2 * Copyright (C) 2012,2013 Lothar Waßmann <LW@KARO-electronics.de>
4 * See file CREDITS for list of people who contributed to this
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * version 2 as published by the Free Software Foundation.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
21 #include <fdt_support.h>
25 #include <fsl_esdhc.h>
33 #include <asm/arch/mx6-pins.h>
34 #include <asm/arch/clock.h>
35 #include <asm/arch/imx-regs.h>
36 #include <asm/arch/crm_regs.h>
37 #include <asm/arch/sys_proto.h>
39 #include "../common/karo.h"
42 #define TX6_FEC_RST_GPIO IMX_GPIO_NR(7, 6)
43 #define TX6_FEC_PWR_GPIO IMX_GPIO_NR(3, 20)
44 #define TX6_FEC_INT_GPIO IMX_GPIO_NR(7, 1)
45 #define TX6_LED_GPIO IMX_GPIO_NR(2, 20)
47 #define TX6_LCD_PWR_GPIO IMX_GPIO_NR(2, 31)
48 #define TX6_LCD_RST_GPIO IMX_GPIO_NR(3, 29)
49 #define TX6_LCD_BACKLIGHT_GPIO IMX_GPIO_NR(1, 1)
51 #define TX6_RESET_OUT_GPIO IMX_GPIO_NR(7, 12)
53 #define TEMPERATURE_MIN -40
54 #define TEMPERATURE_HOT 80
55 #define TEMPERATURE_MAX 125
57 DECLARE_GLOBAL_DATA_PTR;
59 #define MUX_CFG_SION IOMUX_PAD(0, 0, IOMUX_CONFIG_SION, 0, 0, 0)
61 static const iomux_v3_cfg_t tx6qdl_pads[] = {
64 MX6_PAD_NANDF_CLE__RAWNAND_CLE,
65 MX6_PAD_NANDF_ALE__RAWNAND_ALE,
66 MX6_PAD_NANDF_WP_B__RAWNAND_RESETN,
67 MX6_PAD_NANDF_RB0__RAWNAND_READY0,
68 MX6_PAD_NANDF_CS0__RAWNAND_CE0N,
69 MX6_PAD_SD4_CMD__RAWNAND_RDN,
70 MX6_PAD_SD4_CLK__RAWNAND_WRN,
71 MX6_PAD_NANDF_D0__RAWNAND_D0,
72 MX6_PAD_NANDF_D1__RAWNAND_D1,
73 MX6_PAD_NANDF_D2__RAWNAND_D2,
74 MX6_PAD_NANDF_D3__RAWNAND_D3,
75 MX6_PAD_NANDF_D4__RAWNAND_D4,
76 MX6_PAD_NANDF_D5__RAWNAND_D5,
77 MX6_PAD_NANDF_D6__RAWNAND_D6,
78 MX6_PAD_NANDF_D7__RAWNAND_D7,
81 MX6_PAD_GPIO_17__GPIO_7_12,
84 #if CONFIG_MXC_UART_BASE == UART1_BASE
85 MX6_PAD_SD3_DAT7__UART1_TXD,
86 MX6_PAD_SD3_DAT6__UART1_RXD,
87 MX6_PAD_SD3_DAT1__UART1_RTS,
88 MX6_PAD_SD3_DAT0__UART1_CTS,
90 #if CONFIG_MXC_UART_BASE == UART2_BASE
91 MX6_PAD_SD4_DAT4__UART2_RXD,
92 MX6_PAD_SD4_DAT7__UART2_TXD,
93 MX6_PAD_SD4_DAT5__UART2_RTS,
94 MX6_PAD_SD4_DAT6__UART2_CTS,
96 #if CONFIG_MXC_UART_BASE == UART3_BASE
97 MX6_PAD_EIM_D24__UART3_TXD,
98 MX6_PAD_EIM_D25__UART3_RXD,
99 MX6_PAD_SD3_RST__UART3_RTS,
100 MX6_PAD_SD3_DAT3__UART3_CTS,
103 MX6_PAD_EIM_D28__I2C1_SDA,
104 MX6_PAD_EIM_D21__I2C1_SCL,
106 /* FEC PHY GPIO functions */
107 MX6_PAD_EIM_D20__GPIO_3_20 | MUX_CFG_SION, /* PHY POWER */
108 MX6_PAD_SD3_DAT2__GPIO_7_6 | MUX_CFG_SION, /* PHY RESET */
109 MX6_PAD_SD3_DAT4__GPIO_7_1, /* PHY INT */
112 static const iomux_v3_cfg_t tx6qdl_fec_pads[] = {
114 MX6_PAD_ENET_MDC__ENET_MDC,
115 MX6_PAD_ENET_MDIO__ENET_MDIO,
116 MX6_PAD_GPIO_16__ENET_ANATOP_ETHERNET_REF_OUT,
117 MX6_PAD_ENET_RX_ER__ENET_RX_ER,
118 MX6_PAD_ENET_CRS_DV__ENET_RX_EN,
119 MX6_PAD_ENET_RXD1__ENET_RDATA_1,
120 MX6_PAD_ENET_RXD0__ENET_RDATA_0,
121 MX6_PAD_ENET_TX_EN__ENET_TX_EN,
122 MX6_PAD_ENET_TXD1__ENET_TDATA_1,
123 MX6_PAD_ENET_TXD0__ENET_TDATA_0,
126 static const struct gpio tx6qdl_gpios[] = {
127 { TX6_RESET_OUT_GPIO, GPIOF_OUTPUT_INIT_HIGH, "#RESET_OUT", },
