From dff8dc932fd69ba084bf0959ccb6d725f059fd2a Mon Sep 17 00:00:00 2001
From: lyz <lyz@rock-chips.com>
Date: Tue, 5 Aug 2014 09:06:13 +0800
Subject: [PATCH] usb: udc: receive 1 SETUP packet in BDMA mode
---
drivers/usb/dwc_otg_310/dwc_otg_cil.c | 2 +-
drivers/usb/dwc_otg_310/dwc_otg_pcd_intr.c | 16 +---------------
2 files changed, 2 insertions(+), 16 deletions(-)
diff --git a/drivers/usb/dwc_otg_310/dwc_otg_cil.c b/drivers/usb/dwc_otg_310/dwc_otg_cil.c
index 0ed45a84199b..2f6aae33f8f2 100755
--- a/drivers/usb/dwc_otg_310/dwc_otg_cil.c
+++ b/drivers/usb/dwc_otg_310/dwc_otg_cil.c
@@ -4686,7 +4686,7 @@ void dwc_otg_ep0_start_transfer(dwc_otg_core_if_t *core_if, dwc_ep_t *ep)
deptsiz.b.xfersize = ep->maxpacket;
deptsiz.b.pktcnt = 1;
if (core_if->snpsid >= OTG_CORE_REV_3_00a)
- deptsiz.b.supcnt = 3;
+ deptsiz.b.supcnt = 1;
DWC_DEBUGPL(DBG_PCDV, "len=%d xfersize=%d pktcnt=%d\n",
ep->xfer_len, deptsiz.b.xfersize, deptsiz.b.pktcnt);
diff --git a/drivers/usb/dwc_otg_310/dwc_otg_pcd_intr.c b/drivers/usb/dwc_otg_310/dwc_otg_pcd_intr.c
index fb2f8884acdb..eb499643b9e8 100755
--- a/drivers/usb/dwc_otg_310/dwc_otg_pcd_intr.c
+++ b/drivers/usb/dwc_otg_310/dwc_otg_pcd_intr.c
@@ -745,7 +745,7 @@ static inline void ep0_out_start(dwc_otg_core_if_t *core_if,
}
}
- doeptsize0.b.supcnt = 3;
+ doeptsize0.b.supcnt = 1;
doeptsize0.b.pktcnt = 1;
doeptsize0.b.xfersize = 8 * 3;
@@ -1834,20 +1834,6 @@ static inline void pcd_setup(dwc_otg_pcd_t *pcd)
doeptsize0.d32 = DWC_READ_REG32(&dev_if->out_ep_regs[0]->doeptsiz);
- /** In BDMA more then 1 setup packet is not supported till 3.00a */
- if (core_if->dma_enable && core_if->dma_desc_enable == 0
- && (doeptsize0.b.supcnt < 2)
- && (core_if->snpsid < OTG_CORE_REV_2_94a)) {
- DWC_ERROR
- ("\n\n----------- CANNOT handle > 1 setup packet in DMA mode\n\n");
- }
- if ((core_if->snpsid >= OTG_CORE_REV_3_00a)
- && (core_if->dma_enable == 1) && (core_if->dma_desc_enable == 0)) {
- ctrl =
- (pcd->setup_pkt +
- (3 - doeptsize0.b.supcnt - 1 +
- ep0->dwc_ep.stp_rollover))->req;
- }
#ifdef DEBUG_EP0
DWC_DEBUGPL(DBG_PCD, "SETUP %02x.%02x v%04x i%04x l%04x\n",
ctrl.bmRequestType, ctrl.bRequest,
--
2.34.1