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1 | /* | |
2 | * Copyright 2007 Robert Schwebel <r.schwebel@pengutronix.de>, Pengutronix | |
3 | * Copyright (C) 2008 Juergen Beisert (kernel@pengutronix.de) | |
4 | * | |
5 | * This program is free software; you can redistribute it and/or | |
6 | * modify it under the terms of the GNU General Public License | |
7 | * as published by the Free Software Foundation; either version 2 | |
8 | * of the License, or (at your option) any later version. | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program; if not, write to the Free Software | |
16 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, | |
17 | * MA 02110-1301, USA. | |
18 | */ | |
19 | ||
20 | #include <linux/i2c.h> | |
21 | #include <linux/platform_data/at24.h> | |
22 | #include <linux/io.h> | |
23 | #include <linux/mtd/plat-ram.h> | |
24 | #include <linux/mtd/physmap.h> | |
25 | #include <linux/platform_device.h> | |
26 | #include <linux/regulator/machine.h> | |
27 | #include <linux/mfd/mc13783.h> | |
28 | #include <linux/spi/spi.h> | |
29 | #include <linux/irq.h> | |
30 | #include <linux/gpio.h> | |
31 | ||
32 | #include <asm/mach-types.h> | |
33 | #include <asm/mach/arch.h> | |
34 | #include <asm/mach/time.h> | |
35 | ||
36 | #include "board-pcm038.h" | |
37 | #include "common.h" | |
38 | #include "devices-imx27.h" | |
39 | #include "ehci.h" | |
40 | #include "hardware.h" | |
41 | #include "iomux-mx27.h" | |
42 | #include "ulpi.h" | |
43 | ||
44 | static const int pcm038_pins[] __initconst = { | |
45 | /* UART1 */ | |
46 | PE12_PF_UART1_TXD, | |
47 | PE13_PF_UART1_RXD, | |
48 | PE14_PF_UART1_CTS, | |
49 | PE15_PF_UART1_RTS, | |
50 | /* UART2 */ | |
51 | PE3_PF_UART2_CTS, | |
52 | PE4_PF_UART2_RTS, | |
53 | PE6_PF_UART2_TXD, | |
54 | PE7_PF_UART2_RXD, | |
55 | /* UART3 */ | |
56 | PE8_PF_UART3_TXD, | |
57 | PE9_PF_UART3_RXD, | |
58 | PE10_PF_UART3_CTS, | |
59 | PE11_PF_UART3_RTS, | |
60 | /* FEC */ | |
61 | PD0_AIN_FEC_TXD0, | |
62 | PD1_AIN_FEC_TXD1, | |
63 | PD2_AIN_FEC_TXD2, | |
64 | PD3_AIN_FEC_TXD3, | |
65 | PD4_AOUT_FEC_RX_ER, | |
66 | PD5_AOUT_FEC_RXD1, | |
67 | PD6_AOUT_FEC_RXD2, | |
68 | PD7_AOUT_FEC_RXD3, | |
69 | PD8_AF_FEC_MDIO, | |
70 | PD9_AIN_FEC_MDC, | |
71 | PD10_AOUT_FEC_CRS, | |
72 | PD11_AOUT_FEC_TX_CLK, | |
73 | PD12_AOUT_FEC_RXD0, | |
74 | PD13_AOUT_FEC_RX_DV, | |
75 | PD14_AOUT_FEC_RX_CLK, | |
76 | PD15_AOUT_FEC_COL, | |
77 | PD16_AIN_FEC_TX_ER, | |
78 | PF23_AIN_FEC_TX_EN, | |
79 | /* I2C2 */ | |
80 | PC5_PF_I2C2_SDA, | |
81 | PC6_PF_I2C2_SCL, | |
82 | /* SPI1 */ | |
83 | PD25_PF_CSPI1_RDY, | |
84 | PD29_PF_CSPI1_SCLK, | |
85 | PD30_PF_CSPI1_MISO, | |
86 | PD31_PF_CSPI1_MOSI, | |
87 | /* SSI1 */ | |
88 | PC20_PF_SSI1_FS, | |
89 | PC21_PF_SSI1_RXD, | |
90 | PC22_PF_SSI1_TXD, | |
91 | PC23_PF_SSI1_CLK, | |
92 | /* SSI4 */ | |
93 | PC16_PF_SSI4_FS, | |
94 | PC17_PF_SSI4_RXD, | |
