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Dirk Behme9d0fc812009-01-28 21:39:57 +01001/*
2 * Maintainer : Steve Sakoman <steve@sakoman.com>
3 *
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>
9 *
10 * (C) Copyright 2004-2008
11 * Texas Instruments, <www.ti.com>
12 *
13 * See file CREDITS for list of people who contributed to this
14 * project.
15 *
16 * This program is free software; you can redistribute it and/or
17 * modify it under the terms of the GNU General Public License as
18 * published by the Free Software Foundation; either version 2 of
19 * the License, or (at your option) any later version.
20 *
21 * This program is distributed in the hope that it will be useful,
22 * but WITHOUT ANY WARRANTY; without even the implied warranty of
23 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24 * GNU General Public License for more details.
25 *
26 * You should have received a copy of the GNU General Public License
27 * along with this program; if not, write to the Free Software
28 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
29 * MA 02111-1307 USA
30 */
31#include <common.h>
Olof Johanssondf382622009-09-29 10:22:45 -040032#include <netdev.h>
Tom Rix2c155132009-06-28 12:52:30 -050033#include <twl4030.h>
Andreas Müller137703b2012-01-04 15:26:25 +000034#include <linux/mtd/nand.h>
Dirk Behme9d0fc812009-01-28 21:39:57 +010035#include <asm/io.h>
Steve Sakomancd7c5722010-09-19 21:21:07 -070036#include <asm/arch/mmc_host_def.h>
Dirk Behme9d0fc812009-01-28 21:39:57 +010037#include <asm/arch/mux.h>
Olof Johanssondf382622009-09-29 10:22:45 -040038#include <asm/arch/mem.h>
Dirk Behme9d0fc812009-01-28 21:39:57 +010039#include <asm/arch/sys_proto.h>
Andreas Bießmann5bf299b2013-04-02 06:05:54 +000040#include <asm/omap_gpmc.h>
Sanjeev Premi84c3b632011-09-08 10:51:01 -040041#include <asm/gpio.h>
Dirk Behme9d0fc812009-01-28 21:39:57 +010042#include <asm/mach-types.h>
43#include "overo.h"
44
John Rigby29565322010-12-20 18:27:51 -070045DECLARE_GLOBAL_DATA_PTR;
46
Steve Sakomand64b5b82010-09-20 08:05:14 -070047#define TWL4030_I2C_BUS 0
48#define EXPANSION_EEPROM_I2C_BUS 2
49#define EXPANSION_EEPROM_I2C_ADDRESS 0x51
50
51#define GUMSTIX_SUMMIT 0x01000200
52#define GUMSTIX_TOBI 0x02000200
53#define GUMSTIX_TOBI_DUO 0x03000200
54#define GUMSTIX_PALO35 0x04000200
55#define GUMSTIX_PALO43 0x05000200
56#define GUMSTIX_CHESTNUT43 0x06000200
57#define GUMSTIX_PINTO 0x07000200
58#define GUMSTIX_GALLOP43 0x08000200
59
60#define ETTUS_USRP_E 0x01000300
61
62#define GUMSTIX_NO_EEPROM 0xffffffff
63
64static struct {
65 unsigned int device_vendor;
66 unsigned char revision;
67 unsigned char content;
68 char fab_revision[8];
69 char env_var[16];
70 char env_setting[64];
71} expansion_config;
72
Olof Johanssondf382622009-09-29 10:22:45 -040073#if defined(CONFIG_CMD_NET)
74static void setup_net_chip(void);
75#endif
76
Steve Sakomanba9a11e2010-08-12 21:07:02 -070077/* GPMC definitions for LAN9221 chips on Tobi expansion boards */
78static const u32 gpmc_lan_config[] = {
79 NET_LAN9221_GPMC_CONFIG1,
80 NET_LAN9221_GPMC_CONFIG2,
81 NET_LAN9221_GPMC_CONFIG3,
82 NET_LAN9221_GPMC_CONFIG4,
83 NET_LAN9221_GPMC_CONFIG5,
84 NET_LAN9221_GPMC_CONFIG6,
85 /*CONFIG7- computed as params */
86};
87
Tom Rix58911512009-04-01 22:02:20 -050088/*
Dirk Behme9d0fc812009-01-28 21:39:57 +010089 * Routine: board_init
90 * Description: Early hardware init.
