[PATCH v3 04/11] mt76: mt7915: add firmware support for mt7916
Bo Jiao
bo.jiao at mediatek.com
Mon Nov 22 23:49:48 PST 2021
From: Bo Jiao <Bo.Jiao at mediatek.com>
Update firmware initialization for mt7916.
This is an intermediate patch to add mt7916 support.
Co-developed-by: Sujuan Chen <sujuan.chen at mediatek.com>
Signed-off-by: Sujuan Chen <sujuan.chen at mediatek.com>
Co-developed-by: Ryder Lee <ryder.lee at mediatek.com>
Signed-off-by: Ryder Lee <ryder.lee at mediatek.com>
Signed-off-by: Bo Jiao <Bo.Jiao at mediatek.com>
---
v3:
- modify the function mt7915_wfsys_reset to support mt7916
---
.../net/wireless/mediatek/mt76/mt7915/init.c | 71 ++++++++--------
.../net/wireless/mediatek/mt76/mt7915/mcu.c | 81 ++++++++++++++-----
.../wireless/mediatek/mt76/mt7915/mt7915.h | 4 +
.../net/wireless/mediatek/mt76/mt7915/pci.c | 3 +
.../net/wireless/mediatek/mt76/mt7915/regs.h | 7 +-
5 files changed, 114 insertions(+), 52 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/init.c b/drivers/net/wireless/mediatek/mt76/mt7915/init.c
index 21f1337..324263e 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/init.c
@@ -507,41 +507,52 @@ static void mt7915_init_work(struct work_struct *work)
static void mt7915_wfsys_reset(struct mt7915_dev *dev)
{
- u32 val = MT_TOP_PWR_KEY | MT_TOP_PWR_SW_PWR_ON | MT_TOP_PWR_PWR_ON;
+ u32 val;
#define MT_MCU_DUMMY_RANDOM GENMASK(15, 0)
#define MT_MCU_DUMMY_DEFAULT GENMASK(31, 16)
+ if (is_mt7915(&dev->mt76)) {
+ mt76_wr(dev, MT_MCU_WFDMA0_DUMMY_CR, MT_MCU_DUMMY_RANDOM);
+
+ /* change to software control */
+ val |= MT_TOP_PWR_SW_RST;
+ mt76_wr(dev, MT_TOP_PWR_CTRL, val);
+
+ /* reset wfsys */
+ val &= ~MT_TOP_PWR_SW_RST;
+ mt76_wr(dev, MT_TOP_PWR_CTRL, val);
+
+ /* release wfsys then mcu re-excutes romcode */
+ val |= MT_TOP_PWR_SW_RST;
+ mt76_wr(dev, MT_TOP_PWR_CTRL, val);
+
+ /* switch to hw control */
+ val &= ~MT_TOP_PWR_SW_RST;
+ val |= MT_TOP_PWR_HW_CTRL;
+ mt76_wr(dev, MT_TOP_PWR_CTRL, val);
+
+ /* check whether mcu resets to default */
+ if (!mt76_poll_msec(dev, MT_MCU_WFDMA0_DUMMY_CR, MT_MCU_DUMMY_DEFAULT,
+ MT_MCU_DUMMY_DEFAULT, 1000)) {
+ dev_err(dev->mt76.dev, "wifi subsystem reset failure\n");
+ return;
+ }
- mt76_wr(dev, MT_MCU_WFDMA0_DUMMY_CR, MT_MCU_DUMMY_RANDOM);
-
- /* change to software control */
- val |= MT_TOP_PWR_SW_RST;
- mt76_wr(dev, MT_TOP_PWR_CTRL, val);
-
- /* reset wfsys */
- val &= ~MT_TOP_PWR_SW_RST;
- mt76_wr(dev, MT_TOP_PWR_CTRL, val);
