diff options
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 78 |
1 files changed, 56 insertions, 22 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c index 195669f550f0..1c8d84ed8410 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c @@ -1,17 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * dwmac-sun8i.c - Allwinner sun8i DWMAC specific glue layer * * Copyright (C) 2017 Corentin Labbe <clabbe.montjoie@gmail.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/clk.h> @@ -147,6 +138,20 @@ static const struct emac_variant emac_variant_a64 = { .tx_delay_max = 7, }; +static const struct emac_variant emac_variant_h6 = { + .default_syscon_value = 0x50000, + .syscon_field = &sun8i_syscon_reg_field, + /* The "Internal PHY" of H6 is not on the die. It's on the + * co-packaged AC200 chip instead. + */ + .soc_has_internal_phy = false, + .support_mii = true, + .support_rmii = true, + .support_rgmii = true, + .rx_delay_max = 31, + .tx_delay_max = 7, +}; + #define EMAC_BASIC_CTL0 0x00 #define EMAC_BASIC_CTL1 0x04 #define EMAC_INT_STA 0x08 @@ -187,7 +192,7 @@ static const struct emac_variant emac_variant_a64 = { /* Used in RX_CTL1*/ #define EMAC_RX_MD BIT(1) -#define EMAC_RX_TH_MASK GENMASK(4, 5) +#define EMAC_RX_TH_MASK GENMASK(5, 4) #define EMAC_RX_TH_32 0 #define EMAC_RX_TH_64 (0x1 << 4) #define EMAC_RX_TH_96 (0x2 << 4) @@ -198,7 +203,7 @@ static const struct emac_variant emac_variant_a64 = { /* Used in TX_CTL1*/ #define EMAC_TX_MD BIT(1) #define EMAC_TX_NEXT_FRM BIT(2) -#define EMAC_TX_TH_MASK GENMASK(8, 10) +#define EMAC_TX_TH_MASK GENMASK(10, 8) #define EMAC_TX_TH_64 0 #define EMAC_TX_TH_128 (0x1 << 8) #define EMAC_TX_TH_192 (0x2 << 8) @@ -284,18 +289,18 @@ static void sun8i_dwmac_dma_init(void __iomem *ioaddr, static void sun8i_dwmac_dma_init_rx(void __iomem *ioaddr, struct stmmac_dma_cfg *dma_cfg, - u32 dma_rx_phy, u32 chan) + dma_addr_t dma_rx_phy, u32 chan) { /* Write RX descriptors address */ - writel(dma_rx_phy, ioaddr + EMAC_RX_DESC_LIST); + writel(lower_32_bits(dma_rx_phy), ioaddr + EMAC_RX_DESC_LIST); } static void sun8i_dwmac_dma_init_tx(void __iomem *ioaddr, struct stmmac_dma_cfg *dma_cfg, - u32 dma_tx_phy, u32 chan) + dma_addr_t dma_tx_phy, u32 chan) { /* Write TX descriptors address */ - writel(dma_tx_phy, ioaddr + EMAC_TX_DESC_LIST); + writel(lower_32_bits(dma_tx_phy), ioaddr + EMAC_TX_DESC_LIST); } /* sun8i_dwmac_dump_regs() - Dump EMAC address space @@ -646,7 +651,8 @@ static void sun8i_dwmac_set_filter(struct mac_device_info *hw, } } } else { - netdev_info(dev, "Too many address, switching to promiscuous\n"); + if (!(readl(ioaddr + EMAC_RX_FRM_FLT) & EMAC_FRM_FLT_RXALL)) + netdev_info(dev, "Too many address, switching to promiscuous\n"); v = EMAC_FRM_FLT_RXALL; } @@ -868,7 +874,12 @@ static int sun8i_dwmac_set_syscon(struct stmmac_priv *priv) int ret; u32 reg, val; - regmap_field_read(gmac->regmap_field, &val); + ret = regmap_field_read(gmac->regmap_field, &val); + if (ret) { + dev_err(priv->device, "Fail to read from regmap field.