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zynqmp: pm: Support ATF PM version check 

Add SMC call to query ATF PM version. This version
can be used by Linux to match with expected version.

Signed-off-by: Rajan Vaja <rajanv@xilinx.com>
This commit is contained in:
Rajan Vaja 2018-02-14 23:10:54 -08:00 committed by Jolly Shah
parent 96d6986566
commit f134200f1a
2 changed files with 10 additions and 0 deletions
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5
plat/xilinx/zynqmp/pm_service/pm_common.h
View File

@ -19,6 +19,11 @@
#define PAYLOAD_ARG_CNT 6U
#define PAYLOAD_ARG_SIZE 4U /* size in bytes */
#define ZYNQMP_TZ_VERSION_MAJOR 1
#define ZYNQMP_TZ_VERSION_MINOR 0
#define ZYNQMP_TZ_VERSION ((ZYNQMP_TZ_VERSION_MAJOR << 16) | \
ZYNQMP_TZ_VERSION_MINOR)
/**
* pm_ipi - struct for capturing IPI-channel specific info
* @apu_ipi_id APU IPI agent ID

5
plat/xilinx/zynqmp/pm_service/pm_svc_main.c
View File

@ -19,6 +19,7 @@
#include "pm_ipi.h"
#define PM_GET_CALLBACK_DATA 0xa01
#define PM_GET_TRUSTZONE_VERSION 0xa03
/* 0 - UP, !0 - DOWN */
static int32_t pm_down = !0;
@ -355,6 +356,10 @@ uint64_t pm_smc_handler(uint32_t smc_fid, uint64_t x1, uint64_t x2, uint64_t x3,
SMC_RET1(handle, (uint64_t)ret | ((uint64_t)value) << 32);
}
case PM_GET_TRUSTZONE_VERSION:
SMC_RET1(handle, (uint64_t)PM_RET_SUCCESS |
((uint64_t)ZYNQMP_TZ_VERSION << 32));
default:
WARN("Unimplemented PM Service Call: 0x%x\n", smc_fid);
SMC_RET1(handle, SMC_UNK);