xref: /openbmc/u-boot/board/ti/am43xx/board.c (revision 63d98598)
1 /*
2  * board.c
3  *
4  * Board functions for TI AM43XX based boards
5  *
6  * Copyright (C) 2013, Texas Instruments, Incorporated - http://www.ti.com/
7  *
8  * SPDX-License-Identifier:	GPL-2.0+
9  */
10 
11 #include <common.h>
12 #include <i2c.h>
13 #include <asm/errno.h>
14 #include <spl.h>
15 #include <usb.h>
16 #include <asm/omap_sec_common.h>
17 #include <asm/arch/clock.h>
18 #include <asm/arch/sys_proto.h>
19 #include <asm/arch/mux.h>
20 #include <asm/arch/ddr_defs.h>
21 #include <asm/arch/gpio.h>
22 #include <asm/emif.h>
23 #include "../common/board_detect.h"
24 #include "board.h"
25 #include <power/pmic.h>
26 #include <power/tps65218.h>
27 #include <power/tps62362.h>
28 #include <miiphy.h>
29 #include <cpsw.h>
30 #include <linux/usb/gadget.h>
31 #include <dwc3-uboot.h>
32 #include <dwc3-omap-uboot.h>
33 #include <ti-usb-phy-uboot.h>
34 
35 DECLARE_GLOBAL_DATA_PTR;
36 
37 static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
38 
39 /*
40  * Read header information from EEPROM into global structure.
41  */
42 static inline int __maybe_unused read_eeprom(void)
43 {
44 	return ti_i2c_eeprom_am_get(-1, CONFIG_SYS_I2C_EEPROM_ADDR);
45 }
46 
47 #ifndef CONFIG_SKIP_LOWLEVEL_INIT
48 
49 #define NUM_OPPS	6
50 
51 const struct dpll_params dpll_mpu[NUM_CRYSTAL_FREQ][NUM_OPPS] = {
52 	{	/* 19.2 MHz */
53 		{125, 3, 2, -1, -1, -1, -1},	/* OPP 50 */
54 		{-1, -1, -1, -1, -1, -1, -1},	/* OPP RESERVED	*/
55 		{125, 3, 1, -1, -1, -1, -1},	/* OPP 100 */
56 		{150, 3, 1, -1, -1, -1, -1},	/* OPP 120 */
57 		{125, 2, 1, -1, -1, -1, -1},	/* OPP TB */
58 		{625, 11, 1, -1, -1, -1, -1}	/* OPP NT */
59 	},
60 	{	/* 24 MHz */
61 		{300, 23, 1, -1, -1, -1, -1},	/* OPP 50 */
62 		{-1, -1, -1, -1, -1, -1, -1},	/* OPP RESERVED	*/
63 		{600, 23, 1, -1, -1, -1, -1},	/* OPP 100 */
64 		{720, 23, 1, -1, -1, -1, -1},	/* OPP 120 */
65 		{800, 23, 1, -1, -1, -1, -1},	/* OPP TB */
66 		{1000, 23, 1, -1, -1, -1, -1}	/* OPP NT */
67 	},
68 	{	/* 25 MHz */
69 		{300, 24, 1, -1, -1, -1, -1},	/* OPP 50 */
70 		{-1, -1, -1, -1, -1, -1, -1},	/* OPP RESERVED	*/
71 		{600, 24, 1, -1, -1, -1, -1},	/* OPP 100 */
72 		{720, 24, 1, -1, -1, -1, -1},	/* OPP 120 */
73 		{800, 24, 1, -1, -1, -1, -1},	/* OPP TB */
74 		{1000, 24, 1, -1, -1, -1, -1}	/* OPP NT */
75 	},
76 	{	/* 26 MHz */
77 		{300, 25, 1, -1, -1, -1, -1},	/* OPP 50 */
78 		{-1, -1, -1, -1, -1, -1, -1},	/* OPP RESERVED	*/
79 		{600, 25, 1, -1, -1, -1, -1},	/* OPP 100 */
80 		{720, 25, 1, -1, -1, -1, -1},	/* OPP 120 */
81 		{800, 25, 1, -1, -1, -1, -1},	/* OPP TB */
82 		{1000, 25, 1, -1, -1, -1, -1}	/* OPP NT */
83 	},
84 };
85 
86 const struct dpll_params dpll_core[NUM_CRYSTAL_FREQ] = {
87 		{625, 11, -1, -1, 10, 8, 4},	/* 19.2 MHz */
88 		{1000, 23, -1, -1, 10, 8, 4},	/* 24 MHz */
89 		{1000, 24, -1, -1, 10, 8, 4},	/* 25 MHz */
90 		{1000, 25, -1, -1, 10, 8, 4}	/* 26 MHz */
91 };
92 
93 const struct dpll_params dpll_per[NUM_CRYSTAL_FREQ] = {
94 		{400, 7, 5, -1, -1, -1, -1},	/* 19.2 MHz */
95 		{400, 9, 5, -1, -1, -1, -1},	/* 24 MHz */
