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ecp5: Add parsing of SYSCONFIG line in LPF

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Signed-off-by: David Shah <dave@ds0.me>
This commit is contained in:
David Shah 2020-07-12 12:53:16 +01:00
parent 3cafb16aa6
commit 6016e54d6c
1 changed files with 20 additions and 1 deletions
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21
ecp5/lpf.cc
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@ -23,6 +23,14 @@
NEXTPNR_NAMESPACE_BEGIN
static const std::unordered_set<std::string> sysconfig_keys = {
"SLAVE_SPI_PORT", "MASTER_SPI_PORT", "SLAVE_PARALLEL_PORT",
"BACKGROUND_RECONFIG", "DONE_EX", "DONE_OD",
"DONE_PULL", "MCCLK_FREQ", "TRANSFR",
"CONFIG_IOVOLTAGE", "CONFIG_SECURE", "WAKE_UP",
"COMPRESS_CONFIG", "CONFIG_MODE", "INBUF",
};
bool Arch::applyLPF(std::string filename, std::istream &in)
{
auto isempty = [](const std::string &str) {
@ -66,10 +74,21 @@ bool Arch::applyLPF(std::string filename, std::istream &in)
words.push_back(tmp);
if (words.size() >= 0) {
std::string verb = words.at(0);
if (verb == "BLOCK" || verb == "SYSCONFIG") {
if (verb == "BLOCK") {
if (words.size() != 2 || (words.at(1) != "ASYNCPATHS" && words.at(1) != "RESETPATHS"))
log_warning(" ignoring unsupported LPF command '%s' (on line %d)\n", command.c_str(),
lineno);
} else if (verb == "SYSCONFIG") {
for (size_t i = 1; i < words.size(); i++) {
std::string setting = words.at(i);
size_t eqpos = setting.find('=');
if (eqpos == std::string::npos)
log_error("expected syntax 'SYSCONFIG <attr>=<value>...' (on line %d)\n", lineno);
std::string key = setting.substr(0, eqpos), value = setting.substr(eqpos + 1);
if (!sysconfig_keys.count(key))
log_error("unexpected SYSCONFIG key '%s' (on line %d)\n", key.c_str(), lineno);
settings[id("arch.sysconfig." + key)] = value;
}
} else if (verb == "FREQUENCY") {
if (words.size() < 2)
log_error("expected object type after FREQUENCY (on line %d)\n", lineno);