diff options
Diffstat (limited to 'plat/nvidia/tegra/common/tegra_sip_calls.c')
| -rw-r--r-- | plat/nvidia/tegra/common/tegra_sip_calls.c | 32 |
1 files changed, 30 insertions, 2 deletions
diff --git a/plat/nvidia/tegra/common/tegra_sip_calls.c b/plat/nvidia/tegra/common/tegra_sip_calls.c index 4dd43532..1e5423db 100644 --- a/plat/nvidia/tegra/common/tegra_sip_calls.c +++ b/plat/nvidia/tegra/common/tegra_sip_calls.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved. + * Copyright (c) 2015-2017, ARM Limited and Contributors. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: @@ -37,6 +37,7 @@ #include <memctrl.h> #include <runtime_svc.h> #include <tegra_private.h> +#include <tegra_platform.h> /******************************************************************************* * Common Tegra SiP SMCs @@ -44,6 +45,13 @@ #define TEGRA_SIP_NEW_VIDEOMEM_REGION 0x82000003 #define TEGRA_SIP_FIQ_NS_ENTRYPOINT 0x82000005 #define TEGRA_SIP_FIQ_NS_GET_CONTEXT 0x82000006 +#define TEGRA_SIP_ENABLE_FAKE_SYSTEM_SUSPEND 0xC2000007 + +/******************************************************************************* + * Fake system suspend mode control var + ******************************************************************************/ +extern uint8_t tegra_fake_system_suspend; + /******************************************************************************* * SoC specific SiP handler @@ -78,7 +86,7 @@ uint64_t tegra_sip_handler(uint32_t smc_fid, /* Check if this is a SoC specific SiP */ err = plat_sip_handler(smc_fid, x1, x2, x3, x4, cookie, handle, flags); if (err == 0) - SMC_RET1(handle, err); + SMC_RET1(handle, (uint64_t)err); switch (smc_fid) { @@ -144,6 +152,26 @@ uint64_t tegra_sip_handler(uint32_t smc_fid, SMC_RET0(handle); break; + case TEGRA_SIP_ENABLE_FAKE_SYSTEM_SUSPEND: + /* + * System suspend fake mode is set if we are on VDK and we make + * a debug SIP call. This mode ensures that we excercise debug + * path instead of the regular code path to suit the pre-silicon + * platform needs. These include replacing the call to WFI by + * a warm reset request. + */ + if (tegra_platform_is_emulation() != 0U) { + + tegra_fake_system_suspend = 1; + SMC_RET1(handle, 0); + } + + /* + * We return to the external world as if this SIP is not + * implemented in case, we are not running on VDK. + */ + break; + default: ERROR("%s: unhandled SMC (0x%x)\n", __func__, smc_fid); break; |