diff options
Diffstat (limited to 'src/soc/intel/alderlake/espi.c')
| -rw-r--r-- | src/soc/intel/alderlake/espi.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/soc/intel/alderlake/espi.c b/src/soc/intel/alderlake/espi.c index bad4ab9143..8a4007cdcb 100644 --- a/src/soc/intel/alderlake/espi.c +++ b/src/soc/intel/alderlake/espi.c @@ -9,10 +9,14 @@ #include <device/pci.h> #include <pc80/isa-dma.h> #include <pc80/i8259.h> +#include <arch/ioapic.h> +#include <intelblocks/itss.h> #include <intelblocks/lpc_lib.h> #include <intelblocks/pcr.h> #include <soc/espi.h> #include <soc/iomap.h> +#include <soc/irq.h> +#include <soc/pci_devs.h> #include <soc/pcr_ids.h> #include <soc/soc_chip.h> @@ -49,3 +53,27 @@ void soc_setup_dmi_pcr_io_dec(uint32_t *gen_io_dec) pcr_write32(PID_DMI, PCR_DMI_LPCLGIR3, gen_io_dec[2]); pcr_write32(PID_DMI, PCR_DMI_LPCLGIR4, gen_io_dec[3]); } + +#if ENV_RAMSTAGE +void lpc_soc_init(struct device *dev) +{ + /* Legacy initialization */ + isa_dma_init(); + lpc_pch_misc_init(); + + /* Enable CLKRUN_EN for power gating ESPI */ + lpc_enable_pci_clk_cntl(); + + /* Set ESPI Serial IRQ mode */ + if (CONFIG(SERIRQ_CONTINUOUS_MODE)) + lpc_set_serirq_mode(SERIRQ_CONTINUOUS); + else + lpc_set_serirq_mode(SERIRQ_QUIET); + + /* Interrupt configuration */ + lpc_pch_enable_ioapic(); + lpc_pch_pirq_init(); + setup_i8259(); + i8259_configure_irq_trigger(9, 1); +} +#endif |