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 = {
76 U_BOOT_DEVICE(overo_uart) = {
83 * Description: Early hardware init.
87 gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
88 /* board id for Linux */
89 gd->bd->bi_arch_number = MACH_TYPE_OVERO;
91 gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
97 * Routine: get_board_revision
98 * Description: Returns the board revision
100 int get_board_revision(void)
104 #ifdef CONFIG_SYS_I2C_OMAP34XX
107 /* board revisions <= R2410 connect 4030 irq_1 to gpio112 */
108 /* these boards should return a revision number of 0 */
109 /* the code below forces a 4030 RTC irq to ensure that gpio112 is low */
110 i2c_set_bus_num(TWL4030_I2C_BUS);
112 i2c_write(0x4B, 0x29, 1, &data, 1);
114 i2c_write(0x4B, 0x2b, 1, &data, 1);
115 i2c_read(0x4B, 0x2a, 1, &data, 1);
118 if (!gpio_request(112, "") &&
119 !gpio_request(113, "") &&
120 !gpio_request(115, "")) {
122 gpio_direction_input(112);
123 gpio_direction_input(113);
124 gpio_direction_input(115);
126 revision = gpio_get_value(115) << 2 |
127 gpio_get_value(113) << 1 |
130 puts("Error: unable to acquire board revision GPIOs\n");
137 #ifdef CONFIG_SPL_BUILD
139 * Routine: get_board_mem_timings
140 * Description: If we use SPL then there is no x-loader nor config header
141 * so we have to setup the DDR timings ourself on both banks.
143 void get_board_mem_timings(struct board_sdrc_timings *timings)
145 timings->mr = MICRON_V_MR_165;
146 switch (get_board_revision()) {
147 case REVISION_0: /* Micron 1286MB/256MB, 1/2 banks of 128MB */
148 timings->mcfg = MICRON_V_MCFG_165(128 << 20);
149 timings->ctrla = MICRON_V_ACTIMA_165;
150 timings->ctrlb = MICRON_V_ACTIMB_165;
151 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
153 case REVISION_1: /* Micron 256MB/512MB, 1/2 banks of 256MB */
155 timings->mcfg = MICRON_V_MCFG_200(256 << 20);
156 timings->ctrla = MICRON_V_ACTIMA_200;
157 timings->ctrlb = MICRON_V_ACTIMB_200;
158 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz;
160 case REVISION_2: /* Hynix 256MB/512MB, 1/2 banks of 256MB */
161 timings->mcfg = HYNIX_V_MCFG_200(256 << 20);
162 timings->ctrla = HYNIX_V_ACTIMA_200;
163 timings->ctrlb = HYNIX_V_ACTIMB_200;
164 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz;
166 case REVISION_3: /* Micron 512MB/1024MB, 1/2 banks of 512MB */
167 timings->mcfg = MCFG(512 << 20, 15);
168 timings->ctrla = MICRON_V_ACTIMA_200;
169 timings->ctrlb = MICRON_V_ACTIMB_200;
170 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz;
173 timings->mcfg = MICRON_V_MCFG_165(128 << 20);
174 timings->ctrla = MICRON_V_ACTIMA_165;
175 timings->ctrlb = MICRON_V_ACTIMB_165;
176 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
182 * Routine: get_sdio2_config
183 * Description: Return information about the wifi module connection
184 * Returns 0 if the module connects though a level translator
185 * Returns 1 if the module connects directly
187 int get_sdio2_config(void)
191 if (!gpio_request(130, "") && !gpio_request(139, "")) {
193 gpio_direction_output(130, 0);
194 gpio_direction_input(139);
197 gpio_set_value(130, 0);
198 if (gpio_get_value(139) == 0) {
199 gpio_set_value(130, 1);
200 if (gpio_get_value(139) == 1)
204 gpio_direction_input(130);
206 puts("Error: unable to acquire sdio2 clk GPIOs\n");
214 * Routine: get_expansion_id
215 * Description: This function checks for expansion board by checking I2C
216 * bus 2 for the availability of an AT24C01B serial EEPROM.
