diff options
Diffstat (limited to 'src/soc/intel/quark/acpi.c')
| -rw-r--r-- | src/soc/intel/quark/acpi.c | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/src/soc/intel/quark/acpi.c b/src/soc/intel/quark/acpi.c index f43a74c6cb..90adc344d2 100644 --- a/src/soc/intel/quark/acpi.c +++ b/src/soc/intel/quark/acpi.c @@ -16,6 +16,7 @@ */ #include <soc/acpi.h> +#include <soc/ramstage.h> unsigned long acpi_fill_madt(unsigned long current) { @@ -30,4 +31,75 @@ unsigned long acpi_fill_mcfg(unsigned long current) void acpi_fill_in_fadt(acpi_fadt_t *fadt) { + struct device *dev = dev_find_slot(0, + PCI_DEVFN(PCI_DEVICE_NUMBER_QNC_LPC, + PCI_FUNCTION_NUMBER_QNC_LPC)); + uint32_t gpe0_base = pci_read_config32(dev, R_QNC_LPC_GPE0BLK) + & B_QNC_LPC_GPE0BLK_MASK; + uint32_t pmbase = pci_read_config32(dev, R_QNC_LPC_PM1BLK) + & B_QNC_LPC_PM1BLK_MASK; + + fadt->flags = ACPI_FADT_RESET_REGISTER | ACPI_FADT_PLATFORM_CLOCK; + + /* PM1 Status: ACPI 4.8.3.1.1 */ + fadt->pm1a_evt_blk = pmbase + R_QNC_PM1BLK_PM1S; + fadt->pm1_evt_len = 2; + + fadt->x_pm1a_evt_blk.space_id = ACPI_ADDRESS_SPACE_IO; + fadt->x_pm1a_evt_blk.bit_width = fadt->pm1_evt_len * 8; + fadt->x_pm1a_evt_blk.bit_offset = 0; + fadt->reset_reg.access_size = ACPI_ACCESS_SIZE_WORD_ACCESS; + fadt->x_pm1a_evt_blk.addrl = pmbase + R_QNC_PM1BLK_PM1S; + fadt->x_pm1a_evt_blk.addrh = 0x0; + + /* PM1 Control: ACPI 4.8.3.2.1 */ + fadt->pm1a_cnt_blk = pmbase + R_QNC_PM1BLK_PM1C; + fadt->pm1_cnt_len = 2; + + fadt->x_pm1a_cnt_blk.space_id = ACPI_ADDRESS_SPACE_IO; + fadt->x_pm1a_cnt_blk.bit_width = fadt->pm1_cnt_len * 8; + fadt->x_pm1a_cnt_blk.bit_offset = 0; + fadt->reset_reg.access_size = ACPI_ACCESS_SIZE_WORD_ACCESS; + fadt->x_pm1a_cnt_blk.addrl = fadt->pm1a_cnt_blk; + fadt->x_pm1a_cnt_blk.addrh = 0x0; + + /* PM Timer: ACPI 4.8.3.3 */ + fadt->pm_tmr_blk = pmbase + R_QNC_PM1BLK_PM1T; + fadt->pm_tmr_len = 4; + + fadt->x_pm_tmr_blk.space_id = ACPI_ADDRESS_SPACE_IO; + fadt->x_pm_tmr_blk.bit_width = fadt->pm_tmr_len * 8; + fadt->x_pm_tmr_blk.bit_offset = 0; + fadt->reset_reg.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS; + fadt->x_pm_tmr_blk.addrl = fadt->pm_tmr_blk; + fadt->x_pm_tmr_blk.addrh = 0x0; + + /* Reset Register: ACPI 4.8.3.6, 5.2.3.2 */ + fadt->reset_reg.space_id = ACPI_ADDRESS_SPACE_IO; + fadt->reset_reg.bit_width = 8; + fadt->reset_reg.bit_offset = 0; + fadt->reset_reg.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS; + fadt->reset_reg.addrl = 0xcf9; + fadt->reset_reg.addrh = 0; + + /* Soft/Warm Reset */ + fadt->reset_value = 6; + + /* General-Purpose Event 0 Registers: ACPI 4.8.4.1 */ + fadt->gpe0_blk = gpe0_base; + fadt->gpe0_blk_len = 4 * 2; + + fadt->x_gpe0_blk.space_id = ACPI_ADDRESS_SPACE_IO; + fadt->x_gpe0_blk.bit_width = fadt->gpe0_blk_len * 8; + fadt->x_gpe0_blk.bit_offset = 0; + fadt->reset_reg.access_size = ACPI_ACCESS_SIZE_DWORD_ACCESS; + fadt->x_gpe0_blk.addrl = fadt->gpe0_blk; + fadt->x_gpe0_blk.addrh = 0; + + /* Display the base registers */ + printk(BIOS_DEBUG, "FADT:\n"); + printk(BIOS_DEBUG, " 0x%08x: GPE0_BASE\n", gpe0_base); + printk(BIOS_DEBUG, " 0x%08x: PMBASE\n", pmbase); + printk(BIOS_DEBUG, " 0x%08x: RESET\n", fadt->reset_reg.addrl); + } |