1 // SPDX-License-Identifier: ISC
2 /* Copyright (C) 2020 MediaTek Inc. */
8 int mt7921_init_tx_queues(struct mt7921_phy *phy, int idx, int n_desc)
12 err = mt76_init_tx_queue(phy->mt76, 0, idx, n_desc, MT_TX_RING_BASE);
16 for (i = 0; i <= MT_TXQ_PSD; i++)
17 phy->mt76->q_tx[i] = phy->mt76->q_tx[0];
22 void mt7921_queue_rx_skb(struct mt76_dev *mdev, enum mt76_rxq_id q,
25 struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
26 __le32 *rxd = (__le32 *)skb->data;
27 enum rx_pkt_type type;
30 type = FIELD_GET(MT_RXD0_PKT_TYPE, le32_to_cpu(rxd[0]));
31 flag = FIELD_GET(MT_RXD0_PKT_FLAG, le32_to_cpu(rxd[0]));
33 if (type == PKT_TYPE_RX_EVENT && flag == 0x1)
34 type = PKT_TYPE_NORMAL_MCU;
37 case PKT_TYPE_TXRX_NOTIFY:
38 mt7921_mac_tx_free(dev, skb);
40 case PKT_TYPE_RX_EVENT:
41 mt7921_mcu_rx_event(dev, skb);
43 case PKT_TYPE_NORMAL_MCU:
45 if (!mt7921_mac_fill_rx(dev, skb)) {
46 mt76_rx(&dev->mt76, q, skb);
56 void mt7921_tx_cleanup(struct mt7921_dev *dev)
58 mt76_queue_tx_cleanup(dev, dev->mt76.q_mcu[MT_MCUQ_WM], false);
59 mt76_queue_tx_cleanup(dev, dev->mt76.q_mcu[MT_MCUQ_WA], false);
62 static int mt7921_poll_tx(struct napi_struct *napi, int budget)
64 struct mt7921_dev *dev;
66 dev = container_of(napi, struct mt7921_dev, mt76.tx_napi);
68 if (!mt76_connac_pm_ref(&dev->mphy, &dev->pm)) {
70 queue_work(dev->mt76.wq, &dev->pm.wake_work);
74 mt7921_tx_cleanup(dev);
75 if (napi_complete(napi))
76 mt7921_irq_enable(dev, MT_INT_TX_DONE_ALL);
77 mt76_connac_pm_unref(&dev->pm);
82 static int mt7921_poll_rx(struct napi_struct *napi, int budget)
84 struct mt7921_dev *dev;
87 dev = container_of(napi->dev, struct mt7921_dev, mt76.napi_dev);
89 if (!mt76_connac_pm_ref(&dev->mphy, &dev->pm)) {
91 queue_work(dev->mt76.wq, &dev->pm.wake_work);
94 done = mt76_dma_rx_poll(napi, budget);
95 mt76_connac_pm_unref(&dev->pm);
100 static void mt7921_dma_prefetch(struct mt7921_dev *dev)
102 #define PREFETCH(base, depth) ((base) << 16 | (depth))
104 mt76_wr(dev, MT_WFDMA0_RX_RING0_EXT_CTRL, PREFETCH(0x0, 0x4));
105 mt76_wr(dev, MT_WFDMA0_RX_RING2_EXT_CTRL, PREFETCH(0x40, 0x4));
106 mt76_wr(dev, MT_WFDMA0_RX_RING3_EXT_CTRL, PREFETCH(0x80, 0x4));
107 mt76_wr(dev, MT_WFDMA0_RX_RING4_EXT_CTRL, PREFETCH(0xc0, 0x4));
108 mt76_wr(dev, MT_WFDMA0_RX_RING5_EXT_CTRL, PREFETCH(0x100, 0x4));
110 mt76_wr(dev, MT_WFDMA0_TX_RING0_EXT_CTRL, PREFETCH(0x140, 0x4));
111 mt76_wr(dev, MT_WFDMA0_TX_RING1_EXT_CTRL, PREFETCH(0x180, 0x4));
112 mt76_wr(dev, MT_WFDMA0_TX_RING2_EXT_CTRL, PREFETCH(0x1c0, 0x4));
