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6ce89324 YY |
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/arch/mux.h> | |
24 | #include <asm/io.h> | |
25 | #include <asm/emif.h> | |
26 | #include <asm/gpio.h> | |
27 | #include <i2c.h> | |
28 | #include <miiphy.h> | |
29 | #include <cpsw.h> | |
30 | #include <power/tps65217.h> | |
31 | #include <power/tps65910.h> | |
32 | #include <environment.h> | |
33 | #include <watchdog.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 | #define DIP_S1 44 | |
41 | ||
42 | static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE; | |
43 | ||
44 | static int baltos_set_console(void) | |
45 | { | |
46 | int val, i, dips = 0; | |
47 | char buf[7]; | |
48 | ||
49 | for (i = 0; i < 4; i++) { | |
50 | sprintf(buf, "dip_s%d", i + 1); | |
51 | ||
52 | if (gpio_request(DIP_S1 + i, buf)) { | |
53 | printf("failed to export GPIO %d\n", DIP_S1 + i); | |
54 | return 0; | |
55 | } | |
56 | ||
57 | if (gpio_direction_input(DIP_S1 + i)) { | |
58 | printf("failed to set GPIO %d direction\n", DIP_S1 + i); | |
59 | return 0; | |
60 | } | |
61 | ||
62 | val = gpio_get_value(DIP_S1 + i); | |
63 | dips |= val << i; | |
64 | } | |
65 | ||
66 | printf("DIPs: 0x%1x\n", (~dips) & 0xf); | |
67 | ||
68 | if ((dips & 0xf) == 0xe) | |
69 | setenv("console", "ttyUSB0,115200n8"); | |
70 | ||
71 | return 0; | |
72 | } | |
73 | ||
74 | static int read_eeprom(BSP_VS_HWPARAM *header) | |
75 | { | |
76 | i2c_set_bus_num(1); | |
77 | ||
78 | /* Check if baseboard eeprom is available */ | |
79 | if (i2c_probe(CONFIG_SYS_I2C_EEPROM_ADDR)) { | |
80 | puts("Could not probe the EEPROM; something fundamentally " | |
81 | "wrong on the I2C bus.\n"); | |
82 | return -ENODEV; | |
83 | } | |
84 | ||
85 | /* read the eeprom using i2c */ | |
86 | if (i2c_read(CONFIG_SYS_I2C_EEPROM_ADDR, 0, 1, (uchar *)header, | |
87 | sizeof(BSP_VS_HWPARAM))) { | |
88 | puts("Could not read the EEPROM; something fundamentally" | |
89 | " wrong on the I2C bus.\n"); | |
90 | return -EIO; | |
91 | } | |
92 | ||
93 | if (header->Magic != 0xDEADBEEF) { | |
94 | ||
95 | printf("Incorrect magic number (0x%x) in EEPROM\n", | |
96 | header->Magic); | |
97 | ||
98 | /* fill default values */ | |
99 | header->SystemId = 211; | |
100 | header->MAC1[0] = 0x00; | |
101 | header->MAC1[1] = 0x00; | |
102 | header->MAC1[2] = 0x00; | |
103 | header->MAC1[3] = 0x00; | |
104 | header->MAC1[4] = 0x00; | |
105 | header->MAC1[5] = 0x01; | |
106 | ||
107 | header->MAC2[0] = 0x00; | |
108 | header->MAC2[1] = 0x00; | |
109 | header->MAC2[2] = 0x00; | |
110 | header->MAC2[3] = 0x00; | |
111 | header->MAC2[4] = 0x00; | |
112 | header->MAC2[5] = 0x02; | |
113 | ||
114 | header->MAC3[0] = 0x00; | |
115 | header->MAC3[1] = 0x00; | |
116 | header->MAC3[2] = 0x00; | |
117 | header->MAC3[3] = 0x00; | |
118 | header->MAC3[4] = 0x00; | |
119 | header->MAC3[5] = 0x03; | |
120 | } | |
121 | ||
122 | return 0; | |
123 | } | |
124 | ||
