[PATCH 04/11] mt76: mt7915: add firmware support for mt7916
From: Bo Jiao <hidden>
Date: 2021-10-27 09:09:53
Also in:
linux-mediatek
Subsystem:
mediatek mt76 wireless lan driver, the rest · Maintainers:
Felix Fietkau, Lorenzo Bianconi, Ryder Lee, Linus Torvalds
From: Bo Jiao <redacted> Update firmware initialization for mt7916. This is an intermediate patch to add mt7916 support. Co-developed-by: Sujuan Chen <redacted> Signed-off-by: Sujuan Chen <redacted> Co-developed-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Ryder Lee <ryder.lee@mediatek.com> Signed-off-by: Bo Jiao <redacted> --- .../net/wireless/mediatek/mt76/mt7915/init.c | 6 -- .../net/wireless/mediatek/mt76/mt7915/mcu.c | 78 +++++++++++++++---- .../wireless/mediatek/mt76/mt7915/mt7915.h | 4 + .../net/wireless/mediatek/mt76/mt7915/pci.c | 3 + .../net/wireless/mediatek/mt76/mt7915/regs.h | 5 +- 5 files changed, 72 insertions(+), 24 deletions(-)
diff --git a/drivers/net/wireless/mediatek/mt76/mt7915/init.c b/drivers/net/wireless/mediatek/mt76/mt7915/init.c
index f455c12..a4e2d85 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/init.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/init.c@@ -567,12 +567,6 @@ 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 ee9952d..b60b4b2 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/mcu.c@@ -2713,16 +2713,20 @@ 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, + 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 seccess */ + mt76_wr(dev, MT_TOP_LPCR_HOST_BAND_IRQ_STAT(band), + MT_TOP_LPCR_HOST_BAND_STAT); + return 0; }
@@ -2752,6 +2756,7 @@ 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);
@@ -2765,7 +2770,8 @@ 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;
@@ -2896,9 +2902,11 @@ 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;
@@ -2922,7 +2930,8 @@ 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;
@@ -2954,10 +2963,36 @@ 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;
@@ -2966,12 +3001,9 @@ 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);
@@ -3096,9 +3128,20 @@ 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)
@@ -3133,14 +3176,15 @@ 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 4745e3f..caad6bb 100644
--- a/drivers/net/wireless/mediatek/mt76/mt7915/regs.h
+++ b/drivers/net/wireless/mediatek/mt76/mt7915/regs.h@@ -787,11 +787,14 @@ 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)
--
2.18.0