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[POWERPC] QE: Add ability to upload QE firmware
Define the layout of a binary blob that contains a QE firmware and instructions on how to upload it. Add function qe_upload_firmware() to parse the blob and perform the actual upload. Fully define 'struct rsp' in immap_qe.h to include the actual RISC Special Registers. Added description of a new QE firmware node to booting-without-of.txt. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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@ -28,3 +28,6 @@ sound.txt
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- info on sound support under Linux/PPC
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zImage_layout.txt
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- info on the kernel images for Linux/PPC
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qe_firmware.txt
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- describes the layout of firmware binaries for the Freescale QUICC
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Engine and the code that parses and uploads the microcode therein.
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@ -52,7 +52,10 @@ Table of Contents
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i) Freescale QUICC Engine module (QE)
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j) CFI or JEDEC memory-mapped NOR flash
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k) Global Utilities Block
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l) Xilinx IP cores
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l) Freescale Communications Processor Module
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m) Chipselect/Local Bus
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n) 4xx/Axon EMAC ethernet nodes
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o) Xilinx IP cores
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VII - Specifying interrupt information for devices
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1) interrupts property
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@ -1788,6 +1791,32 @@ platforms are moved over to use the flattened-device-tree model.
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};
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};
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viii) Uploaded QE firmware
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If a new firwmare has been uploaded to the QE (usually by the
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boot loader), then a 'firmware' child node should be added to the QE
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node. This node provides information on the uploaded firmware that
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device drivers may need.
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Required properties:
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- id: The string name of the firmware. This is taken from the 'id'
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member of the qe_firmware structure of the uploaded firmware.
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Device drivers can search this string to determine if the
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firmware they want is already present.
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- extended-modes: The Extended Modes bitfield, taken from the
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firmware binary. It is a 64-bit number represented
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as an array of two 32-bit numbers.
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- virtual-traps: The virtual traps, taken from the firmware binary.
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It is an array of 8 32-bit numbers.
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Example:
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firmware {
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id = "Soft-UART";
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extended-modes = <0 0>;
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virtual-traps = <0 0 0 0 0 0 0 0>;
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}
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j) CFI or JEDEC memory-mapped NOR flash
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Flash chips (Memory Technology Devices) are often used for solid state
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@ -2269,7 +2298,7 @@ platforms are moved over to use the flattened-device-tree model.
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available.
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For Axon: 0x0000012a
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l) Xilinx IP cores
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o) Xilinx IP cores
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The Xilinx EDK toolchain ships with a set of IP cores (devices) for use
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in Xilinx Spartan and Virtex FPGAs. The devices cover the whole range
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295
Documentation/powerpc/qe_firmware.txt
Normal file
295
Documentation/powerpc/qe_firmware.txt
Normal file
@ -0,0 +1,295 @@
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Freescale QUICC Engine Firmware Uploading
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-----------------------------------------
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(c) 2007 Timur Tabi <timur at freescale.com>,
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Freescale Semiconductor
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Table of Contents
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=================
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I - Software License for Firmware
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II - Microcode Availability
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III - Description and Terminology
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IV - Microcode Programming Details
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V - Firmware Structure Layout
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VI - Sample Code for Creating Firmware Files
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Revision Information
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====================
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November 30, 2007: Rev 1.0 - Initial version
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I - Software License for Firmware
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=================================
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Each firmware file comes with its own software license. For information on
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the particular license, please see the license text that is distributed with
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the firmware.
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II - Microcode Availability
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===========================
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Firmware files are distributed through various channels. Some are available on
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http://opensource.freescale.com. For other firmware files, please contact
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your Freescale representative or your operating system vendor.
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III - Description and Terminology
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================================
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In this document, the term 'microcode' refers to the sequence of 32-bit
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integers that compose the actual QE microcode.
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The term 'firmware' refers to a binary blob that contains the microcode as
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well as other data that
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1) describes the microcode's purpose
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2) describes how and where to upload the microcode
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3) specifies the values of various registers
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4) includes additional data for use by specific device drivers
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Firmware files are binary files that contain only a firmware.
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IV - Microcode Programming Details
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===================================
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The QE architecture allows for only one microcode present in I-RAM for each
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RISC processor. To replace any current microcode, a full QE reset (which
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disables the microcode) must be performed first.