96 		{384, 9, 5, -1, -1, -1, -1},	/* 25 MHz */
97 		{480, 12, 5, -1, -1, -1, -1}	/* 26 MHz */
98 };
99 
100 const struct dpll_params epos_evm_dpll_ddr[NUM_CRYSTAL_FREQ] = {
101 		{665, 47, 1, -1, 4, -1, -1}, /*19.2*/
102 		{133, 11, 1, -1, 4, -1, -1}, /* 24 MHz */
103 		{266, 24, 1, -1, 4, -1, -1}, /* 25 MHz */
104 		{133, 12, 1, -1, 4, -1, -1}  /* 26 MHz */
105 };
106 
107 const struct dpll_params gp_evm_dpll_ddr = {
108 		50, 2, 1, -1, 2, -1, -1};
109 
110 static const struct dpll_params idk_dpll_ddr = {
111 	400, 23, 1, -1, 2, -1, -1
112 };
113 
114 static const u32 ext_phy_ctrl_const_base_lpddr2[] = {
115 	0x00500050,
116 	0x00350035,
117 	0x00350035,
118 	0x00350035,
119 	0x00350035,
120 	0x00350035,
121 	0x00000000,
122 	0x00000000,
123 	0x00000000,
124 	0x00000000,
125 	0x00000000,
126 	0x00000000,
127 	0x00000000,
128 	0x00000000,
129 	0x00000000,
130 	0x00000000,
131 	0x00000000,
132 	0x00000000,
133 	0x40001000,
134 	0x08102040
135 };
136 
137 const struct ctrl_ioregs ioregs_lpddr2 = {
138 	.cm0ioctl		= LPDDR2_ADDRCTRL_IOCTRL_VALUE,
139 	.cm1ioctl		= LPDDR2_ADDRCTRL_WD0_IOCTRL_VALUE,
140 	.cm2ioctl		= LPDDR2_ADDRCTRL_WD1_IOCTRL_VALUE,
141 	.dt0ioctl		= LPDDR2_DATA0_IOCTRL_VALUE,
142 	.dt1ioctl		= LPDDR2_DATA0_IOCTRL_VALUE,
143 	.dt2ioctrl		= LPDDR2_DATA0_IOCTRL_VALUE,
144 	.dt3ioctrl		= LPDDR2_DATA0_IOCTRL_VALUE,
145 	.emif_sdram_config_ext	= 0x1,
146 };
147 
148 const struct emif_regs emif_regs_lpddr2 = {
149 	.sdram_config			= 0x808012BA,
150 	.ref_ctrl			= 0x0000040D,
151 	.sdram_tim1			= 0xEA86B411,
152 	.sdram_tim2			= 0x103A094A,
153 	.sdram_tim3			= 0x0F6BA37F,
154 	.read_idle_ctrl			= 0x00050000,
155 	.zq_config			= 0x50074BE4,
156 	.temp_alert_config		= 0x0,
157 	.emif_rd_wr_lvl_rmp_win		= 0x0,
158 	.emif_rd_wr_lvl_rmp_ctl		= 0x0,
159 	.emif_rd_wr_lvl_ctl		= 0x0,
160 	.emif_ddr_phy_ctlr_1		= 0x0E284006,
161 	.emif_rd_wr_exec_thresh		= 0x80000405,
162 	.emif_ddr_ext_phy_ctrl_1	= 0x04010040,
163 	.emif_ddr_ext_phy_ctrl_2	= 0x00500050,
164 	.emif_ddr_ext_phy_ctrl_3	= 0x00500050,
165 	.emif_ddr_ext_phy_ctrl_4	= 0x00500050,
166 	.emif_ddr_ext_phy_ctrl_5	= 0x00500050,
167 	.emif_prio_class_serv_map	= 0x80000001,
168 	.emif_connect_id_serv_1_map	= 0x80000094,
169 	.emif_connect_id_serv_2_map	= 0x00000000,
170 	.emif_cos_config			= 0x000FFFFF
171 };
172 
173 const struct ctrl_ioregs ioregs_ddr3 = {
174 	.cm0ioctl		= DDR3_ADDRCTRL_IOCTRL_VALUE,
175 	.cm1ioctl		= DDR3_ADDRCTRL_WD0_IOCTRL_VALUE,
176 	.cm2ioctl		= DDR3_ADDRCTRL_WD1_IOCTRL_VALUE,
177 	.dt0ioctl		= DDR3_DATA0_IOCTRL_VALUE,
178 	.dt1ioctl		= DDR3_DATA0_IOCTRL_VALUE,
179 	.dt2ioctrl		= DDR3_DATA0_IOCTRL_VALUE,
180 	.dt3ioctrl		= DDR3_DATA0_IOCTRL_VALUE,
181 	.emif_sdram_config_ext	= 0xc163,
182 };
183 
184 const struct emif_regs ddr3_emif_regs_400Mhz = {
185 	.sdram_config			= 0x638413B2,
186 	.ref_ctrl			= 0x00000C30,
187 	.sdram_tim1			= 0xEAAAD4DB,
188 	.sdram_tim2			= 0x266B7FDA,
189 	.sdram_tim3			= 0x107F8678,
190 	.read_idle_ctrl			= 0x00050000,
191 	.zq_config			= 0x50074BE4,
192 	.temp_alert_config		= 0x0,
193 	.emif_ddr_phy_ctlr_1		= 0x0E004008,
