src/mainboard/ti/beaglebone/bootblock.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <device/mmio.h>
   4 #include <bootblock_common.h>
   5 #include <console/uart.h>
   6 #include <soc/ti/am335x/clock.h>
   7 #include <soc/ti/am335x/gpio.h>
   8 #include <soc/ti/am335x/pinmux.h>
   9
  10 #include "leds.h"
  11
  12 void bootblock_mainboard_early_init(void)
  13 {
  14         write32(&am335x_cm_wkup->wkup_gpio0, CM_ST_SW_WKUP | CM_FCLK_EN);
  15         write32(&am335x_cm_per->gpio1, CM_ST_SW_WKUP | CM_FCLK_EN);
  16         write32(&am335x_cm_per->gpio2, CM_ST_SW_WKUP | CM_FCLK_EN);
  17         write32(&am335x_cm_per->gpio3, CM_ST_SW_WKUP | CM_FCLK_EN);
  18
  19         am335x_disable_gpio_irqs();
  20
  21         beaglebone_leds_init();
  22         beaglebone_leds_set(BEAGLEBONE_LED_USR0, 1);
  23         beaglebone_leds_set(BEAGLEBONE_LED_USR1, 0);
  24         beaglebone_leds_set(BEAGLEBONE_LED_USR2, 1);
  25         beaglebone_leds_set(BEAGLEBONE_LED_USR3, 0);
  26
  27         /* Set up the UART we're going to use */
  28         if (CONFIG_UART_FOR_CONSOLE == 0) {
  29                 am335x_pinmux_uart0();
  30                 write32(&am335x_cm_wkup->wkup_uart0, CM_ST_SW_WKUP);
  31         } else if (CONFIG_UART_FOR_CONSOLE == 1) {
  32                 am335x_pinmux_uart1();
  33                 write32(&am335x_cm_per->uart1, CM_ST_SW_WKUP);
  34         } else if (CONFIG_UART_FOR_CONSOLE == 2) {
  35                 am335x_pinmux_uart2();
  36                 write32(&am335x_cm_per->uart2, CM_ST_SW_WKUP);
  37         } else if (CONFIG_UART_FOR_CONSOLE == 3) {
  38                 am335x_pinmux_uart3();
  39                 write32(&am335x_cm_per->uart3, CM_ST_SW_WKUP);
  40         } else if (CONFIG_UART_FOR_CONSOLE == 4) {
  41                 am335x_pinmux_uart4();
  42                 write32(&am335x_cm_per->uart4, CM_ST_SW_WKUP);
  43         } else if (CONFIG_UART_FOR_CONSOLE == 5) {
  44                 am335x_pinmux_uart5();
  45                 write32(&am335x_cm_per->uart5, CM_ST_SW_WKUP);
  46         }
  47
  48         /* Start monotonic timer */
  49         //rtc_start();
  50 }