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>
22 #include <linux/err.h>
23 #include <linux/clk.h>
24 #include <linux/i2c.h>
25 #include <linux/spi/spi.h>
26 #include <linux/spi/tsc210x.h>
28 #include <asm/hardware.h>
29 #include <asm/mach-types.h>
30 #include <asm/mach/arch.h>
31 #include <asm/mach/map.h>
32 #include <asm/mach/flash.h>
34 #include <asm/arch/gpio.h>
35 #include <asm/arch/gpioexpander.h>
36 #include <asm/arch/mux.h>
37 #include <asm/arch/usb.h>
38 #include <asm/arch/irda.h>
39 #include <asm/arch/board.h>
40 #include <asm/arch/common.h>
41 #include <asm/arch/keypad.h>
42 #include <asm/arch/menelaus.h>
43 #include <asm/arch/dma.h>
44 #include <asm/arch/gpmc.h>
49 #define H4_SMC91X_CS 1
51 static unsigned int row_gpios[6] = { 88, 89, 124, 11, 6, 96 };
52 static unsigned int col_gpios[7] = { 90, 91, 100, 36, 12, 97, 98 };
54 static int h4_keymap[] = {
88 static struct mtd_partition h4_partitions[] = {
89 /* bootloader (U-Boot, etc) in first sector */
94 .mask_flags = MTD_WRITEABLE, /* force read-only */
96 /* bootloader params in the next sector */
99 .offset = MTDPART_OFS_APPEND,
106 .offset = MTDPART_OFS_APPEND,
112 .name = "filesystem",
113 .offset = MTDPART_OFS_APPEND,
114 .size = MTDPART_SIZ_FULL,
119 static struct flash_platform_data h4_flash_data = {
120 .map_name = "cfi_probe",
122 .parts = h4_partitions,
123 .nr_parts = ARRAY_SIZE(h4_partitions),
126 static struct resource h4_flash_resource = {
127 .flags = IORESOURCE_MEM,
130 static struct platform_device h4_flash_device = {
134 .platform_data = &h4_flash_data,
137 .resource = &h4_flash_resource,
140 /* Select between the IrDA and aGPS module
142 #if defined(CONFIG_OMAP_IR) || defined(CONFIG_OMAP_IR_MODULE)
143 static int h4_select_irda(struct device *dev, int state)
148 if ((err = read_gpio_expa(&expa, 0x21))) {
149 printk(KERN_ERR "Error reading from I/O expander\n");
153 /* 'P6' enable/disable IRDA_TX and IRDA_RX */
154 if (state & IR_SEL) { /* IrDa */
155 if ((err = write_gpio_expa(expa | 0x01, 0x21))) {
156 printk(KERN_ERR "Error writing to I/O expander\n");
160 if ((err = write_gpio_expa(expa & ~0x01, 0x21))) {
161 printk(KERN_ERR "Error writing to I/O expander\n");
168 static void set_trans_mode(struct work_struct *work)
170 struct omap_irda_config *irda_config =
171 container_of(work, struct omap_irda_config, gpio_expa.work);
172 int mode = irda_config->mode;
176 if ((err = read_gpio_expa(&expa, 0x20)) != 0) {
177 printk(KERN_ERR "Error reading from I/O expander\n");
182 if (!(mode & IR_SIRMODE)) { /* MIR/FIR */
186 if ((err = write_gpio_expa(expa, 0x20)) != 0) {
187 printk(KERN_ERR "Error writing to I/O expander\n");
191 static int h4_transceiver_mode(struct device *dev, int mode)
193 struct omap_irda_config *irda_config = dev->platform_data;
195 irda_config->mode = mode;
196 cancel_delayed_work(&irda_config->gpio_expa);
197 PREPARE_DELAYED_WORK(&irda_config->gpio_expa, set_trans_mode);
198 schedule_delayed_work(&irda_config->gpio_expa, 0);
203 static int h4_select_irda(struct device *dev, int state) { return 0; }
204 static int h4_transceiver_mode(struct device *dev, int mode) { return 0; }
207 static struct omap_irda_config h4_irda_data = {
208 .transceiver_cap = IR_SIRMODE | IR_MIRMODE | IR_FIRMODE,
209 .transceiver_mode = h4_transceiver_mode,
210 .select_irda = h4_select_irda,
211 .rx_channel = OMAP24XX_DMA_UART3_RX,