128 { TX6_FEC_PWR_GPIO, GPIOF_OUTPUT_INIT_HIGH, "FEC PHY PWR", },
129 { TX6_FEC_RST_GPIO, GPIOF_OUTPUT_INIT_LOW, "FEC PHY RESET", },
130 { TX6_FEC_INT_GPIO, GPIOF_INPUT, "FEC PHY INT", },
136 /* placed in section '.data' to prevent overwriting relocation info
139 static u32 wrsr __attribute__((section(".data")));
141 #define WRSR_POR (1 << 4)
142 #define WRSR_TOUT (1 << 1)
143 #define WRSR_SFTW (1 << 0)
145 static void print_reset_cause(void)
147 struct src *src_regs = (struct src *)SRC_BASE_ADDR;
148 void __iomem *wdt_base = (void __iomem *)WDOG1_BASE_ADDR;
152 printf("Reset cause: ");
154 srsr = readl(&src_regs->srsr);
155 wrsr = readw(wdt_base + 4);
157 if (wrsr & WRSR_POR) {
158 printf("%sPOR", dlm);
161 if (srsr & 0x00004) {
162 printf("%sCSU", dlm);
165 if (srsr & 0x00008) {
166 printf("%sIPP USER", dlm);
169 if (srsr & 0x00010) {
170 if (wrsr & WRSR_SFTW) {
171 printf("%sSOFT", dlm);
174 if (wrsr & WRSR_TOUT) {
175 printf("%sWDOG", dlm);
179 if (srsr & 0x00020) {
180 printf("%sJTAG HIGH-Z", dlm);
183 if (srsr & 0x00040) {
184 printf("%sJTAG SW", dlm);
187 if (srsr & 0x10000) {
188 printf("%sWARM BOOT", dlm);
197 int read_cpu_temperature(void);
198 int check_cpu_temperature(int boot);
200 static void tx6qdl_print_cpuinfo(void)
202 u32 cpurev = get_cpu_rev();
205 switch ((cpurev >> 12) & 0xff) {
212 case MXC_CPU_MX6SOLO:
220 printf("CPU: Freescale i.MX6%s rev%d.%d at %d MHz\n",
222 (cpurev & 0x000F0) >> 4,
223 (cpurev & 0x0000F) >> 0,
224 mxc_get_clock(MXC_ARM_CLK) / 1000000);
227 check_cpu_temperature(1);
230 int board_early_init_f(void)
232 gpio_request_array(tx6qdl_gpios, ARRAY_SIZE(tx6qdl_gpios));
233 imx_iomux_v3_setup_multiple_pads(tx6qdl_pads, ARRAY_SIZE(tx6qdl_pads));
242 /* Address of boot parameters */
243 gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x1000;
244 gd->bd->bi_arch_number = -1;
247 printf("CTRL-C detected; Skipping PMIC setup\n");
251 ret = setup_pmic_voltages();
253 printf("Failed to setup PMIC voltages\n");
261 /* dram_init must store complete ramsize in gd->ram_size */
262 gd->ram_size = get_ram_size((void *)CONFIG_SYS_SDRAM_BASE,
267 void dram_init_banksize(void)
269 gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
270 gd->bd->bi_dram[0].size = get_ram_size((void *)PHYS_SDRAM_1,
272 #if CONFIG_NR_DRAM_BANKS > 1
273 gd->bd->bi_dram[1].start = PHYS_SDRAM_2;
274 gd->bd->bi_dram[1].size = get_ram_size((void *)PHYS_SDRAM_2,
279 #ifdef CONFIG_CMD_MMC
280 #define USDHC_PAD_CTRL (PAD_CTL_PUS_47K_UP | \
281 PAD_CTL_SPEED_LOW | PAD_CTL_DSE_80ohm | \
282 PAD_CTL_SRE_FAST | PAD_CTL_HYS)
284 static const iomux_v3_cfg_t mmc0_pads[] = {
285 MX6_PAD_SD1_CMD__USDHC1_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
286 MX6_PAD_SD1_CLK__USDHC1_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
287 MX6_PAD_SD1_DAT0__USDHC1_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
288 MX6_PAD_SD1_DAT1__USDHC1_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
