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atsamd: Add support CANbus on ATSAME5x chips

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Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor
2022-09-30 18:03:21 -04:00
parent 0a9becc391
commit 4b77f29c1b
8 changed files with 365 additions and 13 deletions
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8
src/atsamd/samd51_clock.c
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@@ -39,11 +39,13 @@ route_pclock(uint32_t pclk_id, uint32_t clkgen_id)
// Enable a peripheral clock and power to that peripheral
void
enable_pclock(uint32_t pclk_id, uint32_t pm_id)
enable_pclock(uint32_t pclk_id, int32_t pm_id)
{
route_pclock(pclk_id, CLKGEN_48M);
uint32_t pm_port = pm_id / 32, pm_bit = 1 << (pm_id % 32);
(&MCLK->APBAMASK.reg)[pm_port] |= pm_bit;
if (pm_id >= 0) {
uint32_t pm_port = pm_id / 32, pm_bit = 1 << (pm_id % 32);
(&MCLK->APBAMASK.reg)[pm_port] |= pm_bit;
}
}
// Return the frequency of the given peripheral clock