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/mtd/physmap.h>
20 #include <linux/delay.h>
21 #include <linux/workqueue.h>
22 #include <linux/i2c.h>
23 #include <linux/i2c/at24.h>
24 #include <linux/input.h>
25 #include <linux/err.h>
26 #include <linux/clk.h>
29 #include <mach/hardware.h>
30 #include <asm/mach-types.h>
31 #include <asm/mach/arch.h>
32 #include <asm/mach/map.h>
34 #include <plat/control.h>
35 #include <mach/gpio.h>
38 #include <plat/board.h>
39 #include <plat/common.h>
40 #include <plat/keypad.h>
41 #include <plat/menelaus.h>
43 #include <plat/gpmc.h>
46 #define H4_SMC91X_CS 1
48 #define H4_ETHR_GPIO_IRQ 92
50 static unsigned int row_gpios[6] = { 88, 89, 124, 11, 6, 96 };
51 static unsigned int col_gpios[7] = { 90, 91, 100, 36, 12, 97, 98 };
53 static int h4_keymap[] = {
87 static struct mtd_partition h4_partitions[] = {
88 /* bootloader (U-Boot, etc) in first sector */
93 .mask_flags = MTD_WRITEABLE, /* force read-only */
95 /* bootloader params in the next sector */
98 .offset = MTDPART_OFS_APPEND,
105 .offset = MTDPART_OFS_APPEND,
111 .name = "filesystem",
112 .offset = MTDPART_OFS_APPEND,
113 .size = MTDPART_SIZ_FULL,
118 static struct physmap_flash_data h4_flash_data = {
120 .parts = h4_partitions,
121 .nr_parts = ARRAY_SIZE(h4_partitions),
124 static struct resource h4_flash_resource = {
125 .flags = IORESOURCE_MEM,
128 static struct platform_device h4_flash_device = {
129 .name = "physmap-flash",
132 .platform_data = &h4_flash_data,
135 .resource = &h4_flash_resource,
138 static struct omap_kp_platform_data h4_kp_data = {
142 .keymapsize = ARRAY_SIZE(h4_keymap),
144 .row_gpios = row_gpios,
145 .col_gpios = col_gpios,
148 static struct platform_device h4_kp_device = {
149 .name = "omap-keypad",
152 .platform_data = &h4_kp_data,
156 static struct platform_device h4_lcd_device = {
161 static struct platform_device *h4_devices[] __initdata = {
167 /* 2420 Sysboot setup (2430 is different) */
168 static u32 get_sysboot_value(void)
170 return (omap_ctrl_readl(OMAP24XX_CONTROL_STATUS) &
171 (OMAP2_SYSBOOT_5_MASK | OMAP2_SYSBOOT_4_MASK |
172 OMAP2_SYSBOOT_3_MASK | OMAP2_SYSBOOT_2_MASK |
173 OMAP2_SYSBOOT_1_MASK | OMAP2_SYSBOOT_0_MASK));
176 /* H4-2420's always used muxed mode, H4-2422's always use non-muxed
178 * Note: OMAP-GIT doesn't correctly do is_cpu_omap2422 and is_cpu_omap2423
179 * correctly. The macro needs to look at production_id not just hawkeye.
181 static u32 is_gpmc_muxed(void)
184 mux = get_sysboot_value();
185 if ((mux & 0xF) == 0xd)
186 return 1; /* NAND config (could be either) */
187 if (mux & 0x2) /* if mux'ed */
193 static inline void __init h4_init_debug(void)
196 unsigned long cs_mem_base;
197 unsigned int muxed, rate;
198 struct clk *gpmc_fck;
200 eth_cs = H4_SMC91X_CS;
202 gpmc_fck = clk_get(NULL, "gpmc_fck"); /* Always on ENABLE_ON_INIT */
203 if (IS_ERR(gpmc_fck)) {
208 clk_enable(gpmc_fck);
209 rate = clk_get_rate(gpmc_fck);
210 clk_disable(gpmc_fck);
218 /* Make sure CS1 timings are correct */
219 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG1,
222 if (rate >= 160000000) {
223 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f01);
224 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080803);
225 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1c0b1c0a);
226 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
227 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
228 } else if (rate >= 130000000) {
229 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
230 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
231 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
232 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x041f1F1F);
