Date: Thu, 21 Jun 2018 19:16:15 +0200 From: Emmanuel Vadot <manu@bidouilliste.com> To: Ilya Bakulin <kibab@FreeBSD.org> Cc: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: Re: svn commit: r335476 - in head/sys: arm/allwinner conf Message-ID: <20180621191615.a407caac02bd671c267f40aa@bidouilliste.com> In-Reply-To: <201806211149.w5LBnLl9061185@repo.freebsd.org> References: <201806211149.w5LBnLl9061185@repo.freebsd.org>
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On Thu, 21 Jun 2018 11:49:21 +0000 (UTC) Ilya Bakulin <kibab@FreeBSD.org> wrote: > Author: kibab > Date: Thu Jun 21 11:49:21 2018 > New Revision: 335476 > URL: https://svnweb.freebsd.org/changeset/base/335476 > > Log: > Add MMCCAM support to AllWinner MMC driver > > Using MMCCAM on AllWinner boards is now possible, reaching highest > possible data transfer speed. > > For now, MMCCAM doesn't scan cards on boot. This means that scanning > has to be done manually and that it's not possible to mount root FS > from MMC/SD card since there is no block device at the boot time. > > For manually scanning the cards, run: > # camcontrol rescan X:0:0 > Where X is the bus number (look at camcontrol devlist to determine > bus number assigned to the MMC controller). > > Reviewed by: manu No, as I said in the review I haven't reviewed it since I know nothing about CAM. > Approved by: imp (mentor) > Differential Revision: https://reviews.freebsd.org/D15891 > > Modified: > head/sys/arm/allwinner/aw_mmc.c > head/sys/arm/allwinner/files.allwinner > head/sys/conf/files.arm64 > > Modified: head/sys/arm/allwinner/aw_mmc.c > ============================================================================== > --- head/sys/arm/allwinner/aw_mmc.c Thu Jun 21 11:43:54 2018 (r335475) > +++ head/sys/arm/allwinner/aw_mmc.c Thu Jun 21 11:49:21 2018 (r335476) > @@ -55,6 +55,16 @@ __FBSDID("$FreeBSD$"); > #include <dev/extres/hwreset/hwreset.h> > #include <dev/extres/regulator/regulator.h> > > +#include "opt_mmccam.h" > + > +#ifdef MMCCAM > +#include <cam/cam.h> > +#include <cam/cam_ccb.h> > +#include <cam/cam_debug.h> > +#include <cam/cam_sim.h> > +#include <cam/cam_xpt_sim.h> > +#endif > + > #define AW_MMC_MEMRES 0 > #define AW_MMC_IRQRES 1 > #define AW_MMC_RESSZ 2 > @@ -112,7 +122,14 @@ struct aw_mmc_softc { > int aw_timeout; > struct callout aw_timeoutc; > struct mmc_host aw_host; > +#ifdef MMCCAM > + union ccb * ccb; > + struct cam_devq * devq; > + struct cam_sim * sim; > + struct mtx sim_mtx; > +#else > struct mmc_request * aw_req; > +#endif > struct mtx aw_mtx; > struct resource * aw_res[AW_MMC_RESSZ]; > struct aw_mmc_conf * aw_mmc_conf; > @@ -148,11 +165,19 @@ static int aw_mmc_init(struct aw_mmc_softc *); > static void aw_mmc_intr(void *); > static int aw_mmc_update_clock(struct aw_mmc_softc *, uint32_t); > > +static void aw_mmc_print_error(uint32_t); > static int aw_mmc_update_ios(device_t, device_t); > static int aw_mmc_request(device_t, device_t, struct mmc_request *); > static int aw_mmc_get_ro(device_t, device_t); > static int aw_mmc_acquire_host(device_t, device_t); > static