bootblock.c

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/* SPDX-License-Identifier: GPL-2.0-only */
 
#include <bootblock_common.h>
#include <device/pnp_type.h>
#include <southbridge/amd/pi/hudson/hudson.h>
#include <superio/nuvoton/common/nuvoton.h>
#include <superio/nuvoton/nct5104d/nct5104d.h>
 
#define SIO_PORT 0x2e
#define SERIAL1_DEV PNP_DEV(SIO_PORT, NCT5104D_SP1)
#define SERIAL2_DEV PNP_DEV(SIO_PORT, NCT5104D_SP2)
 
void bootblock_mainboard_early_init(void)
{
        hudson_lpc_port80();
        hudson_clk_output_48Mhz();
 
        /* COM2 on apu5 is reserved so only COM1 should be supported */
        if ((CONFIG_UART_FOR_CONSOLE == 1) &&
                !CONFIG(BOARD_PCENGINES_APU5))
                nuvoton_enable_serial(SERIAL2_DEV, CONFIG_TTYS0_BASE);
        else if (CONFIG_UART_FOR_CONSOLE == 0)
                nuvoton_enable_serial(SERIAL1_DEV, CONFIG_TTYS0_BASE);
}