diff options
| author | Duncan Laurie <dlaurie@chromium.org> | 2016-09-19 17:22:10 -0700 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2016-09-21 10:46:51 +0200 |
| commit | 94cc485338a30c50c74a7bb02d14a52f35ff41c3 (patch) | |
| tree | 6569cdf74de31ce07687dadec8475ee0e6b2dfe6 /src/drivers/i2c/tpm/Kconfig | |
| parent | 2e79009503bcb0bc324ca60f9d4a9121dcdcbf84 (diff) | |
drivers/i2c/tpm/cr50: Support interrupts for status
Support reading the ACPI GPE status (on x86) to determine when
the cr50 is ready to return response data or is done processing
written data. If the interrupt is not defined by Kconfig then
it will continue to use the safe delay.
This was tested with reef hardware and a modified cr50 image
that generates interrupts at the intended points.
BUG=chrome-os-partner:53336
Change-Id: Ic8f805159650c45382cacac8840450a1f8b4d7a1
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://review.coreboot.org/16672
Tested-by: build bot (Jenkins)
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src/drivers/i2c/tpm/Kconfig')
| -rw-r--r-- | src/drivers/i2c/tpm/Kconfig | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/drivers/i2c/tpm/Kconfig b/src/drivers/i2c/tpm/Kconfig index 1725eaf0ff..a5ab0771c4 100644 --- a/src/drivers/i2c/tpm/Kconfig +++ b/src/drivers/i2c/tpm/Kconfig @@ -30,6 +30,11 @@ config DRIVER_TPM_I2C_ADDR default 2 # FIXME, workaround for Kconfig BS depends on I2C_TPM +config DRIVER_TPM_I2C_IRQ + int "IRQ or GPE to use for TPM interrupt" + default -1 + depends on I2C_TPM + config DRIVER_I2C_TPM_ACPI bool "Generate I2C TPM ACPI device" default y if ARCH_X86 && I2C_TPM |