layerscape: add patches-5.4

Add patches for linux-5.4. The patches are from NXP LSDK-20.04 release
which was tagged LSDK-20.04-V5.4.
https://source.codeaurora.org/external/qoriq/qoriq-components/linux/

For boards LS1021A-IOT, and Traverse-LS1043 which are not involved in
LSDK, port the dts patches from 4.14.

The patches are sorted into the following categories:
  301-arch-xxxx
  302-dts-xxxx
  303-core-xxxx
  701-net-xxxx
  801-audio-xxxx
  802-can-xxxx
  803-clock-xxxx
  804-crypto-xxxx
  805-display-xxxx
  806-dma-xxxx
  807-gpio-xxxx
  808-i2c-xxxx
  809-jailhouse-xxxx
  810-keys-xxxx
  811-kvm-xxxx
  812-pcie-xxxx
  813-pm-xxxx
  814-qe-xxxx
  815-sata-xxxx
  816-sdhc-xxxx
  817-spi-xxxx
  818-thermal-xxxx
  819-uart-xxxx
  820-usb-xxxx
  821-vfio-xxxx

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>

1 files changed, 68 insertions, 0 deletions

diff --git a/target/linux/layerscape/patches-5.4/701-net-0291-staging-fsl_ppfe-eth-add-function-to-update-tmu-cred.patch b/target/linux/layerscape/patches-5.4/701-net-0291-staging-fsl_ppfe-eth-add-function-to-update-tmu-cred.patch
new file mode 100644
index 0000000000..72152bf786
--- /dev/null
+++ b/target/linux/layerscape/patches-5.4/701-net-0291-staging-fsl_ppfe-eth-add-function-to-update-tmu-cred.patch
@@ -0,0 +1,68 @@
+From cc230f5618174506889f98ac6b79e72ac9d9d9e4 Mon Sep 17 00:00:00 2001
+From: Calvin Johnson <calvin.johnson@nxp.com>
+Date: Wed, 15 Nov 2017 13:45:27 +0530
+Subject: [PATCH] staging: fsl_ppfe/eth: add function to update tmu credits
+
+__hif_lib_update_credit function is used to update the tmu credits.
+If tx_qos is set, tmu credit is updated based on the number of packets
+transmitted by tmu.
+
+Signed-off-by: Calvin Johnson <calvin.johnson@nxp.com>
+Signed-off-by: Anjaneyulu Jagarlmudi <anji.jagarlmudi@nxp.com>
+---
+ drivers/staging/fsl_ppfe/pfe_hif_lib.c | 33 +++++++++++++++++++++++++++++++++
+ drivers/staging/fsl_ppfe/pfe_hif_lib.h |  1 +
+ 2 files changed, 34 insertions(+)
+
+--- a/drivers/staging/fsl_ppfe/pfe_hif_lib.c
++++ b/drivers/staging/fsl_ppfe/pfe_hif_lib.c
+@@ -565,6 +565,39 @@ static void hif_lib_tmu_credit_init(stru
+ 		}
+ }
+ 
++/* __hif_lib_update_credit
++ *
++ * @param[in] client	hif client context
++ * @param[in] queue	queue number in match with TMU
++ */
++void __hif_lib_update_credit(struct hif_client_s *client, unsigned int queue)
++{
++	unsigned int tmu_tx_packets, tmp;
++
++	if (tx_qos) {
++		tmu_tx_packets = be32_to_cpu(pe_dmem_read(TMU0_ID +
++			client->id, TMU_DM_TX_TRANS, 4));
++
++		/* tx_packets counter overflowed */
++		if (tmu_tx_packets >
++		    pfe->tmu_credit.tx_packets[client->id][queue]) {
++			tmp = UINT_MAX - tmu_tx_packets +
++			pfe->tmu_credit.tx_packets[client->id][queue];
++
++			pfe->tmu_credit.tx_credit[client->id][queue] =
++			pfe->tmu_credit.tx_credit_max[client->id][queue] - tmp;
++		} else {
++		/* TMU tx <= pfe_eth tx, normal case or both OF since
++		 * last time
++		 */
++			pfe->tmu_credit.tx_credit[client->id][queue] =
++			pfe->tmu_credit.tx_credit_max[client->id][queue] -
++			(pfe->tmu_credit.tx_packets[client->id][queue] -
++			tmu_tx_packets);
++		}
++	}
++}
++
+ int pfe_hif_lib_init(struct pfe *pfe)
+ {
+ 	int rc;
+--- a/drivers/staging/fsl_ppfe/pfe_hif_lib.h
++++ b/drivers/staging/fsl_ppfe/pfe_hif_lib.h
+@@ -185,6 +185,7 @@ void *hif_lib_tx_get_next_complete(struc
+ void *hif_lib_receive_pkt(struct hif_client_s *client, int qno, int *len, int
+ 				*ofst, unsigned int *rx_ctrl,
+ 				unsigned int *desc_ctrl, void **priv_data);
++void __hif_lib_update_credit(struct hif_client_s *client, unsigned int queue);
+ void hif_lib_set_rx_cpu_affinity(struct hif_client_s *client, int cpu_id);
+ void hif_lib_set_tx_queue_nocpy(struct hif_client_s *client, int qno, int
+ 					enable);