From patchwork Thu Jul 13 02:46:55 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Feiyang Chen X-Patchwork-Id: 13311213 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 3AE3EA52 for ; Thu, 13 Jul 2023 02:47:21 +0000 (UTC) Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id A0B2E2119 for ; Wed, 12 Jul 2023 19:47:14 -0700 (PDT) Received: from loongson.cn (unknown [112.20.109.108]) by gateway (Coremail) with SMTP id _____8CxruuwZa9kxT8EAA--.9186S3; Thu, 13 Jul 2023 10:47:12 +0800 (CST) Received: from localhost.localdomain (unknown [112.20.109.108]) by localhost.localdomain (Coremail) with SMTP id AQAAf8Cx_c6sZa9kuJcrAA--.57200S5; Thu, 13 Jul 2023 10:47:11 +0800 (CST) From: Feiyang Chen To: andrew@lunn.ch, hkallweit1@gmail.com, peppe.cavallaro@st.com, alexandre.torgue@foss.st.com, joabreu@synopsys.com, chenhuacai@loongson.cn Cc: Feiyang Chen , linux@armlinux.org.uk, dongbiao@loongson.cn, loongson-kernel@lists.loongnix.cn, netdev@vger.kernel.org, loongarch@lists.linux.dev, chris.chenfeiyang@gmail.com Subject: [RFC PATCH 03/10] net: stmmac: dwmac1000: Allow platforms to choose some register offsets Date: Thu, 13 Jul 2023 10:46:55 +0800 Message-Id: <4ca0d657e2b9adc5647264d3bf3c0c7752bb098c.1689215889.git.chenfeiyang@loongson.cn> X-Mailer: git-send-email 2.39.3 In-Reply-To: References: Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-CM-TRANSID: AQAAf8Cx_c6sZa9kuJcrAA--.57200S5 X-CM-SenderInfo: hfkh0wphl1t03j6o00pqjv00gofq/ X-Coremail-Antispam: 1Uk129KBj9fXoWfGFyUKr48Jw4fWr4UCryrKrX_yoW8WFWUAo ZrJFZIvr48Kw1xCr4DCr1rWr90yr1kJa13Ja1rGrWkZa9agryDGFW5JFyfuF43tryxKF4r Aw1xtF1DA34Yv3Z5l-sFpf9Il3svdjkaLaAFLSUrUUUUeb8apTn2vfkv8UJUUUU8wcxFpf 9Il3svdxBIdaVrn0xqx4xG64xvF2IEw4CE5I8CrVC2j2Jv73VFW2AGmfu7bjvjm3AaLaJ3 UjIYCTnIWjp_UUUYW7kC6x804xWl14x267AKxVWUJVW8JwAFc2x0x2IEx4CE42xK8VAvwI 8IcIk0rVWrJVCq3wAFIxvE14AKwVWUXVWUAwA2ocxC64kIII0Yj41l84x0c7CEw4AK67xG Y2AK021l84ACjcxK6xIIjxv20xvE14v26ryj6F1UM28EF7xvwVC0I7IYx2IY6xkF7I0E14 v26r4j6F4UM28EF7xvwVC2z280aVAFwI0_Cr0_Gr1UM28EF7xvwVC2z280aVCY1x0267AK xVW8JVW8Jr1ln4kS14v26r126r1DM2AIxVAIcxkEcVAq07x20xvEncxIr21l57IF6xkI12 xvs2x26I8E6xACxx1l5I8CrVACY4xI64kE6c02F40Ex7xfMcIj6xIIjxv20xvE14v26rWY 6Fy7McIj6I8E87Iv67AKxVW8JVWxJwAm72CE4IkC6x0Yz7v_Jr0_Gr1lF7xvr2IYc2Ij64 vIr41lc7CjxVAaw2AFwI0_JF0_Jw1l42xK82IYc2Ij64vIr41l4I8I3I0E4IkC6x0Yz7v_ Jr0_Gr1l4IxYO2xFxVAFwI0_JF0_Jw1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s026x8Gjc xK67AKxVWUGVWUWwC2zVAF1VAY17CE14v26r1q6r43MIIYrxkI7VAKI48JMIIF0xvE2Ix0 cI8IcVAFwI0_Xr0_Ar1lIxAIcVC0I7IYx2IY6xkF7I0E14v26r4j6F4UMIIF0xvE42xK8V