125 | #if defined(CONFIG_SPL_BUILD) || defined(CONFIG_NOR_BOOT) | |
126 | ||
127 | static const struct ddr_data ddr3_baltos_data = { | |
128 | .datardsratio0 = MT41K256M16HA125E_RD_DQS, | |
129 | .datawdsratio0 = MT41K256M16HA125E_WR_DQS, | |
130 | .datafwsratio0 = MT41K256M16HA125E_PHY_FIFO_WE, | |
131 | .datawrsratio0 = MT41K256M16HA125E_PHY_WR_DATA, | |
132 | }; | |
133 | ||
134 | static const struct cmd_control ddr3_baltos_cmd_ctrl_data = { | |
135 | .cmd0csratio = MT41K256M16HA125E_RATIO, | |
136 | .cmd0iclkout = MT41K256M16HA125E_INVERT_CLKOUT, | |
137 | ||
138 | .cmd1csratio = MT41K256M16HA125E_RATIO, | |
139 | .cmd1iclkout = MT41K256M16HA125E_INVERT_CLKOUT, | |
140 | ||
141 | .cmd2csratio = MT41K256M16HA125E_RATIO, | |
142 | .cmd2iclkout = MT41K256M16HA125E_INVERT_CLKOUT, | |
143 | }; | |
144 | ||
145 | static struct emif_regs ddr3_baltos_emif_reg_data = { | |
146 | .sdram_config = MT41K256M16HA125E_EMIF_SDCFG, | |
147 | .ref_ctrl = MT41K256M16HA125E_EMIF_SDREF, | |
148 | .sdram_tim1 = MT41K256M16HA125E_EMIF_TIM1, | |
149 | .sdram_tim2 = MT41K256M16HA125E_EMIF_TIM2, | |
150 | .sdram_tim3 = MT41K256M16HA125E_EMIF_TIM3, | |
151 | .zq_config = MT41K256M16HA125E_ZQ_CFG, | |
152 | .emif_ddr_phy_ctlr_1 = MT41K256M16HA125E_EMIF_READ_LATENCY, | |
153 | }; | |
154 | ||
155 | #ifdef CONFIG_SPL_OS_BOOT | |
156 | int spl_start_uboot(void) | |
157 | { | |
158 | /* break into full u-boot on 'c' */ | |
159 | return (serial_tstc() && serial_getc() == 'c'); | |
160 | } | |
161 | #endif | |
162 | ||
163 | #define OSC (V_OSCK/1000000) | |
164 | const struct dpll_params dpll_ddr = { | |
165 | 266, OSC-1, 1, -1, -1, -1, -1}; | |
166 | const struct dpll_params dpll_ddr_evm_sk = { | |
167 | 303, OSC-1, 1, -1, -1, -1, -1}; | |
168 | const struct dpll_params dpll_ddr_baltos = { | |
169 | 400, OSC-1, 1, -1, -1, -1, -1}; | |
170 | ||
171 | void am33xx_spl_board_init(void) | |
172 | { | |
173 | int mpu_vdd; | |
174 | int sil_rev; | |
175 | ||
176 | /* Get the frequency */ | |
177 | dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev); | |
178 | ||
179 | /* | |
180 | * The GP EVM, IDK and EVM SK use a TPS65910 PMIC. For all | |
181 | * MPU frequencies we support we use a CORE voltage of | |
182 | * 1.1375V. For MPU voltage we need to switch based on | |
183 | * the frequency we are running at. | |
184 | */ | |
185 | i2c_set_bus_num(1); | |
186 | ||
187 | if (i2c_probe(TPS65910_CTRL_I2C_ADDR)) { | |
188 | puts("i2c: cannot access TPS65910\n"); | |
189 | return; | |
190 | } | |
191 | ||
192 | /* | |
193 | * Depending on MPU clock and PG we will need a different | |
194 | * VDD to drive at that speed. | |
195 | */ | |
196 | sil_rev = readl(&cdev->deviceid) >> 28; | |
197 | mpu_vdd = am335x_get_tps65910_mpu_vdd(sil_rev, | |
198 | dpll_mpu_opp100.m); | |
199 | ||
200 | /* Tell the TPS65910 to use i2c */ | |
201 | tps65910_set_i2c_control(); | |
202 | ||
203 | /* First update MPU voltage. */ | |
204 | if (tps65910_voltage_update(MPU, mpu_vdd)) | |
