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[people/ms/u-boot.git] / board / ttcontrol / vision2 / vision2.c
1 /*
2 * (C) Copyright 2010
3 * Stefano Babic, DENX Software Engineering, sbabic@denx.de.
4 *
5 * (C) Copyright 2009 Freescale Semiconductor, Inc.
6 *
7 * See file CREDITS for list of people who contributed to this
8 * project.
9 *
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License as
12 * published by the Free Software Foundation; either version 2 of
13 * the License, or (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
23 * MA 02111-1307 USA
24 */
25
26 #include <common.h>
27 #include <asm/io.h>
28 #include <asm/arch/imx-regs.h>
29 #include <asm/arch/mx5x_pins.h>
30 #include <asm/arch/crm_regs.h>
31 #include <asm/arch/iomux.h>
32 #include <mxc_gpio.h>
33 #include <asm/arch/sys_proto.h>
34 #include <asm/errno.h>
35 #include <i2c.h>
36 #include <mmc.h>
37 #include <fsl_esdhc.h>
38 #include <fsl_pmic.h>
39 #include <mc13892.h>
40
41 DECLARE_GLOBAL_DATA_PTR;
42
43 static u32 system_rev;
44
45 #ifdef CONFIG_HW_WATCHDOG
46 #include <watchdog.h>
47
48 void hw_watchdog_reset(void)
49 {
50 int val;
51
52 /* toggle watchdog trigger pin */
53 val = mxc_gpio_get(66);
54 val = val ? 0 : 1;
55 mxc_gpio_set(66, val);
56 }
57 #endif
58
59 static void init_drive_strength(void)
60 {
61 mxc_iomux_set_pad(MX51_PIN_CTL_GRP_PKEDDR, PAD_CTL_DDR_INPUT_CMOS);
62 mxc_iomux_set_pad(MX51_PIN_CTL_GRP_PKEADDR, PAD_CTL_PKE_ENABLE);
63 mxc_iomux_set_pad(MX51_PIN_CTL_GRP_DDRAPKS, PAD_CTL_PUE_KEEPER);
64 mxc_iomux_set_pad(MX51_PIN_CTL_GRP_DDRAPUS, PAD_CTL_100K_PU);
65 mxc_iomux_set_pad(MX51_PIN_CTL_GRP_DDR_SR_A1, PAD_CTL_SRE_FAST);
66 mxc_iomux_set_pad(MX51_PIN_CTL_GRP_DDR_A0, PAD_CTL_DRV_HIGH);
67 mxc_iomux_set_pad(MX51_PIN_CTL_GRP_DDR_A1, PAD_CTL_DRV_HIGH);
68 mxc_iomux_set_pad(MX51_PIN_CTL_DRAM_RAS,
69 PAD_CTL_DRV_HIGH | PAD_CTL_SRE_FAST);
70 mxc_iomux_set_pad(MX51_PIN_CTL_DRAM_CAS,
71 PAD_CTL_DRV_HIGH | PAD_CTL_SRE_FAST);
72 mxc_iomux_set_pad(MX51_PIN_CTL_GRP_PKEDDR, PAD_CTL_PKE_ENABLE);
73 mxc_iomux_set_pad(MX51_PIN_CTL_GRP_DDRPKS, PAD_CTL_PUE_KEEPER);
74 mxc_iomux_set_pad(MX51_PIN_CTL_GRP_HYSDDR0, PAD_CTL_HYS_NONE);
75 mxc_iomux_set_pad(MX51_PIN_CTL_GRP_HYSDDR1, PAD_CTL_HYS_NONE);
76 mxc_iomux_set_pad(MX51_PIN_CTL_GRP_HYSDDR2, PAD_CTL_HYS_NONE);
77 mxc_iomux_set_pad(MX51_PIN_CTL_GRP_HYSDDR3, PAD_CTL_HYS_NONE);
78 mxc_iomux_set_pad(MX51_PIN_CTL_GRP_DDR_SR_B0, PAD_CTL_SRE_FAST);
79 mxc_iomux_set_pad(MX51_PIN_CTL_GRP_DDR_SR_B1, PAD_CTL_SRE_FAST);
80 mxc_iomux_set_pad(MX51_PIN_CTL_GRP_DDR_SR_B2, PAD_CTL_SRE_FAST);
81 mxc_iomux_set_pad(MX51_PIN_CTL_GRP_DDR_SR_B4, PAD_CTL_SRE_FAST);
82 mxc_iomux_set_pad(MX51_PIN_CTL_GRP_DDRPUS, PAD_CTL_100K_PU);
83 mxc_iomux_set_pad(MX51_PIN_CTL_GRP_INMODE1, PAD_CTL_DDR_INPUT_CMOS);
84 mxc_iomux_set_pad(MX51_PIN_CTL_GRP_DRAM_B0, PAD_CTL_DRV_MEDIUM);
85 mxc_iomux_set_pad(MX51_PIN_CTL_GRP_DRAM_B1, PAD_CTL_DRV_MEDIUM);