AvwI8IcIk0rVWUJVWUCwCI42IY6I8E87Iv67AKxVW8JVWxJwCI42IY6I8E87Iv6xkF7I0E 14v26r4j6r4UJbIYCTnIWIevJa73UjIFyTuYvjxUVWrXDUUUU X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_BLOCKED,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 X-Patchwork-State: RFC Some platforms have dwmac1000 implementations that have a different address space layout than the default. Extend the macro to allow a platform driver to choose the appropriate register offsets. Signed-off-by: Feiyang Chen --- .../ethernet/stmicro/stmmac/dwmac1000_core.c | 14 +- .../ethernet/stmicro/stmmac/dwmac100_core.c | 3 + .../net/ethernet/stmicro/stmmac/dwmac_dma.h | 205 +++++++++--------- .../net/ethernet/stmicro/stmmac/dwmac_lib.c | 41 ++++ include/linux/stmmac.h | 48 ++++ 5 files changed, 210 insertions(+), 101 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c index b52793edf62f..9015a61f804c 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac1000_core.c @@ -19,6 +19,7 @@ #include "stmmac.h" #include "stmmac_pcs.h" #include "dwmac1000.h" +#include "dwmac_dma.h" static void dwmac1000_core_init(struct mac_device_info *hw, struct net_device *dev) @@ -527,12 +528,10 @@ const struct stmmac_ops dwmac1000_ops = { .set_mac_loopback = dwmac1000_set_mac_loopback, }; -int dwmac1000_setup(struct stmmac_priv *priv) +static int _dwmac1000_setup(struct stmmac_priv *priv) { struct mac_device_info *mac = priv->hw; - dev_info(priv->device, "\tDWMAC1000\n"); - priv->dev->priv_flags |= IFF_UNICAST_FLT; mac->pcsr = priv->ioaddr; mac->multicast_filter_bins = priv->plat->multicast_filter_bins; @@ -558,3 +557,12 @@ int dwmac1000_setup(struct stmmac_priv *priv) return 0; } + +int dwmac1000_setup(struct stmmac_priv *priv) +{ + dev_info(priv->device, "\tDWMAC1000\n"); + + priv->plat->dwmac_regs = &dwmac_default_dma_regs; + + return _dwmac1000_setup(priv); +} diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac100_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac100_core.c index c03623edeb75..73ee16549775 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac100_core.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac100_core.c @@ -18,6 +18,7 @@ #include #include "stmmac.h" #include "dwmac100.h" +#include "dwmac_dma.h" static void dwmac100_core_init(struct mac_device_info *hw, struct net_device *dev) @@ -177,6 +178,8 @@ int dwmac100_setup(struct stmmac_priv *priv) dev_info(priv->device, "\tDWMAC100\n"); + priv->plat->dwmac_regs = &dwmac_default_dma_regs; + mac->pcsr = priv->ioaddr; mac->link.duplex = MAC_CONTROL_F; mac->link.speed10 = 0; diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac_dma.h