212 .tx_channel = OMAP24XX_DMA_UART3_TX,
213 .dest_start = OMAP_UART3_BASE,
214 .src_start = OMAP_UART3_BASE,
215 .tx_trigger = OMAP24XX_DMA_UART3_TX,
216 .rx_trigger = OMAP24XX_DMA_UART3_RX,
219 static struct resource h4_irda_resources[] = {
221 .start = INT_24XX_UART3_IRQ,
222 .end = INT_24XX_UART3_IRQ,
223 .flags = IORESOURCE_IRQ,
227 static struct platform_device h4_irda_device = {
231 .platform_data = &h4_irda_data,
234 .resource = h4_irda_resources,
237 static struct omap_kp_platform_data h4_kp_data = {
241 .keymapsize = ARRAY_SIZE(h4_keymap),
243 .row_gpios = row_gpios,
244 .col_gpios = col_gpios,
247 static struct platform_device h4_kp_device = {
248 .name = "omap-keypad",
251 .platform_data = &h4_kp_data,
255 static struct platform_device h4_lcd_device = {
260 static struct platform_device *h4_devices[] __initdata = {
267 /* 2420 Sysboot setup (2430 is different) */
268 static u32 get_sysboot_value(void)
270 return (omap_readl(OMAP24XX_CONTROL_STATUS) & 0xFFF);
273 /* FIXME: This function should be moved to some other file, gpmc.c? */
275 /* H4-2420's always used muxed mode, H4-2422's always use non-muxed
277 * Note: OMAP-GIT doesn't correctly do is_cpu_omap2422 and is_cpu_omap2423
278 * correctly. The macro needs to look at production_id not just hawkeye.
280 static u32 is_gpmc_muxed(void)
283 mux = get_sysboot_value();
284 if ((mux & 0xF) == 0xd)
285 return 1; /* NAND config (could be either) */
286 if (mux & 0x2) /* if mux'ed */
292 static inline void __init h4_init_debug(void)
295 unsigned long cs_mem_base;
296 unsigned int muxed, rate;
299 eth_cs = H4_SMC91X_CS;
301 l3ck = clk_get(NULL, "core_l3_ck");
305 rate = clk_get_rate(l3ck);
312 /* Make sure CS1 timings are correct */
313 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1,
316 if (rate >= 160000000) {
317 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01);
318 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803);
319 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a);
320 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
321 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
322 } else if (rate >= 130000000) {
323 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
324 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
325 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
326 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
327 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
328 } else {/* rate = 100000000 */
329 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
330 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
331 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
332 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F);
333 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2);
336 if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
337 printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");
343 omap_cfg_reg(M15_24XX_GPIO92);
344 if (debug_card_init(cs_mem_base, OMAP24XX_ETHR_GPIO_IRQ) < 0)
345 gpmc_cs_free(eth_cs);
348 static void __init h4_init_flash(void)
352 if (gpmc_cs_request(H4_FLASH_CS, SZ_64M, &base) < 0) {
353 printk("Can't request GPMC CS for flash\n");
356 h4_flash_resource.start = base;
357 h4_flash_resource.end = base + SZ_64M - 1;
360 static void __init omap_h4_init_irq(void)
362 omap2_init_common_hw();
368 static struct omap_uart_config h4_uart_config __initdata = {
