Às 4:31 PM de 1/4/2017, Niklas Cassel escreveu: > I think you accidentally removed the Reviewed-by from Lars.
I took it off because the driver was changed after the first review (v1->v2). Lars, could you please confirm that everything is fine for you? Thanks. > > On 01/04/2017 05:22 PM, Joao Pinto wrote: >> This patch adds a new glue driver called dwmac-dwc-qos-eth which >> was based in the dwc_eth_qos as is. To assure retro-compatibility a slight >> tweak was also added to stmmac_platform. >> >> Signed-off-by: Joao Pinto <jpi...@synopsys.com> >> --- >> changes v2 -> v3: >> - Nothing changed, just to keep up patch set version >> changes v1 -> v2: >> - WOL was not declared in the new glue driver >> - clocks were switched and now fixed (apb_pclk and phy_ref_clk) >> >> .../bindings/net/snps,dwc-qos-ethernet.txt | 3 + >> drivers/net/ethernet/stmicro/stmmac/Kconfig | 9 + >> drivers/net/ethernet/stmicro/stmmac/Makefile | 1 + >> .../ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c | 200 >> +++++++++++++++++++++ >> .../net/ethernet/stmicro/stmmac/stmmac_platform.c | 15 +- >> 5 files changed, 225 insertions(+), 3 deletions(-) >> create mode 100644 drivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c >> >> diff --git a/Documentation/devicetree/bindings/net/snps,dwc-qos-ethernet.txt >> b/Documentation/devicetree/bindings/net/snps,dwc-qos-ethernet.txt >> index d93f71c..21d27aa 100644 >> --- a/Documentation/devicetree/bindings/net/snps,dwc-qos-ethernet.txt >> +++ b/Documentation/devicetree/bindings/net/snps,dwc-qos-ethernet.txt >> @@ -1,5 +1,8 @@ >> * Synopsys DWC Ethernet QoS IP version 4.10 driver (GMAC) >> >> +This binding is deprecated, but it continues to be supported, but new >> +features should be preferably added to the stmmac binding document. >> + >> This binding supports the Synopsys Designware Ethernet QoS (Quality Of >> Service) >> IP block. The IP supports multiple options for bus type, clocking and reset >> structure, and feature list. Consequently, a number of properties and list >> diff --git a/drivers/net/ethernet/stmicro/stmmac/Kconfig >> b/drivers/net/ethernet/stmicro/stmmac/Kconfig >> index ab66248..99594e3 100644 >> --- a/drivers/net/ethernet/stmicro/stmmac/Kconfig >> +++ b/drivers/net/ethernet/stmicro/stmmac/Kconfig >> @@ -29,6 +29,15 @@ config STMMAC_PLATFORM >> >> if STMMAC_PLATFORM >> >> +config DWMAC_DWC_QOS_ETH >> + tristate "Support for snps,dwc-qos-ethernet.txt DT binding." >> + select PHYLIB >> + select CRC32 >> + select MII >> + depends on OF && HAS_DMA >> + help >> + Support for chips using the snps,dwc-qos-ethernet.txt DT binding. >> + >> config DWMAC_GENERIC >> tristate "Generic driver for DWMAC" >> default STMMAC_PLATFORM >> diff --git a/drivers/net/ethernet/stmicro/stmmac/Makefile >> b/drivers/net/ethernet/stmicro/stmmac/Makefile >> index 8f83a86..700c603 100644 >> --- a/drivers/net/ethernet/stmicro/stmmac/Makefile >> +++ b/drivers/net/ethernet/stmicro/stmmac/Makefile >> @@ -16,6 +16,7 @@ obj-$(CONFIG_DWMAC_SOCFPGA) += dwmac-altr-socfpga.o >> obj-$(CONFIG_DWMAC_STI) += dwmac-sti.o >> obj-$(CONFIG_DWMAC_STM32) += dwmac-stm32.o >> obj-$(CONFIG_DWMAC_SUNXI) += dwmac-sunxi.o >> +obj-$(CONFIG_DWMAC_DWC_QOS_ETH) += dwmac-dwc-qos-eth.o >> obj-$(CONFIG_DWMAC_GENERIC) += dwmac-generic.o >> stmmac-platform-objs:= stmmac_platform.o >> dwmac-altr-socfpga-objs := altr_tse_pcs.o dwmac-socfpga.o >> diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c >> b/drivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c >> new file mode 100644 >> index 0000000..4532a7c >> --- /dev/null >> +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-dwc-qos-eth.c >> @@ -0,0 +1,200 @@ >> +/* >> + * Synopsys DWC Ethernet Quality-of-Service v4.10a linux driver >> + * >> + * Copyright (C) 2016 Joao Pinto <jpi...