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1 | /* | |
2 | * board.c | |
3 | * | |
4 | * Board functions for TI AM335X based boards | |
5 | * | |
6 | * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/ | |
7 | * | |
8 | * SPDX-License-Identifier: GPL-2.0+ | |
9 | */ | |
10 | ||
11 | #include <common.h> | |
12 | #include <errno.h> | |
13 | #include <spl.h> | |
14 | #include <asm/arch/cpu.h> | |
15 | #include <asm/arch/hardware.h> | |
16 | #include <asm/arch/omap.h> | |
17 | #include <asm/arch/ddr_defs.h> | |
18 | #include <asm/arch/clock.h> | |
19 | #include <asm/arch/gpio.h> | |
20 | #include <asm/arch/mmc_host_def.h> | |
21 | #include <asm/arch/sys_proto.h> | |
22 | #include <asm/arch/mem.h> | |
23 | #include <asm/io.h> | |
24 | #include <asm/emif.h> | |
25 | #include <asm/gpio.h> | |
26 | #include <i2c.h> | |
27 | #include <miiphy.h> | |
28 | #include <cpsw.h> | |
29 | #include <power/tps65217.h> | |
30 | #include <power/tps65910.h> | |
31 | #include <environment.h> | |
32 | #include <watchdog.h> | |
33 | #include <environment.h> | |
34 | #include "board.h" | |
35 | ||
36 | DECLARE_GLOBAL_DATA_PTR; | |
37 | ||
38 | /* GPIO that controls power to DDR on EVM-SK */ | |
39 | #define GPIO_DDR_VTT_EN 7 | |
40 | ||
41 | static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE; | |
42 | ||
43 | /* | |
44 | * Read header information from EEPROM into global structure. | |
45 | */ | |
46 | static int read_eeprom(struct am335x_baseboard_id *header) | |
47 | { | |
48 | /* Check if baseboard eeprom is available */ | |
49 | if (i2c_probe(CONFIG_SYS_I2C_EEPROM_ADDR)) { | |
50 | puts("Could not probe the EEPROM; something fundamentally " | |
51 | "wrong on the I2C bus.\n"); | |
52 | return -ENODEV; | |
53 | } | |
54 | ||
55 | /* read the eeprom using i2c */ | |
56 | if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 2, (uchar *)header, | |
57 | sizeof(struct am335x_baseboard_id))) { | |
58 | puts("Could not read the EEPROM; something fundamentally" | |
59 | " wrong on the I2C bus.\n"); | |
60 | return -EIO; | |
61 | } | |
62 | ||
63 | if (header->magic != 0xEE3355AA) { | |
64 | /* | |
65 | * read the eeprom using i2c again, | |
66 | * but use only a 1 byte address | |
67 | */ | |
68 | if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 1, (uchar *)header, | |
69 | sizeof(struct am335x_baseboard_id))) { | |
70 | puts("Could not read the EEPROM; something " | |
71 | "fundamentally wrong on the I2C bus.\n"); | |
72 | return -EIO; | |
73 | } | |
74 | ||
75 | if (header->magic != 0xEE3355AA) { | |
76 | printf("Incorrect magic number (0x%x) in EEPROM\n", | |
77 | header->magic); | |
78 | return -EINVAL; | |
79 | } | |
80 | } | |
81 | ||
82 | return 0; | |
83 | } | |
84 | ||
85 | #ifndef CONFIG_SKIP_LOWLEVEL_INIT | |
86 | static const struct ddr_data ddr2_data = { | |
87 | .datardsratio0 = ((MT47H128M16RT25E_RD_DQS<<30) | | |
88 | (MT47H128M16RT25E_RD_DQS<<20) | | |
89 | (MT47H128M16RT25E_RD_DQS<<10) | | |
90 | (MT47H128M16RT25E_RD_DQS<<0)), | |
91 | .datawdsratio0 = ((MT47H128M16RT25E_WR_DQS<<30) | | |
92 | (MT47H128M16RT25E_WR_DQS<<20) | | |
93 | (MT47H128M16RT25E_WR_DQS<<10) | | |
94 | (MT47H128M16RT25E_WR_DQS<<0)), | |