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QE microcode is uploaded using the following procedure:
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1) The microcode is placed into I-RAM at a specific location, using the
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IRAM.IADD and IRAM.IDATA registers.
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2) The CERCR.CIR bit is set to 0 or 1, depending on whether the firmware
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needs split I-RAM. Split I-RAM is only meaningful for SOCs that have
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QEs with multiple RISC processors, such as the 8360. Splitting the I-RAM
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allows each processor to run a different microcode, effectively creating an
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asymmetric multiprocessing (AMP) system.
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3) The TIBCR trap registers are loaded with the addresses of the trap handlers
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in the microcode.
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4) The RSP.ECCR register is programmed with the value provided.
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5) If necessary, device drivers that need the virtual traps and extended mode
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data will use them.
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Virtual Microcode Traps
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These virtual traps are conditional branches in the microcode. These are
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"soft" provisional introduced in the ROMcode in order to enable higher
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flexibility and save h/w traps If new features are activated or an issue is
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being fixed in the RAM package utilizing they should be activated. This data
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structure signals the microcode which of these virtual traps is active.
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This structure contains 6 words that the application should copy to some
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specific been defined. This table describes the structure.
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---------------------------------------------------------------
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| Offset in | | Destination Offset | Size of |
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| array | Protocol | within PRAM | Operand |
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--------------------------------------------------------------|
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| 0 | Ethernet | 0xF8 | 4 bytes |
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| | interworking | | |
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---------------------------------------------------------------
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| 4 | ATM | 0xF8 | 4 bytes |
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| | interworking | | |
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---------------------------------------------------------------
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| 8 | PPP | 0xF8 | 4 bytes |
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| | interworking | | |
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---------------------------------------------------------------
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| 12 | Ethernet RX | 0x22 | 1 byte |
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| | Distributor Page | | |
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---------------------------------------------------------------
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| 16 | ATM Globtal | 0x28 | 1 byte |
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| | Params Table | | |
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---------------------------------------------------------------
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| 20 | Insert Frame | 0xF8 | 4 bytes |
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---------------------------------------------------------------
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Extended Modes
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This is a double word bit array (64 bits) that defines special functionality
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which has an impact on the softwarew drivers. Each bit has its own impact
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and has special instructions for the s/w associated with it. This structure is
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described in this table:
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-----------------------------------------------------------------------
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| Bit # | Name | Description |
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-----------------------------------------------------------------------
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| 0 | General | Indicates that prior to each host command |
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| | push command | given by the application, the software must |
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| | | assert a special host command (push command)|
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| | | CECDR = 0x00800000. |
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| | | CECR = 0x01c1000f. |
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-----------------------------------------------------------------------
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| 1 | UCC ATM | Indicates that after issuing ATM RX INIT |
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| | RX INIT | command, the host must issue another special|
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| | push command | command (push command) and immediately |
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| | | following that re-issue the ATM RX INIT |
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| | | command. (This makes the sequence of |
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| | | initializing the ATM receiver a sequence of |
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| | | three host commands) |
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| | | CECDR = 0x00800000. |
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| | | CECR = 0x01c1000f. |
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-----------------------------------------------------------------------
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| 2 | Add/remove | Indicates that following the specific host |
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| | command | command: "Add/Remove entry in Hash Lookup |
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| | validation | Table" used in Interworking setup, the user |
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| | | must issue another command. |
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| | | CECDR = 0xce000003. |
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| | | CECR = 0x01c10f58. |
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-----------------------------------------------------------------------
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| 3 | General push | Indicates that the s/w has to initialize |
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| | command | some pointers in the Ethernet thread pages |
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| | | which are used when Header Compression is |
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| | | activated. The full details of these |
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| | | pointers is located in the software drivers.|
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-----------------------------------------------------------------------
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| 4 | General push | Indicates that after issuing Ethernet TX |
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| | command | INIT command, user must issue this command |
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| | | for each SNUM of Ethernet TX thread. |
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| | | CECDR = 0x00800003. |
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| | | CECR = 0x7'b{0}, 8'b{Enet TX thread SNUM}, |
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| | | 1'b{1}, 12'b{0}, 4'b{1} |
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-----------------------------------------------------------------------
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| 5 - 31 | N/A | Reserved, set to zero. |
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-----------------------------------------------------------------------
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V - Firmware Structure Layout
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==============================
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QE microcode from Freescale is typically provided as a header file. This
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header file contains macros that define the microcode binary itself as well as
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some other data used in uploading that microcode. The format of these files
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do not lend themselves to simple inclusion into other code. Hence,
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the need for a more portable format. This section defines that format.
