diff options
Diffstat (limited to 'roms/u-boot/board/siemens/common/board.c')
| -rw-r--r-- | roms/u-boot/board/siemens/common/board.c | 273 |
1 files changed, 273 insertions, 0 deletions
diff --git a/roms/u-boot/board/siemens/common/board.c b/roms/u-boot/board/siemens/common/board.c new file mode 100644 index 000000000..1bdf404ac --- /dev/null +++ b/roms/u-boot/board/siemens/common/board.c @@ -0,0 +1,273 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Common board functions for siemens AM335X based boards + * (C) Copyright 2013 Siemens Schweiz AG + * (C) Heiko Schocher, DENX Software Engineering, hs@denx.de. + * + * Based on: + * U-Boot file:/board/ti/am335x/board.c + * Copyright (C) 2011, Texas Instruments, Incorporated - http://www.ti.com/ + */ + +#include <common.h> +#include <command.h> +#include <env.h> +#include <errno.h> +#include <init.h> +#include <malloc.h> +#include <serial.h> +#include <spl.h> +#include <asm/arch/cpu.h> +#include <asm/arch/hardware.h> +#include <asm/arch/omap.h> +#include <asm/arch/ddr_defs.h> +#include <asm/arch/clock.h> +#include <asm/arch/gpio.h> +#include <asm/arch/mmc_host_def.h> +#include <asm/arch/sys_proto.h> +#include <asm/global_data.h> +#include <asm/io.h> +#include <asm/emif.h> +#include <asm/gpio.h> +#include <i2c.h> +#include <miiphy.h> +#include <cpsw.h> +#include <watchdog.h> +#include <asm/mach-types.h> +#include "../common/factoryset.h" + +DECLARE_GLOBAL_DATA_PTR; + +#ifdef CONFIG_SPL_BUILD +void set_uart_mux_conf(void) +{ + enable_uart0_pin_mux(); +} + +void set_mux_conf_regs(void) +{ + /* Initalize the board header */ + enable_i2c0_pin_mux(); + i2c_set_bus_num(0); + + /* enable early the console */ + gd->baudrate = CONFIG_BAUDRATE; + serial_init(); + gd->have_console = 1; + if (read_eeprom() < 0) + puts("Could not get board ID.\n"); + + enable_board_pin_mux(); +} + +void sdram_init(void) +{ + spl_siemens_board_init(); + board_init_ddr(); + + return; +} +#endif /* #ifdef CONFIG_SPL_BUILD */ + +#ifndef CONFIG_SPL_BUILD +/* + * Basic board specific setup. Pinmux has been handled already. + */ +int board_init(void) +{ +#if defined(CONFIG_HW_WATCHDOG) + hw_watchdog_init(); +#endif /* defined(CONFIG_HW_WATCHDOG) */ + i2c_set_bus_num(0); + if (read_eeprom() < 0) + puts("Could not get board ID.\n"); +#ifdef CONFIG_MACH_TYPE + gd->bd->bi_arch_number = CONFIG_MACH_TYPE; +#endif + gd->bd->bi_boot_params = CONFIG_SYS_SDRAM_BASE + 0x100; + +#ifdef CONFIG_FACTORYSET + factoryset_read_eeprom(CONFIG_SYS_I2C_EEPROM_ADDR); +#endif + + gpmc_init(); + +#ifdef CONFIG_NAND_CS_INIT + board_nand_cs_init(); +#endif +#ifdef CONFIG_VIDEO + board_video_init(); +#endif + + return 0; +} +#endif /* #ifndef CONFIG_SPL_BUILD */ + +#define OSC (V_OSCK/1000000) +const struct dpll_params dpll_ddr = { + DDR_PLL_FREQ, OSC-1, 1, -1, -1, -1, -1}; + +const struct dpll_params *get_dpll_ddr_params(void) +{ + return &dpll_ddr; +} + +#ifndef CONFIG_SPL_BUILD + +#define MAX_NR_LEDS 10 +#define MAX_PIN_NUMBER 128 +#define STARTUP 0 + +#if defined(BOARD_DFU_BUTTON_GPIO) +unsigned char get_button_state(char * const envname, unsigned char def) +{ + int button = 0; + int gpio; + char *ptr_env; + + /* If button is not found we take default */ + ptr_env = env_get(envname); + if (NULL == ptr_env) { + gpio = def; + } else { + gpio = (unsigned