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	static bool			static bool
	tpmtis_go_ready(struct tpm_sc *sc)			tpmtis_go_ready(struct tpm_sc *sc)
	{			{
	uint32_t mask;			uint32_t mask;

	mask = TPM_STS_CMD_RDY;			mask = TPM_STS_CMD_RDY;
	sc->intr_type = TPM_INT_STS_CMD_RDY;			sc->intr_type = TPM_INT_STS_CMD_RDY;

	OR4(sc, TPM_STS, TPM_STS_CMD_RDY);			WR4(sc, TPM_STS, TPM_STS_CMD_RDY);
	bus_barrier(sc->mem_res, TPM_STS, 4, BUS_SPACE_BARRIER_WRITE);			bus_barrier(sc->mem_res, TPM_STS, 4, BUS_SPACE_BARRIER_WRITE);
	if (!tpm_wait_for_u32(sc, TPM_STS, mask, mask, TPM_TIMEOUT_B))			if (!tpm_wait_for_u32(sc, TPM_STS, mask, mask, TPM_TIMEOUT_B))
	return (false);			return (false);

	AND4(sc, TPM_STS, ~TPM_STS_CMD_RDY);
	return (true);			return (true);
	}			}

	static int			static int
	tpmtis_transmit(struct tpm_sc *sc, size_t length)			tpmtis_transmit(struct tpm_sc *sc, size_t length)
	{			{
	size_t bytes_available;			size_t bytes_available;
	uint32_t mask, curr_cmd;			uint32_t mask, curr_cmd;
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