b/drivers/net/ethernet/stmicro/stmmac/dwmac_dma.h index e7aef136824b..915a4d70fd3b 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac_dma.h +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac_dma.h @@ -11,38 +11,49 @@ #ifndef __DWMAC_DMA_H__ #define __DWMAC_DMA_H__ -/* DMA CRS Control and Status Register Mapping */ -#define DMA_BUS_MODE 0x00001000 /* Bus Mode */ -#define DMA_XMT_POLL_DEMAND 0x00001004 /* Transmit Poll Demand */ -#define DMA_RCV_POLL_DEMAND 0x00001008 /* Received Poll Demand */ -#define DMA_RCV_BASE_ADDR 0x0000100c /* Receive List Base */ -#define DMA_TX_BASE_ADDR 0x00001010 /* Transmit List Base */ -#define DMA_STATUS 0x00001014 /* Status Register */ -#define DMA_CONTROL 0x00001018 /* Ctrl (Operational Mode) */ -#define DMA_INTR_ENA 0x0000101c /* Interrupt Enable */ -#define DMA_MISSED_FRAME_CTR 0x00001020 /* Missed Frame Counter */ +#include "stmmac.h" -/* SW Reset */ -#define DMA_BUS_MODE_SFT_RESET 0x00000001 /* Software Reset */ +#define _REGS (priv->plat->dwmac_regs) -/* Rx watchdog register */ +/* DMA CRS Control and Status Register Mapping */ +#define DMA_CHAN_OFFSET (_REGS->addrs->chan_offset) +#define DMA_BUS_MODE 0x00001000 +#define DMA_XMT_POLL_DEMAND 0x00001004 +#define DMA_RCV_POLL_DEMAND 0x00001008 +#define DMA_RCV_BASE_ADDR (_REGS->addrs->rcv_base_addr) +#define DMA_RCV_BASE_ADDR_HI (DMA_RCV_BASE_ADDR + 0x4) +#define DMA_TX_BASE_ADDR (_REGS->addrs->tx_base_addr) +#define DMA_TX_BASE_ADDR_HI (DMA_TX_BASE_ADDR + 0x4) +#define DMA_STATUS 0x00001014 +#define DMA_CONTROL 0x00001018 +#define DMA_INTR_ENA 0x0000101c +#define DMA_MISSED_FRAME_CTR 0x00001020 #define DMA_RX_WATCHDOG 0x00001024 - -/* AXI Master Bus Mode */ #define DMA_AXI_BUS_MODE 0x00001028 +#define DMA_HW_FEATURE 0x00001058 +#define DMA_FUNC_CONFIG 0x00001080 +#define DMA_FUNC_CONFIG_HI (DMA_FUNC_CONFIG + 0x4) +#define DMA_CUR_TX_BUF_ADDR (_REGS->addrs->cur_tx_buf_addr) +#define DMA_CUR_TX_BUF_ADDR_HI (DMA_CUR_TX_BUF_ADDR + 0x4) +#define DMA_CUR_RX_BUF_ADDR (_REGS->addrs->cur_rx_buf_addr) +#define DMA_CUR_RX_BUF_ADDR_HI (DMA_CUR_RX_BUF_ADDR + 0x4) +#define DMA_RCV_BASE_ADDR_SHADOW1 0x00001068 +#define DMA_RCV_BASE_ADDR_SHADOW2 0x000010a8 + +/* SW Reset */ +#define DMA_BUS_MODE_SFT_RESET 0x00000001 /* Software Reset */ #define DMA_AXI_EN_LPI BIT(31) #define DMA_AXI_LPI_XIT_FRM BIT(30) -#define DMA_AXI_WR_OSR_LMT GENMASK(23, 20) -#define DMA_AXI_WR_OSR_LMT_SHIFT 20 -#define DMA_AXI_WR_OSR_LMT_MASK 0xf -#define DMA_AXI_RD_OSR_LMT GENMASK(19, 16) -#define DMA_AXI_RD_OSR_LMT_SHIFT 16 -#define DMA_AXI_RD_OSR_LMT_MASK 