1 files changed, 93 insertions, 0 deletions
diff --git a/src/mainboard/51nb/x210/acpi/battery.asl b/src/mainboard/51nb/x210/acpi/battery.asl
new file mode 100644
index 0000000000..9064ad5cee
--- /dev/null
+++ b/src/mainboard/51nb/x210/acpi/battery.asl
@@ -0,0 +1,93 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later  */
+/* This file is part of the coreboot project. */
+
+Device (BAT)
+{
+	Name (_HID, EisaId ("PNP0C0A"))
+	Name (_UID, 1)
+	Name (_PCL, Package () { \_SB })
+
+	Method (_STA, 0, NotSerialized)  // _STA: Status
+	{
+		If (B1SS)
+		{
+			Return (0x1F)
+		}
+		Else
+		{
+			Return (0x0F)
+		}
+	}
+
+	Name (PBIF, Package () {
+		0x00000001,  /* 0x00: Power Unit: mAH */
+		0xFFFFFFFF,  /* 0x01: Design Capacity */
+		0xFFFFFFFF,  /* 0x02: Last Full Charge Capacity */
+		0x00000001,  /* 0x03: Battery Technology: Rechargeable */
+		0xFFFFFFFF,  /* 0x04: Design Voltage */
+		0x00000000,  /* 0x05: Design Capacity of Warning */
+		0xFFFFFFFF,  /* 0x06: Design Capacity of Low */
+		0x00000001,  /* 0x07: Capacity Granularity 1 */
+		0x00000001,  /* 0x08: Capacity Granularity 2 */
+		"Y91",       /* 0x09: Model Number */
+		"",          /* 0x0a: Serial Number */
+		"LION",      /* 0x0b: Battery Type */
+		"CJOYIN"     /* 0x0c: OEM Information */
+	})
+
+	Method (_BIF, 0, Serialized)
+	{
+		/* Design Capacity */
+		Store (DGCP, Index (PBIF, 1))
+
+		/* Last Full Charge Capacity */
+		Store (FLCP, Index (PBIF, 2))
+
+		/* Design Voltage */
+		Store (DGVO, Index (PBIF, 4))
+
+		/* Design Capacity of Warning */
+		Store (BDW, Index (PBIF, 5))
+
+		/* Design Capacity of Low */
+		Store (BDL, Index (PBIF, 6))
+
+		Return (PBIF)
+	}
+
+	Name (PBST, Package () {
+		0x00000000,  /* 0x00: Battery State */
+		0xFFFFFFFF,  /* 0x01: Battery Present Rate */
+		0xFFFFFFFF,  /* 0x02: Battery Remaining Capacity */
+		0xFFFFFFFF,  /* 0x03: Battery Present Voltage */
+	})
+
+	Method (_BST, 0, NotSerialized)  // _BST: Battery Status
+	{
+		/*
+		* 0: BATTERY STATE
+		*
+		* bit 0 = discharging
+		* bit 1 = charging
+		* bit 2 = critical level
+		*/
+		Store (BSTS, Index (PBST, 0))
+
+		/*
+		* 1: BATTERY PRESENT RATE
+		*/
+		Store (BPR, Index (PBST, 1))
+
+		/*
+		* 2: BATTERY REMAINING CAPACITY
+		*/
+		Store (BRC, Index (PBST, 2))
+
+		/*
+		* 3: BATTERY PRESENT VOLTAGE
+		*/
+		Store (BPV, Index (PBST, 3))
+
+		Return (PBST)
+	}
+}