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- // SPDX-License-Identifier: GPL-2.0+
- /*
- * board.c
- *
- * Board functions for Bosch Guardian
- *
- * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/
- * Copyright (C) 2018 Robert Bosch Power Tools GmbH
- */
- #include <common.h>
- #include <dm.h>
- #include <env_internal.h>
- #include <errno.h>
- #include <i2c.h>
- #include <led.h>
- #include <panel.h>
- #include <linux/delay.h>
- #include <asm/global_data.h>
- #include <power/tps65217.h>
- #include <spl.h>
- #include <watchdog.h>
- #include <asm/arch/clock.h>
- #include <asm/arch/cpu.h>
- #include <asm/arch/ddr_defs.h>
- #include <asm/arch/gpio.h>
- #include <asm/arch/hardware.h>
- #include <asm/arch/mem-guardian.h>
- #include <asm/arch/omap.h>
- #include <asm/arch/sys_proto.h>
- #include <asm/emif.h>
- #include <asm/gpio.h>
- #include <asm/io.h>
- #include <jffs2/load_kernel.h>
- #include <mtd.h>
- #include <nand.h>
- #include <video.h>
- #include <video_console.h>
- #include "board.h"
- DECLARE_GLOBAL_DATA_PTR;
- #ifndef CONFIG_SKIP_LOWLEVEL_INIT
- static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE;
- static const struct ddr_data ddr3_data = {
- .datardsratio0 = MT41K128M16JT125K_RD_DQS,
- .datawdsratio0 = MT41K128M16JT125K_WR_DQS,
- .datafwsratio0 = MT41K128M16JT125K_PHY_FIFO_WE,
- .datawrsratio0 = MT41K128M16JT125K_PHY_WR_DATA,
- };
- static const struct cmd_control ddr3_cmd_ctrl_data = {
- .cmd0csratio = MT41K128M16JT125K_RATIO,
- .cmd0iclkout = MT41K128M16JT125K_INVERT_CLKOUT,
- .cmd1csratio = MT41K128M16JT125K_RATIO,
- .cmd1iclkout = MT41K128M16JT125K_INVERT_CLKOUT,
- .cmd2csratio = MT41K128M16JT125K_RATIO,
- .cmd2iclkout = MT41K128M16JT125K_INVERT_CLKOUT,
- };
- static struct emif_regs ddr3_emif_reg_data = {
- .sdram_config = MT41K128M16JT125K_EMIF_SDCFG,
- .ref_ctrl = MT41K128M16JT125K_EMIF_SDREF,
- .sdram_tim1 = MT41K128M16JT125K_EMIF_TIM1,
- .sdram_tim2 = MT41K128M16JT125K_EMIF_TIM2,
- .sdram_tim3 = MT41K128M16JT125K_EMIF_TIM3,
- .zq_config = MT41K128M16JT125K_ZQ_CFG,
- .emif_ddr_phy_ctlr_1 = MT41K128M16JT125K_EMIF_READ_LATENCY,
- };
- #define OSC (V_OSCK / 1000000)
- const struct dpll_params dpll_ddr = {
- 400, OSC - 1, 1, -1, -1, -1, -1};
- void am33xx_spl_board_init(void)
- {
- int mpu_vdd;
- int usb_cur_lim;
- /* Get the frequency */
- dpll_mpu_opp100.m = am335x_get_efuse_mpu_max_freq(cdev);
- if (i2c_probe(TPS65217_CHIP_PM))
- return;
- /*
- * Increase USB current limit to 1300mA or 1800mA and set
- * the MPU voltage controller as needed.
