Commit 2b9fc773 authored by Nava kishore Manne's avatar Nava kishore Manne Committed by Greg Kroah-Hartman
Browse files

drivers: firmware: Add PDI load API support 



This patch adds load PDI API support to enable full/partial PDI loading
from linux. Programmable Device Image (PDI) is combination of headers,
images and bitstream files to be loaded.

Reviewed-by: default avatarMoritz Fischer <mdf@kernel.org>
Signed-off-by: default avatarNava kishore Manne <nava.manne@xilinx.com>
Link: https://lore.kernel.org/r/20210626155248.5004-2-nava.manne@xilinx.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 2734d6c1

drivers/firmware/xilinx/zynqmp.c

+17 −0
Original line number Diff line number Diff line
@@ -1011,6 +1011,23 @@ int zynqmp_pm_set_requirement(const u32 node, const u32 capabilities, 
}

EXPORT_SYMBOL_GPL(zynqmp_pm_set_requirement);



/**

 * zynqmp_pm_load_pdi - Load and process PDI

 * @src:       Source device where PDI is located

 * @address:   PDI src address

 *

 * This function provides support to load PDI from linux

 *

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

 */

int zynqmp_pm_load_pdi(const u32 src, const u64 address)

{

	return zynqmp_pm_invoke_fn(PM_LOAD_PDI, src,

				   lower_32_bits(address),

				   upper_32_bits(address), 0, NULL);

}

EXPORT_SYMBOL_GPL(zynqmp_pm_load_pdi);



/**

 * zynqmp_pm_aes - Access AES hardware to encrypt/decrypt the data using

 * AES-GCM core.

include/linux/firmware/xlnx-zynqmp.h

+10 −0
Original line number Diff line number Diff line
@@ -52,6 +52,10 @@ 
#define	ZYNQMP_PM_CAPABILITY_WAKEUP	0x4U

#define	ZYNQMP_PM_CAPABILITY_UNUSABLE	0x8U



/* Loader commands */

#define PM_LOAD_PDI	0x701

#define PDI_SRC_DDR	0xF



/*

 * Firmware FPGA Manager flags

 * XILINX_ZYNQMP_PM_FPGA_FULL:	FPGA full reconfiguration
@@ -411,6 +415,7 @@ int zynqmp_pm_pinctrl_get_config(const u32 pin, const u32 param, 
				 u32 *value);

int zynqmp_pm_pinctrl_set_config(const u32 pin, const u32 param,

				 u32 value);

int zynqmp_pm_load_pdi(const u32 src, const u64 address);

#else

static inline int zynqmp_pm_get_api_version(u32 *version)

{
@@ -622,6 +627,11 @@ static inline int zynqmp_pm_pinctrl_set_config(const u32 pin, const u32 param, 
{

	return -ENODEV;

}



static inline int zynqmp_pm_load_pdi(const u32 src, const u64 address)

{

	return -ENODEV;

}

#endif



#endif /* __FIRMWARE_ZYNQMP_H__ */