4 * common board functions for B&R boards
6 * Copyright (C) 2013 Hannes Schmelzer <oe5hpm@oevsv.at>
7 * Bernecker & Rainer Industrieelektronik GmbH - http://www.br-automation.com
9 * SPDX-License-Identifier: GPL-2.0+
16 #include <asm/arch/cpu.h>
17 #include <asm/arch/hardware.h>
18 #include <asm/arch/omap.h>
19 #include <asm/arch/clock.h>
20 #include <asm/arch/gpio.h>
21 #include <asm/arch/sys_proto.h>
22 #include <asm/arch/mmc_host_def.h>
28 #include <power/tps65217.h>
32 #include <fdt_support.h>
34 #include "bur_common.h"
35 #include "../../../drivers/video/am335x-fb.h"
37 #include <fdt_simplefb.h>
39 static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
41 DECLARE_GLOBAL_DATA_PTR;
44 #define FDTPROP(b, c) fdt_getprop_u32_default(gd->fdt_blob, b, c, ~0UL)
45 #define PATHTIM "/panel/display-timings/default"
46 #define PATHINF "/panel/panel-info"
48 /* --------------------------------------------------------------------------*/
49 #if defined(CONFIG_LCD) && defined(CONFIG_AM335X_LCD) && \
50 !defined(CONFIG_SPL_BUILD)
51 void lcdbacklight(int on)
54 if (gd->fdt_blob == NULL) {
55 printf("%s: don't have a valid gd->fdt_blob!\n", __func__);
58 unsigned int driver = FDTPROP(PATHINF, "brightdrv");
59 unsigned int bright = FDTPROP(PATHINF, "brightdef");
60 unsigned int pwmfrq = FDTPROP(PATHINF, "brightfdim");
62 unsigned int driver = getenv_ulong("ds1_bright_drv", 16, 0UL);
63 unsigned int bright = getenv_ulong("ds1_bright_def", 10, 50);
64 unsigned int pwmfrq = getenv_ulong("ds1_pwmfreq", 10, ~0UL);
68 struct gptimer *const timerhw = (struct gptimer *)DM_TIMER6_BASE;
71 bright = bright != ~0UL ? bright : 50;
76 case 0: /* PMIC LED-Driver */
77 /* brightness level */
78 tps65217_reg_write(TPS65217_PROT_LEVEL_NONE,
79 TPS65217_WLEDCTRL2, bright, 0xFF);
81 tps65217_reg_write(TPS65217_PROT_LEVEL_NONE,
83 bright != 0 ? 0x0A : 0x02,
86 case 1: /* PWM using timer6 */
88 timerhw->tiocp_cfg = TCFG_RESET;
90 while (timerhw->tiocp_cfg & TCFG_RESET)
92 tmp = ~0UL-(V_OSCK/pwmfrq); /* bottom value */
95 tmp = tmp + ((V_OSCK/pwmfrq)/100) * bright;
97 timerhw->tclr = (TCLR_PT | (2 << TCLR_TRG_SHIFT) |
98 TCLR_CE | TCLR_AR | TCLR_ST);
100 puts("invalid pwmfrq in env/dtb! skip PWM-setup.\n");
104 puts("no suitable backlightdriver in env/dtb!\n");
109 int load_lcdtiming(struct am335x_lcdpanel *panel)
111 struct am335x_lcdpanel pnltmp;
112 #ifdef CONFIG_USE_FDT
115 const char *nodep = 0;
118 if (gd->fdt_blob == NULL) {
119 printf("%s: don't have a valid gd->fdt_blob!\n", __func__);
122 memcpy(&pnltmp, (void *)panel, sizeof(struct am335x_lcdpanel));
124 pnltmp.hactive = FDTPROP(PATHTIM, "hactive");
125 pnltmp.vactive = FDTPROP(PATHTIM, "vactive");
126 pnltmp.bpp = FDTPROP(PATHINF, "bpp");
127 pnltmp.hfp = FDTPROP(PATHTIM, "hfront-porch");
128 pnltmp.hbp = FDTPROP(PATHTIM, "hback-porch");
129 pnltmp.hsw = FDTPROP(PATHTIM, "hsync-len");