Tom Rix58911512009-04-01 22:02:20 -050091 */
Dirk Behme9d0fc812009-01-28 21:39:57 +010092int board_init(void)
93{
Dirk Behme9d0fc812009-01-28 21:39:57 +010094 gpmc_init(); /* in SRAM or SDRAM, finish GPMC */
95 /* board id for Linux */
96 gd->bd->bi_arch_number = MACH_TYPE_OVERO;
97 /* boot param addr */
98 gd->bd->bi_boot_params = (OMAP34XX_SDRC_CS0 + 0x100);
99
100 return 0;
101}
102
Tom Rix58911512009-04-01 22:02:20 -0500103/*
Steve Sakomanc2d5b342010-08-12 15:13:02 -0700104 * Routine: get_board_revision
105 * Description: Returns the board revision
106 */
107int get_board_revision(void)
108{
109 int revision;
110
Andreas Müller137703b2012-01-04 15:26:25 +0000111#ifdef CONFIG_DRIVER_OMAP34XX_I2C
112 unsigned char data;
113
114 /* board revisions <= R2410 connect 4030 irq_1 to gpio112 */
115 /* these boards should return a revision number of 0 */
116 /* the code below forces a 4030 RTC irq to ensure that gpio112 is low */
117 i2c_set_bus_num(TWL4030_I2C_BUS);
118 data = 0x01;
119 i2c_write(0x4B, 0x29, 1, &data, 1);
120 data = 0x0c;
121 i2c_write(0x4B, 0x2b, 1, &data, 1);
122 i2c_read(0x4B, 0x2a, 1, &data, 1);
123#endif
124
Sanjeev Premi84c3b632011-09-08 10:51:01 -0400125 if (!gpio_request(112, "") &&
126 !gpio_request(113, "") &&
127 !gpio_request(115, "")) {
Steve Sakomanc2d5b342010-08-12 15:13:02 -0700128
Sanjeev Premi84c3b632011-09-08 10:51:01 -0400129 gpio_direction_input(112);
130 gpio_direction_input(113);
131 gpio_direction_input(115);
Steve Sakomanc2d5b342010-08-12 15:13:02 -0700132
Sanjeev Premi84c3b632011-09-08 10:51:01 -0400133 revision = gpio_get_value(115) << 2 |
134 gpio_get_value(113) << 1 |
135 gpio_get_value(112);
Steve Sakomanc2d5b342010-08-12 15:13:02 -0700136 } else {
Andreas Müllerbae485d2012-01-04 15:26:20 +0000137 puts("Error: unable to acquire board revision GPIOs\n");
Steve Sakomanc2d5b342010-08-12 15:13:02 -0700138 revision = -1;
139 }
140
141 return revision;
142}
143
Andreas Müller137703b2012-01-04 15:26:25 +0000144#ifdef CONFIG_SPL_BUILD
145/*
146 * Routine: get_board_mem_timings
147 * Description: If we use SPL then there is no x-loader nor config header
148 * so we have to setup the DDR timings ourself on both banks.
