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 <version.h>
  12 #include <common.h>
  13 #include <environment.h>
  14 #include <errno.h>
  15 #include <asm/arch/cpu.h>
  16 #include <asm/arch/hardware.h>
  17 #include <asm/arch/omap.h>
  18 #include <asm/arch/clock.h>
  19 #include <asm/arch/gpio.h>
  20 #include <asm/arch/sys_proto.h>
  21 #include <asm/arch/mmc_host_def.h>
  22 #include <asm/io.h>
  23 #include <asm/gpio.h>
  24 #include <i2c.h>
  25 #include <miiphy.h>
  26 #include <cpsw.h>
  27 #include <power/tps65217.h>
  28 #include <lcd.h>
  29 #include "bur_common.h"
  30 #include "../../../drivers/video/am335x-fb.h"
  31 #include <fdt_simplefb.h>
  32
  33 static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
  34
  35 DECLARE_GLOBAL_DATA_PTR;
  36
  37 /* --------------------------------------------------------------------------*/
  38 #if defined(CONFIG_LCD) && defined(CONFIG_AM335X_LCD) && \
  39         !defined(CONFIG_SPL_BUILD)
  40 void lcdbacklight(int on)
  41 {
  42         unsigned int driver = env_get_ulong("ds1_bright_drv", 16, 0UL);
  43         unsigned int bright = env_get_ulong("ds1_bright_def", 10, 50);
  44         unsigned int pwmfrq = env_get_ulong("ds1_pwmfreq", 10, ~0UL);
  45         unsigned int tmp;
  46         struct gptimer *timerhw;
  47
  48         if (on)
  49                 bright = bright != ~0UL ? bright : 50;
  50         else
  51                 bright = 0;
  52
  53         switch (driver) {
  54         case 2:
  55                 timerhw = (struct gptimer *)DM_TIMER5_BASE;
  56                 break;
  57         default:
  58                 timerhw = (struct gptimer *)DM_TIMER6_BASE;
  59         }
  60
  61         switch (driver) {
  62         case 0: /* PMIC LED-Driver */
  63                 /* brightness level */
  64                 tps65217_reg_write(TPS65217_PROT_LEVEL_NONE,
  65                                    TPS65217_WLEDCTRL2, bright, 0xFF);
  66                 /* current sink */
  67                 tps65217_reg_write(TPS65217_PROT_LEVEL_NONE,
  68                                    TPS65217_WLEDCTRL1,
  69                                    bright != 0 ? 0x0A : 0x02,
  70                                    0xFF);
  71                 break;
  72         case 1:
  73         case 2: /* PWM using timer */
  74                 if (pwmfrq != ~0UL) {
  75                         timerhw->tiocp_cfg = TCFG_RESET;
  76                         udelay(10);
  77                         while (timerhw->tiocp_cfg & TCFG_RESET)
  78                                 ;
  79                         tmp = ~0UL-(V_OSCK/pwmfrq);     /* bottom value */
  80                         timerhw->tldr = tmp;
  81                         timerhw->tcrr = tmp;
  82                         tmp = tmp + ((V_OSCK/pwmfrq)/100) * bright;
  83                         timerhw->tmar = tmp;
  84                         timerhw->tclr = (TCLR_PT | (2 << TCLR_TRG_SHIFT) |
  85                                         TCLR_CE | TCLR_AR | TCLR_ST);
  86                 } else {
  87                         puts("invalid pwmfrq in env/dtb! skip PWM-setup.\n");
  88                 }
  89                 break;
  90         default:
  91                 puts("no suitable backlightdriver in env/dtb!\n");
  92                 break;
  93         }
  94 }
  95
  96 int load_lcdtiming(struct am335x_lcdpanel *panel)
  97 {
  98         struct am335x_lcdpanel pnltmp;
  99