int aw_mmc_release_host(device_t, device_t); > +#ifdef MMCCAM > +static void aw_mmc_cam_action(struct cam_sim *, union ccb *); > +static void aw_mmc_cam_poll(struct cam_sim *); > +static int aw_mmc_cam_settran_settings(struct aw_mmc_softc *, union ccb *); > +static int aw_mmc_cam_request(struct aw_mmc_softc *, union ccb *); > +static void aw_mmc_cam_handle_mmcio(struct cam_sim *, union ccb *); > +#endif > > #define AW_MMC_LOCK(_sc) mtx_lock(&(_sc)->aw_mtx) > #define AW_MMC_UNLOCK(_sc) mtx_unlock(&(_sc)->aw_mtx) > @@ -161,7 +186,201 @@ static int aw_mmc_release_host(device_t, device_t); > #define AW_MMC_WRITE_4(_sc, _reg, _value) \ > bus_write_4((_sc)->aw_res[AW_MMC_MEMRES], _reg, _value) > > +#ifdef MMCCAM > +static void > +aw_mmc_cam_handle_mmcio(struct cam_sim *sim, union ccb *ccb) > +{ > + struct aw_mmc_softc *sc; > + > + sc = cam_sim_softc(sim); > + > + aw_mmc_cam_request(sc, ccb); > +} > + > +static void > +aw_mmc_cam_action(struct cam_sim *sim, union ccb *ccb) > +{ > + struct aw_mmc_softc *sc; > + > + sc = cam_sim_softc(sim); > + if (sc == NULL) { > + ccb->ccb_h.status = CAM_SEL_TIMEOUT; > + xpt_done(ccb); > + return; > + } > + > + mtx_assert(&sc->sim_mtx, MA_OWNED); > + > + switch (ccb->ccb_h.func_code) { > + case XPT_PATH_INQ: > + { > + struct ccb_pathinq *cpi; > + > + cpi = &ccb->cpi; > + cpi->version_num = 1; > + cpi->hba_inquiry = 0; > + cpi->target_sprt = 0; > + cpi->hba_misc = PIM_NOBUSRESET | PIM_SEQSCAN; > + cpi->hba_eng_cnt = 0; > + cpi->max_target = 0; > + cpi->max_lun = 0; > + cpi->initiator_id = 1; > + cpi->maxio = (sc->aw_mmc_conf->dma_xferlen * > + AW_MMC_DMA_SEGS) / MMC_SECTOR_SIZE; > + strncpy(cpi->sim_vid, "FreeBSD", SIM_IDLEN); > + strncpy(cpi->hba_vid, "Deglitch Networks", HBA_IDLEN); > + strncpy(cpi->dev_name, cam_sim_name(sim), DEV_IDLEN); > + cpi->unit_number = cam_sim_unit(sim); > + cpi->bus_id = cam_sim_bus(sim); > + cpi->protocol = PROTO_MMCSD; > + cpi->protocol_version = SCSI_REV_0; > + cpi->transport = XPORT_MMCSD; > + cpi->transport_version = 1; > + > + cpi->ccb_h.status = CAM_REQ_CMP; > + break; > + } > + case XPT_GET_TRAN_SETTINGS: > + { > + struct ccb_trans_settings *cts = &ccb->cts; > + > + if (bootverbose) > + device_printf(sc->aw_dev, "Got XPT_GET_TRAN_SETTINGS\n"); > + > + cts->protocol = PROTO_MMCSD; > + cts->protocol_version = 1; > + cts->transport = XPORT_MMCSD; > + cts->transport_version = 1; > + cts->xport_specific.valid = 0; > + cts->proto_specific.mmc.host_ocr = sc->aw_host.host_ocr; > + cts->proto_specific.mmc.host_f_min = sc->aw_host.f_min; > + cts->proto_specific.mmc.host_f_max = sc->aw_host.f_max; > + cts->proto_specific.mmc.host_caps = sc->aw_host.caps; > + memcpy(&cts->proto_specific.mmc.ios, &sc->aw_host.ios, sizeof(struct mmc_ios)); > + ccb->ccb_h.status = CAM_REQ_CMP; > + break; > + } > + case XPT_SET_TRAN_SETTINGS: > + { > + if (bootverbose) > + device_printf(sc->aw_dev, "Got XPT_SET_TRAN_SETTINGS\n"); > + aw_mmc_cam_settran_settings(sc, ccb); > + ccb->ccb_h.status = CAM_REQ_CMP; > + break; > + } > + case XPT_RESET_BUS: > + if (bootverbose) > + device_printf(sc->aw_dev, "Got XPT_RESET_BUS, ACK it...