0xf - -#define DMA_AXI_OSR_MAX 0xf -#define DMA_AXI_MAX_OSR_LIMIT ((DMA_AXI_OSR_MAX << DMA_AXI_WR_OSR_LMT_SHIFT) | \ - (DMA_AXI_OSR_MAX << DMA_AXI_RD_OSR_LMT_SHIFT)) +#define DMA_AXI_WR_OSR_LMT (_REGS->axi->wr_osr_lmt) +#define DMA_AXI_WR_OSR_LMT_SHIFT (_REGS->axi->wr_osr_lmt_shift) +#define DMA_AXI_WR_OSR_LMT_MASK (_REGS->axi->wr_osr_lmt_mask) +#define DMA_AXI_RD_OSR_LMT (_REGS->axi->rd_osr_lmt) +#define DMA_AXI_RD_OSR_LMT_SHIFT (_REGS->axi->rd_osr_lmt_shift) +#define DMA_AXI_RD_OSR_LMT_MASK (_REGS->axi->rd_osr_lmt_mask) +#define DMA_AXI_OSR_MAX (_REGS->axi->osr_max) +#define DMA_AXI_MAX_OSR_LIMIT ((DMA_AXI_OSR_MAX << DMA_AXI_WR_OSR_LMT_SHIFT) | \ + (DMA_AXI_OSR_MAX << DMA_AXI_RD_OSR_LMT_SHIFT)) #define DMA_AXI_1KBBE BIT(13) #define DMA_AXI_AAL BIT(12) #define DMA_AXI_BLEN256 BIT(7) @@ -61,38 +72,30 @@ #define DMA_AXI_BURST_LEN_MASK 0x000000FE -#define DMA_CUR_TX_BUF_ADDR 0x00001050 /* Current Host Tx Buffer */ -#define DMA_CUR_RX_BUF_ADDR 0x00001054 /* Current Host Rx Buffer */ -#define DMA_HW_FEATURE 0x00001058 /* HW Feature Register */ - -/* DMA Control register defines */ -#define DMA_CONTROL_ST 0x00002000 /* Start/Stop Transmission */ -#define DMA_CONTROL_SR 0x00000002 /* Start/Stop Receive */ - /* DMA Normal interrupt */ -#define DMA_INTR_ENA_NIE 0x00010000 /* Normal Summary */ -#define DMA_INTR_ENA_TIE 0x00000001 /* Transmit Interrupt */ -#define DMA_INTR_ENA_TUE 0x00000004 /* Transmit Buffer Unavailable */ -#define DMA_INTR_ENA_RIE 0x00000040 /* Receive Interrupt */ -#define DMA_INTR_ENA_ERE 0x00004000 /* Early Receive */ +#define DMA_INTR_ENA_NIE (_REGS->intr_ena->nie) +#define DMA_INTR_ENA_TIE 0x00000001 +#define DMA_INTR_ENA_TUE 0x00000004 +#define DMA_INTR_ENA_RIE 0x00000040 +#define DMA_INTR_ENA_ERE 0x00004000 -#define DMA_INTR_NORMAL (DMA_INTR_ENA_NIE | DMA_INTR_ENA_RIE | \ - DMA_INTR_ENA_TIE) +#define DMA_INTR_NORMAL (DMA_INTR_ENA_NIE | DMA_INTR_ENA_RIE | \ + DMA_INTR_ENA_TIE) /* DMA Abnormal interrupt */ -#define DMA_INTR_ENA_AIE 0x00008000 /* Abnormal Summary */ -#define DMA_INTR_ENA_FBE 0x00002000 /* Fatal Bus Error */ -#define DMA_INTR_ENA_ETE 0x00000400 /* Early Transmit */ -#define DMA_INTR_ENA_RWE 0x00000200 /* Receive Watchdog */ -#define DMA_INTR_ENA_RSE 0x00000100 /* Receive Stopped */ -#define DMA_INTR_ENA_RUE 0x00000080 /* Receive Buffer Unavailable */ -#define DMA_INTR_ENA_UNE 0x00000020 /* Tx Underflow */ -#define DMA_INTR_ENA_OVE 0x00000010 /* Receive Overflow */ -#define DMA_INTR_ENA_TJE 0x00000008 /* Transmit Jabber */ -#define DMA_INTR_ENA_TSE 0x00000002 /* Transmit Stopped */ +#define