95 | .datawiratio0 = ((MT47H128M16RT25E_PHY_WRLVL<<30) | | |
96 | (MT47H128M16RT25E_PHY_WRLVL<<20) | | |
97 | (MT47H128M16RT25E_PHY_WRLVL<<10) | | |
98 | (MT47H128M16RT25E_PHY_WRLVL<<0)), | |
99 | .datagiratio0 = ((MT47H128M16RT25E_PHY_GATELVL<<30) | | |
100 | (MT47H128M16RT25E_PHY_GATELVL<<20) | | |
101 | (MT47H128M16RT25E_PHY_GATELVL<<10) | | |
102 | (MT47H128M16RT25E_PHY_GATELVL<<0)), | |
103 | .datafwsratio0 = ((MT47H128M16RT25E_PHY_FIFO_WE<<30) | | |
104 | (MT47H128M16RT25E_PHY_FIFO_WE<<20) | | |
105 | (MT47H128M16RT25E_PHY_FIFO_WE<<10) | | |
106 | (MT47H128M16RT25E_PHY_FIFO_WE<<0)), | |
107 | .datawrsratio0 = ((MT47H128M16RT25E_PHY_WR_DATA<<30) | | |
108 | (MT47H128M16RT25E_PHY_WR_DATA<<20) | | |
109 | (MT47H128M16RT25E_PHY_WR_DATA<<10) | | |
110 | (MT47H128M16RT25E_PHY_WR_DATA<<0)), | |
111 | }; | |
112 | ||
113 | static const struct cmd_control ddr2_cmd_ctrl_data = { | |
114 | .cmd0csratio = MT47H128M16RT25E_RATIO, | |
115 | .cmd0iclkout = MT47H128M16RT25E_INVERT_CLKOUT, | |
116 | ||
117 | .cmd1csratio = MT47H128M16RT25E_RATIO, | |
118 | .cmd1iclkout = MT47H128M16RT25E_INVERT_CLKOUT, | |
119 | ||
120 | .cmd2csratio = MT47H128M16RT25E_RATIO, | |
121 | .cmd2iclkout = MT47H128M16RT25E_INVERT_CLKOUT, | |
122 | }; | |
123 | ||
124 | static const struct emif_regs ddr2_emif_reg_data = { | |
125 | .sdram_config = MT47H128M16RT25E_EMIF_SDCFG, | |
126 | .ref_ctrl = MT47H128M16RT25E_EMIF_SDREF, | |
127 | .sdram_tim1 = MT47H128M16RT25E_EMIF_TIM1, | |
128 | .sdram_tim2 = MT47H128M16RT25E_EMIF_TIM2, | |
129 | .sdram_tim3 = MT47H128M16RT25E_EMIF_TIM3, | |
130 | .emif_ddr_phy_ctlr_1 = MT47H128M16RT25E_EMIF_READ_LATENCY, | |
131 | }; | |
132 | ||
133 | static const struct ddr_data ddr3_data = { | |
134 | .datardsratio0 = MT41J128MJT125_RD_DQS, | |
135 | .datawdsratio0 = MT41J128MJT125_WR_DQS, | |
136 | .datafwsratio0 = MT41J128MJT125_PHY_FIFO_WE, | |
137 | .datawrsratio0 = MT41J128MJT125_PHY_WR_DATA, | |
138 | }; | |
139 | ||
140 | static const struct ddr_data ddr3_beagleblack_data = { | |
141 | .datardsratio0 = MT41K256M16HA125E_RD_DQS, | |
142 | .datawdsratio0 = MT41K256M16HA125E_WR_DQS, | |
143 | .datafwsratio0 = MT41K256M16HA125E_PHY_FIFO_WE, | |
144 | .datawrsratio0 = MT41K256M16HA125E_PHY_WR_DATA, | |
145 | }; | |
146 | ||
147 | static const struct ddr_data ddr3_evm_data = { | |
148 | .datardsratio0 = MT41J512M8RH125_RD_DQS, | |
149 | .datawdsratio0 = MT41J512M8RH125_WR_DQS, | |
150 | .datafwsratio0 = MT41J512M8RH125_PHY_FIFO_WE, | |
151 | .datawrsratio0 = MT41J512M8RH125_PHY_WR_DATA, | |
152 | }; | |
153 | ||
154 | static const struct cmd_control ddr3_cmd_ctrl_data = { | |
155 | .cmd0csratio = MT41J128MJT125_RATIO, | |
156 | .cmd0iclkout = MT41J128MJT125_INVERT_CLKOUT, | |
157 | ||
158 | .cmd1csratio = MT41J128MJT125_RATIO, | |
159 | .cmd1iclkout = MT41J128MJT125_INVERT_CLKOUT, | |
160 | ||
161 | .cmd2csratio = MT41J128MJT125_RATIO, | |
162 | .cmd2iclkout = MT41J128MJT125_INVERT_CLKOUT, | |
163 | }; | |
164 | ||
165 | static const struct cmd_control ddr3_beagleblack_cmd_ctrl_data = { | |
166 | .cmd0csratio = MT41K256M16HA125E_RATIO, | |
167 | .cmd0iclkout = MT41K256M16HA125E_INVERT_CLKOUT, | |
168 | ||
