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83d290c5 | 1 | // SPDX-License-Identifier: GPL-2.0+ |
6ce89324 YY |
2 | /* |
3 | * board.c | |
4 | * | |
5 | * Board functions for TI AM335X based boards | |
6 | * | |
7 | * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/ | |
6ce89324 YY |
8 | */ |
9 | ||
10 | #include <common.h> | |
9fb625ce | 11 | #include <env.h> |
6ce89324 | 12 | #include <errno.h> |
5255932f | 13 | #include <init.h> |
90526e9f | 14 | #include <net.h> |
b03e0510 | 15 | #include <serial.h> |
b08c8c48 | 16 | #include <linux/libfdt.h> |
6ce89324 YY |
17 | #include <spl.h> |
18 | #include <asm/arch/cpu.h> | |
19 | #include <asm/arch/hardware.h> | |
20 | #include <asm/arch/omap.h> | |
21 | #include <asm/arch/ddr_defs.h> | |
22 | #include <asm/arch/clock.h> | |
23 | #include <asm/arch/gpio.h> | |
24 | #include <asm/arch/mmc_host_def.h> | |
25 | #include <asm/arch/sys_proto.h> | |
26 | #include <asm/arch/mem.h> | |
27 | #include <asm/arch/mux.h> | |
28 | #include <asm/io.h> | |
29 | #include <asm/emif.h> | |
30 | #include <asm/gpio.h> | |
31 | #include <i2c.h> | |
32 | #include <miiphy.h> | |
33 | #include <cpsw.h> | |
6ce89324 | 34 | #include <power/tps65910.h> |
6ce89324 YY |
35 | #include <watchdog.h> |
36 | #include "board.h" | |
37 | ||
38 | DECLARE_GLOBAL_DATA_PTR; | |
39 | ||
67c145a8 | 40 | /* GPIO that controls DIP switch and mPCIe slot */ |
6ce89324 | 41 | #define DIP_S1 44 |
dcf7f6f1 | 42 | #define MPCIE_SW 100 |
6ce89324 YY |
43 | |
44 | static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE; | |
45 | ||
46 | static int baltos_set_console(void) | |
47 | { | |
48 | int val, i, dips = 0; | |
49 | char buf[7]; | |
50 | ||
51 | for (i = 0; i < 4; i++) { | |
52 | sprintf(buf, "dip_s%d", i + 1); | |
53 | ||
54 | if (gpio_request(DIP_S1 + i, buf)) { | |
55 | printf("failed to export GPIO %d\n", DIP_S1 + i); | |
56 | return 0; | |
57 | } | |
58 | ||
59 | if (gpio_direction_input(DIP_S1 + i)) { | |
60 | printf("failed to set GPIO %d direction\n", DIP_S1 + i); | |
61 | return 0; | |
62 | } | |
63 | ||
64 | val = gpio_get_value(DIP_S1 + i); | |
65 | dips |= val << i; | |
66 | } | |
67 | ||
68 | printf("DIPs: 0x%1x\n", (~dips) & 0xf); | |
69 | ||
70 | if ((dips & 0xf) == 0xe) | |
382bee57 | 71 | env_set("console", "ttyUSB0,115200n8"); |
6ce89324 YY |
72 | |
73 | return 0; | |
74 | } | |
75 | ||
76 | static int read_eeprom(BSP_VS_HWPARAM *header) | |
77 | { | |
78 | i2c_set_bus_num(1); | |
79 | ||
80 | /* Check if baseboard eeprom is available */ | |
81 | if (i2c_probe(CONFIG_SYS_I2C_EEPROM_ADDR)) { | |
82 | puts("Could not probe the EEPROM; something fundamentally " | |
83 | "wrong on the I2C bus.\n"); | |
84 | return -ENODEV; | |
85 | } | |
86 | ||
87 | /* read the eeprom using i2c */ | |