194 	.emif_ddr_ext_phy_ctrl_1	= 0x08020080,
195 	.emif_ddr_ext_phy_ctrl_2	= 0x00400040,
196 	.emif_ddr_ext_phy_ctrl_3	= 0x00400040,
197 	.emif_ddr_ext_phy_ctrl_4	= 0x00400040,
198 	.emif_ddr_ext_phy_ctrl_5	= 0x00400040,
199 	.emif_rd_wr_lvl_rmp_win		= 0x0,
200 	.emif_rd_wr_lvl_rmp_ctl		= 0x0,
201 	.emif_rd_wr_lvl_ctl		= 0x0,
202 	.emif_rd_wr_exec_thresh		= 0x80000405,
203 	.emif_prio_class_serv_map	= 0x80000001,
204 	.emif_connect_id_serv_1_map	= 0x80000094,
205 	.emif_connect_id_serv_2_map	= 0x00000000,
206 	.emif_cos_config		= 0x000FFFFF
207 };
208 
209 /* EMIF DDR3 Configurations are different for beta AM43X GP EVMs */
210 const struct emif_regs ddr3_emif_regs_400Mhz_beta = {
211 	.sdram_config			= 0x638413B2,
212 	.ref_ctrl			= 0x00000C30,
213 	.sdram_tim1			= 0xEAAAD4DB,
214 	.sdram_tim2			= 0x266B7FDA,
215 	.sdram_tim3			= 0x107F8678,
216 	.read_idle_ctrl			= 0x00050000,
217 	.zq_config			= 0x50074BE4,
218 	.temp_alert_config		= 0x0,
219 	.emif_ddr_phy_ctlr_1		= 0x0E004008,
220 	.emif_ddr_ext_phy_ctrl_1	= 0x08020080,
221 	.emif_ddr_ext_phy_ctrl_2	= 0x00000065,
222 	.emif_ddr_ext_phy_ctrl_3	= 0x00000091,
223 	.emif_ddr_ext_phy_ctrl_4	= 0x000000B5,
224 	.emif_ddr_ext_phy_ctrl_5	= 0x000000E5,
225 	.emif_rd_wr_exec_thresh		= 0x80000405,
226 	.emif_prio_class_serv_map	= 0x80000001,
227 	.emif_connect_id_serv_1_map	= 0x80000094,
228 	.emif_connect_id_serv_2_map	= 0x00000000,
229 	.emif_cos_config		= 0x000FFFFF
230 };
231 
232 /* EMIF DDR3 Configurations are different for production AM43X GP EVMs */
233 const struct emif_regs ddr3_emif_regs_400Mhz_production = {
234 	.sdram_config			= 0x638413B2,
235 	.ref_ctrl			= 0x00000C30,
236 	.sdram_tim1			= 0xEAAAD4DB,
237 	.sdram_tim2			= 0x266B7FDA,
238 	.sdram_tim3			= 0x107F8678,
239 	.read_idle_ctrl			= 0x00050000,
240 	.zq_config			= 0x50074BE4,
241 	.temp_alert_config		= 0x0,
242 	.emif_ddr_phy_ctlr_1		= 0x0E004008,
243 	.emif_ddr_ext_phy_ctrl_1	= 0x08020080,
244 	.emif_ddr_ext_phy_ctrl_2	= 0x00000066,
245 	.emif_ddr_ext_phy_ctrl_3	= 0x00000091,
246 	.emif_ddr_ext_phy_ctrl_4	= 0x000000B9,
247 	.emif_ddr_ext_phy_ctrl_5	= 0x000000E6,
248 	.emif_rd_wr_exec_thresh		= 0x80000405,
249 	.emif_prio_class_serv_map	= 0x80000001,
250 	.emif_connect_id_serv_1_map	= 0x80000094,
251 	.emif_connect_id_serv_2_map	= 0x00000000,
252 	.emif_cos_config		= 0x000FFFFF
253 };
254 
255 static const struct emif_regs ddr3_sk_emif_regs_400Mhz = {
256 	.sdram_config			= 0x638413b2,
257 	.sdram_config2			= 0x00000000,
258 	.ref_ctrl			= 0x00000c30,
259 	.sdram_tim1			= 0xeaaad4db,
260 	.sdram_tim2			= 0x266b7fda,
261 	.sdram_tim3			= 0x107f8678,
262 	.read_idle_ctrl			= 0x00050000,
263 	.zq_config			= 0x50074be4,
264 	.temp_alert_config		= 0x0,
265 	.emif_ddr_phy_ctlr_1		= 0x0e084008,
266 	.emif_ddr_ext_phy_ctrl_1	= 0x08020080,
267 	.emif_ddr_ext_phy_ctrl_2	= 0x89,
268 	.emif_ddr_ext_phy_ctrl_3	= 0x90,
269 	.emif_ddr_ext_phy_ctrl_4	= 0x8e,
270 	.emif_ddr_ext_phy_ctrl_5	= 0x8d,
271 	.emif_rd_wr_lvl_rmp_win		= 0x0,
272 	.emif_rd_wr_lvl_rmp_ctl		= 0x00000000,
273 	.emif_rd_wr_lvl_ctl		= 0x00000000,
274 	.emif_rd_wr_exec_thresh		= 0x80000000,