289 MX6_PAD_SD1_DAT2__USDHC1_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
290 MX6_PAD_SD1_DAT3__USDHC1_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
292 MX6_PAD_SD3_CMD__GPIO_7_2,
295 static const iomux_v3_cfg_t mmc1_pads[] = {
296 MX6_PAD_SD2_CMD__USDHC2_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
297 MX6_PAD_SD2_CLK__USDHC2_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
298 MX6_PAD_SD2_DAT0__USDHC2_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
299 MX6_PAD_SD2_DAT1__USDHC2_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
300 MX6_PAD_SD2_DAT2__USDHC2_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
301 MX6_PAD_SD2_DAT3__USDHC2_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
303 MX6_PAD_SD3_CLK__GPIO_7_3,
306 #ifdef CONFIG_MMC_BOOT_SIZE
307 static const iomux_v3_cfg_t mmc3_pads[] = {
308 MX6_PAD_SD4_CMD__USDHC4_CMD | MUX_PAD_CTRL(USDHC_PAD_CTRL),
309 MX6_PAD_SD4_CLK__USDHC4_CLK | MUX_PAD_CTRL(USDHC_PAD_CTRL),
310 MX6_PAD_SD4_DAT0__USDHC4_DAT0 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
311 MX6_PAD_SD4_DAT1__USDHC4_DAT1 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
312 MX6_PAD_SD4_DAT2__USDHC4_DAT2 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
313 MX6_PAD_SD4_DAT3__USDHC4_DAT3 | MUX_PAD_CTRL(USDHC_PAD_CTRL),
315 MX6_PAD_NANDF_ALE__USDHC4_RST,
319 static struct tx6_esdhc_cfg {
320 const iomux_v3_cfg_t *pads;
322 enum mxc_clock clkid;
323 struct fsl_esdhc_cfg cfg;
325 } tx6qdl_esdhc_cfg[] = {
326 #ifdef CONFIG_MMC_BOOT_SIZE
329 .num_pads = ARRAY_SIZE(mmc3_pads),
330 .clkid = MXC_ESDHC4_CLK,
332 .esdhc_base = (void __iomem *)USDHC4_BASE_ADDR,
340 .num_pads = ARRAY_SIZE(mmc0_pads),
341 .clkid = MXC_ESDHC_CLK,
343 .esdhc_base = (void __iomem *)USDHC1_BASE_ADDR,
346 .cd_gpio = IMX_GPIO_NR(7, 2),
350 .num_pads = ARRAY_SIZE(mmc1_pads),
351 .clkid = MXC_ESDHC2_CLK,
353 .esdhc_base = (void __iomem *)USDHC2_BASE_ADDR,
356 .cd_gpio = IMX_GPIO_NR(7, 3),
360 static inline struct tx6_esdhc_cfg *to_tx6_esdhc_cfg(struct fsl_esdhc_cfg *cfg)
362 return container_of(cfg, struct tx6_esdhc_cfg, cfg);
365 int board_mmc_getcd(struct mmc *mmc)
367 struct tx6_esdhc_cfg *cfg = to_tx6_esdhc_cfg(mmc->priv);
369 if (cfg->cd_gpio < 0)
372 debug("SD card %d is %spresent\n",
373 cfg - tx6qdl_esdhc_cfg,
374 gpio_get_value(cfg->cd_gpio) ? "NOT " : "");
375 return !gpio_get_value(cfg->cd_gpio);
378 int board_mmc_init(bd_t *bis)
382 for (i = 0; i < ARRAY_SIZE(tx6qdl_esdhc_cfg); i++) {
384 struct tx6_esdhc_cfg *cfg = &tx6qdl_esdhc_cfg[i];
387 cfg->cfg.sdhc_clk = mxc_get_clock(cfg->clkid);
388 imx_iomux_v3_setup_multiple_pads(cfg->pads, cfg->num_pads);
390 if (cfg->cd_gpio >= 0) {
391 ret = gpio_request_one(cfg->cd_gpio,
392 GPIOF_INPUT, "MMC CD");
394 printf("Error %d requesting GPIO%d_%d\n",
395 ret, cfg->cd_gpio / 32, cfg->cd_gpio % 32);
400 debug("%s: Initializing MMC slot %d\n", __func__, i);
401 fsl_esdhc_initialize(bis, &cfg->cfg);
403 mmc = find_mmc_device(i);
406 if (board_mmc_getcd(mmc))
411 #endif /* CONFIG_CMD_MMC */
413 #ifdef CONFIG_FEC_MXC