86 mxc_iomux_set_pad(MX51_PIN_CTL_GRP_DRAM_B2, PAD_CTL_DRV_MEDIUM);
87 mxc_iomux_set_pad(MX51_PIN_CTL_GRP_DRAM_B4, PAD_CTL_DRV_MEDIUM);
88
89 /* Setting pad options */
90 mxc_iomux_set_pad(MX51_PIN_CTL_DRAM_SDWE,
91 PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER |
92 PAD_CTL_DRV_HIGH | PAD_CTL_SRE_FAST);
93 mxc_iomux_set_pad(MX51_PIN_CTL_DRAM_SDCKE0,
94 PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER |
95 PAD_CTL_DRV_HIGH | PAD_CTL_SRE_FAST);
96 mxc_iomux_set_pad(MX51_PIN_CTL_DRAM_SDCKE1,
97 PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER |
98 PAD_CTL_DRV_HIGH | PAD_CTL_SRE_FAST);
99 mxc_iomux_set_pad(MX51_PIN_CTL_DRAM_SDCLK,
100 PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER |
101 PAD_CTL_DRV_HIGH | PAD_CTL_SRE_FAST);
102 mxc_iomux_set_pad(MX51_PIN_CTL_DRAM_SDQS0,
103 PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER |
104 PAD_CTL_DRV_HIGH | PAD_CTL_SRE_FAST);
105 mxc_iomux_set_pad(MX51_PIN_CTL_DRAM_SDQS1,
106 PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER |
107 PAD_CTL_DRV_HIGH | PAD_CTL_SRE_FAST);
108 mxc_iomux_set_pad(MX51_PIN_CTL_DRAM_SDQS2,
109 PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER |
110 PAD_CTL_DRV_HIGH | PAD_CTL_SRE_FAST);
111 mxc_iomux_set_pad(MX51_PIN_CTL_DRAM_SDQS3,
112 PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER |
113 PAD_CTL_DRV_HIGH | PAD_CTL_SRE_FAST);
114 mxc_iomux_set_pad(MX51_PIN_CTL_DRAM_CS0,
115 PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER |
116 PAD_CTL_DRV_HIGH | PAD_CTL_SRE_FAST);
117 mxc_iomux_set_pad(MX51_PIN_CTL_DRAM_CS1,
118 PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER |
119 PAD_CTL_DRV_HIGH | PAD_CTL_SRE_FAST);
120 mxc_iomux_set_pad(MX51_PIN_CTL_DRAM_DQM0,
121 PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER |
122 PAD_CTL_DRV_HIGH | PAD_CTL_SRE_FAST);
123 mxc_iomux_set_pad(MX51_PIN_CTL_DRAM_DQM1,
124 PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER |
125 PAD_CTL_DRV_HIGH | PAD_CTL_SRE_FAST);
126 mxc_iomux_set_pad(MX51_PIN_CTL_DRAM_DQM2,
127 PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER |
128 PAD_CTL_DRV_HIGH | PAD_CTL_SRE_FAST);
129 mxc_iomux_set_pad(MX51_PIN_CTL_DRAM_DQM3,
130 PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER |
131 PAD_CTL_DRV_HIGH | PAD_CTL_SRE_FAST);
132 }
133
134 u32 get_board_rev(void)
135 {
136 system_rev = get_cpu_rev();
137
138 return system_rev;
139 }
140
141 int dram_init(void)
142 {
143 #ifdef CONFIG_SYS_ARM_WITHOUT_RELOC
144 gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
145 gd->bd->bi_dram[0].size = get_ram_size((long *)PHYS_SDRAM_1,
146 PHYS_SDRAM_1_SIZE);
147 #if (CONFIG_NR_DRAM_BANKS > 1)
148 gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
149 gd->bd->bi_dram[1].size = get_ram_size((long *)PHYS_SDRAM_2,
150 PHYS_SDRAM_2_SIZE);
151 #endif
152 #else
153 gd->ram_size = get_ram_size((long *)PHYS_SDRAM_1,