95 | PC18_PF_SSI4_TXD, | |
96 | PC19_PF_SSI4_CLK, | |
97 | /* USB host */ | |
98 | PA0_PF_USBH2_CLK, | |
99 | PA1_PF_USBH2_DIR, | |
100 | PA2_PF_USBH2_DATA7, | |
101 | PA3_PF_USBH2_NXT, | |
102 | PA4_PF_USBH2_STP, | |
103 | PD19_AF_USBH2_DATA4, | |
104 | PD20_AF_USBH2_DATA3, | |
105 | PD21_AF_USBH2_DATA6, | |
106 | PD22_AF_USBH2_DATA0, | |
107 | PD23_AF_USBH2_DATA2, | |
108 | PD24_AF_USBH2_DATA1, | |
109 | PD26_AF_USBH2_DATA5, | |
110 | }; | |
111 | ||
112 | /* | |
113 | * Phytec's PCM038 comes with 2MiB battery buffered SRAM, | |
114 | * 16 bit width | |
115 | */ | |
116 | ||
117 | static struct platdata_mtd_ram pcm038_sram_data = { | |
118 | .bankwidth = 2, | |
119 | }; | |
120 | ||
121 | static struct resource pcm038_sram_resource = { | |
122 | .start = MX27_CS1_BASE_ADDR, | |
123 | .end = MX27_CS1_BASE_ADDR + 512 * 1024 - 1, | |
124 | .flags = IORESOURCE_MEM, | |
125 | }; | |
126 | ||
127 | static struct platform_device pcm038_sram_mtd_device = { | |
128 | .name = "mtd-ram", | |
129 | .id = 0, | |
130 | .dev = { | |
131 | .platform_data = &pcm038_sram_data, | |
132 | }, | |
133 | .num_resources = 1, | |
134 | .resource = &pcm038_sram_resource, | |
135 | }; | |
136 | ||
137 | /* | |
138 | * Phytec's phyCORE-i.MX27 comes with 32MiB flash, | |
139 | * 16 bit width | |
140 | */ | |
141 | static struct physmap_flash_data pcm038_flash_data = { | |
142 | .width = 2, | |
143 | }; | |
144 | ||
145 | static struct resource pcm038_flash_resource = { | |
146 | .start = 0xc0000000, | |
147 | .end = 0xc1ffffff, | |
148 | .flags = IORESOURCE_MEM, | |
149 | }; | |
150 | ||
151 | static struct platform_device pcm038_nor_mtd_device = { | |
152 | .name = "physmap-flash", | |
153 | .id = 0, | |
154 | .dev = { | |
155 | .platform_data = &pcm038_flash_data, | |
156 | }, | |
157 | .num_resources = 1, | |
158 | .resource = &pcm038_flash_resource, | |
159 | }; | |
160 | ||
161 | static const struct imxuart_platform_data uart_pdata __initconst = { | |
162 | .flags = IMXUART_HAVE_RTSCTS, | |
163 | }; | |
164 | ||
165 | static const struct mxc_nand_platform_data | |
166 | pcm038_nand_board_info __initconst = { | |
167 | .width = 1, | |
168 | .hw_ecc = 1, | |
169 | }; | |
170 | ||
171 | static struct platform_device *platform_devices[] __initdata = { | |
172 | &pcm038_nor_mtd_device, | |
173 | &pcm038_sram_mtd_device, | |
174 | }; | |
175 | ||
176 | /* On pcm038 there's a sram attached to CS1, we enable the chipselect here and | |
177 | * setup other stuffs to access the sram. */ | |
178 | static void __init pcm038_init_sram(void) | |
179 | { | |
180 | __raw_writel(0x0000d843, MX27_IO_ADDRESS(MX27_WEIM_CSCRxU(1))); | |
181 | __raw_writel(0x22252521, MX27_IO_ADDRESS(MX27_WEIM_CSCRxL(1))); | |
182 | __raw_writel(0x22220a00, MX27_IO_ADDRESS(MX27_WEIM_CSCRxA(1))); | |
183 | } | |
184 | ||
