[PATCH] Add support for iTCOv4 (Sunrise Point-LP)

['Mathieu Tetreault' via EFI Boot Guard]

Signed-off-by: Mathieu Tetreault <math...@rmds.ca>
---
 drivers/watchdog/itco.c | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/drivers/watchdog/itco.c b/drivers/watchdog/itco.c
index 9252014..c20b1b6 100644
--- a/drivers/watchdog/itco.c
+++ b/drivers/watchdog/itco.c
@@ -40,6 +40,7 @@ enum iTCO_chipsets {
        ITCO_INTEL_WBG,
        ITCO_INTEL_EHL,
        ITCO_INTEL_TLH,
+       ITCO_INTEL_SUNRISE_LP,
 };
 
 enum iTCO_versions {
@@ -92,7 +93,12 @@ static const iTCO_regs iTCO_version_regs[] = {
        },
     [ITCO_V4] =
        {
-           /* Not implemented yet */
+           .pmc_base_reg = 0x10,
+           .pmc_reg = 0x1008,
+           .pmc_no_reboot_mask = (1 << 4),
+           .pmc_base_addr_mask = 0xfffffe00,
+               .pm_base_reg = 0x400,
+           .pm_base_addr_mask = 0x0000ff80,
        },
     [ITCO_V5] =
        {
@@ -163,6 +169,12 @@ static const iTCO_info iTCO_chipset_info[] = {
            .pci_id = 0x43a3,
            .itco_version = ITCO_V6,
        },
+    [ITCO_INTEL_SUNRISE_LP] =
+       {
+           .name = L"Sunrise Point-LP",
+           .pci_id = 0x9d23,
+           .itco_version = ITCO_V4,
+       },
 };
 
 static BOOLEAN itco_supported(UINT16 pci_device_id, UINT8 *index)
@@ -320,6 +332,7 @@ static EFI_STATUS init(EFI_PCI_IO *pci_io, UINT16 
pci_vendor_id,
                update_no_reboot_flag_cnt(tco_base);
                break;
        case ITCO_V5:
+       case ITCO_V4:
                update_no_reboot_flag_apl(itco);
                break;
        case ITCO_V3:
-- 
2.20.1

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