2 * linux/arch/arm/mach-omap2/board-h4.c
4 * Copyright (C) 2005 Nokia Corporation
5 * Author: Paul Mundt <paul.mundt@nokia.com>
7 * Modified from mach-omap/omap1/board-generic.c
9 * 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.
14 #include <linux/kernel.h>
15 #include <linux/init.h>
16 #include <linux/platform_device.h>
17 #include <linux/mtd/mtd.h>
18 #include <linux/mtd/partitions.h>
19 #include <linux/delay.h>
20 #include <linux/workqueue.h>
21 #include <linux/input.h>
23 #include <asm/hardware.h>
24 #include <asm/mach-types.h>
25 #include <asm/mach/arch.h>
26 #include <asm/mach/map.h>
27 #include <asm/mach/flash.h>
29 #include <asm/arch/gpio.h>
30 #include <asm/arch/gpioexpander.h>
31 #include <asm/arch/mux.h>
32 #include <asm/arch/usb.h>
33 #include <asm/arch/irda.h>
34 #include <asm/arch/board.h>
35 #include <asm/arch/common.h>
36 #include <asm/arch/keypad.h>
37 #include <asm/arch/menelaus.h>
38 #include <asm/arch/dma.h>
39 #include "prcm-regs.h"
42 #include <asm/delay.h>
44 static unsigned int row_gpios[6] = { 88, 89, 124, 11, 6, 96 };
45 static unsigned int col_gpios[7] = { 90, 91, 100, 36, 12, 97, 98 };
47 static int h4_keymap[] = {
81 static struct mtd_partition h4_partitions[] = {
82 /* bootloader (U-Boot, etc) in first sector */
87 .mask_flags = MTD_WRITEABLE, /* force read-only */
89 /* bootloader params in the next sector */
92 .offset = MTDPART_OFS_APPEND,
99 .offset = MTDPART_OFS_APPEND,
105 .name = "filesystem",
106 .offset = MTDPART_OFS_APPEND,
107 .size = MTDPART_SIZ_FULL,
112 static struct flash_platform_data h4_flash_data = {
113 .map_name = "cfi_probe",
115 .parts = h4_partitions,
116 .nr_parts = ARRAY_SIZE(h4_partitions),
119 static struct resource h4_flash_resource = {
120 .start = H4_CS0_BASE,
121 .end = H4_CS0_BASE + SZ_64M - 1,
122 .flags = IORESOURCE_MEM,
125 static struct platform_device h4_flash_device = {
129 .platform_data = &h4_flash_data,
132 .resource = &h4_flash_resource,
135 static struct resource h4_smc91x_resources[] = {
137 .start = OMAP24XX_ETHR_START, /* Physical */
138 .end = OMAP24XX_ETHR_START + 0xf,
139 .flags = IORESOURCE_MEM,
142 .start = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
143 .end = OMAP_GPIO_IRQ(OMAP24XX_ETHR_GPIO_IRQ),
144 .flags = IORESOURCE_IRQ,
148 static struct platform_device h4_smc91x_device = {
151 .num_resources = ARRAY_SIZE(h4_smc91x_resources),
152 .resource = h4_smc91x_resources,
155 /* Select between the IrDA and aGPS module
157 static int h4_select_irda(struct device *dev, int state)
162 if ((err = read_gpio_expa(&expa, 0x21))) {
163 printk(KERN_ERR "Error reading from I/O expander\n");
167 /* 'P6' enable/disable IRDA_TX and IRDA_RX */
168 if (state & IR_SEL) { /* IrDa */
169 if ((err = write_gpio_expa(expa | 0x01, 0x21))) {
170 printk(KERN_ERR "Error writing to I/O expander\n");
174 if ((err = write_gpio_expa(expa & ~0x01, 0x21))) {
175 printk(KERN_ERR "Error writing to I/O expander\n");
182 static void set_trans_mode(struct work_struct *work)
184 struct omap_irda_config *irda_config =
185 container_of(work, struct omap_irda_config, gpio_expa.work);
186 int mode = irda_config->mode;
190 if ((err = read_gpio_expa(&expa, 0x20)) != 0) {
191 printk(KERN_ERR "Error reading from I/O expander\n");
196 if (!(mode & IR_SIRMODE)) { /* MIR/FIR */
200 if ((err = write_gpio_expa(expa, 0x20)) != 0) {
201 printk(KERN_ERR "Error writing to I/O expander\n");
205 static int h4_transceiver_mode(struct device *dev, int mode)
