2 * Maintainer : Steve Sakoman <steve@sakoman.com>
4 * Derived from Beagle Board, 3430 SDP, and OMAP3EVM code by
5 * Richard Woodruff <r-woodruff2@ti.com>
6 * Syed Mohammed Khasim <khasim@ti.com>
7 * Sunil Kumar <sunilsaini05@gmail.com>
8 * Shashi Ranjan <shashiranjanmca05@gmail.com>
10 * (C) Copyright 2004-2008
11 * Texas Instruments, <www.ti.com>
13 * SPDX-License-Identifier: GPL-2.0+
20 #include <linux/mtd/nand.h>
22 #include <asm/arch/mmc_host_def.h>
23 #include <asm/arch/mux.h>
24 #include <asm/arch/mem.h>
25 #include <asm/arch/sys_proto.h>
27 #include <asm/mach-types.h>
30 #ifdef CONFIG_USB_EHCI
32 #include <asm/ehci-omap.h>
35 DECLARE_GLOBAL_DATA_PTR;
37 #define TWL4030_I2C_BUS 0
38 #define EXPANSION_EEPROM_I2C_BUS 2
39 #define EXPANSION_EEPROM_I2C_ADDRESS 0x51
41 #define GUMSTIX_EMPTY_EEPROM 0x0
43 #define GUMSTIX_SUMMIT 0x01000200
44 #define GUMSTIX_TOBI 0x02000200
45 #define GUMSTIX_TOBI_DUO 0x03000200
46 #define GUMSTIX_PALO35 0x04000200
47 #define GUMSTIX_PALO43 0x05000200
48 #define GUMSTIX_CHESTNUT43 0x06000200
49 #define GUMSTIX_PINTO 0x07000200
50 #define GUMSTIX_GALLOP43 0x08000200
51 #define GUMSTIX_ALTO35 0x09000200
52 #define GUMSTIX_STAGECOACH 0x0A000200
53 #define GUMSTIX_THUMBO 0x0B000200
54 #define GUMSTIX_TURTLECORE 0x0C000200
55 #define GUMSTIX_ARBOR43C 0x0D000200
57 #define ETTUS_USRP_E 0x01000300
59 #define GUMSTIX_NO_EEPROM 0xffffffff
62 unsigned int device_vendor;
63 unsigned char revision;
64 unsigned char content;
68 } expansion_config = {0x0};
70 static const struct ns16550_platdata overo_serial = {
71 .base = OMAP34XX_UART3,
73 .clock = V_NS16550_CLK,
74 .fcr = UART_FCR_DEFVAL,
77 U_BOOT_DEVICE(overo_uart) = {
83 * Routine: get_sdio2_config
84 * Description: Return information about the wifi module connection
85 * Returns 0 if the module connects though a level translator
86 * Returns 1 if the module connects directly
88 int get_sdio2_config(void)
92 if (!gpio_request(130, "") && !gpio_request(139, "")) {
94 gpio_direction_output(130, 0);
95 gpio_direction_input(139);
98 gpio_set_value(130, 0);
99 if (gpio_get_value(139) == 0) {
100 gpio_set_value(130, 1);
101 if (gpio_get_value(139) == 1)
105 gpio_direction_input(130);
107 puts("Error: unable to acquire sdio2 clk GPIOs\n");
115 * Routine: get_expansion_id
116 * Description: This function checks for expansion board by checking I2C
117 * bus 2 for the availability of an AT24C01B serial EEPROM.
