ls2.git
2 years agoread 2nd word of signature
Luke Kenneth Casson Leighton [Fri, 22 Apr 2022 15:12:39 +0000 (16:12 +0100)]
read 2nd word of signature

2 years agomove hyperram to 0x0000_00000 and 0x2000_0000
Luke Kenneth Casson Leighton [Fri, 22 Apr 2022 14:29:59 +0000 (15:29 +0100)]
move hyperram to 0x0000_00000 and 0x2000_0000
to start memory range 0-64mbytes
also document the startup process for arty a7-100t which is a bit arcane

2 years agoadd second hyperram module, for arty-a7,
Luke Kenneth Casson Leighton [Fri, 22 Apr 2022 12:49:01 +0000 (13:49 +0100)]
add second hyperram module, for arty-a7,
which does not break things

2 years agoput versa_ecp5 back to synchronous at 50 mhz to test sync dram
Luke Kenneth Casson Leighton [Sat, 16 Apr 2022 20:23:38 +0000 (21:23 +0100)]
put versa_ecp5 back to synchronous at 50 mhz to test sync dram

2 years agoremove stall from WBASyncBridges on master side
Luke Kenneth Casson Leighton [Sat, 16 Apr 2022 18:56:15 +0000 (19:56 +0100)]
remove stall from WBASyncBridges on master side
leave them on slave side and fake them up (stb&~ack)

2 years agoget runsimsoc2.sh running again, test asynchronous wb bridge,
Luke Kenneth Casson Leighton [Sat, 16 Apr 2022 16:27:52 +0000 (17:27 +0100)]
get runsimsoc2.sh running again, test asynchronous wb bridge,
found bug in WBAsyncBridge (in soc) where ack signal was not wired up.
v simple

2 years agoattempting to get VERSA_ECP5 and Icarus Sim to work with ASync Bridge
Luke Kenneth Casson Leighton [Sat, 16 Apr 2022 15:38:40 +0000 (16:38 +0100)]
attempting to get VERSA_ECP5 and Icarus Sim to work with ASync Bridge

2 years agoadd in extra delay-for-core in ECP5CRG
Luke Kenneth Casson Leighton [Sat, 16 Apr 2022 12:31:55 +0000 (13:31 +0100)]
add in extra delay-for-core in ECP5CRG
actually, it is a separate delay for everything-else-except-the-init domain
which is run at a really slow 25 mhz

2 years agoorangecrab: set clock frequency, remove ignored iostandard
Tobias Platen [Sat, 16 Apr 2022 07:44:03 +0000 (09:44 +0200)]
orangecrab: set clock frequency, remove ignored iostandard

2 years agocomment about UARTResource for orangecrab
Luke Kenneth Casson Leighton [Fri, 15 Apr 2022 22:54:10 +0000 (23:54 +0100)]
comment about UARTResource for orangecrab

2 years agoMerge branch 'master' of ssh://git.libre-riscv.org:922/ls2
Tobias Platen [Fri, 15 Apr 2022 19:38:53 +0000 (21:38 +0200)]
Merge branch 'master' of ssh://git.libre-riscv.org:922/ls2

2 years agoadd orangecrab uart and toolchain
Tobias Platen [Fri, 15 Apr 2022 19:38:14 +0000 (21:38 +0200)]
add orangecrab uart and toolchain

2 years agochecking simulation of Async DDR3
Luke Kenneth Casson Leighton [Fri, 15 Apr 2022 17:32:56 +0000 (18:32 +0100)]
checking simulation of Async DDR3

2 years agowork-in-progress
Luke Kenneth Casson Leighton [Fri, 15 Apr 2022 16:48:09 +0000 (17:48 +0100)]
work-in-progress
asynchronous DRAM wishbone bridge which is optional when
dram_clk is not requested

2 years agoreorg of the ECP5 Clock-Reset to be able to add
Luke Kenneth Casson Leighton [Fri, 15 Apr 2022 15:48:43 +0000 (16:48 +0100)]
reorg of the ECP5 Clock-Reset to be able to add
a 2nd clock (DRAM)