185 | static const struct imxi2c_platform_data pcm038_i2c1_data __initconst = { | |
186 | .bitrate = 100000, | |
187 | }; | |
188 | ||
189 | static struct at24_platform_data board_eeprom = { | |
190 | .byte_len = 4096, | |
191 | .page_size = 32, | |
192 | .flags = AT24_FLAG_ADDR16, | |
193 | }; | |
194 | ||
195 | static struct i2c_board_info pcm038_i2c_devices[] = { | |
196 | { | |
197 | I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */ | |
198 | .platform_data = &board_eeprom, | |
199 | }, { | |
200 | I2C_BOARD_INFO("pcf8563", 0x51), | |
201 | }, { | |
202 | I2C_BOARD_INFO("lm75", 0x4a), | |
203 | } | |
204 | }; | |
205 | ||
206 | static int pcm038_spi_cs[] = {GPIO_PORTD + 28}; | |
207 | ||
208 | static const struct spi_imx_master pcm038_spi0_data __initconst = { | |
209 | .chipselect = pcm038_spi_cs, | |
210 | .num_chipselect = ARRAY_SIZE(pcm038_spi_cs), | |
211 | }; | |
212 | ||
213 | static struct regulator_consumer_supply sdhc1_consumers[] = { | |
214 | { | |
215 | .dev_name = "imx21-mmc.1", | |
216 | .supply = "sdhc_vcc", | |
217 | }, | |
218 | }; | |
219 | ||
220 | static struct regulator_init_data sdhc1_data = { | |
221 | .constraints = { | |
222 | .min_uV = 3000000, | |
223 | .max_uV = 3400000, | |
224 | .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE | | |
225 | REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS, | |
226 | .valid_modes_mask = REGULATOR_MODE_NORMAL | | |
227 | REGULATOR_MODE_FAST, | |
228 | .always_on = 0, | |
229 | .boot_on = 0, | |
230 | }, | |
231 | .num_consumer_supplies = ARRAY_SIZE(sdhc1_consumers), | |
232 | .consumer_supplies = sdhc1_consumers, | |
233 | }; | |
234 | ||
235 | static struct regulator_consumer_supply cam_consumers[] = { | |
236 | { | |
237 | .dev_name = NULL, | |
238 | .supply = "imx_cam_vcc", | |
239 | }, | |
240 | }; | |
241 | ||
242 | static struct regulator_init_data cam_data = { | |
243 | .constraints = { | |
244 | .min_uV = 3000000, | |
245 | .max_uV = 3400000, | |
246 | .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE | | |
247 | REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS, | |
248 | .valid_modes_mask = REGULATOR_MODE_NORMAL | | |
249 | REGULATOR_MODE_FAST, | |
250 | .always_on = 0, | |
251 | .boot_on = 0, | |
252 | }, | |
253 | .num_consumer_supplies = ARRAY_SIZE(cam_consumers), | |
254 | .consumer_supplies = cam_consumers, | |
255 | }; | |
256 | ||
257 | static struct mc13xxx_regulator_init_data pcm038_regulators[] = { | |
258 | { | |
259 | .id = MC13783_REG_VCAM, | |
260 | .init_data = &cam_data, | |
261 | }, { | |
262 | .id = MC13783_REG_VMMC1, | |
263 | .init_data = &sdhc1_data, | |
264 | }, | |
265 | }; | |
266 | ||
267 | static struct mc13xxx_platform_data pcm038_pmic = { | |
268 | .regulators = { | |
269 | .regulators = pcm038_regulators, | |
270 | .num_regulators = ARRAY_SIZE(pcm038_regulators), | |
271 | }, | |
272 | .flags = MC13XXX_USE_ADC | MC13XXX_USE_TOUCHSCREEN, | |