369 #ifdef CONFIG_MACH_OMAP2_H4_USB1
370 .enabled_uarts = ((1 << 0) | (1 << 1)),
372 .enabled_uarts = ((1 << 0) | (1 << 1) | (1 << 2)),
376 static struct omap_mmc_config h4_mmc_config __initdata = {
386 static struct omap_lcd_config h4_lcd_config __initdata = {
387 .ctrl_name = "internal",
390 static struct omap_usb_config h4_usb_config __initdata = {
391 #ifdef CONFIG_MACH_OMAP2_H4_USB1
392 /* NOTE: usb1 could also be used with 3 wire signaling */
396 #ifdef CONFIG_MACH_OMAP_H4_OTG
397 /* S1.10 ON -- USB OTG port
398 * usb0 switched to Mini-AB port and isp1301 transceiver;
399 * S2.POS3 = OFF, S2.POS4 = ON ... to allow battery charging
403 #ifdef CONFIG_USB_GADGET_OMAP
404 /* use OTG cable, or standard A-to-MiniB */
405 .hmc_mode = 0x14, /* 0:dev/otg 1:host 2:disable */
406 #elif defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
407 /* use OTG cable, or NONSTANDARD (B-to-MiniB) */
408 .hmc_mode = 0x11, /* 0:host 1:host 2:disable */
412 /* S1.10 OFF -- usb "download port"
413 * usb0 switched to Mini-B port and isp1105 transceiver;
414 * S2.POS3 = ON, S2.POS4 = OFF ... to enable battery charging
418 // .hmc_mode = 0x14, /* 0:dev 1:host 2:disable */
419 .hmc_mode = 0x00, /* 0:dev|otg 1:disable 2:disable */
423 /* ----------------------------------------------------------------------- */
425 static struct tsc210x_config tsc_platform_data = {
427 .monitor = TSC_VBAT | TSC_TEMP,
428 /* REVISIT temp calibration data -- board-specific; from EEPROM? */
429 .mclk = "sys_clkout",
432 static struct spi_board_info h4_spi_board_info[] __initdata = {
434 .modalias = "tsc2101",
438 .irq = OMAP_GPIO_IRQ(93),
439 .max_speed_hz = 16000000,
440 .platform_data = &tsc_platform_data,
443 /* nCS1 -- to lcd board, but unused
444 * nCS2 -- to WLAN/miniPCI
448 /* ----------------------------------------------------------------------- */
450 static struct omap_board_config_kernel h4_config[] __initdata = {
451 { OMAP_TAG_UART, &h4_uart_config },
452 { OMAP_TAG_MMC, &h4_mmc_config },
453 { OMAP_TAG_LCD, &h4_lcd_config },
454 { OMAP_TAG_USB, &h4_usb_config },
457 #ifdef CONFIG_MACH_OMAP_H4_TUSB
459 #include <linux/usb/musb.h>
461 static struct musb_hdrc_platform_data tusb_data = {
463 .min_power = 25, /* x2 = 50 mA drawn from VBUS as peripheral */
465 /* 1.8V supplied by Menelaus, other voltages supplied by VBAT;
470 static void __init tusb_evm_setup(void)
472 static char announce[] __initdata =
473 KERN_INFO "TUSB 6010 EVM\n";
475 unsigned dmachan = 0;
477 /* There are at least 32 different combinations of boards that
478 * are loosely called "H4", with a 2420 ... different OMAP chip
479 * revisions (with pin mux changes for DMAREQ, GPMC errata, etc),
480 * modifications of the CPU board, mainboard, EVM, TUSB etc.
481 * Plus omap2422, omap2423, etc.
483 * So you might need to tweak this setup to make the TUSB EVM
484 * behave on your particular setup ...
487 /* Already set up: GPMC AD[0..15], CLK, nOE, nWE, nADV_ALE */
488 omap_cfg_reg(E2_GPMC_NCS2);
489 omap_cfg_reg(L2_GPMC_NCS7);
490 omap_cfg_reg(M1_GPMC_WAIT2);
492 switch ((system_rev >> 8) & 0x0f) {
495 /* Assume early board revision without optional ES2.0
496 * rework to swap J15 & AA10 so DMAREQ0 works
498 omap_cfg_reg(AA10_242X_GPIO13);
500 // omap_cfg_reg(J15_24XX_DMAREQ0);
503 /* Later Menelaus boards can support all 6 DMA request
504 * lines, at the price of boot flash A23-A26.