2 years agowhitespace
Tobias Platen [Fri, 15 Apr 2022 16:44:27 +0000 (18:44 +0200)]
whitespace

2 years agoadd orangecrab to list of supported boards
Tobias Platen [Fri, 15 Apr 2022 16:03:57 +0000 (18:03 +0200)]
add orangecrab to list of supported boards

2 years agoreduce versa_ecp5 clock freq to 50 mhz, reduce bit-width of XICS addressing
Luke Kenneth Casson Leighton [Thu, 14 Apr 2022 18:45:41 +0000 (19:45 +0100)]
reduce versa_ecp5 clock freq to 50 mhz, reduce bit-width of XICS addressing

2 years agoadd default args in DDR3SoC
Luke Kenneth Casson Leighton [Thu, 14 Apr 2022 15:38:54 +0000 (16:38 +0100)]
add default args in DDR3SoC

2 years agoput fw_addr back to 0xff00_0000, xics.bin test passed
Luke Kenneth Casson Leighton [Thu, 14 Apr 2022 15:26:48 +0000 (16:26 +0100)]
put fw_addr back to 0xff00_0000, xics.bin test passed

2 years agomove firmware to address 0x0 to test microwatt xics.bin
Luke Kenneth Casson Leighton [Thu, 14 Apr 2022 15:23:31 +0000 (16:23 +0100)]
move firmware to address 0x0 to test microwatt xics.bin

2 years agowrap QSPI exploration in SYSCON check for QSPI
Luke Kenneth Casson Leighton [Thu, 14 Apr 2022 15:16:37 +0000 (16:16 +0100)]
wrap QSPI exploration in SYSCON check for QSPI

2 years agoadd DELAYG to icarus sim
Luke Kenneth Casson Leighton [Thu, 14 Apr 2022 14:16:06 +0000 (15:16 +0100)]
add DELAYG to icarus sim

2 years agobleh. add XICS_ICS and XICS_ICP but the patch is
Luke Kenneth Casson Leighton [Thu, 14 Apr 2022 13:42:45 +0000 (14:42 +0100)]
bleh. add XICS_ICS and XICS_ICP but the patch is
a little bigger than expected.
note that a bug ECP5CRG(clk_freq, dram_clk_freq=None, pod_bits=pod_bits)
is also fixed here (whoops)

firstly, the XICS ICP and ICS need adding. but, they are
using make_wb_layout not wishbone.Interface.  therefore,
create a wishbone.Interface (sigh) and map the Signals across
one by one (just like with cvtuartbus)

secondly, the incoming IRQs are wired to GenericInterruptController
which is different from how Testissuer does it.

thirdly, eth_macs IRQ number is moved to 1 in order to match with
the Microwatt soc.vhdl

fourthly, uart_irq is set to 0

fifthly, UART16550 and EthMac needed to have their IRQLine
constructed *here* and passed in, otherwise the entire soc repo
becomes dependent on LambdaSoC just for that one import

sixthly, at the same time, DDRSoC has a uart_addr-0xc0002000 added
to match what soc.vhdl does

seventhly, eth0_cfg_addr is moved to 0xc000_c000 to get it out
of the way of XICS_ICP/ICS at 0xc000_4000 and 0xc000_5000

eigthly, xicx icp/ics are added at 0xc000_4000 and 0xc000_5000

totally broke the "one-purpose, one-commit" rule but not entirely
because after all this is "add XICS controller

2 years agoflash read-and-dump
Luke Kenneth Casson Leighton [Thu, 14 Apr 2022 12:13:23 +0000 (13:13 +0100)]
flash read-and-dump

2 years agocode-comments for when ASyncBridge is deployed
Luke Kenneth Casson Leighton [Thu, 14 Apr 2022 11:03:12 +0000 (12:03 +0100)]
code-comments for when ASyncBridge is deployed