275 	.emif_prio_class_serv_map	= 0x80000001,
276 	.emif_connect_id_serv_1_map	= 0x80000094,
277 	.emif_connect_id_serv_2_map	= 0x00000000,
278 	.emif_cos_config		= 0x000FFFFF
279 };
280 
281 static const struct emif_regs ddr3_idk_emif_regs_400Mhz = {
282 	.sdram_config			= 0x61a11b32,
283 	.sdram_config2			= 0x00000000,
284 	.ref_ctrl			= 0x00000c30,
285 	.sdram_tim1			= 0xeaaad4db,
286 	.sdram_tim2			= 0x266b7fda,
287 	.sdram_tim3			= 0x107f8678,
288 	.read_idle_ctrl			= 0x00050000,
289 	.zq_config			= 0x50074be4,
290 	.temp_alert_config		= 0x00000000,
291 	.emif_ddr_phy_ctlr_1		= 0x00008009,
292 	.emif_ddr_ext_phy_ctrl_1	= 0x08020080,
293 	.emif_ddr_ext_phy_ctrl_2	= 0x00000040,
294 	.emif_ddr_ext_phy_ctrl_3	= 0x0000003e,
295 	.emif_ddr_ext_phy_ctrl_4	= 0x00000051,
296 	.emif_ddr_ext_phy_ctrl_5	= 0x00000051,
297 	.emif_rd_wr_lvl_rmp_win		= 0x00000000,
298 	.emif_rd_wr_lvl_rmp_ctl		= 0x00000000,
299 	.emif_rd_wr_lvl_ctl		= 0x00000000,
300 	.emif_rd_wr_exec_thresh		= 0x00000405,
301 	.emif_prio_class_serv_map	= 0x00000000,
302 	.emif_connect_id_serv_1_map	= 0x00000000,
303 	.emif_connect_id_serv_2_map	= 0x00000000,
304 	.emif_cos_config		= 0x00ffffff
305 };
306 
307 void emif_get_ext_phy_ctrl_const_regs(const u32 **regs, u32 *size)
308 {
309 	if (board_is_eposevm()) {
310 		*regs = ext_phy_ctrl_const_base_lpddr2;
311 		*size = ARRAY_SIZE(ext_phy_ctrl_const_base_lpddr2);
312 	}
313 
314 	return;
315 }
316 
317 /*
318  * get_sys_clk_index : returns the index of the sys_clk read from
319  *			ctrl status register. This value is either
320  *			read from efuse or sysboot pins.
321  */
322 static u32 get_sys_clk_index(void)
323 {
324 	struct ctrl_stat *ctrl = (struct ctrl_stat *)CTRL_BASE;
325 	u32 ind = readl(&ctrl->statusreg), src;
326 
327 	src = (ind & CTRL_CRYSTAL_FREQ_SRC_MASK) >> CTRL_CRYSTAL_FREQ_SRC_SHIFT;
328 	if (src == CTRL_CRYSTAL_FREQ_SRC_EFUSE) /* Value read from EFUSE */
329 		return ((ind & CTRL_CRYSTAL_FREQ_SELECTION_MASK) >>
330 			CTRL_CRYSTAL_FREQ_SELECTION_SHIFT);
331 	else /* Value read from SYS BOOT pins */
332 		return ((ind & CTRL_SYSBOOT_15_14_MASK) >>
333 			CTRL_SYSBOOT_15_14_SHIFT);
334 }
335 
336 const struct dpll_params *get_dpll_ddr_params(void)
337 {
338 	int ind = get_sys_clk_index();
339 
340 	if (read_eeprom() < 0)
341 		return NULL;
342 
343 	if (board_is_eposevm())
344 		return &epos_evm_dpll_ddr[ind];
345 	else if (board_is_evm() || board_is_sk())
346 		return &gp_evm_dpll_ddr;
347 	else if (board_is_idk())
348 		return &idk_dpll_ddr;
349 
350 	printf(" Board '%s' not supported\n", board_ti_get_name());
351 	return NULL;
352 }
353 
354 
355 /*
356  * get_opp_offset:
357  * Returns the index for safest OPP of the device to boot.
358  * max_off:	Index of the MAX OPP in DEV ATTRIBUTE register.
359  * min_off:	Index of the MIN OPP in DEV ATTRIBUTE register.
360  * This data is read from dev_attribute register which is e-fused.
361  * A'1' in bit indicates OPP disabled and not available, a '0' indicates
362  * OPP available. Lowest OPP starts with min_off. So returning the
363  * bit with rightmost '0'.
