ARM: Merge next-samsung-s3c2443-clock
[linux-2.6.git] / arch / arm / mach-mx2 / pcm038.c
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/i2c/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
31 #include <asm/mach-types.h>
32 #include <asm/mach/arch.h>
33 #include <asm/mach/time.h>
34
35 #include <mach/board-pcm038.h>
36 #include <mach/common.h>
37 #include <mach/hardware.h>
38 #include <mach/i2c.h>
39 #include <mach/iomux.h>
40 #include <mach/imx-uart.h>
41 #include <mach/mxc_nand.h>
42 #include <mach/spi.h>
43
44 #include "devices.h"
45
46 static int pcm038_pins[] = {
47         /* UART1 */
48         PE12_PF_UART1_TXD,
49         PE13_PF_UART1_RXD,
50         PE14_PF_UART1_CTS,
51         PE15_PF_UART1_RTS,
52         /* UART2 */
53         PE3_PF_UART2_CTS,
54         PE4_PF_UART2_RTS,
55         PE6_PF_UART2_TXD,
56         PE7_PF_UART2_RXD,
57         /* UART3 */
58         PE8_PF_UART3_TXD,
59         PE9_PF_UART3_RXD,
60         PE10_PF_UART3_CTS,
61         PE11_PF_UART3_RTS,
62         /* FEC */
63         PD0_AIN_FEC_TXD0,
64         PD1_AIN_FEC_TXD1,
65         PD2_AIN_FEC_TXD2,
66         PD3_AIN_FEC_TXD3,
67         PD4_AOUT_FEC_RX_ER,
68         PD5_AOUT_FEC_RXD1,
69         PD6_AOUT_FEC_RXD2,
70         PD7_AOUT_FEC_RXD3,
71         PD8_AF_FEC_MDIO,
72         PD9_AIN_FEC_MDC,
73         PD10_AOUT_FEC_CRS,
74         PD11_AOUT_FEC_TX_CLK,
75         PD12_AOUT_FEC_RXD0,
76         PD13_AOUT_FEC_RX_DV,
77         PD14_AOUT_FEC_RX_CLK,
78         PD15_AOUT_FEC_COL,
79         PD16_AIN_FEC_TX_ER,
80         PF23_AIN_FEC_TX_EN,
81         /* I2C2 */
82         PC5_PF_I2C2_SDA,
83         PC6_PF_I2C2_SCL,
84         /* SPI1 */
85         PD25_PF_CSPI1_RDY,
86         PD29_PF_CSPI1_SCLK,
87         PD30_PF_CSPI1_MISO,
88         PD31_PF_CSPI1_MOSI,
89         /* SSI1 */
90         PC20_PF_SSI1_FS,
91         PC21_PF_SSI1_RXD,
92         PC22_PF_SSI1_TXD,
93         PC23_PF_SSI1_CLK,
94         /* SSI4 */
95         PC16_PF_SSI4_FS,
96         PC17_PF_SSI4_RXD,
97         PC18_PF_SSI4_TXD,
98         PC19_PF_SSI4_CLK,
99 };
100
101 /*
102  * Phytec's PCM038 comes with 2MiB battery buffered SRAM,
103  * 16 bit width
104  */
105
106 static struct platdata_mtd_ram pcm038_sram_data = {
107         .bankwidth = 2,
108 };
109
110 static struct resource pcm038_sram_resource = {
111         .start = CS1_BASE_ADDR,
112         .end   = CS1_BASE_ADDR + 512 * 1024 - 1,
113         .flags = IORESOURCE_MEM,
114 };
115
116 static struct platform_device pcm038_sram_mtd_device = {
117         .name = "mtd-ram",
118         .id = 0,
119         .dev = {
120                 .platform_data = &pcm038_sram_data,
121         },
122         .num_resources = 1,
123         .resource = &pcm038_sram_resource,
124 };
125
126 /*
127  * Phytec's phyCORE-i.MX27 comes with 32MiB flash,
128  * 16 bit width
129  */
130 static struct physmap_flash_data pcm038_flash_data = {
131         .width = 2,
132 };
133
134 static struct resource pcm038_flash_resource = {
135         .start = 0xc0000000,
136         .end   = 0xc1ffffff,
137         .flags = IORESOURCE_MEM,
138 };
139
140 static struct platform_device pcm038_nor_mtd_device = {
141         .name = "physmap-flash",
142         .id = 0,
143         .dev = {
144                 .platform_data = &pcm038_flash_data,
145         },
146         .num_resources = 1,
147         .resource = &pcm038_flash_resource,
148 };
149
150 static struct imxuart_platform_data uart_pdata[] = {
151         {
152                 .flags = IMXUART_HAVE_RTSCTS,
153         }, {
154                 .flags = IMXUART_HAVE_RTSCTS,
155         }, {
156                 .flags = IMXUART_HAVE_RTSCTS,
157         },
158 };
159
160 static struct mxc_nand_platform_data pcm038_nand_board_info = {
161         .width = 1,
162         .hw_ecc = 1,
163 };
164
165 static struct platform_device *platform_devices[] __initdata = {
166         &pcm038_nor_mtd_device,
167         &mxc_w1_master_device,
168         &mxc_fec_device,
169         &pcm038_sram_mtd_device,
170 };
171
172 /* On pcm038 there's a sram attached to CS1, we enable the chipselect here and
173  * setup other stuffs to access the sram. */
174 static void __init pcm038_init_sram(void)
175 {
176         __raw_writel(0x0000d843, CSCR_U(1));
177         __raw_writel(0x22252521, CSCR_L(1));
178         __raw_writel(0x22220a00, CSCR_A(1));
179 }
180
181 static struct imxi2c_platform_data pcm038_i2c_1_data = {
182         .bitrate = 100000,
183 };
184
185 static struct at24_platform_data board_eeprom = {
186         .byte_len = 4096,
187         .page_size = 32,
188         .flags = AT24_FLAG_ADDR16,
189 };
190
191 static struct i2c_board_info pcm038_i2c_devices[] = {
192         {
193                 I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */
194                 .platform_data = &board_eeprom,
195         }, {
196                 I2C_BOARD_INFO("pcf8563", 0x51),
197         }, {
198                 I2C_BOARD_INFO("lm75", 0x4a),