\n"); > + ccb->ccb_h.status = CAM_REQ_CMP; > + break; > + case XPT_MMC_IO: > + /* > + * Here is the HW-dependent part of > + * sending the command to the underlying h/w > + * At some point in the future an interrupt comes. > + * Then the request will be marked as completed. > + */ > + ccb->ccb_h.status = CAM_REQ_INPROG; > + > + aw_mmc_cam_handle_mmcio(sim, ccb); > + return; > + /* NOTREACHED */ > + break; > + default: > + ccb->ccb_h.status = CAM_REQ_INVALID; > + break; > + } > + xpt_done(ccb); > + return; > +} > + > +static void > +aw_mmc_cam_poll(struct cam_sim *sim) > +{ > + return; > +} > + > static int > +aw_mmc_cam_settran_settings(struct aw_mmc_softc *sc, union ccb *ccb) > +{ > + struct mmc_ios *ios; > + struct mmc_ios *new_ios; > + struct ccb_trans_settings_mmc *cts; > + > + ios = &sc->aw_host.ios; > + > + cts = &ccb->cts.proto_specific.mmc; > + new_ios = &cts->ios; > + > + /* Update only requested fields */ > + if (cts->ios_valid & MMC_CLK) { > + ios->clock = new_ios->clock; > + device_printf(sc->aw_dev, "Clock => %d\n", ios->clock); > + } > + if (cts->ios_valid & MMC_VDD) { > + ios->vdd = new_ios->vdd; > + device_printf(sc->aw_dev, "VDD => %d\n", ios->vdd); > + } > + if (cts->ios_valid & MMC_CS) { > + ios->chip_select = new_ios->chip_select; > + device_printf(sc->aw_dev, "CS => %d\n", ios->chip_select); > + } > + if (cts->ios_valid & MMC_BW) { > + ios->bus_width = new_ios->bus_width; > + device_printf(sc->aw_dev, "Bus width => %d\n", ios->bus_width); > + } > + if (cts->ios_valid & MMC_PM) { > + ios->power_mode = new_ios->power_mode; > + device_printf(sc->aw_dev, "Power mode => %d\n", ios->power_mode); > + } > + if (cts->ios_valid & MMC_BT) { > + ios->timing = new_ios->timing; > + device_printf(sc->aw_dev, "Timing => %d\n", ios->timing); > + } > + if (cts->ios_valid & MMC_BM) { > + ios->bus_mode = new_ios->bus_mode; > + device_printf(sc->aw_dev, "Bus mode => %d\n", ios->bus_mode); > + } > + > + return (aw_mmc_update_ios(sc->aw_dev, NULL)); > +} > + > +static int > +aw_mmc_cam_request(struct aw_mmc_softc *sc, union ccb *ccb) > +{ > + struct ccb_mmcio *mmcio; > + > + mmcio = &ccb->mmcio; > + > + AW_MMC_LOCK(sc); > + > +#ifdef DEBUG > + if (__predict_false(bootverbose)) { > + device_printf(sc->aw_dev, "CMD%u arg %#x flags %#x dlen %u dflags %#x\n", > + mmcio->cmd.opcode, mmcio->cmd.arg, mmcio->cmd.flags, > + mmcio->cmd.data != NULL ? (unsigned int) mmcio->cmd.data->len : 0, > + mmcio->cmd.data != NULL ? mmcio->cmd.data->flags: 0); > + } > +#endif > + if (mmcio->cmd.data != NULL) { > + if (mmcio->cmd.data->len == 0 || mmcio->cmd.data->flags == 0) > + panic("data->len = %d, data->flags = %d -- something is b0rked", > + (int)mmcio->cmd.data->len, mmcio->cmd.data->flags); > + } > + if (sc->ccb != NULL) { > + device_printf(sc->aw_dev, "Controller still has an active command\n"); Should be under a ifdef DEBUG > + return (EBUSY); > + } > + sc->ccb = ccb; > + /* aw_mmc_request locks again */ > + AW_MMC_UNLOCK(sc); > + aw_mmc_request(sc->aw_dev, NULL, NULL); > + > + return (0); > +} > +#endif /* MMCCAM */ > + > +static int > aw_mmc_probe(device_t dev) > { > > @@ -192,7 +411,9 @@ aw_mmc_attach(device_t dev) > > sc->aw_mmc_conf = (struct aw_mmc_conf *)ofw_bus_search_compatible(dev, compat_data)->ocd_data; > > +#ifndef MMCCAM > sc->aw_req = NULL; > +#endif > if (bus_alloc_resources(dev, aw_mmc_res_spec, sc->aw_res) != 0) { > device_printf(dev, "cannot allocate device resources\n"); > return (ENXIO); > @@ -295,6 +516,35 @@ aw_mmc_attach(device_t dev) > if (bus_width >= 8) > sc->aw_host.caps |= MMC_CAP_8_BIT_DATA; > > +#ifdef MMCCAM > + child = NULL; /* Not used by MMCCAM, need to silence compiler warnings */ > + sc->ccb = NULL; > + if ((sc->devq = cam_simq_alloc(1)) == NULL) { > + goto fail; > + } > + > + mtx_init(&sc->sim_mtx, "awmmcsim", NULL, MTX_DEF); > + sc->sim = cam_sim_alloc(aw_mmc_cam_action, aw_mmc_cam_poll, > + "aw_mmc_sim", sc, device_get_unit(dev), > + &sc->sim_mtx, 1, 1, sc->devq); > + > + if (sc->sim == NULL) { > + cam_simq_free(sc->devq); > + device_printf(dev, "cannot allocate CAM SIM\n"); > + goto fail; > + } > + > + mtx_lock(&sc->sim_mtx); > + if (xpt_bus_register(sc->sim, sc->aw_dev, 0) != 0) { > + device_printf(dev, "cannot register SCSI pass-through bus\n"); > + cam_sim_free(sc->sim, FALSE); > + cam_simq_free(sc->devq); > + mtx_unlock(&sc->sim_mtx); > + goto fail; > + } > + > + mtx_unlock(&sc->sim_mtx); > +#else /* !MMCCAM */ > child = device_add_child(dev, "mmc", -1); > if (child == NULL) { > device_printf(dev, "attaching MMC bus failed!\n"); > @@ -305,7 +555,7 @@ aw_mmc_attach(device_t dev) > device_delete_child(dev, child); > goto fail; > } > - > +#endif /* MMCCAM */ > return (0); > > fail: > @@ -314,6 +564,17 @@ fail: > bus_teardown_intr(dev, sc->aw_res[AW_MMC_IRQRES], sc->aw_intrhand); > bus_release_resources(dev, aw_mmc_res_spec, sc->aw_res); > > +#ifdef MMCCAM > + if (sc->sim != NULL) { > + mtx_lock(&sc->sim_mtx); > + xpt_bus_deregister(cam_sim_path(sc->sim)); > + cam_sim_free(sc->sim, FALSE); > + mtx_unlock(&sc->sim_mtx); > + } > + > + if (sc->devq != NULL) > + cam_simq_free(sc->devq); > +#endif > return (ENXIO); > } > > @@ -437,7 +698,11 @@ aw_mmc_prepare_dma(struct aw_mmc_softc *sc) > struct mmc_command *cmd; > uint32_t val; > > +#ifdef MMCCAM > + cmd = &sc->ccb->mmcio.cmd; > +#else > cmd = sc->aw_req->cmd; > +#endif > if (cmd->data->len > (sc->aw_mmc_conf->dma_xferlen * AW_MMC_DMA_SEGS)) > return (EFBIG); > error = bus_dmamap_load(sc->aw_dma_buf_tag, sc->aw_dma_buf_map, > @@ -549,11 +814,25 @@ static void > aw_mmc_req_done(struct aw_mmc_softc *sc) > { > struct mmc_command *cmd; > +#ifdef MMCCAM > + union ccb *ccb; > +#else > struct mmc_request *req; > +#endif > uint32_t val, mask; > int retry; > > +#ifdef MMCCAM > + ccb = sc->ccb; > + cmd = &ccb->mmcio.cmd; > +#else > cmd = sc->aw_req->cmd; > +#endif > +#ifdef DEBUG > + if (bootverbose) { > + device_printf(sc->aw_dev, "%s: cmd %d err %d\n", __func__, cmd->opcode, cmd->error); > + } > +#endif > if (cmd->error != MMC_ERR_NONE) { > /* Reset the FIFO and DMA engines. */ > mask = AW_MMC_GCTL_FIFO_RST | AW_MMC_GCTL_DMA_RST; > @@ -573,14 +852,21 @@ aw_mmc_req_done(struct aw_mmc_softc *sc) > aw_mmc_update_clock(sc, 1); > } > > - req = sc->aw_req; > callout_stop(&sc->aw_timeoutc); > - sc->aw_req = NULL; > sc->aw_intr = 0; > sc->aw_resid = 0; > sc->aw_dma_map_err = 0; > sc->aw_intr_wait = 0; > +#ifdef MMCCAM > + sc->ccb = NULL; > + ccb->ccb_h.status = > + (ccb->mmcio.cmd.error == 0 ? CAM_REQ_CMP : CAM_REQ_CMP_ERR); > + xpt_done(ccb); > +#else > + req = sc->aw_req; > + sc->aw_req = NULL; > req->done(req); > +#endif > } > > static void > @@ -597,7 +883,11 @@ aw_mmc_req_ok(struct aw_mmc_softc *sc) > break; > DELAY(1000); > } > +#ifdef MMCCAM > + cmd = &sc->ccb->mmcio.cmd; > +#else > cmd = sc->aw_req->cmd; > +#endif > if (timeout == 0) { > cmd->error = MMC_ERR_FAILED; > aw_mmc_req_done(sc); > @@ -618,15 +908,30 @@ aw_mmc_req_ok(struct aw_mmc_softc *sc) > aw_mmc_req_done(sc); > } > > + > +static inline void > +set_mmc_error(struct aw_mmc_softc *sc, int error_code) > +{ > +#ifdef MMCCAM > + sc->ccb->mmcio.cmd.error = error_code; > +#else > + sc->aw_req->cmd->error = error_code; > +#endif > +} > + > static void > aw_mmc_timeout(void *arg) > { > struct aw_mmc_softc *sc; > > sc = (struct aw_mmc_softc *)arg; > +#ifdef MMCCAM > + if (sc->ccb != NULL) { > +#else > if (sc->aw_req != NULL) { > +#endif > device_printf(sc->aw_dev, "controller timeout\n"); > - sc->aw_req->cmd->error = MMC_ERR_TIMEOUT; > + set_mmc_error(sc, MMC_ERR_TIMEOUT); > aw_mmc_req_done(sc); > } else > device_printf(sc->aw_dev, > @@ -634,6 +939,28 @@ aw_mmc_timeout(void *arg) > } > > static void > +aw_mmc_print_error(uint32_t err) > +{ > + if(err & AW_MMC_INT_RESP_ERR) > + printf("AW_MMC_INT_RESP_ERR "); > + if (err & AW_MMC_INT_RESP_CRC_ERR) > + printf("AW_MMC_INT_RESP_CRC_ERR "); > + if (err & AW_MMC_INT_DATA_CRC_ERR) > + printf("AW_MMC_INT_DATA_CRC_ERR "); > + if (err & AW_MMC_INT_RESP_TIMEOUT) > + printf("AW_MMC_INT_RESP_TIMEOUT "); > + if (err & AW_MMC_INT_FIFO_RUN_ERR) > + printf("AW_MMC_INT_FIFO_RUN_ERR "); > + if (err & AW_MMC_INT_CMD_BUSY) > + printf("AW_MMC_INT_CMD_BUSY "); > + if (err & AW_MMC_INT_DATA_START_ERR) > + printf("AW_MMC_INT_DATA_START_ERR "); > + if (err & AW_MMC_INT_DATA_END_BIT_ERR) > + printf("AW_MMC_INT_DATA_END_BIT_ERR"); > + printf("\n"); > +} > + > +static void > aw_mmc_intr(void *arg) > { > bus_dmasync_op_t sync_op; > @@ -654,31 +981,41 @@ aw_mmc_intr(void *arg) > device_printf(sc->aw_dev, "idst: %#x, imask: %#x, rint: %#x\n", > idst, imask, rint); > #endif > +#ifdef MMCCAM > + if (sc->ccb == NULL) { > +#else > if (sc->aw_req == NULL) { > +#endif > device_printf(sc->aw_dev, > "Spurious interrupt - no active request, rint: 0x%08X\n", > rint); > + aw_mmc_print_error(rint); > goto end; > } > if (rint & AW_MMC_INT_ERR_BIT) { > if (bootverbose) > device_printf(sc->aw_dev, "error rint: 0x%08X\n", rint); > + aw_mmc_print_error(rint); > if (rint & AW_MMC_INT_RESP_TIMEOUT) > - sc->aw_req->cmd->error = MMC_ERR_TIMEOUT; > + set_mmc_error(sc, MMC_ERR_TIMEOUT); > else > - sc->aw_req->cmd->error = MMC_ERR_FAILED; > + set_mmc_error(sc, MMC_ERR_FAILED); > aw_mmc_req_done(sc); > goto