364  */
365 static int get_opp_offset(int max_off, int min_off)
366 {
367 	struct ctrl_stat *ctrl = (struct ctrl_stat *)CTRL_BASE;
368 	int opp, offset, i;
369 
370 	/* Bits 0:11 are defined to be the MPU_MAX_FREQ */
371 	opp = readl(&ctrl->dev_attr) & ~0xFFFFF000;
372 
373 	for (i = max_off; i >= min_off; i--) {
374 		offset = opp & (1 << i);
375 		if (!offset)
376 			return i;
377 	}
378 
379 	return min_off;
380 }
381 
382 const struct dpll_params *get_dpll_mpu_params(void)
383 {
384 	int opp = get_opp_offset(DEV_ATTR_MAX_OFFSET, DEV_ATTR_MIN_OFFSET);
385 	u32 ind = get_sys_clk_index();
386 
387 	return &dpll_mpu[ind][opp];
388 }
389 
390 const struct dpll_params *get_dpll_core_params(void)
391 {
392 	int ind = get_sys_clk_index();
393 
394 	return &dpll_core[ind];
395 }
396 
397 const struct dpll_params *get_dpll_per_params(void)
398 {
399 	int ind = get_sys_clk_index();
400 
401 	return &dpll_per[ind];
402 }
403 
404 void scale_vcores_generic(u32 m)
405 {
406 	int mpu_vdd;
407 
408 	if (i2c_probe(TPS65218_CHIP_PM))
409 		return;
410 
411 	switch (m) {
412 	case 1000:
413 		mpu_vdd = TPS65218_DCDC_VOLT_SEL_1330MV;
414 		break;
415 	case 800:
416 		mpu_vdd = TPS65218_DCDC_VOLT_SEL_1260MV;
417 		break;
418 	case 720:
419 		mpu_vdd = TPS65218_DCDC_VOLT_SEL_1200MV;
420 		break;
421 	case 600:
422 		mpu_vdd = TPS65218_DCDC_VOLT_SEL_1100MV;
423 		break;
424 	case 300:
425 		mpu_vdd = TPS65218_DCDC_VOLT_SEL_0950MV;
426 		break;
427 	default:
428 		puts("Unknown MPU clock, not scaling\n");
429 		return;
430 	}
431 
432 	/* Set DCDC1 (CORE) voltage to 1.1V */
433 	if (tps65218_voltage_update(TPS65218_DCDC1,
434 				    TPS65218_DCDC_VOLT_SEL_1100MV)) {
435 		printf("%s failure\n", __func__);
436 		return;
437 	}
438 
439 	/* Set DCDC2 (MPU) voltage */
440 	if (tps65218_voltage_update(TPS65218_DCDC2, mpu_vdd)) {
441 		printf("%s failure\n", __func__);
442 		return;
443 	}
444 }
445 
446 void scale_vcores_idk(u32 m)
447 {
448 	int mpu_vdd;
449 
450 	if (i2c_probe(TPS62362_I2C_ADDR))
451 		return;
452 
453 	switch (m) {
454 	case 1000:
455 		mpu_vdd = TPS62362_DCDC_VOLT_SEL_1330MV;
456 		break;
457 	case 800:
458 		mpu_vdd = TPS62362_DCDC_VOLT_SEL_1260MV;
459 		break;
460 	case 720:
461 		mpu_vdd = TPS62362_DCDC_VOLT_SEL_1200MV;
462 		break;
463 	case 600:
464 		mpu_vdd = TPS62362_DCDC_VOLT_SEL_1100MV;
465 		break;
466 	case 300:
467 		mpu_vdd = TPS62362_DCDC_VOLT_SEL_1330MV;
468 		break;
469 	default:
470 		puts("Unknown MPU clock, not scaling\n");
471 		return;
472 	}
473 
474 	/* Set VDD_MPU voltage */
475 	if (tps62362_voltage_update(TPS62362_SET3, mpu_vdd)) {
476 		printf("%s failure\n", __func__);
477 		return;
478 	}
479 }
480 
481 void gpi2c_init(void)
482 {
483 	/* When needed to be invoked prior to BSS initialization */
484 	static bool first_time = true;
485 
486 	if (first_time) {
487 		enable_i2c0_pin_mux();
488 		i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED,
489 			 CONFIG_SYS_OMAP24_I2C_SLAVE);
490 		first_time = false;
491 	}
492 }
493 
494 void scale_vcores(void)
495 {
496 	const struct dpll_params *mpu_params;
497 
498 	if (read_eeprom() < 0)
499 		puts("Could not get board ID.\n");
500 
501 	/* Ensure I2C is initialized for PMIC configuration */
502 	gpi2c_init();
503 
504 	/* Get the frequency */
505 	mpu_params = get_dpll_mpu_params();
506 
507 	if (board_is_idk())
508 		scale_vcores_idk(mpu_params->m);
509 	else
510 		scale_vcores_generic(mpu_params->m);
511 }
512 
513 void set_uart_mux_conf(void)
514 {
515 	enable_uart0_pin_mux();
516 }
517 
518 void set_mux_conf_regs(void)
519 {
520 	enable_board_pin_mux();
521 }
522 
523 static void enable_vtt_regulator(void)
524 {
525 	u32 temp;
526 
527 	/* enable module */
528 	writel(GPIO_CTRL_ENABLEMODULE, AM33XX_GPIO5_BASE + OMAP_GPIO_CTRL);
529 
530 	/* enable output for GPIO5_7 */
531 	writel(GPIO_SETDATAOUT(7),
532 	       AM33XX_GPIO5_BASE + OMAP_GPIO_SETDATAOUT);
533 	temp = readl(AM33XX_GPIO5_BASE + OMAP_GPIO_OE);
534 	temp = temp & ~(GPIO_OE_ENABLE(7));
535 	writel(temp, AM33XX_GPIO5_BASE + OMAP_GPIO_OE);
536 }
537 
538 void sdram_init(void)
539 {
540 	if (read_eeprom() < 0)
541 		return;
542 	/*
543 	 * EPOS EVM has 1GB LPDDR2 connected to EMIF.
