board/BuR/common/common.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * common.c
   4  *
   5  * common board functions for B&R boards
   6  *
   7  * Copyright (C) 2013 Hannes Schmelzer <oe5hpm@oevsv.at>
   8  * Bernecker & Rainer Industrieelektronik GmbH - http://www.br-automation.com
   9  *
  10  */
  11 #include <log.h>
  12 #include <version.h>
  13 #include <common.h>
  14 #include <env.h>
  15 #include <fdtdec.h>
  16 #include <i2c.h>
  17 #include <lcd.h>
  18 #include "bur_common.h"
  19
  20 DECLARE_GLOBAL_DATA_PTR;
  21
  22 /* --------------------------------------------------------------------------*/
  23 #if defined(CONFIG_LCD) && defined(CONFIG_AM335X_LCD) && \
  24         !defined(CONFIG_DM_VIDEO) && !defined(CONFIG_SPL_BUILD)
  25 #include <asm/arch/hardware.h>
  26 #include <asm/arch/cpu.h>
  27 #include <asm/gpio.h>
  28 #include <power/tps65217.h>
  29 #include "../../../drivers/video/am335x-fb.h"
  30
  31 void lcdbacklight(int on)
  32 {
  33         unsigned int driver = env_get_ulong("ds1_bright_drv", 16, 0UL);
  34         unsigned int bright = env_get_ulong("ds1_bright_def", 10, 50);
  35         unsigned int pwmfrq = env_get_ulong("ds1_pwmfreq", 10, ~0UL);
  36         unsigned int tmp;
  37         struct gptimer *timerhw;
  38
  39         if (on)
  40                 bright = bright != ~0UL ? bright : 50;
  41         else
  42                 bright = 0;
  43
  44         switch (driver) {
  45         case 2:
  46                 timerhw = (struct gptimer *)DM_TIMER5_BASE;
  47                 break;
  48         default:
  49                 timerhw = (struct gptimer *)DM_TIMER6_BASE;
  50         }
  51
  52         switch (driver) {
  53         case 0: /* PMIC LED-Driver */
  54                 /* brightness level */
  55                 tps65217_reg_write(TPS65217_PROT_LEVEL_NONE,
  56                                    TPS65217_WLEDCTRL2, bright, 0xFF);
  57                 /* current sink */
  58                 tps65217_reg_write(TPS65217_PROT_LEVEL_NONE,
  59                                    TPS65217_WLEDCTRL1,
  60                                    bright != 0 ? 0x0A : 0x02,
  61                                    0xFF);
  62                 break;
  63         case 1:
  64         case 2: /* PWM using timer */
  65                 if (pwmfrq != ~0UL) {
  66                         timerhw->tiocp_cfg = TCFG_RESET;
  67                         udelay(10);
  68                         while (timerhw->tiocp_cfg & TCFG_RESET)
  69                                 ;
  70                         tmp = ~0UL-(V_OSCK/pwmfrq);     /* bottom value */
  71                         timerhw->tldr = tmp;
  72                         timerhw->tcrr = tmp;
  73                         tmp = tmp + ((V_OSCK/pwmfrq)/100) * bright;
  74                         timerhw->tmar = tmp;
  75                         timerhw->tclr = (TCLR_PT | (2 << TCLR_TRG_SHIFT) |
  76                                         TCLR_CE | TCLR_AR | TCLR_ST);
  77                 } else {
  78                         puts("invalid pwmfrq in env/dtb! skip PWM-setup.\n");
  79                 }
  80                 break;
  81         default:
  82                 puts("no suitable backlightdriver in env/dtb!\n");
  83                 break;
  84         }
  85 }
  86
  87 int load_lcdtiming(struct am335x_lcdpanel *panel)
  88 {
  89         struct am335x_lcdpanel pnltmp;
  90
  91         pnltmp.hactive = env_get_ulong("ds1_hactive", 10, ~0UL);
  92         pnltmp.vactive = env_get_ulong("ds1_vactive", 10, ~0UL);
  93         pnltmp.bpp = env_get_ulong("ds1_bpp", 10, ~0UL);
  94         pnltmp.hfp = env_get_ulong("ds1_hfp", 10, ~0UL);
  95         pnltmp.hbp = env_get_ulong("ds1_hbp", 10, ~0UL);
  96         pnltmp.hsw = env_get_ulong("ds1_hsw", 10, ~0UL);
  97         pnltmp.vfp = env_get_ulong("ds1_vfp", 10, ~0UL);
  98         pnltmp.vbp = env_get_ulong("ds1_vbp", 10, ~0UL);