DMA_INTR_ENA_AIE (_REGS->intr_ena->aie) +#define DMA_INTR_ENA_FBE 0x00002000 +#define DMA_INTR_ENA_ETE 0x00000400 +#define DMA_INTR_ENA_RWE 0x00000200 +#define DMA_INTR_ENA_RSE 0x00000100 +#define DMA_INTR_ENA_RUE 0x00000080 +#define DMA_INTR_ENA_UNE 0x00000020 +#define DMA_INTR_ENA_OVE 0x00000010 +#define DMA_INTR_ENA_TJE 0x00000008 +#define DMA_INTR_ENA_TSE 0x00000002 #define DMA_INTR_ABNORMAL (DMA_INTR_ENA_AIE | DMA_INTR_ENA_FBE | \ - DMA_INTR_ENA_UNE) + DMA_INTR_ENA_UNE) /* DMA default interrupt mask */ #define DMA_INTR_DEFAULT_MASK (DMA_INTR_NORMAL | DMA_INTR_ABNORMAL) @@ -100,58 +103,64 @@ #define DMA_INTR_DEFAULT_TX (DMA_INTR_ENA_TIE) /* DMA Status register defines */ -#define DMA_STATUS_GLPII 0x40000000 /* GMAC LPI interrupt */ -#define DMA_STATUS_GPI 0x10000000 /* PMT interrupt */ -#define DMA_STATUS_GMI 0x08000000 /* MMC interrupt */ -#define DMA_STATUS_GLI 0x04000000 /* GMAC Line interface int */ -#define DMA_STATUS_EB_MASK 0x00380000 /* Error Bits Mask */ -#define DMA_STATUS_EB_TX_ABORT 0x00080000 /* Error Bits - TX Abort */ -#define DMA_STATUS_EB_RX_ABORT 0x00100000 /* Error Bits - RX Abort */ -#define DMA_STATUS_TS_MASK 0x00700000 /* Transmit Process State */ -#define DMA_STATUS_TS_SHIFT 20 -#define DMA_STATUS_RS_MASK 0x000e0000 /* Receive Process State */ -#define DMA_STATUS_RS_SHIFT 17 -#define DMA_STATUS_NIS 0x00010000 /* Normal Interrupt Summary */ -#define DMA_STATUS_AIS 0x00008000 /* Abnormal Interrupt Summary */ -#define DMA_STATUS_ERI 0x00004000 /* Early Receive Interrupt */ -#define DMA_STATUS_FBI 0x00002000 /* Fatal Bus Error Interrupt */ -#define DMA_STATUS_ETI 0x00000400 /* Early Transmit Interrupt */ -#define DMA_STATUS_RWT 0x00000200 /* Receive Watchdog Timeout */ -#define DMA_STATUS_RPS 0x00000100 /* Receive Process Stopped */ -#define DMA_STATUS_RU 0x00000080 /* Receive Buffer Unavailable */ -#define DMA_STATUS_RI 0x00000040 /* Receive Interrupt */ -#define DMA_STATUS_UNF 0x00000020 /* Transmit Underflow */ -#define DMA_STATUS_OVF 0x00000010 /* Receive Overflow */ -#define DMA_STATUS_TJT 0x00000008 /* Transmit Jabber Timeout */ -#define DMA_STATUS_TU 0x00000004 /* Transmit Buffer Unavailable */ -#define DMA_STATUS_TPS 0x00000002 /* Transmit Process Stopped */ -#define DMA_STATUS_TI 0x00000001 /* Transmit Interrupt */ -#define DMA_CONTROL_FTF 0x00100000 /* Flush transmit FIFO */ - -#define DMA_STATUS_MSK_COMMON (DMA_STATUS_NIS | \ - DMA_STATUS_AIS | \ - DMA_STATUS_FBI) - -#define DMA_STATUS_MSK_RX (DMA_STATUS_ERI | \ - DMA_STATUS_RWT | \ - DMA_STATUS_RPS | \ - DMA_STATUS_RU | \ - DMA_STATUS_RI | \ - DMA_STATUS_OVF | \ - DMA_STATUS_MSK_COMMON) - -#define DMA_STATUS_MSK_TX (DMA_STATUS_ETI | \ - DMA_STATUS_UNF | \ - DMA_STATUS_TJT | \ - DMA_STATUS_TU | \ - DMA_STATUS_TPS | \ - DMA_STATUS_TI | \ - DMA_STATUS_MSK_COMMON) +#define DMA_STATUS_GLPII (_REGS->status->glpii) +#define DMA_STATUS_GPI 0x10000000 +#define DMA_STATUS_GMI 0x08000000 +#define DMA_STATUS_GLI 0x04000000 +#define DMA_STATUS_EB_MASK (_REGS->status->eb_mask) +#define DMA_STATUS_EB_TX_ABORT 0x00080000 +#define DMA_STATUS_EB_RX_ABORT 0x00100000 +#define DMA_STATUS_TS_MASK (_REGS->status->ts_mask) +#define DMA_STATUS_TS_SHIFT (_REGS->status->ts_shift) +#define DMA_STATUS_RS_MASK (_REGS->status->rs_mask) +#define DMA_STATUS_RS_SHIFT (_REGS->status->rs_shift) +#define DMA_STATUS_NIS (_REGS->status->nis) +#define DMA_STATUS_AIS (_REGS->status->ais) +#define DMA_STATUS_ERI 0x00004000 +#define DMA_STATUS_FBI (_REGS->status->fbi) +#define DMA_STATUS_ETI 0x00000400 +#define DMA_STATUS_RWT 0x00000200 +#define DMA_STATUS_RPS 0x00000100 +#define DMA_STATUS_RU 0x00000080 +#define DMA_STATUS_RI 0x00000040 +#define DMA_STATUS_UNF 0x00000020 +#define DMA_STATUS_OVF 0x00000010 +#define DMA_STATUS_TJT 0x00000008 +#define DMA_STATUS_TU 0x00000004 +#define DMA_STATUS_TPS 0x00000002 +#define DMA_STATUS_TI 0x00000001 + +#define DMA_STATUS_MSK_COMMON (DMA_STATUS_NIS | \ + DMA_STATUS_AIS | \ + DMA_STATUS_FBI) + +#define DMA_STATUS_MSK_RX (DMA_STATUS_ERI | \ + DMA_STATUS_RWT | \ + DMA_STATUS_RPS | \ + DMA_STATUS_RU | \ + DMA_STATUS_RI | \ + DMA_STATUS_OVF | \ + DMA_STATUS_MSK_COMMON) + +#define DMA_STATUS_MSK_TX (DMA_STATUS_ETI | \ + DMA_STATUS_UNF | \ + DMA_STATUS_TJT | \ + DMA_STATUS_TU | \ + DMA_STATUS_TPS | \ + DMA_STATUS_TI | \ + DMA_STATUS_MSK_COMMON) + +/* DMA Control register defines */ +#define DMA_CONTROL_ST 0x00002000 /* Start/Stop Transmission */ +#define DMA_CONTROL_SR 0x00000002 /* Start/Stop Receive */ +#define DMA_CONTROL_FTF 0x00100000 /* Flush transmit FIFO */ #define NUM_DWMAC100_DMA_REGS 9 #define NUM_DWMAC1000_DMA_REGS 23 #define NUM_DWMAC4_DMA_REGS 27 +extern const struct dwmac_regs dwmac_default_dma_regs; + void dwmac_enable_dma_transmission(struct stmmac_priv *priv, void __iomem *ioaddr, u32 chan); void dwmac_enable_dma_irq(struct stmmac_priv *priv, void __iomem *ioaddr, diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c b/drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c index 2dd457032187..266f64148c1a 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac_lib.c @@ -13,6 +13,47 @@ #define GMAC_HI_REG_AE 0x80000000 +static const struct