@synopsys.com> >> + * >> + * This program is free software; you can redistribute it and/or modify >> + * it under the terms of the GNU General Public License version 2 as >> + * published by the Free Software Foundation. >> + * >> + * You should have received a copy of the GNU General Public License >> + * along with this program. If not, see >> <https://urldefense.proofpoint.com/v2/url?u=http-3A__www.gnu.org_licenses_&d=DgIC-g&c=DPL6_X_6JkXFx7AXWqB0tg&r=s2fO0hii0OGNOv9qQy_HRXy-xAJUD1NNoEcc3io_kx0&m=jmoFmglB-YKlIAGvraqqQjZI2mrDkiGUcJ1ThAvxT28&s=iOOZn_X7Atdgfy9ybDRxGhRY08ZpsS1_Z-Q_OHPiSnE&e= >> >. >> + */ >> + >> +#include <linux/clk.h> >> +#include <linux/clk-provider.h> >> +#include <linux/device.h> >> +#include <linux/ethtool.h> >> +#include <linux/io.h> >> +#include <linux/ioport.h> >> +#include <linux/module.h> >> +#include <linux/of_net.h> >> +#include <linux/mfd/syscon.h> >> +#include <linux/platform_device.h> >> +#include <linux/stmmac.h> >> + >> +#include "stmmac_platform.h" >> + >> +static int dwc_eth_dwmac_config_dt(struct platform_device *pdev, >> + struct plat_stmmacenet_data *plat_dat) >> +{ >> + struct device_node *np = pdev->dev.of_node; >> + u32 burst_map = 0; >> + u32 bit_index = 0; >> + u32 a_index = 0; >> + >> + if (!plat_dat->axi) { >> + plat_dat->axi = kzalloc(sizeof(struct stmmac_axi), GFP_KERNEL); >> + >> + if (!plat_dat->axi) >> + return -ENOMEM; >> + } >> + >> + plat_dat->axi->axi_lpi_en = of_property_read_bool(np, "snps,en-lpi"); >> + if (of_property_read_u32(np, "snps,write-requests", >> + &plat_dat->axi->axi_wr_osr_lmt)) { >> + /** >> + * Since the register has a reset value of 1, if property >> + * is missing, default to 1. >> + */ >> + plat_dat->axi->axi_wr_osr_lmt = 1; >> + } else { >> + /** >> + * If property exists, to keep the behavior from dwc_eth_qos, >> + * subtract one after parsing. >> + */ >> + plat_dat->axi->axi_wr_osr_lmt--; >> + } >> + >> + if (of_property_read_u32(np, "read,read-requests", >> + &plat_dat->axi->axi_rd_osr_lmt)) { >> + /** >> + * Since the register has a reset value of 1, if property >> + * is missing, default to 1. >> + */ >> + plat_dat->axi->axi_rd_osr_lmt = 1; >> + } else { >> + /** >> + * If property exists, to keep the behavior from dwc_eth_qos, >> + * subtract one after parsing. >> + */ >> + plat_dat->axi->axi_rd_osr_lmt--; >> + } >> + of_property_read_u32(np, "snps,burst-map", &burst_map); >> + >> + /* converts burst-map bitmask to burst array */ >> + for (bit_index = 0; bit_index < 7; bit_index++) { >> + if (burst_map & (1 << bit_index)) { >> + switch (bit_index) { >> + case 0: >> + plat_dat->axi->axi_blen[a_index] = 4; break; >> + case 1: >> + plat_dat->axi->axi_blen[a_index] = 8; break; >> + case 2: >> + plat_dat->axi->axi_blen[a_index] = 16; break; >> + case 3: >> + plat_dat->axi->axi_blen[a_index] = 32; break; >> + case 4: >> + plat_dat->axi->axi_blen[a_index] = 64; break; >> + case 5: >> + plat_dat->axi->axi_blen[a_index] = 128; break; >> + case 6: >> + plat_dat->axi->axi_blen[a_index] = 256; break; >> + default: >> + break; >> + } >> + a_index++; >> + } >> + } >> + >> + /* dwc-qos needs GMAC4, AAL, TSO and PMT */ >> + plat_dat->has_gmac4 = 1; >> + plat_dat->dma_cfg->aal = 1; >> + plat_dat->tso_en = 1; >> + plat_dat->pmt = 1; >> + >> + return 0; >> +} >> + >> +static int dwc_eth_dwmac_probe(struct platform_device *pdev) >> +{ >> + struct plat_stmmacenet_data *plat_dat; >> + struct stmmac_resources stmmac_res; >> + struct resource *res; >> + int ret; >> + >> + /** >> + * Since stmmac_platform supports name