Differential D13039 Diff 35893 head/sys/dev/bhnd/bcma/bcma_subr.c

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	*			*
	* @retval 0 success			* @retval 0 success
	* @retval ENODEV if @p dinfo does not map an agent register resource.			* @retval ENODEV if @p dinfo does not map an agent register resource.
	* @retval ETIMEDOUT if timeout occurs waiting for reset completion			* @retval ETIMEDOUT if timeout occurs waiting for reset completion
	*/			*/
	int			int
	bcma_dmp_write_reset(device_t child, struct bcma_devinfo *dinfo, uint32_t value)			bcma_dmp_write_reset(device_t child, struct bcma_devinfo *dinfo, uint32_t value)
	{			{
				uint32_t rst;

	if (dinfo->res_agent == NULL)			if (dinfo->res_agent == NULL)
	return (ENODEV);			return (ENODEV);

				/* Already in requested reset state? */
				rst = bhnd_bus_read_4(dinfo->res_agent, BCMA_DMP_RESETCTRL);
				if (rst == value)
				return (0);

	bhnd_bus_write_4(dinfo->res_agent, BCMA_DMP_RESETCTRL, value);			bhnd_bus_write_4(dinfo->res_agent, BCMA_DMP_RESETCTRL, value);
	bhnd_bus_read_4(dinfo->res_agent, BCMA_DMP_RESETCTRL); /* read-back */			bhnd_bus_read_4(dinfo->res_agent, BCMA_DMP_RESETCTRL); /* read-back */
	DELAY(10);			DELAY(10);

	return (bcma_dmp_wait_reset(child, dinfo));			return (bcma_dmp_wait_reset(child, dinfo));
	}			}