- */
- if (dpll_mpu_opp100.m == MPUPLL_M_1000) {
- usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1800MA;
- mpu_vdd = TPS65217_DCDC_VOLT_SEL_1325MV;
- } else {
- usb_cur_lim = TPS65217_USB_INPUT_CUR_LIMIT_1300MA;
- mpu_vdd = TPS65217_DCDC_VOLT_SEL_1275MV;
- }
- if (tps65217_reg_write(TPS65217_PROT_LEVEL_NONE,
- TPS65217_POWER_PATH,
- usb_cur_lim,
- TPS65217_USB_INPUT_CUR_LIMIT_MASK))
- puts("tps65217_reg_write failure\n");
- /* Set DCDC3 (CORE) voltage to 1.125V */
- if (tps65217_voltage_update(TPS65217_DEFDCDC3,
- TPS65217_DCDC_VOLT_SEL_1125MV)) {
- puts("tps65217_voltage_update failure\n");
- return;
- }
- /* Set CORE Frequencies to OPP100 */
- do_setup_dpll(&dpll_core_regs, &dpll_core_opp100);
- /* Set DCDC2 (MPU) voltage */
- if (tps65217_voltage_update(TPS65217_DEFDCDC2, mpu_vdd)) {
- puts("tps65217_voltage_update failure\n");
- return;
- }
- /*
- * Set LDO3 to 1.8V and LDO4 to 3.3V
- */
- if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
- TPS65217_DEFLS1,
- TPS65217_LDO_VOLTAGE_OUT_1_8,
- TPS65217_LDO_MASK))
- puts("tps65217_reg_write failure\n");
- if (tps65217_reg_write(TPS65217_PROT_LEVEL_2,
- TPS65217_DEFLS2,
- TPS65217_LDO_VOLTAGE_OUT_3_3,
- TPS65217_LDO_MASK))
- puts("tps65217_reg_write failure\n");
- /* Set MPU Frequency to what we detected now that voltages are set */
- do_setup_dpll(&dpll_mpu_regs, &dpll_mpu_opp100);
- }
- const struct dpll_params *get_dpll_ddr_params(void)
- {
- enable_i2c0_pin_mux();
- i2c_init(CONFIG_SYS_OMAP24_I2C_SPEED, CONFIG_SYS_OMAP24_I2C_SLAVE);
- return &dpll_ddr;
- }
- void set_uart_mux_conf(void)
- {
- enable_uart0_pin_mux();
- }
- void set_mux_conf_regs(void)
- {
- enable_board_pin_mux();
- }
- const struct ctrl_ioregs ioregs = {
- .cm0ioctl = MT41K128M16JT125K_IOCTRL_VALUE,
- .cm1ioctl = MT41K128M16JT125K_IOCTRL_VALUE,
- .cm2ioctl = MT41K128M16JT125K_IOCTRL_VALUE,
- .dt0ioctl = MT41K128M16JT125K_IOCTRL_VALUE,
- .dt1ioctl = MT41K128M16JT125K_IOCTRL_VALUE,
- };
- void sdram_init(void)
- {
- config_ddr(400, &ioregs,
- &ddr3_data,
- &ddr3_cmd_ctrl_data,
- &ddr3_emif_reg_data, 0);
- }
- #endif
- int board_init(void)
- {
- save_omap_boot_params();
- #if defined(CONFIG_HW_WATCHDOG)
- hw_watchdog_init();
- #endif
- gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100;
- #ifdef CONFIG_MTD_RAW_NAND
- gpmc_init();
- #endif
- return 0;
- }
- #ifdef CONFIG_BOARD_LATE_INIT
- static void set_bootmode_env(void)
- {
- char *boot_mode_gpio = "gpio@44e07000_14";
- int ret;
- struct gpio_desc boot_mode_desc;
- ret = dm_gpio_lookup_name(boot_mode_gpio, &boot_mode_desc);
- if (ret) {
- printf("%s is not found\n", boot_mode_gpio);
- goto err;
- }
- ret = dm_gpio_request(&boot_mode_desc, "setup_bootmode_env");
- if (ret && ret != -EBUSY) {
- printf("requesting gpio: %s failed\n", boot_mode_gpio);
- goto err;
- }
- dm_gpio_set_dir_flags(&boot_mode_desc, GPIOD_IS_IN);
- udelay(10);
- ret = dm_gpio_get_value(&boot_mode_desc);
- if (ret == 0) {
- env_set("swi_status", "1");
- } else if (ret == 1) {
- env_set("swi_status", "0");
- } else {
- printf("swi status gpio error\n");
- goto err;
- }
- return;
- err:
- env_set("swi_status", "err");
- }
- void lcdbacklight_en(void)
- {
- unsigned long brightness = env_get_ulong("backlight_brightness", 10, 50);
- if (brightness > 99 || brightness == 0)
- brightness = 99;
- /*
- * Brightness range:
- * WLEDCTRL2 DUTY[6:0]
- *
- * 000 0000b = 1%
- * 000 0001b = 2%
- * ...
