99 | /* GPIOs used as events for applications */ | |
100 | static struct gpio_keys_button visstrim_gpio_keys[] = { | |
101 | { | |
102 | .type = EV_KEY, | |
103 | .code = KEY_RESTART, | |
104 | .gpio = (GPIO_PORTC + 15), | |
105 | .desc = "Default config", | |
106 | .active_low = 0, | |
107 | .wakeup = 1, | |
108 | }, | |
109 | { | |
110 | .type = EV_KEY, | |
111 | .code = KEY_RECORD, | |
112 | .gpio = (GPIO_PORTF + 14), | |
113 | .desc = "Record", | |
114 | .active_low = 0, | |
115 | .wakeup = 1, | |
116 | }, | |
117 | { | |
118 | .type = EV_KEY, | |
119 | .code = KEY_STOP, | |
120 | .gpio = (GPIO_PORTF + 13), | |
121 | .desc = "Stop", | |
122 | .active_low = 0, | |
123 | .wakeup = 1, | |
124 | } | |
125 | }; | |
126 | ||
127 | static struct gpio_keys_platform_data visstrim_gpio_keys_platform_data = { | |
128 | .buttons = visstrim_gpio_keys, | |
129 | .nbuttons = ARRAY_SIZE(visstrim_gpio_keys), | |
130 | }; | |
131 | ||
132 | static struct platform_device visstrim_gpio_keys_device = { | |
133 | .name = "gpio-keys", | |
134 | .id = -1, | |
135 | .dev = { | |
136 | .platform_data = &visstrim_gpio_keys_platform_data, | |
137 | }, | |
138 | }; | |
139 | ||
140 | /* Visstrim_SM10 has a microSD slot connected to sdhc1 */ | |
141 | static int visstrim_m10_sdhc1_init(struct device *dev, | |
142 | irq_handler_t detect_irq, void *data) | |
143 | { | |
144 | int ret; | |
145 | ||
146 | ret = request_irq(SDHC1_IRQ, detect_irq, IRQF_TRIGGER_FALLING, | |
147 | "mmc-detect", data); | |
148 | return ret; | |
149 | } | |
150 | ||
151 | static void visstrim_m10_sdhc1_exit(struct device *dev, void *data) | |
152 | { | |
153 | free_irq(SDHC1_IRQ, data); | |
154 | } | |
155 | ||
9d3d945a | 156 | static const struct imxmmc_platform_data visstrim_m10_sdhc_pdata __initconst = { |
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157 | .init = visstrim_m10_sdhc1_init, |
158 | .exit = visstrim_m10_sdhc1_exit, | |
159 | }; | |
160 | ||
161 | /* Visstrim_SM10 NOR flash */ | |
162 | static struct physmap_flash_data visstrim_m10_flash_data = { | |
163 | .width = 2, | |
164 | }; | |
165 | ||
166 | static struct resource visstrim_m10_flash_resource = { | |
167 | .start = 0xc0000000, | |
168 | .end = 0xc0000000 + SZ_64M - 1, | |
169 | .flags = IORESOURCE_MEM, | |
170 | }; | |
171 | ||
172 | static struct platform_device visstrim_m10_nor_mtd_device = { | |
173 | .name = "physmap-flash", | |
174 | .id = 0, | |
175 | .dev = { | |
176 | .platform_data = &visstrim_m10_flash_data, | |
177 | }, | |
178 | .num_resources = 1, | |
179 | .resource = &visstrim_m10_flash_resource, | |
180 | }; | |
181 | ||
182 | static struct platform_device *platform_devices[] __initdata = { | |
183 | &visstrim_gpio_keys_device, | |
184 | &visstrim_m10_nor_mtd_device, | |
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185 | }; |
186 | ||
187 | /* Visstrim_M10 uses UART0 as console */ | |
188 | static const struct imxuart_platform_data uart_pdata __initconst = { | |
189 | .flags = IMXUART_HAVE_RTSCTS, | |
190 | }; | |
191 | ||
192 | /* I2C */ | |
193 | static const struct imxi2c_platform_data visstrim_m10_i2c_data __initconst = { | |
194 | .bitrate = 100000, | |
195 | }; | |
196 | ||
197 | static struct pca953x_platform_data visstrim_m10_pca9555_pdata = { | |
198 | .gpio_base = 240, /* After MX27 internal GPIOs */ | |
199 | .invert = 0, | |
200 | }; | |
201 | ||
202 | static struct i2c_board_info visstrim_m10_i2c_devices[] = { | |
203 | { | |
204 | I2C_BOARD_INFO("pca9555", 0x20), | |
205 | .platform_data = &visstrim_m10_pca9555_pdata, | |
206 | }, | |
207 | }; | |
208 | ||
209 | /* USB OTG */ | |
210 | static int otg_phy_init(struct platform_device *pdev) | |
211 | { | |
212 | gpio_set_value(OTG_PHY_CS_GPIO, 0); | |
213 | return 0; | |
214 | } | |
215 | ||
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216 | static const struct mxc_usbh_platform_data |
217 | visstrim_m10_usbotg_pdata __initconst = { | |
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218 | .init = otg_phy_init, |
219 | .portsc = MXC_EHCI_MODE_ULPI | MXC_EHCI_UTMI_8BIT, | |
220 | .flags = MXC_EHCI_POWER_PINS_ENABLED, | |
221 | }; | |
222 | ||
223 | static void __init visstrim_m10_board_init(void) | |
224 | { | |
225 | int ret; | |
226 | ||
227 | ret = mxc_gpio_setup_multiple_pins(visstrim_m10_pins, | |
228 | ARRAY_SIZE(visstrim_m10_pins), "VISSTRIM_M10"); | |
229 | if (ret) | |
230 | pr_err("Failed to setup pins (%d)\n", ret); | |
231 | ||
232 | imx27_add_imx_uart0(&uart_pdata); | |
233 | ||
234 | i2c_register_board_info(0, visstrim_m10_i2c_devices, | |
235 | ARRAY_SIZE(visstrim_m10_i2c_devices)); | |
77a406da UKK |
236 | imx27_add_imx_i2c(0, &visstrim_m10_i2c_data); |
237 | imx27_add_imx_i2c(1, &visstrim_m10_i2c_data); | |
9d3d945a | 238 | imx27_add_mxc_mmc(0, &visstrim_m10_sdhc_pdata); |
2eb42d5c | 239 | imx27_add_mxc_ehci_otg(&visstrim_m10_usbotg_pdata); |
6bd96f3c | 240 | imx27_add_fec(NULL); |
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241 | platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices)); |
242 | } | |
243 | ||
244 | static void __init visstrim_m10_timer_init(void) | |
245 | { | |
246 | mx27_clocks_init((unsigned long)25000000); | |
247 | } | |
248 | ||
249 | static struct sys_timer visstrim_m10_timer = { | |
250 | .init = visstrim_m10_timer_init, | |
251 | }; | |
252 | ||
253 | MACHINE_START(IMX27_VISSTRIM_M10, "Vista Silicon Visstrim_M10") | |
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254 | .boot_params = MX27_PHYS_OFFSET + 0x100, |
255 | .map_io = mx27_map_io, | |
256 | .init_irq = mx27_init_irq, | |
257 | .init_machine = visstrim_m10_board_init, | |
258 | .timer = &visstrim_m10_timer, | |
259 | MACHINE_END |