The TPM specification says that the EXPECT_DATA bit is not valid until
the VALID bit is set. Wait for that bit to be set. Fixes problems with
Ifineon SPI TPM.
Signed-off-by: Roman Kapl <rka@sysgo.com>
+static u8 tpm_tis_spi_valid_status(struct udevice *dev, u8 *status)
+{
+ struct tpm_chip *chip = dev_get_priv(dev);
+
+ return tpm_tis_spi_wait_for_stat(dev, TPM_STS_VALID,
+ chip->timeout_c, status);
+}
+
static int tpm_tis_spi_get_burstcount(struct udevice *dev)
{
struct tpm_chip *chip = dev_get_priv(dev);
static int tpm_tis_spi_get_burstcount(struct udevice *dev)
{
struct tpm_chip *chip = dev_get_priv(dev);
- ret = tpm_tis_spi_status(dev, &status);
+ ret = tpm_tis_spi_valid_status(dev, &status);
- ret = tpm_tis_spi_status(dev, &status);
+ ret = tpm_tis_spi_valid_status(dev, &status);