1 // SPDX-License-Identifier: GPL-2.0+
5 * common board functions for B&R boards
7 * Copyright (C) 2013 Hannes Schmelzer <oe5hpm@oevsv.at>
8 * Bernecker & Rainer Industrieelektronik GmbH - http://www.br-automation.com
18 #include <linux/delay.h>
19 #include "bur_common.h"
21 DECLARE_GLOBAL_DATA_PTR;
23 /* --------------------------------------------------------------------------*/
24 #if defined(CONFIG_LCD) && defined(CONFIG_AM335X_LCD) && \
25 !defined(CONFIG_DM_VIDEO) && !defined(CONFIG_SPL_BUILD)
26 #include <asm/arch/hardware.h>
27 #include <asm/arch/cpu.h>
29 #include <power/tps65217.h>
30 #include "../../../drivers/video/am335x-fb.h"
32 void lcdbacklight(int on)
34 unsigned int driver = env_get_ulong("ds1_bright_drv", 16, 0UL);
35 unsigned int bright = env_get_ulong("ds1_bright_def", 10, 50);
36 unsigned int pwmfrq = env_get_ulong("ds1_pwmfreq", 10, ~0UL);
38 struct gptimer *timerhw;
41 bright = bright != ~0UL ? bright : 50;
47 timerhw = (struct gptimer *)DM_TIMER5_BASE;
50 timerhw = (struct gptimer *)DM_TIMER6_BASE;
54 case 0: /* PMIC LED-Driver */
55 /* brightness level */
56 tps65217_reg_write(TPS65217_PROT_LEVEL_NONE,
57 TPS65217_WLEDCTRL2, bright, 0xFF);
59 tps65217_reg_write(TPS65217_PROT_LEVEL_NONE,
61 bright != 0 ? 0x0A : 0x02,
65 case 2: /* PWM using timer */
67 timerhw->tiocp_cfg = TCFG_RESET;
69 while (timerhw->tiocp_cfg & TCFG_RESET)
71 tmp = ~0UL-(V_OSCK/pwmfrq); /* bottom value */
74 tmp = tmp + ((V_OSCK/pwmfrq)/100) * bright;
76 timerhw->tclr = (TCLR_PT | (2 << TCLR_TRG_SHIFT) |
77 TCLR_CE | TCLR_AR | TCLR_ST);
79 puts("invalid pwmfrq in env/dtb! skip PWM-setup.\n");
83 puts("no suitable backlightdriver in env/dtb!\n");
88 int load_lcdtiming(struct am335x_lcdpanel *panel)
90 struct am335x_lcdpanel pnltmp;
92 pnltmp.hactive = env_get_ulong("ds1_hactive", 10, ~0UL);
93 pnltmp.vactive = env_get_ulong("ds1_vactive", 10, ~0UL);
94 pnltmp.bpp = env_get_ulong("ds1_bpp", 10, ~0UL);
95 pnltmp.hfp = env_get_ulong("ds1_hfp", 10, ~0UL);
96 pnltmp.hbp = env_get_ulong("ds1_hbp", 10, ~0UL);
97 pnltmp.hsw = env_get_ulong("ds1_hsw", 10, ~0UL);
98 pnltmp.vfp = env_get_ulong("ds1_vfp", 10, ~0UL);
99 pnltmp.vbp = env_get_ulong("ds1_vbp", 10, ~0UL);
100 pnltmp.vsw = env_get_ulong("ds1_vsw", 10, ~0UL);
101 pnltmp.pxl_clk = env_get_ulong("ds1_pxlclk", 10, ~0UL);
102 pnltmp.pol = env_get_ulong("ds1_pol", 16, ~0UL);
103 pnltmp.pup_delay = env_get_ulong("ds1_pupdelay", 10, ~0UL);
104 pnltmp.pon_delay = env_get_ulong("ds1_tondelay", 10, ~0UL);
105 panel_info.vl_rot = env_get_ulong("ds1_rotation", 10, 0);
108 ~0UL == (pnltmp.hactive) ||
109 ~0UL == (pnltmp.vactive) ||
110 ~0UL == (pnltmp.bpp) ||
111 ~0UL == (pnltmp.hfp) ||
112 ~0UL == (pnltmp.hbp) ||
113 ~0UL == (pnltmp.hsw) ||
114 ~0UL == (pnltmp.vfp) ||
115 ~0UL == (pnltmp.vbp) ||
116 ~0UL == (pnltmp.vsw) ||
117 ~0UL == (pnltmp.pxl_clk) ||
118 ~0UL == (pnltmp.pol) ||
119 ~0UL == (pnltmp.pup_delay) ||
120 ~0UL == (pnltmp.pon_delay)