 100         pnltmp.hactive = env_get_ulong("ds1_hactive", 10, ~0UL);
 101         pnltmp.vactive = env_get_ulong("ds1_vactive", 10, ~0UL);
 102         pnltmp.bpp = env_get_ulong("ds1_bpp", 10, ~0UL);
 103         pnltmp.hfp = env_get_ulong("ds1_hfp", 10, ~0UL);
 104         pnltmp.hbp = env_get_ulong("ds1_hbp", 10, ~0UL);
 105         pnltmp.hsw = env_get_ulong("ds1_hsw", 10, ~0UL);
 106         pnltmp.vfp = env_get_ulong("ds1_vfp", 10, ~0UL);
 107         pnltmp.vbp = env_get_ulong("ds1_vbp", 10, ~0UL);
 108         pnltmp.vsw = env_get_ulong("ds1_vsw", 10, ~0UL);
 109         pnltmp.pxl_clk = env_get_ulong("ds1_pxlclk", 10, ~0UL);
 110         pnltmp.pol = env_get_ulong("ds1_pol", 16, ~0UL);
 111         pnltmp.pup_delay = env_get_ulong("ds1_pupdelay", 10, ~0UL);
 112         pnltmp.pon_delay = env_get_ulong("ds1_tondelay", 10, ~0UL);
 113         panel_info.vl_rot = env_get_ulong("ds1_rotation", 10, 0);
 114
 115         if (
 116            ~0UL == (pnltmp.hactive) ||
 117            ~0UL == (pnltmp.vactive) ||
 118            ~0UL == (pnltmp.bpp) ||
 119            ~0UL == (pnltmp.hfp) ||
 120            ~0UL == (pnltmp.hbp) ||
 121            ~0UL == (pnltmp.hsw) ||
 122            ~0UL == (pnltmp.vfp) ||
 123            ~0UL == (pnltmp.vbp) ||
 124            ~0UL == (pnltmp.vsw) ||
 125            ~0UL == (pnltmp.pxl_clk) ||
 126            ~0UL == (pnltmp.pol) ||
 127            ~0UL == (pnltmp.pup_delay) ||
 128            ~0UL == (pnltmp.pon_delay)
 129            ) {
 130                 puts("lcd-settings in env/dtb incomplete!\n");
 131                 printf("display-timings:\n"
 132                         "================\n"
 133                         "hactive: %d\n"
 134                         "vactive: %d\n"
 135                         "bpp    : %d\n"
 136                         "hfp    : %d\n"
 137                         "hbp    : %d\n"
 138                         "hsw    : %d\n"
 139                         "vfp    : %d\n"
 140                         "vbp    : %d\n"
 141                         "vsw    : %d\n"
 142                         "pxlclk : %d\n"
 143                         "pol    : 0x%08x\n"
 144                         "pondly : %d\n",
 145                         pnltmp.hactive, pnltmp.vactive, pnltmp.bpp,
 146                         pnltmp.hfp, pnltmp.hbp, pnltmp.hsw,
 147                         pnltmp.vfp, pnltmp.vbp, pnltmp.vsw,
 148                         pnltmp.pxl_clk, pnltmp.pol, pnltmp.pon_delay);
 149
 150                 return -1;
 151         }
 152         debug("lcd-settings in env complete, taking over.\n");
 153         memcpy((void *)panel,
 154                (void *)&pnltmp,
 155                sizeof(struct am335x_lcdpanel));
 156
 157         return 0;
 158 }
 159
 160 int ft_board_setup(void *blob, bd_t *bd)
 161 {
 162         int nodeoffset;
 163
 164         nodeoffset = fdt_path_offset(blob, "/factory-settings");
 165         if (nodeoffset < 0) {
 166                 puts("set bootloader version 'factory-settings' not in dtb!\n");
 167                 return -1;
 168         }
 169         if (fdt_setprop(blob, nodeoffset, "bl-version",
 170                         PLAIN_VERSION, strlen(PLAIN_VERSION)) != 0) {
 171                 puts("set bootloader version 'bl-version' prop. not in dtb!\n");
 172                 return -1;
 173         }
 174         /*
 175          * if no simplefb is requested through environment, we don't set up
 176          * one, instead we turn off backlight.
