util/intelp2m: add Meteor Lake support

Enables parsing Meteor Lake inteltool output into gpio.h pad macros.

Change-Id: Iaebd51d587507e68c6f263b92dc61cb6c0411bf8
Signed-off-by: Filip Lewiński <filip.lewinski@3mdeb.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/81916
Reviewed-by: Maxim <max.senia.poliak@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michał Kopeć <michal.kopec@3mdeb.com>

2 files changed, 140 insertions, 0 deletions

diff --git a/util/intelp2m/platforms/mtl/macro.go b/util/intelp2m/platforms/mtl/macro.go
new file mode 100644
index 0000000000..512dd719e3
--- /dev/null
+++ b/util/intelp2m/platforms/mtl/macro.go
@@ -0,0 +1,117 @@
+package mtl
+
+import (
+	"strings"
+	"fmt"
+
+	"review.coreboot.org/coreboot.git/util/intelp2m/platforms/common"
+	"review.coreboot.org/coreboot.git/util/intelp2m/platforms/snr"
+	"review.coreboot.org/coreboot.git/util/intelp2m/platforms/cnl"
+	"review.coreboot.org/coreboot.git/util/intelp2m/config"
+	"review.coreboot.org/coreboot.git/util/intelp2m/fields"
+)
+
+const (
+	PAD_CFG_DW0_RO_FIELDS = (0x1 << 27) | (0x1 << 24) | (0x3 << 21) | (0xf << 16) | 0xfc
+	PAD_CFG_DW1_RO_FIELDS = 0xfdffc3ff
+)
+
+const (
+	PAD_CFG_DW0 = common.PAD_CFG_DW0
+	PAD_CFG_DW1 = common.PAD_CFG_DW1
+	MAX_DW_NUM  = common.MAX_DW_NUM
+)
+
+type InheritanceMacro interface {
+	Pull()
+	GpiMacroAdd()
+	GpoMacroAdd()
+	NativeFunctionMacroAdd()
+	NoConnMacroAdd()
+}
+
+type PlatformSpecific struct {
+	InheritanceMacro
+}
+
+// RemmapRstSrc - remmap Pad Reset Source Config
+func (PlatformSpecific) RemmapRstSrc() {
+	macro := common.GetMacro()
+	if config.TemplateGet() != config.TempInteltool {
+		// Use reset source remapping only if the input file is inteltool.log dump
+		return
+	}
+	if strings.Contains(macro.PadIdGet(), "GPD") {
+		// See reset map for the MeteorLake GPD group at
+                // https://github.com/coreboot/coreboot/blob/master/src/soc/intel/meteorlake/gpio.c#L10
+                // remmap is not required because it is the same as common.
+		return
+	}
+
+	dw0 := macro.Register(PAD_CFG_DW0)
+	var remapping = map[uint8]uint32{
+		0: common.RST_RSMRST << common.PadRstCfgShift,
+		1: common.RST_DEEP   << common.PadRstCfgShift,
+		2: common.RST_PLTRST << common.PadRstCfgShift,
+		3: common.RST_PWROK  << common.PadRstCfgShift,
+	}
+	resetsrc, valid := remapping[dw0.GetResetConfig()]
+	if valid {
+		// dw0.SetResetConfig(resetsrc)
+		ResetConfigFieldVal := (dw0.ValueGet() & 0x3fffffff) | remapping[dw0.GetResetConfig()]
+		dw0.ValueSet(ResetConfigFieldVal)
+	} else {
+		fmt.Println("Invalid Pad Reset Config [ 0x", resetsrc ," ] for ", macro.PadIdGet())
+	}
+	dw0.CntrMaskFieldsClear(common.PadRstCfgMask)
+}
+
+// Adds The Pad Termination (TERM) parameter from PAD_CFG_DW1 to the macro
+// as a new argument
+func (platform PlatformSpecific) Pull() {
+	platform.InheritanceMacro.Pull()
+}
+
+// Adds PAD_CFG_GPI macro with arguments
+func (platform PlatformSpecific) GpiMacroAdd() {
+	platform.InheritanceMacro.GpiMacroAdd()
+}
+
+// Adds PAD_CFG_GPO macro with arguments
+func (platform PlatformSpecific) GpoMacroAdd() {
+	platform.InheritanceMacro.GpoMacroAdd()
+}
+
+// Adds PAD_CFG_NF macro with arguments
+func (platform PlatformSpecific) NativeFunctionMacroAdd() {
+	platform.InheritanceMacro.NativeFunctionMacroAdd()
+}
+
+// Adds PAD_NC macro
+func (platform PlatformSpecific) NoConnMacroAdd() {
+	platform.InheritanceMacro.NoConnMacroAdd()
+}
+
+
+// GenMacro - generate pad macro
+// dw0 : DW0 config register value
+// dw1 : DW1 config register value
+// return: string of macro
+//         error
+func (PlatformSpecific) GenMacro(id string, dw0 uint32, dw1 uint32, ownership uint8) string {
+	macro := common.GetInstanceMacro(
+		PlatformSpecific{
+			InheritanceMacro: cnl.PlatformSpecific{
+				InheritanceMacro: snr.PlatformSpecific{},
+			},
+		},
+		fields.InterfaceGet(),
+	)
+	macro.Clear()
+	macro.Register(PAD_CFG_DW0).CntrMaskFieldsClear(common.AllFields)
+	macro.Register(PAD_CFG_DW1).CntrMaskFieldsClear(common.AllFields)
+	macro.PadIdSet(id).SetPadOwnership(ownership)
+	macro.Register(PAD_CFG_DW0).ValueSet(dw0).ReadOnlyFieldsSet(PAD_CFG_DW0_RO_FIELDS)
+	macro.Register(PAD_CFG_DW1).ValueSet(dw1).ReadOnlyFieldsSet(PAD_CFG_DW1_RO_FIELDS)
+	return macro.Generate()
+}
diff --git a/util/intelp2m/platforms/mtl/template.go b/util/intelp2m/platforms/mtl/template.go
new file mode 100644
index 0000000000..76a65f3f18
--- /dev/null
+++ b/util/intelp2m/platforms/mtl/template.go
@@ -0,0 +1,23 @@
+package mtl
+
+import "review.coreboot.org/coreboot.git/util/intelp2m/platforms/common"
+
+// GroupNameExtract - This function extracts the group ID, if it exists in a row
+// line      : string from the configuration file
+// return
+//     bool   : true if the string contains a group identifier
+//     string : group identifier
+func (PlatformSpecific) GroupNameExtract(line string) (bool, string) {
+	return common.KeywordsCheck(line,
+		"GPP_V", "GPP_C", "GPP_A", "GPP_E", "GPP_H", "GPP_F", "GPP_S",
+		"GPP_B", "GPP_D", "GPD", "VGPIO_USB", "VGPIO_PCIE")
+
+}
+
+// KeywordCheck - This function is used to filter parsed lines of the configuration file and
+//                returns true if the keyword is contained in the line.
+// line      : string from the configuration file
+func (PlatformSpecific) KeywordCheck(line string) bool {
+	isIncluded, _ := common.KeywordsCheck(line, "GPP_", "GPD", "VGPIO")
+	return isIncluded
+}