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Yegor Yefremov6ce89322015-05-29 19:27:29 +02001/*
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
36DECLARE_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
42static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
43
44static 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
74static 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
127static 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
134static 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
145static 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
156int 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)
164const struct dpll_params dpll_ddr = {
165 266, OSC-1, 1, -1, -1, -1, -1};
166const struct dpll_params dpll_ddr_evm_sk = {
167 303, OSC-1, 1, -1, -1, -1, -1};
168const struct dpll_params dpll_ddr_baltos = {
169 400, OSC-1, 1, -1, -1, -1, -1};
170
171void 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
Yegor Yefremove6b1b582015-07-06 17:28:35 +0200187 printf("I2C speed: %d Hz\n", CONFIG_SYS_OMAP24_I2C_SPEED);
188
Yegor Yefremov6ce89322015-05-29 19:27:29 +0200189 if (i2c_probe(TPS65910_CTRL_I2C_ADDR)) {
190 puts("i2c: cannot access TPS65910\n");
191 return;
192 }
193
194 /*
195 * Depending on MPU clock and PG we will need a different
196 * VDD to drive at that speed.
197 */
198 sil_rev = readl(&cdev->deviceid) >> 28;
199 mpu_vdd = am335x_get_tps65910_mpu_vdd(sil_rev,
200 dpll_mpu_opp100.m);
201
202 /* Tell the TPS65910 to use i2c */
203 tps65910_set_i2c_control();
204
205 /* First update MPU voltage. */
206 if (tps65910_voltage_update(MPU, mpu_vdd))
207 return;
208
209 /* Second, update the CORE voltage. */
210 if (tps65910_voltage_update(CORE, TPS65910_OP_REG_SEL_1_1_3))
211 return;
212
213 /* Set CORE Frequencies to OPP100 */
214 do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
215
216 /* Set MPU Frequency to what we detected now that voltages are set */
217 do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100);
218
219 writel(0x000010ff, PRM_DEVICE_INST + 4);
220}
221
222const struct dpll_params *get_dpll_ddr_params(void)
223{
224 enable_i2c1_pin_mux();
225 i2c_set_bus_num(1);
226
227 return &dpll_ddr_baltos;
228}
229
230void set_uart_mux_conf(void)
231{
232 enable_uart0_pin_mux();
233}
234
235void set_mux_conf_regs(void)
236{
237 enable_board_pin_mux();
238}
239
240const struct ctrl_ioregs ioregs_baltos = {
241 .cm0ioctl = MT41K256M16HA125E_IOCTRL_VALUE,
242 .cm1ioctl = MT41K256M16HA125E_IOCTRL_VALUE,
243 .cm2ioctl = MT41K256M16HA125E_IOCTRL_VALUE,
244 .dt0ioctl = MT41K256M16HA125E_IOCTRL_VALUE,
245 .dt1ioctl = MT41K256M16HA125E_IOCTRL_VALUE,
246};
247
248void sdram_init(void)
249{
250 gpio_request(GPIO_DDR_VTT_EN, "ddr_vtt_en");
251 gpio_direction_output(GPIO_DDR_VTT_EN, 1);
252
253 config_ddr(400, &ioregs_baltos,
254 &ddr3_baltos_data,
255 &ddr3_baltos_cmd_ctrl_data,
256 &ddr3_baltos_emif_reg_data, 0);
257}
258#endif
259
260/*
261 * Basic board specific setup. Pinmux has been handled already.