113 mt76_wr(dev, MT_WFDMA0_TX_RING3_EXT_CTRL, PREFETCH(0x200, 0x4));
114 mt76_wr(dev, MT_WFDMA0_TX_RING4_EXT_CTRL, PREFETCH(0x240, 0x4));
115 mt76_wr(dev, MT_WFDMA0_TX_RING5_EXT_CTRL, PREFETCH(0x280, 0x4));
116 mt76_wr(dev, MT_WFDMA0_TX_RING6_EXT_CTRL, PREFETCH(0x2c0, 0x4));
117 mt76_wr(dev, MT_WFDMA0_TX_RING16_EXT_CTRL, PREFETCH(0x340, 0x4));
118 mt76_wr(dev, MT_WFDMA0_TX_RING17_EXT_CTRL, PREFETCH(0x380, 0x4));
121 static u32 __mt7921_reg_addr(struct mt7921_dev *dev, u32 addr)
123 static const struct {
128 { 0x00400000, 0x80000, 0x10000}, /* WF_MCU_SYSRAM */
129 { 0x00410000, 0x90000, 0x10000}, /* WF_MCU_SYSRAM (configure register) */
130 { 0x40000000, 0x70000, 0x10000}, /* WF_UMAC_SYSRAM */
131 { 0x54000000, 0x02000, 0x1000 }, /* WFDMA PCIE0 MCU DMA0 */
132 { 0x55000000, 0x03000, 0x1000 }, /* WFDMA PCIE0 MCU DMA1 */
133 { 0x58000000, 0x06000, 0x1000 }, /* WFDMA PCIE1 MCU DMA0 (MEM_DMA) */
134 { 0x59000000, 0x07000, 0x1000 }, /* WFDMA PCIE1 MCU DMA1 */
135 { 0x7c000000, 0xf0000, 0x10000 }, /* CONN_INFRA */
136 { 0x7c020000, 0xd0000, 0x10000 }, /* CONN_INFRA, WFDMA */
137 { 0x7c060000, 0xe0000, 0x10000}, /* CONN_INFRA, conn_host_csr_top */
138 { 0x80020000, 0xb0000, 0x10000 }, /* WF_TOP_MISC_OFF */
139 { 0x81020000, 0xc0000, 0x10000 }, /* WF_TOP_MISC_ON */
140 { 0x820c0000, 0x08000, 0x4000 }, /* WF_UMAC_TOP (PLE) */
141 { 0x820c8000, 0x0c000, 0x2000 }, /* WF_UMAC_TOP (PSE) */
142 { 0x820cc000, 0x0e000, 0x2000 }, /* WF_UMAC_TOP (PP) */
143 { 0x820ce000, 0x21c00, 0x0200 }, /* WF_LMAC_TOP (WF_SEC) */
144 { 0x820cf000, 0x22000, 0x1000 }, /* WF_LMAC_TOP (WF_PF) */
145 { 0x820d0000, 0x30000, 0x10000 }, /* WF_LMAC_TOP (WF_WTBLON) */
146 { 0x820e0000, 0x20000, 0x0400 }, /* WF_LMAC_TOP BN0 (WF_CFG) */
147 { 0x820e1000, 0x20400, 0x0200 }, /* WF_LMAC_TOP BN0 (WF_TRB) */
148 { 0x820e2000, 0x20800, 0x0400 }, /* WF_LMAC_TOP BN0 (WF_AGG) */
149 { 0x820e3000, 0x20c00, 0x0400 }, /* WF_LMAC_TOP BN0 (WF_ARB) */
150 { 0x820e4000, 0x21000, 0x0400 }, /* WF_LMAC_TOP BN0 (WF_TMAC) */
151 { 0x820e5000, 0x21400, 0x0800 }, /* WF_LMAC_TOP BN0 (WF_RMAC) */
152 { 0x820e7000, 0x21e00, 0x0200 }, /* WF_LMAC_TOP BN0 (WF_DMA) */
153 { 0x820e9000, 0x23400, 0x0200 }, /* WF_LMAC_TOP BN0 (WF_WTBLOFF) */
154 { 0x820ea000, 0x24000, 0x0200 }, /* WF_LMAC_TOP BN0 (WF_ETBF) */
155 { 0x820eb000, 0x24200, 0x0400 }, /* WF_LMAC_TOP BN0 (WF_LPON) */
156 { 0x820ec000, 0x24600, 0x0200 }, /* WF_LMAC_TOP BN0 (WF_INT) */
157 { 0x820ed000, 0x24800, 0x0800 }, /* WF_LMAC_TOP BN0 (WF_MIB) */
158 { 0x820f0000, 0xa0000, 0x0400 }, /* WF_LMAC_TOP BN1 (WF_CFG) */
