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) 273 { 274 int mpu_vdd; 275 int usb_cur_lim; 276 277 if (i2c_probe(TPS65217_CHIP_PM)) { 278 puts("PMIC (0x24) not found! skip further initalization.\n"); 279 return; 280 } 281 282 /* Get the frequency which is defined by device fuses */ 283 dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev); 284 printf("detected max. frequency: %d - ", dpll_mpu_opp100.m); 285 286 if (0 != mpupll) { 287 dpll_mpu_opp100.m = mpupll; 288 printf("retuning MPU-PLL to: %d MHz.\n", dpll_mpu_opp100.m); 289 } else { 290 puts("ok.\n"); 291 } 292 /* 293 * Increase USB current limit to 1300mA or 1800mA and set 294 * the MPU voltage controller as needed. 295 */ 296 if (dpll_mpu_opp100.m == MPUPLL_M_1000) { 297 usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1800MA; 298 mpu_vdd = TPS65217_DCDC_VOLT_SEL_1325MV; 299 } else { 300 usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1300MA; 301 mpu_vdd = TPS65217_DCDC_VOLT_SEL_1275MV; 302 } 303 304 if (tps65217_reg_write(TPS65217_PROT_LEVEL_NONE, TPS65217_POWER_PATH, 305 usb_cur_lim, TPS65217_USB_INPUT_CUR_LIMIT_MASK)) 306 puts("tps65217_reg_write failure\n"); 307 308 /* Set DCDC3 (CORE) voltage to 1.125V */ 309 if (tps65217_voltage_update(TPS65217_DEFDCDC3, 310 TPS65217_DCDC_VOLT_SEL_1125MV)) { 311 puts("tps65217_voltage_update failure\n"); 312 return; 313 } 314 315 /* Set CORE Frequencies to OPP100 */ 316 do_setup_dpll(&dpll_core_regs, &dpll_core_opp100); 317 318 /* Set DCDC2 (MPU) voltage */ 319 if (tps65217_voltage_update(TPS65217_DEFDCDC2, mpu_vdd)) { 320 puts("tps65217_voltage_update failure\n"); 321 return; 322 } 323 324 /* Set LDO3 to 1.8V */ 325 if (tps65217_reg_write(TPS65217_PROT_LEVEL_2, 326 TPS65217_DEFLS1, 327 TPS65217_LDO_VOLTAGE_OUT_1_8, 328 TPS65217_LDO_MASK)) 329 puts("tps65217_reg_write failure\n"); 330 /* Set LDO4 to 3.3V */ 331 if (tps65217_reg_write(TPS65217_PROT_LEVEL_2, 332 TPS65217_DEFLS2, 333 TPS65217_LDO_VOLTAGE_OUT_3_3, 334 TPS65217_LDO_MASK)) 335 puts("tps65217_reg_write failure\n"); 336 337 /* Set MPU Frequency to what we detected now that voltages are set */ 338 do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100); 339 /* Set PWR_EN bit in Status Register */ 340 tps65217_reg_write(TPS65217_PROT_LEVEL_NONE, 341 TPS65217_STATUS, TPS65217_PWR_OFF, TPS65217_PWR_OFF); 342 } 343 344 void set_uart_mux_conf(void) 345 { 346 enable_uart0_pin_mux(); 347 } 348 349 void set_mux_conf_regs(void) 350 { 351 enable_board_pin_mux(); 352 } 353 354 #endif /* CONFIG_SPL_BUILD */ 355 356 int overwrite_console(void) 357 { 358 return 1; 359 } 360