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Elphel
x393_sata
Commits
05c77d23
Commit
05c77d23
authored
Aug 12, 2015
by
Alexey Grebenkin
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Complete host commit, pre-testing
parent
1aebe5e1
Changes
4
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4 changed files
with
368 additions
and
240 deletions
+368
-240
oob.v
host/oob.v
+13
-2
oob_ctrl.v
host/oob_ctrl.v
+169
-0
sata_host.v
sata_host.v
+105
-155
sata_phy.v
sata_phy.v
+81
-83
No files found.
host/oob.v
View file @
05c77d23
...
...
@@ -33,8 +33,6 @@ module oob #(
input
wire
clk
,
// reset oob
input
wire
rst
,
// gtx is ready = all resets are done TODO move it to control oobstart/status control block
input
wire
gtx_ready
,
// oob responces
input
wire
rxcominitdet_in
,
input
wire
rxcomwakedet_in
,
...
...
@@ -64,6 +62,8 @@ module oob #(
// doc p265, link is established after 3back-to-back non-ALIGNp
output
wire
link_up
,
// link goes down - if rxelecidle
output
wire
link_down
,
// the device itself sends cominit
output
wire
cominit_req
,
...
...
@@ -196,6 +196,17 @@ assign txelecidle = set_wait_cominit | txelecidle_r;
// indicate if link up condition was made
assign
link_up
=
clr_wait_linkup
;
// link goes down when line is idle
reg
rxelecidle_r
;
reg
rxelecidle_rr
;
always
@
(
posedge
clk
)
begin
rxelecidle_rr
<=
rxelecidle_r
;
rxelecidle_r
<=
rxelecidle
;
end
assign
link_down
=
rxelecidle_rr
;
// indicate that device is requesting for oob
reg
cominit_req_r
;
wire
cominit_req_set
;
...
...
host/oob_ctrl.v
0 → 100644
View file @
05c77d23
/*******************************************************************************
* Module: oob_ctrl
* Date: 2015-07-11
* Author: Alexey
* Description: module to start oob sequences and to handle errors
*
* Copyright (c) 2015 Elphel, Inc.
* oob_ctrl.v is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* oob_ctrl.v file is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/> .
*******************************************************************************/
`include
"oob.v"
module
oob_ctrl
#(
parameter
DATA_BYTE_WIDTH
=
4
,
parameter
CLK_SPEED_GRADE
=
2
// 1 - 75 Mhz, 2 - 150Mhz, 4 - 300Mhz
)
(
// sata clk = usrclk2
input
wire
clk
,
// reset oob
input
wire
rst
,
// gtx is ready = all resets are done
input
wire
gtx_ready
,
// oob responces
input
wire
rxcominitdet_in
,
input
wire
rxcomwakedet_in
,
input
wire
rxelecidle_in
,
// oob issues
output
wire
txcominit
,
output
wire
txcomwake
,
output
wire
txelecidle
,
// input data stream (if any data during OOB setting => ignored)
input
wire
[
DATA_BYTE_WIDTH
*
8
-
1
:
0
]
txdata_in
,
input
wire
[
DATA_BYTE_WIDTH
-
1
:
0
]
txcharisk_in
,
// output data stream to gtx
output
wire
[
DATA_BYTE_WIDTH
*
8
-
1
:
0
]
txdata_out
,
output
wire
[
DATA_BYTE_WIDTH
-
1
:
0
]
txcharisk_out
,
// input data from gtx
input
wire
[
DATA_BYTE_WIDTH
*
8
-
1
:
0
]
rxdata_in
,
input
wire
[
DATA_BYTE_WIDTH
-
1
:
0
]
rxcharisk_in
,
// bypassed data from gtx
output
wire
[
DATA_BYTE_WIDTH
*
8
-
1
:
0
]
rxdata_out
,
output
wire
[
DATA_BYTE_WIDTH
-
1
:
0
]
rxcharisk_out
,
// obvious
input
wire
