bootblock.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <bootblock_common.h>
#include <soc/soc.h>
#include <soc/spi.h>
#include <soc/uart.h>
 
void bootblock_mainboard_early_init(void)
{
        if (CONFIG(BOOTBLOCK_CONSOLE)) {
                if (!uart_is_enabled(CONFIG_UART_FOR_CONSOLE))
                        uart_setup(CONFIG_UART_FOR_CONSOLE, CONFIG_TTYS0_BAUD);
        }
}
 
static void configure_spi_flash(void)
{
        /* FIXME: Only tested on EM100 Pro */
        spi_init_custom(0, // bus
                        25000000, // speed Hz
                        0, // idle low disabled
                        0, // zero idle cycles between transfers
                        0, // MSB first
                        0, // Chip select 0
                        1); // assert is high
}
 
void bootblock_mainboard_init(void)
{
        configure_spi_flash();
}