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) lcdbacklight(int on)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 load_lcdtiming(struct am335x_lcdpanel * panel)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 br_summaryscreen_printenv(char * prefix,char * name,char * altname,char * suffix)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 br_summaryscreen(void)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 lcdpower(int on)181 void lcdpower(int on) 182 { 183 u32 pin, swval, i; 184 char buf[16] = { 0 }; 185 186 pin = env_get_ulong("ds1_pwr", 16, ~0UL); 187 188 if (pin == ~0UL) { 189 puts("no pwrpin in dtb/env, cannot powerup display!\n"); 190 return; 191 } 192 193 for (i = 0; i < 3; i++) { 194 if (pin != 0) { 195 snprintf(buf, sizeof(buf), "ds1_pwr#%d", i); 196 if (gpio_request(pin & 0x7F, buf) != 0) { 197 printf("%s: not able to request gpio %s", 198 __func__, buf); 199 continue; 200 } 201 swval = pin & 0x80 ? 0 : 1; 202 if (on) 203 gpio_direction_output(pin & 0x7F, swval); 204 else 205 gpio_direction_output(pin & 0x7F, !swval); 206 207 debug("switched pin %d to %d\n", pin & 0x7F, swval); 208 } 209 pin >>= 8; 210 } 211 } 212 213 vidinfo_t panel_info = { 214 .vl_col = 1366, /* 215 * give full resolution for allocating enough 216 * memory 217 */ 218 .vl_row = 768, 219 .vl_bpix = 5, 220 .priv = 0 221 }; 222 lcd_ctrl_init(void * lcdbase)223 void lcd_ctrl_init(void *lcdbase) 224 { 225 struct am335x_lcdpanel lcd_panel; 226 227 memset(&lcd_panel, 0, sizeof(struct am335x_lcdpanel)); 228 if (load_lcdtiming(&lcd_panel) != 0) 229 return; 230 231 lcd_panel.panel_power_ctrl = &lcdpower; 232 233 if (0 != am335xfb_init(&lcd_panel)) 234 printf("ERROR: failed to initialize video!"); 235 /* 236 * modifiy panel info to 'real' resolution, to operate correct with 237 * lcd-framework. 238 */ 239 panel_info.vl_col = lcd_panel.hactive; 240 panel_info.vl_row = lcd_panel.vactive; 241 242 lcd_set_flush_dcache(1); 243 } 244 lcd_enable(void)245 void lcd_enable(void) 246 { 247 br_summaryscreen(); 248 lcdbacklight(1); 249 } 250 #endif /* CONFIG_LCD */ 251 ft_board_setup(void * blob,bd_t * bd)252 int ft_board_setup(void *blob, bd_t *bd) 253 { 254 int nodeoffset; 255 256 nodeoffset = fdt_path_offset(blob, "/factory-settings"); 257 if (nodeoffset < 0) { 258 printf("%s: cannot find /factory-settings, trying /fset\n", 259 __func__); 260 nodeoffset = fdt_path_offset(blob, "/fset"); 261 if (nodeoffset < 0) { 262 printf("%s: cannot find /fset.\n", __func__); 263 return 0; 264 } 265 } 266 267 if (fdt_setprop(blob, nodeoffset, "bl-version", 268 PLAIN_VERSION, strlen(PLAIN_VERSION)) != 0) { 269 printf("%s: no 'bl-version' prop in fdt!\n", __func__); 270 return 0; 271 } 272 return 0; 273 } 274 275 #ifdef CONFIG_SPL_BUILD 276 277 static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE; 278 pmicsetup(u32 mpupll,unsigned int bus)279 void pmicsetup(u32 mpupll, unsigned int bus) 280 { 281 int mpu_vdd; 282 int usb_cur_lim; 283 284 if (power_tps65217_init(bus)) { 285 printf("WARN: cannot setup PMIC 0x24 @ bus #%d, not found!.\n", 286 bus); 287 return; 288 } 289 290 /* Get the frequency which is defined by device fuses */ 291 dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev); 292 printf("detected max. frequency: %d - ", dpll_mpu_opp100.m); 293 294 if (0 != mpupll) { 295 dpll_mpu_opp100.m = mpupll; 296 printf("retuning MPU-PLL to: %d MHz.\n", dpll_mpu_opp100.m); 297 } else { 298 puts("ok.\n"); 299 } 300 /* 301 * Increase USB current limit to 1300mA or 1800mA and set 302 * the MPU voltage controller as needed. 303 */ 304 if (dpll_mpu_opp100.m == MPUPLL_M_1000) { 305 usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1800MA; 306 mpu_vdd = TPS65217_DCDC_VOLT_SEL_1325MV; 307 } else { 308 usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1300MA; 309 mpu_vdd = TPS65217_DCDC_VOLT_SEL_1275MV; 310 } 311 312 if (tps65217_reg_write(TPS65217_PROT_LEVEL_NONE, TPS65217_POWER_PATH, 313 usb_cur_lim, TPS65217_USB_INPUT_CUR_LIMIT_MASK)) 314 puts("tps65217_reg_write failure\n"); 315 316 /* Set DCDC3 (CORE) voltage to 1.125V */ 317 if (tps65217_voltage_update(TPS65217_DEFDCDC3, 318 TPS65217_DCDC_VOLT_SEL_1125MV)) { 319 puts("tps65217_voltage_update failure\n"); 320 return; 321 } 322 323 /* Set CORE Frequencies to OPP100 */ 324 do_setup_dpll(&dpll_core_regs, &dpll_core_opp100); 325 326 /* Set DCDC2 (MPU) voltage */ 327 if (tps65217_voltage_update(TPS65217_DEFDCDC2, mpu_vdd)) { 328 puts("tps65217_voltage_update failure\n"); 329 return; 330 } 331 332 /* Set LDO3 to 1.8V */ 333 if (tps65217_reg_write(TPS65217_PROT_LEVEL_2, 334 TPS65217_DEFLS1, 335 TPS65217_LDO_VOLTAGE_OUT_1_8, 336 TPS65217_LDO_MASK)) 337 puts("tps65217_reg_write failure\n"); 338 /* Set LDO4 to 3.3V */ 339 if (tps65217_reg_write(TPS65217_PROT_LEVEL_2, 340 TPS65217_DEFLS2, 341 TPS65217_LDO_VOLTAGE_OUT_3_3, 342 TPS65217_LDO_MASK)) 343 puts("tps65217_reg_write failure\n"); 344 345 /* Set MPU Frequency to what we detected now that voltages are set */ 346 do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100); 347 /* Set PWR_EN bit in Status Register */ 348 tps65217_reg_write(TPS65217_PROT_LEVEL_NONE, 349 TPS65217_STATUS, TPS65217_PWR_OFF, TPS65217_PWR_OFF); 350 } 351 set_uart_mux_conf(void)352 void set_uart_mux_conf(void) 353 { 354 enable_uart0_pin_mux(); 355 } 356 set_mux_conf_regs(void)357 void set_mux_conf_regs(void) 358 { 359 enable_board_pin_mux(); 360 } 361 362 #endif /* CONFIG_SPL_BUILD */ 363 overwrite_console(void)364 int overwrite_console(void) 365 { 366 return 1; 367 } 368