src/mainboard/intel/kblrvp/ramstage.c

/* SPDX-License-Identifier: GPL-2.0-only */

#include <bootstate.h>
#include <console/console.h>
#include <device/i2c_simple.h>
#include <soc/ramstage.h>
#include <variant/gpio.h>

void mainboard_silicon_init_params(FSP_SIL_UPD *params)
{
	/* Configure pads prior to SiliconInit() in case there's any
	 * dependencies during hardware initialization. */
	gpio_configure_pads(gpio_table, ARRAY_SIZE(gpio_table));
	params->CdClock = 3;
}

static void ioexpander_init(void *unused)
{
	if (CONFIG(BOARD_INTEL_KBLRVP11))
		return;

	printk(BIOS_DEBUG, "Programming TCA6424A I/O expander\n");

	/* I/O Expander 1, Port 0 Data */
	i2c_writeb(IO_EXPANDER_BUS, IO_EXPANDER_0_ADDR, IO_EXPANDER_P0DOUT,
		0xF7);
	/* Port 0 Configuration */
	i2c_writeb(IO_EXPANDER_BUS, IO_EXPANDER_0_ADDR, IO_EXPANDER_P0CONF,
		0xE0);

	/* Port 1 Data */
	i2c_writeb(IO_EXPANDER_BUS, IO_EXPANDER_0_ADDR, IO_EXPANDER_P1DOUT,
		0x9E);
	/* Port 1 Configuration */
	i2c_writeb(IO_EXPANDER_BUS, IO_EXPANDER_0_ADDR, IO_EXPANDER_P1CONF,
		0x8C);

	/* Port 2 Data */
	i2c_writeb(IO_EXPANDER_BUS, IO_EXPANDER_0_ADDR, IO_EXPANDER_P2DOUT,
		0xDA);
	/* Port 2 Configuration */
	i2c_writeb(IO_EXPANDER_BUS, IO_EXPANDER_0_ADDR, IO_EXPANDER_P2CONF,
		0x08);

	/* I/O Expander 2, Port 0 Data */
	i2c_writeb(IO_EXPANDER_BUS, IO_EXPANDER_1_ADDR, IO_EXPANDER_P0DOUT,
		0xFF);
	/* Port 0 Configuration */
	i2c_writeb(IO_EXPANDER_BUS, IO_EXPANDER_1_ADDR, IO_EXPANDER_P0CONF,
		0x00);
}

BOOT_STATE_INIT_ENTRY(BS_POST_DEVICE, BS_ON_EXIT, ioexpander_init, NULL);