149 */
Peter Barada8c4445d2012-11-13 07:40:28 +0000150void get_board_mem_timings(struct board_sdrc_timings *timings)
Andreas Müller137703b2012-01-04 15:26:25 +0000151{
Peter Barada8c4445d2012-11-13 07:40:28 +0000152 timings->mr = MICRON_V_MR_165;
Andreas Müller137703b2012-01-04 15:26:25 +0000153 switch (get_board_revision()) {
154 case REVISION_0: /* Micron 1286MB/256MB, 1/2 banks of 128MB */
Peter Barada8c4445d2012-11-13 07:40:28 +0000155 timings->mcfg = MICRON_V_MCFG_165(128 << 20);
156 timings->ctrla = MICRON_V_ACTIMA_165;
157 timings->ctrlb = MICRON_V_ACTIMB_165;
158 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
Andreas Müller137703b2012-01-04 15:26:25 +0000159 break;
160 case REVISION_1: /* Micron 256MB/512MB, 1/2 banks of 256MB */
Peter Barada8c4445d2012-11-13 07:40:28 +0000161 timings->mcfg = MICRON_V_MCFG_165(256 << 20);
162 timings->ctrla = MICRON_V_ACTIMA_165;
163 timings->ctrlb = MICRON_V_ACTIMB_165;
164 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
Andreas Müller137703b2012-01-04 15:26:25 +0000165 break;
166 case REVISION_2: /* Hynix 256MB/512MB, 1/2 banks of 256MB */
Peter Barada8c4445d2012-11-13 07:40:28 +0000167 timings->mcfg = HYNIX_V_MCFG_165(256 << 20);
168 timings->ctrla = HYNIX_V_ACTIMA_165;
169 timings->ctrlb = HYNIX_V_ACTIMB_165;
170 timings->rfr_ctrl = SDP_3430_SDRC_RFR_CTRL_165MHz;
Andreas Müller137703b2012-01-04 15:26:25 +0000171 break;
172 default:
Peter Barada8c4445d2012-11-13 07:40:28 +0000173 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;
Andreas Müller137703b2012-01-04 15:26:25 +0000177 }
178}
179#endif
180
Steve Sakomanc2d5b342010-08-12 15:13:02 -0700181/*
Steve Sakomana06e1622010-08-24 10:37:29 -0700182 * 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
186 */
187int get_sdio2_config(void)
188{
189 int sdio_direct;
190
Sanjeev Premi84c3b632011-09-08 10:51:01 -0400191 if (!gpio_request(130, "") && !gpio_request(139, "")) {
Steve Sakomana06e1622010-08-24 10:37:29 -0700192
Sanjeev Premi84c3b632011-09-08 10:51:01 -0400193 gpio_direction_output(130, 0);
194 gpio_direction_input(139);
Steve Sakomana06e1622010-08-24 10:37:29 -0700195
196 sdio_direct = 1;
Sanjeev Premi84c3b632011-09-08 10:51:01 -0400197 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)
Steve Sakomana06e1622010-08-24 10:37:29 -0700201 sdio_direct = 0;
202 }
203
Joe Hershbergerb5db0a02011-10-12 10:31:44 +0000204 gpio_direction_input(130);
Steve Sakomana06e1622010-08-24 10:37:29 -0700205 } else {
Andreas Müllerbae485d2012-01-04 15:26:20 +0000206 puts("Error: unable to acquire sdio2 clk GPIOs\n");
Steve Sakomana06e1622010-08-24 10:37:29 -0700207 sdio_direct = -1;
208 }
209
210 return sdio_direct;
211}
212
213/*
Steve Sakomand64b5b82010-09-20 08:05:14 -0700214 * 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
218 */
219unsigned int get_expansion_id(void)
220{
221 i2c_set_bus_num(EXPANSION_EEPROM_I2C_BUS);
222
223 /* return GUMSTIX_NO_EEPROM if eeprom doesn't respond */
224 if (i2c_probe(EXPANSION_EEPROM_I2C_ADDRESS) == 1) {
225 i2c_set_bus_num(TWL4030_I2C_BUS);
226 return GUMSTIX_NO_EEPROM;
227 }
228
229 /* read configuration data */
230 i2c_read(EXPANSION_EEPROM_I2C_ADDRESS, 0, 1, (u8 *)&expansion_config,
231 sizeof(expansion_config));
232
233 i2c_set_bus_num(TWL4030_I2C_BUS);
234
235 return expansion_config.device_vendor;
236}
237
238/*
Dirk Behme9d0fc812009-01-28 21:39:57 +0100239 * Routine: misc_init_r
240 * Description: Configure board specific parts
Tom Rix58911512009-04-01 22:02:20 -0500241 */
Dirk Behme9d0fc812009-01-28 21:39:57 +0100242int misc_init_r(void)
243{
Tom Rix2c155132009-06-28 12:52:30 -0500244 twl4030_power_init();
Grazvydas Ignotasead39d72009-12-10 17:10:21 +0200245 twl4030_led_init(TWL4030_LED_LEDEN_LEDAON | TWL4030_LED_LEDEN_LEDBON);
Dirk Behme9d0fc812009-01-28 21:39:57 +0100246
