1 // SPDX-License-Identifier: GPL-2.0+
3 * Maintainer : Steve Sakoman <steve@sakoman.com>
5 * Derived from Beagle Board, 3430 SDP, and OMAP3EVM code by
6 * Richard Woodruff <r-woodruff2@ti.com>
7 * Syed Mohammed Khasim <khasim@ti.com>
8 * Sunil Kumar <sunilsaini05@gmail.com>
9 * Shashi Ranjan <shashiranjanmca05@gmail.com>
11 * (C) Copyright 2004-2008
12 * Texas Instruments, <www.ti.com>
21 #include <linux/mtd/rawnand.h>
23 #include <asm/arch/mmc_host_def.h>
24 #include <asm/arch/mux.h>
25 #include <asm/arch/mem.h>
26 #include <asm/arch/sys_proto.h>
28 #include <asm/mach-types.h>
31 #ifdef CONFIG_USB_EHCI_HCD
33 #include <asm/ehci-omap.h>
36 #define TWL4030_I2C_BUS 0
37 #define EXPANSION_EEPROM_I2C_BUS 2
38 #define EXPANSION_EEPROM_I2C_ADDRESS 0x51
40 #define GUMSTIX_EMPTY_EEPROM 0x0
42 #define GUMSTIX_SUMMIT 0x01000200
43 #define GUMSTIX_TOBI 0x02000200
44 #define GUMSTIX_TOBI_DUO 0x03000200
45 #define GUMSTIX_PALO35 0x04000200
46 #define GUMSTIX_PALO43 0x05000200
47 #define GUMSTIX_CHESTNUT43 0x06000200
48 #define GUMSTIX_PINTO 0x07000200
49 #define GUMSTIX_GALLOP43 0x08000200
50 #define GUMSTIX_ALTO35 0x09000200
51 #define GUMSTIX_STAGECOACH 0x0A000200
52 #define GUMSTIX_THUMBO 0x0B000200
53 #define GUMSTIX_TURTLECORE 0x0C000200
54 #define GUMSTIX_ARBOR43C 0x0D000200
56 #define ETTUS_USRP_E 0x01000300
58 #define GUMSTIX_NO_EEPROM 0xffffffff
61 unsigned int device_vendor
;
62 unsigned char revision
;
63 unsigned char content
;
67 } expansion_config
= {0x0};
69 static const struct ns16550_platdata overo_serial
= {
70 .base
= OMAP34XX_UART3
,
72 .clock
= V_NS16550_CLK
,
73 .fcr
= UART_FCR_DEFVAL
,
76 U_BOOT_DEVICE(overo_uart
) = {
82 * Routine: get_sdio2_config
83 * Description: Return information about the wifi module connection
84 * Returns 0 if the module connects though a level translator
85 * Returns 1 if the module connects directly
87 int get_sdio2_config(void)
91 if (!gpio_request(130, "") && !gpio_request(139, "")) {
93 gpio_direction_output(130, 0);
94 gpio_direction_input(139);
97 gpio_set_value(130, 0);
98 if (gpio_get_value(139) == 0) {
99 gpio_set_value(130, 1);
100 if (gpio_get_value(139) == 1)
104 gpio_direction_input(130);
106 puts("Error: unable to acquire sdio2 clk GPIOs\n");
114 * Routine: get_expansion_id
115 * Description: This function checks for expansion board by checking I2C
116 * bus 2 for the availability of an AT24C01B serial EEPROM.