  99         pnltmp.vsw = env_get_ulong("ds1_vsw", 10, ~0UL);
 100         pnltmp.pxl_clk = env_get_ulong("ds1_pxlclk", 10, ~0UL);
 101         pnltmp.pol = env_get_ulong("ds1_pol", 16, ~0UL);
 102         pnltmp.pup_delay = env_get_ulong("ds1_pupdelay", 10, ~0UL);
 103         pnltmp.pon_delay = env_get_ulong("ds1_tondelay", 10, ~0UL);
 104         panel_info.vl_rot = env_get_ulong("ds1_rotation", 10, 0);
 105
 106         if (
 107            ~0UL == (pnltmp.hactive) ||
 108            ~0UL == (pnltmp.vactive) ||
 109            ~0UL == (pnltmp.bpp) ||
 110            ~0UL == (pnltmp.hfp) ||
 111            ~0UL == (pnltmp.hbp) ||
 112            ~0UL == (pnltmp.hsw) ||
 113            ~0UL == (pnltmp.vfp) ||
 114            ~0UL == (pnltmp.vbp) ||
 115            ~0UL == (pnltmp.vsw) ||
 116            ~0UL == (pnltmp.pxl_clk) ||
 117            ~0UL == (pnltmp.pol) ||
 118            ~0UL == (pnltmp.pup_delay) ||
 119            ~0UL == (pnltmp.pon_delay)
 120            ) {
 121                 puts("lcd-settings in env/dtb incomplete!\n");
 122                 printf("display-timings:\n"
 123                         "================\n"
 124                         "hactive: %d\n"
 125                         "vactive: %d\n"
 126                         "bpp    : %d\n"
 127                         "hfp    : %d\n"
 128                         "hbp    : %d\n"
 129                         "hsw    : %d\n"
 130                         "vfp    : %d\n"
 131                         "vbp    : %d\n"
 132                         "vsw    : %d\n"
 133                         "pxlclk : %d\n"
 134                         "pol    : 0x%08x\n"
 135                         "pondly : %d\n",
 136                         pnltmp.hactive, pnltmp.vactive, pnltmp.bpp,
 137                         pnltmp.hfp, pnltmp.hbp, pnltmp.hsw,
 138                         pnltmp.vfp, pnltmp.vbp, pnltmp.vsw,
 139                         pnltmp.pxl_clk, pnltmp.pol, pnltmp.pon_delay);
 140
 141                 return -1;
 142         }
 143         debug("lcd-settings in env complete, taking over.\n");
 144         memcpy((void *)panel,
 145                (void *)&pnltmp,
 146                sizeof(struct am335x_lcdpanel));
 147
 148         return 0;
 149 }
 150
 151 static void br_summaryscreen_printenv(char *prefix,
 152                                        char *name, char *altname,
 153                                        char *suffix)
 154 {
 155         char *envval = env_get(name);
 156         if (0 != envval) {
 157                 lcd_printf("%s %s %s", prefix, envval, suffix);
 158         } else if (0 != altname) {
 159                 envval = env_get(altname);
 160                 if (0 != envval)
 161                         lcd_printf("%s %s %s", prefix, envval, suffix);
 162         } else {
 163                 lcd_printf("\n");
 164         }
 165 }
 166
 167 void br_summaryscreen(void)
 168 {
 169         br_summaryscreen_printenv(" - B&R -", "br_orderno", 0, "-\n");
 170         br_summaryscreen_printenv(" Serial/Rev :", "br_serial", 0, "\n");
 171         br_summaryscreen_printenv(" MAC1       :", "br_mac1", "ethaddr", "\n");
 172         br_summaryscreen_printenv(" MAC2       :", "br_mac2", 0, "\n");
 173         lcd_puts(" Bootloader : " PLAIN_VERSION "\n");
 174         lcd_puts("\n");
 175 }
 176
 177 void lcdpower(int on)
 178 {
 179         u32 pin, swval, i;
 180         char buf[16] = { 0 };
 181
 182         pin = env_get_ulong("ds1_pwr", 16, ~0UL);
 183
 184         if (pin == ~0UL) {
 185                 puts("no pwrpin in dtb/env, cannot powerup display!\n");
 186                 return;
 187         }
 188
 189         for (i = 0; i < 3; i++) {
 190                 if (pin != 0) {
 191                         snprintf(buf, sizeof(buf), "ds1_pwr#%d", i);
 192                         if (gpio_request(pin & 0x7F, buf) != 0) {