207 struct omap_irda_config *irda_config = dev->platform_data;
209 irda_config->mode = mode;
210 cancel_delayed_work(&irda_config->gpio_expa);
211 PREPARE_DELAYED_WORK(&irda_config->gpio_expa, set_trans_mode);
212 schedule_delayed_work(&irda_config->gpio_expa, 0);
217 static struct omap_irda_config h4_irda_data = {
218 .transceiver_cap = IR_SIRMODE | IR_MIRMODE | IR_FIRMODE,
219 .transceiver_mode = h4_transceiver_mode,
220 .select_irda = h4_select_irda,
221 .rx_channel = OMAP24XX_DMA_UART3_RX,
222 .tx_channel = OMAP24XX_DMA_UART3_TX,
223 .dest_start = OMAP_UART3_BASE,
224 .src_start = OMAP_UART3_BASE,
225 .tx_trigger = OMAP24XX_DMA_UART3_TX,
226 .rx_trigger = OMAP24XX_DMA_UART3_RX,
229 static struct resource h4_irda_resources[] = {
231 .start = INT_24XX_UART3_IRQ,
232 .end = INT_24XX_UART3_IRQ,
233 .flags = IORESOURCE_IRQ,
237 static struct platform_device h4_irda_device = {
241 .platform_data = &h4_irda_data,
244 .resource = h4_irda_resources,
247 static struct omap_kp_platform_data h4_kp_data = {
251 .keymapsize = ARRAY_SIZE(h4_keymap),
253 .row_gpios = row_gpios,
254 .col_gpios = col_gpios,
257 static struct platform_device h4_kp_device = {
258 .name = "omap-keypad",
261 .platform_data = &h4_kp_data,
265 static struct platform_device h4_lcd_device = {
270 static struct platform_device *h4_devices[] __initdata = {
278 static inline void __init h4_init_smc91x(void)
280 /* Make sure CS1 timings are correct */
281 GPMC_CONFIG1_1 = 0x00011200;
282 GPMC_CONFIG2_1 = 0x001f1f01;
283 GPMC_CONFIG3_1 = 0x00080803;
284 GPMC_CONFIG4_1 = 0x1c091c09;
285 GPMC_CONFIG5_1 = 0x041f1f1f;
286 GPMC_CONFIG6_1 = 0x000004c4;
287 GPMC_CONFIG7_1 = 0x00000f40 | (0x08000000 >> 24);
290 omap_cfg_reg(M15_24XX_GPIO92);
291 if (omap_request_gpio(OMAP24XX_ETHR_GPIO_IRQ) < 0) {
292 printk(KERN_ERR "Failed to request GPIO%d for smc91x IRQ\n",
293 OMAP24XX_ETHR_GPIO_IRQ);
296 omap_set_gpio_direction(OMAP24XX_ETHR_GPIO_IRQ, 1);
299 static void __init omap_h4_init_irq(void)
301 omap2_init_common_hw();
307 static struct omap_uart_config h4_uart_config __initdata = {
308 .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
311 static struct omap_mmc_config h4_mmc_config __initdata = {
321 static struct omap_lcd_config h4_lcd_config __initdata = {
322 .ctrl_name = "internal",
325 static struct omap_board_config_kernel h4_config[] = {
326 { OMAP_TAG_UART, &h4_uart_config },
327 { OMAP_TAG_MMC, &h4_mmc_config },
328 { OMAP_TAG_LCD, &h4_lcd_config },
331 static void __init omap_h4_init(void)
334 * Make sure the serial ports are muxed on at this point.
335 * You have to mux them off in device drivers later on
338 #if defined(CONFIG_OMAP_IR) || defined(CONFIG_OMAP_IR_MODULE)
339 omap_cfg_reg(K15_24XX_UART3_TX);
340 omap_cfg_reg(K14_24XX_UART3_RX);
343 #if defined(CONFIG_KEYBOARD_OMAP) || defined(CONFIG_KEYBOARD_OMAP_MODULE)
344 if (omap_has_menelaus()) {
351 platform_add_devices(h4_devices, ARRAY_SIZE(h4_devices));
352 omap_board_config = h4_config;
353 omap_board_config_size = ARRAY_SIZE(h4_config);
357 static void __init omap_h4_map_io(void)
359 omap2_map_common_io();
362 MACHINE_START(OMAP_H4, "OMAP2420 H4 board")
363 /* Maintainer: Paul Mundt <paul.mundt@nokia.com> */
364 .phys_io = 0x48000000,
365 .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
366 .boot_params = 0x80000100,
367 .map_io = omap_h4_map_io,
368 .init_irq = omap_h4_init_irq,
369 .init_machine = omap_h4_init,
370 .timer = &omap_timer,