88 | if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 1, (uchar *)header, | |
89 | sizeof(BSP_VS_HWPARAM))) { | |
90 | puts("Could not read the EEPROM; something fundamentally" | |
91 | " wrong on the I2C bus.\n"); | |
92 | return -EIO; | |
93 | } | |
94 | ||
95 | if (header->Magic != 0xDEADBEEF) { | |
96 | ||
97 | printf("Incorrect magic number (0x%x) in EEPROM\n", | |
98 | header->Magic); | |
99 | ||
100 | /* fill default values */ | |
101 | header->SystemId = 211; | |
102 | header->MAC1[0] = 0x00; | |
103 | header->MAC1[1] = 0x00; | |
104 | header->MAC1[2] = 0x00; | |
105 | header->MAC1[3] = 0x00; | |
106 | header->MAC1[4] = 0x00; | |
107 | header->MAC1[5] = 0x01; | |
108 | ||
109 | header->MAC2[0] = 0x00; | |
110 | header->MAC2[1] = 0x00; | |
111 | header->MAC2[2] = 0x00; | |
112 | header->MAC2[3] = 0x00; | |
113 | header->MAC2[4] = 0x00; | |
114 | header->MAC2[5] = 0x02; | |
115 | ||
116 | header->MAC3[0] = 0x00; | |
117 | header->MAC3[1] = 0x00; | |
118 | header->MAC3[2] = 0x00; | |
119 | header->MAC3[3] = 0x00; | |
120 | header->MAC3[4] = 0x00; | |
121 | header->MAC3[5] = 0x03; | |
122 | } | |
123 | ||
124 | return 0; | |
125 | } | |
126 | ||
127 | #if defined(CONFIG_SPL_BUILD) || defined(CONFIG_NOR_BOOT) | |
128 | ||
129 | static const struct ddr_data ddr3_baltos_data = { | |
130 | .datardsratio0 = MT41K256M16HA125E_RD_DQS, | |
131 | .datawdsratio0 = MT41K256M16HA125E_WR_DQS, | |
132 | .datafwsratio0 = MT41K256M16HA125E_PHY_FIFO_WE, | |
133 | .datawrsratio0 = MT41K256M16HA125E_PHY_WR_DATA, | |
134 | }; | |
135 | ||
136 | static const struct cmd_control ddr3_baltos_cmd_ctrl_data = { | |
137 | .cmd0csratio = MT41K256M16HA125E_RATIO, | |
138 | .cmd0iclkout = MT41K256M16HA125E_INVERT_CLKOUT, | |
139 | ||
140 | .cmd1csratio = MT41K256M16HA125E_RATIO, | |
141 | .cmd1iclkout = MT41K256M16HA125E_INVERT_CLKOUT, | |
142 | ||
143 | .cmd2csratio = MT41K256M16HA125E_RATIO, | |
144 | .cmd2iclkout = MT41K256M16HA125E_INVERT_CLKOUT, | |
145 | }; | |
146 | ||
147 | static struct emif_regs ddr3_baltos_emif_reg_data = { | |
148 | .sdram_config = MT41K256M16HA125E_EMIF_SDCFG, | |
149 | .ref_ctrl = MT41K256M16HA125E_EMIF_SDREF, | |
150 | .sdram_tim1 = MT41K256M16HA125E_EMIF_TIM1, | |
151 | .sdram_tim2 = MT41K256M16HA125E_EMIF_TIM2, | |
152 | .sdram_tim3 = MT41K256M16HA125E_EMIF_TIM3, | |
153 | .zq_config = MT41K256M16HA125E_ZQ_CFG, | |
154 | .emif_ddr_phy_ctlr_1 = MT41K256M16HA125E_EMIF_READ_LATENCY, | |
155 | }; | |
156 | ||
157 | #ifdef CONFIG_SPL_OS_BOOT | |
158 | int spl_start_uboot(void) | |
159 | { | |
160 | /* break into full u-boot on 'c' */ | |
161 | return (serial_tstc() && serial_getc() == 'c'); | |
162 | } | |
163 | #endif | |
164 | ||
165 | #define OSC (V_OSCK/1000000) | |
166 | const struct dpll_params dpll_ddr = { | |
