diff options
Diffstat (limited to 'src/mainboard/intel/galileo/gen1.h')
| -rw-r--r-- | src/mainboard/intel/galileo/gen1.h | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/src/mainboard/intel/galileo/gen1.h b/src/mainboard/intel/galileo/gen1.h index 23b23091d2..524daf8f67 100644 --- a/src/mainboard/intel/galileo/gen1.h +++ b/src/mainboard/intel/galileo/gen1.h @@ -1,7 +1,7 @@ /* * This file is part of the coreboot project. * - * Copyright (C) 2016 Intel Corp. + * Copyright (C) 2016-2017 Intel Corp. * * 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 @@ -150,3 +150,29 @@ static const struct reg_script gen1_i2c_0x21_init[] = { REG_SCRIPT_END }; + +static const struct reg_script gen1_tpm_reset_0x20[] = { + /* Reset the TPM using SW_RESET_N_SHLD (GPORT5_BIT1): + * low, output, delay, input + */ + REG_I2C_AND(GEN1_I2C_GPIO_EXP_0x20, GEN1_GPIO_EXP_OUTPUT5, ~BIT1), + REG_I2C_WRITE(GEN1_I2C_GPIO_EXP_0x20, GEN1_GPIO_EXP_PORT_SELECT, 5), + REG_I2C_AND(GEN1_I2C_GPIO_EXP_0x20, GEN1_GPIO_EXP_PORT_DIR, ~BIT1), + TIME_DELAY_USEC(5), + REG_I2C_OR(GEN1_I2C_GPIO_EXP_0x20, GEN1_GPIO_EXP_PORT_DIR, BIT1), + + REG_SCRIPT_END +}; + +static const struct reg_script gen1_tpm_reset_0x21[] = { + /* Reset the TPM using SW_RESET_N_SHLD (GPORT5_BIT1): + * low, output, delay, input + */ + REG_I2C_AND(GEN1_I2C_GPIO_EXP_0x21, GEN1_GPIO_EXP_OUTPUT5, ~BIT1), + REG_I2C_WRITE(GEN1_I2C_GPIO_EXP_0x21, GEN1_GPIO_EXP_PORT_SELECT, 5), + REG_I2C_AND(GEN1_I2C_GPIO_EXP_0x21, GEN1_GPIO_EXP_PORT_DIR, ~BIT1), + TIME_DELAY_USEC(5), + REG_I2C_OR(GEN1_I2C_GPIO_EXP_0x21, GEN1_GPIO_EXP_PORT_DIR, BIT1), + + REG_SCRIPT_END +}; |