205 | return; | |
206 | ||
207 | /* Second, update the CORE voltage. */ | |
208 | if (tps65910_voltage_update(CORE, TPS65910_OP_REG_SEL_1_1_3)) | |
209 | return; | |
210 | ||
211 | /* Set CORE Frequencies to OPP100 */ | |
212 | do_setup_dpll(&dpll_core_regs, &dpll_core_opp100); | |
213 | ||
214 | /* Set MPU Frequency to what we detected now that voltages are set */ | |
215 | do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100); | |
216 | ||
217 | writel(0x000010ff, PRM_DEVICE_INST + 4); | |
218 | } | |
219 | ||
220 | const struct dpll_params *get_dpll_ddr_params(void) | |
221 | { | |
222 | enable_i2c1_pin_mux(); | |
223 | i2c_set_bus_num(1); | |
224 | ||
225 | return &dpll_ddr_baltos; | |
226 | } | |
227 | ||
228 | void set_uart_mux_conf(void) | |
229 | { | |
230 | enable_uart0_pin_mux(); | |
231 | } | |
232 | ||
233 | void set_mux_conf_regs(void) | |
234 | { | |
235 | enable_board_pin_mux(); | |
236 | } | |
237 | ||
238 | const struct ctrl_ioregs ioregs_baltos = { | |
239 | .cm0ioctl = MT41K256M16HA125E_IOCTRL_VALUE, | |
240 | .cm1ioctl = MT41K256M16HA125E_IOCTRL_VALUE, | |
241 | .cm2ioctl = MT41K256M16HA125E_IOCTRL_VALUE, | |
242 | .dt0ioctl = MT41K256M16HA125E_IOCTRL_VALUE, | |
243 | .dt1ioctl = MT41K256M16HA125E_IOCTRL_VALUE, | |
244 | }; | |
245 | ||
246 | void sdram_init(void) | |
247 | { | |
248 | gpio_request(GPIO_DDR_VTT_EN, "ddr_vtt_en"); | |
249 | gpio_direction_output(GPIO_DDR_VTT_EN, 1); | |
250 | ||
251 | config_ddr(400, &ioregs_baltos, | |
252 | &ddr3_baltos_data, | |
253 | &ddr3_baltos_cmd_ctrl_data, | |
254 | &ddr3_baltos_emif_reg_data, 0); | |
255 | } | |
256 | #endif | |
257 | ||
258 | /* | |
259 | * Basic board specific setup. Pinmux has been handled already. | |
260 | */ | |
261 | int board_init(void) | |
262 | { | |
263 | #if defined(CONFIG_HW_WATCHDOG) | |
264 | hw_watchdog_init(); | |
265 | #endif | |
266 | ||
267 | gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; | |
268 | #if defined(CONFIG_NOR) || defined(CONFIG_NAND) | |
269 | gpmc_init(); | |
270 | #endif | |
271 | return 0; | |
272 | } | |
273 | ||
274 | int ft_board_setup(void *blob, bd_t *bd) | |
275 | { | |
276 | int node, ret; | |
277 | unsigned char mac_addr[6]; | |
278 | BSP_VS_HWPARAM header; | |
279 | ||
280 | /* get production data */ | |
281 | if (read_eeprom(&header)) | |
282 | return 0; | |
283 | ||
284 | /* setup MAC1 */ | |
285 | mac_addr[0] = header.MAC1[0]; | |
286 | mac_addr[1] = header.MAC1[1]; | |
287 | mac_addr[2] = header.MAC1[2]; | |
288 | mac_addr[3] = header.MAC1[3]; | |
289 | mac_addr[4] = header.MAC1[4]; | |
290 | mac_addr[5] = header.MAC1[5]; | |
291 | ||
292 | ||
293 | node = fdt_path_offset(blob, "/ocp/ethernet/slave@4a100200"); | |
294 | if (node < 0) { | |
295 | printf("no /soc/fman/ethernet path offset\n"); | |
296 | return -ENODEV; | |
297 | } | |
298 | ||
299 | ret = fdt_setprop(blob, node, "mac-address", &mac_addr, 6); | |
300 | if (ret) { | |
