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Linux/arch/arm/mach-imx/mach-mxt_td60.c

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  1 /*
  2  *  Copyright (C) 2000 Deep Blue Solutions Ltd
  3  *  Copyright (C) 2002 Shane Nay (shane@minirl.com)
  4  *  Copyright 2006-2007 Freescale Semiconductor, Inc. All Rights Reserved.
  5  *
  6  * This program is free software; you can redistribute it and/or modify
  7  * it under the terms of the GNU General Public License as published by
  8  * the Free Software Foundation; either version 2 of the License, or
  9  * (at your option) any later version.
 10  *
 11  * This program is distributed in the hope that it will be useful,
 12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 14  * GNU General Public License for more details.
 15  */
 16 
 17 #include <linux/platform_device.h>
 18 #include <linux/mtd/mtd.h>
 19 #include <linux/mtd/map.h>
 20 #include <linux/mtd/partitions.h>
 21 #include <linux/mtd/physmap.h>
 22 #include <linux/i2c.h>
 23 #include <linux/irq.h>
 24 #include <asm/mach-types.h>
 25 #include <asm/mach/arch.h>
 26 #include <asm/mach/time.h>
 27 #include <asm/mach/map.h>
 28 #include <linux/gpio.h>
 29 #include <linux/platform_data/pca953x.h>
 30 
 31 #include "common.h"
 32 #include "devices-imx27.h"
 33 #include "hardware.h"
 34 #include "iomux-mx27.h"
 35 
 36 static const int mxt_td60_pins[] __initconst = {
 37         /* UART0 */
 38         PE12_PF_UART1_TXD,
 39         PE13_PF_UART1_RXD,
 40         PE14_PF_UART1_CTS,
 41         PE15_PF_UART1_RTS,
 42         /* UART1 */
 43         PE3_PF_UART2_CTS,
 44         PE4_PF_UART2_RTS,
 45         PE6_PF_UART2_TXD,
 46         PE7_PF_UART2_RXD,
 47         /* UART2 */
 48         PE8_PF_UART3_TXD,
 49         PE9_PF_UART3_RXD,
 50         PE10_PF_UART3_CTS,
 51         PE11_PF_UART3_RTS,
 52         /* FEC */
 53         PD0_AIN_FEC_TXD0,
 54         PD1_AIN_FEC_TXD1,
 55         PD2_AIN_FEC_TXD2,
 56         PD3_AIN_FEC_TXD3,
 57         PD4_AOUT_FEC_RX_ER,
 58         PD5_AOUT_FEC_RXD1,
 59         PD6_AOUT_FEC_RXD2,
 60         PD7_AOUT_FEC_RXD3,
 61         PD8_AF_FEC_MDIO,
 62         PD9_AIN_FEC_MDC,
 63         PD10_AOUT_FEC_CRS,
 64         PD11_AOUT_FEC_TX_CLK,
 65         PD12_AOUT_FEC_RXD0,
 66         PD13_AOUT_FEC_RX_DV,
 67         PD14_AOUT_FEC_RX_CLK,
 68         PD15_AOUT_FEC_COL,
 69         PD16_AIN_FEC_TX_ER,
 70         PF23_AIN_FEC_TX_EN,
 71         /* I2C1 */
 72         PD17_PF_I2C_DATA,
 73         PD18_PF_I2C_CLK,
 74         /* I2C2 */
 75         PC5_PF_I2C2_SDA,
 76         PC6_PF_I2C2_SCL,
 77         /* FB */
 78         PA5_PF_LSCLK,
 79         PA6_PF_LD0,
 80         PA7_PF_LD1,
 81         PA8_PF_LD2,
 82         PA9_PF_LD3,
 83         PA10_PF_LD4,
 84         PA11_PF_LD5,
 85         PA12_PF_LD6,
 86         PA13_PF_LD7,
 87         PA14_PF_LD8,
 88         PA15_PF_LD9,
 89         PA16_PF_LD10,
 90         PA17_PF_LD11,
 91         PA18_PF_LD12,
 92         PA19_PF_LD13,
 93         PA20_PF_LD14,
 94         PA21_PF_LD15,
 95         PA22_PF_LD16,
 96         PA23_PF_LD17,
 97         PA25_PF_CLS,
 98         PA27_PF_SPL_SPR,
 99         PA28_PF_HSYNC,
100         PA29_PF_VSYNC,
101         PA30_PF_CONTRAST,
102         PA31_PF_OE_ACD,
103         /* OWIRE */
104         PE16_AF_OWIRE,
105         /* SDHC1*/
106         PE18_PF_SD1_D0,
107         PE19_PF_SD1_D1,
108         PE20_PF_SD1_D2,
109         PE21_PF_SD1_D3,
110         PE22_PF_SD1_CMD,
111         PE23_PF_SD1_CLK,
112         PF8_AF_ATA_IORDY,
113         /* SDHC2*/
114         PB4_PF_SD2_D0,
115         PB5_PF_SD2_D1,
116         PB6_PF_SD2_D2,
117         PB7_PF_SD2_D3,
118         PB8_PF_SD2_CMD,
119         PB9_PF_SD2_CLK,
120 };
121 
122 static const struct mxc_nand_platform_data
123 mxt_td60_nand_board_info __initconst = {
124         .width = 1,
125         .hw_ecc = 1,
126 };
127 
128 static const struct imxi2c_platform_data mxt_td60_i2c0_data __initconst = {
129         .bitrate = 100000,
130 };
131 
132 /* PCA9557 */
133 static int mxt_td60_pca9557_setup(struct i2c_client *client,
134                                 unsigned gpio_base, unsigned ngpio,
135                                 void *context)
136 {
137         static int mxt_td60_gpio_value[] = {
138                 -1, -1, -1, -1, -1, -1, -1, 1
139         };
140         int n;
141 
142         for (n = 0; n < ARRAY_SIZE(mxt_td60_gpio_value); ++n) {
143                 gpio_request(gpio_base + n, "MXT_TD60 GPIO Exp");
144                 if (mxt_td60_gpio_value[n] < 0)
145                         gpio_direction_input(gpio_base + n);
146                 else
