Unverified Commit 74e78adc authored by Sai Krishna Potthuri's avatar Sai Krishna Potthuri Committed by Mark Brown
Browse files

firmware: xilinx: Add OSPI Mux selection support 



Add OSPI Mux selection API support to select the AXI interface to OSPI.

Signed-off-by: default avatarSai Krishna Potthuri <lakshmi.sai.krishna.potthuri@xilinx.com>
Link: https://lore.kernel.org/r/1632478031-12242-2-git-send-email-lakshmi.sai.krishna.potthuri@xilinx.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 5c258a8a

drivers/firmware/xilinx/zynqmp.c

+17 −0
Original line number Diff line number Diff line
@@ -647,6 +647,23 @@ int zynqmp_pm_sd_dll_reset(u32 node_id, u32 type) 
}

EXPORT_SYMBOL_GPL(zynqmp_pm_sd_dll_reset);



/**

 * zynqmp_pm_ospi_mux_select() - OSPI Mux selection

 *

 * @dev_id:	Device Id of the OSPI device.

 * @select:	OSPI Mux select value.

 *

 * This function select the OSPI Mux.

 *

 * Return:	Returns status, either success or error+reason

 */

int zynqmp_pm_ospi_mux_select(u32 dev_id, u32 select)

{

	return zynqmp_pm_invoke_fn(PM_IOCTL, dev_id, IOCTL_OSPI_MUX_SELECT,

				   select, 0, NULL);

}

EXPORT_SYMBOL_GPL(zynqmp_pm_ospi_mux_select);



/**

 * zynqmp_pm_write_ggs() - PM API for writing global general storage (ggs)

 * @index:	GGS register index

include/linux/firmware/xlnx-zynqmp.h

+12 −0
Original line number Diff line number Diff line
@@ -123,6 +123,7 @@ enum pm_ioctl_id { 
	IOCTL_READ_PGGS = 15,

	/* Set healthy bit value */

	IOCTL_SET_BOOT_HEALTH_STATUS = 17,

	IOCTL_OSPI_MUX_SELECT = 21,

};



enum pm_query_id {
@@ -351,6 +352,11 @@ enum zynqmp_pm_shutdown_subtype { 
	ZYNQMP_PM_SHUTDOWN_SUBTYPE_SYSTEM = 2,

};



enum ospi_mux_select_type {

	PM_OSPI_MUX_SEL_DMA = 0,

	PM_OSPI_MUX_SEL_LINEAR = 1,

};



/**

 * struct zynqmp_pm_query_data - PM query data

 * @qid:	query ID
@@ -387,6 +393,7 @@ int zynqmp_pm_set_pll_frac_data(u32 clk_id, u32 data); 
int zynqmp_pm_get_pll_frac_data(u32 clk_id, u32 *data);

int zynqmp_pm_set_sd_tapdelay(u32 node_id, u32 type, u32 value);

int zynqmp_pm_sd_dll_reset(u32 node_id, u32 type);

int zynqmp_pm_ospi_mux_select(u32 dev_id, u32 select);

int zynqmp_pm_reset_assert(const enum zynqmp_pm_reset reset,

			   const enum zynqmp_pm_reset_action assert_flag);

int zynqmp_pm_reset_get_status(const enum zynqmp_pm_reset reset, u32 *status);
@@ -508,6 +515,11 @@ static inline int zynqmp_pm_sd_dll_reset(u32 node_id, u32 type) 
	return -ENODEV;

}



static inline int zynqmp_pm_ospi_mux_select(u32 dev_id, u32 select)

{

	return -ENODEV;

}



static inline int zynqmp_pm_reset_assert(const enum zynqmp_pm_reset reset,

					 const enum zynqmp_pm_reset_action assert_flag)

{