2 years agoadd new dram_clk_freq argument which does nothing for now
Luke Kenneth Casson Leighton [Thu, 14 Apr 2022 10:45:43 +0000 (11:45 +0100)]
add new dram_clk_freq argument which does nothing for now
leaves the dramsync/dramsync2x domains as "aliases" for sync/sync2x
but if set, it will create a *second* completely separate domain
at the requested frequency, along with a separate 2x that can then
be used on IOpads with "xdr=4" settings

2 years agoadd an extra domain dramsync2x in preparation for
Luke Kenneth Casson Leighton [Thu, 14 Apr 2022 10:35:30 +0000 (11:35 +0100)]
add an extra domain dramsync2x in preparation for
AsyncBridge

2 years agoadd a dramsync2x domain as well
Luke Kenneth Casson Leighton [Thu, 14 Apr 2022 10:24:17 +0000 (11:24 +0100)]
add a dramsync2x domain as well

2 years agomove 2x-clock-and-dividing into separate function in ECP5 CRG
Luke Kenneth Casson Leighton [Thu, 14 Apr 2022 09:41:06 +0000 (10:41 +0100)]
move 2x-clock-and-dividing into separate function in ECP5 CRG
the reason for this is to make it easy to set up xdr=4x IOpads
which need a *pair* of domains in order to get the 4 phases:
double-freq and freq

2 years agoannoying, coldboot.bin getting too big to fit into 0x8000 SRAM
Luke Kenneth Casson Leighton [Wed, 13 Apr 2022 12:52:07 +0000 (13:52 +0100)]
annoying, coldboot.bin getting too big to fit into 0x8000 SRAM
really need to increase SRAM size in ls2.py

2 years agoget microwatt-verilator sim running at different boot base
Luke Kenneth Casson Leighton [Wed, 13 Apr 2022 10:11:57 +0000 (11:11 +0100)]
get microwatt-verilator sim running at different boot base
and confirm working with hello_world recompiled to a different coldboot
start address

2 years agoGAH jump to start of SPI Flash not the offset *in* SPI
Luke Kenneth Casson Leighton [Tue, 12 Apr 2022 13:47:55 +0000 (14:47 +0100)]
GAH jump to start of SPI Flash not the offset *in* SPI

2 years agomove flash-first-phase-initialisation to separate function
Luke Kenneth Casson Leighton [Tue, 12 Apr 2022 13:22:33 +0000 (14:22 +0100)]
move flash-first-phase-initialisation to separate function
attempting to execute directly from flash by jumping to it
(after making it run a leeetle bit faster than 100 bytes/sec)

2 years agomake hello_world relocatable with BOOT_INIT_BASE define
Luke Kenneth Casson Leighton [Tue, 12 Apr 2022 13:19:22 +0000 (14:19 +0100)]
make hello_world relocatable with BOOT_INIT_BASE define

2 years agoadd comments on locations where async bridge needs to be added
Luke Kenneth Casson Leighton [Tue, 12 Apr 2022 11:47:28 +0000 (12:47 +0100)]
add comments on locations where async bridge needs to be added

2 years agoeven more speedup possible on QSPI
Luke Kenneth Casson Leighton [Mon, 11 Apr 2022 22:32:27 +0000 (23:32 +0100)]
even more speedup possible on QSPI

2 years agohack offset into boot address as well
Luke Kenneth Casson Leighton [Mon, 11 Apr 2022 22:18:35 +0000 (23:18 +0100)]
hack offset into boot address as well

2 years agohmm go back to mtspr for now, also add explicit loading-offset of 0x600000
Luke Kenneth Casson Leighton [Mon, 11 Apr 2022 21:11:50 +0000 (22:11 +0100)]
hmm go back to mtspr for now, also add explicit loading-offset of 0x600000
like there is in the microwatt-verilator work

2 years agotoo big, shift down to 2MB offset
Luke Kenneth Casson Leighton [Mon, 11 Apr 2022 17:54:32 +0000 (18:54 +0100)]
too big, shift down to 2MB offset