117 * returns the device_vendor field from the EEPROM
119 unsigned int get_expansion_id(void)
121 if (expansion_config
.device_vendor
!= 0x0)
122 return expansion_config
.device_vendor
;
124 i2c_set_bus_num(EXPANSION_EEPROM_I2C_BUS
);
126 /* return GUMSTIX_NO_EEPROM if eeprom doesn't respond */
127 if (i2c_probe(EXPANSION_EEPROM_I2C_ADDRESS
) == 1) {
128 i2c_set_bus_num(TWL4030_I2C_BUS
);
129 return GUMSTIX_NO_EEPROM
;
132 /* read configuration data */
133 i2c_read(EXPANSION_EEPROM_I2C_ADDRESS
, 0, 1, (u8
*)&expansion_config
,
134 sizeof(expansion_config
));
136 i2c_set_bus_num(TWL4030_I2C_BUS
);
138 return expansion_config
.device_vendor
;
142 * Routine: misc_init_r
143 * Description: Configure board specific parts
145 int misc_init_r(void)
147 unsigned int expansion_id
;
149 twl4030_power_init();
150 twl4030_led_init(TWL4030_LED_LEDEN_LEDAON
| TWL4030_LED_LEDEN_LEDBON
);
152 printf("Board revision: %d\n", get_board_revision());
154 switch (get_sdio2_config()) {
156 puts("Tranceiver detected on mmc2\n");
157 MUX_OVERO_SDIO2_TRANSCEIVER();
160 puts("Direct connection on mmc2\n");
161 MUX_OVERO_SDIO2_DIRECT();
164 puts("Unable to detect mmc2 connection type\n");
167 expansion_id
= get_expansion_id();
168 switch (expansion_id
) {
170 printf("Recognized Summit expansion board (rev %d %s)\n",
171 expansion_config
.revision
,
172 expansion_config
.fab_revision
);
174 env_set("defaultdisplay", "dvi");
175 env_set("expansionname", "summit");
178 printf("Recognized Tobi expansion board (rev %d %s)\n",
179 expansion_config
.revision
,
180 expansion_config
.fab_revision
);
182 env_set("defaultdisplay", "dvi");
183 env_set("expansionname", "tobi");
185 case GUMSTIX_TOBI_DUO
:
186 printf("Recognized Tobi Duo expansion board (rev %d %s)\n",
187 expansion_config
.revision
,
188 expansion_config
.fab_revision
);
190 env_set("expansionname", "tobiduo");
193 printf("Recognized Palo35 expansion board (rev %d %s)\n",
194 expansion_config
.revision
,
195 expansion_config
.fab_revision
);
197 env_set("defaultdisplay", "lcd35");
198 env_set("expansionname", "palo35");
201 printf("Recognized Palo43 expansion board (rev %d %s)\n",
202 expansion_config
.revision
,
203 expansion_config
.fab_revision
);
205 env_set("defaultdisplay", "lcd43");
206 env_set("expansionname", "palo43");
208 case GUMSTIX_CHESTNUT43
:
209 printf("Recognized Chestnut43 expansion board (rev %d %s)\n",
210 expansion_config
.revision
,
211 expansion_config
.fab_revision
);
213 env_set("defaultdisplay", "lcd43");
214 env_set("expansionname", "chestnut43");
217 printf("Recognized Pinto expansion board (rev %d %s)\n",
218 expansion_config
.revision
,
219 expansion_config
.fab_revision
);
222 case GUMSTIX_GALLOP43
:
223 printf("Recognized Gallop43 expansion board (rev %d %s)\n",
224 expansion_config
.revision
,
225 expansion_config
.fab_revision
);
227 env_set("defaultdisplay", "lcd43");
228 env_set("expansionname", "gallop43");
231 printf("Recognized Alto35 expansion board (rev %d %s)\n",
232 expansion_config
.revision
,
233 expansion_config
.fab_revision
);
236 env_set("defaultdisplay", "lcd35");
237 env_set("expansionname", "alto35");
239 case GUMSTIX_STAGECOACH
:
240 printf("Recognized Stagecoach expansion board (rev %d %s)\n",
241 expansion_config
.revision
,
242 expansion_config
.fab_revision
);
246 printf("Recognized Thumbo expansion board (rev %d %s)\n",
247 expansion_config
.revision
,
248 expansion_config
.fab_revision
);
251 case GUMSTIX_TURTLECORE
:
252 printf("Recognized Turtlecore expansion board (rev %d %s)\n",
253 expansion_config
.revision
,
254 expansion_config
.fab_revision
);
257 case GUMSTIX_ARBOR43C