544 	 * GP EMV has 1GB DDR3 connected to EMIF
545 	 * along with VTT regulator.
546 	 */
547 	if (board_is_eposevm()) {
548 		config_ddr(0, &ioregs_lpddr2, NULL, NULL, &emif_regs_lpddr2, 0);
549 	} else if (board_is_evm_14_or_later()) {
550 		enable_vtt_regulator();
551 		config_ddr(0, &ioregs_ddr3, NULL, NULL,
552 			   &ddr3_emif_regs_400Mhz_production, 0);
553 	} else if (board_is_evm_12_or_later()) {
554 		enable_vtt_regulator();
555 		config_ddr(0, &ioregs_ddr3, NULL, NULL,
556 			   &ddr3_emif_regs_400Mhz_beta, 0);
557 	} else if (board_is_evm()) {
558 		enable_vtt_regulator();
559 		config_ddr(0, &ioregs_ddr3, NULL, NULL,
560 			   &ddr3_emif_regs_400Mhz, 0);
561 	} else if (board_is_sk()) {
562 		config_ddr(400, &ioregs_ddr3, NULL, NULL,
563 			   &ddr3_sk_emif_regs_400Mhz, 0);
564 	} else if (board_is_idk()) {
565 		config_ddr(400, &ioregs_ddr3, NULL, NULL,
566 			   &ddr3_idk_emif_regs_400Mhz, 0);
567 	}
568 }
569 #endif
570 
571 /* setup board specific PMIC */
572 int power_init_board(void)
573 {
574 	struct pmic *p;
575 
576 	if (board_is_idk()) {
577 		power_tps62362_init(I2C_PMIC);
578 		p = pmic_get("TPS62362");
579 		if (p && !pmic_probe(p))
580 			puts("PMIC:  TPS62362\n");
581 	} else {
582 		power_tps65218_init(I2C_PMIC);
583 		p = pmic_get("TPS65218_PMIC");
584 		if (p && !pmic_probe(p))
585 			puts("PMIC:  TPS65218\n");
586 	}
587 
588 	return 0;
589 }
590 
591 int board_init(void)
592 {
593 	struct l3f_cfg_bwlimiter *bwlimiter = (struct l3f_cfg_bwlimiter *)L3F_CFG_BWLIMITER;
594 	u32 mreqprio_0, mreqprio_1, modena_init0_bw_fractional,
595 	    modena_init0_bw_integer, modena_init0_watermark_0;
596 
597 	gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
598 	gpmc_init();
599 
600 	/* Clear all important bits for DSS errata that may need to be tweaked*/
601 	mreqprio_0 = readl(&cdev->mreqprio_0) & MREQPRIO_0_SAB_INIT1_MASK &
602 	                   MREQPRIO_0_SAB_INIT0_MASK;
603 
604 	mreqprio_1 = readl(&cdev->mreqprio_1) & MREQPRIO_1_DSS_MASK;
605 
606 	modena_init0_bw_fractional = readl(&bwlimiter->modena_init0_bw_fractional) &
607 	                                   BW_LIMITER_BW_FRAC_MASK;
608 
609 	modena_init0_bw_integer = readl(&bwlimiter->modena_init0_bw_integer) &
610 	                                BW_LIMITER_BW_INT_MASK;
611 
612 	modena_init0_watermark_0 = readl(&bwlimiter->modena_init0_watermark_0) &
613 	                                 BW_LIMITER_BW_WATERMARK_MASK;
614 
615 	/* Setting MReq Priority of the DSS*/
616 	mreqprio_0 |= 0x77;
617 
618 	/*
619 	 * Set L3 Fast Configuration Register
620 	 * Limiting bandwith for ARM core to 700 MBPS
621 	 */
622 	modena_init0_bw_fractional |= 0x10;
623 	modena_init0_bw_integer |= 0x3;
624 
625 	writel(mreqprio_0, &cdev->mreqprio_0);
626 	writel(mreqprio_1, &cdev->mreqprio_1);
627 
628 	writel(modena_init0_bw_fractional, &bwlimiter->modena_init0_bw_fractional);
629 	writel(modena_init0_bw_integer, &bwlimiter->modena_init0_bw_integer);
630 	writel(modena_init0_watermark_0, &bwlimiter->modena_init0_watermark_0);
631 
632 	return 0;
633 }
634 
635 #ifdef CONFIG_BOARD_LATE_INIT
636 int board_late_init(void)
637 {
638 #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