154 PHYS_SDRAM_1_SIZE);
155 #endif
156
157 return 0;
158 }
159
160 static void setup_weim(void)
161 {
162 struct weim *pweim = (struct weim *)WEIM_BASE_ADDR;
163
164 pweim->csgcr1 = 0x004100b9;
165 pweim->csgcr2 = 0x00000001;
166 pweim->csrcr1 = 0x0a018000;
167 pweim->csrcr2 = 0;
168 pweim->cswcr1 = 0x0704a240;
169 }
170
171 static void setup_uart(void)
172 {
173 unsigned int pad = PAD_CTL_HYS_ENABLE | PAD_CTL_PKE_ENABLE |
174 PAD_CTL_PUE_PULL | PAD_CTL_DRV_HIGH | PAD_CTL_SRE_FAST;
175 /* console RX on Pin EIM_D25 */
176 mxc_request_iomux(MX51_PIN_EIM_D25, IOMUX_CONFIG_ALT3);
177 mxc_iomux_set_pad(MX51_PIN_EIM_D25, pad);
178 /* console TX on Pin EIM_D26 */
179 mxc_request_iomux(MX51_PIN_EIM_D26, IOMUX_CONFIG_ALT3);
180 mxc_iomux_set_pad(MX51_PIN_EIM_D26, pad);
181 }
182
183 #ifdef CONFIG_MXC_SPI
184 void spi_io_init(void)
185 {
186 /* 000: Select mux mode: ALT0 mux port: MOSI of instance: ecspi1 */
187 mxc_request_iomux(MX51_PIN_CSPI1_MOSI, IOMUX_CONFIG_ALT0);
188 mxc_iomux_set_pad(MX51_PIN_CSPI1_MOSI,
189 PAD_CTL_HYS_ENABLE | PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST);
190
191 /* 000: Select mux mode: ALT0 mux port: MISO of instance: ecspi1. */
192 mxc_request_iomux(MX51_PIN_CSPI1_MISO, IOMUX_CONFIG_ALT0);
193 mxc_iomux_set_pad(MX51_PIN_CSPI1_MISO,
194 PAD_CTL_HYS_ENABLE | PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST);
195
196 /* 000: Select mux mode: ALT0 mux port: SS0 of instance: ecspi1. */
197 mxc_request_iomux(MX51_PIN_CSPI1_SS0, IOMUX_CONFIG_ALT0);
198 mxc_iomux_set_pad(MX51_PIN_CSPI1_SS0,
199 PAD_CTL_HYS_ENABLE | PAD_CTL_PKE_ENABLE |
200 PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST);
201
202 /*
203 * SS1 will be used as GPIO because of uninterrupted
204 * long SPI transmissions (GPIO4_25)
205 */
206 mxc_request_iomux(MX51_PIN_CSPI1_SS1, IOMUX_CONFIG_ALT3);
207 mxc_iomux_set_pad(MX51_PIN_CSPI1_SS1,
208 PAD_CTL_HYS_ENABLE | PAD_CTL_PKE_ENABLE |
209 PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST);
210
211 /* 000: Select mux mode: ALT0 mux port: SS2 of instance: ecspi1. */
212 mxc_request_iomux(MX51_PIN_DI1_PIN11, IOMUX_CONFIG_ALT7);
213 mxc_iomux_set_pad(MX51_PIN_DI1_PIN11,
214 PAD_CTL_HYS_ENABLE | PAD_CTL_PKE_ENABLE |
215 PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST);
216
217 /* 000: Select mux mode: ALT0 mux port: SCLK of instance: ecspi1. */
218 mxc_request_iomux(MX51_PIN_CSPI1_SCLK, IOMUX_CONFIG_ALT0);
219 mxc_iomux_set_pad(MX51_PIN_CSPI1_SCLK,
220 PAD_CTL_HYS_ENABLE | PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST);
221 }
222
223 static void reset_peripherals(int reset)
224 {
225 if (reset) {
226
227 /* reset_n is on NANDF_D15 */
228 mxc_gpio_set(89, 0);
229 mxc_gpio_direction(89, MXC_GPIO_DIRECTION_OUT);
230
231 #ifdef CONFIG_VISION2_HW_1_0
232 /*
233 * set FEC Configuration lines
234 * set levels of FEC config lines
235 */
236 mxc_gpio_set(75, 0);