167 | 266, OSC-1, 1, -1, -1, -1, -1}; | |
168 | const struct dpll_params dpll_ddr_evm_sk = { | |
169 | 303, OSC-1, 1, -1, -1, -1, -1}; | |
170 | const struct dpll_params dpll_ddr_baltos = { | |
171 | 400, OSC-1, 1, -1, -1, -1, -1}; | |
172 | ||
173 | void am33xx_spl_board_init(void) | |
174 | { | |
175 | int mpu_vdd; | |
176 | int sil_rev; | |
177 | ||
178 | /* Get the frequency */ | |
179 | dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev); | |
180 | ||
181 | /* | |
182 | * The GP EVM, IDK and EVM SK use a TPS65910 PMIC. For all | |
183 | * MPU frequencies we support we use a CORE voltage of | |
184 | * 1.1375V. For MPU voltage we need to switch based on | |
185 | * the frequency we are running at. | |
186 | */ | |
187 | i2c_set_bus_num(1); | |
188 | ||
e6b1b58b YY |
189 | printf("I2C speed: %d Hz\n", CONFIG_SYS_OMAP24_I2C_SPEED); |
190 | ||
6ce89324 YY |
191 | if (i2c_probe(TPS65910_CTRL_I2C_ADDR)) { |
192 | puts("i2c: cannot access TPS65910\n"); | |
193 | return; | |
194 | } | |
195 | ||
196 | /* | |
197 | * Depending on MPU clock and PG we will need a different | |
198 | * VDD to drive at that speed. | |
199 | */ | |
200 | sil_rev = readl(&cdev->deviceid) >> 28; | |
201 | mpu_vdd = am335x_get_tps65910_mpu_vdd(sil_rev, | |
202 | dpll_mpu_opp100.m); | |
203 | ||
204 | /* Tell the TPS65910 to use i2c */ | |
205 | tps65910_set_i2c_control(); | |
206 | ||
207 | /* First update MPU voltage. */ | |
208 | if (tps65910_voltage_update(MPU, mpu_vdd)) | |
209 | return; | |
210 | ||
211 | /* Second, update the CORE voltage. */ | |
212 | if (tps65910_voltage_update(CORE, TPS65910_OP_REG_SEL_1_1_3)) | |
213 | return; | |
214 | ||
215 | /* Set CORE Frequencies to OPP100 */ | |
216 | do_setup_dpll(&dpll_core_regs, &dpll_core_opp100); | |
217 | ||
218 | /* Set MPU Frequency to what we detected now that voltages are set */ | |
219 | do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100); | |
220 | ||
221 | writel(0x000010ff, PRM_DEVICE_INST + 4); | |
222 | } | |
223 | ||
224 | const struct dpll_params *get_dpll_ddr_params(void) | |
225 | { | |
226 | enable_i2c1_pin_mux(); | |
227 | i2c_set_bus_num(1); | |
228 | ||
229 | return &dpll_ddr_baltos; | |
230 | } | |
231 | ||
232 | void set_uart_mux_conf(void) | |
233 | { | |
234 | enable_uart0_pin_mux(); | |
235 | } | |
236 | ||
237 | void set_mux_conf_regs(void) | |
238 | { | |
239 | enable_board_pin_mux(); | |
240 | } | |
241 | ||
242 | const struct ctrl_ioregs ioregs_baltos = { | |
243 | .cm0ioctl = MT41K256M16HA125E_IOCTRL_VALUE, | |
244 | .cm1ioctl = MT41K256M16HA125E_IOCTRL_VALUE, | |
245 | .cm2ioctl = MT41K256M16HA125E_IOCTRL_VALUE, | |
246 | .dt0ioctl = MT41K256M16HA125E_IOCTRL_VALUE, | |
247 | .dt1ioctl = MT41K256M16HA125E_IOCTRL_VALUE, | |