233 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000004C4);
234 } else {/* rate = 100000000 */
235 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG2, 0x001f1f00);
236 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG3, 0x00080802);
237 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG4, 0x1C091C09);
238 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG5, 0x031A1F1F);
239 gpmc_cs_write_reg(eth_cs, GPMC_CS_CONFIG6, 0x000003C2);
242 if (gpmc_cs_request(eth_cs, SZ_16M, &cs_mem_base) < 0) {
243 printk(KERN_ERR "Failed to request GPMC mem for smc91x\n");
249 omap_cfg_reg(M15_24XX_GPIO92);
250 if (debug_card_init(cs_mem_base, H4_ETHR_GPIO_IRQ) < 0)
251 gpmc_cs_free(eth_cs);
254 clk_disable(gpmc_fck);
258 static void __init h4_init_flash(void)
262 if (gpmc_cs_request(H4_FLASH_CS, SZ_64M, &base) < 0) {
263 printk("Can't request GPMC CS for flash\n");
266 h4_flash_resource.start = base;
267 h4_flash_resource.end = base + SZ_64M - 1;
270 static struct omap_lcd_config h4_lcd_config __initdata = {
271 .ctrl_name = "internal",
274 static struct omap_usb_config h4_usb_config __initdata = {
275 #ifdef CONFIG_MACH_OMAP2_H4_USB1
276 /* NOTE: usb1 could also be used with 3 wire signaling */
280 #ifdef CONFIG_MACH_OMAP_H4_OTG
281 /* S1.10 ON -- USB OTG port
282 * usb0 switched to Mini-AB port and isp1301 transceiver;
283 * S2.POS3 = OFF, S2.POS4 = ON ... to allow battery charging
287 #ifdef CONFIG_USB_GADGET_OMAP
288 /* use OTG cable, or standard A-to-MiniB */
289 .hmc_mode = 0x14, /* 0:dev/otg 1:host 2:disable */
290 #elif defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
291 /* use OTG cable, or NONSTANDARD (B-to-MiniB) */
292 .hmc_mode = 0x11, /* 0:host 1:host 2:disable */
296 /* S1.10 OFF -- usb "download port"
297 * usb0 switched to Mini-B port and isp1105 transceiver;
298 * S2.POS3 = ON, S2.POS4 = OFF ... to enable battery charging
302 /* .hmc_mode = 0x14,*/ /* 0:dev 1:host 2:disable */
303 .hmc_mode = 0x00, /* 0:dev|otg 1:disable 2:disable */
307 static struct omap_board_config_kernel h4_config[] = {
308 { OMAP_TAG_LCD, &h4_lcd_config },
311 static void __init omap_h4_init_irq(void)
313 omap_board_config = h4_config;
314 omap_board_config_size = ARRAY_SIZE(h4_config);
315 omap2_init_common_hw(NULL, NULL);
321 static struct at24_platform_data m24c01 = {
322 .byte_len = SZ_1K / 8,
326 static struct i2c_board_info __initdata h4_i2c_board_info[] = {
328 I2C_BOARD_INFO("isp1301_omap", 0x2d),
329 .irq = OMAP_GPIO_IRQ(125),
331 { /* EEPROM on mainboard */
332 I2C_BOARD_INFO("24c01", 0x52),
333 .platform_data = &m24c01,
335 { /* EEPROM on cpu card */
336 I2C_BOARD_INFO("24c01", 0x57),
337 .platform_data = &m24c01,
341 static void __init omap_h4_init(void)
344 * Make sure the serial ports are muxed on at this point.
345 * You have to mux them off in device drivers later on
348 #if defined(CONFIG_OMAP_IR) || defined(CONFIG_OMAP_IR_MODULE)
349 omap_cfg_reg(K15_24XX_UART3_TX);
350 omap_cfg_reg(K14_24XX_UART3_RX);
353 #if defined(CONFIG_KEYBOARD_OMAP) || defined(CONFIG_KEYBOARD_OMAP_MODULE)
354 if (omap_has_menelaus()) {
361 i2c_register_board_info(1, h4_i2c_board_info,
362 ARRAY_SIZE(h4_i2c_board_info));
364 platform_add_devices(h4_devices, ARRAY_SIZE(h4_devices));
365 omap_usb_init(&h4_usb_config);
369 static void __init omap_h4_map_io(void)
371 omap2_set_globals_242x();
372 omap242x_map_common_io();
375 MACHINE_START(OMAP_H4, "OMAP2420 H4 board")
376 /* Maintainer: Paul Mundt <paul.mundt@nokia.com> */
377 .phys_io = 0x48000000,
378 .io_pg_offst = ((0xfa000000) >> 18) & 0xfffc,
379 .boot_params = 0x80000100,
380 .map_io = omap_h4_map_io,
381 .reserve = omap_reserve,
382 .init_irq = omap_h4_init_irq,
383 .init_machine = omap_h4_init,
384 .timer = &omap_timer,