237 mxc_gpio_set(74, 1);
238 mxc_gpio_set(95, 1);
239 mxc_gpio_direction(75, MXC_GPIO_DIRECTION_OUT);
240 mxc_gpio_direction(74, MXC_GPIO_DIRECTION_OUT);
241 mxc_gpio_direction(95, MXC_GPIO_DIRECTION_OUT);
242
243 /* set direction of FEC config lines */
244 mxc_gpio_set(59, 0);
245 mxc_gpio_set(60, 0);
246 mxc_gpio_set(61, 0);
247 mxc_gpio_set(55, 1);
248 mxc_gpio_direction(59, MXC_GPIO_DIRECTION_OUT);
249 mxc_gpio_direction(60, MXC_GPIO_DIRECTION_OUT);
250 mxc_gpio_direction(61, MXC_GPIO_DIRECTION_OUT);
251 mxc_gpio_direction(55, MXC_GPIO_DIRECTION_OUT);
252
253 /* FEC_RXD1 - sel GPIO (2-23) for configuration -> 1 */
254 mxc_request_iomux(MX51_PIN_EIM_EB3, IOMUX_CONFIG_ALT1);
255 /* FEC_RXD2 - sel GPIO (2-27) for configuration -> 0 */
256 mxc_request_iomux(MX51_PIN_EIM_CS2, IOMUX_CONFIG_ALT1);
257 /* FEC_RXD3 - sel GPIO (2-28) for configuration -> 0 */
258 mxc_request_iomux(MX51_PIN_EIM_CS3, IOMUX_CONFIG_ALT1);
259 /* FEC_RXER - sel GPIO (2-29) for configuration -> 0 */
260 mxc_request_iomux(MX51_PIN_EIM_CS4, IOMUX_CONFIG_ALT1);
261 /* FEC_COL - sel GPIO (3-10) for configuration -> 1 */
262 mxc_request_iomux(MX51_PIN_NANDF_RB2, IOMUX_CONFIG_ALT3);
263 /* FEC_RCLK - sel GPIO (3-11) for configuration -> 0 */
264 mxc_request_iomux(MX51_PIN_NANDF_RB3, IOMUX_CONFIG_ALT3);
265 /* FEC_RXD0 - sel GPIO (3-31) for configuration -> 1 */
266 mxc_request_iomux(MX51_PIN_NANDF_D9, IOMUX_CONFIG_ALT3);
267 #endif
268
269 /*
270 * activate reset_n pin
271 * Select mux mode: ALT3 mux port: NAND D15
272 */
273 mxc_request_iomux(MX51_PIN_NANDF_D15, IOMUX_CONFIG_ALT3);
274 mxc_iomux_set_pad(MX51_PIN_NANDF_D15,
275 PAD_CTL_DRV_VOT_HIGH | PAD_CTL_DRV_MAX);
276 } else {
277 /* set FEC Control lines */
278 mxc_gpio_direction(89, MXC_GPIO_DIRECTION_IN);
279 udelay(500);
280
281 #ifdef CONFIG_VISION2_HW_1_0
282 /* FEC RDATA[3] */
283 mxc_request_iomux(MX51_PIN_EIM_CS3, IOMUX_CONFIG_ALT3);
284 mxc_iomux_set_pad(MX51_PIN_EIM_CS3, 0x180);
285
286 /* FEC RDATA[2] */
287 mxc_request_iomux(MX51_PIN_EIM_CS2, IOMUX_CONFIG_ALT3);
288 mxc_iomux_set_pad(MX51_PIN_EIM_CS2, 0x180);
289
290 /* FEC RDATA[1] */
291 mxc_request_iomux(MX51_PIN_EIM_EB3, IOMUX_CONFIG_ALT3);
292 mxc_iomux_set_pad(MX51_PIN_EIM_EB3, 0x180);
293
294 /* FEC RDATA[0] */
295 mxc_request_iomux(MX51_PIN_NANDF_D9, IOMUX_CONFIG_ALT2);
296 mxc_iomux_set_pad(MX51_PIN_NANDF_D9, 0x2180);
297
298 /* FEC RX_CLK */
299 mxc_request_iomux(MX51_PIN_NANDF_RB3, IOMUX_CONFIG_ALT1);
300 mxc_iomux_set_pad(MX51_PIN_NANDF_RB3, 0x2180);
301
302 /* FEC RX_ER */
303 mxc_request_iomux(MX51_PIN_EIM_CS4, IOMUX_CONFIG_ALT3);
304 mxc_iomux_set_pad(MX51_PIN_EIM_CS4, 0x180);
305
306 /* FEC COL */
307 mxc_request_iomux(MX51_PIN_NANDF_RB2, IOMUX_CONFIG_ALT1);
308 mxc_iomux_set_pad(MX51_PIN_NANDF_RB2, 0x2180);
309 #endif
310 }
311 }
312
313 static void power_init_mx51(void)
314 {
315 unsigned int val;
316
317 /* Write needed to Power Gate 2 register */
