diff options
| -rw-r--r-- | src/southbridge/amd/pi/hudson/Kconfig | 6 | ||||
| -rw-r--r-- | src/southbridge/amd/pi/hudson/lpc.c | 7 |
2 files changed, 13 insertions, 0 deletions
diff --git a/src/southbridge/amd/pi/hudson/Kconfig b/src/southbridge/amd/pi/hudson/Kconfig index bb58722a21..233260f026 100644 --- a/src/southbridge/amd/pi/hudson/Kconfig +++ b/src/southbridge/amd/pi/hudson/Kconfig @@ -213,6 +213,12 @@ config AMDFW_OUTSIDE_CBFS option to manually attach the generated amdfw.rom at an offset of 0x20000 from the bottom of the coreboot ROM image. +config SERIRQ_CONTINUOUS_MODE + bool + default n + help + Set this option to y for serial IRQ in continuous mode. + Otherwise it is in quiet mode. endif config HUDSON_UART diff --git a/src/southbridge/amd/pi/hudson/lpc.c b/src/southbridge/amd/pi/hudson/lpc.c index 1dacfd0dbd..38c57331b2 100644 --- a/src/southbridge/amd/pi/hudson/lpc.c +++ b/src/southbridge/amd/pi/hudson/lpc.c @@ -83,6 +83,13 @@ static void lpc_init(device_t dev) /* Initialize i8254 timers */ setup_i8254 (); + + /* Setup SERIRQ, enable continuous mode */ + byte = (BIT(4) | BIT(7)); + if (!IS_ENABLED(CONFIG_SERIRQ_CONTINUOUS_MODE)) + byte |= BIT(6); + + pm_write8(PM_SERIRQ_CONF, byte); } static void hudson_lpc_read_resources(device_t dev) |