415 #define FEC_PAD_CTL (PAD_CTL_DVS | PAD_CTL_DSE_HIGH | \
417 #define FEC_PAD_CTL2 (PAD_CTL_DVS | PAD_CTL_SRE_FAST)
418 #define GPIO_PAD_CTL (PAD_CTL_DVS | PAD_CTL_DSE_HIGH)
424 int board_eth_init(bd_t *bis)
428 /* delay at least 21ms for the PHY internal POR signal to deassert */
431 imx_iomux_v3_setup_multiple_pads(tx6qdl_fec_pads, ARRAY_SIZE(tx6qdl_fec_pads));
433 /* Deassert RESET to the external phy */
434 gpio_set_value(TX6_FEC_RST_GPIO, 1);
436 ret = cpu_eth_init(bis);
438 printf("cpu_eth_init() failed: %d\n", ret);
442 #endif /* CONFIG_FEC_MXC */
450 static inline int calc_blink_rate(int tmp)
452 return CONFIG_SYS_HZ + CONFIG_SYS_HZ / 10 -
453 (tmp - TEMPERATURE_MIN) * CONFIG_SYS_HZ /
454 (TEMPERATURE_HOT - TEMPERATURE_MIN);
457 void show_activity(int arg)
459 static int led_state = LED_STATE_INIT;
460 static int blink_rate;
463 if (led_state == LED_STATE_INIT) {
465 gpio_set_value(TX6_LED_GPIO, 1);
466 led_state = LED_STATE_ON;
467 blink_rate = calc_blink_rate(check_cpu_temperature(0));
469 if (get_timer(last) > blink_rate) {
470 blink_rate = calc_blink_rate(check_cpu_temperature(0));
471 last = get_timer_masked();
472 if (led_state == LED_STATE_ON) {
473 gpio_set_value(TX6_LED_GPIO, 0);
475 gpio_set_value(TX6_LED_GPIO, 1);
477 led_state = 1 - led_state;
482 static const iomux_v3_cfg_t stk5_pads[] = {
483 /* SW controlled LED on STK5 baseboard */
484 MX6_PAD_EIM_A18__GPIO_2_20,
486 /* I2C bus on DIMM pins 40/41 */
487 MX6_PAD_GPIO_6__I2C3_SDA,
488 MX6_PAD_GPIO_3__I2C3_SCL,
490 /* TSC200x PEN IRQ */
491 MX6_PAD_EIM_D26__GPIO_3_26,
493 /* EDT-FT5x06 Polytouch panel */
494 MX6_PAD_NANDF_CS2__GPIO_6_15, /* IRQ */
495 MX6_PAD_EIM_A16__GPIO_2_22, /* RESET */
496 MX6_PAD_EIM_A17__GPIO_2_21, /* WAKE */
499 MX6_PAD_EIM_D31__GPIO_3_31, /* VBUSEN */
500 MX6_PAD_EIM_D30__GPIO_3_30, /* OC */
502 MX6_PAD_EIM_D23__GPIO_3_23, /* USBOTG ID */
503 MX6_PAD_GPIO_7__GPIO_1_7, /* VBUSEN */
504 MX6_PAD_GPIO_8__GPIO_1_8, /* OC */
507 static const struct gpio stk5_gpios[] = {
508 { TX6_LED_GPIO, GPIOF_OUTPUT_INIT_LOW, "HEARTBEAT LED", },
510 { IMX_GPIO_NR(3, 23), GPIOF_INPUT, "USBOTG ID", },
511 { IMX_GPIO_NR(1, 8), GPIOF_INPUT, "USBOTG OC", },
512 { IMX_GPIO_NR(1, 7), GPIOF_OUTPUT_INIT_LOW, "USBOTG VBUS enable", },
513 { IMX_GPIO_NR(3, 30), GPIOF_INPUT, "USBH1 OC", },
514 { IMX_GPIO_NR(3, 31), GPIOF_OUTPUT_INIT_LOW, "USBH1 VBUS enable", },
518 static u16 tx6_cmap[256];
519 vidinfo_t panel_info = {
520 /* set to max. size supported by SoC */
524 .vl_bpix = LCD_COLOR24, /* Bits per pixel, 0: 1bpp, 1: 2bpp, 2: 4bpp, 3: 8bpp ... */
528 static struct fb_videomode tx6_fb_modes[] = {
529 #ifndef CONFIG_SYS_LVDS_IF
531 /* Standard VGA timing */
536 .pixclock = KHZ2PICOS(25175),
543 .sync = FB_SYNC_CLK_LAT_FALL,
546 /* Emerging ETV570 640 x 480 display. Syncs low active,
547 * DE high active, 115.2 mm x 86.4 mm display area
548 * VGA compatible timing
554 .pixclock = KHZ2PICOS(25175),
561 .sync = FB_SYNC_CLK_LAT_FALL,
564 /* Emerging ET0350G0DH6 320 x 240 display.