248 | }; | |
249 | ||
250 | void sdram_init(void) | |
251 | { | |
6ce89324 YY |
252 | config_ddr(400, &ioregs_baltos, |
253 | &ddr3_baltos_data, | |
254 | &ddr3_baltos_cmd_ctrl_data, | |
255 | &ddr3_baltos_emif_reg_data, 0); | |
256 | } | |
257 | #endif | |
258 | ||
259 | /* | |
260 | * Basic board specific setup. Pinmux has been handled already. | |
261 | */ | |
262 | int board_init(void) | |
263 | { | |
264 | #if defined(CONFIG_HW_WATCHDOG) | |
265 | hw_watchdog_init(); | |
266 | #endif | |
267 | ||
268 | gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; | |
88718be3 | 269 | #if defined(CONFIG_NOR) || defined(CONFIG_MTD_RAW_NAND) |
6ce89324 YY |
270 | gpmc_init(); |
271 | #endif | |
272 | return 0; | |
273 | } | |
274 | ||
275 | int ft_board_setup(void *blob, bd_t *bd) | |
276 | { | |
277 | int node, ret; | |
278 | unsigned char mac_addr[6]; | |
279 | BSP_VS_HWPARAM header; | |
280 | ||
281 | /* get production data */ | |
282 | if (read_eeprom(&header)) | |
283 | return 0; | |
284 | ||
285 | /* setup MAC1 */ | |
286 | mac_addr[0] = header.MAC1[0]; | |
287 | mac_addr[1] = header.MAC1[1]; | |
288 | mac_addr[2] = header.MAC1[2]; | |
289 | mac_addr[3] = header.MAC1[3]; | |
290 | mac_addr[4] = header.MAC1[4]; | |
291 | mac_addr[5] = header.MAC1[5]; | |
292 | ||
293 | ||
debe7a14 | 294 | node = fdt_path_offset(blob, "ethernet0"); |
6ce89324 | 295 | if (node < 0) { |
debe7a14 | 296 | printf("no ethernet0 path offset\n"); |
6ce89324 YY |
297 | return -ENODEV; |
298 | } | |
299 | ||
300 | ret = fdt_setprop(blob, node, "mac-address", &mac_addr, 6); | |
301 | if (ret) { | |
debe7a14 | 302 | printf("error setting mac-address property\n"); |
6ce89324 YY |
303 | return -ENODEV; |
304 | } | |
305 | ||
306 | /* setup MAC2 */ | |
307 | mac_addr[0] = header.MAC2[0]; | |
308 | mac_addr[1] = header.MAC2[1]; | |
309 | mac_addr[2] = header.MAC2[2]; | |
310 | mac_addr[3] = header.MAC2[3]; | |
311 | mac_addr[4] = header.MAC2[4]; | |
312 | mac_addr[5] = header.MAC2[5]; | |
313 | ||
debe7a14 | 314 | node = fdt_path_offset(blob, "ethernet1"); |
6ce89324 | 315 | if (node < 0) { |
debe7a14 | 316 | printf("no ethernet1 path offset\n"); |
6ce89324 YY |
317 | return -ENODEV; |
318 | } | |
319 | ||
320 | ret = fdt_setprop(blob, node, "mac-address", &mac_addr, 6); | |
321 | if (ret) { | |
debe7a14 | 322 | printf("error setting mac-address property\n"); |
6ce89324 YY |
323 | return -ENODEV; |
324 | } | |
325 | ||
326 | printf("\nFDT was successfully setup\n"); | |
327 | ||
328 | return 0; | |
329 | } | |
330 | ||
dcf7f6f1 YY |
331 | static struct module_pin_mux pcie_sw_pin_mux[] = { |
332 | {OFFSET(mii1_rxdv), (MODE(7) | PULLUDEN )}, /* GPIO3_4 */ | |
333 | {-1}, | |
334 | }; | |
335 | ||
6ce89324 YY |
336 | static struct module_pin_mux dip_pin_mux[] = { |
