0f2dd1eff9
Split `i2c.h` into three pieces to ease reuse of the generic defi-
nitions. No code is changed.
* `i2c.h` - keeps the generic definitions
* `i2c_simple.h` - holds the current, limited to one controller driver
per board, devicetree independent I2C interface
* `i2c_bus.h` - will become the devicetree compatible interface for
native I2C (e.g. non-SMBus) controllers
Change-Id: I382d45c70f9314588663e1284f264f877469c74d
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/20845
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
100 lines
2.4 KiB
C
100 lines
2.4 KiB
C
/*
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* Copyright (C) 2016-2017 Intel Corporation
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but without any warranty; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include <assert.h>
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#include <bootmode.h>
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#include <console/console.h>
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#include <delay.h>
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#include <device/i2c_simple.h>
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#include <lib.h>
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#include <soc/i2c.h>
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#include <soc/reg_access.h>
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#include "reg_access.h"
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#include "gen1.h"
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#include "gen2.h"
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#include <spi_flash.h>
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#include <vboot/vboot_common.h>
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int clear_recovery_mode_switch(void)
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{
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/* Nothing to do */
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return 0;
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}
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int get_recovery_mode_switch(void)
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{
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return 0;
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}
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int get_write_protect_state(void)
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{
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/* Not write protected */
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return 0;
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}
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void log_recovery_mode_switch(void)
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{
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}
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void verstage_mainboard_init(void)
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{
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const struct reg_script *script;
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/* Crypto Shield I2C Addresses:
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*
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* 0x29: AT97S3204T - TPM 1.2
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* 0x50: ATAES132 - AES-128
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* 0x60: ATECC108 - Elliptical Curve
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* 0x64: ATSHA204 - SHA-256
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* 0x68: DS3231M - RTC
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*/
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/* Determine the correct script for the board */
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if (IS_ENABLED(CONFIG_GALILEO_GEN2))
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script = gen2_i2c_init;
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else
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/* Determine which I2C address is in use */
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script = (reg_legacy_gpio_read (R_QNC_GPIO_RGLVL_RESUME_WELL)
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& GALILEO_DETERMINE_IOEXP_SLA_RESUMEWELL_GPIO)
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? gen1_i2c_0x20_init : gen1_i2c_0x21_init;
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/* Direct the I2C SDA and SCL signals to the Arduino connector */
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reg_script_run(script);
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}
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void __attribute__((weak)) vboot_platform_prepare_reboot(void)
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{
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const struct reg_script *script;
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/* Crypto Shield I2C Addresses:
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*
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* 0x29: AT97S3204T - TPM 1.2
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* 0x50: ATAES132 - AES-128
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* 0x60: ATECC108 - Elliptical Curve
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* 0x64: ATSHA204 - SHA-256
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* 0x68: DS3231M - RTC
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*/
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/* Determine the correct script for the board */
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if (IS_ENABLED(CONFIG_GALILEO_GEN2))
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script = gen2_tpm_reset;
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else
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/* Determine which I2C address is in use */
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script = (reg_legacy_gpio_read (R_QNC_GPIO_RGLVL_RESUME_WELL)
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& GALILEO_DETERMINE_IOEXP_SLA_RESUMEWELL_GPIO)
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? gen1_tpm_reset_0x20 : gen1_tpm_reset_0x21;
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/* Reset the TPM */
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reg_script_run(script);
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}
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