\n"); + return ret; + } + reg = gmac->variant->default_syscon_value; if (reg != val) dev_warn(priv->device, @@ -893,6 +904,11 @@ static int sun8i_dwmac_set_syscon(struct stmmac_priv *priv) * address. No need to mask it again. */ reg |= 1 << H3_EPHY_ADDR_SHIFT; + } else { + /* For SoCs without internal PHY the PHY selection bit should be + * set to 0 (external PHY). + */ + reg &= ~H3_EPHY_SELECT; } if (!of_property_read_u32(node, "allwinner,tx-delay-ps", &val)) { @@ -986,6 +1002,18 @@ static void sun8i_dwmac_exit(struct platform_device *pdev, void *priv) regulator_disable(gmac->regulator); } +static void sun8i_dwmac_set_mac_loopback(void __iomem *ioaddr, bool enable) +{ + u32 value = readl(ioaddr + EMAC_BASIC_CTL0); + + if (enable) + value |= EMAC_LOOPBACK; + else + value &= ~EMAC_LOOPBACK; + + writel(value, ioaddr + EMAC_BASIC_CTL0); +} + static const struct stmmac_ops sun8i_dwmac_ops = { .core_init = sun8i_dwmac_core_init, .set_mac = sun8i_dwmac_set_mac, @@ -995,6 +1023,7 @@ static const struct stmmac_ops sun8i_dwmac_ops = { .flow_ctrl = sun8i_dwmac_flow_ctrl, .set_umac_addr = sun8i_dwmac_set_umac_addr, .get_umac_addr = sun8i_dwmac_get_umac_addr, + .set_mac_loopback = sun8i_dwmac_set_mac_loopback, }; static struct mac_device_info *sun8i_dwmac_setup(void *ppriv) @@ -1015,6 +1044,8 @@ static struct mac_device_info *sun8i_dwmac_setup(void *ppriv) mac->mac = &sun8i_dwmac_ops; mac->dma = &sun8i_dwmac_dma_ops; + priv->dev->priv_flags |= IFF_UNICAST_FLT; + /* The loopback bit seems to be re-set when link change * Simply mask it each time * Speed 10/100/1000 are set in BIT(2)/BIT(3) @@ -1074,6 +1105,7 @@ static int sun8i_dwmac_probe(struct platform_device *pdev) struct stmmac_resources stmmac_res; struct sunxi_priv_data *gmac; struct device *dev = &pdev->dev; + phy_interface_t interface; int ret; struct stmmac_priv *priv; struct net_device *ndev; @@ -1147,10 +1179,10 @@ static int sun8i_dwmac_probe(struct platform_device *pdev) return ret; } - ret = of_get_phy_mode(dev->of_node); - if (ret < 0) + ret = of_get_phy_mode(dev->of_node, &interface); + if (ret) return -EINVAL; - plat_dat->interface = ret; + plat_dat->interface = interface; /* platform data specifying hardware features and callbacks. * hardware features were copied from Allwinner drivers. @@ -1195,7 +1227,7 @@ static int sun8i_dwmac_probe(struct platform_device *pdev) dwmac_mux: sun8i_dwmac_unset_syscon(gmac); dwmac_exit: - sun8i_dwmac_exit(pdev, plat_dat->bsp_priv); + stmmac_pltfr_remove(pdev); return ret; } @@ -1210,6 +1242,8 @@ static const struct of_device_id sun8i_dwmac_match[] = { .data = &emac_variant_r40 }, { .compatible = "allwinner,sun50i-a64-emac", .data = &emac_variant_a64 }, + { .compatible = "allwinner,sun50i-h6-emac", + .data = &emac_variant_h6 }, { } }; MODULE_DEVICE_TABLE(of, sun8i_dwmac_match); |