- * 110 0010b = 99%
- * 110 0011b = 100%
- *
- */
- tps65217_reg_write(TPS65217_PROT_LEVEL_NONE, TPS65217_WLEDCTRL2,
- brightness, 0xFF);
- tps65217_reg_write(TPS65217_PROT_LEVEL_NONE, TPS65217_WLEDCTRL1,
- brightness != 0 ? 0x0A : 0x02, 0xFF);
- }
- #if IS_ENABLED(CONFIG_AM335X_LCD)
- static void splash_screen(void)
- {
- struct udevice *video_dev;
- struct udevice *console_dev;
- struct video_priv *vid_priv;
- struct mtd_info *mtd;
- size_t len;
- int ret;
- struct mtd_device *mtd_dev;
- struct part_info *part;
- u8 pnum;
- ret = uclass_get_device(UCLASS_VIDEO, 0, &video_dev);
- if (ret != 0) {
- debug("video device not found\n");
- goto exit;
- }
- vid_priv = dev_get_uclass_priv(video_dev);
- mtdparts_init();
- if (find_dev_and_part(SPLASH_SCREEN_NAND_PART, &mtd_dev, &pnum, &part)) {
- debug("Could not find nand partition\n");
- goto splash_screen_text;
- }
- mtd = get_nand_dev_by_index(mtd_dev->id->num);
- if (!mtd) {
- debug("MTD partition is not valid\n");
- goto splash_screen_text;
- }
- len = SPLASH_SCREEN_BMP_FILE_SIZE;
- ret = nand_read_skip_bad(mtd, part->offset, &len, NULL,
- SPLASH_SCREEN_BMP_FILE_SIZE,
- (u_char *)SPLASH_SCREEN_BMP_LOAD_ADDR);
- if (ret != 0) {
- debug("Reading NAND partition failed\n");
- goto splash_screen_text;
- }
- ret = video_bmp_display(video_dev, SPLASH_SCREEN_BMP_LOAD_ADDR, 0, 0, false);
- if (ret != 0) {
- debug("No valid bmp image found!!\n");
- goto splash_screen_text;
- } else {
- goto exit;
- }
- splash_screen_text:
- vid_priv->colour_fg = CONSOLE_COLOR_RED;
- vid_priv->colour_bg = CONSOLE_COLOR_BLACK;
- if (!uclass_first_device_err(UCLASS_VIDEO_CONSOLE, &console_dev)) {
- debug("Found console\n");
- vidconsole_position_cursor(console_dev, 17, 7);
- vidconsole_put_string(console_dev, SPLASH_SCREEN_TEXT);
- } else {
- debug("No console device found\n");
- }
- exit:
- return;
- }
- #endif /* CONFIG_AM335X_LCD */
- int board_late_init(void)
- {
- int ret;
- struct udevice *cdev;
- #ifdef CONFIG_LED_GPIO
- led_default_state();
- #endif
- set_bootmode_env();
- ret = uclass_get_device(UCLASS_PANEL, 0, &cdev);
- if (ret) {
- debug("video panel not found: %d\n", ret);
- return ret;
- }
- lcdbacklight_en();
- if (IS_ENABLED(CONFIG_AM335X_LCD))
- splash_screen();
- return 0;
- }
- #endif /* CONFIG_BOARD_LATE_INIT */
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