130 pnltmp.vfp = FDTPROP(PATHTIM, "vfront-porch");
131 pnltmp.vbp = FDTPROP(PATHTIM, "vback-porch");
132 pnltmp.vsw = FDTPROP(PATHTIM, "vsync-len");
133 pnltmp.pup_delay = FDTPROP(PATHTIM, "pupdelay");
134 pnltmp.pon_delay = FDTPROP(PATHTIM, "pondelay");
136 /* calc. proper clk-divisor */
137 dtbprop = FDTPROP(PATHTIM, "clock-frequency");
139 pnltmp.pxl_clk_div = 192000000 / dtbprop;
141 pnltmp.pxl_clk_div = ~0UL;
143 /* check polarity of control-signals */
144 dtbprop = FDTPROP(PATHTIM, "hsync-active");
146 pnltmp.pol |= HSYNC_INVERT;
147 dtbprop = FDTPROP(PATHTIM, "vsync-active");
149 pnltmp.pol |= VSYNC_INVERT;
150 dtbprop = FDTPROP(PATHINF, "sync-ctrl");
152 pnltmp.pol |= HSVS_CONTROL;
153 dtbprop = FDTPROP(PATHINF, "sync-edge");
155 pnltmp.pol |= HSVS_RISEFALL;
156 dtbprop = FDTPROP(PATHTIM, "pixelclk-active");
158 pnltmp.pol |= PXCLK_INVERT;
159 dtbprop = FDTPROP(PATHTIM, "de-active");
161 pnltmp.pol |= DE_INVERT;
163 nodeoff = fdt_path_offset(gd->fdt_blob, "/factory-settings");
165 nodep = fdt_getprop(gd->fdt_blob, nodeoff, "rotation", NULL);
167 if (strcmp(nodep, "cw") == 0)
168 panel_info.vl_rot = 1;
169 else if (strcmp(nodep, "ud") == 0)
170 panel_info.vl_rot = 2;
171 else if (strcmp(nodep, "ccw") == 0)
172 panel_info.vl_rot = 3;
174 panel_info.vl_rot = 0;
177 puts("no 'factory-settings / rotation' in dtb!\n");
179 snprintf(buf, sizeof(buf), "fbcon=rotate:%d", panel_info.vl_rot);
180 setenv("optargs_rot", buf);
182 pnltmp.hactive = getenv_ulong("ds1_hactive", 10, ~0UL);
183 pnltmp.vactive = getenv_ulong("ds1_vactive", 10, ~0UL);
184 pnltmp.bpp = getenv_ulong("ds1_bpp", 10, ~0UL);
185 pnltmp.hfp = getenv_ulong("ds1_hfp", 10, ~0UL);
186 pnltmp.hbp = getenv_ulong("ds1_hbp", 10, ~0UL);
187 pnltmp.hsw = getenv_ulong("ds1_hsw", 10, ~0UL);
188 pnltmp.vfp = getenv_ulong("ds1_vfp", 10, ~0UL);
189 pnltmp.vbp = getenv_ulong("ds1_vbp", 10, ~0UL);
190 pnltmp.vsw = getenv_ulong("ds1_vsw", 10, ~0UL);
191 pnltmp.pxl_clk_div = getenv_ulong("ds1_pxlclkdiv", 10, ~0UL);
192 pnltmp.pol = getenv_ulong("ds1_pol", 16, ~0UL);
193 pnltmp.pup_delay = getenv_ulong("ds1_pupdelay", 10, ~0UL);
194 pnltmp.pon_delay = getenv_ulong("ds1_tondelay", 10, ~0UL);
195 panel_info.vl_rot = getenv_ulong("ds1_rotation", 10, 0);
198 ~0UL == (pnltmp.hactive) ||
199 ~0UL == (pnltmp.vactive) ||
200 ~0UL == (pnltmp.bpp) ||
201 ~0UL == (pnltmp.hfp) ||
202 ~0UL == (pnltmp.hbp) ||
203 ~0UL == (pnltmp.hsw) ||
204 ~0UL == (pnltmp.vfp) ||
205 ~0UL == (pnltmp.vbp) ||
206 ~0UL == (pnltmp.vsw) ||
207 ~0UL == (pnltmp.pxl_clk_div) ||
208 ~0UL == (pnltmp.pol) ||
209 ~0UL == (pnltmp.pup_delay) ||
210 ~0UL == (pnltmp.pon_delay)
212 puts("lcd-settings in env/dtb incomplete!\n");
213 printf("display-timings:\n"
227 pnltmp.hactive, pnltmp.vactive, pnltmp.bpp,
228 pnltmp.hfp, pnltmp.hbp, pnltmp.hsw,
229 pnltmp.vfp, pnltmp.vbp, pnltmp.vsw,
230 pnltmp.pxl_clk_div, pnltmp.pol, pnltmp.pon_delay);