159 { 0x820f1000, 0xa0600, 0x0200 }, /* WF_LMAC_TOP BN1 (WF_TRB) */
160 { 0x820f2000, 0xa0800, 0x0400 }, /* WF_LMAC_TOP BN1 (WF_AGG) */
161 { 0x820f3000, 0xa0c00, 0x0400 }, /* WF_LMAC_TOP BN1 (WF_ARB) */
162 { 0x820f4000, 0xa1000, 0x0400 }, /* WF_LMAC_TOP BN1 (WF_TMAC) */
163 { 0x820f5000, 0xa1400, 0x0800 }, /* WF_LMAC_TOP BN1 (WF_RMAC) */
164 { 0x820f7000, 0xa1e00, 0x0200 }, /* WF_LMAC_TOP BN1 (WF_DMA) */
165 { 0x820f9000, 0xa3400, 0x0200 }, /* WF_LMAC_TOP BN1 (WF_WTBLOFF) */
166 { 0x820fa000, 0xa4000, 0x0200 }, /* WF_LMAC_TOP BN1 (WF_ETBF) */
167 { 0x820fb000, 0xa4200, 0x0400 }, /* WF_LMAC_TOP BN1 (WF_LPON) */
168 { 0x820fc000, 0xa4600, 0x0200 }, /* WF_LMAC_TOP BN1 (WF_INT) */
169 { 0x820fd000, 0xa4800, 0x0800 }, /* WF_LMAC_TOP BN1 (WF_MIB) */
176 for (i = 0; i < ARRAY_SIZE(fixed_map); i++) {
179 if (addr < fixed_map[i].phys)
182 ofs = addr - fixed_map[i].phys;
183 if (ofs > fixed_map[i].size)
186 return fixed_map[i].mapped + ofs;
189 if ((addr >= 0x18000000 && addr < 0x18c00000) ||
190 (addr >= 0x70000000 && addr < 0x78000000) ||
191 (addr >= 0x7c000000 && addr < 0x7c400000))
192 return mt7921_reg_map_l1(dev, addr);
194 dev_err(dev->mt76.dev, "Access currently unsupported address %08x\n",
200 static u32 mt7921_rr(struct mt76_dev *mdev, u32 offset)
202 struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
203 u32 addr = __mt7921_reg_addr(dev, offset);
205 return dev->bus_ops->rr(mdev, addr);
208 static void mt7921_wr(struct mt76_dev *mdev, u32 offset, u32 val)
210 struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
211 u32 addr = __mt7921_reg_addr(dev, offset);
213 dev->bus_ops->wr(mdev, addr, val);
216 static u32 mt7921_rmw(struct mt76_dev *mdev, u32 offset, u32 mask, u32 val)
218 struct mt7921_dev *dev = container_of(mdev, struct mt7921_dev, mt76);
219 u32 addr = __mt7921_reg_addr(dev, offset);
221 return dev->bus_ops->rmw(mdev, addr, mask, val);
224 static int mt7921_dma_disable(struct mt7921_dev *dev, bool force)
228 mt76_clear(dev, MT_WFDMA0_RST,
229 MT_WFDMA0_RST_DMASHDL_ALL_RST |
230 MT_WFDMA0_RST_LOGIC_RST);
232 mt76_set(dev, MT_WFDMA0_RST,
233 MT_WFDMA0_RST_DMASHDL_ALL_RST |
234 MT_WFDMA0_RST_LOGIC_RST);
237 /* disable dmashdl */
238 mt76_clear(dev, MT_WFDMA0_GLO_CFG_EXT0,
239 MT_WFDMA0_CSR_TX_DMASHDL_ENABLE);
240 mt76_set(dev, MT_DMASHDL_SW_CONTROL, MT_DMASHDL_DMASHDL_BYPASS);
243 mt76_clear(dev, MT_WFDMA0_GLO_CFG,
244 MT_WFDMA0_GLO_CFG_TX_DMA_EN | MT_WFDMA0_GLO_CFG_RX_DMA_EN |
245 MT_WFDMA0_GLO_CFG_CSR_DISP_BASE_PTR_CHAIN_EN |
246 MT_WFDMA0_GLO_CFG_OMIT_TX_INFO |
247 MT_WFDMA0_GLO_CFG_OMIT_RX_INFO |