rxbyteisaligned
,
// shows if channel is ready
output
wire
phy_ready
)
;
// oob sequence needs to be issued
wire
oob_start
;
// connection established, all further data is valid
wire
oob_done
;
// doc p265, link is established after 3back-to-back non-ALIGNp
wire
link_up
;
wire
link_down
;
// the device itself sends cominit
wire
cominit_req
;
// allow to respond to cominit
wire
cominit_allow
;
// status information to handle by a control block if any exists
// incompatible host-device speed grades (host cannot lock to alignp)
wire
oob_incompatible
;
// TODO
// timeout in an unexpected place
wire
oob_error
;
// noone responds to our cominits
wire
oob_silence
;
// for the resync sake
reg
rxbyteisaligned_r
;
reg
rxbyteisaligned_rr
;
always
@
(
posedge
clk
)
begin
rxbyteisaligned_rr
<=
rxbyteisaligned_r
;
rxbyteisaligned
<=
rxbyteisaligned
;
end
// 1 - link is up and running, 0 - probably not
reg
link_state
;
// 1 - connection is being established, 0 - is not
reg
oob_state
;
assign
phy_ready
=
link_state
&
gtx_ready
&
rxbyteisaligned_rr
;
always
@
(
posedge
clk
)
link_state
<=
(
link_state
|
link_up
)
&
~
link_down
&
~
rst
;
always
@
(
posedge
clk
)
oob_state
<=
(
oob_state
|
oob_start
|
cominit_req
&
cominit_allow
)
&
~
oob_error
&
~
oob_silence
&
~
link_up
&
~
rst
;
// decide when to issue oob: always when gtx is ready
assign
oob_start
=
gtx_ready
&
~
oob_state
;
// let devices always begin oob sequence, if only it's not a glitch
assign
cominit_allow
=
cominit_req
&
link_state
;
oob
#(
.
DATA_BYTE_WIDTH
(
DATA_BYTE_WIDTH
)
,
.
CLK_SPEED_GRADE
(
CLK_SPEED_GRADE
)
)
oob
(
// sata clk = usrclk2
.
clk
(
clk
)
,
// reset oob
.
rst
(
rst
)
,
// oob responces
.
rxcominitdet_in
(
rxcominitdet_in
)
,
.
rxcomwakedet_in
(
rxcomwakedet_in
)
,
.
rxelecidle_in
(
rxelecidle_in
)
,
// oob issues
.
txcominit
(
txcominit
)
,
.
txcomwake
(
txcomwake
)
,
.
txelecidle
(
txelecidle
)
,
// input data stream (if any data during OOB setting => ignored)
.
txdata_in
(
txdata_in
)
,
.
txcharisk_in
(
txcharisk_in
)
,
// output data stream to gtx
.
txdata_out
(
txdata_out
)
,
.
txcharisk_out
(
txcharisk_out
)
,
// input data from gtx
.
rxdata_in
(
rxdata_in
)
,
.
rxcharisk_in
(
rxcharisk_in
)
,
// bypassed data from gtx
.
rxdata_out
(
rxdata_out
)
,
.
rxcharisk_out
(
rxcharisk_out
)
,
// oob sequence needs to be issued
.
oob_start
(
oob_start
)
,
// connection established, all further data is valid
.
oob_done
(
oob_done
)
,
// doc p265, link is established after 3back-to-back non-ALIGNp
.
link_up
(
link_up
)
,
.
link_down
(
link_down
)
,
// the device itself sends cominit
.
cominit_req
(
cominit_req
)
,
// allow to respond to cominit
.
cominit_allow
(
cominit_allow
)
,
// status information to handle by a control block if any exists
// incompatible host-device speed grades (host cannot lock to alignp)
.
oob_incompatible
(
oob_incompatible
)
,
// timeout in an unexpected place
.
oob_error
(
oob_error
)
,
// noone responds to our cominits
.
oob_silence
(
oob_silence
)
)
;
endmodule
sata_host.v
View file @
05c77d23
...
...
@@ -18,45 +18,15 @@
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/> .
