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mt76x0: pci: add fw uploading routine

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Add pci load firmware routine. Move some shared mcu definitions
in mt76x02_mcu.h

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Lorenzo Bianconi 2018-09-19 13:53:58 +02:00 committed by Felix Fietkau
parent 9b1140bdc6
commit db2803bbda
5 changed files with 133 additions and 13 deletions
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5
drivers/net/wireless/mediatek/mt76/mt76x0/mcu.h
View file

@ -41,4 +41,9 @@ enum mcu_calibrate {
MCU_CAL_TX_GROUP_DELAY,
};
static inline int mt76x0_firmware_running(struct mt76x0_dev *dev)
{
return mt76_rr(dev, MT_MCU_COM_REG0) == 1;
}
#endif

120
drivers/net/wireless/mediatek/mt76/mt76x0/pci.c
View file

@ -15,10 +15,122 @@
*/
#include <linux/kernel.h>
#include <linux/firmware.h>
#include <linux/module.h>
#include <linux/pci.h>
#include "mt76x0.h"
#include "mcu.h"
#define MT7610E_FIRMWARE "mediatek/mt7610e.bin"
#define MT7650E_FIRMWARE "mediatek/mt7650e.bin"
#define MT_MCU_IVB_ADDR (MT_MCU_ILM_ADDR + 0x54000 - MT_MCU_IVB_SIZE)
static int mt76x0e_load_firmware(struct mt76x0_dev *dev)
{
bool is_combo_chip = mt76_chip(&dev->mt76) != 0x7610;
u32 val, ilm_len, dlm_len, offset = 0;
const struct mt76x02_fw_header *hdr;
const struct firmware *fw;
const char *firmware;
const u8 *fw_payload;
int len, err;
if (mt76x0_firmware_running(dev))
return 0;
if (is_combo_chip)
firmware = MT7650E_FIRMWARE;
else
firmware = MT7610E_FIRMWARE;
err = request_firmware(&fw, firmware, dev->mt76.dev);
if (err)
return err;
if (!fw || !fw->data || fw->size < sizeof(*hdr)) {
err = -EIO;
goto out;
}
hdr = (const struct mt76x02_fw_header *)fw->data;
len = sizeof(*hdr);
len += le32_to_cpu(hdr->ilm_len);
len += le32_to_cpu(hdr->dlm_len);
if (fw->size != len) {
err = -EIO;
goto out;
}
fw_payload = fw->data + sizeof(*hdr);
val = le16_to_cpu(hdr->fw_ver);
dev_info(dev->mt76.dev, "Firmware Version: %d.%d.%02d\n",
(val >> 12) & 0xf, (val >> 8) & 0xf, val & 0xf);
val = le16_to_cpu(hdr->fw_ver);
dev_dbg(dev->mt76.dev,
"Firmware Version: %d.%d.%02d Build: %x Build time: %.16s\n",
(val >> 12) & 0xf, (val >> 8) & 0xf, val & 0xf,
le16_to_cpu(hdr->build_ver), hdr->build_time);
if (is_combo_chip && !mt76_poll(dev, MT_MCU_SEMAPHORE_00, 1, 1, 600)) {
dev_err(dev->mt76.dev,
"Could not get hardware semaphore for loading fw\n");
err = -ETIMEDOUT;
goto out;
}
/* upload ILM. */
mt76_wr(dev, MT_MCU_PCIE_REMAP_BASE4, 0);
ilm_len = le32_to_cpu(hdr->ilm_len);
if (is_combo_chip) {
ilm_len -= MT_MCU_IVB_SIZE;
offset = MT_MCU_IVB_SIZE;
}
dev_dbg(dev->mt76.dev, "loading FW - ILM %u\n", ilm_len);
mt76_wr_copy(dev, MT_MCU_ILM_ADDR + offset, fw_payload + offset,
ilm_len);
/* upload IVB. */
if (is_combo_chip) {
dev_dbg(dev->mt76.dev, "loading FW - IVB %u\n",
MT_MCU_IVB_SIZE);
mt76_wr_copy(dev, MT_MCU_IVB_ADDR, fw_payload, MT_MCU_IVB_SIZE);
}
/* upload DLM. */
mt76_wr(dev, MT_MCU_PCIE_REMAP_BASE4, MT_MCU_DLM_OFFSET);
dlm_len = le32_to_cpu(hdr->dlm_len);
dev_dbg(dev->mt76.dev, "loading FW - DLM %u\n", dlm_len);
mt76_wr_copy(dev, MT_MCU_ILM_ADDR,
fw_payload + le32_to_cpu(hdr->ilm_len), dlm_len);
/* trigger firmware */
mt76_wr(dev, MT_MCU_PCIE_REMAP_BASE4, 0);
if (is_combo_chip)
mt76_wr(dev, MT_MCU_INT_LEVEL, 0x3);
else
mt76_wr(dev, MT_MCU_RESET_CTL, 0x300);
if (!mt76_poll_msec(dev, MT_MCU_COM_REG0, 1, 1, 1000)) {
dev_err(dev->mt76.dev, "Firmware failed to start\n");
err = -ETIMEDOUT;
goto out;
}
dev_dbg(dev->mt76.dev, "Firmware running!\n");
out:
if (is_combo_chip)
mt76_wr(dev, MT_MCU_SEMAPHORE_00, 0x1);
release_firmware(fw);
return err;
}
static int
mt76x0e_probe(struct pci_dev *pdev, const struct pci_device_id *id)
@ -49,7 +161,13 @@ mt76x0e_probe(struct pci_dev *pdev, const struct pci_device_id *id)
dev->mt76.rev = mt76_rr(dev, MT_ASIC_VERSION);
dev_info(dev->mt76.dev, "ASIC revision: %08x\n", dev->mt76.rev);
/* error: */
ret = mt76x0e_load_firmware(dev);
if (ret < 0)
goto error;
return 0;
error:
ieee80211_free_hw(mt76_hw(dev));
return ret;
}