 193                                 printf("%s: not able to request gpio %s",
 194                                        __func__, buf);
 195                                 continue;
 196                         }
 197                         swval = pin & 0x80 ? 0 : 1;
 198                         if (on)
 199                                 gpio_direction_output(pin & 0x7F, swval);
 200                         else
 201                                 gpio_direction_output(pin & 0x7F, !swval);
 202
 203                         debug("switched pin %d to %d\n", pin & 0x7F, swval);
 204                 }
 205                 pin >>= 8;
 206         }
 207 }
 208
 209 vidinfo_t       panel_info = {
 210                 .vl_col = 1366, /*
 211                                  * give full resolution for allocating enough
 212                                  * memory
 213                                  */
 214                 .vl_row = 768,
 215                 .vl_bpix = 5,
 216                 .priv = 0
 217 };
 218
 219 void lcd_ctrl_init(void *lcdbase)
 220 {
 221         struct am335x_lcdpanel lcd_panel;
 222
 223         memset(&lcd_panel, 0, sizeof(struct am335x_lcdpanel));
 224         if (load_lcdtiming(&lcd_panel) != 0)
 225                 return;
 226
 227         lcd_panel.panel_power_ctrl = &lcdpower;
 228
 229         if (0 != am335xfb_init(&lcd_panel))
 230                 printf("ERROR: failed to initialize video!");
 231         /*
 232          * modifiy panel info to 'real' resolution, to operate correct with
 233          * lcd-framework.
 234          */
 235         panel_info.vl_col = lcd_panel.hactive;
 236         panel_info.vl_row = lcd_panel.vactive;
 237
 238         lcd_set_flush_dcache(1);
 239 }
 240
 241 void lcd_enable(void)
 242 {
 243         br_summaryscreen();
 244         lcdbacklight(1);
 245 }
 246 #endif /* CONFIG_LCD */
 247
 248 int ft_board_setup(void *blob, bd_t *bd)
 249 {
 250         int nodeoffset;
 251
 252         nodeoffset = fdt_path_offset(blob, "/factory-settings");
 253         if (nodeoffset < 0) {
 254                 printf("%s: cannot find /factory-settings, trying /fset\n",
 255                        __func__);
 256                 nodeoffset = fdt_path_offset(blob, "/fset");
 257                 if (nodeoffset < 0) {
 258                         printf("%s: cannot find /fset.\n", __func__);
 259                         return 0;
 260                 }
 261         }
 262
 263         if (fdt_setprop(blob, nodeoffset, "bl-version",
 264                         PLAIN_VERSION, strlen(PLAIN_VERSION)) != 0) {
 265                 printf("%s: no 'bl-version' prop in fdt!\n", __func__);
 266                 return 0;
 267         }
 268         return 0;
 269 }
 270
 271 int brdefaultip_setup(int bus, int chip)
 272 {
 273         int rc;
 274         struct udevice *i2cdev;
 275         u8 u8buf = 0;
 276         char defip[256] = { 0 };
 277
 278         rc = i2c_get_chip_for_busnum(bus, chip, 2, &i2cdev);
 279         if (rc != 0) {
 280                 printf("WARN: cannot probe baseboard EEPROM!\n");
 281                 return -1;
 282         }
 283
 284         rc = dm_i2c_read(i2cdev, 0, &u8buf, 1);
 285         if (rc != 0) {
 286                 printf("WARN: cannot read baseboard EEPROM!\n");
 287                 return -1;
 288         }
 289
 290         if (u8buf != 0xFF)
 291                 snprintf(defip, sizeof(defip),
 292                          "if test -r ${ipaddr}; then; else setenv ipaddr 192.168.60.%d; setenv serverip 192.168.60.254; setenv gatewayip 192.168.60.254; setenv netmask 255.255.255.0; fi;",
 293                          u8buf);
 294         else
 295                 strncpy(defip,
 296                         "if test -r ${ipaddr}; then; else setenv ipaddr 192.168.60.1; setenv serverip 192.168.60.254; setenv gatewayip 192.168.60.254; setenv netmask 255.255.255.0; fi;",