217 * returns the device_vendor field from the EEPROM
219 unsigned int get_expansion_id(void)
221 if (expansion_config.device_vendor != 0x0)
222 return expansion_config.device_vendor;
224 i2c_set_bus_num(EXPANSION_EEPROM_I2C_BUS);
226 /* return GUMSTIX_NO_EEPROM if eeprom doesn't respond */
227 if (i2c_probe(EXPANSION_EEPROM_I2C_ADDRESS) == 1) {
228 i2c_set_bus_num(TWL4030_I2C_BUS);
229 return GUMSTIX_NO_EEPROM;
232 /* read configuration data */
233 i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 1, (u8 *)&expansion_config,
234 sizeof(expansion_config));
236 i2c_set_bus_num(TWL4030_I2C_BUS);
238 return expansion_config.device_vendor;
242 * Routine: misc_init_r
243 * Description: Configure board specific parts
245 int misc_init_r(void)
247 unsigned int expansion_id;
249 twl4030_power_init();
250 twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON);
252 printf("Board revision: %d\n", get_board_revision());
254 switch (get_sdio2_config()) {
256 puts("Tranceiver detected on mmc2\n");
257 MUX_OVERO_SDIO2_TRANSCEIVER();
260 puts("Direct connection on mmc2\n");
261 MUX_OVERO_SDIO2_DIRECT();
264 puts("Unable to detect mmc2 connection type\n");
267 expansion_id = get_expansion_id();
268 switch (expansion_id) {
270 printf("Recognized Summit expansion board (rev %d %s)\n",
271 expansion_config.revision,
272 expansion_config.fab_revision);
274 setenv("defaultdisplay", "dvi");
275 setenv("expansionname", "summit");
278 printf("Recognized Tobi expansion board (rev %d %s)\n",
279 expansion_config.revision,
280 expansion_config.fab_revision);
282 setenv("defaultdisplay", "dvi");
283 setenv("expansionname", "tobi");
285 case GUMSTIX_TOBI_DUO:
286 printf("Recognized Tobi Duo expansion board (rev %d %s)\n",
287 expansion_config.revision,
288 expansion_config.fab_revision);
292 printf("Recognized Palo35 expansion board (rev %d %s)\n",
293 expansion_config.revision,
294 expansion_config.fab_revision);
296 setenv("defaultdisplay", "lcd35");
299 printf("Recognized Palo43 expansion board (rev %d %s)\n",
300 expansion_config.revision,
301 expansion_config.fab_revision);
303 setenv("defaultdisplay", "lcd43");
304 setenv("expansionname", "palo43");
306 case GUMSTIX_CHESTNUT43:
307 printf("Recognized Chestnut43 expansion board (rev %d %s)\n",
308 expansion_config.revision,
309 expansion_config.fab_revision);
311 setenv("defaultdisplay", "lcd43");
312 setenv("expansionname", "chestnut43");
315 printf("Recognized Pinto expansion board (rev %d %s)\n",
316 expansion_config.revision,
317 expansion_config.fab_revision);
320 case GUMSTIX_GALLOP43:
321 printf("Recognized Gallop43 expansion board (rev %d %s)\n",
322 expansion_config.revision,
323 expansion_config.fab_revision);
325 setenv("defaultdisplay", "lcd43");
326 setenv("expansionname", "gallop43");
329 printf("Recognized Alto35 expansion board (rev %d %s)\n",
330 expansion_config.revision,
331 expansion_config.fab_revision);
334 setenv("defaultdisplay", "lcd35");
335 setenv("expansionname", "alto35");
337 case GUMSTIX_STAGECOACH:
338 printf("Recognized Stagecoach expansion board (rev %d %s)\n",
339 expansion_config.revision,
340 expansion_config.fab_revision);
344 printf("Recognized Thumbo expansion board (rev %d %s)\n",
345 expansion_config.revision,
346 expansion_config.fab_revision);
349 case GUMSTIX_TURTLECORE:
350 printf("Recognized Turtlecore expansion board (rev %d %s)\n",
351 expansion_config.revision,
352 expansion_config.fab_revision);
355 case GUMSTIX_ARBOR43C:
356 printf("Recognized Arbor43C expansion board (rev %d %s)\n",
357 expansion_config.revision,
358 expansion_config.fab_revision);
361 setenv("defaultdisplay", "lcd43");
364 printf("Recognized Ettus Research USRP-E (rev %d %s)\n",
365 expansion_config.revision,