234 debug("lcd-settings in env complete, taking over.\n");
235 memcpy((void *)panel,
237 sizeof(struct am335x_lcdpanel));
242 #ifdef CONFIG_USE_FDT
243 static int load_devicetree(void)
247 u32 dtbaddr = getenv_ulong("dtbaddr", 16, 0UL);
250 printf("%s: don't have a valid <dtbaddr> in env!\n", __func__);
255 rc = nand_read_skip_bad(&nand_info[0], 0x40000, (size_t *)&dtbsize,
256 NULL, 0x20000, (u_char *)dtbaddr);
258 char *dtbname = getenv("dtb");
259 char *dtbdev = getenv("dtbdev");
260 char *dtppart = getenv("dtbpart");
261 if (!dtbdev || !dtbdev || !dtbname) {
262 printf("%s: <dtbdev>/<dtbpart>/<dtb> missing.\n", __func__);
266 if (fs_set_blk_dev(dtbdev, dtppart, FS_TYPE_EXT)) {
267 puts("load_devicetree: set_blk_dev failed.\n");
270 rc = fs_read(dtbname, (u32)dtbaddr, 0, 0, &dtbsize);
273 gd->fdt_blob = (void *)dtbaddr;
274 gd->fdt_size = dtbsize;
275 debug("loaded %d bytes of dtb onto 0x%08x\n",
276 (u32)dtbsize, (u32)gd->fdt_blob);
280 printf("%s: load dtb failed!\n", __func__);
284 static const char *dtbmacaddr(u32 ifno)
291 if (gd->fdt_blob == NULL) {
292 printf("%s: don't have a valid gd->fdt_blob!\n", __func__);
296 node = fdt_path_offset(gd->fdt_blob, "/aliases");
300 sprintf(enet, "ethernet%d", ifno);
301 path = fdt_getprop(gd->fdt_blob, node, enet, NULL);
303 printf("no alias for %s\n", enet);
307 node = fdt_path_offset(gd->fdt_blob, path);
308 mac = fdt_getprop(gd->fdt_blob, node, "mac-address", &len);
309 if (mac && is_valid_ethaddr((u8 *)mac))
315 static void br_summaryscreen_printdtb(char *prefix,
319 char buf[32] = { 0 };
320 const char *nodep = buf;
325 if (gd->fdt_blob == NULL) {
326 printf("%s: don't have a valid gd->fdt_blob!\n", __func__);
330 if (strcmp(name, "brmac1") == 0) {
331 mac = (char *)dtbmacaddr(0);
333 sprintf(buf, "%pM", mac);
334 } else if (strcmp(name, "brmac2") == 0) {
335 mac = (char *)dtbmacaddr(1);
337 sprintf(buf, "%pM", mac);
339 nodeoffset = fdt_path_offset(gd->fdt_blob,
340 "/factory-settings");
341 if (nodeoffset < 0) {
342 puts("no 'factory-settings' in dtb!\n");
345 nodep = fdt_getprop(gd->fdt_blob, nodeoffset, name, &len);
347 if (nodep && strlen(nodep) > 1)
348 lcd_printf("%s %s %s", prefix, nodep, suffix);
352 int ft_board_setup(void *blob, bd_t *bd)
356 nodeoffset = fdt_path_offset(blob, "/factory-settings");
357 if (nodeoffset < 0) {
358 puts("set bootloader version 'factory-settings' not in dtb!\n");
361 if (fdt_setprop(blob, nodeoffset, "bl-version",
362 PLAIN_VERSION, strlen(PLAIN_VERSION)) != 0) {
363 puts("set bootloader version 'bl-version' prop. not in dtb!\n");
367 * if no simplefb is requested through environment, we don't set up
368 * one, instead we turn off backlight.
370 if (getenv_ulong("simplefb", 10, 0) == 0) {
374 /* Setup simplefb devicetree node, also adapt memory-node,
375 * upper limit for kernel e.g. linux is memtop-framebuffer alligned
376 * to a full megabyte.