+ /* wfsys reset won't clear host registers */
+ mt76_clear(dev, MT_TOP_MISC, MT_TOP_MISC_FW_STATE);
- /* release wfsys then mcu re-excutes romcode */
- val |= MT_TOP_PWR_SW_RST;
- mt76_wr(dev, MT_TOP_PWR_CTRL, val);
+ msleep(100);
+ } else {
+ val = mt76_rr(dev, MT_WF_SUBSYS_RST);
- /* switch to hw control */
- val &= ~MT_TOP_PWR_SW_RST;
- val |= MT_TOP_PWR_HW_CTRL;
- mt76_wr(dev, MT_TOP_PWR_CTRL, val);
+ val |= 0x1;
+ mt76_wr(dev, MT_WF_SUBSYS_RST, val);
+ msleep(20);
- /* check whether mcu resets to default */
- if (!mt76_poll_msec(dev, MT_MCU_WFDMA0_DUMMY_CR, MT_MCU_DUMMY_DEFAULT,
- MT_MCU_DUMMY_DEFAULT, 1000)) {
- dev_err(dev->mt76.dev, "wifi subsystem reset failure\n");
- return;
+ val &= ~0x1;
+ mt76_wr(dev, MT_WF_SUBSYS_RST, val);
+ msleep(20);
}
-
- /* wfsys reset won't clear host registers */
- mt76_clear(dev, MT_TOP_MISC, MT_TOP_MISC_FW_STATE);
-
- msleep(100);
}
static int mt7915_init_hardware(struct mt7915_dev *dev)
@@ -564,12 +575,6 @@ static int mt7915_init_hardware(struct mt7915_dev *dev)
set_bit(MT76_STATE_INITIALIZED, &dev->mphy.state);
- /*
- * force firmware operation mode into normal state,
- * which should be set before firmware download stage.
- */
- mt76_wr(dev, MT_SWDEF_MODE, MT_SWDEF_NORMAL_MODE);
-
ret = mt7915_mcu_init(dev);
if (ret) {
/* Reset and try again */
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
index 7bb6443..fd1df7e 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
@@ -2676,15 +2676,20 @@ static int mt7915_mcu_start_patch(struct mt7915_dev *dev)
sizeof(req), true);
}
-static int mt7915_driver_own(struct mt7915_dev *dev)
+static int mt7915_driver_own(struct mt7915_dev *dev, u8 band)
{
- mt76_wr(dev, MT_TOP_LPCR_HOST_BAND0, MT_TOP_LPCR_HOST_DRV_OWN);
- if (!mt76_poll_msec(dev, MT_TOP_LPCR_HOST_BAND0,
- MT_TOP_LPCR_HOST_FW_OWN, 0, 500)) {
+ mt76_wr(dev, MT_TOP_LPCR_HOST_BAND(band), MT_TOP_LPCR_HOST_DRV_OWN);
+ if (!mt76_poll_msec(dev, MT_TOP_LPCR_HOST_BAND(band),
+ MT_TOP_LPCR_HOST_FW_OWN_STAT,
+ 0, 500)) {
dev_err(dev->mt76.dev, "Timeout for driver own\n");
return -EIO;
}
+ /* clear irq when the driver own success */
+ mt76_wr(dev, MT_TOP_LPCR_HOST_BAND_IRQ_STAT(band),
+ MT_TOP_LPCR_HOST_BAND_STAT);
+
return 0;
}
@@ -2714,6 +2719,7 @@ static int mt7915_load_patch(struct mt7915_dev *dev)
{
const struct mt7915_patch_hdr *hdr;
const struct firmware *fw = NULL;
+ const char *patch;
int i, ret, sem;
sem = mt7915_mcu_patch_sem_ctrl(dev, 1);
