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Diffstat (limited to 'src/mainboard/intel/galileo/gen1.h')
-rw-r--r--src/mainboard/intel/galileo/gen1.h28
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
+};