565 * 70.08 mm x 52.56 mm display area.
571 .pixclock = KHZ2PICOS(6500),
572 .left_margin = 68 - 34,
575 .upper_margin = 18 - 3,
578 .sync = FB_SYNC_CLK_LAT_FALL,
581 /* Emerging ET0430G0DH6 480 x 272 display.
582 * 95.04 mm x 53.856 mm display area.
588 .pixclock = KHZ2PICOS(9000),
595 .sync = FB_SYNC_CLK_LAT_FALL,
598 /* Emerging ET0500G0DH6 800 x 480 display.
599 * 109.6 mm x 66.4 mm display area.
605 .pixclock = KHZ2PICOS(33260),
606 .left_margin = 216 - 128,
608 .right_margin = 1056 - 800 - 216,
609 .upper_margin = 35 - 2,
611 .lower_margin = 525 - 480 - 35,
612 .sync = FB_SYNC_CLK_LAT_FALL,
615 /* Emerging ETQ570G0DH6 320 x 240 display.
616 * 115.2 mm x 86.4 mm display area.
622 .pixclock = KHZ2PICOS(6400),
626 .upper_margin = 16, /* 15 according to datasheet */
627 .vsync_len = 3, /* TVP -> 1>x>5 */
628 .lower_margin = 4, /* 4.5 according to datasheet */
629 .sync = FB_SYNC_CLK_LAT_FALL,
632 /* Emerging ET0700G0DH6 800 x 480 display.
633 * 152.4 mm x 91.44 mm display area.
639 .pixclock = KHZ2PICOS(33260),
640 .left_margin = 216 - 128,
642 .right_margin = 1056 - 800 - 216,
643 .upper_margin = 35 - 2,
645 .lower_margin = 525 - 480 - 35,
646 .sync = FB_SYNC_CLK_LAT_FALL,
649 /* Emerging ET070001DM6 800 x 480 display.
650 * 152.4 mm x 91.44 mm display area.
652 .name = "ET070001DM6",
656 .pixclock = KHZ2PICOS(33260),
657 .left_margin = 216 - 128,
659 .right_margin = 1056 - 800 - 216,
660 .upper_margin = 35 - 2,
662 .lower_margin = 525 - 480 - 35,
667 /* HannStar HSD100PXN1
668 * 202.7m mm x 152.06 mm display area.
670 .name = "HSD100PXN1",
674 .pixclock = KHZ2PICOS(65000),
681 .sync = FB_SYNC_CLK_LAT_FALL,
685 /* unnamed entry for assigning parameters parsed from 'video_mode' string */
693 .sync = FB_SYNC_CLK_LAT_FALL,
697 static int lcd_enabled = 1;
698 static int lcd_bl_polarity;
700 static int lcd_backlight_polarity(void)
702 return lcd_bl_polarity;
705 void lcd_enable(void)
708 * global variable from common/lcd.c
709 * Set to 0 here to prevent messages from going to LCD
710 * rather than serial console
714 karo_load_splashimage(1);
717 debug("Switching LCD on\n");
718 gpio_set_value(TX6_LCD_PWR_GPIO, 1);
720 gpio_set_value(TX6_LCD_RST_GPIO, 1);
722 gpio_set_value(TX6_LCD_BACKLIGHT_GPIO,
723 lcd_backlight_polarity());
727 void lcd_disable(void)
730 printf("Disabling LCD\n");
735 void lcd_panel_disable(void)
738 debug("Switching LCD off\n");
739 gpio_set_value(TX6_LCD_BACKLIGHT_GPIO,
740 !lcd_backlight_polarity());
741 gpio_set_value(TX6_LCD_RST_GPIO, 0);
742 gpio_set_value(TX6_LCD_PWR_GPIO, 0);
746 static const iomux_v3_cfg_t stk5_lcd_pads[] = {
748 MX6_PAD_EIM_D29__GPIO_3_29,
749 /* LCD POWER_ENABLE */
750 MX6_PAD_EIM_EB3__GPIO_2_31,
751 /* LCD Backlight (PWM) */
752 MX6_PAD_GPIO_1__GPIO_1_1,
754 #ifndef CONFIG_SYS_LVDS_IF
756 MX6_PAD_DISP0_DAT0__IPU1_DISP0_DAT_0,
757 MX6_PAD_DISP0_DAT1__IPU1_DISP0_DAT_1,
758 MX6_PAD_DISP0_DAT2__IPU1_DISP0_DAT_2,
759 MX6_PAD_DISP0_DAT3__IPU1_DISP0_DAT_3,
760 MX6_PAD_DISP0_DAT4__IPU1_DISP0_DAT_4,
761 MX6_PAD_DISP0_DAT5__IPU1_DISP0_DAT_5,
762 MX6_PAD_DISP0_DAT6__IPU1_DISP0_DAT_6,