dwmac_dma_addrs default_dma_addrs = { + .rcv_base_addr = 0x0000100c, + .tx_base_addr = 0x00001010, + .cur_tx_buf_addr = 0x00001050, + .cur_rx_buf_addr = 0x00001054 +}; + +static const struct dwmac_dma_axi default_dma_axi = { + .wr_osr_lmt = GENMASK(23, 20), + .wr_osr_lmt_shift = 20, + .wr_osr_lmt_mask = 0xf, + .rd_osr_lmt = GENMASK(19, 16), + .rd_osr_lmt_shift = 16, + .rd_osr_lmt_mask = 0xf, + .osr_max = 0xf +}; + +static const struct dwmac_dma_intr_ena default_dma_intr_ena = { + .nie = 0x00010000, + .aie = 0x00008000 +}; + +static const struct dwmac_dma_status default_dma_status = { + .glpii = 0x40000000, + .eb_mask = 0x00380000, + .ts_mask = 0x00700000, + .ts_shift = 20, + .rs_mask = 0x000e0000, + .rs_shift = 17, + .nis = 0x00010000, + .ais = 0x00008000, + .fbi = 0x00002000 +}; + +const struct dwmac_regs dwmac_default_dma_regs = { + .addrs = &default_dma_addrs, + .axi = &default_dma_axi, + .intr_ena = &default_dma_intr_ena, + .status = &default_dma_status +}; + int dwmac_dma_reset(void __iomem *ioaddr) { u32 value = readl(ioaddr + DMA_BUS_MODE); diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h index 225751a8fd8e..eafe85e45977 100644 --- a/include/linux/stmmac.h +++ b/include/linux/stmmac.h @@ -204,6 +204,53 @@ struct dwmac4_addrs { u32 mtl_low_cred_offset; }; +/* DMA addresses that may be customized by a platform */ +struct dwmac_dma_addrs { + u32 chan_offset; + u32 rcv_base_addr; + u32 tx_base_addr; + u32 cur_tx_buf_addr; + u32 cur_rx_buf_addr; +}; + +/* DMA AXI registers that may be customized by a platform */ +struct dwmac_dma_axi { + u32 wr_osr_lmt; + u32 wr_osr_lmt_shift; + u32 wr_osr_lmt_mask; + u32 rd_osr_lmt; + u32 rd_osr_lmt_shift; + u32 rd_osr_lmt_mask; + u32 osr_max; +}; + +/* DMA normal and abnormal interrupt that may be customized by a platform */ +struct dwmac_dma_intr_ena { + u32 nie; + u32 aie; +}; + +/* DMA Status register that may be customized by a platform */ +struct dwmac_dma_status { + u32 glpii; + u32 eb_mask; + u32 ts_mask; + u32 ts_shift; + u32 rs_mask; + u32 rs_shift; + u32 nis; + u32 ais; + u32 fbi; +}; + +/* Registers that may be customized by a platform */ +struct dwmac_regs { + const struct dwmac_dma_addrs *addrs; + const struct dwmac_dma_axi *axi; + const struct dwmac_dma_intr_ena *intr_ena; + const struct dwmac_dma_status *status; +}; + struct plat_stmmacenet_data { int bus_id; int phy_addr; @@ -293,5 +340,6 @@ struct plat_stmmacenet_data { bool sph_disable; bool serdes_up_after_phy_linkup; const struct dwmac4_addrs *dwmac4_addrs; + const struct dwmac_regs *dwmac_regs; }; #endif