366 expansion_config.fab_revision);
369 setenv("defaultdisplay", "dvi");
371 case GUMSTIX_NO_EEPROM:
372 case GUMSTIX_EMPTY_EEPROM:
373 puts("No or empty EEPROM on expansion board\n");
375 setenv("expansionname", "tobi");
378 printf("Unrecognized expansion board 0x%08x\n", expansion_id);
382 if (expansion_config.content == 1)
383 setenv(expansion_config.env_var, expansion_config.env_setting);
387 if (get_cpu_family() == CPU_OMAP34XX)
388 setenv("boardname", "overo");
390 setenv("boardname", "overo-storm");
396 * Routine: set_muxconf_regs
397 * Description: Setting up the configuration Mux registers specific to the
398 * hardware. Many pins need to be moved from protect to primary
401 void set_muxconf_regs(void)
406 #if defined(CONFIG_CMD_NET) && !defined(CONFIG_SPL_BUILD)
407 /* GPMC definitions for LAN9221 chips on Tobi expansion boards */
408 static const u32 gpmc_lan_config[] = {
409 NET_LAN9221_GPMC_CONFIG1,
410 NET_LAN9221_GPMC_CONFIG2,
411 NET_LAN9221_GPMC_CONFIG3,
412 NET_LAN9221_GPMC_CONFIG4,
413 NET_LAN9221_GPMC_CONFIG5,
414 NET_LAN9221_GPMC_CONFIG6,
415 /*CONFIG7- computed as params */
419 * Routine: setup_net_chip
420 * Description: Setting up the configuration GPMC registers specific to the
423 static void setup_net_chip(void)
425 struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE;
427 /* Enable off mode for NWE in PADCONF_GPMC_NWE register */
428 writew(readw(&ctrl_base ->gpmc_nwe) | 0x0E00, &ctrl_base->gpmc_nwe);
429 /* Enable off mode for NOE in PADCONF_GPMC_NADV_ALE register */
430 writew(readw(&ctrl_base->gpmc_noe) | 0x0E00, &ctrl_base->gpmc_noe);
431 /* Enable off mode for ALE in PADCONF_GPMC_NADV_ALE register */
432 writew(readw(&ctrl_base->gpmc_nadv_ale) | 0x0E00,
433 &ctrl_base->gpmc_nadv_ale);
437 * Routine: reset_net_chip
438 * Description: Reset the Ethernet hardware.
440 static void reset_net_chip(void)
442 /* Make GPIO 64 as output pin and send a magic pulse through it */
443 if (!gpio_request(64, "")) {
444 gpio_direction_output(64, 0);
445 gpio_set_value(64, 1);
447 gpio_set_value(64, 0);
449 gpio_set_value(64, 1);
453 int board_eth_init(bd_t *bis)
455 unsigned int expansion_id;
458 #ifdef CONFIG_SMC911X
459 expansion_id = get_expansion_id();
460 switch (expansion_id) {
461 case GUMSTIX_TOBI_DUO:
462 /* second lan chip */
463 enable_gpmc_cs_config(gpmc_lan_config, &gpmc_cfg->cs[4],
464 0x2B000000, GPMC_SIZE_16M);
467 case GUMSTIX_CHESTNUT43:
468 case GUMSTIX_STAGECOACH:
469 case GUMSTIX_NO_EEPROM:
470 case GUMSTIX_EMPTY_EEPROM:
472 enable_gpmc_cs_config(gpmc_lan_config, &gpmc_cfg->cs[5],
473 0x2C000000, GPMC_SIZE_16M);
478 rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
489 #if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD)
490 int board_mmc_init(bd_t *bis)
492 return omap_mmc_init(0, 0, 0, -1, -1);
496 #if defined(CONFIG_GENERIC_MMC)
497 void board_mmc_power_init(void)
499 twl4030_power_mmc_init(0);
503 #if defined(CONFIG_USB_EHCI) && !defined(CONFIG_SPL_BUILD)
504 static struct omap_usbhs_board_data usbhs_bdata = {
505 .port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
506 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
507 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED
510 #define GUMSTIX_GPIO_USBH_CPEN 168
511 int ehci_hcd_init(int index, enum usb_init_type init,
512 struct ehci_hccr **hccr, struct ehci_hcor **hcor)
514 /* Enable USB power */
515 if (!gpio_request(GUMSTIX_GPIO_USBH_CPEN, "usbh_cpen"))
516 gpio_direction_output(GUMSTIX_GPIO_USBH_CPEN, 1);
518 return omap_ehci_hcd_init(index, &usbhs_bdata, hccr, hcor);
521 int ehci_hcd_stop(void)
523 /* Disable USB power */
524 gpio_set_value(GUMSTIX_GPIO_USBH_CPEN, 0);
525 gpio_free(GUMSTIX_GPIO_USBH_CPEN);
527 return omap_ehci_hcd_stop();
530 #endif /* CONFIG_USB_EHCI */