*******************************************************************************/
/*
* For now assuming the actual rtl would be Ashwin's
*/
module
sata_host
(
// TODO trim these old interfaces
// command, control and status
output
wire
ready_for_cmd
,
input
wire
new_cmd
,
input
wire
[
1
:
0
]
cmd_type
,
input
wire
[
31
:
0
]
sector_count
,
input
wire
[
31
:
0
]
sector_addr
,
// data and user clock
input
wire
[
31
:
0
]
sata_din
,
input
wire
sata_din_we
,
output
wire
sata_core_full
,
output
wire
[
31
:
0
]
sata_dout
,
input
wire
sata_dout_re
,
output
wire
sata_core_empty
,
input
wire
data_clk_in
,
input
wire
data_clk_out
,
// timer
output
wire
[
31
:
0
]
sata_timer
,
// phy
input
wire
clkin_150
,
input
wire
reset
,
output
wire
linkup
,
output
wire
txp_out
,
output
wire
txn_out
,
input
wire
rxp_in
,
input
wire
rxn_in
,
output
wire
plllkdet
,
output
wire
dcmlocked
// end of old ifaces
`include
"sata_phy.v"
`include
"link.v"
`include
"transport.v"
`include
"command.v"
module
sata_host
(
input
wire
rst
,
// sata clk
output
wire
clk
,
// temporary
input
wire
[
31
:
0
]
al_cmd_in
;
// == {cmd_type, cmd_port, cmd_val, cmd_done_bad, cmd_done_good; cmd_busy}
input
wire
al_cmd_val_in
;
...
...
@@ -102,7 +72,15 @@ module sata_host(
input
wire
[
3
:
0
]
al_sh_port_in
,
input
wire
al_sh_port_val_in
,
// top-level ifaces
// ref clk from an external source, shall be connected to pads
input
wire
extclk_p
;
input
wire
extclk_n
;
// sata physical link data pins
input
wire
txp_out
;
input
wire
txn_out
;
input
wire
rxp_in
;
input
wire
rxn_in
;
)
;
...
...
@@ -313,36 +291,36 @@ command command(
)
;
// issue a frame
wire
frame_req
;
wire
tl2ll_
frame_req
;
// frame started to be transmitted
wire
frame_ack
;
wire
tl2ll_
frame_ack
;
// frame issue was rejected because of incoming frame with higher priority
wire
frame_rej
;
wire
tl2ll_
frame_rej
;
// LL is not ready to receive a frame request. frame_req shall be low if busy is asserted
wire
frame_busy
;
wire
tl2ll_
frame_busy
;
// frame was transmitted w/o probles and successfully received @ a device side
wire
frame_done_good
;
wire
tl2ll_
frame_done_good
;
// frame was transmitted, but device messages of problems with receiving
wire
frame_done_bad
;
wire
tl2ll_
frame_done_bad
;
// LL reports of an incoming frame transmission. They're always allowed and have the highest priority
wire
incom_start
;
wire
ll2tl_
incom_start
;
// LL reports of a completion of an incoming frame transmission.
wire
incom_done
;
wire
ll2tl_
incom_done
;
// LL reports of errors in current FIS
wire
incom_invalidate
;
// TODO
wire
ll2tl_
incom_invalidate
;
// TODO
// TL analyzes FIS and returnes if FIS makes sense.
wire
incom_ack_good
;
wire
ll2tl_
incom_ack_good
;
// ... and if it doesn't
wire
incom_ack_bad
;
wire
ll2tl_
incom_ack_bad
;
// transmission interrupts
// TL demands to brutally cancel current transaction TODO
wire
sync_escape_req
;
wire
tl2ll_
sync_escape_req
;
// acknowlegement of a successful reception TODO
wire
sync_escape_ack
;
wire
tl2ll_
sync_escape_ack
;
// TL demands to stop current recieving session TODO
wire
incom_stop_req
;
wire
tl2ll_
incom_stop_req
;
// shows if dma activate was received (a pulse)
wire
got_dma_activate
;
...
...
