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33731698 LF |
1 | /* |
2 | * Copyright 2007 Robert Schwebel <r.schwebel@pengutronix.de>, Pengutronix | |
3 | * Copyright (C) 2009 Sascha Hauer (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/platform_device.h> | |
21 | #include <linux/io.h> | |
22 | #include <linux/i2c.h> | |
23 | #include <linux/i2c/at24.h> | |
24 | #include <linux/dma-mapping.h> | |
25 | #include <linux/spi/spi.h> | |
26 | #include <linux/spi/eeprom.h> | |
27 | #include <linux/irq.h> | |
28 | #include <linux/gpio.h> | |
29 | ||
30 | #include <asm/mach/arch.h> | |
31 | #include <asm/mach-types.h> | |
32 | #include <mach/common.h> | |
33 | #include <mach/hardware.h> | |
34 | #include <mach/iomux.h> | |
35 | #include <mach/i2c.h> | |
36 | #include <asm/mach/time.h> | |
37 | #if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE) | |
38 | #include <mach/spi.h> | |
39 | #endif | |
40 | #include <mach/imx-uart.h> | |
41 | #include <mach/mxc_nand.h> | |
42 | #include <mach/irqs.h> | |
43 | #include <mach/mmc.h> | |
44 | ||
45 | #include "devices.h" | |
46 | ||
47 | static int pca100_pins[] = { | |
48 | /* UART1 */ | |
49 | PE12_PF_UART1_TXD, | |
50 | PE13_PF_UART1_RXD, | |
51 | PE14_PF_UART1_CTS, | |
52 | PE15_PF_UART1_RTS, | |
53 | /* SDHC */ | |
54 | PB4_PF_SD2_D0, | |
55 | PB5_PF_SD2_D1, | |
56 | PB6_PF_SD2_D2, | |
57 | PB7_PF_SD2_D3, | |
58 | PB8_PF_SD2_CMD, | |
59 | PB9_PF_SD2_CLK, | |
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 | /* SSI1 */ | |
80 | PC20_PF_SSI1_FS, | |
81 | PC21_PF_SSI1_RXD, | |
82 | PC22_PF_SSI1_TXD, | |
83 | PC23_PF_SSI1_CLK, | |
84 | /* onboard I2C */ | |
85 | PC5_PF_I2C2_SDA, | |
86 | PC6_PF_I2C2_SCL, | |
87 | /* external I2C */ | |
88 | PD17_PF_I2C_DATA, | |
89 | PD18_PF_I2C_CLK, | |
90 | /* SPI1 */ | |
91 | PD25_PF_CSPI1_RDY, | |
92 | PD29_PF_CSPI1_SCLK, | |
93 | PD30_PF_CSPI1_MISO, | |
94 | PD31_PF_CSPI1_MOSI, | |
95 | }; | |
96 | ||
97 | static struct imxuart_platform_data uart_pdata = { | |
98 | .flags = IMXUART_HAVE_RTSCTS, | |
99 | }; | |
100 | ||
101 | static struct mxc_nand_platform_data pca100_nand_board_info = { | |
102 | .width = 1, | |
103 | .hw_ecc = 1, | |
104 | }; | |
105 | ||
106 | static struct platform_device *platform_devices[] __initdata = { | |
107 | &mxc_w1_master_device, | |
108 | &mxc_fec_device, | |
109 | }; | |
110 | ||
111 | static struct imxi2c_platform_data pca100_i2c_1_data = { | |
112 | .bitrate = 100000, | |
113 | }; | |
114 | ||
115 | static struct at24_platform_data board_eeprom = { | |
116 | .byte_len = 4096, | |
117 | .page_size = 32, | |
118 | .flags = AT24_FLAG_ADDR16, | |
119 | }; | |
120 | ||
121 | static struct i2c_board_info pca100_i2c_devices[] = { | |
122 | { | |
123 | I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */ | |
124 | .platform_data = &board_eeprom, | |
125 | }, { | |
126 | I2C_BOARD_INFO("rtc-pcf8563", 0x51), | |
127 | .type = "pcf8563" | |
128 | }, { | |
129 | I2C_BOARD_INFO("lm75", 0x4a), | |
130 | .type = "lm75" | |
131 | } | |
132 | }; | |
133 | ||
134 | #if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE) | |
135 | static struct spi_eeprom at25320 = { | |
136 | .name = "at25320an", | |
137 | .byte_len = 4096, | |
138 | .page_size = 32, | |
139 | .flags = EE_ADDR2, | |
140 | }; | |
141 | ||
142 | static struct spi_board_info pca100_spi_board_info[] __initdata = { | |
143 | { | |
144 | .modalias = "at25", | |
145 | .max_speed_hz = 30000, | |
