util: Import autoport with Haswell patches

This is a copy of coreboot's autoport utility, with a patch applied to support Haswell/Lynx Point platforms. That patch is currently in review on coreboot's Gerrit. https://review.coreboot.org/c/coreboot/+/30890 Signed-off-by: Nicholas Chin <nic.c3.14@gmail.com>
2026-07-21 19:26:22 +02:00 · 2024-03-18 10:45:05 -06:00
parent c578fe56c3
commit 8cba237086
18 changed files with 3918 additions and 0 deletions
@@ -0,0 +1,91 @@
+package main
+
+import "fmt"
+
+func FIXMEEC(ctx Context) {
+	ap := Create(ctx, "acpi/platform.asl")
+	defer ap.Close()
+
+	hasKeyboard := ctx.InfoSource.HasPS2()
+
+	sbGPE := GuessECGPE(ctx)
+	var GPEUnsure bool
+	if sbGPE < 0 {
+		sbGPE = SouthBridge.EncodeGPE(1)
+		GPEUnsure = true
+		SouthBridge.NeedRouteGPIOManually()
+	} else {
+		GPEUnsure = false
+		SouthBridge.EnableGPE(SouthBridge.DecodeGPE(sbGPE))
+	}
+
+	Add_gpl(ap)
+	ap.WriteString(
+		`Method(_WAK, 1)
+{
+	/* FIXME: EC support  */
+	Return(Package() {0, 0})
+}
+
+Method(_PTS,1)
+{
+	/* FIXME: EC support  */
+}
+`)
+
+	ecs := ctx.InfoSource.GetEC()
+	MainboardIncludes = append(MainboardIncludes, "ec/acpi/ec.h")
+	MainboardIncludes = append(MainboardIncludes, "console/console.h")
+
+	MainboardInit +=
+		`	/* FIXME: trim this down or remove if necessary */
+	{
+		int i;
+		const u8 dmp[256] = {`
+	for i := 0; i < 0x100; i++ {
+		if (i & 0xf) == 0 {
+			MainboardInit += fmt.Sprintf("\n\t\t\t/* %02x */ ", i)
+		}
+		MainboardInit += fmt.Sprintf("0x%02x,", ecs[i])
+		if (i & 0xf) != 0xf {
+			MainboardInit += " "
+		}
+	}
+	MainboardInit += "\n\t\t};\n"
+	MainboardInit += `
+		printk(BIOS_DEBUG, "Replaying EC dump ...");
+		for (i = 0; i < 256; i++)
+			ec_write (i, dmp[i]);
+		printk(BIOS_DEBUG, "done\n");
+	}
+`
+
+	KconfigBool["EC_ACPI"] = true
+	si := Create(ctx, "acpi/superio.asl")
+	defer si.Close()
+
+	if hasKeyboard {
+		Add_gpl(si)
+		si.WriteString("#include <drivers/pc80/pc/ps2_controller.asl>\n")
+		MainboardInit += fmt.Sprintf("\tpc_keyboard_init(NO_AUX_DEVICE);\n")
+		MainboardIncludes = append(MainboardIncludes, "pc80/keyboard.h")
+	}
+
+	ec := Create(ctx, "acpi/ec.asl")
+	defer ec.Close()
+
+	Add_gpl(ec)
+	ec.WriteString(`Device(EC)
+{
+	Name (_HID, EISAID("PNP0C09"))
+	Name (_UID, 0)
+`)
+	if GPEUnsure {
+		ec.WriteString("\t/* FIXME: Set GPE  */\n")
+		ec.WriteString("\t/* Name (_GPE, ?)  */\n")
+	} else {
+		fmt.Fprintf(ec, "\tName (_GPE, %d)\n", sbGPE)
+	}
+	ec.WriteString("/* FIXME: EC support */\n")
+	ec.WriteString("}\n")
+}