763 MX6_PAD_DISP0_DAT7__IPU1_DISP0_DAT_7,
764 MX6_PAD_DISP0_DAT8__IPU1_DISP0_DAT_8,
765 MX6_PAD_DISP0_DAT9__IPU1_DISP0_DAT_9,
766 MX6_PAD_DISP0_DAT10__IPU1_DISP0_DAT_10,
767 MX6_PAD_DISP0_DAT11__IPU1_DISP0_DAT_11,
768 MX6_PAD_DISP0_DAT12__IPU1_DISP0_DAT_12,
769 MX6_PAD_DISP0_DAT13__IPU1_DISP0_DAT_13,
770 MX6_PAD_DISP0_DAT14__IPU1_DISP0_DAT_14,
771 MX6_PAD_DISP0_DAT15__IPU1_DISP0_DAT_15,
772 MX6_PAD_DISP0_DAT16__IPU1_DISP0_DAT_16,
773 MX6_PAD_DISP0_DAT17__IPU1_DISP0_DAT_17,
774 MX6_PAD_DISP0_DAT18__IPU1_DISP0_DAT_18,
775 MX6_PAD_DISP0_DAT19__IPU1_DISP0_DAT_19,
776 MX6_PAD_DISP0_DAT20__IPU1_DISP0_DAT_20,
777 MX6_PAD_DISP0_DAT21__IPU1_DISP0_DAT_21,
778 MX6_PAD_DISP0_DAT22__IPU1_DISP0_DAT_22,
779 MX6_PAD_DISP0_DAT23__IPU1_DISP0_DAT_23,
780 MX6_PAD_DI0_PIN2__IPU1_DI0_PIN2, /* HSYNC */
781 MX6_PAD_DI0_PIN3__IPU1_DI0_PIN3, /* VSYNC */
782 MX6_PAD_DI0_PIN15__IPU1_DI0_PIN15, /* OE_ACD */
783 MX6_PAD_DI0_DISP_CLK__IPU1_DI0_DISP_CLK, /* LSCLK */
787 static const struct gpio stk5_lcd_gpios[] = {
788 { TX6_LCD_RST_GPIO, GPIOF_OUTPUT_INIT_LOW, "LCD RESET", },
789 { TX6_LCD_PWR_GPIO, GPIOF_OUTPUT_INIT_LOW, "LCD POWER", },
790 { TX6_LCD_BACKLIGHT_GPIO, GPIOF_OUTPUT_INIT_HIGH, "LCD BACKLIGHT", },
793 void lcd_ctrl_init(void *lcdbase)
795 int color_depth = 24;
796 const char *video_mode = karo_get_vmode(getenv("video_mode"));
800 struct fb_videomode *p = &tx6_fb_modes[0];
801 struct fb_videomode fb_mode;
802 int xres_set = 0, yres_set = 0, bpp_set = 0, refresh_set = 0;
805 unsigned long di_clk_rate = 65000000;
808 debug("LCD disabled\n");
812 if (had_ctrlc() || (wrsr & WRSR_TOUT)) {
813 debug("Disabling LCD\n");
815 setenv("splashimage", NULL);
820 lcd_bl_polarity = karo_fdt_get_backlight_polarity(working_fdt);
822 if (video_mode == NULL) {
823 debug("Disabling LCD\n");
828 if (karo_fdt_get_fb_mode(working_fdt, video_mode, &fb_mode) == 0) {
830 debug("Using video mode from FDT\n");
832 if (fb_mode.xres > panel_info.vl_col ||
833 fb_mode.yres > panel_info.vl_row) {
834 printf("video resolution from DT: %dx%d exceeds hardware limits: %dx%d\n",
835 fb_mode.xres, fb_mode.yres,
836 panel_info.vl_col, panel_info.vl_row);
842 debug("Trying compiled-in video modes\n");
843 while (p->name != NULL) {
844 if (strcmp(p->name, vm) == 0) {
845 debug("Using video mode: '%s'\n", p->name);
852 debug("Trying to decode video_mode: '%s'\n", vm);
853 while (*vm != '\0') {
854 if (*vm >= '0' && *vm <= '9') {
857 val = simple_strtoul(vm, &end, 0);
860 if (val > panel_info.vl_col)
861 val = panel_info.vl_col;
863 panel_info.vl_col = val;
865 } else if (!yres_set) {
866 if (val > panel_info.vl_row)
867 val = panel_info.vl_row;
869 panel_info.vl_row = val;
871 } else if (!bpp_set) {
876 pix_fmt = IPU_PIX_FMT_LVDS888;
890 printf("Invalid color depth: '%.*s' in video_mode; using default: '%u'\n",
891 end - vm, vm, color_depth);
894 } else if (!refresh_set) {
921 if (p->xres == 0 || p->yres == 0) {
922 printf("Invalid video mode: %s\n", getenv("video_mode"));
924 printf("Supported video modes are:");
925 for (p = &tx6_fb_modes[0]; p->name != NULL; p++) {