169 | .cmd1csratio = MT41K256M16HA125E_RATIO, | |
170 | .cmd1iclkout = MT41K256M16HA125E_INVERT_CLKOUT, | |
171 | ||
172 | .cmd2csratio = MT41K256M16HA125E_RATIO, | |
173 | .cmd2iclkout = MT41K256M16HA125E_INVERT_CLKOUT, | |
174 | }; | |
175 | ||
176 | static const struct cmd_control ddr3_evm_cmd_ctrl_data = { | |
177 | .cmd0csratio = MT41J512M8RH125_RATIO, | |
178 | .cmd0iclkout = MT41J512M8RH125_INVERT_CLKOUT, | |
179 | ||
180 | .cmd1csratio = MT41J512M8RH125_RATIO, | |
181 | .cmd1iclkout = MT41J512M8RH125_INVERT_CLKOUT, | |
182 | ||
183 | .cmd2csratio = MT41J512M8RH125_RATIO, | |
184 | .cmd2iclkout = MT41J512M8RH125_INVERT_CLKOUT, | |
185 | }; | |
186 | ||
187 | static struct emif_regs ddr3_emif_reg_data = { | |
188 | .sdram_config = MT41J128MJT125_EMIF_SDCFG, | |
189 | .ref_ctrl = MT41J128MJT125_EMIF_SDREF, | |
190 | .sdram_tim1 = MT41J128MJT125_EMIF_TIM1, | |
191 | .sdram_tim2 = MT41J128MJT125_EMIF_TIM2, | |
192 | .sdram_tim3 = MT41J128MJT125_EMIF_TIM3, | |
193 | .zq_config = MT41J128MJT125_ZQ_CFG, | |
194 | .emif_ddr_phy_ctlr_1 = MT41J128MJT125_EMIF_READ_LATENCY | | |
195 | PHY_EN_DYN_PWRDN, | |
196 | }; | |
197 | ||
198 | static struct emif_regs ddr3_beagleblack_emif_reg_data = { | |
199 | .sdram_config = MT41K256M16HA125E_EMIF_SDCFG, | |
200 | .ref_ctrl = MT41K256M16HA125E_EMIF_SDREF, | |
201 | .sdram_tim1 = MT41K256M16HA125E_EMIF_TIM1, | |
202 | .sdram_tim2 = MT41K256M16HA125E_EMIF_TIM2, | |
203 | .sdram_tim3 = MT41K256M16HA125E_EMIF_TIM3, | |
204 | .zq_config = MT41K256M16HA125E_ZQ_CFG, | |
205 | .emif_ddr_phy_ctlr_1 = MT41K256M16HA125E_EMIF_READ_LATENCY, | |
206 | }; | |
207 | ||
208 | static struct emif_regs ddr3_evm_emif_reg_data = { | |
209 | .sdram_config = MT41J512M8RH125_EMIF_SDCFG, | |
210 | .ref_ctrl = MT41J512M8RH125_EMIF_SDREF, | |
211 | .sdram_tim1 = MT41J512M8RH125_EMIF_TIM1, | |
212 | .sdram_tim2 = MT41J512M8RH125_EMIF_TIM2, | |
213 | .sdram_tim3 = MT41J512M8RH125_EMIF_TIM3, | |
214 | .zq_config = MT41J512M8RH125_ZQ_CFG, | |
215 | .emif_ddr_phy_ctlr_1 = MT41J512M8RH125_EMIF_READ_LATENCY | | |
216 | PHY_EN_DYN_PWRDN, | |
217 | }; | |
218 | ||
219 | #ifdef CONFIG_SPL_OS_BOOT | |
220 | int spl_start_uboot(void) | |
221 | { | |
222 | /* break into full u-boot on 'c' */ | |
223 | if (serial_tstc() && serial_getc() == 'c') | |
224 | return 1; | |
225 | ||
226 | #ifdef CONFIG_SPL_ENV_SUPPORT | |
227 | env_init(); | |
228 | env_relocate_spec(); | |
229 | if (getenv_yesno("boot_os") != 1) | |
230 | return 1; | |
231 | #endif | |
232 | ||
233 | return 0; | |
234 | } | |
235 | #endif | |
236 | ||
237 | #define OSC (V_OSCK/1000000) | |
238 | const struct dpll_params dpll_ddr = { | |
239 | 266, OSC-1, 1, -1, -1, -1, -1}; | |
240 | const struct dpll_params dpll_ddr_evm_sk = { | |
241 | 303, OSC-1, 1, -1, -1, -1, -1}; | |
242 | const struct dpll_params dpll_ddr_bone_black = { | |
243 | 400, OSC-1, 1, -1, -1, -1, -1}; | |
244 | ||
245 | void am33xx_spl_board_init(void) | |
246 | { | |
247 | struct am335x_baseboard_id header; | |
248 | int mpu_vdd; | |
249 | ||
250 | if (read_eeprom(&header) < 0) | |
251 | puts("Could not get board ID.\n"); | |
252 | ||
253 | /* Get the frequency */ | |
254 | dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev); | |