639 	set_board_info_env(NULL);
640 #endif
641 	return 0;
642 }
643 #endif
644 
645 #ifdef CONFIG_USB_DWC3
646 static struct dwc3_device usb_otg_ss1 = {
647 	.maximum_speed = USB_SPEED_HIGH,
648 	.base = USB_OTG_SS1_BASE,
649 	.tx_fifo_resize = false,
650 	.index = 0,
651 };
652 
653 static struct dwc3_omap_device usb_otg_ss1_glue = {
654 	.base = (void *)USB_OTG_SS1_GLUE_BASE,
655 	.utmi_mode = DWC3_OMAP_UTMI_MODE_SW,
656 	.index = 0,
657 };
658 
659 static struct ti_usb_phy_device usb_phy1_device = {
660 	.usb2_phy_power = (void *)USB2_PHY1_POWER,
661 	.index = 0,
662 };
663 
664 static struct dwc3_device usb_otg_ss2 = {
665 	.maximum_speed = USB_SPEED_HIGH,
666 	.base = USB_OTG_SS2_BASE,
667 	.tx_fifo_resize = false,
668 	.index = 1,
669 };
670 
671 static struct dwc3_omap_device usb_otg_ss2_glue = {
672 	.base = (void *)USB_OTG_SS2_GLUE_BASE,
673 	.utmi_mode = DWC3_OMAP_UTMI_MODE_SW,
674 	.index = 1,
675 };
676 
677 static struct ti_usb_phy_device usb_phy2_device = {
678 	.usb2_phy_power = (void *)USB2_PHY2_POWER,
679 	.index = 1,
680 };
681 
682 int usb_gadget_handle_interrupts(int index)
683 {
684 	u32 status;
685 
686 	status = dwc3_omap_uboot_interrupt_status(index);
687 	if (status)
688 		dwc3_uboot_handle_interrupt(index);
689 
690 	return 0;
691 }
692 #endif /* CONFIG_USB_DWC3 */
693 
694 #if defined(CONFIG_USB_DWC3) || defined(CONFIG_USB_XHCI_OMAP)
695 int board_usb_init(int index, enum usb_init_type init)
696 {
697 	enable_usb_clocks(index);
698 #ifdef CONFIG_USB_DWC3
699 	switch (index) {
700 	case 0:
701 		if (init == USB_INIT_DEVICE) {
702 			usb_otg_ss1.dr_mode = USB_DR_MODE_PERIPHERAL;
703 			usb_otg_ss1_glue.vbus_id_status = OMAP_DWC3_VBUS_VALID;
704 			dwc3_omap_uboot_init(&usb_otg_ss1_glue);
705 			ti_usb_phy_uboot_init(&usb_phy1_device);
706 			dwc3_uboot_init(&usb_otg_ss1);
707 		}
708 		break;
709 	case 1:
710 		if (init == USB_INIT_DEVICE) {
711 			usb_otg_ss2.dr_mode = USB_DR_MODE_PERIPHERAL;
712 			usb_otg_ss2_glue.vbus_id_status = OMAP_DWC3_VBUS_VALID;
713 			ti_usb_phy_uboot_init(&usb_phy2_device);
714 			dwc3_omap_uboot_init(&usb_otg_ss2_glue);
715 			dwc3_uboot_init(&usb_otg_ss2);
716 		}
717 		break;
718 	default:
719 		printf("Invalid Controller Index\n");
720 	}
721 #endif
722 
723 	return 0;
724 }
725 
726 int board_usb_cleanup(int index, enum usb_init_type init)
727 {
728 #ifdef CONFIG_USB_DWC3
729 	switch (index) {
730 	case 0:
731 	case 1:
732 		if (init == USB_INIT_DEVICE) {
733 			ti_usb_phy_uboot_exit(index);
734 			dwc3_uboot_exit(index);
735 			dwc3_omap_uboot_exit(index);
736 		}
737 		break;
738 	default:
739 		printf("Invalid Controller Index\n");
740 	}
741 #endif
742 	disable_usb_clocks(index);
743 
744 	return 0;
745 }
746 #endif /* defined(CONFIG_USB_DWC3) || defined(CONFIG_USB_XHCI_OMAP) */
747 
748 #ifdef CONFIG_DRIVER_TI_CPSW
749 
750 static void cpsw_control(int enabled)
751 {
752 	/* Additional controls can be added here */
753 	return;
754 }
755 
756 static struct cpsw_slave_data cpsw_slaves[] = {
757 	{
758 		.slave_reg_ofs	= 0x208,
759 		.sliver_reg_ofs	= 0xd80,
760 		.phy_addr	= 16,
761 	},
762 	{
763 		.slave_reg_ofs	= 0x308,
764 		.sliver_reg_ofs	= 0xdc0,
765 		.phy_addr	= 1,
766 	},
767 };
