bootblock.c

Go to the documentation of this file.

/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <device/mmio.h>
#include <bootblock_common.h>
#include <console/uart.h>
#include <soc/ti/am335x/clock.h>
#include <soc/ti/am335x/gpio.h>
#include <soc/ti/am335x/pinmux.h>
 
#include "leds.h"
 
void bootblock_mainboard_early_init(void)
{
        write32(&am335x_cm_wkup->wkup_gpio0, CM_ST_SW_WKUP | CM_FCLK_EN);
        write32(&am335x_cm_per->gpio1, CM_ST_SW_WKUP | CM_FCLK_EN);
        write32(&am335x_cm_per->gpio2, CM_ST_SW_WKUP | CM_FCLK_EN);
        write32(&am335x_cm_per->gpio3, CM_ST_SW_WKUP | CM_FCLK_EN);
 
        am335x_disable_gpio_irqs();
 
        beaglebone_leds_init();
        beaglebone_leds_set(BEAGLEBONE_LED_USR0, 1);
        beaglebone_leds_set(BEAGLEBONE_LED_USR1, 0);
        beaglebone_leds_set(BEAGLEBONE_LED_USR2, 1);
        beaglebone_leds_set(BEAGLEBONE_LED_USR3, 0);
 
        /* Set up the UART we're going to use */
        if (CONFIG_UART_FOR_CONSOLE == 0) {
                am335x_pinmux_uart0();
                write32(&am335x_cm_wkup->wkup_uart0, CM_ST_SW_WKUP);
        } else if (CONFIG_UART_FOR_CONSOLE == 1) {
                am335x_pinmux_uart1();
                write32(&am335x_cm_per->uart1, CM_ST_SW_WKUP);
        } else if (CONFIG_UART_FOR_CONSOLE == 2) {
                am335x_pinmux_uart2();
                write32(&am335x_cm_per->uart2, CM_ST_SW_WKUP);
        } else if (CONFIG_UART_FOR_CONSOLE == 3) {
                am335x_pinmux_uart3();
                write32(&am335x_cm_per->uart3, CM_ST_SW_WKUP);
        } else if (CONFIG_UART_FOR_CONSOLE == 4) {
                am335x_pinmux_uart4();
                write32(&am335x_cm_per->uart4, CM_ST_SW_WKUP);
        } else if (CONFIG_UART_FOR_CONSOLE == 5) {
                am335x_pinmux_uart5();
                write32(&am335x_cm_per->uart5, CM_ST_SW_WKUP);
        }
 
        /* Start monotonic timer */
        //rtc_start();
}