122 puts("lcd-settings in env/dtb incomplete!\n");
123 printf("display-timings:\n"
137 pnltmp.hactive, pnltmp.vactive, pnltmp.bpp,
138 pnltmp.hfp, pnltmp.hbp, pnltmp.hsw,
139 pnltmp.vfp, pnltmp.vbp, pnltmp.vsw,
140 pnltmp.pxl_clk, pnltmp.pol, pnltmp.pon_delay);
144 debug("lcd-settings in env complete, taking over.\n");
145 memcpy((void *)panel,
147 sizeof(struct am335x_lcdpanel));
152 static void br_summaryscreen_printenv(char *prefix,
153 char *name, char *altname,
156 char *envval = env_get(name);
158 lcd_printf("%s %s %s", prefix, envval, suffix);
159 } else if (0 != altname) {
160 envval = env_get(altname);
162 lcd_printf("%s %s %s", prefix, envval, suffix);
168 void br_summaryscreen(void)
170 br_summaryscreen_printenv(" - B&R -", "br_orderno", 0, "-\n");
171 br_summaryscreen_printenv(" Serial/Rev :", "br_serial", 0, "\n");
172 br_summaryscreen_printenv(" MAC1 :", "br_mac1", "ethaddr", "\n");
173 br_summaryscreen_printenv(" MAC2 :", "br_mac2", 0, "\n");
174 lcd_puts(" Bootloader : " PLAIN_VERSION "\n");
178 void lcdpower(int on)
181 char buf[16] = { 0 };
183 pin = env_get_ulong("ds1_pwr", 16, ~0UL);
186 puts("no pwrpin in dtb/env, cannot powerup display!\n");
190 for (i = 0; i < 3; i++) {
192 snprintf(buf, sizeof(buf), "ds1_pwr#%d", i);
193 if (gpio_request(pin & 0x7F, buf) != 0) {
194 printf("%s: not able to request gpio %s",
198 swval = pin & 0x80 ? 0 : 1;
200 gpio_direction_output(pin & 0x7F, swval);
202 gpio_direction_output(pin & 0x7F, !swval);
204 debug("switched pin %d to %d\n", pin & 0x7F, swval);
210 vidinfo_t panel_info = {
212 * give full resolution for allocating enough
220 void lcd_ctrl_init(void *lcdbase)
222 struct am335x_lcdpanel lcd_panel;
224 memset(&lcd_panel, 0, sizeof(struct am335x_lcdpanel));
225 if (load_lcdtiming(&lcd_panel) != 0)
228 lcd_panel.panel_power_ctrl = &lcdpower;
230 if (0 != am335xfb_init(&lcd_panel))
231 printf("ERROR: failed to initialize video!");
233 * modifiy panel info to 'real' resolution, to operate correct with
236 panel_info.vl_col = lcd_panel.hactive;
237 panel_info.vl_row = lcd_panel.vactive;
239 lcd_set_flush_dcache(1);
242 void lcd_enable(void)
247 #endif /* CONFIG_LCD */
249 int ft_board_setup(void *blob, bd_t *bd)
253 nodeoffset = fdt_path_offset(blob, "/factory-settings");
254 if (nodeoffset < 0) {
255 printf("%s: cannot find /factory-settings, trying /fset\n",
257 nodeoffset = fdt_path_offset(blob, "/fset");
258 if (nodeoffset < 0) {
259 printf("%s: cannot find /fset.\n", __func__);
264 if (fdt_setprop(blob, nodeoffset, "bl-version",
265 PLAIN_VERSION, strlen(PLAIN_VERSION)) != 0) {
266 printf("%s: no 'bl-version' prop in fdt!\n", __func__);
272 int brdefaultip_setup(int bus, int chip)
275 struct udevice *i2cdev;
277 char defip[256] = { 0 };
279 rc = i2c_get_chip_for_busnum(bus, chip, 2, &i2cdev);
281 printf("WARN: cannot probe baseboard EEPROM!\n");
285 rc = dm_i2c_read(i2cdev, 0, &u8buf, 1);
287 printf("WARN: cannot read baseboard EEPROM!\n");