768 
769 static struct cpsw_platform_data cpsw_data = {
770 	.mdio_base		= CPSW_MDIO_BASE,
771 	.cpsw_base		= CPSW_BASE,
772 	.mdio_div		= 0xff,
773 	.channels		= 8,
774 	.cpdma_reg_ofs		= 0x800,
775 	.slaves			= 1,
776 	.slave_data		= cpsw_slaves,
777 	.ale_reg_ofs		= 0xd00,
778 	.ale_entries		= 1024,
779 	.host_port_reg_ofs	= 0x108,
780 	.hw_stats_reg_ofs	= 0x900,
781 	.bd_ram_ofs		= 0x2000,
782 	.mac_control		= (1 << 5),
783 	.control		= cpsw_control,
784 	.host_port_num		= 0,
785 	.version		= CPSW_CTRL_VERSION_2,
786 };
787 
788 int board_eth_init(bd_t *bis)
789 {
790 	int rv;
791 	uint8_t mac_addr[6];
792 	uint32_t mac_hi, mac_lo;
793 
794 	/* try reading mac address from efuse */
795 	mac_lo = readl(&cdev->macid0l);
796 	mac_hi = readl(&cdev->macid0h);
797 	mac_addr[0] = mac_hi & 0xFF;
798 	mac_addr[1] = (mac_hi & 0xFF00) >> 8;
799 	mac_addr[2] = (mac_hi & 0xFF0000) >> 16;
800 	mac_addr[3] = (mac_hi & 0xFF000000) >> 24;
801 	mac_addr[4] = mac_lo & 0xFF;
802 	mac_addr[5] = (mac_lo & 0xFF00) >> 8;
803 
804 	if (!getenv("ethaddr")) {
805 		puts("<ethaddr> not set. Validating first E-fuse MAC\n");
806 		if (is_valid_ethaddr(mac_addr))
807 			eth_setenv_enetaddr("ethaddr", mac_addr);
808 	}
809 
810 	mac_lo = readl(&cdev->macid1l);
811 	mac_hi = readl(&cdev->macid1h);
812 	mac_addr[0] = mac_hi & 0xFF;
813 	mac_addr[1] = (mac_hi & 0xFF00) >> 8;
814 	mac_addr[2] = (mac_hi & 0xFF0000) >> 16;
815 	mac_addr[3] = (mac_hi & 0xFF000000) >> 24;
816 	mac_addr[4] = mac_lo & 0xFF;
817 	mac_addr[5] = (mac_lo & 0xFF00) >> 8;
818 
819 	if (!getenv("eth1addr")) {
820 		if (is_valid_ethaddr(mac_addr))
821 			eth_setenv_enetaddr("eth1addr", mac_addr);
822 	}
823 
824 	if (board_is_eposevm()) {
825 		writel(RMII_MODE_ENABLE | RMII_CHIPCKL_ENABLE, &cdev->miisel);
826 		cpsw_slaves[0].phy_if = PHY_INTERFACE_MODE_RMII;
827 		cpsw_slaves[0].phy_addr = 16;
828 	} else if (board_is_sk()) {
829 		writel(RGMII_MODE_ENABLE, &cdev->miisel);
830 		cpsw_slaves[0].phy_if = PHY_INTERFACE_MODE_RGMII;
831 		cpsw_slaves[0].phy_addr = 4;
832 		cpsw_slaves[1].phy_addr = 5;
833 	} else if (board_is_idk()) {
834 		writel(RGMII_MODE_ENABLE, &cdev->miisel);
835 		cpsw_slaves[0].phy_if = PHY_INTERFACE_MODE_RGMII;
836 		cpsw_slaves[0].phy_addr = 0;
837 	} else {
838 		writel(RGMII_MODE_ENABLE, &cdev->miisel);
839 		cpsw_slaves[0].phy_if = PHY_INTERFACE_MODE_RGMII;
840 		cpsw_slaves[0].phy_addr = 0;
841 	}
842 
843 	rv = cpsw_register(&cpsw_data);
844 	if (rv < 0)
845 		printf("Error %d registering CPSW switch\n", rv);
846 
847 	return rv;
848 }
849 #endif
850 
851 #ifdef CONFIG_SPL_LOAD_FIT
852 int board_fit_config_name_match(const char *name)
853 {
854 	if (board_is_evm() && !strcmp(name, "am437x-gp-evm"))
855 		return 0;
856 	else if (board_is_sk() && !strcmp(name, "am437x-sk-evm"))
857 		return 0;
858 	else if (board_is_eposevm() && !strcmp(name, "am43x-epos-evm"))
859 		return 0;
860 	else if (board_is_idk() && !strcmp(name, "am437x-idk-evm"))
861 		return 0;
862 	else
863 		return -1;
864 }
865 #endif
866 
867 #ifdef CONFIG_TI_SECURE_DEVICE
868 void board_fit_image_post_process(void **p_image, size_t *p_size)
869 {
870 	secure_boot_verify_image(p_image, p_size);
871 }
872 #endif
873