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[/] [or1k_soc_on_altera_embedded_dev_kit/] [trunk/] [linux-2.6/] [linux-2.6.24/] [arch/] [arm/] [mach-omap2/] [board-h4.c] - Blame information for rev 3

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1 3 xianfeng 
/*
2 
 * linux/arch/arm/mach-omap2/board-h4.c
3 
 *
4 
 * Copyright (C) 2005 Nokia Corporation
5 
 * Author: Paul Mundt <paul.mundt@nokia.com>
6 
 *
7 
 * Modified from mach-omap/omap1/board-generic.c
8 
 *
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 * This program is free software; you can redistribute it and/or modify
10 
 * it under the terms of the GNU General Public License version 2 as
11 
 * published by the Free Software Foundation.
12 
 */
13 
 
14 
#include <linux/kernel.h>
15 
#include <linux/init.h>
16 
#include <linux/platform_device.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/delay.h>
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#include <linux/workqueue.h>
21 
#include <linux/input.h>
22 
 
23 
#include <asm/hardware.h>
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#include <asm/mach-types.h>
25 
#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
27 
#include <asm/mach/flash.h>
28 
 
29 
#include <asm/arch/gpio.h>
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#include <asm/arch/gpioexpander.h>
31 
#include <asm/arch/mux.h>
32 
#include <asm/arch/usb.h>
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#include <asm/arch/irda.h>
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#include <asm/arch/board.h>
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#include <asm/arch/common.h>
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#include <asm/arch/keypad.h>
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#include <asm/arch/menelaus.h>
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#include <asm/arch/dma.h>
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#include "prcm-regs.h"
40 
 
41 
#include <asm/io.h>
42 
 
43 
static unsigned int row_gpios[6] = { 88, 89, 124, 11, 6, 96 };
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static unsigned int col_gpios[7] = { 90, 91, 100, 36, 12, 97, 98 };
45 
 
46 
static int h4_keymap[] = {
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        KEY(0, 0, KEY_LEFT),
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        KEY(0, 1, KEY_RIGHT),
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        KEY(0, 2, KEY_A),
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        KEY(0, 3, KEY_B),
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        KEY(0, 4, KEY_C),
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        KEY(1, 0, KEY_DOWN),
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        KEY(1, 1, KEY_UP),
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        KEY(1, 2, KEY_E),
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        KEY(1, 3, KEY_F),
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        KEY(1, 4, KEY_G),
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        KEY(2, 0, KEY_ENTER),
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        KEY(2, 1, KEY_I),
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        KEY(2, 2, KEY_J),
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        KEY(2, 3, KEY_K),
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        KEY(2, 4, KEY_3),
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        KEY(3, 0, KEY_M),
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        KEY(3, 1, KEY_N),
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        KEY(3, 2, KEY_O),
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        KEY(3, 3, KEY_P),
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        KEY(3, 4, KEY_Q),
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        KEY(4, 0, KEY_R),
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        KEY(4, 1, KEY_4),
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        KEY(4, 2, KEY_T),
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        KEY(4, 3, KEY_U),
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        KEY(4, 4, KEY_ENTER),
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        KEY(5, 0, KEY_V),
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        KEY(5, 1, KEY_W),
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        KEY(5, 2, KEY_L),
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        KEY(5, 3, KEY_S),
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        KEY(5, 4, KEY_ENTER),
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78 
};
79 
 
80 
static struct mtd_partition h4_partitions[] = {
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        /* bootloader (U-Boot, etc) in first sector */
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        {
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              .name             = "bootloader",
84 
              .offset           = 0,
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              .size             = SZ_128K,
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              .mask_flags       = MTD_WRITEABLE, /* force read-only */
87 
        },
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        /* bootloader params in the next sector */
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        {
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              .name             = "params",
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              .offset           = MTDPART_OFS_APPEND,
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              .size             = SZ_128K,
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              .mask_flags       = 0,
94 
        },
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        /* kernel */
96 
        {
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              .name             = "kernel",
98 
              .offset           = MTDPART_OFS_APPEND,
99 
              .size             = SZ_2M,
100 
              .mask_flags       = 0
101 
        },
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        /* file system */
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        {
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              .name             = "filesystem",
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              .offset           = MTDPART_OFS_APPEND,
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              .size             = MTDPART_SIZ_FULL,
107 
              .mask_flags       = 0
108 
        }
109 
};
110 
 
111 
static struct flash_platform_data h4_flash_data = {
112 
        .map_name       = "cfi_probe",
113 
        .width          = 2,
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        .parts          = h4_partitions,
115 
        .nr_parts       = ARRAY_SIZE(h4_partitions),
116 
};
117 
 