118 * returns the device_vendor field from the EEPROM
120 unsigned int get_expansion_id(void)
122 if (expansion_config.device_vendor != 0x0)
123 return expansion_config.device_vendor;
125 i2c_set_bus_num(EXPANSION_EEPROM_I2C_BUS);
127 /* return GUMSTIX_NO_EEPROM if eeprom doesn't respond */
128 if (i2c_probe(EXPANSION_EEPROM_I2C_ADDRESS) == 1) {
129 i2c_set_bus_num(TWL4030_I2C_BUS);
130 return GUMSTIX_NO_EEPROM;
133 /* read configuration data */
134 i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 1, (u8 *)&expansion_config,
135 sizeof(expansion_config));
137 i2c_set_bus_num(TWL4030_I2C_BUS);
139 return expansion_config.device_vendor;
143 * Routine: misc_init_r
144 * Description: Configure board specific parts
146 int misc_init_r(void)
148 unsigned int expansion_id;
150 twl4030_power_init();
151 twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON);
153 printf("Board revision: %d\n", get_board_revision());
155 switch (get_sdio2_config()) {
157 puts("Tranceiver detected on mmc2\n");
158 MUX_OVERO_SDIO2_TRANSCEIVER();
161 puts("Direct connection on mmc2\n");
162 MUX_OVERO_SDIO2_DIRECT();
165 puts("Unable to detect mmc2 connection type\n");
168 expansion_id = get_expansion_id();
169 switch (expansion_id) {
171 printf("Recognized Summit expansion board (rev %d %s)\n",
172 expansion_config.revision,
173 expansion_config.fab_revision);
175 setenv("defaultdisplay", "dvi");
176 setenv("expansionname", "summit");
179 printf("Recognized Tobi expansion board (rev %d %s)\n",
180 expansion_config.revision,
181 expansion_config.fab_revision);
183 setenv("defaultdisplay", "dvi");
184 setenv("expansionname", "tobi");
186 case GUMSTIX_TOBI_DUO:
187 printf("Recognized Tobi Duo expansion board (rev %d %s)\n",
188 expansion_config.revision,
189 expansion_config.fab_revision);
191 setenv("expansionname", "tobiduo");
194 printf("Recognized Palo35 expansion board (rev %d %s)\n",
195 expansion_config.revision,
196 expansion_config.fab_revision);
198 setenv("defaultdisplay", "lcd35");
199 setenv("expansionname", "palo35");
202 printf("Recognized Palo43 expansion board (rev %d %s)\n",
203 expansion_config.revision,
204 expansion_config.fab_revision);
206 setenv("defaultdisplay", "lcd43");
207 setenv("expansionname", "palo43");
209 case GUMSTIX_CHESTNUT43:
210 printf("Recognized Chestnut43 expansion board (rev %d %s)\n",
211 expansion_config.revision,
212 expansion_config.fab_revision);
214 setenv("defaultdisplay", "lcd43");
215 setenv("expansionname", "chestnut43");
218 printf("Recognized Pinto expansion board (rev %d %s)\n",
219 expansion_config.revision,
220 expansion_config.fab_revision);
223 case GUMSTIX_GALLOP43:
224 printf("Recognized Gallop43 expansion board (rev %d %s)\n",
225 expansion_config.revision,
226 expansion_config.fab_revision);
228 setenv("defaultdisplay", "lcd43");
229 setenv("expansionname", "gallop43");
232 printf("Recognized Alto35 expansion board (rev %d %s)\n",
233 expansion_config.revision,
234 expansion_config.fab_revision);
237 setenv("defaultdisplay", "lcd35");
238 setenv("expansionname", "alto35");
240 case GUMSTIX_STAGECOACH:
241 printf("Recognized Stagecoach expansion board (rev %d %s)\n",
242 expansion_config.revision,
243 expansion_config.fab_revision);
247 printf("Recognized Thumbo expansion board (rev %d %s)\n",
248 expansion_config.revision,
249 expansion_config.fab_revision);
252 case GUMSTIX_TURTLECORE:
253 printf("Recognized Turtlecore expansion board (rev %d %s)\n",
254 expansion_config.revision,
255 expansion_config.fab_revision);
258 case GUMSTIX_ARBOR43C:
259 printf("Recognized Arbor43C expansion board (rev %d %s)\n",
260 expansion_config.revision,
261 expansion_config.fab_revision);
