From patchwork Sun Jun 11 00:43:37 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Golle X-Patchwork-Id: 13275109 X-Patchwork-Delegate: kuba@kernel.org Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 216547F0 for ; Sun, 11 Jun 2023 00:44:26 +0000 (UTC) Received: from pidgin.makrotopia.org (pidgin.makrotopia.org [185.142.180.65]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8A2BA35B0; Sat, 10 Jun 2023 17:44:24 -0700 (PDT) Received: from local by pidgin.makrotopia.org with esmtpsa (TLS1.3:TLS_AES_256_GCM_SHA384:256) (Exim 4.96) (envelope-from ) id 1q89Bs-0005Gv-2F; Sun, 11 Jun 2023 00:44:20 +0000 Date: Sun, 11 Jun 2023 01:43:37 +0100 From: Daniel Golle To: netdev@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Russell King , AngeloGioacchino Del Regno , Matthias Brugger , Lorenzo Bianconi , Mark Lee , Sean Wang , John Crispin , Felix Fietkau , Conor Dooley , Krzysztof Kozlowski , Rob Herring , Paolo Abeni , Jakub Kicinski , Eric Dumazet , "David S. Miller" , Sam Shih Subject: [PATCH net-next 8/8] net: ethernet: mtk_eth_soc: add basic support for MT7988 SoC Message-ID: Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Disposition: inline X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,SPF_HELO_NONE, SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: kuba@kernel.org From: Lorenzo Bianconi Introduce support for ethernet chip available in MT7988 SoC to mtk_eth_soc driver. As a first step support only the first GMAC which is hard-wired to the internal DSA switch having 4 built-in gigabit Ethernet PHYs. Signed-off-by: Lorenzo Bianconi Signed-off-by: Daniel Golle --- drivers/net/ethernet/mediatek/mtk_eth_path.c | 11 +- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 205 +++++++++++++++++-- drivers/net/ethernet/mediatek/mtk_eth_soc.h | 85 +++++++- 3 files changed, 279 insertions(+), 22 deletions(-) diff --git a/drivers/net/ethernet/mediatek/mtk_eth_path.c b/drivers/net/ethernet/mediatek/mtk_eth_path.c index 34ac492e047cb..bc8e7e3121ac4 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_path.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_path.c @@ -42,8 +42,8 @@ static const char *mtk_eth_path_name(u64 path) static int set_mux_gdm1_to_gmac1_esw(struct mtk_eth *eth, u64 path) { + u32 val, mask, set, reg; bool updated = true; - u32 val, mask, set; switch (path) { case MTK_ETH_PATH_GMAC1_SGMII: @@ -59,10 +59,15 @@ static int set_mux_gdm1_to_gmac1_esw(struct mtk_eth *eth, u64 path) break; } + if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V3)) + reg = MTK_MAC_MISC_V3; + else + reg = MTK_MAC_MISC; + if (updated) { - val = mtk_r32(eth, MTK_MAC_MISC); + val = mtk_r32(eth, reg); val = (val & mask) | set; - mtk_w32(eth, val, MTK_MAC_MISC); + mtk_w32(eth, val, reg); } dev_dbg(eth->dev, "path %s in %s updated = %d\n", diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index d516917effca6..b2e674e3e3c49 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -152,6 +152,54 @@ static const struct mtk_reg_map mt7986_reg_map = { .pse_oq_sta = 0x01a0, }; +static const struct mtk_reg_map mt7988_reg_map = { + .tx_irq_mask = 0x461c, + .tx_irq_status = 0x4618, + .pdma = { + .rx_ptr = 0x6900, + .rx_cnt_cfg = 0x6904, + .pcrx_ptr = 0x6908, + .glo_cfg = 0x6a04, + .rst_idx = 0x6a08, + .delay_irq = 0x6a0c, + .irq_status = 0x6a20, + .irq_mask = 0x6a28, + .adma_rx_dbg0 = 0x6a38, + .int_grp = 0x6a50, + }, + .qdma = { + .qtx_cfg = 0x4400, + .qtx_sch = 0x4404, + .rx_ptr = 0x4500, + .rx_cnt_cfg = 0x4504, + .qcrx_ptr = 0x4508, + .glo_cfg = 0x4604, + .rst_idx = 0x4608, + .delay_irq = 0x460c, + .fc_th = 0x4610, + .int_grp = 0x4620, + .hred = 0x4644, + .ctx_ptr = 0x4700, + .dtx_ptr = 0x4704, + .crx_ptr = 0x4710, + .drx_ptr = 0x4714, + .fq_head = 0x4720, + .fq_tail = 0x4724, + .fq_count = 0x4728, + .fq_blen = 0x472c, + .tx_sch_rate = 0x4798, + }, + .gdm1_cnt = 0x1c00, + .gdma_to_ppe = 0x3333, + .ppe_base = 0x2200, + .wdma_base = { + [0] = 0x4800, + [1] = 0x4c00, + }, + .pse_iq_sta = 0x0180, + .pse_oq_sta = 0x01a0, +}; + /* strings used by ethtool */ static const struct mtk_ethtool_stats { char str[ETH_GSTRING_LEN]; @@ -179,10 +227,54 @@ static const struct mtk_ethtool_stats { }; static const char * const mtk_clks_source_name[] = { - "ethif", "sgmiitop", "esw", "gp0", "gp1", "gp2", "fe", "trgpll", - "sgmii_tx250m", "sgmii_rx250m", "sgmii_cdr_ref", "sgmii_cdr_fb", - "sgmii2_tx250m", "sgmii2_rx250m", "sgmii2_cdr_ref", "sgmii2_cdr_fb", - "sgmii_ck", "eth2pll", "wocpu0", "wocpu1", "netsys0", "netsys1" + "ethif", + "sgmiitop", + "esw", + "gp0", + "gp1", + "gp2", + "gp3", + "xgp1", + "xgp2", + "xgp3", + "crypto", + "fe", + "trgpll", + "sgmii_tx250m", + "sgmii_rx250m", + "sgmii_cdr_ref", + "sgmii_cdr_fb", + "sgmii2_tx250m", + "sgmii2_rx250m", + "sgmii2_cdr_ref", + "sgmii2_cdr_fb", + "sgmii_ck", + "eth2pll", + "wocpu0", + "wocpu1", + "netsys0", + "netsys1", + "ethwarp_wocpu2", + "ethwarp_wocpu1", + "ethwarp_wocpu0", + "top_usxgmii0_sel", + "top_usxgmii1_sel", + "top_sgm0_sel", + "top_sgm1_sel", + "top_xfi_phy0_xtal_sel", + "top_xfi_phy1_xtal_sel", + "top_eth_gmii_sel", + "top_eth_refck_50m_sel", + "top_eth_sys_200m_sel", + "top_eth_sys_sel", + "top_eth_xgmii_sel", + "top_eth_mii_sel", + "top_netsys_sel", + "top_netsys_500m_sel", + "top_netsys_pao_2x_sel", + "top_netsys_sync_250m_sel", + "top_netsys_ppefb_250m_sel", + "top_netsys_warp_sel", }; void