@@ -2727,7 +2733,8 @@ static int mt7915_load_patch(struct mt7915_dev *dev)
return -EAGAIN;
}
- ret = request_firmware(&fw, MT7915_ROM_PATCH, dev->mt76.dev);
+ patch = is_mt7915(&dev->mt76) ? MT7915_ROM_PATCH : MT7916_ROM_PATCH;
+ ret = request_firmware(&fw, patch, dev->mt76.dev);
if (ret)
goto out;
@@ -2858,9 +2865,11 @@ static int mt7915_load_ram(struct mt7915_dev *dev)
{
const struct mt7915_fw_trailer *hdr;
const struct firmware *fw;
+ const char *mcu;
int ret;
- ret = request_firmware(&fw, MT7915_FIRMWARE_WM, dev->mt76.dev);
+ mcu = is_mt7915(&dev->mt76) ? MT7915_FIRMWARE_WM : MT7916_FIRMWARE_WM;
+ ret = request_firmware(&fw, mcu, dev->mt76.dev);
if (ret)
return ret;
@@ -2884,7 +2893,8 @@ static int mt7915_load_ram(struct mt7915_dev *dev)
release_firmware(fw);
- ret = request_firmware(&fw, MT7915_FIRMWARE_WA, dev->mt76.dev);
+ mcu = is_mt7915(&dev->mt76) ? MT7915_FIRMWARE_WA : MT7916_FIRMWARE_WA;
+ ret = request_firmware(&fw, mcu, dev->mt76.dev);
if (ret)
return ret;
@@ -2916,10 +2926,36 @@ out:
return ret;
}
+static int
+mt7915_firmware_state(struct mt7915_dev *dev, bool wa)
+{
+ u32 state = FIELD_PREP(MT_TOP_MISC_FW_STATE,
+ wa ? FW_STATE_WACPU_RDY : FW_STATE_FW_DOWNLOAD);
+
+ if (!mt76_poll_msec(dev, MT_TOP_MISC, MT_TOP_MISC_FW_STATE,
+ state, 1000)) {
+ dev_err(dev->mt76.dev, "Timeout for initializing firmware\n");
+ return -EIO;
+ }
+ return 0;
+}
+
static int mt7915_load_firmware(struct mt7915_dev *dev)
{
int ret;
+ /* make sure fw is download state */
+ if (mt7915_firmware_state(dev, false)) {
+ /* restart firmware once */
+ __mt76_mcu_restart(&dev->mt76);
+ ret = mt7915_firmware_state(dev, false);
+ if (ret) {
+ dev_err(dev->mt76.dev,
+ "Firmware is not ready for download\n");
+ return ret;
+ }
+ }
+
ret = mt7915_load_patch(dev);
if (ret)
return ret;
@@ -2928,12 +2964,9 @@ static int mt7915_load_firmware(struct mt7915_dev *dev)
if (ret)
return ret;
- if (!mt76_poll_msec(dev, MT_TOP_MISC, MT_TOP_MISC_FW_STATE,
- FIELD_PREP(MT_TOP_MISC_FW_STATE,
- FW_STATE_WACPU_RDY), 1000)) {
- dev_err(dev->mt76.dev, "Timeout for initializing firmware\n");
- return -EIO;
- }
+ ret = mt7915_firmware_state(dev, true);
+ if (ret)
+ return ret;
mt76_queue_tx_cleanup(dev, dev->mt76.q_mcu[MT_MCUQ_FWDL], false);
@@ -3058,9 +3091,20 @@ int mt7915_mcu_init(struct mt7915_dev *dev)
dev->mt76.mcu_ops = &mt7915_mcu_ops;
- ret = mt7915_driver_own(dev);
+ /* force firmware operation mode into normal state,
+ * which should be set before firmware download stage.