IRQ only, basic platform >> + * resource initialization is done in the glue logic. >> + */ >> + stmmac_res.irq = platform_get_irq(pdev, 0); >> + if (stmmac_res.irq < 0) { >> + if (stmmac_res.irq != -EPROBE_DEFER) { >> + dev_err(&pdev->dev, >> + "IRQ configuration information not found\n"); >> + } >> + return stmmac_res.irq; >> + } >> + stmmac_res.wol_irq = stmmac_res.irq; >> + >> + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); >> + stmmac_res.addr = devm_ioremap_resource(&pdev->dev, res); >> + if (IS_ERR(stmmac_res.addr)) >> + return PTR_ERR(stmmac_res.addr); >> + >> + plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac); >> + if (IS_ERR(plat_dat)) >> + return PTR_ERR(plat_dat); >> + >> + plat_dat->stmmac_clk = devm_clk_get(&pdev->dev, "apb_pclk"); >> + if (IS_ERR(plat_dat->stmmac_clk)) { >> + dev_err(&pdev->dev, "apb_pclk clock not found.\n"); >> + ret = PTR_ERR(plat_dat->stmmac_clk); >> + plat_dat->stmmac_clk = NULL; >> + goto err_remove_config_dt; >> + } >> + clk_prepare_enable(plat_dat->stmmac_clk); >> + >> + plat_dat->pclk = devm_clk_get(&pdev->dev, "phy_ref_clk"); >> + if (IS_ERR(plat_dat->pclk)) { >> + dev_err(&pdev->dev, "phy_ref_clk clock not found.\n"); >> + ret = PTR_ERR(plat_dat->pclk); >> + plat_dat->pclk = NULL; >> + goto err_out_clk_dis_phy; >> + } >> + clk_prepare_enable(plat_dat->pclk); >> + >> + ret = dwc_eth_dwmac_config_dt(pdev, plat_dat); >> + if (ret) >> + goto err_out_clk_dis_aper; >> + >> + ret = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res); >> + if (ret) >> + goto err_out_clk_dis_aper; >> + >> + return 0; >> + >> +err_out_clk_dis_aper: >> + clk_disable_unprepare(plat_dat->pclk); >> +err_out_clk_dis_phy: >> + clk_disable_unprepare(plat_dat->stmmac_clk); >> +err_remove_config_dt: >> + stmmac_remove_config_dt(pdev, plat_dat); >> + >> + return ret; >> +} >> + >> +static int dwc_eth_dwmac_remove(struct platform_device *pdev) >> +{ >> + return stmmac_pltfr_remove(pdev); >> +} >> + >> +static const struct of_device_id dwc_eth_dwmac_match[] = { >> + { .compatible = "snps,dwc-qos-ethernet-4.10", }, >> + { } >> +}; >> +MODULE_DEVICE_TABLE(of, dwc_eth_dwmac_match); >> + >> +static struct platform_driver dwc_eth_dwmac_driver = { >> + .probe = dwc_eth_dwmac_probe, >> + .remove = dwc_eth_dwmac_remove, >> + .driver = { >> + .name = "dwc-eth-dwmac", >> + .of_match_table = dwc_eth_dwmac_match, >> + }, >> +}; >> +module_platform_driver(dwc_eth_dwmac_driver); >> + >> +MODULE_AUTHOR("Joao Pinto <jpi...@synopsys.com>"); >> +MODULE_DESCRIPTION("Synopsys DWC Ethernet Quality-of-Service v4.10a >> driver"); >> +MODULE_LICENSE("GPL v2"); >> diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c >> b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c >> index 4e44f9c..00c0f8d 100644 >> --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c >> +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_platform.c >> @@ -181,10 +181,19 @@ static int stmmac_dt_phy(struct plat_stmmacenet_data >> *plat, >> mdio = false; >> } >> >> - /* If snps,dwmac-mdio is passed from DT, always register the MDIO */ >> - for_each_child_of_node(np, plat->mdio_node) { >> - if (of_device_is_compatible(plat->mdio_node, "snps,dwmac-mdio")) >> + /* exception for dwmac-dwc-qos-eth glue logic */ >> + if (of_device_is_compatible(np, "snps,dwc-qos-ethernet-4.10")) { >> + plat->mdio_node = of_get_child_by_name(np, "mdio"); >> + } else { >> + /** >> + * If snps,dwmac-mdio is passed from DT, always register >> + * the MDIO >> + */ >> + for_each_child_of_node(np, plat->mdio_node) { >> + if (of_device_is_compatible(plat->mdio_node, >> + "snps,dwmac-mdio")) >> break; >> + } >> } >> >> if (plat->mdio_node) { >