mtk_w32(struct mtk_eth *eth, u32 val, unsigned reg) @@ -425,6 +517,23 @@ static void mtk_gmac0_rgmii_adjust(struct mtk_eth *eth, mtk_w32(eth, tck, TRGMII_TCK_CTRL); } +static void mtk_setup_bridge_switch(struct mtk_eth *eth) +{ + int val; + + /* Force Port1 XGMAC Link Up */ + val = mtk_r32(eth, MTK_XGMAC_STS(MTK_GMAC1_ID)); + mtk_w32(eth, val | MTK_XGMAC_FORCE_LINK(MTK_GMAC1_ID), + MTK_XGMAC_STS(MTK_GMAC1_ID)); + + /* Adjust GSW bridge IPG to 11 */ + val = mtk_r32(eth, MTK_GSW_CFG); + val &= ~(GSWTX_IPG_MASK | GSWRX_IPG_MASK); + val |= (GSW_IPG_11 << GSWTX_IPG_SHIFT) | + (GSW_IPG_11 << GSWRX_IPG_SHIFT); + mtk_w32(eth, val, MTK_GSW_CFG); +} + static struct phylink_pcs *mtk_mac_select_pcs(struct phylink_config *config, phy_interface_t interface) { @@ -484,6 +593,8 @@ static void mtk_mac_config(struct phylink_config *config, unsigned int mode, goto init_err; } break; + case PHY_INTERFACE_MODE_INTERNAL: + break; default: goto err_phy; } @@ -562,6 +673,15 @@ static void mtk_mac_config(struct phylink_config *config, unsigned int mode, return; } + /* Setup gmac */ + if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V3) && + mac->interface == PHY_INTERFACE_MODE_INTERNAL) { + mtk_w32(mac->hw, MTK_GDMA_XGDM_SEL, MTK_GDMA_EG_CTRL(mac->id)); + mtk_w32(mac->hw, MAC_MCR_FORCE_LINK_DOWN, MTK_MAC_MCR(mac->id)); + + mtk_setup_bridge_switch(eth); + } + return; err_phy: @@ -807,10 +927,20 @@ static int mtk_mdio_init(struct mtk_eth *eth) } divider = min_t(unsigned int, DIV_ROUND_UP(MDC_MAX_FREQ, max_clk), 63); - /* Configure MDC Divider */ + /* Configure MDC Turbo Mode */ + if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V3)) { + val = mtk_r32(eth, MTK_MAC_MISC_V3); + val |= MISC_MDC_TURBO; + mtk_w32(eth, val, MTK_MAC_MISC_V3); + } val = mtk_r32(eth, MTK_PPSC); + if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V1) || + MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) + val |= PPSC_MDC_TURBO; + + /* Configure MDC Divider */ val &= ~PPSC_MDC_CFG; - val |= FIELD_PREP(PPSC_MDC_CFG, divider) | PPSC_MDC_TURBO; + val |= FIELD_PREP(PPSC_MDC_CFG, divider); mtk_w32(eth, val, MTK_PPSC); dev_dbg(eth->dev, "MDC is running on %d Hz\n", MDC_MAX_FREQ / divider); @@ -1272,10 +1402,19 @@ static void mtk_tx_set_dma_desc_v2(struct net_device *dev, void *txd, data |= TX_DMA_LS0; WRITE_ONCE(desc->txd3, data); - if (mac->id == MTK_GMAC3_ID) - data = PSE_GDM3_PORT; - else - data = (mac->id + 1) << TX_DMA_FPORT_SHIFT_V2; /* forward port */ + /* set forward port */ + switch (mac->id) { + case MTK_GMAC1_ID: + data = PSE_GDM1_PORT << TX_DMA_FPORT_SHIFT_V2; + break; + case MTK_GMAC2_ID: + data = PSE_GDM2_PORT << TX_DMA_FPORT_SHIFT_V2; + break; + case MTK_GMAC3_ID: + data = PSE_GDM3_PORT << TX_DMA_FPORT_SHIFT_V2; + break; + } + data |= TX_DMA_SWC_V2 | QID_BITS_V2(info->qid); WRITE_ONCE(desc->txd4, data); @@ -4475,6 +4614,17 @@ static int mtk_add_mac(struct mtk_eth *eth, struct device_node *np) mac->phylink_config.supported_interfaces); } + if (MTK_HAS_CAPS(mac->hw->soc->caps, MTK_NETSYS_V3_BIT) && + MTK_HAS_CAPS(mac->hw->soc->caps, MTK_ESW_BIT) && + id == MTK_GMAC1_ID) { + mac->phylink_config.mac_capabilities = MAC_ASYM_PAUSE | + MAC_SYM_PAUSE | + MAC_10000FD; + phy_interface_zero(mac->phylink_config.supported_interfaces); + __set_bit(PHY_INTERFACE_MODE_INTERNAL, + mac->phylink_config.supported_interfaces); + } + phylink = phylink_create(&mac->phylink_config, of_fwnode_handle(mac->of_node), phy_mode, &mtk_phylink_ops); @@ -5018,6 +5168,24 @@ static const struct mtk_soc_data mt7986_data = { }, }; +static const struct mtk_soc_data mt7988_data = { + .reg_map = &mt7988_reg_map, + .ana_rgc3 = 0x128, + .caps = MT7988_CAPS, + .hw_features = MTK_HW_FEATURES, + .required_clks = MT7988_CLKS_BITMAP, + .required_pctl = false, + .num_devs = 3, + .txrx = { + .txd_size = sizeof(struct mtk_tx_dma_v2), + .rxd_size = sizeof(struct mtk_rx_dma_v2), + .rx_irq_done_mask = MTK_RX_DONE_INT_V2, + .rx_dma_l4_valid = RX_DMA_L4_VALID_V2, + .dma_max_len = MTK_TX_DMA_BUF_LEN_V2, + .dma_len_offset = 8, + }, +}; + static const struct mtk_soc_data rt5350_data = { .reg_map = &mt7628_reg_map, .caps = MT7628_CAPS, @@ -5036,14 +5204,15 @@ static const struct mtk_soc_data rt5350_data = { }; const struct of_device_id of_mtk_match[] = { - { .compatible = "mediatek,mt2701-eth", .data = &mt2701_data}, - { .compatible = "mediatek,mt7621-eth", .data = &mt7621_data}, - { .compatible = "mediatek,mt7622-eth", .data = &mt7622_data}, - { .compatible = "mediatek,mt7623-eth", .data = &mt7623_data}, - { .compatible = "mediatek,mt7629-eth", .data = &mt7629_data}, - { .compatible = "mediatek,mt7981-eth", .data = &mt7981_data}, - { .compatible = "mediatek,mt7986-eth", .data = &mt7986_data}, - { .compatible = "ralink,rt5350-eth", .data = &rt5350_data}, + { .compatible = "mediatek,mt2701-eth", .data = &mt2701_data }, + { .compatible = "mediatek,mt7621-eth", .data = &mt7621_data }, + { .compatible = "mediatek,mt7622-eth", .data = &mt7622_data }, + { .compatible = "mediatek,mt7623-eth", .data = &mt7623_data }, + { .compatible = "mediatek,mt7629-eth", .data = &mt7629_data }, + { .compatible = "mediatek,mt7981-eth", .data = &mt7981_data }, + { .compatible = "mediatek,mt7986-eth", .data = &mt7986_data }, + { .compatible = "mediatek,mt7988-eth", .data = &mt7988_data }, + { .compatible = "ralink,rt5350-eth", .data = &rt5350_data }, {}, }; MODULE_DEVICE_TABLE(of, of_mtk_match); diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.h b/drivers/net/ethernet/mediatek/mtk_eth_soc.h index b941a136eb7e0..7279ac7dc37a2 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.h +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.h @@ -117,7 +117,8 @@ #define MTK_CDMP_EG_CTRL 0x404 /* GDM Exgress Control Register */ -#define MTK_GDMA_FWD_CFG(x) (0x500 + (x * 0x1000)) +#define MTK_GDMA_FWD_CFG(x) ({ typeof(x) _x = (x); (_x == MTK_GMAC3_ID) ? \ + 0x540 : 0x500 + (_x * 0x1000); }) #define MTK_GDMA_SPECIAL_TAG BIT(24) #define MTK_GDMA_ICS_EN BIT(22) #define MTK_GDMA_TCS_EN BIT(21) @@ -126,6 +127,11 @@ #define MTK_GDMA_TO_PDMA 0x0 #define MTK_GDMA_DROP_ALL 0x7777 +/* GDM Egress Control Register */ +#define MTK_GDMA_EG_CTRL(x) ({ typeof(x) _x = (x); (_x == MTK_GMAC3_ID) ? \ + 0x544 : 0x504 + (_x * 0x1000); }) +#define MTK_GDMA_XGDM_SEL BIT(31) + /* Unicast Filter MAC Address Register - Low */ #define MTK_GDMA_MAC_ADRL(x) (0x508 + (x * 0x1000)) @@ -389,7 +395,26 @@ #define PHY_IAC_TIMEOUT HZ #define MTK_MAC_MISC 0x1000c +#define MTK_MAC_MISC_V3 0x10010 #define MTK_MUX_TO_ESW BIT(0) +#define MISC_MDC_TURBO BIT(4) + +/* XMAC status registers */ +#define MTK_XGMAC_STS(x) (((x) == MTK_GMAC3_ID) ? 0x1001C : 0x1000C) +#define MTK_XGMAC_FORCE_LINK(x) (((x) == MTK_GMAC2_ID) ? BIT(31) : BIT(15)) +#define MTK_USXGMII_PCS_LINK BIT(8) +#define MTK_XGMAC_RX_FC BIT(5) +#define MTK_XGMAC_TX_FC BIT(4) +#define MTK_USXGMII_PCS_MODE GENMASK(3, 1) +#define MTK_XGMAC_LINK_STS BIT(0) + +/* GSW bridge registers */ +#define MTK_GSW_CFG (0x10080) +#define GSWTX_IPG_MASK GENMASK(19, 16) +#define GSWTX_IPG_SHIFT 16 +#define GSWRX_IPG_MASK GENMASK(3, 0) +#define GSWRX_IPG_SHIFT 0 +#define GSW_IPG_11 11 /* Mac control registers */ #define MTK_MAC_MCR(x) (0x10100 + (x * 0x100)) @@ -654,6 +679,11 @@ enum mtk_clks_map { MTK_CLK_GP0, MTK_CLK_GP1, MTK_CLK_GP2, + MTK_CLK_GP3, + MTK_CLK_XGP1, + MTK_CLK_XGP2, + MTK_CLK_XGP3, + MTK_CLK_CRYPTO, MTK_CLK_FE, MTK_CLK_TRGPLL, MTK_CLK_SGMII_TX_250M, @@ -670,6 +700,27 @@ enum mtk_clks_map { MTK_CLK_WOCPU1, MTK_CLK_NETSYS0, MTK_CLK_NETSYS1, + MTK_CLK_ETHWARP_WOCPU2, + MTK_CLK_ETHWARP_WOCPU1, + MTK_CLK_ETHWARP_WOCPU0, + MTK_CLK_TOP_USXGMII_SBUS_0_SEL, + MTK_CLK_TOP_USXGMII_SBUS_1_SEL, + MTK_CLK_TOP_SGM_0_SEL, + MTK_CLK_TOP_SGM_1_SEL, + MTK_CLK_TOP_XFI_PHY_0_XTAL_SEL, + MTK_CLK_TOP_XFI_PHY_1_XTAL_SEL, + MTK_CLK_TOP_ETH_GMII_SEL, + MTK_CLK_TOP_ETH_REFCK_50M_SEL, + MTK_CLK_TOP_ETH_SYS_200M_SEL, + MTK_CLK_TOP_ETH_SYS_SEL, + MTK_CLK_TOP_ETH_XGMII_SEL, + MTK_CLK_TOP_ETH_MII_SEL, + MTK_CLK_TOP_NETSYS_SEL, + MTK_CLK_TOP_NETSYS_500M_SEL, + MTK_CLK_TOP_NETSYS_PAO_2X_SEL, + MTK_CLK_TOP_NETSYS_SYNC_250M_SEL, + MTK_CLK_TOP_NETSYS_PPEFB_250M_SEL, + MTK_CLK_TOP_NETSYS_WARP_SEL, MTK_CLK_MAX }; @@ -723,6 +774,36 @@ enum mtk_clks_map { BIT_ULL(MTK_CLK_SGMII2_RX_250M) | \ BIT_ULL(MTK_CLK_SGMII2_CDR_REF) | \ BIT_ULL(MTK_CLK_SGMII2_CDR_FB)) +#define MT7988_CLKS_BITMAP (BIT_ULL(MTK_CLK_FE) | BIT_ULL(MTK_CLK_ESW) | \ + BIT_ULL(MTK_CLK_GP1) | BIT_ULL(MTK_CLK_GP2) | \ + BIT_ULL(MTK_CLK_GP3) | BIT_ULL(MTK_CLK_XGP1) | \ + BIT_ULL(MTK_CLK_XGP2) | BIT_ULL(MTK_CLK_XGP3) | \ + BIT_ULL(MTK_CLK_CRYPTO) | \ + BIT_ULL(MTK_CLK_SGMII_TX_250M) | \ + BIT_ULL(MTK_CLK_SGMII_RX_250M) | \ + BIT_ULL(MTK_CLK_SGMII2_TX_250M) | \ + BIT_ULL(MTK_CLK_SGMII2_RX_250M) | \ + BIT_ULL(MTK_CLK_ETHWARP_WOCPU2) | \ + BIT_ULL(MTK_CLK_ETHWARP_WOCPU1) | \ + BIT_ULL(MTK_CLK_ETHWARP_WOCPU0) | \ + BIT_ULL(MTK_CLK_TOP_USXGMII_SBUS_0_SEL) | \ + BIT_ULL(MTK_CLK_TOP_USXGMII_SBUS_1_SEL) | \ + BIT_ULL(MTK_CLK_TOP_SGM_0_SEL) | \ + BIT_ULL(MTK_CLK_TOP_SGM_1_SEL) | \ + BIT_ULL(MTK_CLK_TOP_XFI_PHY_0_XTAL_SEL) | \ + BIT_ULL(MTK_CLK_TOP_XFI_PHY_1_XTAL_SEL) | \ + BIT_ULL(MTK_CLK_TOP_ETH_GMII_SEL) | \ + BIT_ULL(MTK_CLK_TOP_ETH_REFCK_50M_SEL) | \ + BIT_ULL(MTK_CLK_TOP_ETH_SYS_200M_SEL) | \ + BIT_ULL(MTK_CLK_TOP_ETH_SYS_SEL) | \ + BIT_ULL(MTK_CLK_TOP_ETH_XGMII_SEL) | \ + BIT_ULL(MTK_CLK_TOP_ETH_MII_SEL) | \ + BIT_ULL(MTK_CLK_TOP_NETSYS_SEL) | \ + BIT_ULL(MTK_CLK_TOP_NETSYS_500M_SEL) | \ + BIT_ULL(MTK_CLK_TOP_NETSYS_PAO_2X_SEL) | \ + BIT_ULL(MTK_CLK_TOP_NETSYS_SYNC_250M_SEL) | \ + BIT_ULL(MTK_CLK_TOP_NETSYS_PPEFB_250M_SEL) | \ + BIT_ULL(MTK_CLK_TOP_NETSYS_WARP_SEL)) enum mtk_dev_state { MTK_HW_INIT, @@ -981,6 +1062,8 @@ enum mkt_eth_capabilities { MTK_MUX_GMAC12_TO_GEPHY_SGMII | MTK_QDMA | \ MTK_NETSYS_V2 | MTK_RSTCTRL_PPE1) +#define MT7988_CAPS (MTK_GDM1_ESW | MTK_QDMA | MTK_NETSYS_V3 | MTK_RSTCTRL_PPE1) + struct mtk_tx_dma_desc_info { dma_addr_t addr; u32 size;