301 | printf("error setting local-mac-address property\n"); | |
302 | return -ENODEV; | |
303 | } | |
304 | ||
305 | /* setup MAC2 */ | |
306 | mac_addr[0] = header.MAC2[0]; | |
307 | mac_addr[1] = header.MAC2[1]; | |
308 | mac_addr[2] = header.MAC2[2]; | |
309 | mac_addr[3] = header.MAC2[3]; | |
310 | mac_addr[4] = header.MAC2[4]; | |
311 | mac_addr[5] = header.MAC2[5]; | |
312 | ||
313 | node = fdt_path_offset(blob, "/ocp/ethernet/slave@4a100300"); | |
314 | if (node < 0) { | |
315 | printf("no /soc/fman/ethernet path offset\n"); | |
316 | return -ENODEV; | |
317 | } | |
318 | ||
319 | ret = fdt_setprop(blob, node, "mac-address", &mac_addr, 6); | |
320 | if (ret) { | |
321 | printf("error setting local-mac-address property\n"); | |
322 | return -ENODEV; | |
323 | } | |
324 | ||
325 | printf("\nFDT was successfully setup\n"); | |
326 | ||
327 | return 0; | |
328 | } | |
329 | ||
330 | static struct module_pin_mux dip_pin_mux[] = { | |
331 | {OFFSET(gpmc_ad12), (MODE(7) | RXACTIVE )}, /* GPIO1_12 */ | |
332 | {OFFSET(gpmc_ad13), (MODE(7) | RXACTIVE )}, /* GPIO1_13 */ | |
333 | {OFFSET(gpmc_ad14), (MODE(7) | RXACTIVE )}, /* GPIO1_14 */ | |
334 | {OFFSET(gpmc_ad15), (MODE(7) | RXACTIVE )}, /* GPIO1_15 */ | |
335 | {-1}, | |
336 | }; | |
337 | ||
338 | #ifdef CONFIG_BOARD_LATE_INIT | |
339 | int board_late_init(void) | |
340 | { | |
341 | #ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG | |
342 | BSP_VS_HWPARAM header; | |
343 | char model[4]; | |
344 | ||
345 | /* get production data */ | |
346 | if (read_eeprom(&header)) { | |
347 | sprintf(model, "211"); | |
348 | } else { | |
349 | sprintf(model, "%d", header.SystemId); | |
350 | if (header.SystemId == 215) { | |
351 | configure_module_pin_mux(dip_pin_mux); | |
352 | baltos_set_console(); | |
353 | } | |
354 | } | |
355 | setenv("board_name", model); | |
356 | #endif | |
357 | ||
358 | return 0; | |
359 | } | |
360 | #endif | |
361 | ||
362 | #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \ | |
363 | (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD)) | |
364 | static void cpsw_control(int enabled) | |
365 | { | |
366 | /* VTP can be added here */ | |
367 | ||
368 | return; | |
369 | } | |
370 | ||
371 | static struct cpsw_slave_data cpsw_slaves[] = { | |
372 | { | |
373 | .slave_reg_ofs = 0x208, | |
374 | .sliver_reg_ofs = 0xd80, | |
375 | .phy_addr = 0, | |
376 | }, | |
377 | { | |
378 | .slave_reg_ofs = 0x308, | |
379 | .sliver_reg_ofs = 0xdc0, | |
380 | .phy_addr = 7, | |
381 | }, | |
382 | }; | |
383 | ||
384 | static struct cpsw_platform_data cpsw_data = { | |
385 | .mdio_base = CPSW_MDIO_BASE, | |
386 | .cpsw_base = CPSW_BASE, | |
387 | .mdio_div = 0xff, | |
388 | .channels = 8, | |
389 | .cpdma_reg_ofs = 0x800, | |
390 | .slaves = 2, | |
391 | .slave_data = cpsw_slaves, | |
392 | .active_slave = 1, | |
393 | .ale_reg_ofs = 0xd00, | |
394 | .ale_entries = 1024, | |
395 | .host_port_reg_ofs = 0x108, | |
396 | .hw_stats_reg_ofs = 0x900, | |