end; > } > if (idst & AW_MMC_IDST_ERROR) { > device_printf(sc->aw_dev, "error idst: 0x%08x\n", idst); > - sc->aw_req->cmd->error = MMC_ERR_FAILED; > + set_mmc_error(sc, MMC_ERR_FAILED); > aw_mmc_req_done(sc); > goto end; > } > > sc->aw_intr |= rint; > +#ifdef MMCCAM > + data = sc->ccb->mmcio.cmd.data; > +#else > data = sc->aw_req->cmd->data; > +#endif > if (data != NULL && (idst & AW_MMC_IDST_COMPLETE) != 0) { > if (data->flags & MMC_DATA_WRITE) > sync_op = BUS_DMASYNC_POSTWRITE; > @@ -712,13 +1049,29 @@ aw_mmc_request(device_t bus, device_t child, struct mm > sc = device_get_softc(bus); > > AW_MMC_LOCK(sc); > +#ifdef MMCCAM > + KASSERT(req == NULL, ("req should be NULL in MMCCAM case!")); > + /* > + * For MMCCAM, sc->ccb has been NULL-checked and populated > + * by aw_mmc_cam_request() already. > + */ > + cmd = &sc->ccb->mmcio.cmd; > +#else > if (sc->aw_req) { > AW_MMC_UNLOCK(sc); > return (EBUSY); > } > - > sc->aw_req = req; > cmd = req->cmd; > + > +#ifdef DEBUG > + if (bootverbose) > + device_printf(sc->aw_dev, "CMD%u arg %#x flags %#x dlen %u dflags %#x\n", > + cmd->opcode, cmd->arg, cmd->flags, > + cmd->data != NULL ? (unsigned int)cmd->data->len : 0, > + cmd->data != NULL ? cmd->data->flags: 0); > +#endif > +#endif > cmdreg = AW_MMC_CMDR_LOAD; > imask = AW_MMC_INT_ERR_BIT; > sc->aw_intr_wait = 0; > @@ -1163,4 +1516,6 @@ static driver_t aw_mmc_driver = { > > DRIVER_MODULE(aw_mmc, simplebus, aw_mmc_driver, aw_mmc_devclass, NULL, > NULL); > +#ifndef MMCCAM > MMC_DECLARE_BRIDGE(aw_mmc); > +#endif > > Modified: head/sys/arm/allwinner/files.allwinner > ============================================================================== > --- head/sys/arm/allwinner/files.allwinner Thu Jun 21 11:43:54 2018 (r335475) > +++ head/sys/arm/allwinner/files.allwinner Thu Jun 21 11:49:21 2018 (r335476) > @@ -10,7 +10,7 @@ arm/allwinner/a10_sramc.c standard > arm/allwinner/aw_gpio.c optional gpio > arm/allwinner/aw_if_dwc.c optional dwc > arm/allwinner/aw_machdep.c standard > -arm/allwinner/aw_mmc.c optional mmc > +arm/allwinner/aw_mmc.c optional mmc | mmccam > arm/allwinner/aw_mp.c optional smp > arm/allwinner/aw_nmi.c optional intrng > arm/allwinner/aw_rsb.c optional rsb | p2wi > > Modified: head/sys/conf/files.arm64 > ============================================================================== > --- head/sys/conf/files.arm64 Thu Jun 21 11:43:54 2018 (r335475) > +++ head/sys/conf/files.arm64 Thu Jun 21 11:49:21 2018 (r335476) > @@ -27,7 +27,7 @@ cloudabi64_vdso_blob.o optional compat_cloudabi64 \ > # Allwinner common files > arm/allwinner/a10_ehci.c optional ehci aw_ehci fdt > arm/allwinner/aw_gpio.c optional gpio aw_gpio fdt > -arm/allwinner/aw_mmc.c optional mmc aw_mmc fdt > +arm/allwinner/aw_mmc.c optional mmc aw_mmc fdt | mmccam aw_mmc fdt > arm/allwinner/aw_nmi.c optional aw_nmi fdt \ > compile-with "${NORMAL_C} -I$S/gnu/dts/include" > arm/allwinner/aw_rsb.c optional aw_rsb fdt -- Emmanuel Vadot <manu@bidouilliste.com> <manu@freebsd.org>
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