2 years agofix coldboot to boot from return address
Luke Kenneth Casson Leighton [Mon, 11 Apr 2022 17:49:55 +0000 (18:49 +0100)]
fix coldboot to boot from return address
(head.S does mtctr %r3 then bctr)
move SPI offset to 6 mbytes
(make room in future for boot bitstream)
crank versa_ecp5 freq back to 55 mhz so as to re-activate DDR3

2 years agohmm getting flags sorted out on coldboot link
Luke Kenneth Casson Leighton [Mon, 11 Apr 2022 17:11:48 +0000 (18:11 +0100)]
hmm getting flags sorted out on coldboot link

2 years agoannoying, read from wrong offset in SPI FLASH
Luke Kenneth Casson Leighton [Mon, 11 Apr 2022 15:54:16 +0000 (16:54 +0100)]
annoying, read from wrong offset in SPI FLASH

2 years agomake DRAM init conditional on whether it is detected through SYSCON
Luke Kenneth Casson Leighton [Mon, 11 Apr 2022 15:35:26 +0000 (16:35 +0100)]
make DRAM init conditional on whether it is detected through SYSCON

2 years agoput versa_ecp5 below 50 mhz as a bodge-way to stop it trying
Luke Kenneth Casson Leighton [Mon, 11 Apr 2022 15:33:02 +0000 (16:33 +0100)]
put versa_ecp5 below 50 mhz as a bodge-way to stop it trying
to create a DDR3 peripheral.  this then activates placing an SRAM (BRAM)
at 0x0000_0000 of size 0x8000 which can be used for a micro-test of
booting from QSPI.
and 0x8000 SRAM is much easier to simulate in icarus verilog

2 years agoset start to _start in hello_world lds script
Luke Kenneth Casson Leighton [Mon, 11 Apr 2022 15:31:46 +0000 (16:31 +0100)]
set start to _start in hello_world lds script
this causes elf image to get the correct start (execution) address

2 years agosigh dump memory *at* address, not address itself
Luke Kenneth Casson Leighton [Mon, 11 Apr 2022 14:29:06 +0000 (15:29 +0100)]
sigh dump memory *at* address, not address itself
also disable HAS_DRAM check so that copying to BRAM is also fine

2 years agodump start of copied memory
Luke Kenneth Casson Leighton [Mon, 11 Apr 2022 13:38:25 +0000 (14:38 +0100)]
dump start of copied memory

2 years agospeed up QSPI by putting it into way-faster mode
Luke Kenneth Casson Leighton [Mon, 11 Apr 2022 13:19:21 +0000 (14:19 +0100)]
speed up QSPI by putting it into way-faster mode

2 years agoneed to merge in tercel flash code
Luke Kenneth Casson Leighton [Sun, 10 Apr 2022 18:26:04 +0000 (19:26 +0100)]
need to merge in tercel flash code

2 years agoRevert "Wire up missing CRG / DDR3 clock control / reset signals"
Luke Kenneth Casson Leighton [Sun, 10 Apr 2022 17:15:35 +0000 (18:15 +0100)]
Revert "Wire up missing CRG / DDR3 clock control / reset signals"

This reverts commit 19ed0026e91b2dd351fbd2d692fb2c6f45b42622.

2 years agoRevert "Put sysclk2x back under system reset control"
Luke Kenneth Casson Leighton [Sun, 10 Apr 2022 17:15:15 +0000 (18:15 +0100)]
Revert "Put sysclk2x back under system reset control"

This reverts commit 793d05f2ef2e38891a4fb2ffbd6c77631fb86873.

