bcm27xx: import latest patches from the RPi foundation

bcm2708: boot tested on RPi B+ v1.2
bcm2709: boot tested on RPi 3B v1.2 and RPi 4B v1.1 4G
bcm2710: boot tested on RPi 3B v1.2
bcm2711: boot tested on RPi 4B v1.1 4G

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>

1 files changed, 0 insertions, 95 deletions

diff --git a/target/linux/bcm27xx/patches-5.4/950-0390-dwc_otg-fiq_fsm-pause-when-cancelling-split-transact.patch b/target/linux/bcm27xx/patches-5.4/950-0390-dwc_otg-fiq_fsm-pause-when-cancelling-split-transact.patch
deleted file mode 100644
index 0a7356ffa2..0000000000
--- a/target/linux/bcm27xx/patches-5.4/950-0390-dwc_otg-fiq_fsm-pause-when-cancelling-split-transact.patch
+++ /dev/null
@@ -1,95 +0,0 @@
-From 09648b92a71b03450e9482f0cc5bd22298f78d44 Mon Sep 17 00:00:00 2001
-From: Jonathan Bell <jonathan@raspberrypi.org>
-Date: Wed, 8 Jan 2020 12:48:09 +0000
-Subject: [PATCH] dwc_otg: fiq_fsm: pause when cancelling split
- transactions
-
-Non-periodic splits will DMA to/from the driver-provided transfer_buffer,
-which may be freed immediately after the dequeue call returns. Block until
-we know the transfer is complete.
-
-A similar delay is needed when cleaning up disconnects, as the FIQ could
-have started a periodic transfer in the previous microframe to the one
-that triggered a disconnect.
-
-Signed-off-by: Jonathan Bell <jonathan@raspberrypi.org>
----
- drivers/usb/host/dwc_otg/dwc_otg_hcd.c    | 33 +++++++++++++++++++++--
- drivers/usb/host/dwc_otg/dwc_otg_os_dep.h |  1 +
- 2 files changed, 32 insertions(+), 2 deletions(-)
-
---- a/drivers/usb/host/dwc_otg/dwc_otg_hcd.c
-+++ b/drivers/usb/host/dwc_otg/dwc_otg_hcd.c
-@@ -175,6 +175,7 @@ static void kill_urbs_in_qh_list(dwc_otg
- 	dwc_list_link_t *qh_item, *qh_tmp;
- 	dwc_otg_qh_t *qh;
- 	dwc_otg_qtd_t *qtd, *qtd_tmp;
-+	int quiesced = 0;
- 
- 	DWC_LIST_FOREACH_SAFE(qh_item, qh_tmp, qh_list) {
- 		qh = DWC_LIST_ENTRY(qh_item, dwc_otg_qh_t, qh_list_entry);
-@@ -198,8 +199,17 @@ static void kill_urbs_in_qh_list(dwc_otg
- 				qh->channel->halt_status = DWC_OTG_HC_XFER_URB_DEQUEUE;
- 				qh->channel->halt_pending = 1;
- 				if (hcd->fiq_state->channel[n].fsm == FIQ_HS_ISOC_TURBO ||
--					hcd->fiq_state->channel[n].fsm == FIQ_HS_ISOC_SLEEPING)
-+				    hcd->fiq_state->channel[n].fsm == FIQ_HS_ISOC_SLEEPING)
- 					hcd->fiq_state->channel[n].fsm = FIQ_HS_ISOC_ABORTED;
-+				/* We're called from disconnect callback or in the middle of freeing the HCD here,
-+				 * so FIQ is disabled, top-level interrupts masked and we're holding the spinlock.
-+				 * No further URBs will be submitted, but wait 1 microframe for any previously
-+				 * submitted periodic DMA to finish.
-+				 */
-+				if (!quiesced) {
-+					udelay(125);
-+					quiesced = 1;
-+				}
- 			} else {
- 				dwc_otg_hc_halt(hcd->core_if, qh->channel,
- 						DWC_OTG_HC_XFER_URB_DEQUEUE);
-@@ -600,15 +610,34 @@ int dwc_otg_hcd_urb_dequeue(dwc_otg_hcd_
- 			/* In FIQ FSM mode, we need to shut down carefully.
- 			 * The FIQ may attempt to restart a disabled channel */
- 			if (fiq_fsm_enable && (hcd->fiq_state->channel[n].fsm != FIQ_PASSTHROUGH)) {
-+				int retries = 3;
-+				int running = 0;
-+				enum fiq_fsm_state state;
-+
- 				local_fiq_disable();
- 				fiq_fsm_spin_lock(&hcd->fiq_state->lock);
- 				qh->channel->halt_status = DWC_OTG_HC_XFER_URB_DEQUEUE;
- 				qh->channel->halt_pending = 1;
- 				if (hcd->fiq_state->channel[n].fsm == FIQ_HS_ISOC_TURBO ||
--					hcd->fiq_state->channel[n].fsm == FIQ_HS_ISOC_SLEEPING)
-+				    hcd->fiq_state->channel[n].fsm == FIQ_HS_ISOC_SLEEPING)
- 					hcd->fiq_state->channel[n].fsm = FIQ_HS_ISOC_ABORTED;
- 				fiq_fsm_spin_unlock(&hcd->fiq_state->lock);
- 				local_fiq_enable();
-+
-+				if (dwc_qh_is_non_per(qh)) {
-+					do {
-+						state = READ_ONCE(hcd->fiq_state->channel[n].fsm);
-+						running = (state != FIQ_NP_SPLIT_DONE) &&
-+							  (state != FIQ_NP_SPLIT_LS_ABORTED) &&
-+							  (state != FIQ_NP_SPLIT_HS_ABORTED);
-+						if (!running)
-+							break;
-+						udelay(125);
-+					} while(--retries);
-+					if (!retries)
-+						DWC_WARN("Timed out waiting for FSM NP transfer to complete on %d",
-+							 qh->channel->hc_num);
-+				}
- 			} else {
- 				dwc_otg_hc_halt(hcd->core_if, qh->channel,
- 						DWC_OTG_HC_XFER_URB_DEQUEUE);
---- a/drivers/usb/host/dwc_otg/dwc_otg_os_dep.h
-+++ b/drivers/usb/host/dwc_otg/dwc_otg_os_dep.h
-@@ -27,6 +27,7 @@
- #include <linux/workqueue.h>
- #include <linux/stat.h>
- #include <linux/pci.h>
-+#include <linux/compiler.h>
- 
- #include <linux/version.h>
-