developer | b11a539 | 2022-03-31 00:34:47 +0800 | [diff] [blame] | 1 | // SPDX-License-Identifier: ISC |
| 2 | /* |
| 3 | * Copyright (C) 2018 Lorenzo Bianconi <lorenzo.bianconi83@gmail.com> |
| 4 | */ |
| 5 | #include <linux/kernel.h> |
| 6 | #include <linux/firmware.h> |
| 7 | |
| 8 | #include "mt76x0.h" |
| 9 | #include "mcu.h" |
| 10 | |
| 11 | #define MT_MCU_IVB_ADDR (MT_MCU_ILM_ADDR + 0x54000 - MT_MCU_IVB_SIZE) |
| 12 | |
| 13 | static int mt76x0e_load_firmware(struct mt76x02_dev *dev) |
| 14 | { |
| 15 | bool is_combo_chip = mt76_chip(&dev->mt76) != 0x7610; |
| 16 | u32 val, ilm_len, dlm_len, offset = 0; |
| 17 | const struct mt76x02_fw_header *hdr; |
| 18 | const struct firmware *fw; |
| 19 | const char *firmware; |
| 20 | const u8 *fw_payload; |
| 21 | int len, err; |
| 22 | |
| 23 | if (is_combo_chip) |
| 24 | firmware = MT7650E_FIRMWARE; |
| 25 | else |
| 26 | firmware = MT7610E_FIRMWARE; |
| 27 | |
| 28 | err = request_firmware(&fw, firmware, dev->mt76.dev); |
| 29 | if (err) |
| 30 | return err; |
| 31 | |
| 32 | if (!fw || !fw->data || fw->size < sizeof(*hdr)) { |
| 33 | err = -EIO; |
| 34 | goto out; |
| 35 | } |
| 36 | |
| 37 | hdr = (const struct mt76x02_fw_header *)fw->data; |
| 38 | |
| 39 | len = sizeof(*hdr); |
| 40 | len += le32_to_cpu(hdr->ilm_len); |
| 41 | len += le32_to_cpu(hdr->dlm_len); |
| 42 | |
| 43 | if (fw->size != len) { |
| 44 | err = -EIO; |
| 45 | goto out; |
| 46 | } |
| 47 | |
| 48 | fw_payload = fw->data + sizeof(*hdr); |
| 49 | |
| 50 | val = le16_to_cpu(hdr->fw_ver); |
| 51 | dev_info(dev->mt76.dev, "Firmware Version: %d.%d.%02d\n", |
| 52 | (val >> 12) & 0xf, (val >> 8) & 0xf, val & 0xf); |
| 53 | |
| 54 | val = le16_to_cpu(hdr->fw_ver); |
| 55 | dev_dbg(dev->mt76.dev, |
| 56 | "Firmware Version: %d.%d.%02d Build: %x Build time: %.16s\n", |
| 57 | (val >> 12) & 0xf, (val >> 8) & 0xf, val & 0xf, |
| 58 | le16_to_cpu(hdr->build_ver), hdr->build_time); |
| 59 | |
| 60 | if (is_combo_chip && !mt76_poll(dev, MT_MCU_SEMAPHORE_00, 1, 1, 600)) { |
| 61 | dev_err(dev->mt76.dev, |
| 62 | "Could not get hardware semaphore for loading fw\n"); |
| 63 | err = -ETIMEDOUT; |
| 64 | goto out; |
| 65 | } |
| 66 | |
| 67 | /* upload ILM. */ |
| 68 | mt76_wr(dev, MT_MCU_PCIE_REMAP_BASE4, 0); |
| 69 | ilm_len = le32_to_cpu(hdr->ilm_len); |
| 70 | if (is_combo_chip) { |
| 71 | ilm_len -= MT_MCU_IVB_SIZE; |
| 72 | offset = MT_MCU_IVB_SIZE; |
| 73 | } |
| 74 | dev_dbg(dev->mt76.dev, "loading FW - ILM %u\n", ilm_len); |
| 75 | mt76_wr_copy(dev, MT_MCU_ILM_ADDR + offset, fw_payload + offset, |
| 76 | ilm_len); |
| 77 | |
| 78 | /* upload IVB. */ |
| 79 | if (is_combo_chip) { |
| 80 | dev_dbg(dev->mt76.dev, "loading FW - IVB %u\n", |
| 81 | MT_MCU_IVB_SIZE); |
| 82 | mt76_wr_copy(dev, MT_MCU_IVB_ADDR, fw_payload, MT_MCU_IVB_SIZE); |
| 83 | } |
| 84 | |
| 85 | /* upload DLM. */ |
| 86 | mt76_wr(dev, MT_MCU_PCIE_REMAP_BASE4, MT_MCU_DLM_OFFSET); |
| 87 | dlm_len = le32_to_cpu(hdr->dlm_len); |
| 88 | dev_dbg(dev->mt76.dev, "loading FW - DLM %u\n", dlm_len); |
| 89 | mt76_wr_copy(dev, MT_MCU_ILM_ADDR, |
| 90 | fw_payload + le32_to_cpu(hdr->ilm_len), dlm_len); |
| 91 | |
| 92 | /* trigger firmware */ |
| 93 | mt76_wr(dev, MT_MCU_PCIE_REMAP_BASE4, 0); |
| 94 | if (is_combo_chip) |
| 95 | mt76_wr(dev, MT_MCU_INT_LEVEL, 0x3); |
| 96 | else |
| 97 | mt76_wr(dev, MT_MCU_RESET_CTL, 0x300); |
| 98 | |
| 99 | if (!mt76_poll_msec(dev, MT_MCU_COM_REG0, 1, 1, 1000)) { |
| 100 | dev_err(dev->mt76.dev, "Firmware failed to start\n"); |
| 101 | err = -ETIMEDOUT; |
| 102 | goto out; |
| 103 | } |
| 104 | |
| 105 | mt76x02_set_ethtool_fwver(dev, hdr); |
| 106 | dev_dbg(dev->mt76.dev, "Firmware running!\n"); |
| 107 | |
| 108 | out: |
| 109 | if (is_combo_chip) |
| 110 | mt76_wr(dev, MT_MCU_SEMAPHORE_00, 0x1); |
| 111 | release_firmware(fw); |
| 112 | |
| 113 | return err; |
| 114 | } |
| 115 | |
| 116 | int mt76x0e_mcu_init(struct mt76x02_dev *dev) |
| 117 | { |
| 118 | static const struct mt76_mcu_ops mt76x0e_mcu_ops = { |
| 119 | .mcu_send_msg = mt76x02_mcu_msg_send, |
| 120 | .mcu_parse_response = mt76x02_mcu_parse_response, |
| 121 | }; |
| 122 | int err; |
| 123 | |
| 124 | dev->mt76.mcu_ops = &mt76x0e_mcu_ops; |
| 125 | |
| 126 | err = mt76x0e_load_firmware(dev); |
| 127 | if (err < 0) |
| 128 | return err; |
| 129 | |
| 130 | set_bit(MT76_STATE_MCU_RUNNING, &dev->mphy.state); |
| 131 | |
| 132 | return 0; |
| 133 | } |