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Instead of distributing a header file, the microcode and related data are
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embedded into a binary blob. This blob is passed to the qe_upload_firmware()
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function, which parses the blob and performs everything necessary to upload
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the microcode.
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All integers are big-endian. See the comments for function
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qe_upload_firmware() for up-to-date implementation information.
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This structure supports versioning, where the version of the structure is
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embedded into the structure itself. To ensure forward and backwards
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compatibility, all versions of the structure must use the same 'qe_header'
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structure at the beginning.
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'header' (type: struct qe_header):
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The 'length' field is the size, in bytes, of the entire structure,
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including all the microcode embedded in it, as well as the CRC (if
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present).
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The 'magic' field is an array of three bytes that contains the letters
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'Q', 'E', and 'F'. This is an identifier that indicates that this
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structure is a QE Firmware structure.
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The 'version' field is a single byte that indicates the version of this
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structure. If the layout of the structure should ever need to be
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changed to add support for additional types of microcode, then the
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version number should also be changed.
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The 'id' field is a null-terminated string(suitable for printing) that
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identifies the firmware.
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The 'count' field indicates the number of 'microcode' structures. There
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must be one and only one 'microcode' structure for each RISC processor.
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Therefore, this field also represents the number of RISC processors for this
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SOC.
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The 'soc' structure contains the SOC numbers and revisions used to match
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the microcode to the SOC itself. Normally, the microcode loader should
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check the data in this structure with the SOC number and revisions, and
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only upload the microcode if there's a match. However, this check is not
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made on all platforms.
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Although it is not recommended, you can specify '0' in the soc.model
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field to skip matching SOCs altogether.
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The 'model' field is a 16-bit number that matches the actual SOC. The
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'major' and 'minor' fields are the major and minor revision numbrs,
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respectively, of the SOC.
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For example, to match the 8323, revision 1.0:
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soc.model = 8323
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soc.major = 1
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soc.minor = 0
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'padding' is neccessary for structure alignment. This field ensures that the
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'extended_modes' field is aligned on a 64-bit boundary.
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'extended_modes' is a bitfield that defines special functionality which has an
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impact on the device drivers. Each bit has its own impact and has special
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instructions for the driver associated with it. This field is stored in
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the QE library and available to any driver that calles qe_get_firmware_info().
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'vtraps' is an array of 8 words that contain virtual trap values for each
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virtual traps. As with 'extended_modes', this field is stored in the QE
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library and available to any driver that calles qe_get_firmware_info().
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'microcode' (type: struct qe_microcode):
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For each RISC processor there is one 'microcode' structure. The first
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'microcode' structure is for the first RISC, and so on.
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The 'id' field is a null-terminated string suitable for printing that
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identifies this particular microcode.
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'traps' is an array of 16 words that contain hardware trap values
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for each of the 16 traps. If trap[i] is 0, then this particular
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trap is to be ignored (i.e. not written to TIBCR[i]). The entire value
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is written as-is to the TIBCR[i] register, so be sure to set the EN
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and T_IBP bits if necessary.
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'eccr' is the value to program into the ECCR register.
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'iram_offset' is the offset into IRAM to start writing the
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microcode.
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'count' is the number of 32-bit words in the microcode.
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'code_offset' is the offset, in bytes, from the beginning of this
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structure where the microcode itself can be found. The first
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microcode binary should be located immediately after the 'microcode'
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array.
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'major', 'minor', and 'revision' are the major, minor, and revision
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version numbers, respectively, of the microcode. If all values are 0,
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then these fields are ignored.
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'reserved' is necessary for structure alignment. Since 'microcode'
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is an array, the 64-bit 'extended_modes' field needs to be aligned
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on a 64-bit boundary, and this can only happen if the size of
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'microcode' is a multiple of 8 bytes. To ensure that, we add
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'reserved'.
