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