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Support external DMA mode and provide an interface for DMA address configuration

This commit is contained in:
hikaru 2015-05-01 06:58:40 +00:00
parent 38c1b17ca1
commit e427b2e5a6
2 changed files with 23 additions and 9 deletions
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29
sys/external/bsd/dwc2/dist/dwc2_core.c vendored
View File

@ -1,4 +1,4 @@
/* $NetBSD: dwc2_core.c,v 1.6 2014/04/03 06:34:58 skrll Exp $ */
/* $NetBSD: dwc2_core.c,v 1.7 2015/05/01 06:58:40 hikaru Exp $ */
/*
* core.c - DesignWare HS OTG Controller common routines
@ -43,7 +43,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: dwc2_core.c,v 1.6 2014/04/03 06:34:58 skrll Exp $");
__KERNEL_RCSID(0, "$NetBSD: dwc2_core.c,v 1.7 2015/05/01 06:58:40 hikaru Exp $");
#include <sys/types.h>
#include <sys/bus.h>
@ -312,8 +312,13 @@ static int dwc2_gahbcfg_init(struct dwc2_hsotg *hsotg)
switch (hsotg->hw_params.arch) {
case GHWCFG2_EXT_DMA_ARCH:
dev_err(hsotg->dev, "External DMA Mode not supported\n");
return -EINVAL;
dev_dbg(hsotg->dev, "External DMA Mode\n");
if (hsotg->core_params->ahbcfg != -1) {
ahbcfg &= GAHBCFG_CTRL_MASK;
ahbcfg |= hsotg->core_params->ahbcfg &
~GAHBCFG_CTRL_MASK;
}
break;
case GHWCFG2_INT_DMA_ARCH:
dev_dbg(hsotg->dev, "Internal DMA Mode\n");
@ -1396,10 +1401,18 @@ void dwc2_hc_start_transfer(struct dwc2_hsotg *hsotg,
} else {
dma_addr = chan->xfer_dma;
}
DWC2_WRITE_4(hsotg, HCDMA(chan->hc_num), (u32)dma_addr);
if (dbg_hc(chan))
dev_vdbg(hsotg->dev, "Wrote %08lx to HCDMA(%d)\n",
(unsigned long)dma_addr, chan->hc_num);
if (hsotg->hsotg_sc->sc_set_dma_addr == NULL) {
DWC2_WRITE_4(hsotg, HCDMA(chan->hc_num),
(u32)dma_addr);
if (dbg_hc(chan))
dev_vdbg(hsotg->dev,
"Wrote %08lx to HCDMA(%d)\n",
(unsigned long)dma_addr,
chan->hc_num);
} else {
(void)(*hsotg->hsotg_sc->sc_set_dma_addr)(
hsotg->dev, dma_addr, chan->hc_num);
}
}
/* Start the split */

3
sys/external/bsd/dwc2/dwc2var.h vendored
View File

@ -1,4 +1,4 @@
/* $NetBSD: dwc2var.h,v 1.3 2013/10/22 12:57:40 skrll Exp $ */
/* $NetBSD: dwc2var.h,v 1.4 2015/05/01 06:58:40 hikaru Exp $ */
/*-
* Copyright (c) 2013 The NetBSD Foundation, Inc.
@ -77,6 +77,7 @@ typedef struct dwc2_softc {
bus_space_handle_t sc_ioh;
bus_dma_tag_t sc_dmat;
struct dwc2_core_params *sc_params;
int (*sc_set_dma_addr)(device_t, bus_addr_t, int);
/*
* Private