292 snprintf(defip, sizeof(defip),
293 "if test -r ${ipaddr}; then; else setenv ipaddr 192.168.60.%d; setenv serverip 192.168.60.254; setenv gatewayip 192.168.60.254; setenv netmask 255.255.255.0; fi;",
297 "if test -r ${ipaddr}; then; else setenv ipaddr 192.168.60.1; setenv serverip 192.168.60.254; setenv gatewayip 192.168.60.254; setenv netmask 255.255.255.0; fi;",
300 env_set("brdefaultip", defip);
301 env_set_hex("board_id", u8buf);
306 int overwrite_console(void)
311 #if defined(CONFIG_SPL_BUILD) && defined(CONFIG_AM33XX)
312 #include <asm/arch/hardware.h>
313 #include <asm/arch/omap.h>
314 #include <asm/arch/clock.h>
315 #include <asm/arch/sys_proto.h>
316 #include <power/tps65217.h>
318 static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
320 void pmicsetup(u32 mpupll, unsigned int bus)
325 if (power_tps65217_init(bus)) {
326 printf("WARN: cannot setup PMIC 0x24 @ bus #%d, not found!.\n",
331 /* Get the frequency which is defined by device fuses */
332 dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev);
333 printf("detected max. frequency: %d - ", dpll_mpu_opp100.m);
336 dpll_mpu_opp100.m = mpupll;
337 printf("retuning MPU-PLL to: %d MHz.\n", dpll_mpu_opp100.m);
342 * Increase USB current limit to 1300mA or 1800mA and set
343 * the MPU voltage controller as needed.
345 if (dpll_mpu_opp100.m == MPUPLL_M_1000) {
346 usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1800MA;
347 mpu_vdd = TPS65217_DCDC_VOLT_SEL_1325MV;
349 usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1300MA;
350 mpu_vdd = TPS65217_DCDC_VOLT_SEL_1275MV;
353 if (tps65217_reg_write(TPS65217_PROT_LEVEL_NONE, TPS65217_POWER_PATH,
354 usb_cur_lim, TPS65217_USB_INPUT_CUR_LIMIT_MASK))
355 puts("tps65217_reg_write failure\n");
357 /* Set DCDC3 (CORE) voltage to 1.125V */
358 if (tps65217_voltage_update(TPS65217_DEFDCDC3,
359 TPS65217_DCDC_VOLT_SEL_1125MV)) {
360 puts("tps65217_voltage_update failure\n");
364 /* Set CORE Frequencies to OPP100 */
365 do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
367 /* Set DCDC2 (MPU) voltage */
368 if (tps65217_voltage_update(TPS65217_DEFDCDC2, mpu_vdd)) {
369 puts("tps65217_voltage_update failure\n");
373 /* Set LDO3 to 1.8V */
374 if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
376 TPS65217_LDO_VOLTAGE_OUT_1_8,
378 puts("tps65217_reg_write failure\n");
379 /* Set LDO4 to 3.3V */
380 if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
382 TPS65217_LDO_VOLTAGE_OUT_3_3,
384 puts("tps65217_reg_write failure\n");
386 /* Set MPU Frequency to what we detected now that voltages are set */
387 do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100);
388 /* Set PWR_EN bit in Status Register */
389 tps65217_reg_write(TPS65217_PROT_LEVEL_NONE,
390 TPS65217_STATUS, TPS65217_PWR_OFF, TPS65217_PWR_OFF);
393 void set_uart_mux_conf(void)
395 enable_uart0_pin_mux();
398 void set_mux_conf_regs(void)
400 enable_board_pin_mux();
403 #endif /* CONFIG_SPL_BUILD && CONFIG_AM33XX */