2 years agoattempting to sort out what looks like a stack overflow
Luke Kenneth Casson Leighton [Sun, 10 Apr 2022 16:30:04 +0000 (17:30 +0100)]
attempting to sort out what looks like a stack overflow

2 years agoPut sysclk2x back under system reset control
Raptor Engineering Development Team [Sun, 10 Apr 2022 02:15:35 +0000 (21:15 -0500)]
Put sysclk2x back under system reset control

2 years agoadd QSPI dump back in (smaller one) to check it is working
Luke Kenneth Casson Leighton [Sat, 9 Apr 2022 22:06:09 +0000 (23:06 +0100)]
add QSPI dump back in (smaller one) to check it is working

2 years agoWire up missing CRG / DDR3 clock control / reset signals
Raptor Engineering Development Team [Sat, 9 Apr 2022 20:06:12 +0000 (15:06 -0500)]
Wire up missing CRG / DDR3 clock control / reset signals

2 years agosigh use MEMORY_BASE which is at 0x0000_0000 and coincides with DRAM_BASE
Luke Kenneth Casson Leighton [Sat, 9 Apr 2022 14:21:52 +0000 (15:21 +0100)]
sigh use MEMORY_BASE which is at 0x0000_0000 and coincides with DRAM_BASE

2 years agoshuffle addresses around a bit
Luke Kenneth Casson Leighton [Sat, 9 Apr 2022 13:02:01 +0000 (14:02 +0100)]
shuffle addresses around a bit
* firmware ROM is at 0xff00_0000
* DRAM is at 0x0000_0000
* for no real reason if DRAM is not present at 0x0 an SRAM is added
* set the default coldboot compile-start address at 0xff00_0000

2 years agoadd DRAM offset into SYSCON and jump to DRAM if flash successfully
Luke Kenneth Casson Leighton [Fri, 8 Apr 2022 20:34:08 +0000 (21:34 +0100)]
add DRAM offset into SYSCON and jump to DRAM if flash successfully
returns an offset after copy

2 years agoadd ELF reading to coldboot.c, move spi address to 0xf000_000
Luke Kenneth Casson Leighton [Fri, 8 Apr 2022 20:09:20 +0000 (21:09 +0100)]
add ELF reading to coldboot.c, move spi address to 0xf000_000
and add spi read-offset to Microwatt SYSCON

2 years agoadd read of SYSCON and entry for SPIFlash
Luke Kenneth Casson Leighton [Fri, 8 Apr 2022 17:46:12 +0000 (18:46 +0100)]
add read of SYSCON and entry for SPIFlash

2 years agoup the delay-time on ddr3 reset, put loop around dram init just for fun
Luke Kenneth Casson Leighton [Fri, 8 Apr 2022 14:53:29 +0000 (15:53 +0100)]
up the delay-time on ddr3 reset, put loop around dram init just for fun

2 years agocomment/80-char limit
Luke Kenneth Casson Leighton [Fri, 8 Apr 2022 11:54:05 +0000 (12:54 +0100)]
comment/80-char limit

2 years agoUpdate coldboot DDR3 init firmware to work with latest gram changes
Raptor Engineering Development Team [Thu, 7 Apr 2022 21:36:51 +0000 (16:36 -0500)]
Update coldboot DDR3 init firmware to work with latest gram changes

2 years agoAdd an asm dump with source to the coldboot makefile
Raptor Engineering Development Team [Thu, 7 Apr 2022 21:33:51 +0000 (16:33 -0500)]
Add an asm dump with source to the coldboot makefile

Clean all files, including libgram files, when running
make clean

2 years agoEnable DDR3 using a 50MHz clock on Versa 85
Raptor Engineering Development Team [Thu, 7 Apr 2022 21:33:18 +0000 (16:33 -0500)]
Enable DDR3 using a 50MHz clock on Versa 85

2 years agoMove simulation HyperRAM pins off of DDR3 pins
Raptor Engineering Development Team [Thu, 7 Apr 2022 21:32:53 +0000 (16:32 -0500)]
Move simulation HyperRAM pins off of DDR3 pins

2 years agoFix DRAM simulation commands
Raptor Engineering Development Team [Thu, 7 Apr 2022 21:32:18 +0000 (16:32 -0500)]
Fix DRAM simulation commands