118 
static struct resource h4_flash_resource = {
119 
        .start          = H4_CS0_BASE,
120 
        .end            = H4_CS0_BASE + SZ_64M - 1,
121 
        .flags          = IORESOURCE_MEM,
122 
};
123 
 
124 
static struct platform_device h4_flash_device = {
125 
        .name           = "omapflash",
126 
        .id             = 0,
127 
        .dev            = {
128 
                .platform_data  = &h4_flash_data,
129 
        },
130 
        .num_resources  = 1,
131 
        .resource       = &h4_flash_resource,
132 
};
133 
 
134 
/* Select between the IrDA and aGPS module
135 
 */
136 
static int h4_select_irda(struct device *dev, int state)
137 
{
138 
        unsigned char expa;
139 
        int err = 0;
140 
 
141 
        if ((err = read_gpio_expa(&expa, 0x21))) {
142 
                printk(KERN_ERR "Error reading from I/O expander\n");
143 
                return err;
144 
        }
145 
 
146 
        /* 'P6' enable/disable IRDA_TX and IRDA_RX */
147 
        if (state & IR_SEL) {   /* IrDa */
148 
                if ((err = write_gpio_expa(expa | 0x01, 0x21))) {
149 
                        printk(KERN_ERR "Error writing to I/O expander\n");
150 
                        return err;
151 
                }
152 
        } else {
153 
                if ((err = write_gpio_expa(expa & ~0x01, 0x21))) {
154 
                        printk(KERN_ERR "Error writing to I/O expander\n");
155 
                        return err;
156 
                }
157 
        }
158 
        return err;
159 
}
160 
 
161 
static void set_trans_mode(struct work_struct *work)
162 
{
163 
        struct omap_irda_config *irda_config =
164 
                container_of(work, struct omap_irda_config, gpio_expa.work);
165 
        int mode = irda_config->mode;
166 
        unsigned char expa;
167 
        int err = 0;
168 
 
169 
        if ((err = read_gpio_expa(&expa, 0x20)) != 0) {
170 
                printk(KERN_ERR "Error reading from I/O expander\n");
171 
        }
172 
 
173 
        expa &= ~0x01;
174 
 
175 
        if (!(mode & IR_SIRMODE)) { /* MIR/FIR */
176 
                expa |= 0x01;
177 
        }
178 
 
179 
        if ((err = write_gpio_expa(expa, 0x20)) != 0) {
180 
                printk(KERN_ERR "Error writing to I/O expander\n");
181 
        }
182 
}
183 
 
184 
static int h4_transceiver_mode(struct device *dev, int mode)
185 
{
186 
        struct omap_irda_config *irda_config = dev->platform_data;
187 
 
188 
        irda_config->mode = mode;
189 
        cancel_delayed_work(&irda_config->gpio_expa);
190 
        PREPARE_DELAYED_WORK(&irda_config->gpio_expa, set_trans_mode);
191 
        schedule_delayed_work(&irda_config->gpio_expa, 0);
192 
 
193 
        return 0;
194 
}
195 
 
196 
static struct omap_irda_config h4_irda_data = {
197 
        .transceiver_cap        = IR_SIRMODE | IR_MIRMODE | IR_FIRMODE,
198 
        .transceiver_mode       = h4_transceiver_mode,
199 
        .select_irda            = h4_select_irda,
200 
        .rx_channel             = OMAP24XX_DMA_UART3_RX,
201 
        .tx_channel             = OMAP24XX_DMA_UART3_TX,
202 
        .dest_start             = OMAP_UART3_BASE,
203 
        .src_start              = OMAP_UART3_BASE,
204 
        .tx_trigger             = OMAP24XX_DMA_UART3_TX,
205 
        .rx_trigger             = OMAP24XX_DMA_UART3_RX,
206 
};
207 
 
208 
static struct resource h4_irda_resources[] = {
209 
        [0] = {
210 
                .start  = INT_24XX_UART3_IRQ,
211 
                .end    = INT_24XX_UART3_IRQ,
212 
                .flags  = IORESOURCE_IRQ,
213 
        },
214 
};
215 
 
216 
static struct platform_device h4_irda_device = {
217 
        .name           = "omapirda",
218 
        .id             = -1,
219 
        .dev            = {
220 
                .platform_data  = &h4_irda_data,
221 
        },
222 
        .num_resources  = 1,
223 
        .resource       = h4_irda_resources,
224 
};
225 
 
226 
static struct omap_kp_platform_data h4_kp_data = {
227 
        .rows           = 6,
228 
        .cols           = 7,
229 
        .keymap         = h4_keymap,
230 
        .keymapsize     = ARRAY_SIZE(h4_keymap),
231 
        .rep            = 1,
232 
        .row_gpios      = row_gpios,
233 
        .col_gpios      = col_gpios,
234 
};
235 
 