318 val = pmic_reg_read(REG_POWER_MISC);
319
320 /* enable VCAM with 2.775V to enable read from PMIC */
321 val = VCAMCONFIG | VCAMEN;
322 pmic_reg_write(REG_MODE_1, val);
323
324 /*
325 * Set switchers in Auto in NORMAL mode & STANDBY mode
326 * Setup the switcher mode for SW1 & SW2
327 */
328 val = pmic_reg_read(REG_SW_4);
329 val = (val & ~((SWMODE_MASK << SWMODE1_SHIFT) |
330 (SWMODE_MASK << SWMODE2_SHIFT)));
331 val |= (SWMODE_AUTO_AUTO << SWMODE1_SHIFT) |
332 (SWMODE_AUTO_AUTO << SWMODE2_SHIFT);
333 pmic_reg_write(REG_SW_4, val);
334
335 /* Setup the switcher mode for SW3 & SW4 */
336 val = pmic_reg_read(REG_SW_5);
337 val &= ~((SWMODE_MASK << SWMODE4_SHIFT) |
338 (SWMODE_MASK << SWMODE3_SHIFT));
339 val |= (SWMODE_AUTO_AUTO << SWMODE4_SHIFT) |
340 (SWMODE_AUTO_AUTO << SWMODE3_SHIFT);
341 pmic_reg_write(REG_SW_5, val);
342
343
344 /* Set VGEN3 to 1.8V, VCAM to 3.0V */
345 val = pmic_reg_read(REG_SETTING_0);
346 val &= ~(VCAM_MASK | VGEN3_MASK);
347 val |= VCAM_3_0;
348 pmic_reg_write(REG_SETTING_0, val);
349
350 /* Set VVIDEO to 2.775V, VAUDIO to 3V0, VSD to 1.8V */
351 val = pmic_reg_read(REG_SETTING_1);
352 val &= ~(VVIDEO_MASK | VSD_MASK | VAUDIO_MASK);
353 val |= VVIDEO_2_775 | VAUDIO_3_0 | VSD_1_8;
354 pmic_reg_write(REG_SETTING_1, val);
355
356 /* Configure VGEN3 and VCAM regulators to use external PNP */
357 val = VGEN3CONFIG | VCAMCONFIG;
358 pmic_reg_write(REG_MODE_1, val);
359 udelay(200);
360
361 /* Enable VGEN3, VCAM, VAUDIO, VVIDEO, VSD regulators */
362 val = VGEN3EN | VGEN3CONFIG | VCAMEN | VCAMCONFIG |
363 VVIDEOEN | VAUDIOEN | VSDEN;
364 pmic_reg_write(REG_MODE_1, val);
365
366 val = pmic_reg_read(REG_POWER_CTL2);
367 val |= WDIRESET;
368 pmic_reg_write(REG_POWER_CTL2, val);
369
370 udelay(2500);
371
372 }
373 #endif
374
375 static void setup_gpios(void)
376 {
377 unsigned int i;
378
379 /* CAM_SUP_DISn, GPIO1_7 */
380 mxc_request_iomux(MX51_PIN_GPIO1_7, IOMUX_CONFIG_ALT0);
381 mxc_iomux_set_pad(MX51_PIN_GPIO1_7, 0x82);
382
383 /* DAB Display EN, GPIO3_1 */
384 mxc_request_iomux(MX51_PIN_DI1_PIN12, IOMUX_CONFIG_ALT4);
385 mxc_iomux_set_pad(MX51_PIN_DI1_PIN12, 0x82);
386
387 /* WDOG_TRIGGER, GPIO3_2 */
388 mxc_request_iomux(MX51_PIN_DI1_PIN13, IOMUX_CONFIG_ALT4);
389 mxc_iomux_set_pad(MX51_PIN_DI1_PIN13, 0x82);
390
391 /* Now we need to trigger the watchdog */
392 WATCHDOG_RESET();
393
394 /* Display2 TxEN, GPIO3_3 */
395 mxc_request_iomux(MX51_PIN_DI1_D0_CS, IOMUX_CONFIG_ALT4);
396 mxc_iomux_set_pad(MX51_PIN_DI1_D0_CS, 0x82);
397
398 /* DAB Light EN, GPIO3_4 */
399 mxc_request_iomux(MX51_PIN_DI1_D1_CS, IOMUX_CONFIG_ALT4);
400 mxc_iomux_set_pad(MX51_PIN_DI1_D1_CS, 0x82);
401
402 /* AUDIO_MUTE, GPIO3_5 */
403 mxc_request_iomux(MX51_PIN_DISPB2_SER_DIN, IOMUX_CONFIG_ALT4);
404 mxc_iomux_set_pad(MX51_PIN_DISPB2_SER_DIN, 0x82);
405
406 /* SPARE_OUT, GPIO3_6 */
407 mxc_request_iomux(MX51_PIN_DISPB2_SER_DIO, IOMUX_CONFIG_ALT4);