248 MT_WFDMA0_GLO_CFG_OMIT_RX_INFO_PFET2);
250 if (!mt76_poll(dev, MT_WFDMA0_GLO_CFG,
251 MT_WFDMA0_GLO_CFG_TX_DMA_BUSY |
252 MT_WFDMA0_GLO_CFG_RX_DMA_BUSY, 0, 1000))
258 static int mt7921_dma_enable(struct mt7921_dev *dev)
260 /* configure perfetch settings */
261 mt7921_dma_prefetch(dev);
264 mt76_wr(dev, MT_WFDMA0_RST_DTX_PTR, ~0);
266 /* configure delay interrupt */
267 mt76_wr(dev, MT_WFDMA0_PRI_DLY_INT_CFG0, 0);
269 mt76_set(dev, MT_WFDMA0_GLO_CFG,
270 MT_WFDMA0_GLO_CFG_TX_WB_DDONE |
271 MT_WFDMA0_GLO_CFG_FIFO_LITTLE_ENDIAN |
272 MT_WFDMA0_GLO_CFG_CLK_GAT_DIS |
273 MT_WFDMA0_GLO_CFG_OMIT_TX_INFO |
274 MT_WFDMA0_GLO_CFG_CSR_DISP_BASE_PTR_CHAIN_EN |
275 MT_WFDMA0_GLO_CFG_OMIT_RX_INFO_PFET2);
277 mt76_set(dev, MT_WFDMA0_GLO_CFG,
278 MT_WFDMA0_GLO_CFG_TX_DMA_EN | MT_WFDMA0_GLO_CFG_RX_DMA_EN);
280 mt76_set(dev, MT_WFDMA_DUMMY_CR, MT_WFDMA_NEED_REINIT);
282 /* enable interrupts for TX/RX rings */
283 mt7921_irq_enable(dev,
284 MT_INT_RX_DONE_ALL | MT_INT_TX_DONE_ALL |
286 mt76_set(dev, MT_MCU2HOST_SW_INT_ENA, MT_MCU_CMD_WAKE_RX_PCIE);
291 static int mt7921_dma_reset(struct mt7921_dev *dev, bool force)
295 err = mt7921_dma_disable(dev, force);
299 /* reset hw queues */
300 for (i = 0; i < __MT_TXQ_MAX; i++)
301 mt76_queue_reset(dev, dev->mphy.q_tx[i]);
303 for (i = 0; i < __MT_MCUQ_MAX; i++)
304 mt76_queue_reset(dev, dev->mt76.q_mcu[i]);
306 mt76_for_each_q_rx(&dev->mt76, i)
307 mt76_queue_reset(dev, &dev->mt76.q_rx[i]);
309 mt76_tx_status_check(&dev->mt76, NULL, true);
311 return mt7921_dma_enable(dev);
314 int mt7921_wfsys_reset(struct mt7921_dev *dev)
316 mt76_clear(dev, MT_WFSYS_SW_RST_B, WFSYS_SW_RST_B);
318 mt76_set(dev, MT_WFSYS_SW_RST_B, WFSYS_SW_RST_B);
320 if (!__mt76_poll_msec(&dev->mt76, MT_WFSYS_SW_RST_B,
321 WFSYS_SW_INIT_DONE, WFSYS_SW_INIT_DONE, 500))
327 int mt7921_wpdma_reset(struct mt7921_dev *dev, bool force)
331 /* clean up hw queues */
332 for (i = 0; i < ARRAY_SIZE(dev->mt76.phy.q_tx); i++)
333 mt76_queue_tx_cleanup(dev, dev->mphy.q_tx[i], true);
335 for (i = 0; i < ARRAY_SIZE(dev->mt76.q_mcu); i++)
336 mt76_queue_tx_cleanup(dev, dev->mt76.q_mcu[i], true);
338 mt76_for_each_q_rx(&dev->mt76, i)
339 mt76_queue_rx_cleanup(dev, &dev->mt76.q_rx[i]);
342 err = mt7921_wfsys_reset(dev);
346 err = mt7921_dma_reset(dev, force);
350 mt76_for_each_q_rx(&dev->mt76, i)
351 mt76_queue_rx_reset(dev, i);
356 int mt7921_wpdma_reinit_cond(struct mt7921_dev *dev)
358 struct mt76_connac_pm *pm = &dev->pm;
361 /* check if the wpdma must be reinitialized */
362 if (mt7921_dma_need_reinit(dev)) {