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After the last microcode is a 32-bit CRC. It can be calculated using
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this algorithm:
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u32 crc32(const u8 *p, unsigned int len)
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{
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unsigned int i;
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u32 crc = 0;
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while (len--) {
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crc ^= *p++;
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for (i = 0; i < 8; i++)
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crc = (crc >> 1) ^ ((crc & 1) ? 0xedb88320 : 0);
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}
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return crc;
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}
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VI - Sample Code for Creating Firmware Files
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============================================
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A Python program that creates firmware binaries from the header files normally
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distributed by Freescale can be found on http://opensource.freescale.com.
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@ -265,6 +265,7 @@ config TAU_AVERAGE
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config QUICC_ENGINE
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bool
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select PPC_LIB_RHEAP
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select CRC32
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help
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The QUICC Engine (QE) is a new generation of communications
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coprocessors on Freescale embedded CPUs (akin to CPM in older chips).
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@ -25,6 +25,7 @@
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#include <linux/module.h>
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#include <linux/delay.h>
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#include <linux/ioport.h>
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#include <linux/crc32.h>
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#include <asm/irq.h>
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#include <asm/page.h>
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#include <asm/pgtable.h>
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@ -394,3 +395,249 @@ void *qe_muram_addr(unsigned long offset)
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return (void *)&qe_immr->muram[offset];
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}
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EXPORT_SYMBOL(qe_muram_addr);
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/* The maximum number of RISCs we support */
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#define MAX_QE_RISC 2
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/* Firmware information stored here for qe_get_firmware_info() */
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static struct qe_firmware_info qe_firmware_info;
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/*
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* Set to 1 if QE firmware has been uploaded, and therefore
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* qe_firmware_info contains valid data.
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*/
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static int qe_firmware_uploaded;
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/*
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* Upload a QE microcode
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*
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* This function is a worker function for qe_upload_firmware(). It does
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* the actual uploading of the microcode.
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*/
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static void qe_upload_microcode(const void *base,
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const struct qe_microcode *ucode)
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{
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const __be32 *code = base + be32_to_cpu(ucode->code_offset);
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unsigned int i;
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if (ucode->major || ucode->minor || ucode->revision)
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printk(KERN_INFO "qe-firmware: "
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"uploading microcode '%s' version %u.%u.%u\n",
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ucode->id, ucode->major, ucode->minor, ucode->revision);
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else
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printk(KERN_INFO "qe-firmware: "
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"uploading microcode '%s'\n", ucode->id);
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/* Use auto-increment */
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out_be32(&qe_immr->iram.iadd, be32_to_cpu(ucode->iram_offset) |
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QE_IRAM_IADD_AIE | QE_IRAM_IADD_BADDR);
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for (i = 0; i < be32_to_cpu(ucode->count); i++)
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out_be32(&qe_immr->iram.idata, be32_to_cpu(code[i]));
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}
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/*
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* Upload a microcode to the I-RAM at a specific address.
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*
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* See Documentation/powerpc/qe-firmware.txt for information on QE microcode
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* uploading.
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*
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* Currently, only version 1 is supported, so the 'version' field must be
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* set to 1.
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*
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* The SOC model and revision are not validated, they are only displayed for
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* informational purposes.
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*
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* 'calc_size' is the calculated size, in bytes, of the firmware structure and
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* all of the microcode structures, minus the CRC.
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*
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* 'length' is the size that the structure says it is, including the CRC.
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*/
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int qe_upload_firmware(const struct qe_firmware *firmware)
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{
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unsigned int i;
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unsigned int j;
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u32 crc;
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size_t calc_size = sizeof(struct qe_firmware);
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size_t length;
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const struct qe_header *hdr;
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if (!firmware) {
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printk(KERN_ERR "qe-firmware: invalid pointer\n");
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return -EINVAL;
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}
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hdr = &firmware->header;
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length = be32_to_cpu(hdr->length);
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/* Check the magic */
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if ((hdr->magic[0] != 'Q') || (hdr->magic[1] != 'E') ||
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(hdr->magic[2] != 'F')) {
|
||||
printk(KERN_ERR "qe-firmware: not a microcode\n");
|
||||
return -EPERM;
|
||||
}
|
||||
|
||||
/* Check the version */
|
||||
if (hdr->version != 1) {
|
||||
printk(KERN_ERR "qe-firmware: unsupported version\n");
|
||||
return -EPERM;
|
||||
}
|
||||
|
||||
/* Validate some of the fields */
|
||||
if ((firmware->count < 1) || (firmware->count >= MAX_QE_RISC)) {
|
||||
printk(KERN_ERR "qe-firmware: invalid data\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
/* Validate the length and check if there's a CRC */
|
||||
calc_size += (firmware->count - 1) * sizeof(struct qe_microcode);
|
||||
|
||||
for (i = 0; i < firmware->count; i++)
|
||||
/*
|
||||
* For situations where the second RISC uses the same microcode
|
||||
* as the first, the 'code_offset' and 'count' fields will be
|
||||
* zero, so it's okay to add those.