262 */
263int board_init(void)
264{
265#if defined(CONFIG_HW_WATCHDOG)
266 hw_watchdog_init();
267#endif
268
269 gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
270#if defined(CONFIG_NOR) || defined(CONFIG_NAND)
271 gpmc_init();
272#endif
273 return 0;
274}
275
276int ft_board_setup(void *blob, bd_t *bd)
277{
278 int node, ret;
279 unsigned char mac_addr[6];
280 BSP_VS_HWPARAM header;
281
282 /* get production data */
283 if (read_eeprom(&header))
284 return 0;
285
286 /* setup MAC1 */
287 mac_addr[0] = header.MAC1[0];
288 mac_addr[1] = header.MAC1[1];
289 mac_addr[2] = header.MAC1[2];
290 mac_addr[3] = header.MAC1[3];
291 mac_addr[4] = header.MAC1[4];
292 mac_addr[5] = header.MAC1[5];
293
294
295 node = fdt_path_offset(blob, "/ocp/ethernet/slave@4a100200");
296 if (node < 0) {
297 printf("no /soc/fman/ethernet path offset\n");
298 return -ENODEV;
299 }
300
301 ret = fdt_setprop(blob, node, "mac-address", &mac_addr, 6);
302 if (ret) {
303 printf("error setting local-mac-address property\n");
304 return -ENODEV;
305 }
306
307 /* setup MAC2 */
308 mac_addr[0] = header.MAC2[0];
309 mac_addr[1] = header.MAC2[1];
310 mac_addr[2] = header.MAC2[2];
311 mac_addr[3] = header.MAC2[3];
312 mac_addr[4] = header.MAC2[4];
313 mac_addr[5] = header.MAC2[5];
314
315 node = fdt_path_offset(blob, "/ocp/ethernet/slave@4a100300");
316 if (node < 0) {
317 printf("no /soc/fman/ethernet path offset\n");
318 return -ENODEV;
319 }
320
321 ret = fdt_setprop(blob, node, "mac-address", &mac_addr, 6);
322 if (ret) {
323 printf("error setting local-mac-address property\n");
324 return -ENODEV;
325 }
326
327 printf("\nFDT was successfully setup\n");
328
329 return 0;
330}
331
332static struct module_pin_mux dip_pin_mux[] = {
333 {OFFSET(gpmc_ad12), (MODE(7) | RXACTIVE )}, /* GPIO1_12 */
334 {OFFSET(gpmc_ad13), (MODE(7) | RXACTIVE )}, /* GPIO1_13 */
335 {OFFSET(gpmc_ad14), (MODE(7) | RXACTIVE )}, /* GPIO1_14 */
336 {OFFSET(gpmc_ad15), (MODE(7) | RXACTIVE )}, /* GPIO1_15 */
337 {-1},
338};
339
340#ifdef CONFIG_BOARD_LATE_INIT
341int board_late_init(void)
342{
343#ifdef CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
344 BSP_VS_HWPARAM header;
345 char model[4];
346
347 /* get production data */
348 if (read_eeprom(&header)) {
Ben Whitten192bc692015-12-30 13:05:58 +0000349 strcpy(model, "211");
Yegor Yefremov6ce89322015-05-29 19:27:29 +0200350 } else {
351 sprintf(model, "%d", header.SystemId);
352 if (header.SystemId == 215) {
353 configure_module_pin_mux(dip_pin_mux);
354 baltos_set_console();
355 }
356 }
357 setenv("board_name", model);
358#endif
359
360 return 0;
361}
362#endif
363
364#if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
365 (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD))
366static void cpsw_control(int enabled)
367{
368 /* VTP can be added here */
369
370 return;
371}
372
373static struct cpsw_slave_data cpsw_slaves[] = {
374 {
375 .slave_reg_ofs = 0x208,
376 .sliver_reg_ofs = 0xd80,
377 .phy_addr = 0,
378 },
379 {
380 .slave_reg_ofs = 0x308,