+ */
+ mt76_wr(dev, MT_SWDEF_MODE, MT_SWDEF_NORMAL_MODE);
+
+ ret = mt7915_driver_own(dev, 0);
if (ret)
return ret;
+ /* set driver own for band1 when two hif exist */
+ if (dev->hif2) {
+ ret = mt7915_driver_own(dev, 1);
+ if (ret)
+ return ret;
+ }
ret = mt7915_load_firmware(dev);
if (ret)
@@ -3095,14 +3139,15 @@ int mt7915_mcu_init(struct mt7915_dev *dev)
void mt7915_mcu_exit(struct mt7915_dev *dev)
{
__mt76_mcu_restart(&dev->mt76);
- if (!mt76_poll_msec(dev, MT_TOP_MISC, MT_TOP_MISC_FW_STATE,
- FIELD_PREP(MT_TOP_MISC_FW_STATE,
- FW_STATE_FW_DOWNLOAD), 1000)) {
+ if (mt7915_firmware_state(dev, false)) {
dev_err(dev->mt76.dev, "Failed to exit mcu\n");
return;
}
- mt76_wr(dev, MT_TOP_LPCR_HOST_BAND0, MT_TOP_LPCR_HOST_FW_OWN);
+ mt76_wr(dev, MT_TOP_LPCR_HOST_BAND(0), MT_TOP_LPCR_HOST_FW_OWN);
+ if (dev->hif2)
+ mt76_wr(dev, MT_TOP_LPCR_HOST_BAND(1),
+ MT_TOP_LPCR_HOST_FW_OWN);
skb_queue_purge(&dev->mt76.mcu.res_q);
}
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h b/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h
index 8adb069..cee719f 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mt7915.h
@@ -30,6 +30,10 @@
#define MT7915_FIRMWARE_WM "mediatek/mt7915_wm.bin"
#define MT7915_ROM_PATCH "mediatek/mt7915_rom_patch.bin"
+#define MT7916_FIRMWARE_WA "mediatek/mt7916_wa.bin"
+#define MT7916_FIRMWARE_WM "mediatek/mt7916_wm.bin"
+#define MT7916_ROM_PATCH "mediatek/mt7916_rom_patch.bin"
+
#define MT7915_EEPROM_DEFAULT "mediatek/mt7915_eeprom.bin"
#define MT7915_EEPROM_DEFAULT_DBDC "mediatek/mt7915_eeprom_dbdc.bin"
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/pci.c b/drivers/net/wireless/mediatek/mt76/mt7915/pci.c
index 2aba79a..3134b46 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/pci.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/pci.c
@@ -168,3 +168,6 @@ MODULE_DEVICE_TABLE(pci, mt7915_hif_device_table);
MODULE_FIRMWARE(MT7915_FIRMWARE_WA);
MODULE_FIRMWARE(MT7915_FIRMWARE_WM);
MODULE_FIRMWARE(MT7915_ROM_PATCH);
+MODULE_FIRMWARE(MT7916_FIRMWARE_WA);
+MODULE_FIRMWARE(MT7916_FIRMWARE_WM);
+MODULE_FIRMWARE(MT7916_ROM_PATCH);
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/regs.h b/drivers/net/wireless/mediatek/mt76/mt7915/regs.h
index 0105cc4..1ac5b2a 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/regs.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/regs.h
@@ -787,9 +787,13 @@ enum bit_rev {
#define MT_TOP_BASE 0x18060000
#define MT_TOP(ofs) (MT_TOP_BASE + (ofs))
-#define MT_TOP_LPCR_HOST_BAND0 MT_TOP(0x10)
+#define MT_TOP_LPCR_HOST_BAND(_band) MT_TOP(0x10 + ((_band) * 0x10))
#define MT_TOP_LPCR_HOST_FW_OWN BIT(0)
#define MT_TOP_LPCR_HOST_DRV_OWN BIT(1)
+#define MT_TOP_LPCR_HOST_FW_OWN_STAT BIT(2)
+
+#define MT_TOP_LPCR_HOST_BAND_IRQ_STAT(_band) MT_TOP(0x14 + ((_band) * 0x10))
+#define MT_TOP_LPCR_HOST_BAND_STAT BIT(0)
#define MT_TOP_MISC MT_TOP(0xf0)
#define MT_TOP_MISC_FW_STATE GENMASK(2, 0)
@@ -797,6 +801,7 @@ enum bit_rev {
#define MT_HW_BOUND 0x70010020
#define MT_HW_CHIPID 0x70010200
#define MT_HW_REV 0x70010204
+#define MT_WF_SUBSYS_RST 0x70002600
/* PCIE MAC */
#define MT_PCIE_MAC(ofs) __REG_MAP(dev, MT_PCIE_MAC_BASE, (ofs))
--
2.18.0
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