diff options
| author | Duncan Laurie <dlaurie@chromium.org> | 2016-09-19 17:22:10 -0700 |
|---|---|---|
| committer | Duncan Laurie <dlaurie@chromium.org> | 2016-09-19 19:05:10 -0700 |
| commit | a5e419c51187d24818f056327746a18676fe3a20 (patch) | |
| tree | d697ed9192b53e1515b0b8b9555af30ff0a6e532 /src/drivers/i2c/tpm/Kconfig | |
| parent | 3d43a7c111d00be246160a04023fe438ae0cac57 (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: I9f78f520fd089cb4471d8826a8cfecff67398bf8
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Diffstat (limited to 'src/drivers/i2c/tpm/Kconfig')
| -rw-r--r-- | src/drivers/i2c/tpm/Kconfig | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/src/drivers/i2c/tpm/Kconfig b/src/drivers/i2c/tpm/Kconfig index db77b956b9..a5ab0771c4 100644 --- a/src/drivers/i2c/tpm/Kconfig +++ b/src/drivers/i2c/tpm/Kconfig @@ -2,9 +2,14 @@ config I2C_TPM bool "I2C TPM" depends on TPM || TPM2 +config MAINBOARD_HAS_I2C_TPM_CR50 + bool + default n + choice prompt "I2C TPM Driver" - default I2C_TPM_GENERIC + default I2C_TPM_CR50 if MAINBOARD_HAS_I2C_TPM_CR50 + default I2C_TPM_GENERIC if !MAINBOARD_HAS_I2C_TPM_CR50 depends on I2C_TPM config I2C_TPM_GENERIC @@ -25,6 +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 |