236 
static struct platform_device h4_kp_device = {
237 
        .name           = "omap-keypad",
238 
        .id             = -1,
239 
        .dev            = {
240 
                .platform_data = &h4_kp_data,
241 
        },
242 
};
243 
 
244 
static struct platform_device h4_lcd_device = {
245 
        .name           = "lcd_h4",
246 
        .id             = -1,
247 
};
248 
 
249 
static struct platform_device *h4_devices[] __initdata = {
250 
        &h4_flash_device,
251 
        &h4_irda_device,
252 
        &h4_kp_device,
253 
        &h4_lcd_device,
254 
};
255 
 
256 
static inline void __init h4_init_debug(void)
257 
{
258 
        /* Make sure CS1 timings are correct */
259 
        GPMC_CONFIG1_1 = 0x00011200;
260 
        GPMC_CONFIG2_1 = 0x001f1f01;
261 
        GPMC_CONFIG3_1 = 0x00080803;
262 
        GPMC_CONFIG4_1 = 0x1c091c09;
263 
        GPMC_CONFIG5_1 = 0x041f1f1f;
264 
        GPMC_CONFIG6_1 = 0x000004c4;
265 
        GPMC_CONFIG7_1 = 0x00000f40 | (0x08000000 >> 24);
266 
        udelay(100);
267 
 
268 
        omap_cfg_reg(M15_24XX_GPIO92);
269 
        if (debug_card_init(cs_mem_base, OMAP24XX_ETHR_GPIO_IRQ) < 0)
270 
                gpmc_cs_free(eth_cs);
271 
}
272 
 
273 
static void __init omap_h4_init_irq(void)
274 
{
275 
        omap2_init_common_hw();
276 
        omap_init_irq();
277 
        omap_gpio_init();
278 
}
279 
 
280 
static struct omap_uart_config h4_uart_config __initdata = {
281 
        .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
282 
};
283 
 
284 
static struct omap_mmc_config h4_mmc_config __initdata = {
285 
        .mmc [0] = {
286 
                .enabled        = 1,
287 
                .wire4          = 1,
288 
                .wp_pin         = -1,
289 
                .power_pin      = -1,
290 
                .switch_pin     = -1,
291 
        },
292 
};
293 
 
294 
static struct omap_lcd_config h4_lcd_config __initdata = {
295 
        .ctrl_name      = "internal",
296 
};
297 
 
298 
static struct omap_board_config_kernel h4_config[] = {
299 
        { OMAP_TAG_UART,        &h4_uart_config },
300 
        { OMAP_TAG_MMC,         &h4_mmc_config },
301 
        { OMAP_TAG_LCD,         &h4_lcd_config },
302 
};
303 
 
304 
static void __init omap_h4_init(void)
305 
{
306 
        /*
307 
         * Make sure the serial ports are muxed on at this point.
308 
         * You have to mux them off in device drivers later on
309 
         * if not needed.
310 
         */
311 
#if defined(CONFIG_OMAP_IR) || defined(CONFIG_OMAP_IR_MODULE)
312 
        omap_cfg_reg(K15_24XX_UART3_TX);
313 
        omap_cfg_reg(K14_24XX_UART3_RX);
314 
#endif
315 
 
316 
#if defined(CONFIG_KEYBOARD_OMAP) || defined(CONFIG_KEYBOARD_OMAP_MODULE)
317 
        if (omap_has_menelaus()) {
318 
                row_gpios[5] = 0;
319 
                col_gpios[2] = 15;
320 
                col_gpios[6] = 18;
321 
        }
322 
#endif
323 
 
324 
        platform_add_devices(h4_devices, ARRAY_SIZE(h4_devices));
325 
        omap_board_config = h4_config;
326 
        omap_board_config_size = ARRAY_SIZE(h4_config);
327 
        omap_serial_init();
328 
}
329 
 
330 
static void __init omap_h4_map_io(void)
331 
{
332 
        omap2_map_common_io();
333 
}
334 
 
335 
MACHINE_START(OMAP_H4, "OMAP2420 H4 board")
336 
        /* Maintainer: Paul Mundt <paul.mundt@nokia.com> */
337 
        .phys_io        = 0x48000000,
338 
        .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
339 
        .boot_params    = 0x80000100,
340 
        .map_io         = omap_h4_map_io,
341 
        .init_irq       = omap_h4_init_irq,
342 
        .init_machine   = omap_h4_init,
343 
        .timer          = &omap_timer,
344 
MACHINE_END

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