264 setenv("defaultdisplay", "lcd43");
265 setenv("expansionname", "arbor43c");
268 printf("Recognized Ettus Research USRP-E (rev %d %s)\n",
269 expansion_config.revision,
270 expansion_config.fab_revision);
273 setenv("defaultdisplay", "dvi");
275 case GUMSTIX_NO_EEPROM:
276 case GUMSTIX_EMPTY_EEPROM:
277 puts("No or empty EEPROM on expansion board\n");
279 setenv("expansionname", "tobi");
282 printf("Unrecognized expansion board 0x%08x\n", expansion_id);
286 if (expansion_config.content == 1)
287 setenv(expansion_config.env_var, expansion_config.env_setting);
289 omap_die_id_display();
291 if (get_cpu_family() == CPU_OMAP34XX)
292 setenv("boardname", "overo");
294 setenv("boardname", "overo-storm");
299 #if defined(CONFIG_CMD_NET)
300 /* GPMC definitions for LAN9221 chips on Tobi expansion boards */
301 static const u32 gpmc_lan_config[] = {
302 NET_LAN9221_GPMC_CONFIG1,
303 NET_LAN9221_GPMC_CONFIG2,
304 NET_LAN9221_GPMC_CONFIG3,
305 NET_LAN9221_GPMC_CONFIG4,
306 NET_LAN9221_GPMC_CONFIG5,
307 NET_LAN9221_GPMC_CONFIG6,
308 /*CONFIG7- computed as params */
312 * Routine: setup_net_chip
313 * Description: Setting up the configuration GPMC registers specific to the
316 static void setup_net_chip(void)
318 struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE;
320 /* Enable off mode for NWE in PADCONF_GPMC_NWE register */
321 writew(readw(&ctrl_base ->gpmc_nwe) | 0x0E00, &ctrl_base->gpmc_nwe);
322 /* Enable off mode for NOE in PADCONF_GPMC_NADV_ALE register */
323 writew(readw(&ctrl_base->gpmc_noe) | 0x0E00, &ctrl_base->gpmc_noe);
324 /* Enable off mode for ALE in PADCONF_GPMC_NADV_ALE register */
325 writew(readw(&ctrl_base->gpmc_nadv_ale) | 0x0E00,
326 &ctrl_base->gpmc_nadv_ale);
330 * Routine: reset_net_chip
331 * Description: Reset the Ethernet hardware.
333 static void reset_net_chip(void)
335 /* Make GPIO 64 as output pin and send a magic pulse through it */
336 if (!gpio_request(64, "")) {
337 gpio_direction_output(64, 0);
338 gpio_set_value(64, 1);
340 gpio_set_value(64, 0);
342 gpio_set_value(64, 1);
346 int board_eth_init(bd_t *bis)
348 unsigned int expansion_id;
351 #ifdef CONFIG_SMC911X
352 expansion_id = get_expansion_id();
353 switch (expansion_id) {
354 case GUMSTIX_TOBI_DUO:
355 /* second lan chip */
356 enable_gpmc_cs_config(gpmc_lan_config, &gpmc_cfg->cs[4],
357 0x2B000000, GPMC_SIZE_16M);
360 case GUMSTIX_CHESTNUT43:
361 case GUMSTIX_STAGECOACH:
362 case GUMSTIX_NO_EEPROM:
363 case GUMSTIX_EMPTY_EEPROM:
365 enable_gpmc_cs_config(gpmc_lan_config, &gpmc_cfg->cs[5],
366 0x2C000000, GPMC_SIZE_16M);
371 rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
382 #if defined(CONFIG_GENERIC_MMC)
383 int board_mmc_init(bd_t *bis)
385 return omap_mmc_init(0, 0, 0, -1, -1);
389 #if defined(CONFIG_GENERIC_MMC)
390 void board_mmc_power_init(void)
392 twl4030_power_mmc_init(0);
396 #if defined(CONFIG_USB_EHCI)
397 static struct omap_usbhs_board_data usbhs_bdata = {
398 .port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
399 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
400 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED
403 #define GUMSTIX_GPIO_USBH_CPEN 168
404 int ehci_hcd_init(int index, enum usb_init_type init,
405 struct ehci_hccr **hccr, struct ehci_hcor **hcor)
407 /* Enable USB power */
408 if (!gpio_request(GUMSTIX_GPIO_USBH_CPEN, "usbh_cpen"))
409 gpio_direction_output(GUMSTIX_GPIO_USBH_CPEN, 1);
411 return omap_ehci_hcd_init(index, &usbhs_bdata, hccr, hcor);
414 int ehci_hcd_stop(void)
416 /* Disable USB power */
417 gpio_set_value(GUMSTIX_GPIO_USBH_CPEN, 0);
418 gpio_free(GUMSTIX_GPIO_USBH_CPEN);
420 return omap_ehci_hcd_stop();
423 #endif /* CONFIG_USB_EHCI */