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