Update `readme.md` for v1.2 release

Change-Id: I50e62cc89a55a6f13093a2c1c84d13802b65b4aa

readme.md

-ARM Trusted Firmware - version 1.1
+ARM Trusted Firmware - version 1.2
 ==================================
 
 ARM Trusted Firmware provides a reference implementation of secure world
-software for [ARMv8-A], including Exception Level 3 (EL3) software. This release
-provides complete support for version 0.2 of the [PSCI] specification, initial
-support for the new version 1.0 of that specification, and prototype support for
-the Trusted Board Boot Requirements specification.
-
-The intent is to provide a reference implementation of various ARM interface
-standards, such as the Power State Coordination Interface ([PSCI]), Trusted
-Board Boot Requirements (TBBR) and [Secure Monitor] [TEE-SMC] code. As far as
-possible the code is designed for reuse or porting to other ARMv8-A model and
-hardware platforms.
+software for [ARMv8-A], including a [Secure Monitor] [TEE-SMC] executing at
+Exception Level 3 (EL3). It implements various ARM interface standards, such as
+the Power State Coordination Interface ([PSCI]), Trusted Board Boot Requirements
+(TBBR, ARM DEN0006C-1) and [SMC Calling Convention][SMCCC]. As far as possible
+the code is designed for reuse or porting to other ARMv8-A model and hardware
+platforms.
 
 ARM will continue development in collaboration with interested parties to
 provide a full reference implementation of PSCI, TBBR and Secure Monitor code
@@ -29,51 +25,58 @@ source files.
 This Release
 ------------
 
-This release is a limited functionality implementation of the Trusted Firmware.
-It provides a suitable starting point for productization. Future versions will
-contain new features, optimizations and quality improvements.
+This release provides a suitable starting point for productization of secure
+world boot and runtime firmware. Future versions will contain new features,
+optimizations and quality improvements.
+
+Users are encouraged to do their own security validation, including penetration
+testing, on any secure world code derived from ARM Trusted Firmware.
 
 ### Functionality
 
-*   Prototype implementation of a subset of the Trusted Board Boot Requirements
-    Platform Design Document (PDD). This includes packaging the various firmware
-    images into a Firmware Image Package (FIP) to be loaded from non-volatile
-    storage, and a prototype of authenticated boot using key certificates stored
-    in the FIP.
+*   Initialization of the secure world (for example, exception vectors, control
+    registers, interrupt controller and interrupts for the platform), before
+    transitioning into the normal world at the Exception Level and Register
+    Width specified by the platform.
+
+*   Library support for CPU specific reset and power down sequences. This
+    includes support for errata workarounds.
 
-*   Initializes the secure world (for example, exception vectors, control
-    registers, GIC and interrupts for the platform), before transitioning into
-    the normal world.
+*   Drivers for both the version 2.0 and version 3.0 ARM Generic Interrupt
+    Controller specifications (GICv2 and GICv3). The latter also enables GICv3
+    hardware systems that do not contain legacy GICv2 support.
 
-*   Supports both GICv2 and GICv3 initialization for use by normal world
-    software.
+*   Drivers to enable standard initialization of ARM System IP, for example
+    Cache Coherent Interconnect (CCI), Cache Coherent Network (CCN), Network
+    Interconnect (NIC) and TrustZone Controller (TZC).
 
-*   Starts the normal world at the Exception Level and Register Width specified
-    by the platform port. Typically this is AArch64 EL2 if available.
+*   SMC (Secure Monitor Call) handling, conforming to the [SMC Calling
+    Convention][SMCCC] using an EL3 runtime services framework.
 
-*   Handles SMCs (Secure Monitor Calls) conforming to the [SMC Calling
-    Convention PDD] [SMCCC] using an EL3 runtime services framework.
+*   SMC handling relating to [PSCI] for the Secondary CPU Boot, CPU Hotplug,
+    CPU Idle and System Shutdown/Reset/Suspend use-cases.
 
-*   Handles SMCs relating to the [Power State Coordination Interface PDD] [PSCI]
-    for the Secondary CPU Boot, CPU Hotplug, CPU Idle and System Shutdown/Reset
-    use-cases.
+*   Secure Monitor library code such as world switching, EL1 context management
+    and interrupt routing. This must be integrated with a Secure-EL1 Payload
+    Dispatcher (SPD) component to customize the interaction with a Secure-EL1
+    Payload (SP), for example a Secure OS.
 
 *   A Test Secure-EL1 Payload and Dispatcher to demonstrate Secure Monitor
-    functionality such as world switching, EL1 context management and interrupt
-    routing. This also demonstrates Secure-EL1 interaction with PSCI. Some of
-    this functionality is provided in library form for re-use by other
-    Secure-EL1 Payload Dispatchers.
+    functionality and Secure-EL1 interaction with PSCI.
 
-*   Support for alternative Trusted Boot Firmware. Some platforms have their own
-    Trusted Boot implementation and only require the Secure Monitor
-    functionality provided by ARM Trusted Firmware.
+*   SPDs for the [OP-TEE Secure OS] and [NVidia Trusted Little Kernel]
+    [NVidia TLK].
 
