Bug 304

Summary: Define minimum viable interface set for 180nm ASIC
Product: Libre-SOC's first SoC Reporter: Luke Kenneth Casson Leighton <lkcl>
Component: Source CodeAssignee: Luke Kenneth Casson Leighton <lkcl>
Status: CONFIRMED ---    
Severity: enhancement CC: libre-soc-bugs
Priority: ---    
Version: unspecified   
Hardware: PC   
OS: Linux   
See Also: https://bugs.libre-soc.org/show_bug.cgi?id=490
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Description Luke Kenneth Casson Leighton 2020-05-08 12:15:06 BST
define and document, at https://libre-soc.org/180nm_Oct2020/interfaces/
a set of interfaces for a minimum viable 180nm ASIC
Comment 1 Yehowshua 2020-05-08 15:36:36 BST
Oh, my bad I'm just now seeing this.

Relea
Comment 3 Luke Kenneth Casson Leighton 2020-05-12 13:12:39 BST
*** Bug 303 has been marked as a duplicate of this bug. ***
Comment 4 Luke Kenneth Casson Leighton 2020-05-12 13:13:06 BST
yehowshua i added a stub/starting-point ls180

https://git.libre-soc.org/?p=pinmux.git;a=blob;f=src/spec/ls180.py;h=77c5f1f7f7923cb8292499bac189ff1ce8f3b6ff;hb=aca6d68a6159136fe1f36c6430e2ffd07da13e8c

also added a stub / dummy LPC function:
https://git.libre-soc.org/?p=pinmux.git;a=blob;f=src/spec/pinfunctions.py;h=e46be8d114f00bbf571092c4e7a9ec5ece39d04b;hb=aca6d68a6159136fe1f36c6430e2ffd07da13e8c#l52

it will need its pin naming correcting, and also in ls180.py everything
including LPC moving to a single column.

we need to move quickly on this because Rudi is waiting for us
to communicate back to him the required peripheral set, and he
is experienced enough to know that we are well beyond the industry
standard time for making these decisions.
Comment 5 Yehowshua 2020-05-12 13:14:24 BST
OK. I'll try and have it finished by Thursday afternoon.
Comment 6 Luke Kenneth Casson Leighton 2020-05-20 23:14:26 BST
conversation notes from Tim (Raptor Engineering)

priority:

* 2x SPI master
* 4x I2C master
* 2x UART
* 4x LPC master
* EINT* Serialsed IRQ (LPC, from PCIe) - 15 or so IRQs, these are PC>PCIe>OpenPower mappings

Quad SPI raptorengineering
LPC bridge github raptorengineering
~