| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright 2014 Google Inc. |
| * |
| * 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; version 2 of the License. |
| * |
| * 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. |
| */ |
| |
| #include <soc/addressmap.h> |
| #include <soc/funitcfg.h> |
| #include <soc/padconfig.h> |
| #include <soc/verstage.h> |
| #include <soc/nvidia/tegra/i2c.h> |
| #include "gpio.h" |
| #include "pmic.h" |
| |
| static const struct pad_config tpm_pads[] = { |
| PAD_CFG_SFIO(CAM_I2C_SCL, PINMUX_INPUT_ENABLE, I2C3), |
| PAD_CFG_SFIO(CAM_I2C_SDA, PINMUX_INPUT_ENABLE, I2C3), |
| }; |
| |
| static const struct pad_config ec_i2c_pads[] = { |
| PAD_CFG_SFIO(GEN2_I2C_SCL, PINMUX_OPEN_DRAIN|PINMUX_INPUT_ENABLE, I2C2), |
| PAD_CFG_SFIO(GEN2_I2C_SDA, PINMUX_OPEN_DRAIN|PINMUX_INPUT_ENABLE, I2C2), |
| }; |
| |
| static const struct funit_cfg funits[] = { |
| /* TPM on I2C3 @ 400kHz */ |
| FUNIT_CFG(I2C3, PLLP, 400, tpm_pads, ARRAY_SIZE(tpm_pads)), |
| /* EC on I2C2 - pulled to 3.3V @ 100kHz */ |
| FUNIT_CFG(I2C2, PLLP, 100, ec_i2c_pads, ARRAY_SIZE(ec_i2c_pads)), |
| }; |
| |
| void verstage_mainboard_init(void) |
| { |
| soc_configure_funits(funits, ARRAY_SIZE(funits)); |
| |
| /* TPM */ |
| i2c_init(I2C3_BUS); |
| /* EC */ |
| i2c_init(I2C2_BUS); |
| } |