diff options
Diffstat (limited to 'src/soc/intel/common/block/lpc/lpc_lib.c')
| -rw-r--r-- | src/soc/intel/common/block/lpc/lpc_lib.c | 22 |
1 files changed, 18 insertions, 4 deletions
diff --git a/src/soc/intel/common/block/lpc/lpc_lib.c b/src/soc/intel/common/block/lpc/lpc_lib.c index 28c435cce6..242d7d91c9 100644 --- a/src/soc/intel/common/block/lpc/lpc_lib.c +++ b/src/soc/intel/common/block/lpc/lpc_lib.c @@ -9,10 +9,12 @@ #include <device/pci_ops.h> #include <intelblocks/itss.h> #include <intelblocks/lpc_lib.h> +#include <intelblocks/pcr.h> #include <lib.h> #include "lpc_def.h" #include <soc/irq.h> #include <soc/pci_devs.h> +#include <soc/pcr_ids.h> uint16_t lpc_enable_fixed_io_ranges(uint16_t io_enables) { @@ -21,6 +23,8 @@ uint16_t lpc_enable_fixed_io_ranges(uint16_t io_enables) reg_io_enables = pci_read_config16(PCH_DEV_LPC, LPC_IO_ENABLES); io_enables |= reg_io_enables; pci_write_config16(PCH_DEV_LPC, LPC_IO_ENABLES, io_enables); + if (CONFIG(SOC_INTEL_COMMON_BLOCK_LPC_MIRROR_TO_DMI)) + pcr_write16(PID_DMI, PCR_DMI_LPCIOE, io_enables); return io_enables; } @@ -37,6 +41,8 @@ uint16_t lpc_set_fixed_io_ranges(uint16_t io_ranges, uint16_t mask) reg_io_ranges = lpc_get_fixed_io_decode() & ~mask; io_ranges |= reg_io_ranges & mask; pci_write_config16(PCH_DEV_LPC, LPC_IO_DECODE, io_ranges); + if (CONFIG(SOC_INTEL_COMMON_BLOCK_LPC_MIRROR_TO_DMI)) + pcr_write16(PID_DMI, PCR_DMI_LPCIOD, io_ranges); return io_ranges; } @@ -105,6 +111,8 @@ void lpc_open_pmio_window(uint16_t base, uint16_t size) lgir_reg_offset = LPC_GENERIC_IO_RANGE(lgir_reg_num); pci_write_config32(PCH_DEV_LPC, lgir_reg_offset, lgir); + if (CONFIG(SOC_INTEL_COMMON_BLOCK_LPC_MIRROR_TO_DMI)) + pcr_write32(PID_DMI, PCR_DMI_LPCLGIR1 + lgir_reg_num * 4, lgir); printk(BIOS_DEBUG, "LPC: Opened IO window LGIR%d: base %llx size %x\n", @@ -138,6 +146,8 @@ void lpc_open_mmio_window(uintptr_t base, size_t size) lgmr = (base & LPC_LGMR_ADDR_MASK) | LPC_LGMR_EN; pci_write_config32(PCH_DEV_LPC, LPC_GENERIC_MEM_RANGE, lgmr); + if (CONFIG(SOC_INTEL_COMMON_BLOCK_LPC_MIRROR_TO_DMI)) + pcr_write32(PID_DMI, PCR_DMI_LPCGMR, lgmr); } /* @@ -214,15 +224,17 @@ void lpc_io_setup_comm_a_b(void) /* ComA Range 3F8h-3FFh [2:0] */ uint16_t com_ranges = LPC_IOD_COMA_RANGE; uint16_t com_enable = LPC_IOE_COMA_EN; + uint16_t com_mask = LPC_IOD_COMA_RANGE_MASK; /* ComB Range 2F8h-2FFh [6:4] */ if (CONFIG(SOC_INTEL_COMMON_BLOCK_LPC_COMB_ENABLE)) { com_ranges |= LPC_IOD_COMB_RANGE; com_enable |= LPC_IOE_COMB_EN; + com_mask |= LPC_IOD_COMB_RANGE_MASK; } /* Setup I/O Decode Range Register for LPC */ - pci_write_config16(PCH_DEV_LPC, LPC_IO_DECODE, com_ranges); + lpc_set_fixed_io_ranges(com_ranges, com_mask); /* Enable ComA and ComB Port */ lpc_enable_fixed_io_ranges(com_enable); } @@ -233,9 +245,11 @@ static void lpc_set_gen_decode_range( size_t i; /* Set in PCI generic decode range registers */ - for (i = 0; i < LPC_NUM_GENERIC_IO_RANGES; i++) - pci_write_config32(PCH_DEV_LPC, LPC_GENERIC_IO_RANGE(i), - gen_io_dec[i]); + for (i = 0; i < LPC_NUM_GENERIC_IO_RANGES; i++) { + pci_write_config32(PCH_DEV_LPC, LPC_GENERIC_IO_RANGE(i), gen_io_dec[i]); + if (CONFIG(SOC_INTEL_COMMON_BLOCK_LPC_MIRROR_TO_DMI)) + pcr_write32(PID_DMI, PCR_DMI_LPCLGIR1 + i * 4, gen_io_dec[i]); + } } void pch_enable_lpc(void) |