@@ -352,20 +330,20 @@ wire data_limit_exceeded;
// LL data
// data inputs from LL
wire
[
DATA_BYTE_WIDTH
*
8
-
1
:
0
]
ll
_data_in
;
wire
[
DATA_BYTE_WIDTH
/
2
-
1
:
0
]
ll
_data_mask_in
;
wire
ll
_data_val_in
;
wire
ll
_data_last_in
;
wire
[
DATA_BYTE_WIDTH
*
8
-
1
:
0
]
ll
2tl_data
;
wire
[
DATA_BYTE_WIDTH
/
2
-
1
:
0
]
ll
2tl_data_mask
;
wire
ll
2tl_data_val
;
wire
ll
2tl_data_last
;
// transport layer tells if its inner buffer is almost full
wire
ll
_data_busy_out
;
wire
ll
2tl_data_busy
;
// data outputs to LL
wire
[
DATA_BYTE_WIDTH
*
8
-
1
:
0
]
ll_data_out
;
wire
[
DATA_BYTE_WIDTH
*
8
-
1
:
0
]
tl2ll_data
;
// not implemented yet TODO
wire
[
DATA_BYTE_WIDTH
*
8
-
1
:
0
]
ll_data_mask_out
;
wire
ll_data_last_ou
t
;
wire
ll_data_val_out
;
wire
ll_data_strobe_in
;
wire
[
DATA_BYTE_WIDTH
*
8
-
1
:
0
]
tl2ll_data_mask
;
wire
tl2ll_data_las
t
;
wire
tl2ll_data_val
;
wire
tl2ll_data_strobe
;
// watchdog timers calls. They shall be handled in TL, but for debug purposes are wired to the upper level
// when eof acknowledgement is not received after sent FIS
...
...
@@ -529,76 +507,19 @@ transport transport(
)
;
// data s from transport layer
// data stream (if any data during OOB setting => ignored)
wire
[
DATA_BYTE_WIDTH
*
8
-
1
:
0
]
data_in
,
// in case of strange data aligments and size (1st mentioned @ doc, p.310, odd number of words case)
// Actually, only last data bundle shall be masked, others are always valid.
// Mask could be encoded into 3 bits instead of 4 for qword, but encoding+decoding aren't worth the bit
// TODO, for now not supported, all mask bits are assumed to be set
wire
[
DATA_BYTE_WIDTH
/
2
-
1
:
0
]
data_mask_in
,
// buffer read strobe
wire
data_strobe_out
,
// transaction's last data budle pulse
wire
data_last_in
,
// read data is valid (if 0 while last pulse wasn't received => need to hold the line)
wire
data_val_in
,
// data s to transport layer
// read data, same as related s
wire
[
DATA_BYTE_WIDTH
*
8
-
1
:
0
]
data_out
,
// same thing - all 1s for now. TODO
wire
[
DATA_BYTE_WIDTH
/
2
-
1
:
0
]
data_mask_out
,
// count every data bundle read by transport layer, even if busy flag is set
// let the transport layer handle oveflows by himself
wire
data_val_out
,
// transport layer tells if its inner buffer is almost full
wire
data_busy_in
,
wire
data_last_out
,
// request for a new frame transition
wire
frame_req
,
// a little bit of overkill with the cound of response signals, think of throwing out 1 of them
// LL tells back if it cant handle the request for now
wire
frame_busy
,
// LL tells if the request is transmitting
wire
frame_ack
,
// or if it was cancelled because of simultanious incoming transmission
wire
frame_rej
,
// TL tell if the outcoming transaction is done and how it was done
wire
frame_done_good
,
wire
frame_done_bad
,
// if started an incoming transaction
wire
incom_start
,
// if incoming transition was completed
wire
incom_done
,
// if incoming transition had errors
wire
incom_invalidate
,
// transport layer responds on a completion of a FIS
wire
incom_ack_good
,
wire
incom_ack_bad
,
// oob sequence is reinitiated and link now is not established or rxelecidle
wire
link_reset
,
// TL demands to brutally cancel current transaction
wire
sync_escape_req
,
// acknowlegement of a successful reception
wire
sync_escape_ack
,
// TL demands to stop current recieving session
wire
incom_stop_req
,
// s from phy
// phy is ready - link is established
wire
phy_ready
,
// data-primitives stream from phy
wire
[
DATA_BYTE_WIDTH
*
8
-
1
:
0
]
phy
_data_in
,
wire
[
DATA_BYTE_WIDTH
/
2
-
1
:
0
]
phy
_isk_in
,
// charisk
wire
[
DATA_BYTE_WIDTH
/
2
-
1
:
0
]
phy
_err_in
,
// disperr | notintable
wire
[
DATA_BYTE_WIDTH
*
8
-
1
:
0
]
phy
2ll_data
;
wire
[
DATA_BYTE_WIDTH
/
2
-
1
:
0
]
phy
2ll_isk
;
// charisk
wire
[
DATA_BYTE_WIDTH
/
2
-
1
:
0
]
phy
2ll_err
;
// disperr | notintable
// to phy
wire
[
DATA_BYTE_WIDTH
*
8
-
1
:
0
]
phy_data_out
,
wire
[
DATA_BYTE_WIDTH
/
2
-
1
:
0
]
phy_isk_out
// charisk
wire
[
DATA_BYTE_WIDTH
*
8
-
1
:
0
]
ll2phy_data
;
wire
[
DATA_BYTE_WIDTH
/
2
-
1
:
0
]
ll2phy_isk
;
// charisk
link
link
(
...