5
drivers/net/wireless/mediatek/mt76/mt76x0/usb.c
View file

@ -54,11 +54,6 @@ static struct usb_device_id mt76x0_device_table[] = {
#define MCU_FW_URB_MAX_PAYLOAD 0x38f8
#define MCU_FW_URB_SIZE (MCU_FW_URB_MAX_PAYLOAD + 12)
static inline int mt76x0_firmware_running(struct mt76x0_dev *dev)
{
return mt76_rr(dev, MT_MCU_COM_REG0) == 1;
}
static int
mt76x0u_upload_firmware(struct mt76x0_dev *dev,
const struct mt76x02_fw_header *hdr)

9
drivers/net/wireless/mediatek/mt76/mt76x02_mcu.h
View file

@ -27,6 +27,15 @@
#define MT_INBAND_PACKET_MAX_LEN 192
#define MT_MCU_MEMMAP_WLAN 0x410000
#define MT_MCU_PCIE_REMAP_BASE4 0x074C
#define MT_MCU_SEMAPHORE_00 0x07B0
#define MT_MCU_SEMAPHORE_01 0x07B4
#define MT_MCU_SEMAPHORE_02 0x07B8
#define MT_MCU_SEMAPHORE_03 0x07BC
#define MT_MCU_ILM_ADDR 0x80000
enum mcu_cmd {
CMD_FUN_SET_OP = 1,
CMD_LOAD_CR = 2,

7
drivers/net/wireless/mediatek/mt76/mt76x2_mcu.h
View file

@ -25,7 +25,6 @@
#define MT_MCU_PCIE_REMAP_BASE1 0x0740
#define MT_MCU_PCIE_REMAP_BASE2 0x0744
#define MT_MCU_PCIE_REMAP_BASE3 0x0748
#define MT_MCU_PCIE_REMAP_BASE4 0x074C
#define MT_LED_CTRL 0x0770
#define MT_LED_CTRL_REPLAY(_n) BIT(0 + (8 * (_n)))
@ -50,16 +49,10 @@
#define MT_LED_STATUS_DURATION(_v) (((_v) << __ffs(MT_LED_STATUS_DURATION_MASK)) & \
MT_LED_STATUS_DURATION_MASK)
#define MT_MCU_SEMAPHORE_00 0x07B0
#define MT_MCU_SEMAPHORE_01 0x07B4
#define MT_MCU_SEMAPHORE_02 0x07B8
#define MT_MCU_SEMAPHORE_03 0x07BC
#define MT_MCU_ROM_PATCH_OFFSET 0x80000
#define MT_MCU_ROM_PATCH_ADDR 0x90000
#define MT_MCU_ILM_OFFSET 0x80000
#define MT_MCU_ILM_ADDR 0x80000
#define MT_MCU_DLM_OFFSET 0x100000
#define MT_MCU_DLM_ADDR 0x90000