255 | ||
256 | if (board_is_bone(&header) || board_is_bone_lt(&header)) { | |
257 | /* BeagleBone PMIC Code */ | |
258 | int usb_cur_lim; | |
259 | ||
260 | /* | |
261 | * Only perform PMIC configurations if board rev > A1 | |
262 | * on Beaglebone White | |
263 | */ | |
264 | if (board_is_bone(&header) && !strncmp(header.version, | |
265 | "00A1", 4)) | |
266 | return; | |
267 | ||
268 | if (i2c_probe(TPS65217_CHIP_PM)) | |
269 | return; | |
270 | ||
271 | /* | |
272 | * On Beaglebone White we need to ensure we have AC power | |
273 | * before increasing the frequency. | |
274 | */ | |
275 | if (board_is_bone(&header)) { | |
276 | uchar pmic_status_reg; | |
277 | if (tps65217_reg_read(TPS65217_STATUS, | |
278 | &pmic_status_reg)) | |
279 | return; | |
280 | if (!(pmic_status_reg & TPS65217_PWR_SRC_AC_BITMASK)) { | |
281 | puts("No AC power, disabling frequency switch\n"); | |
282 | return; | |
283 | } | |
284 | } | |
285 | ||
286 | /* | |
287 | * Override what we have detected since we know if we have | |
288 | * a Beaglebone Black it supports 1GHz. | |
289 | */ | |
290 | if (board_is_bone_lt(&header)) | |
291 | dpll_mpu_opp100.m = MPUPLL_M_1000; | |
292 | ||
293 | /* | |
294 | * Increase USB current limit to 1300mA or 1800mA and set | |
295 | * the MPU voltage controller as needed. | |
296 | */ | |
297 | if (dpll_mpu_opp100.m == MPUPLL_M_1000) { | |
298 | usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1800MA; | |
299 | mpu_vdd = TPS65217_DCDC_VOLT_SEL_1325MV; | |
300 | } else { | |
301 | usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1300MA; | |
302 | mpu_vdd = TPS65217_DCDC_VOLT_SEL_1275MV; | |
303 | } | |
304 | ||
305 | if (tps65217_reg_write(TPS65217_PROT_LEVEL_NONE, | |
306 | TPS65217_POWER_PATH, | |
307 | usb_cur_lim, | |
308 | TPS65217_USB_INPUT_CUR_LIMIT_MASK)) | |
309 | puts("tps65217_reg_write failure\n"); | |
310 | ||
311 | /* Set DCDC3 (CORE) voltage to 1.125V */ | |
312 | if (tps65217_voltage_update(TPS65217_DEFDCDC3, | |
313 | TPS65217_DCDC_VOLT_SEL_1125MV)) { | |
314 | puts("tps65217_voltage_update failure\n"); | |
315 | return; | |
316 | } | |
317 | ||
318 | /* Set CORE Frequencies to OPP100 */ | |
319 | do_setup_dpll(&dpll_core_regs, &dpll_core_opp100); | |
320 | ||
321 | /* Set DCDC2 (MPU) voltage */ | |
322 | if (tps65217_voltage_update(TPS65217_DEFDCDC2, mpu_vdd)) { | |
323 | puts("tps65217_voltage_update failure\n"); | |
324 | return; | |
325 | } | |
326 | ||
327 | /* | |
328 | * Set LDO3, LDO4 output voltage to 3.3V for Beaglebone. | |
329 | * Set LDO3 to 1.8V and LDO4 to 3.3V for Beaglebone Black. | |
330 | */ | |
331 | if (board_is_bone(&header)) { | |
332 | if (tps65217_reg_write(TPS65217_PROT_LEVEL_2, | |
333 | TPS65217_DEFLS1, | |
334 | TPS65217_LDO_VOLTAGE_OUT_3_3, | |
335 | TPS65217_LDO_MASK)) | |
336 | puts("tps65217_reg_write failure\n"); | |
337 | } else { | |
338 | if (tps65217_reg_write(TPS65217_PROT_LEVEL_2, | |
339 | TPS65217_DEFLS1, | |
340 | TPS65217_LDO_VOLTAGE_OUT_1_8, | |
341 | TPS65217_LDO_MASK)) | |
342 | puts("tps65217_reg_write failure\n"); | |
343 | } | |
344 | ||
345 | if (tps65217_reg_write(TPS65217_PROT_LEVEL_2, | |
