From 8011cfeea1db4876c4d2775d203c03854334b013 Mon Sep 17 00:00:00 2001
From: "sujuan.chen" <sujuan.chen@mediatek.com>
Date: Thu, 6 Apr 2023 17:50:52 +0800
Subject: [PATCH 2007/2010] wifi: mt76: mt7915: add ctxd support for mt7916

Signed-off-by: sujuan.chen <sujuan.chen@mediatek.com>
---
 mt7915/dma.c  | 20 ++++++++++++++++++++
 mt7915/regs.h | 15 +++++++++++++++
 2 files changed, 35 insertions(+)

diff --git a/mt7915/dma.c b/mt7915/dma.c
index 326c8c8c..f71ec55b 100644
--- a/mt7915/dma.c
+++ b/mt7915/dma.c
@@ -433,6 +433,26 @@ int mt7915_dma_init(struct mt7915_dev *dev, struct mt7915_phy *phy2)
 			if (is_mt7915(mdev))
 				mt76_rmw(dev, MT_WFDMA0_EXT0_CFG, MT_WFDMA0_EXT0_RXWB_KEEP,
 					 MT_WFDMA0_EXT0_RXWB_KEEP);
+			else {
+				if ((mt76_rr(dev, MT_CBTOP_RESV) & 0xff) == 2) {
+					mt76_set(dev, MT_WFDMA0_GLO_CFG, MT_WFDMA0_GLO_CFG_DUMMY_REG);
+					mt76_set(dev, MT_WFDMA0_CTXD_CFG, FIELD_PREP(MT_WFDMA0_CTXD_TIMEOUT, 0xa));
+				} else {
+					mt76_set(dev, MT_WFDMA0_CTXD_CFG, FIELD_PREP(MT_WFDMA0_CTXD_TIMEOUT, 0xff));
+
+					/*Delay tick set to 0xFFFF, which is about 3449us*/
+					mt76_wr(dev, MT_WFDMA_WED_DLY_INT_TICK, 0xffff);
+				}
+
+				mt76_clear(dev, MT_WFDMA0_CTXD_CFG, MT_WFDMA0_CTXD_CASCADE_NUM);
+
+				mt76_set(dev, MT_WFDMA0_CTXD_CFG,
+					FIELD_PREP(MT_WFDMA0_BAND0_CTXD_RING_IDX, 18) |
+					FIELD_PREP(MT_WFDMA0_BAND1_CTXD_RING_IDX, 19) |
+					MT_WFDMA0_BAND0_CTXD_EN | MT_WFDMA0_BAND1_CTXD_EN);
+
+				mt76_set(dev, MT_WFDMA0_CFG_EXT, MT_WFDMA0_EXT_TX_FCTRL_MODE);
+			}
 		}
 	} else {
 		mt76_clear(dev, MT_WFDMA_HOST_CONFIG, MT_WFDMA_HOST_CONFIG_WED);
diff --git a/mt7915/regs.h b/mt7915/regs.h
index 44da7b82..bc963ac8 100644
--- a/mt7915/regs.h
+++ b/mt7915/regs.h
@@ -606,6 +606,7 @@ enum offs_rev {
 #define MT_WFDMA0_GLO_CFG		MT_WFDMA0(0x208)
 #define MT_WFDMA0_GLO_CFG_TX_DMA_EN	BIT(0)
 #define MT_WFDMA0_GLO_CFG_RX_DMA_EN	BIT(2)
+#define MT_WFDMA0_GLO_CFG_DUMMY_REG	BIT(10)
 #define MT_WFDMA0_GLO_CFG_OMIT_TX_INFO	BIT(28)
 #define MT_WFDMA0_GLO_CFG_OMIT_RX_INFO	BIT(27)
 #define MT_WFDMA0_GLO_CFG_OMIT_RX_INFO_PFET2	BIT(21)
@@ -615,6 +616,17 @@ enum offs_rev {
 #define MT_WFDMA0_EXT0_CFG		MT_WFDMA0(0x2b0)
 #define MT_WFDMA0_EXT0_RXWB_KEEP	BIT(10)
 
+#define MT_WFDMA0_CFG_EXT		MT_WFDMA0(0x2b4)
+#define MT_WFDMA0_EXT_TX_FCTRL_MODE	BIT(28)
+
+#define MT_WFDMA0_CTXD_CFG		MT_WFDMA0(0x2bc)
+#define MT_WFDMA0_BAND0_CTXD_EN		BIT(0)
+#define MT_WFDMA0_BAND0_CTXD_RING_IDX	GENMASK(5, 1)
+#define MT_WFDMA0_BAND1_CTXD_EN		BIT(6)
+#define MT_WFDMA0_BAND1_CTXD_RING_IDX	GENMASK(11, 7)
+#define MT_WFDMA0_CTXD_CASCADE_NUM	GENMASK(15, 12)
+#define MT_WFDMA0_CTXD_TIMEOUT		GENMASK(23, 16)
+
 #define MT_WFDMA0_PRI_DLY_INT_CFG0	MT_WFDMA0(0x2f0)
 #define MT_WFDMA0_PRI_DLY_INT_CFG1	MT_WFDMA0(0x2f4)
 #define MT_WFDMA0_PRI_DLY_INT_CFG2	MT_WFDMA0(0x2f8)
@@ -658,6 +670,8 @@ enum offs_rev {
 #define MT_WFDMA_WED_RING_CONTROL_TX1	GENMASK(12, 8)
 #define MT_WFDMA_WED_RING_CONTROL_RX1	GENMASK(20, 16)
 
+#define MT_WFDMA_WED_DLY_INT_TICK	MT_WFDMA_EXT_CSR_PHYS(0x38)
+
 #define MT_WFDMA_EXT_CSR_HIF_MISC	MT_WFDMA_EXT_CSR_PHYS(0x44)
 #define MT_WFDMA_EXT_CSR_HIF_MISC_BUSY	BIT(0)
 
@@ -1186,6 +1200,7 @@ enum offs_rev {
 
 #define MT_HW_BOUND			0x70010020
 #define MT_HW_REV			0x70010204
+#define MT_CBTOP_RESV			0x70010210
 #define MT_WF_SUBSYS_RST		0x70002600
 
 /* PCIE MAC */
-- 
2.39.2