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+
18 #include <linux/mtd/nand.h>
20 #include <asm/arch/mmc_host_def.h>
21 #include <asm/arch/mux.h>
22 #include <asm/arch/mem.h>
23 #include <asm/arch/sys_proto.h>
25 #include <asm/mach-types.h>
28 DECLARE_GLOBAL_DATA_PTR;
30 #define TWL4030_I2C_BUS 0
31 #define EXPANSION_EEPROM_I2C_BUS 2
32 #define EXPANSION_EEPROM_I2C_ADDRESS 0x51
34 #define GUMSTIX_SUMMIT 0x01000200
35 #define GUMSTIX_TOBI 0x02000200
36 #define GUMSTIX_TOBI_DUO 0x03000200
37 #define GUMSTIX_PALO35 0x04000200
38 #define GUMSTIX_PALO43 0x05000200
39 #define GUMSTIX_CHESTNUT43 0x06000200
40 #define GUMSTIX_PINTO 0x07000200
41 #define GUMSTIX_GALLOP43 0x08000200
42 #define GUMSTIX_ALTO35 0x09000200
43 #define GUMSTIX_STAGECOACH 0x0A000200
44 #define GUMSTIX_THUMBO 0x0B000200
45 #define GUMSTIX_TURTLECORE 0x0C000200
46 #define GUMSTIX_ARBOR43C 0x0D000200
48 #define ETTUS_USRP_E 0x01000300
50 #define GUMSTIX_NO_EEPROM 0xffffffff
53 unsigned int device_vendor;
54 unsigned char revision;
55 unsigned char content;
63 * Description: Early hardware init.
67 gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
68 /* board id for Linux */
69 gd->bd->bi_arch_number = MACH_TYPE_OVERO;
71 gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
77 * Routine: get_board_revision
78 * Description: Returns the board revision
80 int get_board_revision(void)
84 #ifdef CONFIG_SYS_I2C_OMAP34XX
87 /* board revisions <= R2410 connect 4030 irq_1 to gpio112 */
88 /* these boards should return a revision number of 0 */
89 /* the code below forces a 4030 RTC irq to ensure that gpio112 is low */
90 i2c_set_bus_num(TWL4030_I2C_BUS);
92 i2c_write(0x4B, 0x29, 1, &data, 1);
94 i2c_write(0x4B, 0x2b, 1, &data, 1);
95 i2c_read(0x4B, 0x2a, 1, &data, 1);
98 if (!gpio_request(112, "") &&
99 !gpio_request(113, "") &&
100 !gpio_request(115, "")) {
102 gpio_direction_input(112);
103 gpio_direction_input(113);
104 gpio_direction_input(115);
106 revision = gpio_get_value(115) << 2 |
107 gpio_get_value(113) << 1 |
110 puts("Error: unable to acquire board revision GPIOs\n");
117 #ifdef CONFIG_SPL_BUILD
119 * Routine: get_board_mem_timings
120 * Description: If we use SPL then there is no x-loader nor config header
121 * so we have to setup the DDR timings ourself on both banks.
123 void get_board_mem_timings(struct board_sdrc_timings *timings)
125 timings->mr = MICRON_V_MR_165;
126 switch (get_board_revision()) {
127 case REVISION_0: /* Micron 1286MB/256MB, 1/2 banks of 128MB */
128 timings->mcfg = MICRON_V_MCFG_165(128 << 20);
129 timings->ctrla = MICRON_V_ACTIMA_165;
130 timings->ctrlb = MICRON_V_ACTIMB_165;
131 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
133 case REVISION_1: /* Micron 256MB/512MB, 1/2 banks of 256MB */
135 timings->mcfg = MICRON_V_MCFG_200(256 << 20);
136 timings->ctrla = MICRON_V_ACTIMA_200;
137 timings->ctrlb = MICRON_V_ACTIMB_200;
138 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz;
140 case REVISION_2: /* Hynix 256MB/512MB, 1/2 banks of 256MB */
141 timings->mcfg = HYNIX_V_MCFG_200(256 << 20);
142 timings->ctrla = HYNIX_V_ACTIMA_200;
143 timings->ctrlb = HYNIX_V_ACTIMB_200;
144 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz;
146 case REVISION_3: /* Micron 512MB/1024MB, 1/2 banks of 512MB */
147 timings->mcfg = MCFG(512 << 20, 15);
148 timings->ctrla = MICRON_V_ACTIMA_200;
149 timings->ctrlb = MICRON_V_ACTIMB_200;
150 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_200MHz;
153 timings->mcfg = MICRON_V_MCFG_165(128 << 20);
154 timings->ctrla = MICRON_V_ACTIMA_165;
155 timings->ctrlb = MICRON_V_ACTIMB_165;
156 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
162 * Routine: get_sdio2_config
163 * Description: Return information about the wifi module connection
164 * Returns 0 if the module connects though a level translator
165 * Returns 1 if the module connects directly
167 int get_sdio2_config(void)
171 if (!gpio_request(130, "") && !gpio_request(139, "")) {
173 gpio_direction_output(130, 0);
174 gpio_direction_input(139);
177 gpio_set_value(130, 0);
178 if (gpio_get_value(139) == 0) {
179 gpio_set_value(130, 1);
180 if (gpio_get_value(139) == 1)
184 gpio_direction_input(130);
186 puts("Error: unable to acquire sdio2 clk GPIOs\n");
194 * Routine: get_expansion_id
195 * Description: This function checks for expansion board by checking I2C
196 * bus 2 for the availability of an AT24C01B serial EEPROM.
