Syscon Hardware

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Syscon 1st Generation (BGA Packaging)

Syscon is the main power controller chip. It is responsible for powering up the various power systems and for configuring and initialising the CELL BE, RSX and South Bridge. It communicates with these devices via seperate SPI busses. There is external access by JTAG (disabled at factory by blowing a fuse), an EEPROM programming interface and Serial (UART). The Syscon is a SoC and consists of an ARM7TDMI (ARMv4) CPU, a 256KB EEPROM and 16KB RAM.

Serialnumbers @ SKU

Retail

Model Type Board Syscon
part no.
Syscon
Soft ID
Notes
CECHAxx
CECHBxx
0x01
0x02
COK-001 CXR713120-201GB 0B8E
CECHCxx
CECHExx
0x03
0x04
COK-002 or
COK-002W
CXR713120-201GB or
CXR713120-202GB
0C16
CECHGxx 0x05 SEM-001 CXR713120-201GB or
CXR713120-202GB or
CXR713120-203GB
0D52
CECHHxx 0x06 DIA-001 CXR714120-301GB 0DBF
CECHJxx
CECHKxx
0x07 DIA-002 CXR714120-301GB or
CXR714120-302GB
0E69
CECHLxx
CECHMxx
CECHPxx
CECHQxx
0x08 VER-001 SW-301 or
SW-302
065D
CECH-20xx 0x09 DYN-001 SW2-301 0832
CECH-21xx 0x0A SUR-001 SW2-301 or
SW2-302
08A0
CECH-25xx 0x0B JTP-001 or
JSD-001
SW2-301 or
SW2-302  or
SW2-303
08C2
CECH-30xx 0x0C KTE-001 SW2-301 or
SW2-302 or
SW2-303
0918
CECH-40xx 0x0D MSX-001 or
MPX-001
SW3-302 098F

Non retail

Model Type Board Syscon
part no.
Syscon
Soft ID
Active JTAG Notes
CEB-2040 - MPU-501 CXR713F120GB-000 Yes Retail prototype
DECR1000(A/J) 0x01 TMU-520 CXR713F120A 03FB ? Reference tool
DEH-H1000A(S)(-E(S)) 0x01 COK-001 (Prototype) CXR713F120A 0B67 ? Preproduction
DEH-H1001-D 0x01 COOKIE-13 CXR713F120A ?0B67? ? Preproduction
DEH-FH1500J-A VERTIGO-02 Preproduction



Not mentioned:

0F29 - ?
0F38 - ?

Syscon Externalised Ports

Note: for more specific information per model, see the links to each subppage in the Serialnumbers @ SKU table.

Syscon UART packets

SCUART daemon (SCUARTD) packet structure

SCUARTD packets includes header of 0x3 bytes and optional payload (depending on the command). Packet IDs are not important, they are used only by clients and processed by SCUART daemon. SCUART daemon opens terminal file /dev/ttyS0 and use it to send commands and receive responses.

Offset Size Description
0x00 0x01 Magic?
0x01 0x01 Payload size
0x02 0x01 Command
0x03 Payload size Payload data

Packets

Packet ID Command/Action Description Notes
0x00 version
0x01 bringup
0x02 shutdown
0x03 firmud Firmware update It actually notifies syscon for starting a firmware update operation and calls SX program which implements ZMODEM protocol for transfer
0x04 bsn Board Serial Number Retrieves Board Serial Number
0x05 halt
0x06 cp ready
0x07 cp busy
0x08 cp reset
0x09 bestat
0x0A powersw
0x0B resetsw
0x0C bootbeep stat
0x0D bootbeep on
0x0E ??? Reset mullion?
0x0F xdrdiag info
0x10 xdrdiag start
0x11 xdrdiag result
0x12 xiodiag
0x13 fandiag
0x14 errlog
0x15 ???
0x16 tmpforcp
0x1F cp beepremote
0x20 cp beep2kn1n3
0x21 cp beep2kn2n3

Real syscon packets have an ASCII form instead of bytes above.

An implementation of *MODEM transfer protocols used by Sony: https://github.com/jnavila/lrzsz/tree/master/src

Syscon UART

BGA Name Description
P16 UART0_TxD Serial Transmit
P15 UART0_RxD Serial Receive

You can attach a 3.3v TTL cable (LV-TTL) to the UART on syscon (UART0_TxD, UART0_RxD). Baud rate is 57600. There is a simple plaintext protocol involved. This varies on different syscon models. Example:

<command>:<hash>

Where the hash is the sum of command bytes & 0xFF

you should terminate commands with \r\n, the syscon messages are only terminated with \n

Samples

Here are some of the commands/messages encountered:

Messages:

Power applied (standby mode)
OK 00000000:3A

Power on
# (PowerOn State):7F

Power off (Hard shutdown)
# (PowerOff State):DD

After Fan test:
# (PowerOff State) (Fatal):36

No text, invalid hash:
NG F0000002:4D

Commands:

VER:ED
OK 00000000 S1E 00 00 065D:A4

ERRLOG:CB
OK 00000000:3A

DATE:1E
NG F0000003:4E

C:F1:BUZ
E:4F:NG F0000004

C:D0:CID
E:50:NG F0000005

C:DA:EEP
E:50:NG F0000005

C:D5:FAN
E:50:NG F0000005

C:F4:KSV
E:50:NG F0000005

C:ED:REV
E:50:NG F0000005

C:F8:SPU
E:50:NG F0000005

more Syscon commands

bruteforcing commands: http://pastebin.com/CNei0xbC


Syscon (SPI) EEPROM

BGA Name Description
F16 CSB Chip Select (needs to be low)
H16 DO Serial Data Output
G16 DI Serial Data Input
E16 SKB Serial Data Clock
J15 WCB Write Protect
J16 RBB Ready/Busy
G11 VDDep + 3.3V
C15 VSSep GND

Syscon JTAG

disabled in factory after production on retailmodels

BGA Name Description
L8 JRTCK Return Test Clock
K8 JTCK Test Clock
K9 JTDO Test Data Out
L9 JTMS Test Mode State / Test Mode Select
K7 JTDI Test Data In
L7 JNTRST Test Reset

Syscon Underlaying ports

Syscon Cell SPI Bus

BGA Name Description
M2 /BE_SPI_CS Chip Select
N2 BE_SPI_DO Serial Data Output
M1 BE_SPI_DI Serial Data Input
N1 BE_SPI_CLK Serial Data Clock
P2 /BE_RESET CellBE Reset
P1 BE_POWGOOD CellBE PowerGood
T2 /BE_INT CellBE Interrupt

Syscon Southbridge SPI Bus

BGA Name Description
B9 /SB_SPI_CS Chip Select
B8 SB_SPI_DO Serial Data Output
A9 SB_SPI_DI Serial Data Input
A8 SB_SPI_CLK Serial Data Clock