From patchwork Wed Jan 11 10:46:11 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Romain Perier X-Patchwork-Id: 90884 Delivered-To: patch@linaro.org Received: by 10.140.20.99 with SMTP id 90csp1108986qgi; Wed, 11 Jan 2017 05:02:34 -0800 (PST) X-Received: by 10.194.80.162 with SMTP id s2mr4967103wjx.52.1484139754270; Wed, 11 Jan 2017 05:02:34 -0800 (PST) Return-Path: Received: from theia.denx.de (theia.denx.de. [85.214.87.163]) by mx.google.com with ESMTP id f81si15863869wmd.138.2017.01.11.05.02.34; Wed, 11 Jan 2017 05:02:34 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of u-boot-bounces@lists.denx.de designates 85.214.87.163 as permitted sender) client-ip=85.214.87.163; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of u-boot-bounces@lists.denx.de designates 85.214.87.163 as permitted sender) smtp.mailfrom=u-boot-bounces@lists.denx.de; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=collabora.com Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id 1D585B390D; Wed, 11 Jan 2017 14:02:27 +0100 (CET) Received: from theia.denx.de ([127.0.0.1]) by localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id 0mia8RCG64jC; Wed, 11 Jan 2017 14:02:26 +0100 (CET) Received: from theia.denx.de (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id BA74DB3921; Wed, 11 Jan 2017 14:02:04 +0100 (CET) Received: from localhost (localhost [127.0.0.1]) by theia.denx.de (Postfix) with ESMTP id BD76BA75F5 for ; Wed, 11 Jan 2017 11:55:45 +0100 (CET) Received: from theia.denx.de ([127.0.0.1]) by localhost (theia.denx.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id Zm8TIlbVg7JD for ; Wed, 11 Jan 2017 11:55:45 +0100 (CET) X-policyd-weight: NOT_IN_SBL_XBL_SPAMHAUS=-1.5 NOT_IN_SPAMCOP=-1.5 NOT_IN_BL_NJABL=-1.5 (only DNSBL check requested) Received: from bhuna.collabora.co.uk (bhuna.collabora.co.uk [46.235.227.227]) by theia.denx.de (Postfix) with ESMTPS id 84A5BA75E9 for ; Wed, 11 Jan 2017 11:55:45 +0100 (CET) Received: from [127.0.0.1] (localhost [127.0.0.1]) (Authenticated sender: rperier) with ESMTPSA id 8D0D9269791 From: Romain Perier To: Simon Glass Date: Wed, 11 Jan 2017 11:46:11 +0100 Message-Id: <20170111104617.29915-6-romain.perier@collabora.com> X-Mailer: git-send-email 2.9.3 In-Reply-To: <20170111104617.29915-1-romain.perier@collabora.com> References: <20170111104617.29915-1-romain.perier@collabora.com> X-Mailman-Approved-At: Wed, 11 Jan 2017 14:01:51 +0100 Cc: Romain Perier , u-boot@lists.denx.de Subject: [U-Boot] [PATCH v7 05/11] net: gmac_rockchip: Add Rockchip GMAC driver X-BeenThere: u-boot@lists.denx.de X-Mailman-Version: 2.1.15 Precedence: list List-Id: U-Boot discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: u-boot-bounces@lists.denx.de Sender: "U-Boot" From: Sjoerd Simons Add a new driver for the GMAC ethernet interface present in Rockchip RK3288 SOCs. This driver subclasses the generic design-ware driver to add the glue needed specifically for Rockchip. Signed-off-by: Sjoerd Simons Signed-off-by: Simon Glass Signed-off-by: Romain Perier Acked-by: Joe Hershberger --- Changes in v7: None Changes in v6: - Changed Acked-by to Signed-off-by for Romain Changes in v5: - Rename the driver to gmac_rockchip as suggested by David Wu - Rewrote commit message (gmac_rk3288 -> gmac_rockchip) - Added Acked-by for Romain Changes in v4: None Changes in v3: - Add comments for struct gmac_rk3288_platdata - Adjust binding to use r/tx-delay instead of r/tx_delay - Sort includes - Use debug() instead of printf() for error - Use function calls instead of fix_mac_speed() hook - Use new clk interface drivers/net/Kconfig | 7 ++ drivers/net/Makefile | 1 + drivers/net/gmac_rockchip.c | 154 ++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 162 insertions(+) create mode 100644 drivers/net/gmac_rockchip.c -- 2.9.3 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig index 929b9e2..f52629f 100644 --- a/drivers/net/Kconfig +++ b/drivers/net/Kconfig @@ -215,4 +215,11 @@ config PIC32_ETH This driver implements 10/100 Mbps Ethernet and MAC layer for Microchip PIC32 microcontrollers. +config GMAC_ROCKCHIP + bool "Rockchip Synopsys Designware Ethernet MAC" + depends on DM_ETH && ETH_DESIGNWARE + help + This driver provides Rockchip SoCs network support based on the + Synopsys Designware driver. + endif # NETDEVICES diff --git a/drivers/net/Makefile