|
||||
*/
|
||||
calc_size += sizeof(__be32) *
|
||||
be32_to_cpu(firmware->microcode[i].count);
|
||||
|
||||
/* Validate the length */
|
||||
if (length != calc_size + sizeof(__be32)) {
|
||||
printk(KERN_ERR "qe-firmware: invalid length\n");
|
||||
return -EPERM;
|
||||
}
|
||||
|
||||
/* Validate the CRC */
|
||||
crc = be32_to_cpu(*(__be32 *)((void *)firmware + calc_size));
|
||||
if (crc != crc32(0, firmware, calc_size)) {
|
||||
printk(KERN_ERR "qe-firmware: firmware CRC is invalid\n");
|
||||
return -EIO;
|
||||
}
|
||||
|
||||
/*
|
||||
* If the microcode calls for it, split the I-RAM.
|
||||
*/
|
||||
if (!firmware->split)
|
||||
setbits16(&qe_immr->cp.cercr, QE_CP_CERCR_CIR);
|
||||
|
||||
if (firmware->soc.model)
|
||||
printk(KERN_INFO
|
||||
"qe-firmware: firmware '%s' for %u V%u.%u\n",
|
||||
firmware->id, be16_to_cpu(firmware->soc.model),
|
||||
firmware->soc.major, firmware->soc.minor);
|
||||
else
|
||||
printk(KERN_INFO "qe-firmware: firmware '%s'\n",
|
||||
firmware->id);
|
||||
|
||||
/*
|
||||
* The QE only supports one microcode per RISC, so clear out all the
|
||||
* saved microcode information and put in the new.
|
||||
*/
|
||||
memset(&qe_firmware_info, 0, sizeof(qe_firmware_info));
|
||||
strcpy(qe_firmware_info.id, firmware->id);
|
||||
qe_firmware_info.extended_modes = firmware->extended_modes;
|
||||
memcpy(qe_firmware_info.vtraps, firmware->vtraps,
|
||||
sizeof(firmware->vtraps));
|
||||
|
||||
/* Loop through each microcode. */
|
||||
for (i = 0; i < firmware->count; i++) {
|
||||
const struct qe_microcode *ucode = &firmware->microcode[i];
|
||||
|
||||
/* Upload a microcode if it's present */
|
||||
if (ucode->code_offset)
|
||||
qe_upload_microcode(firmware, ucode);
|
||||
|
||||
/* Program the traps for this processor */
|
||||
for (j = 0; j < 16; j++) {
|
||||
u32 trap = be32_to_cpu(ucode->traps[j]);
|
||||
|
||||
if (trap)
|
||||
out_be32(&qe_immr->rsp[i].tibcr[j], trap);
|
||||
}
|
||||
|
||||
/* Enable traps */
|
||||
out_be32(&qe_immr->rsp[i].eccr, be32_to_cpu(ucode->eccr));
|
||||
}
|
||||
|
||||
qe_firmware_uploaded = 1;
|
||||
|
||||
return 0;
|
||||
}
|
||||
EXPORT_SYMBOL(qe_upload_firmware);
|
||||
|
||||
/*
|
||||
* Get info on the currently-loaded firmware
|
||||
*
|
||||
* This function also checks the device tree to see if the boot loader has
|
||||
* uploaded a firmware already.
|
||||
*/
|
||||
struct qe_firmware_info *qe_get_firmware_info(void)
|
||||
{
|
||||
static int initialized;
|
||||
struct property *prop;
|
||||
struct device_node *qe;
|
||||
struct device_node *fw = NULL;
|
||||
const char *sprop;
|
||||
unsigned int i;
|
||||
|
||||
/*
|
||||
* If we haven't checked yet, and a driver hasn't uploaded a firmware
|
||||
* yet, then check the device tree for information.