337 | {OFFSET(gpmc_ad12), (MODE(7) | RXACTIVE )}, /* GPIO1_12 */ | |
338 | {OFFSET(gpmc_ad13), (MODE(7) | RXACTIVE )}, /* GPIO1_13 */ | |
339 | {OFFSET(gpmc_ad14), (MODE(7) | RXACTIVE )}, /* GPIO1_14 */ | |
340 | {OFFSET(gpmc_ad15), (MODE(7) | RXACTIVE )}, /* GPIO1_15 */ | |
341 | {-1}, | |
342 | }; | |
343 | ||
344 | #ifdef CONFIG_BOARD_LATE_INIT | |
345 | int board_late_init(void) | |
346 | { | |
347 | #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG | |
348 | BSP_VS_HWPARAM header; | |
349 | char model[4]; | |
350 | ||
351 | /* get production data */ | |
352 | if (read_eeprom(&header)) { | |
192bc694 | 353 | strcpy(model, "211"); |
6ce89324 YY |
354 | } else { |
355 | sprintf(model, "%d", header.SystemId); | |
356 | if (header.SystemId == 215) { | |
357 | configure_module_pin_mux(dip_pin_mux); | |
358 | baltos_set_console(); | |
359 | } | |
360 | } | |
dcf7f6f1 YY |
361 | |
362 | /* turn power for the mPCIe slot */ | |
363 | configure_module_pin_mux(pcie_sw_pin_mux); | |
364 | if (gpio_request(MPCIE_SW, "mpcie_sw")) { | |
365 | printf("failed to export GPIO %d\n", MPCIE_SW); | |
366 | return -ENODEV; | |
367 | } | |
368 | if (gpio_direction_output(MPCIE_SW, 1)) { | |
369 | printf("failed to set GPIO %d direction\n", MPCIE_SW); | |
370 | return -ENODEV; | |
371 | } | |
372 | ||
382bee57 | 373 | env_set("board_name", model); |
6ce89324 YY |
374 | #endif |
375 | ||
376 | return 0; | |
377 | } | |
378 | #endif | |
379 | ||
380 | #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \ | |
381 | (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD)) | |
382 | static void cpsw_control(int enabled) | |
383 | { | |
384 | /* VTP can be added here */ | |
385 | ||
386 | return; | |
387 | } | |
388 | ||
389 | static struct cpsw_slave_data cpsw_slaves[] = { | |
390 | { | |
391 | .slave_reg_ofs = 0x208, | |
392 | .sliver_reg_ofs = 0xd80, | |
393 | .phy_addr = 0, | |
394 | }, | |
395 | { | |
396 | .slave_reg_ofs = 0x308, | |
397 | .sliver_reg_ofs = 0xdc0, | |
398 | .phy_addr = 7, | |
399 | }, | |
400 | }; | |
401 | ||
402 | static struct cpsw_platform_data cpsw_data = { | |
403 | .mdio_base = CPSW_MDIO_BASE, | |
404 | .cpsw_base = CPSW_BASE, | |
405 | .mdio_div = 0xff, | |
406 | .channels = 8, | |
407 | .cpdma_reg_ofs = 0x800, | |
408 | .slaves = 2, | |
409 | .slave_data = cpsw_slaves, | |
410 | .active_slave = 1, | |
411 | .ale_reg_ofs = 0xd00, | |
412 | .ale_entries = 1024, | |
413 | .host_port_reg_ofs = 0x108, | |
414 | .hw_stats_reg_ofs = 0x900, | |
415 | .bd_ram_ofs = 0x2000, | |
416 | .mac_control = (1 << 5), | |
417 | .control = cpsw_control, | |
418 | .host_port_num = 0, | |
419 | .version = CPSW_CTRL_VERSION_2, | |
420 | }; | |
421 | #endif | |
422 | ||