...
@@ -608,73 +529,102 @@ link link(
// data inputs from transport layer
// input data stream (if any data during OOB setting => ignored)
.
data_in
(
data_in
)
,
.
data_in
(
tl2ll_data
)
,
// in case of strange data aligments and size (1st mentioned @ doc, p.310, odd number of words case)
// Actually, only last data bundle shall be masked, others are always valid.
// Mask could be encoded into 3 bits instead of 4 for qword, but encoding+decoding aren't worth the bit
// TODO, for now not supported, all mask bits are assumed to be set
.
data_mask_in
(
data_mask_in
)
,
.
data_mask_in
(
tl2ll_data_mask
)
,
// buffer read strobe
.
data_strobe_out
(
data_strobe_out
)
,
.
data_strobe_out
(
tl2ll_data_strobe
)
,
// transaction's last data budle pulse
.
data_last_in
(
data_last_in
)
,
.
data_last_in
(
tl2ll_data_last
)
,
// read data is valid (if 0 while last pulse wasn't received => need to hold the line)
.
data_val_in
(
data_val_in
)
,
.
data_val_in
(
tl2ll_val
)
,
// data outputs to transport layer
// read data, same as related inputs
.
data_out
(
data_out
)
,
.
data_out
(
ll2tl_data
)
,
// same thing - all 1s for now. TODO
.
data_mask_out
(
data_mask_out
)
,
.
data_mask_out
(
ll2tl_data_mask
)
,
// count every data bundle read by transport layer, even if busy flag is set
// let the transport layer handle oveflows by himself
.
data_val_out
(
data_val_out
)
,
.
data_val_out
(
ll2tl_data_val
)
,
// transport layer tells if its inner buffer is almost full
.
data_busy_in
(
data_busy_in
)
,
.
data_last_out
(
data_last_ou
t
)
,
.
data_busy_in
(
ll2tl_busy
)
,
.
data_last_out
(
ll2tl_data_las
t
)
,
// request for a new frame transition
.
frame_req
(
frame_req
)
,
.
frame_req
(
tl2ll_
frame_req
)
,
// a little bit of overkill with the cound of response signals, think of throwing out 1 of them
// LL tells back if it cant handle the request for now
.
frame_busy
(
frame_busy
)
,
.
frame_busy
(
tl2ll_
frame_busy
)
,
// LL tells if the request is transmitting
.
frame_ack
(
frame_ack
)
,
.
frame_ack
(
tl2ll_
frame_ack
)
,
// or if it was cancelled because of simultanious incoming transmission
.
frame_rej
(
frame_rej
)
,
.
frame_rej
(
tl2ll_
frame_rej
)
,
// TL tell if the outcoming transaction is done and how it was done
.
frame_done_good
(
frame_done_good
)
,
.
frame_done_bad
(
frame_done_bad
)
,
.
frame_done_good
(
tl2ll_
frame_done_good
)
,
.
frame_done_bad
(
tl2ll_
frame_done_bad
)
,
// if started an incoming transaction
.
incom_start
(
incom_start
)
,
.
incom_start
(
ll2tl_
incom_start
)
,
// if incoming transition was completed
.
incom_done
(
incom_done
)
,
.
incom_done
(
ll2tl_
incom_done
)
,
// if incoming transition had errors
.
incom_invalidate
(
incom_invalidate
)
,
.
incom_invalidate
(
ll2tl_
incom_invalidate
)
,
// transport layer responds on a completion of a FIS
.
incom_ack_good
(
incom_ack_good
)
,
.
incom_ack_bad
(
incom_ack_bad
)
,
.