|
||||
*/
|
||||
if (initialized || qe_firmware_uploaded)
|
||||
return NULL;
|
||||
|
||||
initialized = 1;
|
||||
|
||||
/*
|
||||
* Newer device trees have an "fsl,qe" compatible property for the QE
|
||||
* node, but we still need to support older device trees.
|
||||
*/
|
||||
qe = of_find_compatible_node(NULL, NULL, "fsl,qe");
|
||||
if (!qe) {
|
||||
qe = of_find_node_by_type(NULL, "qe");
|
||||
if (!qe)
|
||||
return NULL;
|
||||
}
|
||||
|
||||
/* Find the 'firmware' child node */
|
||||
for_each_child_of_node(qe, fw) {
|
||||
if (strcmp(fw->name, "firmware") == 0)
|
||||
break;
|
||||
}
|
||||
|
||||
of_node_put(qe);
|
||||
|
||||
/* Did we find the 'firmware' node? */
|
||||
if (!fw)
|
||||
return NULL;
|
||||
|
||||
qe_firmware_uploaded = 1;
|
||||
|
||||
/* Copy the data into qe_firmware_info*/
|
||||
sprop = of_get_property(fw, "id", NULL);
|
||||
if (sprop)
|
||||
strncpy(qe_firmware_info.id, sprop,
|
||||
sizeof(qe_firmware_info.id) - 1);
|
||||
|
||||
prop = of_find_property(fw, "extended-modes", NULL);
|
||||
if (prop && (prop->length == sizeof(u64))) {
|
||||
const u64 *iprop = prop->value;
|
||||
|
||||
qe_firmware_info.extended_modes = *iprop;
|
||||
}
|
||||
|
||||
prop = of_find_property(fw, "virtual-traps", NULL);
|
||||
if (prop && (prop->length == 32)) {
|
||||
const u32 *iprop = prop->value;
|
||||
|
||||
for (i = 0; i < ARRAY_SIZE(qe_firmware_info.vtraps); i++)
|
||||
qe_firmware_info.vtraps[i] = iprop[i];
|
||||
}
|
||||
|
||||
of_node_put(fw);
|
||||
|
||||
return &qe_firmware_info;
|
||||
}
|
||||
EXPORT_SYMBOL(qe_get_firmware_info);
|
||||
|
||||
|
@ -393,9 +393,39 @@ struct dbg {
|
||||
u8 res2[0x48];
|
||||
} __attribute__ ((packed));
|
||||
|
||||
/* RISC Special Registers (Trap and Breakpoint) */
|
||||
/*
|
||||
* RISC Special Registers (Trap and Breakpoint). These are described in
|
||||
* the QE Developer's Handbook.
|
||||
*/
|
||||
struct rsp {
|
||||
u32 reg[0x40]; /* 64 32-bit registers */
|
||||
__be32 tibcr[16]; /* Trap/instruction breakpoint control regs */
|
||||
u8 res0[64];
|
||||
__be32 ibcr0;
|
||||
__be32 ibs0;
|
||||
__be32 ibcnr0;
|
||||
u8 res1[4];
|
||||
__be32 ibcr1;
|
||||
__be32 ibs1;
|
||||
__be32 ibcnr1;
|
||||
__be32 npcr;
|
||||
__be32 dbcr;
|
||||
__be32 dbar;
|
||||
__be32 dbamr;
|
||||
__be32 dbsr;
|
||||
__be32 dbcnr;
|
||||
u8 res2[12];
|
||||
__be32 dbdr_h;
|
||||
__be32 dbdr_l;
|
||||
__be32 dbdmr_h;
|
||||
__be32 dbdmr_l;
|
||||
__be32 bsr;
|
||||
__be32 bor;
|
||||
__be32 bior;
|
||||
u8 res3[4];
|
||||
__be32 iatr[4];
|
||||
__be32 eccr; /* Exception control configuration register */
|
||||
__be32 eicr;
|
||||
u8 res4[0x100-0xf8];
|
||||
} __attribute__ ((packed));
|
||||
|
||||
struct qe_immap {
|
||||
|
@ -94,6 +94,58 @@ unsigned long qe_muram_alloc_fixed(unsigned long offset, int size);
|
||||
void qe_muram_dump(void);
|
||||
void *qe_muram_addr(unsigned long offset);
|
||||
|
||||
/* Structure that defines QE firmware binary files.