:
258 printf("Recognized Arbor43C expansion board (rev %d %s)\n",
259 expansion_config
.revision
,
260 expansion_config
.fab_revision
);
263 env_set("defaultdisplay", "lcd43");
264 env_set("expansionname", "arbor43c");
267 printf("Recognized Ettus Research USRP-E (rev %d %s)\n",
268 expansion_config
.revision
,
269 expansion_config
.fab_revision
);
272 env_set("defaultdisplay", "dvi");
274 case GUMSTIX_NO_EEPROM
:
275 case GUMSTIX_EMPTY_EEPROM
:
276 puts("No or empty EEPROM on expansion board\n");
278 env_set("expansionname", "tobi");
281 printf("Unrecognized expansion board 0x%08x\n", expansion_id
);
285 if (expansion_config
.content
== 1)
286 env_set(expansion_config
.env_var
, expansion_config
.env_setting
);
288 omap_die_id_display();
290 if (get_cpu_family() == CPU_OMAP34XX
)
291 env_set("boardname", "overo");
293 env_set("boardname", "overo-storm");
298 #if defined(CONFIG_CMD_NET)
299 /* GPMC definitions for LAN9221 chips on Tobi expansion boards */
300 static const u32 gpmc_lan_config
[] = {
301 NET_LAN9221_GPMC_CONFIG1
,
302 NET_LAN9221_GPMC_CONFIG2
,
303 NET_LAN9221_GPMC_CONFIG3
,
304 NET_LAN9221_GPMC_CONFIG4
,
305 NET_LAN9221_GPMC_CONFIG5
,
306 NET_LAN9221_GPMC_CONFIG6
,
307 /*CONFIG7- computed as params */
311 * Routine: setup_net_chip
312 * Description: Setting up the configuration GPMC registers specific to the
315 static void setup_net_chip(void)
317 struct ctrl
*ctrl_base
= (struct ctrl
*)OMAP34XX_CTRL_BASE
;
319 /* Enable off mode for NWE in PADCONF_GPMC_NWE register */
320 writew(readw(&ctrl_base
->gpmc_nwe
) | 0x0E00, &ctrl_base
->gpmc_nwe
);
321 /* Enable off mode for NOE in PADCONF_GPMC_NADV_ALE register */
322 writew(readw(&ctrl_base
->gpmc_noe
) | 0x0E00, &ctrl_base
->gpmc_noe
);
323 /* Enable off mode for ALE in PADCONF_GPMC_NADV_ALE register */
324 writew(readw(&ctrl_base
->gpmc_nadv_ale
) | 0x0E00,
325 &ctrl_base
->gpmc_nadv_ale
);
329 * Routine: reset_net_chip
330 * Description: Reset the Ethernet hardware.
332 static void reset_net_chip(void)
334 /* Make GPIO 64 as output pin and send a magic pulse through it */
335 if (!gpio_request(64, "")) {
336 gpio_direction_output(64, 0);
337 gpio_set_value(64, 1);
339 gpio_set_value(64, 0);
341 gpio_set_value(64, 1);
345 int board_eth_init(bd_t
*bis
)
347 unsigned int expansion_id
;
350 #ifdef CONFIG_SMC911X
351 expansion_id
= get_expansion_id();
352 switch (expansion_id
) {
353 case GUMSTIX_TOBI_DUO
:
354 /* second lan chip */
355 enable_gpmc_cs_config(gpmc_lan_config
, &gpmc_cfg
->cs
[4],
356 0x2B000000, GPMC_SIZE_16M
);
359 case GUMSTIX_CHESTNUT43
:
360 case GUMSTIX_STAGECOACH
:
361 case GUMSTIX_NO_EEPROM
:
362 case GUMSTIX_EMPTY_EEPROM
:
364 enable_gpmc_cs_config(gpmc_lan_config
, &gpmc_cfg
->cs
[5],
365 0x2C000000, GPMC_SIZE_16M
);
370 rc
= smc911x_initialize(0, CONFIG_SMC911X_BASE
);
381 #if defined(CONFIG_USB_EHCI_HCD)
382 static struct omap_usbhs_board_data usbhs_bdata
= {
383 .port_mode
[0] = OMAP_USBHS_PORT_MODE_UNUSED
,
384 .port_mode
[1] = OMAP_EHCI_PORT_MODE_PHY
,
385 .port_mode
[2] = OMAP_USBHS_PORT_MODE_UNUSED
388 #define GUMSTIX_GPIO_USBH_CPEN 168
389 int ehci_hcd_init(int index
, enum usb_init_type init
,
390 struct ehci_hccr
**hccr
, struct ehci_hcor
**hcor
)
392 /* Enable USB power */
393 if (!gpio_request(GUMSTIX_GPIO_USBH_CPEN
, "usbh_cpen"))
394 gpio_direction_output(GUMSTIX_GPIO_USBH_CPEN
, 1);
396 return omap_ehci_hcd_init(index
, &usbhs_bdata
, hccr
, hcor
);
399 int ehci_hcd_stop(void)
401 /* Disable USB power */
402 gpio_set_value(GUMSTIX_GPIO_USBH_CPEN
, 0);
403 gpio_free(GUMSTIX_GPIO_USBH_CPEN
);
405 return omap_ehci_hcd_stop();
408 #endif /* CONFIG_USB_EHCI_HCD */