b/drivers/net/Makefile index 9a7bfc6..2493a48 100644 --- a/drivers/net/Makefile +++ b/drivers/net/Makefile @@ -34,6 +34,7 @@ obj-$(CONFIG_FTGMAC100) += ftgmac100.o obj-$(CONFIG_FTMAC110) += ftmac110.o obj-$(CONFIG_FTMAC100) += ftmac100.o obj-$(CONFIG_GRETH) += greth.o +obj-$(CONFIG_GMAC_ROCKCHIP) += gmac_rockchip.o obj-$(CONFIG_DRIVER_TI_KEYSTONE_NET) += keystone_net.o obj-$(CONFIG_KS8851_MLL) += ks8851_mll.o obj-$(CONFIG_LAN91C96) += lan91c96.o diff --git a/drivers/net/gmac_rockchip.c b/drivers/net/gmac_rockchip.c new file mode 100644 index 0000000..5f833fa --- /dev/null +++ b/drivers/net/gmac_rockchip.c @@ -0,0 +1,154 @@ +/* + * (C) Copyright 2015 Sjoerd Simons + * + * SPDX-License-Identifier: GPL-2.0+ + * + * Rockchip GMAC ethernet IP driver for U-Boot + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include "designware.h" + +DECLARE_GLOBAL_DATA_PTR; + +/* + * Platform data for the gmac + * + * dw_eth_pdata: Required platform data for designware driver (must be first) + */ +struct gmac_rockchip_platdata { + struct dw_eth_pdata dw_eth_pdata; + int tx_delay; + int rx_delay; +}; + +static int gmac_rockchip_ofdata_to_platdata(struct udevice *dev) +{ + struct gmac_rockchip_platdata *pdata = dev_get_platdata(dev); + + pdata->tx_delay = fdtdec_get_int(gd->fdt_blob, dev->of_offset, + "tx-delay", 0x30); + pdata->rx_delay = fdtdec_get_int(gd->fdt_blob, dev->of_offset, + "rx-delay", 0x10); + + return designware_eth_ofdata_to_platdata(dev); +} + +static int gmac_rockchip_fix_mac_speed(struct dw_eth_dev *priv) +{ + struct rk3288_grf *grf; + int clk; + + switch (priv->phydev->speed) { + case 10: + clk = GMAC_CLK_SEL_2_5M; + break; + case 100: + clk = GMAC_CLK_SEL_25M; + break; + case 1000: + clk = GMAC_CLK_SEL_125M; + break; + default: + debug("Unknown phy speed: %d\n", priv->phydev->speed); + return -EINVAL; + } + + grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF); + rk_clrsetreg(&grf->soc_con1, + GMAC_CLK_SEL_MASK << GMAC_CLK_SEL_SHIFT, + clk << GMAC_CLK_SEL_SHIFT); + + return 0; +} + +static int gmac_rockchip_probe(struct udevice *dev) +{ + struct gmac_rockchip_platdata *pdata = dev_get_platdata(dev); + struct rk3288_grf *grf; + struct clk clk; + int ret; + + ret = clk_get_by_index(dev, 0, &clk); + if (ret) + return ret; + + /* Since mac_clk is fed by an external clock we can use 0 here */ + ret = clk_set_rate(&clk, 0); + if (ret) + return ret; + + /* Set to RGMII mode */ + grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF); + rk_clrsetreg(&grf->soc_con1, + RMII_MODE_MASK << RMII_MODE_SHIFT | + GMAC_PHY_INTF_SEL_MASK << GMAC_PHY_INTF_SEL_SHIFT, + GMAC_PHY_INTF_SEL_RGMII << GMAC_PHY_INTF_SEL_SHIFT); + + rk_clrsetreg(&grf->soc_con3, + RXCLK_DLY_ENA_GMAC_MASK << RXCLK_DLY_ENA_GMAC_SHIFT | + TXCLK_DLY_ENA_GMAC_MASK << TXCLK_DLY_ENA_GMAC_SHIFT | + CLK_RX_DL_CFG_GMAC_MASK << CLK_RX_DL_CFG_GMAC_SHIFT | + CLK_TX_DL_CFG_GMAC_MASK << CLK_TX_DL_CFG_GMAC_SHIFT, + RXCLK_DLY_ENA_GMAC_ENABLE << RXCLK_DLY_ENA_GMAC_SHIFT | + TXCLK_DLY_ENA_GMAC_ENABLE << TXCLK_DLY_ENA_GMAC_SHIFT | + pdata->rx_delay << CLK_RX_DL_CFG_GMAC_SHIFT | + pdata->tx_delay << CLK_TX_DL_CFG_GMAC_SHIFT); + + return designware_eth_probe(dev); +} + +static int gmac_rockchip_eth_start(struct udevice *dev) +{ + struct eth_pdata *pdata = dev_get_platdata(dev); + struct dw_eth_dev *priv = dev_get_priv(dev); + int ret; + + ret = designware_eth_init(priv, pdata->enetaddr); + if (ret) + return ret; + ret = gmac_rockchip_fix_mac_speed(priv); + if (ret) + return ret; + ret = designware_eth_enable(priv); + if (ret) + return ret; + + return 0; +} + +const struct eth_ops gmac_rockchip_eth_ops = { + .start = gmac_rockchip_eth_start, + .send = designware_eth_send, + .recv = designware_eth_recv, + .free_pkt = designware_eth_free_pkt, + .stop = designware_eth_stop, + .write_hwaddr = designware_eth_write_hwaddr, +}; + +static const struct udevice_id rockchip_gmac_ids[] = { + { .compatible = "rockchip,rk3288-gmac" }, + { } +}; + +U_BOOT_DRIVER(eth_gmac_rockchip) = { + .name = "gmac_rockchip", + .id = UCLASS_ETH, + .of_match = rockchip_gmac_ids, + .ofdata_to_platdata = gmac_rockchip_ofdata_to_platdata, + .probe = gmac_rockchip_probe, + .ops = &gmac_rockchip_eth_ops, + .priv_auto_alloc_size = sizeof(struct dw_eth_dev), + .platdata_auto_alloc_size = sizeof(struct gmac_rockchip_platdata), + .flags = DM_FLAG_ALLOC_PRIV_DMA, +};