 297                         sizeof(defip));
 298
 299         env_set("brdefaultip", defip);
 300         env_set_hex("board_id", u8buf);
 301
 302         return 0;
 303 }
 304
 305 int overwrite_console(void)
 306 {
 307         return 1;
 308 }
 309
 310 #if defined(CONFIG_SPL_BUILD) && defined(CONFIG_AM33XX)
 311 #include <asm/arch/hardware.h>
 312 #include <asm/arch/omap.h>
 313 #include <asm/arch/clock.h>
 314 #include <asm/arch/sys_proto.h>
 315 #include <power/tps65217.h>
 316
 317 static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
 318
 319 void pmicsetup(u32 mpupll, unsigned int bus)
 320 {
 321         int mpu_vdd;
 322         int usb_cur_lim;
 323
 324         if (power_tps65217_init(bus)) {
 325                 printf("WARN: cannot setup PMIC 0x24 @ bus #%d, not found!.\n",
 326                        bus);
 327                 return;
 328         }
 329
 330         /* Get the frequency which is defined by device fuses */
 331         dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev);
 332         printf("detected max. frequency: %d - ", dpll_mpu_opp100.m);
 333
 334         if (0 != mpupll) {
 335                 dpll_mpu_opp100.m = mpupll;
 336                 printf("retuning MPU-PLL to: %d MHz.\n", dpll_mpu_opp100.m);
 337         } else {
 338                 puts("ok.\n");
 339         }
 340         /*
 341          * Increase USB current limit to 1300mA or 1800mA and set
 342          * the MPU voltage controller as needed.
 343          */
 344         if (dpll_mpu_opp100.m == MPUPLL_M_1000) {
 345                 usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1800MA;
 346                 mpu_vdd = TPS65217_DCDC_VOLT_SEL_1325MV;
 347         } else {
 348                 usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1300MA;
 349                 mpu_vdd = TPS65217_DCDC_VOLT_SEL_1275MV;
 350         }
 351
 352         if (tps65217_reg_write(TPS65217_PROT_LEVEL_NONE, TPS65217_POWER_PATH,
 353                                usb_cur_lim, TPS65217_USB_INPUT_CUR_LIMIT_MASK))
 354                 puts("tps65217_reg_write failure\n");
 355
 356         /* Set DCDC3 (CORE) voltage to 1.125V */
 357         if (tps65217_voltage_update(TPS65217_DEFDCDC3,
 358                                     TPS65217_DCDC_VOLT_SEL_1125MV)) {
 359                 puts("tps65217_voltage_update failure\n");
 360                 return;
 361         }
 362
 363         /* Set CORE Frequencies to OPP100 */
 364         do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
 365
 366         /* Set DCDC2 (MPU) voltage */
 367         if (tps65217_voltage_update(TPS65217_DEFDCDC2, mpu_vdd)) {
 368                 puts("tps65217_voltage_update failure\n");
 369                 return;
 370         }
 371
 372         /* Set LDO3 to 1.8V */
 373         if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
 374                                TPS65217_DEFLS1,
 375                                TPS65217_LDO_VOLTAGE_OUT_1_8,
 376                                TPS65217_LDO_MASK))
 377                 puts("tps65217_reg_write failure\n");
 378         /* Set LDO4 to 3.3V */
 379         if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
 380                                TPS65217_DEFLS2,
 381                                TPS65217_LDO_VOLTAGE_OUT_3_3,
 382                                TPS65217_LDO_MASK))
 383                 puts("tps65217_reg_write failure\n");
 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         /* Set PWR_EN bit in Status Register */
 388         tps65217_reg_write(TPS65217_PROT_LEVEL_NONE,
 389                            TPS65217_STATUS, TPS65217_PWR_OFF, TPS65217_PWR_OFF);
 390 }
 391
 392 void set_uart_mux_conf(void)
 393 {
 394         enable_uart0_pin_mux();
 395 }
 396
 397 void set_mux_conf_regs(void)
 398 {
 399         enable_board_pin_mux();
 400 }
 401
 402 #endif /* CONFIG_SPL_BUILD && CONFIG_AM33XX */