378 u64 start = gd->bd->bi_dram[0].start;
379 u64 size = (gd->fb_base - start) & ~0xFFFFF;
380 int rc = fdt_fixup_memory_banks(blob, &start, &size, 1);
383 puts("cannot setup simplefb: Error reserving memory!\n");
386 rc = lcd_dt_simplefb_enable_existing_node(blob);
388 puts("cannot setup simplefb: error enabling simplefb node!\n");
396 static void br_summaryscreen_printenv(char *prefix,
397 char *name, char *altname,
400 char *envval = getenv(name);
402 lcd_printf("%s %s %s", prefix, envval, suffix);
403 } else if (0 != altname) {
404 envval = getenv(altname);
406 lcd_printf("%s %s %s", prefix, envval, suffix);
412 void br_summaryscreen(void)
414 #ifdef CONFIG_USE_FDT
415 br_summaryscreen_printdtb(" - B&R -", "order-no", "-\n");
416 br_summaryscreen_printdtb(" Serial/Rev :", "serial-no", " /");
417 br_summaryscreen_printdtb(" ", "hw-revision", "\n");
418 br_summaryscreen_printdtb(" MAC (IF1) :", "brmac1", "\n");
419 br_summaryscreen_printdtb(" MAC (IF2) :", "brmac2", "\n");
420 lcd_puts(" Bootloader : " PLAIN_VERSION "\n");
423 br_summaryscreen_printenv(" - B&R -", "br_orderno", 0, "-\n");
424 br_summaryscreen_printenv(" Serial/Rev :", "br_serial", 0, "\n");
425 br_summaryscreen_printenv(" MAC (IF1) :", "br_mac1", "ethaddr", "\n");
426 br_summaryscreen_printenv(" MAC (IF2) :", "br_mac2", 0, "\n");
427 lcd_puts(" Bootloader : " PLAIN_VERSION "\n");
432 void lcdpower(int on)
435 #ifdef CONFIG_USE_FDT
436 if (gd->fdt_blob == NULL) {
437 printf("%s: don't have a valid gd->fdt_blob!\n", __func__);
440 pin = FDTPROP(PATHINF, "pwrpin");
442 pin = getenv_ulong("ds1_pwr", 16, ~0UL);
445 puts("no pwrpin in dtb/env, cannot powerup display!\n");
449 for (i = 0; i < 3; i++) {
451 swval = pin & 0x80 ? 0 : 1;
453 gpio_direction_output(pin & 0x7F, swval);
455 gpio_direction_output(pin & 0x7F, !swval);
457 debug("switched pin %d to %d\n", pin & 0x7F, swval);
463 vidinfo_t panel_info = {
465 * give full resolution for allocating enough
473 void lcd_ctrl_init(void *lcdbase)
475 struct am335x_lcdpanel lcd_panel;
476 #ifdef CONFIG_USE_FDT
477 /* TODO: is there a better place to load the dtb ? */
480 memset(&lcd_panel, 0, sizeof(struct am335x_lcdpanel));
481 if (load_lcdtiming(&lcd_panel) != 0)
484 lcd_panel.panel_power_ctrl = &lcdpower;
486 if (0 != am335xfb_init(&lcd_panel))
487 printf("ERROR: failed to initialize video!");
489 * modifiy panel info to 'real' resolution, to operate correct with
492 panel_info.vl_col = lcd_panel.hactive;
493 panel_info.vl_row = lcd_panel.vactive;
495 lcd_set_flush_dcache(1);
498 void lcd_enable(void)
503 #elif CONFIG_SPL_BUILD
505 #error "LCD-support with a suitable FB-Driver is mandatory !"
506 #endif /* CONFIG_LCD */
508 #ifdef CONFIG_SPL_BUILD
509 void pmicsetup(u32 mpupll)
514 if (i2c_probe(TPS65217_CHIP_PM)) {
515 puts("PMIC (0x24) not found! skip further initalization.\n");
519 /* Get the frequency which is defined by device fuses */
520 dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev);
521 printf("detected max. frequency: %d - ", dpll_mpu_opp100.m);
524 dpll_mpu_opp100.m = MPUPLL_M_1000;
525 printf("retuning MPU-PLL to: %d MHz.\n", dpll_mpu_opp100.m);
530 * Increase USB current limit to 1300mA or 1800mA and set
531 * the MPU voltage controller as needed.