2 years agoadd QSPI support to arty_a7
Luke Kenneth Casson Leighton [Wed, 6 Apr 2022 11:28:03 +0000 (12:28 +0100)]
add QSPI support to arty_a7

2 years agoallow setting individual directions on QSPI dq0-dq3
Luke Kenneth Casson Leighton [Mon, 4 Apr 2022 19:14:10 +0000 (20:14 +0100)]
allow setting individual directions on QSPI dq0-dq3

2 years agowrite out firmware to correct location,
Luke Kenneth Casson Leighton [Mon, 4 Apr 2022 17:14:46 +0000 (18:14 +0100)]
write out firmware to correct location,
adapt to 64/32 bit output

2 years agosigh put firmware.hex qspi file in correct place
Luke Kenneth Casson Leighton [Mon, 4 Apr 2022 17:09:26 +0000 (18:09 +0100)]
sigh put firmware.hex qspi file in correct place

2 years agoincrease power-on-delay for icarus sim to allow reset to occur
Luke Kenneth Casson Leighton [Mon, 4 Apr 2022 17:08:59 +0000 (18:08 +0100)]
increase power-on-delay for icarus sim to allow reset to occur

2 years agore-enable build of firmware in sim
Luke Kenneth Casson Leighton [Mon, 4 Apr 2022 16:25:44 +0000 (17:25 +0100)]
re-enable build of firmware in sim

2 years agodisable ethmac for now, pass firmware.hex to cypress qspi model
Luke Kenneth Casson Leighton [Mon, 4 Apr 2022 16:11:46 +0000 (17:11 +0100)]
disable ethmac for now, pass firmware.hex to cypress qspi model

2 years agoredo start address of firmware so it can be specified -DBOOT_INIT_BASE
Luke Kenneth Casson Leighton [Sun, 3 Apr 2022 10:23:46 +0000 (11:23 +0100)]
redo start address of firmware so it can be specified -DBOOT_INIT_BASE

2 years agoFix SPI device simulation model MISO/MOSI wiring
Raptor Engineering Development Team [Mon, 4 Apr 2022 16:06:51 +0000 (11:06 -0500)]
Fix SPI device simulation model MISO/MOSI wiring

2 years agoAdd 10/100 MAC pins for Versa boards and enable MAC
Raptor Engineering Development Team [Sat, 2 Apr 2022 21:53:56 +0000 (16:53 -0500)]
Add 10/100 MAC pins for Versa boards and enable MAC

Tested to not interfere with main SoC in simulation,
not tested further at this point.

2 years agoreduce number of params obtained on QSPI for icarus sim
Luke Kenneth Casson Leighton [Thu, 31 Mar 2022 13:42:53 +0000 (14:42 +0100)]
reduce number of params obtained on QSPI for icarus sim

2 years agogot icarus verilog model of QSPI working and it returns the same FFFFFFF
Luke Kenneth Casson Leighton [Thu, 31 Mar 2022 13:31:08 +0000 (14:31 +0100)]
got icarus verilog model of QSPI working and it returns the same FFFFFFF

2 years agowhitespace cleanup
Luke Kenneth Casson Leighton [Thu, 31 Mar 2022 09:02:39 +0000 (10:02 +0100)]
whitespace cleanup

2 years agoFix Tercel QSPI master connections
Raptor Engineering Development Team [Thu, 31 Mar 2022 07:39:31 +0000 (02:39 -0500)]
Fix Tercel QSPI master connections

Tested to work on Raptor Versa 85 custom board
in both word and byte mode.