incom_ack_good
(
ll2tl_
incom_ack_good
)
,
.
incom_ack_bad
(
ll2tl_
incom_ack_bad
)
,
// oob sequence is reinitiated and link now is not established or rxelecidle
.
link_reset
(
link_reset
)
,
// TL demands to brutally cancel current transaction
.
sync_escape_req
(
sync_escape_req
)
,
.
sync_escape_req
(
tl2ll_
sync_escape_req
)
,
// acknowlegement of a successful reception
.
sync_escape_ack
(
sync_escape_ack
)
,
.
sync_escape_ack
(
tl2ll_
sync_escape_ack
)
,
// TL demands to stop current recieving session
.
incom_stop_req
(
incom_stop_req
)
,
.
incom_stop_req
(
tl2ll_
incom_stop_req
)
,
// inputs from phy
// phy is ready - link is established
.
phy_ready
(
phy_ready
)
,
// data-primitives stream from phy
.
phy_data_in
(
phy
_data_in
)
,
.
phy_isk_in
(
phy
_isk_in
)
,
// charisk
.
phy_err_in
(
phy
_err_in
)
,
// disperr | notintable
.
phy_data_in
(
phy
2ll_data
)
,
.
phy_isk_in
(
phy
2ll_isk
)
,
// charisk
.
phy_err_in
(
phy
2ll_err
)
,
// disperr | notintable
// to phy
.
phy_data_out
(
phy_data_out
)
,
.
phy_isk_out
// charis
.
phy_data_out
(
ll2phy_data
)
,
.
phy_isk_out
(
ll2phy_isk
)
// charis
)
;
sata_phy
phy
(
.
rst
(
rst
)
,
// sata clk, generated in pll as usrclk2
.
clk
(
clk
)
,
// state
.
phy_ready
(
phy_ready
)
,
// top-level ifaces
// ref clk from an external source, shall be connected to pads
.
extclk_p
(
extclk_p
)
,
.
extclk_n
(
extclk_n
)
,
// sata link data pins
.
txp_out
(
txp_out
)
,
.
txn_out
(
txn_out
)
,
.
rxp_in
(
rxp_in
)
,
.
rxn_in
(
rxn_in
)
,
// to link layer
.
ll_data_out
(
phy2ll_data
)
,
.
ll_charisk_out
(
phy2ll_isk
)
,
.
ll_err_out
(
phy2ll_err
)
,
// from link layer
.
ll_data_in
(
ll2phy_data
)
,
.
ll_charisk_in
(
ll2phy_charisk
)
)
;
endmodule
sata_phy.v
View file @
05c77d23
...
...
@@ -2,7 +2,7 @@
* Module: sata_phy
* Date: 2015-07-11
* Author: Alexey
* Description:
Ashwin's sata_phy replacement with 7-series support
* Description:
phy-level, including oob, clock generation and GTXE2
*
* Copyright (c) 2015 Elphel, Inc.
* sata_phy.v is free software; you can redistribute it and/or modify
...
...
@@ -18,46 +18,45 @@
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/> .
*******************************************************************************/
`include
"oob_ctrl.v"
module
sata_phy
(
input
wire
REFCLK_PAD_P_IN
,
// GTX reference clock input
input
wire
REFCLK_PAD_N_IN
,
// GTX reference clock input
input
wire
RXP0_IN
,
// Receiver input
input
wire
RXN0_IN
,
// Receiver input
input
wire
GTXRESET_IN
,
// Main GTX reset
input
wire
CLKIN_150
,
// reliable clock input
input
wire
rst
,
// sata clk, generated in pll as usrclk2
output
wire
clk
,
// Input from Link Layer
input
wire
[
31
:
0
]
tx_datain
,
input
wire
tx_charisk_in
,
output
wire
DCMLOCKED_OUT
,
// DCM locked
output
wire
PLLLKDET_OUT_N
,
// PLL Lock Detect
output
wire
TXP0_OUT
,
output
wire
TXN0_OUT
,
output
wire
LINKUP
,
output
wire
LINKUP_led
,
output
wire
GEN2_led
,
output
wire
align_en_out
,
output
wire
sata_user_clk
,
// Outputs to Link Layer
output
wire
[
31
:
0
]
rx_dataout
,
output
wire
[
3
:
0
]
rx_charisk_out
,
output
wire
[
7
:
0
]
CurrentState_out
,
output
wire
rxelecidle_out
,
// Rudiments
input
wire
[
35
:
0
]
sata_phy_ila_control
,
input
wire
[
35
:
0
]
oob_control_ila_control
// state
output
wire
phy_ready
,
// top-level ifaces
// ref clk from an external source, shall be connected to pads
input
wire
extclk_p
,
input
wire
extclk_n
,
// sata link data pins
output
wire
txp_out
,
output
wire
txn_out
,
input
wire
rxp_in
,
input
wire
rxn_in
,
// to link layer
output
wire
[
31
:
0
]
ll_data_out
,
output
wire
[
3
:
0
]
ll_charisk_out
,
output
wire
[
3
:
0
]
ll_err_out
,
// TODO!!!