408 mxc_iomux_set_pad(MX51_PIN_DISPB2_SER_DIO, 0x82);
409
410 /* BEEPER_EN, GPIO3_26 */
411 mxc_request_iomux(MX51_PIN_NANDF_D14, IOMUX_CONFIG_ALT3);
412 mxc_iomux_set_pad(MX51_PIN_NANDF_D14, 0x82);
413
414 /* POWER_OFF, GPIO3_27 */
415 mxc_request_iomux(MX51_PIN_NANDF_D13, IOMUX_CONFIG_ALT3);
416 mxc_iomux_set_pad(MX51_PIN_NANDF_D13, 0x82);
417
418 /* FRAM_WE, GPIO3_30 */
419 mxc_request_iomux(MX51_PIN_NANDF_D10, IOMUX_CONFIG_ALT3);
420 mxc_iomux_set_pad(MX51_PIN_NANDF_D10, 0x82);
421
422 /* EXPANSION_EN, GPIO4_26 */
423 mxc_request_iomux(MX51_PIN_CSPI1_RDY, IOMUX_CONFIG_ALT3);
424 mxc_iomux_set_pad(MX51_PIN_CSPI1_RDY, 0x82);
425
426 /*
427 * Set GPIO1_4 to high and output; it is used to reset
428 * the system on reboot
429 */
430 mxc_gpio_set(4, 1);
431 mxc_gpio_direction(4, MXC_GPIO_DIRECTION_OUT);
432
433 mxc_gpio_set(7, 0);
434 mxc_gpio_direction(7, MXC_GPIO_DIRECTION_OUT);
435 for (i = 65; i < 71; i++) {
436 mxc_gpio_set(i, 0);
437 mxc_gpio_direction(i, MXC_GPIO_DIRECTION_OUT);
438 }
439
440 mxc_gpio_set(94, 0);
441 mxc_gpio_direction(94, MXC_GPIO_DIRECTION_OUT);
442
443 /* Set POWER_OFF high */
444 mxc_gpio_set(91, 1);
445 mxc_gpio_direction(91, MXC_GPIO_DIRECTION_OUT);
446
447 mxc_gpio_set(90, 0);
448 mxc_gpio_direction(90, MXC_GPIO_DIRECTION_OUT);
449
450 mxc_gpio_set(122, 0);
451 mxc_gpio_direction(122, MXC_GPIO_DIRECTION_OUT);
452
453 mxc_gpio_set(121, 1);
454 mxc_gpio_direction(121, MXC_GPIO_DIRECTION_OUT);
455
456 WATCHDOG_RESET();
457 }
458
459 static void setup_fec(void)
460 {
461 /*FEC_MDIO*/
462 mxc_request_iomux(MX51_PIN_EIM_EB2, IOMUX_CONFIG_ALT3);
463 mxc_iomux_set_pad(MX51_PIN_EIM_EB2, 0x1FD);
464
465 /*FEC_MDC*/
466 mxc_request_iomux(MX51_PIN_NANDF_CS3, IOMUX_CONFIG_ALT2);
467 mxc_iomux_set_pad(MX51_PIN_NANDF_CS3, 0x2004);
468
469 /* FEC RDATA[3] */
470 mxc_request_iomux(MX51_PIN_EIM_CS3, IOMUX_CONFIG_ALT3);
471 mxc_iomux_set_pad(MX51_PIN_EIM_CS3, 0x180);
472
473 /* FEC RDATA[2] */
474 mxc_request_iomux(MX51_PIN_EIM_CS2, IOMUX_CONFIG_ALT3);
475 mxc_iomux_set_pad(MX51_PIN_EIM_CS2, 0x180);
476
477 /* FEC RDATA[1] */
478 mxc_request_iomux(MX51_PIN_EIM_EB3, IOMUX_CONFIG_ALT3);
479 mxc_iomux_set_pad(MX51_PIN_EIM_EB3, 0x180);
480
481 /* FEC RDATA[0] */
482 mxc_request_iomux(MX51_PIN_NANDF_D9, IOMUX_CONFIG_ALT2);
483 mxc_iomux_set_pad(MX51_PIN_NANDF_D9, 0x2180);
484
485 /* FEC TDATA[3] */
486 mxc_request_iomux(MX51_PIN_NANDF_CS6, IOMUX_CONFIG_ALT2);
487 mxc_iomux_set_pad(MX51_PIN_NANDF_CS6, 0x2004);
488
489 /* FEC TDATA[2] */
490 mxc_request_iomux(MX51_PIN_NANDF_CS5, IOMUX_CONFIG_ALT2);
491 mxc_iomux_set_pad(MX51_PIN_NANDF_CS5, 0x2004);
492
493 /* FEC TDATA[1] */
494 mxc_request_iomux(MX51_PIN_NANDF_CS4, IOMUX_CONFIG_ALT2);
495 mxc_iomux_set_pad(MX51_PIN_NANDF_CS4, 0x2004);
496
497 /* FEC TDATA[0] */
498 mxc_request_iomux(MX51_PIN_NANDF_D8, IOMUX_CONFIG_ALT2);
499 mxc_iomux_set_pad(MX51_PIN_NANDF_D8, 0x2004);
