src/board/edgar/board.c

/*
 * Copyright 2013 Google Inc.
 *
 * See file CREDITS for list of people who contributed to this
 * project.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of
 * the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but without any warranty; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 * MA 02111-1307 USA
 */

#include <pci/pci.h>

#include "config.h"
#include "base/init_funcs.h"
#include "board/edgar/device_nvs.h"
#include "drivers/bus/i2c/designware.h"
#include "drivers/bus/i2s/braswell/braswell-rt5645.h"
#include "drivers/ec/cros/lpc.h"
#include "drivers/flash/flash.h"
#include "drivers/flash/memmapped.h"
#include "drivers/gpio/braswell.h"
#include "drivers/gpio/sysinfo.h"
#include "drivers/power/pch.h"
#include "drivers/sound/i2s.h"
#include "drivers/storage/blockdev.h"
#include "drivers/storage/sdhci.h"
#include "drivers/bus/usb/usb.h"
#include "drivers/tpm/lpc.h"
#include "vboot/util/flag.h"
#include "drivers/sound/rt5645.h"

/*
 * Clock frequencies for the eMMC and SD ports are defined below. The minimum
 * frequency is the same for both interfaces, the firmware does not run any
 * interface faster than 52 MHz, but defines maximum eMMC frequency as 200 MHz
 * for proper divider settings.
 */
static const int emmc_sd_clock_min = 400 * 1000;
static const int emmc_clock_max = 200 * 1000 * 1000;
static const int sd_clock_max = 52 * 1000 * 1000;
static const int SATA_LEDN = 77; /*EC_IN_RW GPIO*/

static CrosEcLpcBus *cros_ec_lpc_bus;

static int read_ec_memmap(void) {
	u8 ec_switches;
	cros_ec_lpc_bus->ops.read(&ec_switches,
		EC_LPC_ADDR_MEMMAP + EC_MEMMAP_SWITCHES, 1);
	return ec_switches;
}

static int get_lid_sw(GpioOps *me) {
	return read_ec_memmap() & EC_SWITCH_LID_OPEN;
}

static int get_pwr_btn(GpioOps *me) {
	return read_ec_memmap() & EC_SWITCH_POWER_BUTTON_PRESSED;
}

static int board_setup(void)
{
	device_nvs_t *nvs = lib_sysinfo.acpi_gnvs + DEVICE_NVS_OFFSET;
	GpioOps *ec_in_rw;
	GpioCfg *cfg = new_braswell_gpio_input(GP_SOUTHWEST, SATA_LEDN);
	ec_in_rw = &cfg->ops;
	static GpioOps lidops = {get_lid_sw, NULL};
	static GpioOps pwrbtnops = {get_pwr_btn, NULL};
	cros_ec_lpc_bus = new_cros_ec_lpc_bus(CROS_EC_LPC_BUS_MEC);
	cros_ec_set_bus(&cros_ec_lpc_bus->ops);

	sysinfo_install_flags(NULL);
	flag_replace(FLAG_LIDSW, &lidops);
	flag_replace(FLAG_PWRSW, &pwrbtnops);
	flag_install(FLAG_ECINRW, ec_in_rw);

	flash_set_ops(&new_mem_mapped_flash(0xff800000, 0x800000)->ops);

	power_set_ops(&braswell_power_ops);

	uintptr_t lpe_mmio = nvs->lpe_bar0;
	if (!nvs->lpe_en) {
		pcidev_t lpe_pcidev = PCI_DEV(0, 0x15, 0);
		lpe_mmio = pci_read_config32(lpe_pcidev, PCI_BASE_ADDRESS_0);
	}
	BswI2s *i2s = new_bsw_i2s(lpe_mmio, &braswell_rt5645_settings,
				16, 2,4800000, 48000);

	I2sSource *i2s_source = new_i2s_source(&i2s->ops, 48000, 2, 16000);

	SoundRoute *sound_route = new_sound_route(&i2s_source->ops);

	die_if(!nvs->lpss_en[LPSS_NVS_I2C5], "Codec I2C misconfigured\n");

	DesignwareI2c *i2c = new_designware_i2c(
		nvs->lpss_bar0[LPSS_NVS_I2C5], 400000);

	rt5645Codec *codec = new_rt5645_codec(&i2c->ops, 0x1a);

	list_insert_after(&codec->component.list_node,
			  &sound_route->components);

	sound_set_ops(&sound_route->ops);
	tpm_set_ops(&new_lpc_tpm((void *)0xfed40000)->ops);

	SdhciHost *emmc, *sd;

	if (nvs->scc_en[SCC_NVS_MMC])
		emmc = new_mem_sdhci_host((void *)nvs->scc_bar0[SCC_NVS_MMC],
					  0, emmc_sd_clock_min, emmc_clock_max);
	else
		emmc = new_pci_sdhci_host(PCI_DEV(0, 0x10, 0), 0,
				emmc_sd_clock_min, emmc_clock_max);

	list_insert_after(&emmc->mmc_ctrlr.ctrlr.list_node,
			&fixed_block_dev_controllers);

	if (nvs->scc_en[SCC_NVS_SD])
		sd = new_mem_sdhci_host((void *)nvs->scc_bar0[SCC_NVS_SD],
					  1, emmc_sd_clock_min, sd_clock_max);
	else
		sd = new_pci_sdhci_host(PCI_DEV(0, 0x12, 0), 1,
				emmc_sd_clock_min, sd_clock_max);

	list_insert_after(&sd->mmc_ctrlr.ctrlr.list_node,
			&removable_block_dev_controllers);

	return 0;
}

INIT_FUNC(board_setup);