147                         gpio_direction_output(gpio_base + n,
148                                                 mxt_td60_gpio_value[n]);
149                 gpio_export(gpio_base + n, 0);
150         }
151 
152         return 0;
153 }
154 
155 static struct pca953x_platform_data mxt_td60_pca9557_pdata = {
156         .gpio_base      = 240, /* place PCA9557 after all MX27 gpio pins */
157         .invert         = 0, /* Do not invert */
158         .setup          = mxt_td60_pca9557_setup,
159 };
160 
161 static struct i2c_board_info mxt_td60_i2c_devices[] = {
162         {
163                 I2C_BOARD_INFO("pca9557", 0x18),
164                 .platform_data = &mxt_td60_pca9557_pdata,
165         },
166 };
167 
168 static const struct imxi2c_platform_data mxt_td60_i2c1_data __initconst = {
169         .bitrate = 100000,
170 };
171 
172 static struct i2c_board_info mxt_td60_i2c2_devices[] = {
173 };
174 
175 static struct imx_fb_videomode mxt_td60_modes[] = {
176         {
177                 .mode = {
178                         .name           = "Chimei LW700AT9003",
179                         .refresh        = 60,
180                         .xres           = 800,
181                         .yres           = 480,
182                         .pixclock       = 30303,
183                         .hsync_len      = 64,
184                         .left_margin    = 0x67,
185                         .right_margin   = 0x68,
186                         .vsync_len      = 16,
187                         .upper_margin   = 0x0f,
188                         .lower_margin   = 0x0f,
189                 },
190                 .bpp            = 16,
191                 .pcr            = 0xFA208B83,
192         },
193 };
194 
195 static const struct imx_fb_platform_data mxt_td60_fb_data __initconst = {
196         .mode = mxt_td60_modes,
197         .num_modes = ARRAY_SIZE(mxt_td60_modes),
198 
199         /*
200          * - HSYNC active high
201          * - VSYNC active high
202          * - clk notenabled while idle
203          * - clock inverted
204          * - data not inverted
205          * - data enable low active
206          * - enable sharp mode
207          */
208         .pwmr           = 0x00A903FF,
209         .lscr1          = 0x00120300,
210         .dmacr          = 0x00020010,
211 };
212 
213 static int mxt_td60_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
214                                 void *data)
215 {
216         return request_irq(gpio_to_irq(IMX_GPIO_NR(6, 8)), detect_irq,
217                            IRQF_TRIGGER_FALLING, "sdhc1-card-detect", data);
218 }
219 
220 static void mxt_td60_sdhc1_exit(struct device *dev, void *data)
221 {
222         free_irq(gpio_to_irq(IMX_GPIO_NR(6, 8)), data);
223 }
224 
225 static const struct imxmmc_platform_data sdhc1_pdata __initconst = {
226         .init = mxt_td60_sdhc1_init,
227         .exit = mxt_td60_sdhc1_exit,
228 };
229 
230 static const struct imxuart_platform_data uart_pdata __initconst = {
231         .flags = IMXUART_HAVE_RTSCTS,
232 };
233 
234 static void __init mxt_td60_board_init(void)
235 {
236         imx27_soc_init();
237 
238         mxc_gpio_setup_multiple_pins(mxt_td60_pins, ARRAY_SIZE(mxt_td60_pins),
239                         "MXT_TD60");
240 
241         imx27_add_imx_uart0(&uart_pdata);
242         imx27_add_imx_uart1(&uart_pdata);
243         imx27_add_imx_uart2(&uart_pdata);
244         imx27_add_mxc_nand(&mxt_td60_nand_board_info);
245 
246         i2c_register_board_info(0, mxt_td60_i2c_devices,
247                                 ARRAY_SIZE(mxt_td60_i2c_devices));
248 
249         i2c_register_board_info(1, mxt_td60_i2c2_devices,
250                                 ARRAY_SIZE(mxt_td60_i2c2_devices));
251 
252         imx27_add_imx_i2c(0, &mxt_td60_i2c0_data);
253         imx27_add_imx_i2c(1, &mxt_td60_i2c1_data);
254         imx27_add_imx_fb(&mxt_td60_fb_data);
255         imx27_add_mxc_mmc(0, &sdhc1_pdata);
256         imx27_add_fec(NULL);
257 }
258 
259 static void __init mxt_td60_timer_init(void)
260 {
261         mx27_clocks_init(26000000);
262 }
263 
264 MACHINE_START(MXT_TD60, "Maxtrack i-MXT TD60")
265         /* maintainer: Maxtrack Industrial */
266         .atag_offset = 0x100,
267         .map_io = mx27_map_io,
268         .init_early = imx27_init_early,
269         .init_irq = mx27_init_irq,
270         .handle_irq = imx27_handle_irq,
271         .init_time      = mxt_td60_timer_init,
272         .init_machine = mxt_td60_board_init,
273         .restart        = mxc_restart,
274 MACHINE_END
275 

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