From efed421a94e62a7ddbc76acba4312b70e4be958f Mon Sep 17 00:00:00 2001 From: Ashwini Pahuja Date: Thu, 13 Nov 2014 10:22:32 -0800 Subject: usb: gadget: Add UDC driver for Broadcom USB3.0 device controller IP BDC This patch adds a UDC driver for Broadcom's USB3.0 Peripheral core named BDC. BDC supports control traffic on ep0 and bulk/Int/Isoch traffic on all other endpoints. [ balbi@ti.com : fix build error on randconfig due to lack of ] Signed-off-by: Ashwini Pahuja Signed-off-by: Felipe Balbi --- drivers/usb/gadget/udc/bdc/bdc_dbg.c | 123 +++++++++++++++++++++++++++++++++++ 1 file changed, 123 insertions(+) create mode 100644 drivers/usb/gadget/udc/bdc/bdc_dbg.c (limited to 'drivers/usb/gadget/udc/bdc/bdc_dbg.c') diff --git a/drivers/usb/gadget/udc/bdc/bdc_dbg.c b/drivers/usb/gadget/udc/bdc/bdc_dbg.c new file mode 100644 index 000000000000..5945dbc47825 --- /dev/null +++ b/drivers/usb/gadget/udc/bdc/bdc_dbg.c @@ -0,0 +1,123 @@ +/* + * bdc_dbg.c - BRCM BDC USB3.0 device controller debug functions + * + * Copyright (C) 2014 Broadcom Corporation + * + * Author: Ashwini Pahuja + * + * 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. + * + */ + +#include "bdc.h" +#include "bdc_dbg.h" + +void bdc_dbg_regs(struct bdc *bdc) +{ + u32 temp; + + dev_vdbg(bdc->dev, "bdc->regs:%p\n", bdc->regs); + temp = bdc_readl(bdc->regs, BDC_BDCCFG0); + dev_vdbg(bdc->dev, "bdccfg0:0x%08x\n", temp); + temp = bdc_readl(bdc->regs, BDC_BDCCFG1); + dev_vdbg(bdc->dev, "bdccfg1:0x%08x\n", temp); + temp = bdc_readl(bdc->regs, BDC_BDCCAP0); + dev_vdbg(bdc->dev, "bdccap0:0x%08x\n", temp); + temp = bdc_readl(bdc->regs, BDC_BDCCAP1); + dev_vdbg(bdc->dev, "bdccap1:0x%08x\n", temp); + temp = bdc_readl(bdc->regs, BDC_USPC); + dev_vdbg(bdc->dev, "uspc:0x%08x\n", temp); + temp = bdc_readl(bdc->regs, BDC_DVCSA); + dev_vdbg(bdc->dev, "dvcsa:0x%08x\n", temp); + temp = bdc_readl(bdc->regs, BDC_DVCSB); + dev_vdbg(bdc->dev, "dvcsb:0x%x08\n", temp); +} + +void bdc_dump_epsts(struct bdc *bdc) +{ + u32 temp; + + temp = bdc_readl(bdc->regs, BDC_EPSTS0(0)); + dev_vdbg(bdc->dev, "BDC_EPSTS0:0x%08x\n", temp); + + temp = bdc_readl(bdc->regs, BDC_EPSTS1(0)); + dev_vdbg(bdc->dev, "BDC_EPSTS1:0x%x\n", temp); + + temp = bdc_readl(bdc->regs, BDC_EPSTS2(0)); + dev_vdbg(bdc->dev, "BDC_EPSTS2:0x%08x\n", temp); + + temp = bdc_readl(bdc->regs, BDC_EPSTS3(0)); + dev_vdbg(bdc->dev, "BDC_EPSTS3:0x%08x\n", temp); + + temp = bdc_readl(bdc->regs, BDC_EPSTS4(0)); + dev_vdbg(bdc->dev, "BDC_EPSTS4:0x%08x\n", temp); + + temp = bdc_readl(bdc->regs, BDC_EPSTS5(0)); + dev_vdbg(bdc->dev, "BDC_EPSTS5:0x%08x\n", temp); + + temp = bdc_readl(bdc->regs, BDC_EPSTS6(0)); + dev_vdbg(bdc->dev, "BDC_EPSTS6:0x%08x\n", temp); + + temp = bdc_readl(bdc->regs, BDC_EPSTS7(0)); + dev_vdbg(bdc->dev, "BDC_EPSTS7:0x%08x\n", temp); +} + +void bdc_dbg_srr(struct bdc *bdc, u32 srr_num) +{ + struct bdc_sr *sr; + dma_addr_t addr; + int i; + + sr = bdc->srr.sr_bds; + addr = bdc->srr.dma_addr; + dev_vdbg(bdc->dev, "bdc_dbg_srr sr:%p dqp_index:%d\n", + sr, bdc->srr.dqp_index); + for (i = 0; i < NUM_SR_ENTRIES; i++) { + sr = &bdc->srr.sr_bds[i]; + dev_vdbg(bdc->dev, "%llx %08x %08x %08x %08x\n", + (unsigned long long)addr, + le32_to_cpu(sr->offset[0]), + le32_to_cpu(sr->offset[1]), + le32_to_cpu(sr->offset[2]), + le32_to_cpu(sr->offset[3])); + addr += sizeof(*sr); + } +} + +void bdc_dbg_bd_list(struct bdc *bdc, struct bdc_ep *ep) +{ + struct bd_list *bd_list = &ep->bd_list; + struct bd_table *bd_table; + struct bdc_bd *bd; + int tbi, bdi, gbdi; + dma_addr_t dma; + + gbdi = 0; + dev_vdbg(bdc->dev, + "Dump bd list for %s epnum:%d\n", + ep->name, ep->ep_num); + + dev_vdbg(bdc->dev, + "tabs:%d max_bdi:%d eqp_bdi:%d hwd_bdi:%d num_bds_table:%d\n", + bd_list->num_tabs, bd_list->max_bdi, bd_list->eqp_bdi, + bd_list->hwd_bdi, bd_list->num_bds_table); + + for (tbi = 0; tbi < bd_list->num_tabs; tbi++) { + bd_table = bd_list->bd_table_array[tbi]; + for (bdi = 0; bdi < bd_list->num_bds_table; bdi++) { + bd = bd_table->start_bd + bdi; + dma = bd_table->dma + (sizeof(struct bdc_bd) * bdi); + dev_vdbg(bdc->dev, + "tbi:%2d bdi:%2d gbdi:%2d virt:%p phys:%llx %08x %08x %08x %08x\n", + tbi, bdi, gbdi++, bd, (unsigned long long)dma, + le32_to_cpu(bd->offset[0]), + le32_to_cpu(bd->offset[1]), + le32_to_cpu(bd->offset[2]), + le32_to_cpu(bd->offset[3])); + } + dev_vdbg(bdc->dev, "\n\n"); + } +} -- cgit v1.2.1