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firmware: zynqmp: Swap addr_hi/low when PM_FPGA_LOAD is called

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Don't know reason but in regular flow addr_hi/low are swapped in ATF. It
means when fpga load is done from EL3 there is a need to swap it for PMUFW
to load bitstream.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Michal Simek 2020-10-05 15:23:28 +02:00
parent 5d5984c70e
commit 5690128f70
1 changed files with 8 additions and 0 deletions
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8
drivers/firmware/firmware-zynqmp.c
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@ -165,6 +165,14 @@ int __maybe_unused xilinx_pm_request(u32 api_id, u32 arg0, u32 arg1, u32 arg2,
*/
u32 regs[] = {api_id, arg0, arg1, arg2, arg3};
if (api_id == PM_FPGA_LOAD) {
/* Swap addr_hi/low because of incompatibility */
u32 temp = regs[1];
regs[1] = regs[2];
regs[2] = temp;
}
ipi_req(regs, PAYLOAD_ARG_CNT, ret_payload, PAYLOAD_ARG_CNT);
#else
return -EPERM;