2 years agoremove {err} feature from Tercel
Luke Kenneth Casson Leighton [Thu, 31 Mar 2022 01:31:37 +0000 (02:31 +0100)]
remove {err} feature from Tercel

2 years agoadd err wishbone feature to Tercel
Luke Kenneth Casson Leighton [Tue, 29 Mar 2022 19:43:58 +0000 (20:43 +0100)]
add err wishbone feature to Tercel

2 years agoadd config-dump from SPI
Luke Kenneth Casson Leighton [Tue, 29 Mar 2022 19:43:44 +0000 (20:43 +0100)]
add config-dump from SPI

2 years agoremove clk from spi_flash,
Luke Kenneth Casson Leighton [Tue, 29 Mar 2022 19:40:27 +0000 (20:40 +0100)]
remove clk from spi_flash,
change cs_n to cs,
de-bork WB access with stall=cyc&~ack thing

2 years agoadd qspi module to arty_a7
Luke Kenneth Casson Leighton [Tue, 29 Mar 2022 12:45:51 +0000 (13:45 +0100)]
add qspi module to arty_a7

2 years agoquick-and-dirty QSPI read test
Luke Kenneth Casson Leighton [Tue, 29 Mar 2022 12:45:32 +0000 (13:45 +0100)]
quick-and-dirty QSPI read test

2 years agouse nmigen_boards naming conventions for SPIFlash
Luke Kenneth Casson Leighton [Tue, 29 Mar 2022 12:32:35 +0000 (13:32 +0100)]
use nmigen_boards naming conventions for SPIFlash

2 years agoupdate comments, link/setup of peripherals
Luke Kenneth Casson Leighton [Tue, 29 Mar 2022 11:52:11 +0000 (12:52 +0100)]
update comments, link/setup of peripherals
(all done manually at the moment, TODO a dev-env-setup)

2 years agoadd TODO comments about using platform.add_resources
Luke Kenneth Casson Leighton [Tue, 29 Mar 2022 11:46:57 +0000 (12:46 +0100)]
add TODO comments about using platform.add_resources

2 years agowhitespace cleanup, 80 char limit
Luke Kenneth Casson Leighton [Tue, 29 Mar 2022 11:00:54 +0000 (12:00 +0100)]
whitespace cleanup, 80 char limit

2 years agoadd patch for n25q to fix model using fork/join, should be begin/end
Luke Kenneth Casson Leighton [Tue, 29 Mar 2022 10:58:32 +0000 (11:58 +0100)]
add patch for n25q to fix model using fork/join, should be begin/end

2 years agoAdd initial integration for OpenCores 10/100 Ethernet MAC
Raptor Engineering Development Team [Tue, 29 Mar 2022 01:11:43 +0000 (20:11 -0500)]
Add initial integration for OpenCores 10/100 Ethernet MAC

2 years agoFix instructions in comment
Raptor Engineering Development Team [Mon, 28 Mar 2022 15:58:23 +0000 (10:58 -0500)]
Fix instructions in comment

2 years agoquick memory test increasing by power-2 each time shows all 32 mbytes of
Luke Kenneth Casson Leighton [Mon, 28 Mar 2022 14:16:45 +0000 (15:16 +0100)]
quick memory test increasing by power-2 each time shows all 32 mbytes of
hyperram ICs are accessible

2 years agoset reset from ResetSignal not straight to 1 for HyperRAM
Luke Kenneth Casson Leighton [Sun, 27 Mar 2022 15:32:15 +0000 (16:32 +0100)]
set reset from ResetSignal not straight to 1 for HyperRAM
put correct IOPad names into HyperRAMResource for arty a7

2 years agotry latency of 7 for winbond hyperram
Luke Kenneth Casson Leighton [Sun, 27 Mar 2022 12:21:48 +0000 (13:21 +0100)]
try latency of 7 for winbond hyperram

2 years agoadd link to Winbond HyperRAM model
Luke Kenneth Casson Leighton [Sun, 27 Mar 2022 12:21:25 +0000 (13:21 +0100)]
add link to Winbond HyperRAM model

2 years agoset upper CSns on HyperRAM to zero and set reset_n HI
Luke Kenneth Casson Leighton [Sun, 27 Mar 2022 11:07:50 +0000 (12:07 +0100)]
set upper CSns on HyperRAM to zero and set reset_n HI
fix CSn pin-pad names