346 | TPS65217_DEFLS2, | |
347 | TPS65217_LDO_VOLTAGE_OUT_3_3, | |
348 | TPS65217_LDO_MASK)) | |
349 | puts("tps65217_reg_write failure\n"); | |
350 | } else { | |
351 | int sil_rev; | |
352 | ||
353 | /* | |
354 | * The GP EVM, IDK and EVM SK use a TPS65910 PMIC. For all | |
355 | * MPU frequencies we support we use a CORE voltage of | |
356 | * 1.1375V. For MPU voltage we need to switch based on | |
357 | * the frequency we are running at. | |
358 | */ | |
359 | if (i2c_probe(TPS65910_CTRL_I2C_ADDR)) | |
360 | return; | |
361 | ||
362 | /* | |
363 | * Depending on MPU clock and PG we will need a different | |
364 | * VDD to drive at that speed. | |
365 | */ | |
366 | sil_rev = readl(&cdev->deviceid) >> 28; | |
367 | mpu_vdd = am335x_get_tps65910_mpu_vdd(sil_rev, | |
368 | dpll_mpu_opp100.m); | |
369 | ||
370 | /* Tell the TPS65910 to use i2c */ | |
371 | tps65910_set_i2c_control(); | |
372 | ||
373 | /* First update MPU voltage. */ | |
374 | if (tps65910_voltage_update(MPU, mpu_vdd)) | |
375 | return; | |
376 | ||
377 | /* Second, update the CORE voltage. */ | |
378 | if (tps65910_voltage_update(CORE, TPS65910_OP_REG_SEL_1_1_3)) | |
379 | return; | |
380 | ||
381 | /* Set CORE Frequencies to OPP100 */ | |
382 | do_setup_dpll(&dpll_core_regs, &dpll_core_opp100); | |
383 | } | |
384 | ||
385 | /* Set MPU Frequency to what we detected now that voltages are set */ | |
386 | do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100); | |
387 | } | |
388 | ||
389 | const struct dpll_params *get_dpll_ddr_params(void) | |
390 | { | |
391 | struct am335x_baseboard_id header; | |
392 | ||
393 | enable_i2c0_pin_mux(); | |
394 | i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, CONFIG_SYS_OMAP24_I2C_SLAVE); | |
395 | if (read_eeprom(&header) < 0) | |
396 | puts("Could not get board ID.\n"); | |
397 | ||
398 | if (board_is_evm_sk(&header)) | |
399 | return &dpll_ddr_evm_sk; | |
400 | else if (board_is_bone_lt(&header)) | |
401 | return &dpll_ddr_bone_black; | |
402 | else if (board_is_evm_15_or_later(&header)) | |
403 | return &dpll_ddr_evm_sk; | |
404 | else | |
405 | return &dpll_ddr; | |
406 | } | |
407 | ||
408 | void set_uart_mux_conf(void) | |
409 | { | |
410 | #ifdef CONFIG_SERIAL1 | |
411 | enable_uart0_pin_mux(); | |
412 | #endif /* CONFIG_SERIAL1 */ | |
413 | #ifdef CONFIG_SERIAL2 | |
414 | enable_uart1_pin_mux(); | |
415 | #endif /* CONFIG_SERIAL2 */ | |
416 | #ifdef CONFIG_SERIAL3 | |
417 | enable_uart2_pin_mux(); | |
418 | #endif /* CONFIG_SERIAL3 */ | |
419 | #ifdef CONFIG_SERIAL4 | |
420 | enable_uart3_pin_mux(); | |
421 | #endif /* CONFIG_SERIAL4 */ | |
422 | #ifdef CONFIG_SERIAL5 | |
423 | enable_uart4_pin_mux(); | |
424 | #endif /* CONFIG_SERIAL5 */ | |
425 | #ifdef CONFIG_SERIAL6 | |
426 | enable_uart5_pin_mux(); | |
427 | #endif /* CONFIG_SERIAL6 */ | |
428 | } | |
429 | ||
430 | void set_mux_conf_regs(void) | |
431 | { | |
432 | __maybe_unused struct am335x_baseboard_id header; | |
433 | ||
434 | if (read_eeprom(&header) < 0) | |
435 | puts("Could not get board ID.\n"); | |
436 | ||
437 | enable_board_pin_mux(&header); | |
438 | } | |
439 | ||
440 | const struct ctrl_ioregs ioregs_evmsk = { | |