char)simple_strtoul(ptr_env, NULL, 0); + if (gpio > MAX_PIN_NUMBER) + gpio = def; + } + + gpio_request(gpio, ""); + gpio_direction_input(gpio); + if (gpio_get_value(gpio)) + button = 1; + else + button = 0; + + gpio_free(gpio); + + return button; +} +/** + * This command returns the status of the user button on + * Input - none + * Returns - 1 if button is held down + * 0 if button is not held down + */ +static int +do_userbutton(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) +{ + int button = 0; + button = get_button_state("button_dfu0", BOARD_DFU_BUTTON_GPIO); + button |= get_button_state("button_dfu1", BOARD_DFU_BUTTON_GPIO); + return button; +} + +U_BOOT_CMD( + dfubutton, CONFIG_SYS_MAXARGS, 1, do_userbutton, + "Return the status of the DFU button", + "" +); +#endif + +static int +do_usertestwdt(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[]) +{ + printf("\n\n\n Go into infinite loop\n\n\n"); + while (1) + ; + return 0; +}; + +U_BOOT_CMD( + testwdt, CONFIG_SYS_MAXARGS, 1, do_usertestwdt, + "Sends U-Boot into infinite loop", + "" +); + +/** + * Get led gpios from env and set them. + * The led define in environment need to need to be of the form ledN=NN,S0,S1 + * where N is an unsigned integer from 0 to 9 and S0 and S1 is 0 or 1. S0 + * defines the startup state of the led, S1 the special state of the led when + * it enters e.g. dfu mode. + */ +void set_env_gpios(unsigned char state) +{ + char *ptr_env; + char str_tmp[5]; /* must contain "ledX"*/ + unsigned char i, idx, pos1, pos2, ccount; + unsigned char gpio_n, gpio_s0, gpio_s1; + + for (i = 0; i < MAX_NR_LEDS; i++) { + sprintf(str_tmp, "led%d", i); + + /* If env var is not found we stop */ + ptr_env = env_get(str_tmp); + if (NULL == ptr_env) + break; + + /* Find sperators position */ + pos1 = 0; + pos2 = 0; + ccount = 0; + for (idx = 0; ptr_env[idx] != '\0'; idx++) { + if (ptr_env[idx] == ',') { + if (ccount++ < 1) + pos1 = idx; + else + pos2 = idx; + } + } + /* Bad led description skip this definition */ + if (pos2 <= pos1 || ccount > 2) + continue; + + /* Get pin number and request gpio */ + memset(str_tmp, 0, sizeof(str_tmp)); + strncpy(str_tmp, ptr_env, pos1*sizeof(char)); + gpio_n = (unsigned char)simple_strtoul(str_tmp, NULL, 0); + + /* Invalid gpio number skip definition */ + if (gpio_n > MAX_PIN_NUMBER) + continue; + + gpio_request(gpio_n, ""); + + if (state == STARTUP) { + /* get pin state 0 and set */ + memset(str_tmp, 0, sizeof(str_tmp)); + strncpy(str_tmp, ptr_env+pos1+1, + (pos2-pos1-1)*sizeof(char)); + gpio_s0 = (unsigned char)simple_strtoul(str_tmp, NULL, + 0); + + gpio_direction_output(gpio_n, gpio_s0); + + } else { + /* get pin state 1 and set */ + memset(str_tmp, 0, sizeof(str_tmp)); + strcpy(str_tmp, ptr_env+pos2+1); + gpio_s1 = (unsigned char)simple_strtoul(str_tmp, NULL, + 0); + gpio_direction_output(gpio_n, gpio_s1); + } + } /* loop through defined led in environment */ +} + +static int do_board_led(struct cmd_tbl *cmdtp, int flag, int argc, + char *const argv[]) +{ + if (argc != 2) + return CMD_RET_USAGE; + if ((unsigned char)simple_strtoul(argv[1], NULL, 0) == STARTUP) + set_env_gpios(0); + else + set_env_gpios(1); + return 0; +}; + +U_BOOT_CMD( + draco_led, CONFIG_SYS_MAXARGS, 2, do_board_led, + "Set LEDs defined in environment", + "<0|1>" +); +#endif /* !CONFIG_SPL_BUILD */ |