500
501 /* FEC TX_EN */
502 mxc_request_iomux(MX51_PIN_NANDF_CS7, IOMUX_CONFIG_ALT1);
503 mxc_iomux_set_pad(MX51_PIN_NANDF_CS7, 0x2004);
504
505 /* FEC TX_ER */
506 mxc_request_iomux(MX51_PIN_NANDF_CS2, IOMUX_CONFIG_ALT2);
507 mxc_iomux_set_pad(MX51_PIN_NANDF_CS2, 0x2004);
508
509 /* FEC TX_CLK */
510 mxc_request_iomux(MX51_PIN_NANDF_RDY_INT, IOMUX_CONFIG_ALT1);
511 mxc_iomux_set_pad(MX51_PIN_NANDF_RDY_INT, 0x2180);
512
513 /* FEC TX_COL */
514 mxc_request_iomux(MX51_PIN_NANDF_RB2, IOMUX_CONFIG_ALT1);
515 mxc_iomux_set_pad(MX51_PIN_NANDF_RB2, 0x2180);
516
517 /* FEC RX_CLK */
518 mxc_request_iomux(MX51_PIN_NANDF_RB3, IOMUX_CONFIG_ALT1);
519 mxc_iomux_set_pad(MX51_PIN_NANDF_RB3, 0x2180);
520
521 /* FEC RX_CRS */
522 mxc_request_iomux(MX51_PIN_EIM_CS5, IOMUX_CONFIG_ALT3);
523 mxc_iomux_set_pad(MX51_PIN_EIM_CS5, 0x180);
524
525 /* FEC RX_ER */
526 mxc_request_iomux(MX51_PIN_EIM_CS4, IOMUX_CONFIG_ALT3);
527 mxc_iomux_set_pad(MX51_PIN_EIM_CS4, 0x180);
528
529 /* FEC RX_DV */
530 mxc_request_iomux(MX51_PIN_NANDF_D11, IOMUX_CONFIG_ALT2);
531 mxc_iomux_set_pad(MX51_PIN_NANDF_D11, 0x2180);
532 }
533
534 struct fsl_esdhc_cfg esdhc_cfg[1] = {
535 {MMC_SDHC1_BASE_ADDR, 1},
536 };
537
538 int get_mmc_getcd(u8 *cd, struct mmc *mmc)
539 {
540 struct fsl_esdhc_cfg *cfg = (struct fsl_esdhc_cfg *)mmc->priv;
541
542 if (cfg->esdhc_base == MMC_SDHC1_BASE_ADDR)
543 *cd = mxc_gpio_get(0);
544 else
545 *cd = 0;
546
547 return 0;
548 }
549
550 #ifdef CONFIG_FSL_ESDHC
551 int board_mmc_init(bd_t *bis)
552 {
553 mxc_request_iomux(MX51_PIN_SD1_CMD,
554 IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
555 mxc_request_iomux(MX51_PIN_SD1_CLK,
556 IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
557 mxc_request_iomux(MX51_PIN_SD1_DATA0,
558 IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
559 mxc_request_iomux(MX51_PIN_SD1_DATA1,
560 IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
561 mxc_request_iomux(MX51_PIN_SD1_DATA2,
562 IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
563 mxc_request_iomux(MX51_PIN_SD1_DATA3,
564 IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
565 mxc_iomux_set_pad(MX51_PIN_SD1_CMD,
566 PAD_CTL_DRV_MAX | PAD_CTL_DRV_VOT_HIGH |
567 PAD_CTL_HYS_ENABLE | PAD_CTL_47K_PU |
568 PAD_CTL_PUE_PULL |
569 PAD_CTL_PKE_ENABLE | PAD_CTL_SRE_FAST);
570 mxc_iomux_set_pad(MX51_PIN_SD1_CLK,
571 PAD_CTL_DRV_MAX | PAD_CTL_DRV_VOT_HIGH |
572 PAD_CTL_HYS_NONE | PAD_CTL_47K_PU |
573 PAD_CTL_PUE_PULL |
574 PAD_CTL_PKE_ENABLE | PAD_CTL_SRE_FAST);
575 mxc_iomux_set_pad(MX51_PIN_SD1_DATA0,
576 PAD_CTL_DRV_MAX | PAD_CTL_DRV_VOT_HIGH |
577 PAD_CTL_HYS_ENABLE | PAD_CTL_47K_PU |
578 PAD_CTL_PUE_PULL |
579 PAD_CTL_PKE_ENABLE | PAD_CTL_SRE_FAST);
580 mxc_iomux_set_pad(MX51_PIN_SD1_DATA1,
581 PAD_CTL_DRV_MAX | PAD_CTL_DRV_VOT_HIGH |
582 PAD_CTL_HYS_ENABLE | PAD_CTL_47K_PU |
583 PAD_CTL_PUE_PULL |
584 PAD_CTL_PKE_ENABLE | PAD_CTL_SRE_FAST);