397 | .bd_ram_ofs = 0x2000, | |
398 | .mac_control = (1 << 5), | |
399 | .control = cpsw_control, | |
400 | .host_port_num = 0, | |
401 | .version = CPSW_CTRL_VERSION_2, | |
402 | }; | |
403 | #endif | |
404 | ||
405 | #if ((defined(CONFIG_SPL_ETH_SUPPORT) || defined(CONFIG_SPL_USBETH_SUPPORT)) \ | |
406 | && defined(CONFIG_SPL_BUILD)) || \ | |
407 | ((defined(CONFIG_DRIVER_TI_CPSW) || \ | |
408 | defined(CONFIG_USB_ETHER) && defined(CONFIG_MUSB_GADGET)) && \ | |
409 | !defined(CONFIG_SPL_BUILD)) | |
410 | int board_eth_init(bd_t *bis) | |
411 | { | |
412 | int rv, n = 0; | |
413 | uint8_t mac_addr[6]; | |
414 | uint32_t mac_hi, mac_lo; | |
415 | __maybe_unused struct am335x_baseboard_id header; | |
416 | ||
417 | /* | |
418 | * Note here that we're using CPSW1 since that has a 1Gbit PHY while | |
419 | * CSPW0 has a 100Mbit PHY. | |
420 | * | |
421 | * On product, CPSW1 maps to port labeled WAN. | |
422 | */ | |
423 | ||
424 | /* try reading mac address from efuse */ | |
425 | mac_lo = readl(&cdev->macid1l); | |
426 | mac_hi = readl(&cdev->macid1h); | |
427 | mac_addr[0] = mac_hi & 0xFF; | |
428 | mac_addr[1] = (mac_hi & 0xFF00) >> 8; | |
429 | mac_addr[2] = (mac_hi & 0xFF0000) >> 16; | |
430 | mac_addr[3] = (mac_hi & 0xFF000000) >> 24; | |
431 | mac_addr[4] = mac_lo & 0xFF; | |
432 | mac_addr[5] = (mac_lo & 0xFF00) >> 8; | |
433 | ||
434 | #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \ | |
435 | (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD)) | |
436 | if (!getenv("ethaddr")) { | |
437 | printf("<ethaddr> not set. Validating first E-fuse MAC\n"); | |
438 | ||
439 | if (is_valid_ethaddr(mac_addr)) | |
440 | eth_setenv_enetaddr("ethaddr", mac_addr); | |
441 | } | |
442 | ||
443 | #ifdef CONFIG_DRIVER_TI_CPSW | |
444 | writel((GMII1_SEL_RMII | GMII2_SEL_RGMII | RGMII2_IDMODE), &cdev->miisel); | |
445 | cpsw_slaves[1].phy_if = PHY_INTERFACE_MODE_RGMII; | |
446 | rv = cpsw_register(&cpsw_data); | |
447 | if (rv < 0) | |
448 | printf("Error %d registering CPSW switch\n", rv); | |
449 | else | |
450 | n += rv; | |
451 | #endif | |
452 | ||
453 | /* | |
454 | * | |
455 | * CPSW RGMII Internal Delay Mode is not supported in all PVT | |
456 | * operating points. So we must set the TX clock delay feature | |
457 | * in the AR8051 PHY. Since we only support a single ethernet | |
458 | * device in U-Boot, we only do this for the first instance. | |
459 | */ | |
460 | #define AR8051_PHY_DEBUG_ADDR_REG 0x1d | |
461 | #define AR8051_PHY_DEBUG_DATA_REG 0x1e | |
462 | #define AR8051_DEBUG_RGMII_CLK_DLY_REG 0x5 | |
463 | #define AR8051_RGMII_TX_CLK_DLY 0x100 | |
464 | const char *devname; | |
465 | devname = miiphy_get_current_dev(); | |
466 | ||
467 | miiphy_write(devname, 0x7, AR8051_PHY_DEBUG_ADDR_REG, | |
468 | AR8051_DEBUG_RGMII_CLK_DLY_REG); | |
469 | miiphy_write(devname, 0x7, AR8051_PHY_DEBUG_DATA_REG, | |
470 | AR8051_RGMII_TX_CLK_DLY); | |
471 | #endif | |
472 | return n; | |
473 | } | |
474 | #endif |