363 /* disable interrutpts */
364 mt76_wr(dev, MT_WFDMA0_HOST_INT_ENA, 0);
365 mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0x0);
367 err = mt7921_wpdma_reset(dev, false);
369 dev_err(dev->mt76.dev, "wpdma reset failed\n");
373 /* enable interrutpts */
374 mt76_wr(dev, MT_PCIE_MAC_INT_ENABLE, 0xff);
381 int mt7921_dma_init(struct mt7921_dev *dev)
383 /* Increase buffer size to receive large VHT/HE MPDUs */
384 struct mt76_bus_ops *bus_ops;
385 int rx_buf_size = MT_RX_BUF_SIZE * 2;
388 dev->bus_ops = dev->mt76.bus;
389 bus_ops = devm_kmemdup(dev->mt76.dev, dev->bus_ops, sizeof(*bus_ops),
394 bus_ops->rr = mt7921_rr;
395 bus_ops->wr = mt7921_wr;
396 bus_ops->rmw = mt7921_rmw;
397 dev->mt76.bus = bus_ops;
399 mt76_dma_attach(&dev->mt76);
401 ret = mt7921_dma_disable(dev, true);
405 ret = mt7921_wfsys_reset(dev);
410 ret = mt7921_init_tx_queues(&dev->phy, MT7921_TXQ_BAND0,
411 MT7921_TX_RING_SIZE);
415 mt76_wr(dev, MT_WFDMA0_TX_RING0_EXT_CTRL, 0x4);
418 ret = mt76_init_mcu_queue(&dev->mt76, MT_MCUQ_WM, MT7921_TXQ_MCU_WM,
419 MT7921_TX_MCU_RING_SIZE, MT_TX_RING_BASE);
423 /* firmware download */
424 ret = mt76_init_mcu_queue(&dev->mt76, MT_MCUQ_FWDL, MT7921_TXQ_FWDL,
425 MT7921_TX_FWDL_RING_SIZE, MT_TX_RING_BASE);
429 /* event from WM before firmware download */
430 ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_MCU],
432 MT7921_RX_MCU_RING_SIZE,
433 rx_buf_size, MT_RX_EVENT_RING_BASE);
437 /* Change mcu queue after firmware download */
438 ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_MCU_WA],
440 MT7921_RX_MCU_RING_SIZE,
441 rx_buf_size, MT_WFDMA0(0x540));
446 ret = mt76_queue_alloc(dev, &dev->mt76.q_rx[MT_RXQ_MAIN],
447 MT7921_RXQ_BAND0, MT7921_RX_RING_SIZE,
448 rx_buf_size, MT_RX_DATA_RING_BASE);
452 ret = mt76_init_queues(dev, mt7921_poll_rx);
456 netif_tx_napi_add(&dev->mt76.tx_napi_dev, &dev->mt76.tx_napi,
457 mt7921_poll_tx, NAPI_POLL_WEIGHT);
458 napi_enable(&dev->mt76.tx_napi);
460 return mt7921_dma_enable(dev);
463 void mt7921_dma_cleanup(struct mt7921_dev *dev)
466 mt76_clear(dev, MT_WFDMA0_GLO_CFG,
467 MT_WFDMA0_GLO_CFG_TX_DMA_EN |
468 MT_WFDMA0_GLO_CFG_RX_DMA_EN |
469 MT_WFDMA0_GLO_CFG_CSR_DISP_BASE_PTR_CHAIN_EN |
470 MT_WFDMA0_GLO_CFG_OMIT_TX_INFO |
471 MT_WFDMA0_GLO_CFG_OMIT_RX_INFO |
472 MT_WFDMA0_GLO_CFG_OMIT_RX_INFO_PFET2);
475 mt76_clear(dev, MT_WFDMA0_RST,
476 MT_WFDMA0_RST_DMASHDL_ALL_RST |
477 MT_WFDMA0_RST_LOGIC_RST);
479 mt76_set(dev, MT_WFDMA0_RST,
480 MT_WFDMA0_RST_DMASHDL_ALL_RST |
481 MT_WFDMA0_RST_LOGIC_RST);
483 mt76_dma_cleanup(&dev->mt76);