381 .sliver_reg_ofs = 0xdc0,
382 .phy_addr = 7,
383 },
384};
385
386static struct cpsw_platform_data cpsw_data = {
387 .mdio_base = CPSW_MDIO_BASE,
388 .cpsw_base = CPSW_BASE,
389 .mdio_div = 0xff,
390 .channels = 8,
391 .cpdma_reg_ofs = 0x800,
392 .slaves = 2,
393 .slave_data = cpsw_slaves,
394 .active_slave = 1,
395 .ale_reg_ofs = 0xd00,
396 .ale_entries = 1024,
397 .host_port_reg_ofs = 0x108,
398 .hw_stats_reg_ofs = 0x900,
399 .bd_ram_ofs = 0x2000,
400 .mac_control = (1 << 5),
401 .control = cpsw_control,
402 .host_port_num = 0,
403 .version = CPSW_CTRL_VERSION_2,
404};
405#endif
406
407#if ((defined(CONFIG_SPL_ETH_SUPPORT) || defined(CONFIG_SPL_USBETH_SUPPORT)) \
408 && defined(CONFIG_SPL_BUILD)) || \
409 ((defined(CONFIG_DRIVER_TI_CPSW) || \
Paul Kocialkowski95de1e22015-08-04 17:04:06 +0200410 defined(CONFIG_USB_ETHER) && defined(CONFIG_USB_MUSB_GADGET)) && \
Yegor Yefremov6ce89322015-05-29 19:27:29 +0200411 !defined(CONFIG_SPL_BUILD))
412int board_eth_init(bd_t *bis)
413{
414 int rv, n = 0;
415 uint8_t mac_addr[6];
416 uint32_t mac_hi, mac_lo;
417 __maybe_unused struct am335x_baseboard_id header;
418
419 /*
420 * Note here that we're using CPSW1 since that has a 1Gbit PHY while
421 * CSPW0 has a 100Mbit PHY.
422 *
423 * On product, CPSW1 maps to port labeled WAN.
424 */
425
426 /* try reading mac address from efuse */
427 mac_lo = readl(&cdev->macid1l);
428 mac_hi = readl(&cdev->macid1h);
429 mac_addr[0] = mac_hi & 0xFF;
430 mac_addr[1] = (mac_hi & 0xFF00) >> 8;
431 mac_addr[2] = (mac_hi & 0xFF0000) >> 16;
432 mac_addr[3] = (mac_hi & 0xFF000000) >> 24;
433 mac_addr[4] = mac_lo & 0xFF;
434 mac_addr[5] = (mac_lo & 0xFF00) >> 8;
435
436#if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
437 (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD))
438 if (!getenv("ethaddr")) {
439 printf("<ethaddr> not set. Validating first E-fuse MAC\n");
440
441 if (is_valid_ethaddr(mac_addr))
442 eth_setenv_enetaddr("ethaddr", mac_addr);
443 }
444
445#ifdef CONFIG_DRIVER_TI_CPSW
446 writel((GMII1_SEL_RMII | GMII2_SEL_RGMII | RGMII2_IDMODE), &cdev->miisel);
447 cpsw_slaves[1].phy_if = PHY_INTERFACE_MODE_RGMII;
448 rv = cpsw_register(&cpsw_data);
449 if (rv < 0)
450 printf("Error %d registering CPSW switch\n", rv);
451 else
452 n += rv;
453#endif
454
455 /*
456 *
457 * CPSW RGMII Internal Delay Mode is not supported in all PVT
458 * operating points. So we must set the TX clock delay feature
459 * in the AR8051 PHY. Since we only support a single ethernet
460 * device in U-Boot, we only do this for the first instance.
461 */
462#define AR8051_PHY_DEBUG_ADDR_REG 0x1d
463#define AR8051_PHY_DEBUG_DATA_REG 0x1e
464#define AR8051_DEBUG_RGMII_CLK_DLY_REG 0x5
465#define AR8051_RGMII_TX_CLK_DLY 0x100
466 const char *devname;
467 devname = miiphy_get_current_dev();
468
469 miiphy_write(devname, 0x7, AR8051_PHY_DEBUG_ADDR_REG,
470 AR8051_DEBUG_RGMII_CLK_DLY_REG);
471 miiphy_write(devname, 0x7, AR8051_PHY_DEBUG_DATA_REG,
472 AR8051_RGMII_TX_CLK_DLY);
473#endif
474 return n;
475}
476#endif