273 | }; | |
274 | ||
275 | static struct spi_board_info pcm038_spi_board_info[] __initdata = { | |
276 | { | |
277 | .modalias = "mc13783", | |
278 | /* irq number is run-time assigned */ | |
279 | .max_speed_hz = 300000, | |
280 | .bus_num = 0, | |
281 | .chip_select = 0, | |
282 | .platform_data = &pcm038_pmic, | |
283 | .mode = SPI_CS_HIGH, | |
284 | } | |
285 | }; | |
286 | ||
287 | static int pcm038_usbh2_init(struct platform_device *pdev) | |
288 | { | |
289 | return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED | | |
290 | MXC_EHCI_INTERFACE_DIFF_UNI); | |
291 | } | |
292 | ||
293 | static const struct mxc_usbh_platform_data usbh2_pdata __initconst = { | |
294 | .init = pcm038_usbh2_init, | |
295 | .portsc = MXC_EHCI_MODE_ULPI, | |
296 | }; | |
297 | ||
298 | static void __init pcm038_init(void) | |
299 | { | |
300 | imx27_soc_init(); | |
301 | ||
302 | mxc_gpio_setup_multiple_pins(pcm038_pins, ARRAY_SIZE(pcm038_pins), | |
303 | "PCM038"); | |
304 | ||
305 | pcm038_init_sram(); | |
306 | ||
307 | imx27_add_imx_uart0(&uart_pdata); | |
308 | imx27_add_imx_uart1(&uart_pdata); | |
309 | imx27_add_imx_uart2(&uart_pdata); | |
310 | ||
311 | mxc_gpio_mode(PE16_AF_OWIRE); | |
312 | imx27_add_mxc_nand(&pcm038_nand_board_info); | |
313 | ||
314 | /* only the i2c master 1 is used on this CPU card */ | |
315 | i2c_register_board_info(1, pcm038_i2c_devices, | |
316 | ARRAY_SIZE(pcm038_i2c_devices)); | |
317 | ||
318 | imx27_add_imx_i2c(1, &pcm038_i2c1_data); | |
319 | ||
320 | /* PE18 for user-LED D40 */ | |
321 | mxc_gpio_mode(GPIO_PORTE | 18 | GPIO_GPIO | GPIO_OUT); | |
322 | ||
323 | mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_OUT); | |
324 | ||
325 | /* MC13783 IRQ */ | |
326 | mxc_gpio_mode(GPIO_PORTB | 23 | GPIO_GPIO | GPIO_IN); | |
327 | ||
328 | imx27_add_spi_imx0(&pcm038_spi0_data); | |
329 | pcm038_spi_board_info[0].irq = gpio_to_irq(IMX_GPIO_NR(2, 23)); | |
330 | spi_register_board_info(pcm038_spi_board_info, | |
331 | ARRAY_SIZE(pcm038_spi_board_info)); | |
332 | ||
333 | imx27_add_mxc_ehci_hs(2, &usbh2_pdata); | |
334 | ||
335 | imx27_add_fec(NULL); | |
336 | platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices)); | |
337 | imx27_add_imx2_wdt(); | |
338 | imx27_add_mxc_w1(); | |
339 | ||
340 | #ifdef CONFIG_MACH_PCM970_BASEBOARD | |
341 | pcm970_baseboard_init(); | |
342 | #endif | |
343 | } | |
344 | ||
345 | static void __init pcm038_timer_init(void) | |
346 | { | |
347 | mx27_clocks_init(26000000); | |
348 | } | |
349 | ||
350 | MACHINE_START(PCM038, "phyCORE-i.MX27") | |
351 | .atag_offset = 0x100, | |
352 | .map_io = mx27_map_io, | |
353 | .init_early = imx27_init_early, | |
354 | .init_irq = mx27_init_irq, | |
355 | .init_time = pcm038_timer_init, | |
356 | .init_machine = pcm038_init, | |
357 | .restart = mxc_restart, | |
358 | MACHINE_END |