 177          */
 178         if (env_get_ulong("simplefb", 10, 0) == 0) {
 179                 lcdbacklight(0);
 180                 return 0;
 181         }
 182         /* Setup simplefb devicetree node, also adapt memory-node,
 183          * upper limit for kernel e.g. linux is memtop-framebuffer alligned
 184          * to a full megabyte.
 185          */
 186         u64 start = gd->bd->bi_dram[0].start;
 187         u64 size = (gd->fb_base - start) & ~0xFFFFF;
 188         int rc = fdt_fixup_memory_banks(blob, &start, &size, 1);
 189
 190         if (rc) {
 191                 puts("cannot setup simplefb: Error reserving memory!\n");
 192                 return rc;
 193         }
 194         rc = lcd_dt_simplefb_enable_existing_node(blob);
 195         if (rc) {
 196                 puts("cannot setup simplefb: error enabling simplefb node!\n");
 197                 return rc;
 198         }
 199
 200         return 0;
 201 }
 202
 203 static void br_summaryscreen_printenv(char *prefix,
 204                                        char *name, char *altname,
 205                                        char *suffix)
 206 {
 207         char *envval = env_get(name);
 208         if (0 != envval) {
 209                 lcd_printf("%s %s %s", prefix, envval, suffix);
 210         } else if (0 != altname) {
 211                 envval = env_get(altname);
 212                 if (0 != envval)
 213                         lcd_printf("%s %s %s", prefix, envval, suffix);
 214         } else {
 215                 lcd_printf("\n");
 216         }
 217 }
 218
 219 void br_summaryscreen(void)
 220 {
 221         br_summaryscreen_printenv(" - B&R -", "br_orderno", 0, "-\n");
 222         br_summaryscreen_printenv(" Serial/Rev :", "br_serial", 0, "\n");
 223         br_summaryscreen_printenv(" MAC (IF1)  :", "br_mac1", "ethaddr", "\n");
 224         br_summaryscreen_printenv(" MAC (IF2)  :", "br_mac2", 0, "\n");
 225         lcd_puts(" Bootloader : " PLAIN_VERSION "\n");
 226         lcd_puts("\n");
 227 }
 228
 229 void lcdpower(int on)
 230 {
 231         u32 pin, swval, i;
 232
 233         pin = env_get_ulong("ds1_pwr", 16, ~0UL);
 234
 235         if (pin == ~0UL) {
 236                 puts("no pwrpin in dtb/env, cannot powerup display!\n");
 237                 return;
 238         }
 239
 240         for (i = 0; i < 3; i++) {
 241                 if (pin != 0) {
 242                         swval = pin & 0x80 ? 0 : 1;
 243                         if (on)
 244                                 gpio_direction_output(pin & 0x7F, swval);
 245                         else
 246                                 gpio_direction_output(pin & 0x7F, !swval);
 247
 248                         debug("switched pin %d to %d\n", pin & 0x7F, swval);
 249                 }
 250                 pin >>= 8;
 251         }
 252 }
 253
 254 vidinfo_t       panel_info = {
 255                 .vl_col = 1366, /*
 256                                  * give full resolution for allocating enough
 257                                  * memory
 258                                  */
 259                 .vl_row = 768,
 260                 .vl_bpix = 5,
 261                 .priv = 0
 262 };
 263
 264 void lcd_ctrl_init(void *lcdbase)
 265 {
 266         struct am335x_lcdpanel lcd_panel;
 267
 268         memset(&lcd_panel, 0, sizeof(struct am335x_lcdpanel));
 269         if (load_lcdtiming(&lcd_panel) != 0)
 270                 return;
 271
 272         lcd_panel.panel_power_ctrl = &lcdpower;
 273
 274         if (0 != am335xfb_init(&lcd_panel))
 275                 printf("ERROR: failed to initialize video!");
 276         /*
 277          * modifiy panel info to 'real' resolution, to operate correct with
 278          * lcd-framework.