Olof Johanssondf382622009-09-29 10:22:45 -0400247#if defined(CONFIG_CMD_NET)
248 setup_net_chip();
249#endif
250
Steve Sakomanc2d5b342010-08-12 15:13:02 -0700251 printf("Board revision: %d\n", get_board_revision());
Steve Sakomana06e1622010-08-24 10:37:29 -0700252
253 switch (get_sdio2_config()) {
254 case 0:
Andreas Müllerbae485d2012-01-04 15:26:20 +0000255 puts("Tranceiver detected on mmc2\n");
Steve Sakomana06e1622010-08-24 10:37:29 -0700256 MUX_OVERO_SDIO2_TRANSCEIVER();
257 break;
258 case 1:
Andreas Müllerbae485d2012-01-04 15:26:20 +0000259 puts("Direct connection on mmc2\n");
Steve Sakomana06e1622010-08-24 10:37:29 -0700260 MUX_OVERO_SDIO2_DIRECT();
261 break;
262 default:
Andreas Müllerbae485d2012-01-04 15:26:20 +0000263 puts("Unable to detect mmc2 connection type\n");
Steve Sakomana06e1622010-08-24 10:37:29 -0700264 }
265
Steve Sakomand64b5b82010-09-20 08:05:14 -0700266 switch (get_expansion_id()) {
267 case GUMSTIX_SUMMIT:
268 printf("Recognized Summit expansion board (rev %d %s)\n",
269 expansion_config.revision,
270 expansion_config.fab_revision);
271 setenv("defaultdisplay", "dvi");
272 break;
273 case GUMSTIX_TOBI:
274 printf("Recognized Tobi expansion board (rev %d %s)\n",
275 expansion_config.revision,
276 expansion_config.fab_revision);
277 setenv("defaultdisplay", "dvi");
278 break;
279 case GUMSTIX_TOBI_DUO:
280 printf("Recognized Tobi Duo expansion board (rev %d %s)\n",
281 expansion_config.revision,
282 expansion_config.fab_revision);
Philip Balister8f7109b2011-10-11 11:23:22 +0000283 /* second lan chip */
284 enable_gpmc_cs_config(gpmc_lan_config, &gpmc_cfg->cs[4],
285 0x2B000000, GPMC_SIZE_16M);
Steve Sakomand64b5b82010-09-20 08:05:14 -0700286 break;
287 case GUMSTIX_PALO35:
288 printf("Recognized Palo35 expansion board (rev %d %s)\n",
289 expansion_config.revision,
290 expansion_config.fab_revision);
291 setenv("defaultdisplay", "lcd35");
292 break;
293 case GUMSTIX_PALO43:
294 printf("Recognized Palo43 expansion board (rev %d %s)\n",
295 expansion_config.revision,
296 expansion_config.fab_revision);
297 setenv("defaultdisplay", "lcd43");
298 break;
299 case GUMSTIX_CHESTNUT43:
300 printf("Recognized Chestnut43 expansion board (rev %d %s)\n",
301 expansion_config.revision,
302 expansion_config.fab_revision);
303 setenv("defaultdisplay", "lcd43");
304 break;
305 case GUMSTIX_PINTO:
306 printf("Recognized Pinto expansion board (rev %d %s)\n",
307 expansion_config.revision,
308 expansion_config.fab_revision);
309 break;
310 case GUMSTIX_GALLOP43:
311 printf("Recognized Gallop43 expansion board (rev %d %s)\n",
312 expansion_config.revision,
313 expansion_config.fab_revision);
314 setenv("defaultdisplay", "lcd43");
315 break;
316 case ETTUS_USRP_E:
317 printf("Recognized Ettus Research USRP-E (rev %d %s)\n",
318 expansion_config.revision,
319 expansion_config.fab_revision);
320 MUX_USRP_E();
321 setenv("defaultdisplay", "dvi");
322 break;
323 case GUMSTIX_NO_EEPROM:
Andreas Müllerbae485d2012-01-04 15:26:20 +0000324 puts("No EEPROM on expansion board\n");
Steve Sakomand64b5b82010-09-20 08:05:14 -0700325 break;
326 default:
Andreas Müllerbae485d2012-01-04 15:26:20 +0000327 puts("Unrecognized expansion board\n");
Steve Sakomand64b5b82010-09-20 08:05:14 -0700328 }
329
330 if (expansion_config.content == 1)
331 setenv(expansion_config.env_var, expansion_config.env_setting);
332
Dirk Behmee6a6a702009-03-12 19:30:50 +0100333 dieid_num_r();
334
Dirk Behme9d0fc812009-01-28 21:39:57 +0100335 return 0;
336}
337
Tom Rix58911512009-04-01 22:02:20 -0500338/*
Dirk Behme9d0fc812009-01-28 21:39:57 +0100339 * Routine: set_muxconf_regs
340 * Description: Setting up the configuration Mux registers specific to the
341 * hardware. Many pins need to be moved from protect to primary
342 * mode.