441 | .cm0ioctl = MT41J128MJT125_IOCTRL_VALUE, | |
442 | .cm1ioctl = MT41J128MJT125_IOCTRL_VALUE, | |
443 | .cm2ioctl = MT41J128MJT125_IOCTRL_VALUE, | |
444 | .dt0ioctl = MT41J128MJT125_IOCTRL_VALUE, | |
445 | .dt1ioctl = MT41J128MJT125_IOCTRL_VALUE, | |
446 | }; | |
447 | ||
448 | const struct ctrl_ioregs ioregs_bonelt = { | |
449 | .cm0ioctl = MT41K256M16HA125E_IOCTRL_VALUE, | |
450 | .cm1ioctl = MT41K256M16HA125E_IOCTRL_VALUE, | |
451 | .cm2ioctl = MT41K256M16HA125E_IOCTRL_VALUE, | |
452 | .dt0ioctl = MT41K256M16HA125E_IOCTRL_VALUE, | |
453 | .dt1ioctl = MT41K256M16HA125E_IOCTRL_VALUE, | |
454 | }; | |
455 | ||
456 | const struct ctrl_ioregs ioregs_evm15 = { | |
457 | .cm0ioctl = MT41J512M8RH125_IOCTRL_VALUE, | |
458 | .cm1ioctl = MT41J512M8RH125_IOCTRL_VALUE, | |
459 | .cm2ioctl = MT41J512M8RH125_IOCTRL_VALUE, | |
460 | .dt0ioctl = MT41J512M8RH125_IOCTRL_VALUE, | |
461 | .dt1ioctl = MT41J512M8RH125_IOCTRL_VALUE, | |
462 | }; | |
463 | ||
464 | const struct ctrl_ioregs ioregs = { | |
465 | .cm0ioctl = MT47H128M16RT25E_IOCTRL_VALUE, | |
466 | .cm1ioctl = MT47H128M16RT25E_IOCTRL_VALUE, | |
467 | .cm2ioctl = MT47H128M16RT25E_IOCTRL_VALUE, | |
468 | .dt0ioctl = MT47H128M16RT25E_IOCTRL_VALUE, | |
469 | .dt1ioctl = MT47H128M16RT25E_IOCTRL_VALUE, | |
470 | }; | |
471 | ||
472 | void sdram_init(void) | |
473 | { | |
474 | __maybe_unused struct am335x_baseboard_id header; | |
475 | ||
476 | if (read_eeprom(&header) < 0) | |
477 | puts("Could not get board ID.\n"); | |
478 | ||
479 | if (board_is_evm_sk(&header)) { | |
480 | /* | |
481 | * EVM SK 1.2A and later use gpio0_7 to enable DDR3. | |
482 | * This is safe enough to do on older revs. | |
483 | */ | |
484 | gpio_request(GPIO_DDR_VTT_EN, "ddr_vtt_en"); | |
485 | gpio_direction_output(GPIO_DDR_VTT_EN, 1); | |
486 | } | |
487 | ||
488 | if (board_is_evm_sk(&header)) | |
489 | config_ddr(303, &ioregs_evmsk, &ddr3_data, | |
490 | &ddr3_cmd_ctrl_data, &ddr3_emif_reg_data, 0); | |
491 | else if (board_is_bone_lt(&header)) | |
492 | config_ddr(400, &ioregs_bonelt, | |
493 | &ddr3_beagleblack_data, | |
494 | &ddr3_beagleblack_cmd_ctrl_data, | |
495 | &ddr3_beagleblack_emif_reg_data, 0); | |
496 | else if (board_is_evm_15_or_later(&header)) | |
497 | config_ddr(303, &ioregs_evm15, &ddr3_evm_data, | |
498 | &ddr3_evm_cmd_ctrl_data, &ddr3_evm_emif_reg_data, 0); | |
499 | else | |
500 | config_ddr(266, &ioregs, &ddr2_data, | |
501 | &ddr2_cmd_ctrl_data, &ddr2_emif_reg_data, 0); | |
502 | } | |
503 | #endif | |
504 | ||
505 | /* | |
506 | * Basic board specific setup. Pinmux has been handled already. | |
507 | */ | |
508 | int board_init(void) | |
509 | { | |
510 | #if defined(CONFIG_HW_WATCHDOG) | |
511 | hw_watchdog_init(); | |
512 | #endif | |
513 | ||
514 | gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; | |
515 | #if defined(CONFIG_NOR) || defined(CONFIG_NAND) | |
516 | gpmc_init(); | |
517 | #endif | |
518 | return 0; | |
519 | } | |
520 | ||
521 | #ifdef CONFIG_BOARD_LATE_INIT | |
522 | int board_late_init(void) | |
523 | { | |
524 | #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG | |
525 | char safe_string[HDR_NAME_LEN + 1]; | |
526 | struct am335x_baseboard_id header; | |
527 | ||