533 if (dpll_mpu_opp100.m == MPUPLL_M_1000) {
534 usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1800MA;
535 mpu_vdd = TPS65217_DCDC_VOLT_SEL_1325MV;
537 usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1300MA;
538 mpu_vdd = TPS65217_DCDC_VOLT_SEL_1275MV;
541 if (tps65217_reg_write(TPS65217_PROT_LEVEL_NONE, TPS65217_POWER_PATH,
542 usb_cur_lim, TPS65217_USB_INPUT_CUR_LIMIT_MASK))
543 puts("tps65217_reg_write failure\n");
545 /* Set DCDC3 (CORE) voltage to 1.125V */
546 if (tps65217_voltage_update(TPS65217_DEFDCDC3,
547 TPS65217_DCDC_VOLT_SEL_1125MV)) {
548 puts("tps65217_voltage_update failure\n");
552 /* Set CORE Frequencies to OPP100 */
553 do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
555 /* Set DCDC2 (MPU) voltage */
556 if (tps65217_voltage_update(TPS65217_DEFDCDC2, mpu_vdd)) {
557 puts("tps65217_voltage_update failure\n");
561 /* Set LDO3 to 1.8V */
562 if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
564 TPS65217_LDO_VOLTAGE_OUT_1_8,
566 puts("tps65217_reg_write failure\n");
567 /* Set LDO4 to 3.3V */
568 if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
570 TPS65217_LDO_VOLTAGE_OUT_3_3,
572 puts("tps65217_reg_write failure\n");
574 /* Set MPU Frequency to what we detected now that voltages are set */
575 do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100);
576 /* Set PWR_EN bit in Status Register */
577 tps65217_reg_write(TPS65217_PROT_LEVEL_NONE,
578 TPS65217_STATUS, TPS65217_PWR_OFF, TPS65217_PWR_OFF);
581 void set_uart_mux_conf(void)
583 enable_uart0_pin_mux();
586 void set_mux_conf_regs(void)
588 enable_board_pin_mux();
591 #endif /* CONFIG_SPL_BUILD */
593 #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
594 (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD))
595 static void cpsw_control(int enabled)
597 /* VTP can be added here */
601 /* describing port offsets of TI's CPSW block */
602 static struct cpsw_slave_data cpsw_slaves[] = {
604 .slave_reg_ofs = 0x208,
605 .sliver_reg_ofs = 0xd80,
609 .slave_reg_ofs = 0x308,
610 .sliver_reg_ofs = 0xdc0,
615 static struct cpsw_platform_data cpsw_data = {
616 .mdio_base = CPSW_MDIO_BASE,
617 .cpsw_base = CPSW_BASE,
620 .cpdma_reg_ofs = 0x800,
622 .slave_data = cpsw_slaves,
623 .ale_reg_ofs = 0xd00,
625 .host_port_reg_ofs = 0x108,
626 .hw_stats_reg_ofs = 0x900,
627 .bd_ram_ofs = 0x2000,
628 .mac_control = (1 << 5),
629 .control = cpsw_control,
631 .version = CPSW_CTRL_VERSION_2,
633 #endif /* CONFIG_DRIVER_TI_CPSW, ... */
635 #if defined(CONFIG_DRIVER_TI_CPSW)
637 int board_eth_init(bd_t *bis)
642 uint32_t mac_hi, mac_lo;
643 /* try reading mac address from efuse */
644 mac_lo = readl(&cdev->macid0l);
645 mac_hi = readl(&cdev->macid0h);
646 mac_addr[0] = mac_hi & 0xFF;
647 mac_addr[1] = (mac_hi & 0xFF00) >> 8;
648 mac_addr[2] = (mac_hi & 0xFF0000) >> 16;
649 mac_addr[3] = (mac_hi & 0xFF000000) >> 24;
650 mac_addr[4] = mac_lo & 0xFF;
651 mac_addr[5] = (mac_lo & 0xFF00) >> 8;
653 #if (defined(CONFIG_DRIVER_TI_CPSW) && !defined(CONFIG_SPL_BUILD)) || \
654 (defined(CONFIG_SPL_ETH_SUPPORT) && defined(CONFIG_SPL_BUILD))
655 if (!getenv("ethaddr")) {
656 #if !defined(CONFIG_SPL_BUILD) && defined(CONFIG_USE_FDT)
657 printf("<ethaddr> not set. trying DTB ... ");
661 printf("<ethaddr> not set. validating E-fuse MAC ... ");
662 if (is_valid_ethaddr((const u8 *)mac_addr))
663 mac = (const char *)mac_addr;
667 printf("using: %pM on ", mac);
668 eth_setenv_enetaddr("ethaddr", (const u8 *)mac);
671 writel(MII_MODE_ENABLE, &cdev->miisel);
672 cpsw_slaves[0].phy_if = PHY_INTERFACE_MODE_MII;
673 cpsw_slaves[1].phy_if = PHY_INTERFACE_MODE_MII;
675 rv = cpsw_register(&cpsw_data);
677 printf("Error %d registering CPSW switch\n", rv);
680 #endif /* CONFIG_DRIVER_TI_CPSW, ... */
683 #endif /* CONFIG_DRIVER_TI_CPSW */
684 #if defined(CONFIG_GENERIC_MMC) && !defined(CONFIG_SPL_BUILD)
685 int board_mmc_init(bd_t *bis)
687 return omap_mmc_init(1, 0, 0, -1, -1);
690 int overwrite_console(void)