// from link layer
input
wire
[
31
:
0
]
ll_data_in
,
input
wire
[
3
:
0
]
ll_charisk_in
)
;
parameter
CHIPSCOPE
=
"FALSE"
;
wire
[
31
:
0
]
txdata
;
wire
txcharisk
;
wire
[
3
:
0
]
txcharisk
;
wire
[
63
:
0
]
rxdata
;
wire
[
7
:
0
]
rxcharisk
;
wire
[
3
:
0
]
rxcharisk
;
wire
[
31
:
0
]
rxdata_out
;
wire
[
31
:
0
]
txdata_in
;
wire
[
3
:
0
]
txcharisk_in
;
wire
[
3
:
0
]
rxcharisk_out
;
wire
linkup
;
wire
linkup_led
;
wire
rxcomwakedet
;
wire
rxcominitdet
;
...
...
@@ -69,37 +68,41 @@ wire rxelecidle;
wire
txelecidle
;
wire
rxbyteisaligned
;
OOB_control
oob_control
(
.
oob_control_ila_control
(
36'h0
)
,
//-------- GTX Ports --------/
.
clk
(
sata_user_clk
)
,
.
reset
(
GTXRESET_IN
)
,
.
rxreset
(
/*rxreset*/
)
,
.
rx_locked
(
cplllock
)
,
// OOB generation and detection signals from GTX
oob_ctrl
oob_ctrl
(
// sata clk = usrclk2
.
clk
(
clk
)
,
// reset oob
.
rst
(
rst
)
,
// gtx is ready = all resets are done
.
gtx_ready
(
gtx_ready
)
,
// oob responces
.
rxcominitdet_in
(
rxcominitdet
)
,
.
rxcomwakedet_in
(
rxcomwakedet
)
,
.
rxelecidle_in
(
rxelecidle
)
,
// oob issues
.
txcominit
(
txcominit
)
,
.
txcomwake
(
txcomwake
)
,
.
cominitdet
(
rxcominitdet
)
,
.
comwakedet
(
rxcomwakedet
)
,
.
txelecidle
(
txelecidle
)
,
.
rxelecidle
(
rxelecidle
)
,
.
txelecidle_out
(
txelecidle
)
,
// input data stream (if any data during OOB setting => ignored)
.
txdata_in
(
txdata_in
)
,
.
txcharisk_in
(
txcharisk_in
)
,
// output data stream to gtx
.
txdata_out
(
txdata_out
)
,
.
txcharisk_out
(
txcharisk_out
)
,
// input data from gtx
.
rxdata_in
(
rxdata_in
)
,
.
rxcharisk_in
(
rxcharisk_in
)
,
// bypassed data from gtx
.
rxdata_out
(
rxdata_out
)
,
.
rxcharisk_out
(
rxcharisk_out
)
,
// receiving data is aligned
.
rxbyteisaligned
(
rxbyteisaligned
)
,
.
tx_dataout
(
txdata
)
,
// outgoing GTX data
.
tx_charisk_out
(
txcharisk
)
,
// GTX charisk out
.
rx_datain
(
rxdata
[
31
:
0
])
,
// incoming GTX data
.
rx_charisk_in
(
rxcharisk
[
3
:
0
])
,
// GTX charisk in
.
gen2
(
1'b1
)
,
// for SATA Generation 2
//----- USER DATA PORTS---------//
.
tx_datain
(
tx_datain
)
,
// User datain port
.
tx_charisk_in
(
tx_charisk_in
)
,
// User charisk in port
.
rx_dataout
(
rxdata_out
)
,
// User dataout port
.
rx_charisk_out
(
rxcharisk_out
)
,
// User charisk out port
.
linkup
(
linkup
)
,
.
linkup_led_out
(
linkup_led
)
,
.
align_en_out
(
align_en_out
)
,
.