-*   Isolation of memory accessible by the secure world from the normal world
-    through programming of a TrustZone controller.
+*   A Trusted Board Boot implementation, conforming to all mandatory TBBR
+    requirements. This includes image authentication using certificates, a
+    Firmware Update (or recovery mode) boot flow, and packaging of the various
+    firmware images into a Firmware Image Package (FIP) to be loaded from
+    non-volatile storage.
 
-*   Support for CPU specific reset sequences, power down sequences and register
-    dumping during crash reporting. The CPU specific reset sequences include
-    support for errata workarounds.
+*   Support for alternative boot flows. Some platforms have their own boot
+    firmware and only require the ARM Trusted Firmware Secure Monitor
+    functionality. Other platforms require minimal initialization before
+    booting into an arbitrary EL3 payload.
 
 For a full description of functionality and implementation details, please
 see the [Firmware Design] and supporting documentation. The [Change Log]
@@ -81,33 +84,36 @@ provides details of changes made since the last release.
 
 ### Platforms
 
-This release of the Trusted Firmware has been tested on Revision B of the
-[Juno ARM Development Platform] [Juno] with Version r0p0-00rel7 of the
-[ARM SCP Firmware] [SCP download].
+This release of the Trusted Firmware has been tested on variants r0 and r1 of
+the [Juno ARM Development Platform] [Juno] with [Linaro Release 15.10]
+[Linaro Release Notes].
 
 The Trusted Firmware has also been tested on the 64-bit Linux versions of the
 following ARM [FVP]s:
 
-*   `Foundation_Platform` (Version 9.1, Build 9.1.33)
-*   `FVP_Base_AEMv8A-AEMv8A` (Version 6.2, Build 0.8.6202)
-*   `FVP_Base_Cortex-A57x4-A53x4` (Version 6.2, Build 0.8.6202)
-*   `FVP_Base_Cortex-A57x1-A53x1` (Version 6.2, Build 0.8.6202)
-*   `FVP_Base_Cortex-A57x2-A53x4` (Version 6.2, Build 0.8.6202)
+*   `Foundation_Platform` (Version 9.4, Build 9.4.59)
+*   `FVP_Base_AEMv8A-AEMv8A` (Version 7.0, Build 0.8.7004)
+*   `FVP_Base_Cortex-A57x4-A53x4` (Version 7.0, Build 0.8.7004)
+*   `FVP_Base_Cortex-A57x1-A53x1` (Version 7.0, Build 0.8.7004)
+*   `FVP_Base_Cortex-A57x2-A53x4` (Version 7.0, Build 0.8.7004)
 
 The Foundation FVP can be downloaded free of charge. The Base FVPs can be
 licensed from ARM: see [www.arm.com/fvp] [FVP].
 
-### Still to Come
+This release also contains the following platform support:
+
+*   NVidia T210 and T132 SoCs
+*   MediaTek MT8173 SoC
 
-*   Complete and more flexible Trusted Board Boot implementation.
+### Still to Come
 
 *   Complete implementation of the [PSCI] v1.0 specification.
 
-*   Support for alternative types of Secure-EL1 Payloads.
+*   Support for new CPUs and System IP.
 
-*   Extending the GICv3 support to the secure world.
+*   More platform support.
 
-*   Support for new System IP devices.
+*   Optimization and quality improvements.
 
 For a full list of detailed issues in the current code, please see the [Change
 Log] and the [GitHub issue tracker].
@@ -155,8 +161,10 @@ _Copyright (c) 2013-2015, ARM Limited and Contributors. All rights reserved._
 [ARMv8-A]:               http://www.arm.com/products/processors/armv8-architecture.php "ARMv8-A Architecture"
 [FVP]:                   http://www.arm.com/fvp "ARM's Fixed Virtual Platforms"
 [Juno]:                  http://www.arm.com/products/tools/development-boards/versatile-express/juno-arm-development-platform.php "Juno ARM Development Platform"
-[SCP download]:          https://silver.arm.com/download/download.tm?pv=1764630
 [PSCI]:                  http://infocenter.arm.com/help/topic/com.arm.doc.den0022c/DEN0022C_Power_State_Coordination_Interface.pdf "Power State Coordination Interface PDD (ARM DEN 0022C)"
 [SMCCC]:                 http://infocenter.arm.com/help/topic/com.arm.doc.den0028a/index.html "SMC Calling Convention PDD (ARM DEN 0028A)"
 [TEE-SMC]:               http://www.arm.com/products/processors/technologies/trustzone/tee-smc.php "Secure Monitor and TEEs"
 [GitHub issue tracker]:  https://github.com/ARM-software/tf-issues/issues
+[OP-TEE Secure OS]:      https://github.com/OP-TEE/optee_os
+[NVidia TLK]:            http://nv-tegra.nvidia.com/gitweb/?p=3rdparty/ote_partner/tlk.git;a=summary
+[Linaro Release Notes]:  https://community.arm.com/docs/DOC-10952#jive_content_id_Linaro_Release_1510