|
||||
*
|
||||
* See Documentation/powerpc/qe-firmware.txt for a description of these
|
||||
* fields.
|
||||
*/
|
||||
struct qe_firmware {
|
||||
struct qe_header {
|
||||
__be32 length; /* Length of the entire structure, in bytes */
|
||||
u8 magic[3]; /* Set to { 'Q', 'E', 'F' } */
|
||||
u8 version; /* Version of this layout. First ver is '1' */
|
||||
} header;
|
||||
u8 id[62]; /* Null-terminated identifier string */
|
||||
u8 split; /* 0 = shared I-RAM, 1 = split I-RAM */
|
||||
u8 count; /* Number of microcode[] structures */
|
||||
struct {
|
||||
__be16 model; /* The SOC model */
|
||||
u8 major; /* The SOC revision major */
|
||||
u8 minor; /* The SOC revision minor */
|
||||
} __attribute__ ((packed)) soc;
|
||||
u8 padding[4]; /* Reserved, for alignment */
|
||||
__be64 extended_modes; /* Extended modes */
|
||||
__be32 vtraps[8]; /* Virtual trap addresses */
|
||||
u8 reserved[4]; /* Reserved, for future expansion */
|
||||
struct qe_microcode {
|
||||
u8 id[32]; /* Null-terminated identifier */
|
||||
__be32 traps[16]; /* Trap addresses, 0 == ignore */
|
||||
__be32 eccr; /* The value for the ECCR register */
|
||||
__be32 iram_offset; /* Offset into I-RAM for the code */
|
||||
__be32 count; /* Number of 32-bit words of the code */
|
||||
__be32 code_offset; /* Offset of the actual microcode */
|
||||
u8 major; /* The microcode version major */
|
||||
u8 minor; /* The microcode version minor */
|
||||
u8 revision; /* The microcode version revision */
|
||||
u8 padding; /* Reserved, for alignment */
|
||||
u8 reserved[4]; /* Reserved, for future expansion */
|
||||
} __attribute__ ((packed)) microcode[1];
|
||||
/* All microcode binaries should be located here */
|
||||
/* CRC32 should be located here, after the microcode binaries */
|
||||
} __attribute__ ((packed));
|
||||
|
||||
struct qe_firmware_info {
|
||||
char id[64]; /* Firmware name */
|
||||
u32 vtraps[8]; /* Virtual trap addresses */
|
||||
u64 extended_modes; /* Extended modes */
|
||||
};
|
||||
|
||||
/* Upload a firmware to the QE */
|
||||
int qe_upload_firmware(const struct qe_firmware *firmware);
|
||||
|
||||
/* Obtain information on the uploaded firmware */
|
||||
struct qe_firmware_info *qe_get_firmware_info(void);
|
||||
|
||||
/* Buffer descriptors */
|
||||
struct qe_bd {
|
||||
__be16 status;
|
||||
@ -329,6 +381,15 @@ enum comm_dir {
|
||||
|
||||
#define QE_SDEBCR_BA_MASK 0x01FFFFFF
|
||||
|
||||
/* Communication Processor */
|
||||
#define QE_CP_CERCR_MEE 0x8000 /* Multi-user RAM ECC enable */
|
||||
#define QE_CP_CERCR_IEE 0x4000 /* Instruction RAM ECC enable */
|
||||
#define QE_CP_CERCR_CIR 0x0800 /* Common instruction RAM */
|
||||
|
||||
/* I-RAM */
|
||||
#define QE_IRAM_IADD_AIE 0x80000000 /* Auto Increment Enable */
|
||||
#define QE_IRAM_IADD_BADDR 0x00080000 /* Base Address */
|
||||
|
||||
/* UPC */
|
||||
#define UPGCR_PROTOCOL 0x80000000 /* protocol ul2 or pl2 */
|
||||
#define UPGCR_TMS 0x40000000 /* Transmit master/slave mode */
|
||||
|
Loading…
Reference in New Issue
Block a user