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gowin: Add support for GW2A series chips

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* Limited to Tangprimer 20k or GW2A-LV18PG256C8/I7 chip.
* Clock lines are disabled.

Signed-off-by: YRabbit <rabbit@yrabbit.cyou>
This commit is contained in:
YRabbit 2023-06-17 20:31:04 +10:00 committed by myrtle
parent cbd6496d35
commit 1260f2f7d7
2 changed files with 23 additions and 9 deletions
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2
gowin/CMakeLists.txt
View File

@ -1,7 +1,7 @@
cmake_minimum_required(VERSION 3.5)
project(chipdb-gowin NONE)
set(ALL_GOWIN_DEVICES GW1N-1 GW1NZ-1 GW1N-4 GW1N-9 GW1N-9C GW1NS-2 GW1NS-4)
set(ALL_GOWIN_DEVICES GW1N-1 GW1NZ-1 GW1N-4 GW1N-9 GW1N-9C GW1NS-2 GW1NS-4 GW2A-18)
set(GOWIN_DEVICES ${ALL_GOWIN_DEVICES} CACHE STRING
"Include support for these Gowin devices (available: ${ALL_GOWIN_DEVICES})")
message(STATUS "Enabled Gowin devices: ${GOWIN_DEVICES}")

30
gowin/main.cc
View File

@ -66,7 +66,9 @@ std::unique_ptr<Context> GowinCommandHandler::createContext(dict<std::string, Pr
std::regex devicere = std::regex("GW1N([SZ]?)[A-Z]*-(LV|UV|UX)([0-9])(C?).*");
std::smatch match;
std::string device = vm["device"].as<std::string>();
if (!std::regex_match(device, match, devicere)) {
bool GW2 = device == "GW2A-LV18PG256C8/I7";
if (!GW2 && !std::regex_match(device, match, devicere)) {
log_error("Invalid device %s\n", device.c_str());
}
ArchArgs chipArgs;
@ -74,14 +76,22 @@ std::unique_ptr<Context> GowinCommandHandler::createContext(dict<std::string, Pr
if (vm.count("family")) {
chipArgs.family = vm["family"].as<std::string>();
} else {
char buf[36];
// GW1N and GW1NR variants share the same database.
// Most Gowin devices are a System in Package with some SDRAM wirebonded to a GPIO bank.
// However, it appears that the S series with embedded ARM core are unique silicon.
snprintf(buf, 36, "GW1N%s-%s", match[1].str().c_str(), match[3].str().c_str());
chipArgs.family = buf;
if (!GW2) {
char buf[36];
// GW1N and GW1NR variants share the same database.
// Most Gowin devices are a System in Package with some SDRAM wirebonded to a GPIO bank.
// However, it appears that the S series with embedded ARM core are unique silicon.
snprintf(buf, 36, "GW1N%s-%s", match[1].str().c_str(), match[3].str().c_str());
chipArgs.family = buf;
} else {
chipArgs.family = "GW2A-18";
}
}
if (!GW2) {
chipArgs.partnumber = match[0];
} else {
chipArgs.partnumber = device;
}
chipArgs.partnumber = match[0];
auto ctx = std::unique_ptr<Context>(new Context(chipArgs));
// routing options
@ -93,6 +103,10 @@ std::unique_ptr<Context> GowinCommandHandler::createContext(dict<std::string, Pr
if (vm.count("enable-auto-longwires")) {
ctx->settings[ctx->id("arch.enable-auto-longwires")] = 1;
}
// XXX disable clock lines for now
if (GW2) {
ctx->settings[ctx->id("arch.enable-globals")] = 0;
}
return ctx;
}