197 * returns the device_vendor field from the EEPROM
199 unsigned int get_expansion_id(void)
201 i2c_set_bus_num(EXPANSION_EEPROM_I2C_BUS);
203 /* return GUMSTIX_NO_EEPROM if eeprom doesn't respond */
204 if (i2c_probe(EXPANSION_EEPROM_I2C_ADDRESS) == 1) {
205 i2c_set_bus_num(TWL4030_I2C_BUS);
206 return GUMSTIX_NO_EEPROM;
209 /* read configuration data */
210 i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 1, (u8 *)&expansion_config,
211 sizeof(expansion_config));
213 i2c_set_bus_num(TWL4030_I2C_BUS);
215 return expansion_config.device_vendor;
219 * Routine: misc_init_r
220 * Description: Configure board specific parts
222 int misc_init_r(void)
224 unsigned int expansion_id;
226 twl4030_power_init();
227 twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON);
229 printf("Board revision: %d\n", get_board_revision());
231 switch (get_sdio2_config()) {
233 puts("Tranceiver detected on mmc2\n");
234 MUX_OVERO_SDIO2_TRANSCEIVER();
237 puts("Direct connection on mmc2\n");
238 MUX_OVERO_SDIO2_DIRECT();
241 puts("Unable to detect mmc2 connection type\n");
244 expansion_id = get_expansion_id();
245 switch (expansion_id) {
247 printf("Recognized Summit expansion board (rev %d %s)\n",
248 expansion_config.revision,
249 expansion_config.fab_revision);
250 setenv("defaultdisplay", "dvi");
251 setenv("expansionname", "summit");
254 printf("Recognized Tobi expansion board (rev %d %s)\n",
255 expansion_config.revision,
256 expansion_config.fab_revision);
257 setenv("defaultdisplay", "dvi");
258 setenv("expansionname", "tobi");
260 case GUMSTIX_TOBI_DUO:
261 printf("Recognized Tobi Duo expansion board (rev %d %s)\n",
262 expansion_config.revision,
263 expansion_config.fab_revision);
266 printf("Recognized Palo35 expansion board (rev %d %s)\n",
267 expansion_config.revision,
268 expansion_config.fab_revision);
269 setenv("defaultdisplay", "lcd35");
272 printf("Recognized Palo43 expansion board (rev %d %s)\n",
273 expansion_config.revision,
274 expansion_config.fab_revision);
275 setenv("defaultdisplay", "lcd43");
276 setenv("expansionname", "palo43");
278 case GUMSTIX_CHESTNUT43:
279 printf("Recognized Chestnut43 expansion board (rev %d %s)\n",
280 expansion_config.revision,
281 expansion_config.fab_revision);
282 setenv("defaultdisplay", "lcd43");
283 setenv("expansionname", "chestnut43");
286 printf("Recognized Pinto expansion board (rev %d %s)\n",
287 expansion_config.revision,
288 expansion_config.fab_revision);
290 case GUMSTIX_GALLOP43:
291 printf("Recognized Gallop43 expansion board (rev %d %s)\n",
292 expansion_config.revision,
293 expansion_config.fab_revision);
294 setenv("defaultdisplay", "lcd43");
295 setenv("expansionname", "gallop43");
298 printf("Recognized Alto35 expansion board (rev %d %s)\n",
299 expansion_config.revision,
300 expansion_config.fab_revision);
302 setenv("defaultdisplay", "lcd35");
303 setenv("expansionname", "alto35");
305 case GUMSTIX_STAGECOACH:
306 printf("Recognized Stagecoach expansion board (rev %d %s)\n",
307 expansion_config.revision,
308 expansion_config.fab_revision);
311 printf("Recognized Thumbo expansion board (rev %d %s)\n",
312 expansion_config.revision,
313 expansion_config.fab_revision);
315 case GUMSTIX_TURTLECORE:
