developer | 0f312e8 | 2022-11-01 12:31:52 +0800 | [diff] [blame] | 1 | // SPDX-License-Identifier: ISC |
| 2 | /* Copyright (C) 2021 MediaTek Inc. */ |
| 3 | |
| 4 | #include <linux/iopoll.h> |
| 5 | #include <linux/mmc/sdio_func.h> |
| 6 | #include "mt7921.h" |
| 7 | #include "mac.h" |
| 8 | #include "../sdio.h" |
| 9 | |
| 10 | static void mt7921s_enable_irq(struct mt76_dev *dev) |
| 11 | { |
| 12 | struct mt76_sdio *sdio = &dev->sdio; |
| 13 | |
| 14 | sdio_claim_host(sdio->func); |
| 15 | sdio_writel(sdio->func, WHLPCR_INT_EN_SET, MCR_WHLPCR, NULL); |
| 16 | sdio_release_host(sdio->func); |
| 17 | } |
| 18 | |
| 19 | static void mt7921s_disable_irq(struct mt76_dev *dev) |
| 20 | { |
| 21 | struct mt76_sdio *sdio = &dev->sdio; |
| 22 | |
| 23 | sdio_claim_host(sdio->func); |
| 24 | sdio_writel(sdio->func, WHLPCR_INT_EN_CLR, MCR_WHLPCR, NULL); |
| 25 | sdio_release_host(sdio->func); |
| 26 | } |
| 27 | |
| 28 | static u32 mt7921s_read_whcr(struct mt76_dev *dev) |
| 29 | { |
| 30 | return sdio_readl(dev->sdio.func, MCR_WHCR, NULL); |
| 31 | } |
| 32 | |
| 33 | int mt7921s_wfsys_reset(struct mt7921_dev *dev) |
| 34 | { |
| 35 | struct mt76_sdio *sdio = &dev->mt76.sdio; |
| 36 | u32 val, status; |
| 37 | |
| 38 | mt7921s_mcu_drv_pmctrl(dev); |
| 39 | |
| 40 | sdio_claim_host(sdio->func); |
| 41 | |
| 42 | val = sdio_readl(sdio->func, MCR_WHCR, NULL); |
| 43 | val &= ~WF_WHOLE_PATH_RSTB; |
| 44 | sdio_writel(sdio->func, val, MCR_WHCR, NULL); |
| 45 | |
| 46 | msleep(50); |
| 47 | |
| 48 | val = sdio_readl(sdio->func, MCR_WHCR, NULL); |
| 49 | val &= ~WF_SDIO_WF_PATH_RSTB; |
| 50 | sdio_writel(sdio->func, val, MCR_WHCR, NULL); |
| 51 | |
| 52 | usleep_range(1000, 2000); |
| 53 | |
| 54 | val = sdio_readl(sdio->func, MCR_WHCR, NULL); |
| 55 | val |= WF_WHOLE_PATH_RSTB; |
| 56 | sdio_writel(sdio->func, val, MCR_WHCR, NULL); |
| 57 | |
| 58 | readx_poll_timeout(mt7921s_read_whcr, &dev->mt76, status, |
| 59 | status & WF_RST_DONE, 50000, 2000000); |
| 60 | |
| 61 | sdio_release_host(sdio->func); |
| 62 | |
| 63 | clear_bit(MT76_STATE_MCU_RUNNING, &dev->mphy.state); |
| 64 | |
| 65 | /* activate mt7921s again */ |
| 66 | mt7921s_mcu_drv_pmctrl(dev); |
| 67 | mt76_clear(dev, MT_CONN_STATUS, MT_WIFI_PATCH_DL_STATE); |
| 68 | mt7921s_mcu_fw_pmctrl(dev); |
| 69 | mt7921s_mcu_drv_pmctrl(dev); |
| 70 | |
| 71 | return 0; |
| 72 | } |
| 73 | |
| 74 | int mt7921s_init_reset(struct mt7921_dev *dev) |
| 75 | { |
| 76 | set_bit(MT76_MCU_RESET, &dev->mphy.state); |
| 77 | |
| 78 | wake_up(&dev->mt76.mcu.wait); |
| 79 | skb_queue_purge(&dev->mt76.mcu.res_q); |
| 80 | wait_event_timeout(dev->mt76.sdio.wait, |
| 81 | mt76s_txqs_empty(&dev->mt76), 5 * HZ); |
| 82 | mt76_worker_disable(&dev->mt76.sdio.txrx_worker); |
| 83 | |
| 84 | mt7921s_disable_irq(&dev->mt76); |
| 85 | mt7921s_wfsys_reset(dev); |
| 86 | |
| 87 | mt76_worker_enable(&dev->mt76.sdio.txrx_worker); |
| 88 | clear_bit(MT76_MCU_RESET, &dev->mphy.state); |
| 89 | mt7921s_enable_irq(&dev->mt76); |
| 90 | |
| 91 | return 0; |
| 92 | } |
| 93 | |
| 94 | int mt7921s_mac_reset(struct mt7921_dev *dev) |
| 95 | { |
| 96 | int err; |
| 97 | |
| 98 | mt76_connac_free_pending_tx_skbs(&dev->pm, NULL); |
| 99 | mt76_txq_schedule_all(&dev->mphy); |
| 100 | mt76_worker_disable(&dev->mt76.tx_worker); |
| 101 | set_bit(MT76_RESET, &dev->mphy.state); |
| 102 | set_bit(MT76_MCU_RESET, &dev->mphy.state); |
| 103 | wake_up(&dev->mt76.mcu.wait); |
| 104 | skb_queue_purge(&dev->mt76.mcu.res_q); |
| 105 | wait_event_timeout(dev->mt76.sdio.wait, |
| 106 | mt76s_txqs_empty(&dev->mt76), 5 * HZ); |
| 107 | mt76_worker_disable(&dev->mt76.sdio.txrx_worker); |
| 108 | mt76_worker_disable(&dev->mt76.sdio.status_worker); |
| 109 | mt76_worker_disable(&dev->mt76.sdio.net_worker); |
| 110 | cancel_work_sync(&dev->mt76.sdio.stat_work); |
| 111 | |
| 112 | mt7921s_disable_irq(&dev->mt76); |
| 113 | mt7921s_wfsys_reset(dev); |
| 114 | |
| 115 | mt76_worker_enable(&dev->mt76.sdio.txrx_worker); |
| 116 | mt76_worker_enable(&dev->mt76.sdio.status_worker); |
| 117 | mt76_worker_enable(&dev->mt76.sdio.net_worker); |
| 118 | |
| 119 | dev->fw_assert = false; |
| 120 | clear_bit(MT76_MCU_RESET, &dev->mphy.state); |
| 121 | mt7921s_enable_irq(&dev->mt76); |
| 122 | |
| 123 | err = mt7921_run_firmware(dev); |
| 124 | if (err) |
| 125 | goto out; |
| 126 | |
| 127 | err = mt7921_mcu_set_eeprom(dev); |
| 128 | if (err) |
| 129 | goto out; |
| 130 | |
| 131 | err = mt7921_mac_init(dev); |
| 132 | if (err) |
| 133 | goto out; |
| 134 | |
| 135 | err = __mt7921_start(&dev->phy); |
| 136 | out: |
| 137 | clear_bit(MT76_RESET, &dev->mphy.state); |
| 138 | |
| 139 | mt76_worker_enable(&dev->mt76.tx_worker); |
| 140 | |
| 141 | return err; |
| 142 | } |