146 | .bus_num = 0, | |
147 | .chip_select = 1, | |
148 | .platform_data = &at25320, | |
149 | }, | |
150 | }; | |
151 | ||
152 | static int pca100_spi_cs[] = {GPIO_PORTD + 28, GPIO_PORTD + 27}; | |
153 | ||
154 | static struct spi_imx_master pca100_spi_0_data = { | |
155 | .chipselect = pca100_spi_cs, | |
156 | .num_chipselect = ARRAY_SIZE(pca100_spi_cs), | |
157 | }; | |
158 | #endif | |
159 | ||
160 | static int pca100_sdhc2_init(struct device *dev, irq_handler_t detect_irq, | |
161 | void *data) | |
162 | { | |
163 | int ret; | |
164 | ||
165 | ret = request_irq(IRQ_GPIOC(29), detect_irq, | |
166 | IRQF_DISABLED | IRQF_TRIGGER_FALLING, | |
167 | "imx-mmc-detect", data); | |
168 | if (ret) | |
169 | printk(KERN_ERR | |
170 | "pca100: Failed to reuest irq for sd/mmc detection\n"); | |
171 | ||
172 | return ret; | |
173 | } | |
174 | ||
175 | static void pca100_sdhc2_exit(struct device *dev, void *data) | |
176 | { | |
177 | free_irq(IRQ_GPIOC(29), data); | |
178 | } | |
179 | ||
180 | static struct imxmmc_platform_data sdhc_pdata = { | |
181 | .init = pca100_sdhc2_init, | |
182 | .exit = pca100_sdhc2_exit, | |
183 | }; | |
184 | ||
185 | static void __init pca100_init(void) | |
186 | { | |
187 | int ret; | |
188 | ||
189 | ret = mxc_gpio_setup_multiple_pins(pca100_pins, | |
190 | ARRAY_SIZE(pca100_pins), "PCA100"); | |
191 | if (ret) | |
192 | printk(KERN_ERR "pca100: Failed to setup pins (%d)\n", ret); | |
193 | ||
194 | mxc_register_device(&mxc_uart_device0, &uart_pdata); | |
195 | ||
196 | mxc_gpio_mode(GPIO_PORTC | 29 | GPIO_GPIO | GPIO_IN); | |
197 | mxc_register_device(&mxc_sdhc_device1, &sdhc_pdata); | |
198 | ||
199 | mxc_register_device(&mxc_nand_device, &pca100_nand_board_info); | |
200 | ||
201 | /* only the i2c master 1 is used on this CPU card */ | |
202 | i2c_register_board_info(1, pca100_i2c_devices, | |
203 | ARRAY_SIZE(pca100_i2c_devices)); | |
204 | ||
205 | mxc_register_device(&mxc_i2c_device1, &pca100_i2c_1_data); | |
206 | ||
207 | mxc_gpio_mode(GPIO_PORTD | 28 | GPIO_GPIO | GPIO_OUT); | |
208 | mxc_gpio_mode(GPIO_PORTD | 27 | GPIO_GPIO | GPIO_OUT); | |
209 | ||
210 | /* GPIO0_IRQ */ | |
211 | mxc_gpio_mode(GPIO_PORTC | 31 | GPIO_GPIO | GPIO_IN); | |
212 | /* GPIO1_IRQ */ | |
213 | mxc_gpio_mode(GPIO_PORTC | 25 | GPIO_GPIO | GPIO_IN); | |
214 | /* GPIO2_IRQ */ | |
215 | mxc_gpio_mode(GPIO_PORTE | 5 | GPIO_GPIO | GPIO_IN); | |
216 | ||
217 | #if defined(CONFIG_SPI_IMX) || defined(CONFIG_SPI_IMX_MODULE) | |
218 | spi_register_board_info(pca100_spi_board_info, | |
219 | ARRAY_SIZE(pca100_spi_board_info)); | |
220 | mxc_register_device(&mxc_spi_device0, &pca100_spi_0_data); | |
221 | #endif | |
222 | ||
223 | platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices)); | |
224 | } | |
225 | ||
226 | static void __init pca100_timer_init(void) | |
227 | { | |
228 | mx27_clocks_init(26000000); | |
229 | } | |
230 | ||
231 | static struct sys_timer pca100_timer = { | |
232 | .init = pca100_timer_init, | |
233 | }; | |
234 | ||
235 | MACHINE_START(PCA100, "phyCARD-i.MX27") | |
3f35d1f5 UKK |
236 | .phys_io = MX27_AIPI_BASE_ADDR, |
237 | .io_pg_offst = ((MX27_AIPI_BASE_ADDR_VIRT) >> 18) & 0xfffc, | |
34101237 | 238 | .boot_params = MX27_PHYS_OFFSET + 0x100, |
33731698 | 239 | .map_io = mx27_map_io, |
f6f1bc64 | 240 | .init_irq = mx27_init_irq, |
33731698 LF |
241 | .init_machine = pca100_init, |
242 | .timer = &pca100_timer, | |
243 | MACHINE_END | |
244 |