585 mxc_iomux_set_pad(MX51_PIN_SD1_DATA2,
586 PAD_CTL_DRV_MAX | PAD_CTL_DRV_VOT_HIGH |
587 PAD_CTL_HYS_ENABLE | PAD_CTL_47K_PU |
588 PAD_CTL_PUE_PULL |
589 PAD_CTL_PKE_ENABLE | PAD_CTL_SRE_FAST);
590 mxc_iomux_set_pad(MX51_PIN_SD1_DATA3,
591 PAD_CTL_DRV_MAX | PAD_CTL_DRV_VOT_HIGH |
592 PAD_CTL_HYS_ENABLE | PAD_CTL_100K_PD |
593 PAD_CTL_PUE_PULL |
594 PAD_CTL_PKE_ENABLE | PAD_CTL_SRE_FAST);
595 mxc_request_iomux(MX51_PIN_GPIO1_0,
596 IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
597 mxc_iomux_set_pad(MX51_PIN_GPIO1_0,
598 PAD_CTL_HYS_ENABLE);
599 mxc_request_iomux(MX51_PIN_GPIO1_1,
600 IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION);
601 mxc_iomux_set_pad(MX51_PIN_GPIO1_1,
602 PAD_CTL_HYS_ENABLE);
603
604 return fsl_esdhc_initialize(bis, &esdhc_cfg[0]);
605 }
606 #endif
607
608 int board_early_init_f(void)
609 {
610
611
612 init_drive_strength();
613
614 /* Setup debug led */
615 mxc_gpio_set(6, 0);
616 mxc_gpio_direction(6, MXC_GPIO_DIRECTION_OUT);
617 mxc_request_iomux(MX51_PIN_GPIO1_6, IOMUX_CONFIG_ALT0);
618 mxc_iomux_set_pad(MX51_PIN_GPIO1_6, PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST);
619
620 /* wait a little while to give the pll time to settle */
621 sdelay(100000);
622
623 setup_weim();
624 setup_uart();
625 setup_fec();
626 setup_gpios();
627
628 spi_io_init();
629
630 return 0;
631 }
632
633 int board_init(void)
634 {
635 #ifdef CONFIG_SYS_ARM_WITHOUT_RELOC
636 board_early_init_f();
637 #endif
638 gd->bd->bi_arch_number = MACH_TYPE_TTC_VISION2; /* board id for linux */
639 /* address of boot parameters */
640 gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
641
642 return 0;
643 }
644
645 int board_late_init(void)
646 {
647 power_init_mx51();
648
649 reset_peripherals(1);
650 udelay(2000);
651 reset_peripherals(0);
652 udelay(2000);
653
654 /* Early revisions require a second reset */
655 #ifdef CONFIG_VISION2_HW_1_0
656 reset_peripherals(1);
657 udelay(2000);
658 reset_peripherals(0);
659 udelay(2000);
660 #endif
661
662 return 0;
663 }
664
665 int checkboard(void)
666 {
667 u32 system_rev = get_cpu_rev();
668 u32 cause;
669 struct src *src_regs = (struct src *)SRC_BASE_ADDR;
670
671 puts("Board: TTControl Vision II CPU V");
672
673 switch (system_rev & 0xff) {
674 case CHIP_REV_3_0:
675 puts("3.0 [");
676 break;
677 case CHIP_REV_2_5:
678 puts("2.5 [");
679 break;
680 case CHIP_REV_2_0:
681 puts("2.0 [");
682 break;
683 case CHIP_REV_1_1:
684 puts("1.1 [");
685 break;
686 case CHIP_REV_1_0:
687 default:
688 puts("1.0 [");
689 break;
690 }
691
692 cause = src_regs->srsr;
693 switch (cause) {
694 case 0x0001:
695 puts("POR");
696 break;
697 case 0x0009:
698 puts("RST");
699 break;
700 case 0x0010:
701 case 0x0011:
702 puts("WDOG");
703 break;
704 default:
705 printf("unknown 0x%x", cause);
706 }
707 puts("]\n");
708
709 return 0;
710 }
711
"Das U-Boot" Source Tree