1
2
3
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
13static 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
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
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
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
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
108out:
109 if (is_combo_chip)
110 mt76_wr(dev, MT_MCU_SEMAPHORE_00, 0x1);
111 release_firmware(fw);
112
113 return err;
114}
115
116int 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}
134