 279          */
 280         panel_info.vl_col = lcd_panel.hactive;
 281         panel_info.vl_row = lcd_panel.vactive;
 282
 283         lcd_set_flush_dcache(1);
 284 }
 285
 286 void lcd_enable(void)
 287 {
 288         br_summaryscreen();
 289         lcdbacklight(1);
 290 }
 291 #elif CONFIG_SPL_BUILD
 292 #else
 293 #error "LCD-support with a suitable FB-Driver is mandatory !"
 294 #endif /* CONFIG_LCD */
 295
 296 #ifdef CONFIG_SPL_BUILD
 297 void pmicsetup(u32 mpupll)
 298 {
 299         int mpu_vdd;
 300         int usb_cur_lim;
 301
 302         if (i2c_probe(TPS65217_CHIP_PM)) {
 303                 puts("PMIC (0x24) not found! skip further initalization.\n");
 304                 return;
 305         }
 306
 307         /* Get the frequency which is defined by device fuses */
 308         dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev);
 309         printf("detected max. frequency: %d - ", dpll_mpu_opp100.m);
 310
 311         if (0 != mpupll) {
 312                 dpll_mpu_opp100.m = MPUPLL_M_1000;
 313                 printf("retuning MPU-PLL to: %d MHz.\n", dpll_mpu_opp100.m);
 314         } else {
 315                 puts("ok.\n");
 316         }
 317         /*
 318          * Increase USB current limit to 1300mA or 1800mA and set
 319          * the MPU voltage controller as needed.
 320          */
 321         if (dpll_mpu_opp100.m == MPUPLL_M_1000) {
 322                 usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1800MA;
 323                 mpu_vdd = TPS65217_DCDC_VOLT_SEL_1325MV;
 324         } else {
 325                 usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1300MA;
 326                 mpu_vdd = TPS65217_DCDC_VOLT_SEL_1275MV;
 327         }
 328
 329         if (tps65217_reg_write(TPS65217_PROT_LEVEL_NONE, TPS65217_POWER_PATH,
 330                                usb_cur_lim, TPS65217_USB_INPUT_CUR_LIMIT_MASK))
 331                 puts("tps65217_reg_write failure\n");
 332
 333         /* Set DCDC3 (CORE) voltage to 1.125V */
 334         if (tps65217_voltage_update(TPS65217_DEFDCDC3,
 335                                     TPS65217_DCDC_VOLT_SEL_1125MV)) {
 336                 puts("tps65217_voltage_update failure\n");
 337                 return;
 338         }
 339
 340         /* Set CORE Frequencies to OPP100 */
 341         do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
 342
 343         /* Set DCDC2 (MPU) voltage */
 344         if (tps65217_voltage_update(TPS65217_DEFDCDC2, mpu_vdd)) {
 345                 puts("tps65217_voltage_update failure\n");
 346                 return;
 347         }
 348
 349         /* Set LDO3 to 1.8V */
 350         if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
 351                                TPS65217_DEFLS1,
 352                                TPS65217_LDO_VOLTAGE_OUT_1_8,
 353                                TPS65217_LDO_MASK))
 354                 puts("tps65217_reg_write failure\n");
 355         /* Set LDO4 to 3.3V */
 356         if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
 357                                TPS65217_DEFLS2,
 358                                TPS65217_LDO_VOLTAGE_OUT_3_3,
 359                                TPS65217_LDO_MASK))
 360                 puts("tps65217_reg_write failure\n");
 361
 362         /* Set MPU Frequency to what we detected now that voltages are set */
 363         do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100);
 364         /* Set PWR_EN bit in Status Register */