b432b1eb | 423 | #if ((defined(CONFIG_SPL_ETH_SUPPORT) || defined(CONFIG_SPL_USB_ETHER)) \ |
6ce89324 YY |
424 | && defined(CONFIG_SPL_BUILD)) || \ |
425 | ((defined(CONFIG_DRIVER_TI_CPSW) || \ | |
95de1e2f | 426 | defined(CONFIG_USB_ETHER) && defined(CONFIG_USB_MUSB_GADGET)) && \ |
6ce89324 YY |
427 | !defined(CONFIG_SPL_BUILD)) |
428 | int board_eth_init(bd_t *bis) | |
429 | { | |
430 | int rv, n = 0; | |
431 | uint8_t mac_addr[6]; | |
432 | uint32_t mac_hi, mac_lo; | |
6ce89324 YY |
433 | |
434 | /* | |
435 | * Note here that we're using CPSW1 since that has a 1Gbit PHY while | |
436 | * CSPW0 has a 100Mbit PHY. | |
437 | * | |
438 | * On product, CPSW1 maps to port labeled WAN. | |
439 | */ | |
440 | ||
441 | /* try reading mac address from efuse */ | |
442 | mac_lo = readl(&cdev->macid1l); | |
443 | mac_hi = readl(&cdev->macid1h); | |
444 | mac_addr[0] = mac_hi & 0xFF; | |
445 | mac_addr[1] = (mac_hi & 0xFF00) >> 8; | |
446 | mac_addr[2] = (mac_hi & 0xFF0000) >> 16; | |
447 | mac_addr[3] = (mac_hi & 0xFF000000) >> 24; | |
448 | mac_addr[4] = mac_lo & 0xFF; | |
449 | mac_addr[5] = (mac_lo & 0xFF00) >> 8; | |
450 | ||
451 | #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \ | |
452 | (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD)) | |
00caae6d | 453 | if (!env_get("ethaddr")) { |
6ce89324 YY |
454 | printf("<ethaddr> not set. Validating first E-fuse MAC\n"); |
455 | ||
456 | if (is_valid_ethaddr(mac_addr)) | |
fd1e959e | 457 | eth_env_set_enetaddr("ethaddr", mac_addr); |
6ce89324 YY |
458 | } |
459 | ||
460 | #ifdef CONFIG_DRIVER_TI_CPSW | |
461 | writel((GMII1_SEL_RMII | GMII2_SEL_RGMII | RGMII2_IDMODE), &cdev->miisel); | |
462 | cpsw_slaves[1].phy_if = PHY_INTERFACE_MODE_RGMII; | |
463 | rv = cpsw_register(&cpsw_data); | |
464 | if (rv < 0) | |
465 | printf("Error %d registering CPSW switch\n", rv); | |
466 | else | |
467 | n += rv; | |
468 | #endif | |
469 | ||
470 | /* | |
471 | * | |
472 | * CPSW RGMII Internal Delay Mode is not supported in all PVT | |
473 | * operating points. So we must set the TX clock delay feature | |
474 | * in the AR8051 PHY. Since we only support a single ethernet | |
475 | * device in U-Boot, we only do this for the first instance. | |
476 | */ | |
477 | #define AR8051_PHY_DEBUG_ADDR_REG 0x1d | |
478 | #define AR8051_PHY_DEBUG_DATA_REG 0x1e | |
479 | #define AR8051_DEBUG_RGMII_CLK_DLY_REG 0x5 | |
480 | #define AR8051_RGMII_TX_CLK_DLY 0x100 | |
481 | const char *devname; | |
482 | devname = miiphy_get_current_dev(); | |
483 | ||
484 | miiphy_write(devname, 0x7, AR8051_PHY_DEBUG_ADDR_REG, | |
485 | AR8051_DEBUG_RGMII_CLK_DLY_REG); | |
486 | miiphy_write(devname, 0x7, AR8051_PHY_DEBUG_DATA_REG, | |
487 | AR8051_RGMII_TX_CLK_DLY); | |
488 | #endif | |
489 | return n; | |
490 | } | |
491 | #endif |