528 | if (read_eeprom(&header) < 0) | |
529 | puts("Could not get board ID.\n"); | |
530 | ||
531 | /* Now set variables based on the header. */ | |
532 | strncpy(safe_string, (char *)header.name, sizeof(header.name)); | |
533 | safe_string[sizeof(header.name)] = 0; | |
534 | setenv("board_name", safe_string); | |
535 | ||
536 | strncpy(safe_string, (char *)header.version, sizeof(header.version)); | |
537 | safe_string[sizeof(header.version)] = 0; | |
538 | setenv("board_rev", safe_string); | |
539 | #endif | |
540 | ||
541 | return 0; | |
542 | } | |
543 | #endif | |
544 | ||
545 | #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \ | |
546 | (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD)) | |
547 | static void cpsw_control(int enabled) | |
548 | { | |
549 | /* VTP can be added here */ | |
550 | ||
551 | return; | |
552 | } | |
553 | ||
554 | static struct cpsw_slave_data cpsw_slaves[] = { | |
555 | { | |
556 | .slave_reg_ofs = 0x208, | |
557 | .sliver_reg_ofs = 0xd80, | |
558 | .phy_addr = 0, | |
559 | }, | |
560 | { | |
561 | .slave_reg_ofs = 0x308, | |
562 | .sliver_reg_ofs = 0xdc0, | |
563 | .phy_addr = 1, | |
564 | }, | |
565 | }; | |
566 | ||
567 | static struct cpsw_platform_data cpsw_data = { | |
568 | .mdio_base = CPSW_MDIO_BASE, | |
569 | .cpsw_base = CPSW_BASE, | |
570 | .mdio_div = 0xff, | |
571 | .channels = 8, | |
572 | .cpdma_reg_ofs = 0x800, | |
573 | .slaves = 1, | |
574 | .slave_data = cpsw_slaves, | |
575 | .ale_reg_ofs = 0xd00, | |
576 | .ale_entries = 1024, | |
577 | .host_port_reg_ofs = 0x108, | |
578 | .hw_stats_reg_ofs = 0x900, | |
579 | .bd_ram_ofs = 0x2000, | |
580 | .mac_control = (1 << 5), | |
581 | .control = cpsw_control, | |
582 | .host_port_num = 0, | |
583 | .version = CPSW_CTRL_VERSION_2, | |
584 | }; | |
585 | #endif | |
586 | ||
587 | /* | |
588 | * This function will: | |
589 | * Read the eFuse for MAC addresses, and set ethaddr/eth1addr/usbnet_devaddr | |
590 | * in the environment | |
591 | * Perform fixups to the PHY present on certain boards. We only need this | |
592 | * function in: | |
593 | * - SPL with either CPSW or USB ethernet support | |
594 | * - Full U-Boot, with either CPSW or USB ethernet | |
595 | * Build in only these cases to avoid warnings about unused variables | |
596 | * when we build an SPL that has neither option but full U-Boot will. | |
597 | */ | |
598 | #if ((defined(CONFIG_SPL_ETH_SUPPORT) || defined(CONFIG_SPL_USBETH_SUPPORT)) \ | |
599 | && defined(CONFIG_SPL_BUILD)) || \ | |
600 | ((defined(CONFIG_DRIVER_TI_CPSW) || \ | |
601 | defined(CONFIG_USB_ETHER) && defined(CONFIG_MUSB_GADGET)) && \ | |
602 | !defined(CONFIG_SPL_BUILD)) | |
603 | int board_eth_init(bd_t *bis) | |
604 | { | |
605 | int rv, n = 0; | |
606 | uint8_t mac_addr[6]; | |
607 | uint32_t mac_hi, mac_lo; | |
608 | __maybe_unused struct am335x_baseboard_id header; | |
609 | ||
610 | /* try reading mac address from efuse */ | |
611 | mac_lo = readl(&cdev->macid0l); | |
612 | mac_hi = readl(&cdev->macid0h); | |
613 | mac_addr[0] = mac_hi & 0xFF; | |
614 | mac_addr[1] = (mac_hi & 0xFF00) >> 8; | |
615 | mac_addr[2] = (mac_hi & 0xFF0000) >> 16; | |