 365         tps65217_reg_write(TPS65217_PROT_LEVEL_NONE,
 366                            TPS65217_STATUS, TPS65217_PWR_OFF, TPS65217_PWR_OFF);
 367 }
 368
 369 void set_uart_mux_conf(void)
 370 {
 371         enable_uart0_pin_mux();
 372 }
 373
 374 void set_mux_conf_regs(void)
 375 {
 376         enable_board_pin_mux();
 377 }
 378
 379 #endif /* CONFIG_SPL_BUILD */
 380
 381 #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
 382         (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD))
 383 static void cpsw_control(int enabled)
 384 {
 385         /* VTP can be added here */
 386         return;
 387 }
 388
 389 /* describing port offsets of TI's CPSW block */
 390 static struct cpsw_slave_data cpsw_slaves[] = {
 391         {
 392                 .slave_reg_ofs  = 0x208,
 393                 .sliver_reg_ofs = 0xd80,
 394                 .phy_addr       = 1,
 395         },
 396         {
 397                 .slave_reg_ofs  = 0x308,
 398                 .sliver_reg_ofs = 0xdc0,
 399                 .phy_addr       = 2,
 400         },
 401 };
 402
 403 static struct cpsw_platform_data cpsw_data = {
 404         .mdio_base              = CPSW_MDIO_BASE,
 405         .cpsw_base              = CPSW_BASE,
 406         .mdio_div               = 0xff,
 407         .channels               = 8,
 408         .cpdma_reg_ofs          = 0x800,
 409         .slaves                 = 1,
 410         .slave_data             = cpsw_slaves,
 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 /* CONFIG_DRIVER_TI_CPSW, ... */
 422
 423 #if defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)
 424 int board_eth_init(bd_t *bis)
 425 {
 426         int rv = 0;
 427         char mac_addr[6];
 428         const char *mac = 0;
 429         uint32_t mac_hi, mac_lo;
 430         /* try reading mac address from efuse */
 431         mac_lo = readl(&cdev->macid0l);
 432         mac_hi = readl(&cdev->macid0h);
 433         mac_addr[0] = mac_hi & 0xFF;
 434         mac_addr[1] = (mac_hi & 0xFF00) >> 8;
 435         mac_addr[2] = (mac_hi & 0xFF0000) >> 16;
 436         mac_addr[3] = (mac_hi & 0xFF000000) >> 24;
 437         mac_addr[4] = mac_lo & 0xFF;
 438         mac_addr[5] = (mac_lo & 0xFF00) >> 8;
 439
 440         if (!env_get("ethaddr")) {
 441                 if (!mac) {
 442                         printf("<ethaddr> not set. validating E-fuse MAC ... ");
 443                         if (is_valid_ethaddr((const u8 *)mac_addr))
 444                                 mac = (const char *)mac_addr;
 445                 }
 446
 447                 if (mac) {
 448                         printf("using: %pM on ", mac);
 449                         eth_env_set_enetaddr("ethaddr", (const u8 *)mac);
 450                 }
 451         }
 452         writel(MII_MODE_ENABLE, &cdev->miisel);
 453         cpsw_slaves[0].phy_if = PHY_INTERFACE_MODE_MII;
 454         cpsw_slaves[1].phy_if = PHY_INTERFACE_MODE_MII;
 455
 456         rv = cpsw_register(&cpsw_data);
 457         if (rv < 0) {
 458                 printf("Error %d registering CPSW switch\n", rv);
 459                 return 0;
 460         }
 461         return rv;
 462 }
 463 #endif /* defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD) */
 464 #if defined(CONFIG_MMC)
 465 int board_mmc_init(bd_t *bis)
 466 {
 467         int rc = 0;
 468
 469         rc |= omap_mmc_init(0, 0, 0, -1, -1);
 470         rc |= omap_mmc_init(1, 0, 0, -1, -1);
 471
 472         return rc;
 473 }
 474 #endif
 475 int overwrite_console(void)
 476 {
 477         return 1;
 478 }