/* * Ingenic JZ4740 "glue layer" * * Copyright (C) 2013, Apelete Seketeli * * 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. * * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 675 Mass Ave, Cambridge, MA 02139, USA. */ #include #include #include #include #include #include #include #include "musb_core.h" struct jz4740_glue { struct device *dev; struct platform_device *musb; struct clk *clk; }; static irqreturn_t jz4740_musb_interrupt(int irq, void *__hci) { unsigned long flags; irqreturn_t retval = IRQ_NONE; struct musb *musb = __hci; spin_lock_irqsave(&musb->lock, flags); musb->int_usb = musb_readb(musb->mregs, MUSB_INTRUSB); musb->int_tx = musb_readw(musb->mregs, MUSB_INTRTX); musb->int_rx = musb_readw(musb->mregs, MUSB_INTRRX); /* * The controller is gadget only, the state of the host mode IRQ bits is * undefined. Mask them to make sure that the musb driver core will * never see them set */ musb->int_usb &= MUSB_INTR_SUSPEND | MUSB_INTR_RESUME | MUSB_INTR_RESET | MUSB_INTR_SOF; if (musb->int_usb || musb->int_tx || musb->int_rx) retval = musb_interrupt(musb); spin_unlock_irqrestore(&musb->lock, flags); return retval; } static struct musb_fifo_cfg jz4740_musb_fifo_cfg[] = { { .hw_ep_num = 1, .style = FIFO_TX, .maxpacket = 512, }, { .hw_ep_num = 1, .style = FIFO_RX, .maxpacket = 512, }, { .hw_ep_num = 2, .style = FIFO_TX, .maxpacket = 64, }, }; static struct musb_hdrc_config jz4740_musb_config = { /* Silicon does not implement USB OTG. */ .multipoint = 0, /* Max EPs scanned, driver will decide which EP can be used. */ .num_eps = 4, /* RAMbits needed to configure EPs from table */ .ram_bits = 9, .fifo_cfg = jz4740_musb_fifo_cfg, .fifo_cfg_size = ARRAY_SIZE(jz4740_musb_fifo_cfg), }; static struct musb_hdrc_platform_data jz4740_musb_platform_data = { .mode = MUSB_PERIPHERAL, .config = &jz4740_musb_config, }; static int jz4740_musb_init(struct musb *musb) { usb_phy_generic_register(); musb->xceiv = usb_get_phy(USB_PHY_TYPE_USB2); if (IS_ERR(musb->xceiv)) { pr_err("HS UDC: no transceiver configured\n"); return PTR_ERR(musb->xceiv); } /* Silicon does not implement ConfigData register. * Set dyn_fifo to avoid reading EP config from hardware. */ musb->dyn_fifo = true; musb->isr = jz4740_musb_interrupt; return 0; } static int jz4740_musb_exit(struct musb *musb) { usb_put_phy(musb->xceiv); return 0; } /* * DMA has not been confirmed to work with CONFIG_USB_INVENTRA_DMA, * so let's not set up the dma function pointers yet. */ static const struct musb_platform_ops jz4740_musb_ops = { .quirks = MUSB_DMA_INVENTRA | MUSB_INDEXED_EP, .fifo_mode = 2, .init = jz4740_musb_init, .exit = jz4740_musb_exit, }; static int jz4740_probe(struct platform_device *pdev) { struct musb_hdrc_platform_data *pdata = &jz4740_musb_platform_data; struct platform_device *musb; struct jz4740_glue *glue; struct clk *clk; int ret; glue = devm_kzalloc(&pdev->dev, sizeof(*glue), GFP_KERNEL); if (!glue) return -ENOMEM; musb = platform_device_alloc("musb-hdrc", PLATFORM_DEVID_AUTO); if (!musb) { dev_err(&pdev->dev, "failed to allocate musb device\n"); return -ENOMEM; } clk = devm_clk_get(&pdev->dev, "udc"); if (IS_ERR(clk)) { dev_err(&pdev->dev, "failed to get clock\n"); ret = PTR_ERR(clk); goto err_platform_device_put; } ret = clk_prepare_enable(clk); if (ret) { dev_err(&pdev->dev, "failed to enable clock\n"); goto err_platform_device_put; } musb->dev.parent = &pdev->dev; glue->dev = &pdev->dev; glue->musb = musb; glue->clk = clk; pdata->platform_ops = &jz4740_musb_ops; platform_set_drvdata(pdev, glue); ret = platform_device_add_resources(musb, pdev->resource, pdev->num_resources); if (ret) { dev_err(&pdev->dev, "failed to add resources\n"); goto err_clk_disable; } ret = platform_device_add_data(musb, pdata, sizeof(*pdata)); if (ret) { dev_err(&pdev->dev, "failed to add platform_data\n"); goto err_clk_disable; } ret = platform_device_add(musb); if (ret) { dev_err(&pdev->dev, "failed to register musb device\n"); goto err_clk_disable; } return 0; err_clk_disable: clk_disable_unprepare(clk); err_platform_device_put: platform_device_put(musb); return ret; } static int jz4740_remove(struct platform_device *pdev) { struct jz4740_glue *glue = platform_get_drvdata(pdev); platform_device_unregister(glue->musb); usb_phy_generic_unregister(pdev); clk_disable_unprepare(glue->clk); return 0; } static struct platform_driver jz4740_driver = { .probe = jz4740_probe, .remove = jz4740_remove, .driver = { .name = "musb-jz4740", }, }; MODULE_DESCRIPTION("JZ4740 MUSB Glue Layer"); MODULE_AUTHOR("Apelete Seketeli "); MODULE_LICENSE("GPL v2"); module_platform_driver(jz4740_driver); 2017-02-01 11:52:27 -0800 commit6d04dfc8966019b8b0977b2cb942351f13d2b178 (patch) tree2d4f239c1daff620704b77a992c1e70ce1ce6b08 /drivers/usb/isp1760/Kconfig parent2883aaea363f7a897ff06d2e6c73ae7aae285bcb (diff)parent06425c308b92eaf60767bc71d359f4cbc7a561f8 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller: 1) Fix handling of interrupt status in stmmac driver. Just because we have masked the event from generating interrupts, doesn't mean the bit won't still be set in the interrupt status register. From Alexey Brodkin. 2) Fix DMA API debugging splats in gianfar driver, from Arseny Solokha. 3) Fix off-by-one error in __ip6_append_data(), from Vlad Yasevich. 4) cls_flow does not match on icmpv6 codes properly, from Simon Horman. 5) Initial MAC address can be set incorrectly in some scenerios, from Ivan Vecera. 6) Packet header pointer arithmetic fix in ip6_tnl_parse_tlv_end_lim(), from Dan Carpenter. 7) Fix divide by zero in __tcp_select_window(), from Eric Dumazet. 8) Fix crash in iwlwifi when unregistering thermal zone, from Jens Axboe. 9) Check for DMA mapping errors in starfire driver, from Alexey Khoroshilov. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (31 commits) tcp: fix 0 divide in __tcp_select_window() ipv6: pointer math error in ip6_tnl_parse_tlv_enc_lim() net: fix ndo_features_check/ndo_fix_features comment ordering net/sched: matchall: Fix configuration race be2net: fix initial MAC setting ipv6: fix flow labels when the traffic class is non-0 net: thunderx: avoid dereferencing xcv when NULL net/sched: cls_flower: Correct matching on ICMPv6 code ipv6: Paritially checksum full MTU frames net/mlx4_core: Avoid command timeouts during VF driver device shutdown gianfar: synchronize DMA API usage by free_skb_rx_queue w/ gfar_new_page net: ethtool: add support for 2500BaseT and 5000BaseT link modes can: bcm: fix hrtimer/tasklet termination in bcm op removal net: adaptec: starfire: add checks for dma mapping errors net: phy: micrel: KSZ8795 do not set SUPPORTED_[Asym_]Pause can: Fix kernel panic at security_sock_rcv_skb net: macb: Fix 64 bit addressing support for GEM stmmac: Discard masked flags in interrupt status register net/mlx5e: Check ets capability before ets query FW command net/mlx5e: Fix update of hash function/key via ethtool ...
Diffstat (limited to 'drivers/usb/isp1760/Kconfig')