199         }
200 };
201
202 static int pcm038_spi_cs[] = {GPIO_PORTD + 28};
203
204 static struct spi_imx_master pcm038_spi_0_data = {
205         .chipselect = pcm038_spi_cs,
206         .num_chipselect = ARRAY_SIZE(pcm038_spi_cs),
207 };
208
209 static struct regulator_consumer_supply sdhc1_consumers[] = {
210         {
211                 .dev    = &mxc_sdhc_device1.dev,
212                 .supply = "sdhc_vcc",
213         },
214 };
215
216 static struct regulator_init_data sdhc1_data = {
217         .constraints = {
218                 .min_uV = 3000000,
219                 .max_uV = 3400000,
220                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
221                         REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
222                 .valid_modes_mask = REGULATOR_MODE_NORMAL |
223                         REGULATOR_MODE_FAST,
224                 .always_on = 0,
225                 .boot_on = 0,
226         },
227         .num_consumer_supplies = ARRAY_SIZE(sdhc1_consumers),
228         .consumer_supplies = sdhc1_consumers,
229 };
230
231 static struct regulator_consumer_supply cam_consumers[] = {
232         {
233                 .dev    = NULL,
234                 .supply = "imx_cam_vcc",
235         },
236 };
237
238 static struct regulator_init_data cam_data = {
239         .constraints = {
240                 .min_uV = 3000000,
241                 .max_uV = 3400000,
242                 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
243                         REGULATOR_CHANGE_MODE | REGULATOR_CHANGE_STATUS,
244                 .valid_modes_mask = REGULATOR_MODE_NORMAL |
245                         REGULATOR_MODE_FAST,
246                 .always_on = 0,
247                 .boot_on = 0,
248         },
249         .num_consumer_supplies = ARRAY_SIZE(cam_consumers),
250         .consumer_supplies = cam_consumers,
251 };
252
253 struct mc13783_regulator_init_data pcm038_regulators[] = {
254         {
255                 .id = MC13783_REGU_VCAM,
256                 .init_data = &cam_data,
257         }, {
258                 .id = MC13783_REGU_VMMC1,
259                 .init_data = &sdhc1_data,
260         },
261 };
262
263 static struct mc13783_platform_data pcm038_pmic = {
264         .regulators = pcm038_regulators,
265         .num_regulators = ARRAY_SIZE(pcm038_regulators),
266         .flags = MC13783_USE_ADC | MC13783_USE_REGULATOR |
267                  MC13783_USE_TOUCHSCREEN,
268 };
269
270 static struct spi_board_info pcm038_spi_board_info[] __initdata = {
271         {
272                 .modalias = "mc13783",
273                 .irq = IRQ_GPIOB(23),
274                 .max_speed_hz = 300000,
275                 .bus_num = 0,
276                 .chip_select = 0,
277                 .platform_data = &pcm038_pmic,
278                 .mode = SPI_CS_HIGH,
279         }
280 };
281
282 static void __init pcm038_init(void)
283 {
284         mxc_gpio_setup_multiple_pins(pcm038_pins, ARRAY_SIZE(pcm038_pins),
285                         "PCM038");
286
287         pcm038_init_sram();
288
289         mxc_register_device(&mxc_uart_device0, &uart_pdata[0]);
290         mxc_register_device(&mxc_uart_device1, &uart_pdata[1]);
291         mxc_register_device(&mxc_uart_device2, &uart_pdata[2]);
292
293         mxc_gpio_mode(PE16_AF_OWIRE);
294         mxc_register_device(&mxc_nand_device, &pcm038_nand_board_info);
295
296         /* only the i2c master 1 is used on this CPU card */
297         i2c_register_board_info(1, pcm038_i2c_devices,
298                                 ARRAY_SIZE(pcm038_i2c_devices));
299
300         mxc_register_device(&mxc_i2c_device1, &pcm038_i2c_1_data);
301
302         /* PE18 for user-LED D40 */
303         mxc_gpio_mode(GPIO_PORTE | 18 | GPIO_GPIO | GPIO_OUT);
304
305         mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_OUT);
306
307         /* MC13783 IRQ */
308         mxc_gpio_mode(GPIO_PORTB | 23 | GPIO_GPIO | GPIO_IN);
309
310         mxc_register_device(&mxc_spi_device0, &pcm038_spi_0_data);
311         spi_register_board_info(pcm038_spi_board_info,
312                                 ARRAY_SIZE(pcm038_spi_board_info));
313
314         platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
315
316 #ifdef CONFIG_MACH_PCM970_BASEBOARD
317         pcm970_baseboard_init();
318 #endif
319 }
320
321 static void __init pcm038_timer_init(void)
322 {
323         mx27_clocks_init(26000000);
324 }
325
326 static struct sys_timer pcm038_timer = {
327         .init = pcm038_timer_init,
328 };
329
330 MACHINE_START(PCM038, "phyCORE-i.MX27")
331         .phys_io        = AIPI_BASE_ADDR,
332         .io_pg_offst    = ((AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc,
333         .boot_params    = PHYS_OFFSET + 0x100,
334         .map_io         = mx27_map_io,
335         .init_irq       = mx27_init_irq,
336         .init_machine   = pcm038_init,
337         .timer          = &pcm038_timer,
338 MACHINE_END