CurrentState_out
(
CurrentState_out
)
// shows if channel is ready
.
phy_ready
(
phy_ready
)
)
;
wire
cplllockdetclk
;
// TODO
...
...
@@ -147,7 +150,7 @@ always @ (posedge gtrefclk)
*/
wire
usrpll_locked
;
assign
cpllreset
=
GTXRESET_IN
;
assign
cpllreset
=
rst
;
assign
rxreset
=
~
cplllock
|
cpllreset
;
assign
txreset
=
~
cplllock
|
cpllreset
;
assign
rxuserrdy
=
usrpll_locked
&
cplllock
&
~
cpllreset
&
~
rxreset
&
rxeyereset_done
;
...
...
@@ -226,23 +229,21 @@ usrclk_pll(
/*
* Padding for an external input clock @ 150 MHz
* TODO !!! Temporary moved to sata_top
*/
assign
gtrefclk
=
CLKIN_150
;
/*localparam [1:0] CLKSWING_CFG = 2'b11;
localparam
[
1
:
0
]
CLKSWING_CFG
=
2'b11
;
IBUFDS_GTE2
#(
.
CLKRCV_TRST
(
"TRUE"
)
,
.
CLKCM_CFG
(
"TRUE"
)
,
.
CLKSWING_CFG
(
CLKSWING_CFG
)
)
ext_clock_buf
(
.I (
REFCLK_PAD_P_IN
),
.IB (
REFCLK_PAD_N_IN
),
.
I
(
extclk_p
)
,
.
IB
(
extclk_n
)
,
.
CEB
(
1'b0
)
,
.
O
(
gtrefclk
)
,
.
ODIV2
()
)
;
*/
GTXE2_CHANNEL
#(
.
SIM_RECEIVER_DETECT_PASS
(
"TRUE"
)
,
.
SIM_TX_EIDLE_DRIVE_LEVEL
(
"X"
)
,
...
...
@@ -656,7 +657,7 @@ dut(
.
TXOUTCLKPCS
()
,
.
TXOUTCLKSEL
(
3'b010
)
,
.
TXRATEDONE
()
,
.
TXCHARISK
(
{
7
'b0
,
txcharisk
}
)
,
.
TXCHARISK
(
{
4
'b0
,
txcharisk
}
)
,
.
TXGEARBOXREADY
()
,
.
TXHEADER
(
3'd0
)
,
.
TXSEQUENCE
(
7'd0
)
,
...
...
@@ -683,20 +684,17 @@ dut(
/*
* Interfaces
*/
assign
DCMLOCKED_OUT
=
usrpll_locked
;
assign
PLLLKDET_OUT_N
=
cplllock
;
assign
rxn
=
RXN0_IN
;
assign
rxp
=
RXP0_IN
;
assign
TXN0_OUT
=
txn
;
assign
TXP0_OUT
=
txp
;
assign
cplllockdetclk
=
CLKIN_150
;
assign
drpclk
=
CLKIN_150
;
assign
LINKUP
=
linkup
;
assign
LINKUP_led
=
linkup_led
;
assign
rx_dataout
=
rxdata_out
;
assign
rx_charisk_out
=
rxcharisk_out
;
assign
rxelecidle_out
=
rxelecidle
;
assign
GEN2_led
=
1'b0
;
assign
sata_user_clk
=
usrclk2
;
assign
clk
=
usrclk2
;
assign
rxn
=
rxn_in
;
assign
rxp
=
rxp_in
;
assign
txp_out
=
txn
;
assign
txp_out
=
txp
;
assign
ll_data_out
=
rxdata_out
;
assign
ll_charisk_out
=
rxcharisk_out
;
assign
txdata_in
=
ll_data_in
;
assign
txcharisk_in
=
ll_charisk_in
;
endmodule
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