616 | mac_addr[3] = (mac_hi & 0xFF000000) >> 24; | |
617 | mac_addr[4] = mac_lo & 0xFF; | |
618 | mac_addr[5] = (mac_lo & 0xFF00) >> 8; | |
619 | ||
620 | #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \ | |
621 | (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD)) | |
622 | if (!getenv("ethaddr")) { | |
623 | printf("<ethaddr> not set. Validating first E-fuse MAC\n"); | |
624 | ||
625 | if (is_valid_ether_addr(mac_addr)) | |
626 | eth_setenv_enetaddr("ethaddr", mac_addr); | |
627 | } | |
628 | ||
629 | #ifdef CONFIG_DRIVER_TI_CPSW | |
630 | ||
631 | mac_lo = readl(&cdev->macid1l); | |
632 | mac_hi = readl(&cdev->macid1h); | |
633 | mac_addr[0] = mac_hi & 0xFF; | |
634 | mac_addr[1] = (mac_hi & 0xFF00) >> 8; | |
635 | mac_addr[2] = (mac_hi & 0xFF0000) >> 16; | |
636 | mac_addr[3] = (mac_hi & 0xFF000000) >> 24; | |
637 | mac_addr[4] = mac_lo & 0xFF; | |
638 | mac_addr[5] = (mac_lo & 0xFF00) >> 8; | |
639 | ||
640 | if (!getenv("eth1addr")) { | |
641 | if (is_valid_ether_addr(mac_addr)) | |
642 | eth_setenv_enetaddr("eth1addr", mac_addr); | |
643 | } | |
644 | ||
645 | if (read_eeprom(&header) < 0) | |
646 | puts("Could not get board ID.\n"); | |
647 | ||
648 | if (board_is_bone(&header) || board_is_bone_lt(&header) || | |
649 | board_is_idk(&header)) { | |
650 | writel(MII_MODE_ENABLE, &cdev->miisel); | |
651 | cpsw_slaves[0].phy_if = cpsw_slaves[1].phy_if = | |
652 | PHY_INTERFACE_MODE_MII; | |
653 | } else { | |
654 | writel((RGMII_MODE_ENABLE | RGMII_INT_DELAY), &cdev->miisel); | |
655 | cpsw_slaves[0].phy_if = cpsw_slaves[1].phy_if = | |
656 | PHY_INTERFACE_MODE_RGMII; | |
657 | } | |
658 | ||
659 | rv = cpsw_register(&cpsw_data); | |
660 | if (rv < 0) | |
661 | printf("Error %d registering CPSW switch\n", rv); | |
662 | else | |
663 | n += rv; | |
664 | #endif | |
665 | ||
666 | /* | |
667 | * | |
668 | * CPSW RGMII Internal Delay Mode is not supported in all PVT | |
669 | * operating points. So we must set the TX clock delay feature | |
670 | * in the AR8051 PHY. Since we only support a single ethernet | |
671 | * device in U-Boot, we only do this for the first instance. | |
672 | */ | |
673 | #define AR8051_PHY_DEBUG_ADDR_REG 0x1d | |
674 | #define AR8051_PHY_DEBUG_DATA_REG 0x1e | |
675 | #define AR8051_DEBUG_RGMII_CLK_DLY_REG 0x5 | |
676 | #define AR8051_RGMII_TX_CLK_DLY 0x100 | |
677 | ||
678 | if (board_is_evm_sk(&header) || board_is_gp_evm(&header)) { | |
679 | const char *devname; | |
680 | devname = miiphy_get_current_dev(); | |
681 | ||
682 | miiphy_write(devname, 0x0, AR8051_PHY_DEBUG_ADDR_REG, | |
683 | AR8051_DEBUG_RGMII_CLK_DLY_REG); | |
684 | miiphy_write(devname, 0x0, AR8051_PHY_DEBUG_DATA_REG, | |
685 | AR8051_RGMII_TX_CLK_DLY); | |
686 | } | |
687 | #endif | |
688 | #if defined(CONFIG_USB_ETHER) && \ | |
689 | (!defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_USBETH_SUPPORT)) | |
690 | if (is_valid_ether_addr(mac_addr)) | |
691 | eth_setenv_enetaddr("usbnet_devaddr", mac_addr); | |
692 | ||
693 | rv = usb_eth_initialize(bis); | |
694 | if (rv < 0) | |
695 | printf("Error %d registering USB_ETHER\n", rv); | |
696 | else | |
697 | n += rv; | |
698 | #endif | |
699 | return n; | |
700 | } | |
701 | #endif |