926 printf(" %s", p->name);
931 if (p->xres > panel_info.vl_col || p->yres > panel_info.vl_row) {
932 printf("video resolution: %dx%d exceeds hardware limits: %dx%d\n",
933 p->xres, p->yres, panel_info.vl_col, panel_info.vl_row);
937 panel_info.vl_col = p->xres;
938 panel_info.vl_row = p->yres;
940 switch (color_depth) {
942 panel_info.vl_bpix = LCD_COLOR8;
945 panel_info.vl_bpix = LCD_COLOR16;
948 panel_info.vl_bpix = LCD_COLOR24;
951 p->pixclock = KHZ2PICOS(refresh *
952 (p->xres + p->left_margin + p->right_margin + p->hsync_len) *
953 (p->yres + p->upper_margin + p->lower_margin + p->vsync_len) /
955 debug("Pixel clock set to %lu.%03lu MHz\n",
956 PICOS2KHZ(p->pixclock) / 1000, PICOS2KHZ(p->pixclock) % 1000);
961 debug("Creating new display-timing node from '%s'\n",
963 ret = karo_fdt_create_fb_mode(working_fdt, video_mode, p);
965 printf("Failed to create new display-timing node from '%s': %d\n",
969 gpio_request_array(stk5_lcd_gpios, ARRAY_SIZE(stk5_lcd_gpios));
970 imx_iomux_v3_setup_multiple_pads(stk5_lcd_pads,
971 ARRAY_SIZE(stk5_lcd_pads));
973 lcd_bus_width = karo_fdt_get_lcd_bus_width(working_fdt, 24);
974 switch (lcd_bus_width) {
976 pix_fmt = is_lvds() ? IPU_PIX_FMT_LVDS888 : IPU_PIX_FMT_RGB24;
980 pix_fmt = is_lvds() ? IPU_PIX_FMT_LVDS666 : IPU_PIX_FMT_RGB666;
985 pix_fmt = IPU_PIX_FMT_RGB565;
991 printf("Invalid %s bus width: %d\n", is_lvds() ? "LVDS" : "LCD",
996 int lvds_mapping = karo_fdt_get_lvds_mapping(working_fdt, 0);
997 int lvds_chan_mask = karo_fdt_get_lvds_channels(working_fdt);
1000 if (lvds_chan_mask == 0) {
1001 printf("No LVDS channel active\n");
1006 gpr2 = (lvds_mapping << 6) | (lvds_mapping << 8);
1007 if (lcd_bus_width == 24)
1008 gpr2 |= (1 << 5) | (1 << 7);
1009 gpr2 |= (lvds_chan_mask & 1) ? 1 << 0 : 0;
1010 gpr2 |= (lvds_chan_mask & 2) ? 3 << 2 : 0;
1011 debug("writing %08x to GPR2[%08x]\n", gpr2, IOMUXC_BASE_ADDR + 8);
1012 writel(gpr2, IOMUXC_BASE_ADDR + 8);
1014 if (karo_load_splashimage(0) == 0) {
1017 debug("Initializing LCD controller\n");
1018 ret = ipuv3_fb_init(p, 0, pix_fmt, DI_PCLK_PLL3, di_clk_rate, -1);
1020 printf("Failed to initialize FB driver: %d\n", ret);
1024 debug("Skipping initialization of LCD controller\n");
1028 #define lcd_enabled 0
1029 #endif /* CONFIG_LCD */
1031 static void stk5_board_init(void)
1033 gpio_request_array(stk5_gpios, ARRAY_SIZE(stk5_gpios));
1034 imx_iomux_v3_setup_multiple_pads(stk5_pads, ARRAY_SIZE(stk5_pads));
1037 static void stk5v3_board_init(void)
1042 static void stk5v5_board_init(void)
1046 gpio_request_one(IMX_GPIO_NR(4, 21), GPIOF_OUTPUT_INIT_HIGH,
1047 "Flexcan Transceiver");
1048 imx_iomux_v3_setup_pad(MX6_PAD_DISP0_DAT0__GPIO_4_21);
1051 static void tx6qdl_set_cpu_clock(void)
1053 unsigned long cpu_clk = getenv_ulong("cpu_clk", 10, 0);
1055 if (had_ctrlc() || (wrsr & WRSR_TOUT))
1058 if (cpu_clk == 0 || cpu_clk == mxc_get_clock(MXC_ARM_CLK) / 1000000)
1061 if (mxc_set_clock(CONFIG_SYS_MX6_HCLK, cpu_clk, MXC_ARM_CLK) == 0) {
1062 cpu_clk = mxc_get_clock(MXC_ARM_CLK);
1063 printf("CPU clock set to %lu.%03lu MHz\n",