316 printf("Recognized Turtlecore expansion board (rev %d %s)\n",
317 expansion_config.revision,
318 expansion_config.fab_revision);
320 case GUMSTIX_ARBOR43C:
321 printf("Recognized Arbor43C expansion board (rev %d %s)\n",
322 expansion_config.revision,
323 expansion_config.fab_revision);
325 setenv("defaultdisplay", "lcd43");
328 printf("Recognized Ettus Research USRP-E (rev %d %s)\n",
329 expansion_config.revision,
330 expansion_config.fab_revision);
332 setenv("defaultdisplay", "dvi");
334 case GUMSTIX_NO_EEPROM:
335 puts("No EEPROM on expansion board\n");
336 setenv("expansionname", "tobi");
339 if (expansion_id == 0x0)
340 setenv("expansionname", "tobi");
341 printf("Unrecognized expansion board 0x%08x\n", expansion_id);
345 if (expansion_config.content == 1)
346 setenv(expansion_config.env_var, expansion_config.env_setting);
350 if (get_cpu_family() == CPU_OMAP34XX)
351 setenv("boardname", "overo");
353 setenv("boardname", "overo-storm");
359 * Routine: set_muxconf_regs
360 * Description: Setting up the configuration Mux registers specific to the
361 * hardware. Many pins need to be moved from protect to primary
364 void set_muxconf_regs(void)
369 #if defined(CONFIG_CMD_NET) && !defined(CONFIG_SPL_BUILD)
370 /* GPMC definitions for LAN9221 chips on Tobi expansion boards */
371 static const u32 gpmc_lan_config[] = {
372 NET_LAN9221_GPMC_CONFIG1,
373 NET_LAN9221_GPMC_CONFIG2,
374 NET_LAN9221_GPMC_CONFIG3,
375 NET_LAN9221_GPMC_CONFIG4,
376 NET_LAN9221_GPMC_CONFIG5,
377 NET_LAN9221_GPMC_CONFIG6,
378 /*CONFIG7- computed as params */
382 * Routine: setup_net_chip
383 * Description: Setting up the configuration GPMC registers specific to the
386 static void setup_net_chip(void)
388 struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE;
390 /* Enable off mode for NWE in PADCONF_GPMC_NWE register */
391 writew(readw(&ctrl_base ->gpmc_nwe) | 0x0E00, &ctrl_base->gpmc_nwe);
392 /* Enable off mode for NOE in PADCONF_GPMC_NADV_ALE register */
393 writew(readw(&ctrl_base->gpmc_noe) | 0x0E00, &ctrl_base->gpmc_noe);
394 /* Enable off mode for ALE in PADCONF_GPMC_NADV_ALE register */
395 writew(readw(&ctrl_base->gpmc_nadv_ale) | 0x0E00,
396 &ctrl_base->gpmc_nadv_ale);
400 * Routine: reset_net_chip
401 * Description: Reset the Ethernet hardware.
403 static void reset_net_chip(void)
405 /* Make GPIO 64 as output pin and send a magic pulse through it */
406 if (!gpio_request(64, "")) {
407 gpio_direction_output(64, 0);
408 gpio_set_value(64, 1);
410 gpio_set_value(64, 0);
412 gpio_set_value(64, 1);
416 int board_eth_init(bd_t *bis)
418 unsigned int expansion_id;
421 #ifdef CONFIG_SMC911X
422 expansion_id = get_expansion_id();
423 switch (expansion_id) {
424 case GUMSTIX_TOBI_DUO:
425 /* second lan chip */
426 enable_gpmc_cs_config(gpmc_lan_config, &gpmc_cfg->cs[4],
427 0x2B000000, GPMC_SIZE_16M);
430 case GUMSTIX_CHESTNUT43:
431 case GUMSTIX_STAGECOACH:
432 case GUMSTIX_NO_EEPROM:
433 case GUMSTIX_EMPTY_EEPROM:
435 enable_gpmc_cs_config(gpmc_lan_config, &gpmc_cfg->cs[5],
436 0x2C000000, GPMC_SIZE_16M);
441 rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
452 #if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD)
453 int board_mmc_init(bd_t *bis)
455 return omap_mmc_init(0, 0, 0, -1, -1);