Tom Rix58911512009-04-01 22:02:20 -0500343 */
Dirk Behme9d0fc812009-01-28 21:39:57 +0100344void set_muxconf_regs(void)
345{
346 MUX_OVERO();
347}
Olof Johanssondf382622009-09-29 10:22:45 -0400348
349#if defined(CONFIG_CMD_NET)
350/*
351 * Routine: setup_net_chip
352 * Description: Setting up the configuration GPMC registers specific to the
353 * Ethernet hardware.
354 */
355static void setup_net_chip(void)
356{
357 struct ctrl *ctrl_base = (struct ctrl *)OMAP34XX_CTRL_BASE;
358
Steve Sakomanba9a11e2010-08-12 21:07:02 -0700359 /* first lan chip */
360 enable_gpmc_cs_config(gpmc_lan_config, &gpmc_cfg->cs[5], 0x2C000000,
361 GPMC_SIZE_16M);
362
Olof Johanssondf382622009-09-29 10:22:45 -0400363 /* Enable off mode for NWE in PADCONF_GPMC_NWE register */
364 writew(readw(&ctrl_base ->gpmc_nwe) | 0x0E00, &ctrl_base->gpmc_nwe);
365 /* Enable off mode for NOE in PADCONF_GPMC_NADV_ALE register */
366 writew(readw(&ctrl_base->gpmc_noe) | 0x0E00, &ctrl_base->gpmc_noe);
367 /* Enable off mode for ALE in PADCONF_GPMC_NADV_ALE register */
368 writew(readw(&ctrl_base->gpmc_nadv_ale) | 0x0E00,
369 &ctrl_base->gpmc_nadv_ale);
370
371 /* Make GPIO 64 as output pin and send a magic pulse through it */
Sanjeev Premi84c3b632011-09-08 10:51:01 -0400372 if (!gpio_request(64, "")) {
373 gpio_direction_output(64, 0);
374 gpio_set_value(64, 1);
Olof Johanssondf382622009-09-29 10:22:45 -0400375 udelay(1);
Sanjeev Premi84c3b632011-09-08 10:51:01 -0400376 gpio_set_value(64, 0);
Olof Johanssondf382622009-09-29 10:22:45 -0400377 udelay(1);
Sanjeev Premi84c3b632011-09-08 10:51:01 -0400378 gpio_set_value(64, 1);
Olof Johanssondf382622009-09-29 10:22:45 -0400379 }
380}
381#endif
382
383int board_eth_init(bd_t *bis)
384{
385 int rc = 0;
386#ifdef CONFIG_SMC911X
387 rc = smc911x_initialize(0, CONFIG_SMC911X_BASE);
388#endif
389 return rc;
390}
Steve Sakomancd7c5722010-09-19 21:21:07 -0700391
Andreas Müller137703b2012-01-04 15:26:25 +0000392#if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD)
Steve Sakomancd7c5722010-09-19 21:21:07 -0700393int board_mmc_init(bd_t *bis)
394{
Nikita Kiryanove3913f52012-12-03 02:19:47 +0000395 return omap_mmc_init(0, 0, 0, -1, -1);
Steve Sakomancd7c5722010-09-19 21:21:07 -0700396}
397#endif