1064 cpu_clk / 1000000, cpu_clk / 1000 % 1000);
1066 printf("Error: Failed to set CPU clock to %lu MHz\n", cpu_clk);
1070 static void tx6_init_mac(void)
1074 imx_get_mac_from_fuse(-1, mac);
1075 if (!is_valid_ether_addr(mac)) {
1076 printf("No valid MAC address programmed\n");
1080 printf("MAC addr from fuse: %pM\n", mac);
1081 eth_setenv_enetaddr("ethaddr", mac);
1084 int board_late_init(void)
1087 const char *baseboard;
1089 tx6qdl_set_cpu_clock();
1090 karo_fdt_move_fdt();
1092 baseboard = getenv("baseboard");
1096 printf("Baseboard: %s\n", baseboard);
1098 if (strncmp(baseboard, "stk5", 4) == 0) {
1099 if ((strlen(baseboard) == 4) ||
1100 strcmp(baseboard, "stk5-v3") == 0) {
1101 stk5v3_board_init();
1102 } else if (strcmp(baseboard, "stk5-v5") == 0) {
1103 const char *otg_mode = getenv("otg_mode");
1105 if (otg_mode && strcmp(otg_mode, "host") == 0) {
1106 printf("otg_mode='%s' is incompatible with baseboard %s; setting to 'none'\n",
1107 otg_mode, baseboard);
1108 setenv("otg_mode", "none");
1110 stk5v5_board_init();
1112 printf("WARNING: Unsupported STK5 board rev.: %s\n",
1116 printf("WARNING: Unsupported baseboard: '%s'\n",
1124 gpio_set_value(TX6_RESET_OUT_GPIO, 1);
1129 #ifdef CONFIG_TX6_V2
1130 #define TX6_FLASH_SZ 0
1132 #define TX6_FLASH_SZ (2 * (CONFIG_SYS_NAND_BLOCKS / 1024 - 1))
1135 int checkboard(void)
1137 u32 cpurev = get_cpu_rev();
1138 int cpu_variant = (cpurev >> 12) & 0xff;
1140 tx6qdl_print_cpuinfo();
1142 printf("Board: Ka-Ro TX6%c-%d%d1%d\n",
1143 cpu_variant == MXC_CPU_MX6Q ? 'Q' : 'U',
1144 cpu_variant == MXC_CPU_MX6Q ? 1 : 8,
1145 is_lvds(), 1 - PHYS_SDRAM_1_WIDTH / 64 +
1151 #ifdef CONFIG_SERIAL_TAG
1152 void get_board_serial(struct tag_serialnr *serialnr)
1154 struct ocotp_regs *ocotp = (struct ocotp_regs *)OCOTP_BASE_ADDR;
1155 struct fuse_bank0_regs *fuse = (void *)ocotp->bank[0].fuse_regs;
1157 serialnr->low = readl(&fuse->cfg0);
1158 serialnr->high = readl(&fuse->cfg1);
1162 #if defined(CONFIG_OF_BOARD_SETUP)
1163 #ifdef CONFIG_FDT_FIXUP_PARTITIONS
1164 #include <jffs2/jffs2.h>
1165 #include <mtd_node.h>
1166 static struct node_info nodes[] = {
1167 { "fsl,imx6q-gpmi-nand", MTD_DEV_TYPE_NAND, },
1170 #define fdt_fixup_mtdparts(b,n,c) do { } while (0)
1173 static const char *tx6_touchpanels[] = {
1179 void ft_board_setup(void *blob, bd_t *bd)
1181 const char *baseboard = getenv("baseboard");
1182 int stk5_v5 = baseboard != NULL && (strcmp(baseboard, "stk5-v5") == 0);
1183 const char *video_mode = karo_get_vmode(getenv("video_mode"));
1186 ret = fdt_increase_size(blob, 4096);
1188 printf("Failed to increase FDT size: %s\n", fdt_strerror(ret));
1191 karo_fdt_enable_node(blob, "stk5led", 0);
1193 fdt_fixup_mtdparts(blob, nodes, ARRAY_SIZE(nodes));
1194 fdt_fixup_ethernet(blob);
1196 karo_fdt_fixup_touchpanel(blob, tx6_touchpanels,
1197 ARRAY_SIZE(tx6_touchpanels));
1198 karo_fdt_fixup_usb_otg(blob, "usbotg", "fsl,usbphy", "vbus-supply");
1199 karo_fdt_fixup_flexcan(blob, stk5_v5);
1201 karo_fdt_update_fb_mode(blob, video_mode);
1203 #endif /* CONFIG_OF_BOARD_SETUP */