506 omap_cfg_reg(J15_24XX_GPIO99);
508 dmachan = (1 << 1) | (1 << 0);
509 #if !(defined(CONFIG_MTD_OMAP_NOR) || defined(CONFIG_MTD_OMAP_NOR_MODULE))
510 dmachan |= (1 << 5) | (1 << 4) (1 << 3) | (1 << 2);
515 if (tusb6010_setup_interface(&tusb_data,
516 TUSB6010_REFCLK_24, /* waitpin */ 2,
517 /* async cs */ 2, /* sync cs */ 7,
524 static struct i2c_board_info __initdata h4_i2c_board_info[] = {
526 I2C_BOARD_INFO("rtc-rs5c372", 0x32),
528 /* no IRQ wired to OMAP; nINTB goes to AGPS */
531 I2C_BOARD_INFO("menelaus", 0x72),
532 .irq = INT_24XX_SYS_NIRQ,
536 static void __init omap_h4_init(void)
539 * Make sure the serial ports are muxed on at this point.
540 * You have to mux them off in device drivers later on
543 #if defined(CONFIG_OMAP_IR) || defined(CONFIG_OMAP_IR_MODULE)
544 omap_cfg_reg(K15_24XX_UART3_TX);
545 omap_cfg_reg(K14_24XX_UART3_RX);
548 #if defined(CONFIG_KEYBOARD_OMAP) || defined(CONFIG_KEYBOARD_OMAP_MODULE)
549 if (omap_has_menelaus()) {
556 #ifdef CONFIG_MACH_OMAP2_H4_USB1
557 /* S3.3 controls whether these pins are for UART2 or USB1 */
558 omap_cfg_reg(N14_24XX_USB1_SE0);
559 omap_cfg_reg(P15_24XX_USB1_DAT);
560 omap_cfg_reg(W20_24XX_USB1_TXEN);
561 omap_cfg_reg(V19_24XX_USB1_RCV);
564 /* Menelaus interrupt */
565 omap_cfg_reg(W19_24XX_SYS_NIRQ);
567 i2c_register_board_info(1, h4_i2c_board_info,
568 ARRAY_SIZE(h4_i2c_board_info));
570 platform_add_devices(h4_devices, ARRAY_SIZE(h4_devices));
571 omap_board_config = h4_config;
572 omap_board_config_size = ARRAY_SIZE(h4_config);
575 /* smc91x, debug leds, ps/2, extra uarts */
578 #ifdef CONFIG_MACH_OMAP_H4_TUSB
582 /* defaults seem ok for:
583 * omap_cfg_reg(U18_24XX_SPI1_SCK);
584 * omap_cfg_reg(V20_24XX_SPI1_MOSI);
585 * omap_cfg_reg(T18_24XX_SPI1_MISO);
586 * omap_cfg_reg(U19_24XX_SPI1_NCS0);
590 omap_cfg_reg(P20_24XX_GPIO93);
591 gpio_request(93, "tsc_irq");
592 gpio_direction_input(93);
594 omap_cfg_reg(W14_24XX_SYS_CLKOUT); /* mclk */
595 /* defaults seem ok for:
596 * omap_cfg_reg(Y15_EAC_AC_SCLK); // bclk
597 * omap_cfg_reg(R14_EAC_AC_FS);
598 * omap_cfg_reg(V15_EAC_AC_DOUT);
599 * omap_cfg_reg(W15_EAC_AC_DIN);
602 spi_register_board_info(h4_spi_board_info,
603 ARRAY_SIZE(h4_spi_board_info));
606 static void __init omap_h4_map_io(void)
608 omap2_map_common_io();
611 MACHINE_START(OMAP_H4, "OMAP2420 H4 board")
612 /* Maintainer: Paul Mundt <paul.mundt@nokia.com> */
613 .phys_io = 0x48000000,
614 .io_pg_offst = ((0xd8000000) >> 18) & 0xfffc,
615 .boot_params = 0x80000100,
616 .map_io = omap_h4_map_io,
617 .init_irq = omap_h4_init_irq,
618 .init_machine = omap_h4_init,
619 .timer = &omap_timer,