kernel: delete Linux 5.4 config and patches

As the upcoming release will be based on Linux 5.10 only, remove all
kernel configuration as well as patches for Linux 5.4.
There were no targets still actively using Linux 5.4.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cherry picked from commit 3a14580411adfb75f9a44eded9f41245b9e44606)

1 files changed, 0 insertions, 263 deletions

diff --git a/target/linux/layerscape/patches-5.4/701-net-0201-dpaa2-eth-Enable-Tx-PFC.patch b/target/linux/layerscape/patches-5.4/701-net-0201-dpaa2-eth-Enable-Tx-PFC.patch
deleted file mode 100644
index 7d18504070..0000000000
--- a/target/linux/layerscape/patches-5.4/701-net-0201-dpaa2-eth-Enable-Tx-PFC.patch
+++ /dev/null
@@ -1,263 +0,0 @@
-From 07fb72fb5b3d2faeeb742ae573aa54a4a1eeee12 Mon Sep 17 00:00:00 2001
-From: Ioana Radulescu <ruxandra.radulescu@nxp.com>
-Date: Tue, 17 Sep 2019 20:36:08 +0300
-Subject: [PATCH] dpaa2-eth: Enable Tx PFC
-
-Configure the hardware to generate PFC frames based on Rx congestion
-notifications. When a certain number of frames accumulate in the
-ingress queues corresponding to a traffic class, priority flow control
-frames are generated for that TC.
-
-Signed-off-by: Ioana Radulescu <ruxandra.radulescu@nxp.com>
----
- drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c | 49 ++++++++++++++++++++-
- drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h | 11 +++++
- drivers/net/ethernet/freescale/dpaa2/dpni-cmd.h  | 25 +++++++++++
- drivers/net/ethernet/freescale/dpaa2/dpni.c      | 46 +++++++++++++++++++
- drivers/net/ethernet/freescale/dpaa2/dpni.h      | 56 ++++++++++++++++++++++++
- 5 files changed, 186 insertions(+), 1 deletion(-)
-
---- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
-+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
-@@ -3629,6 +3629,47 @@ static int dpaa2_eth_dcbnl_ieee_getpfc(s
- 	return 0;
- }
- 
-+static inline bool is_prio_enabled(u8 pfc_en, u8 tc)
-+{
-+	return !!(pfc_en & (1 << tc));
-+}
-+
-+static int set_pfc_cn(struct dpaa2_eth_priv *priv, u8 pfc_en)
-+{
-+	struct dpni_congestion_notification_cfg cfg = {0};
-+	int i, err;
-+
-+	cfg.notification_mode = DPNI_CONG_OPT_FLOW_CONTROL;
-+	cfg.units = DPNI_CONGESTION_UNIT_FRAMES;
-+	cfg.message_iova = 0ULL;
-+	cfg.message_ctx = 0ULL;
-+
-+	for (i = 0; i < dpaa2_eth_tc_count(priv); i++) {
-+		if (is_prio_enabled(pfc_en, i)) {
-+			cfg.threshold_entry = DPAA2_ETH_CN_THRESH_ENTRY(priv);
-+			cfg.threshold_exit = DPAA2_ETH_CN_THRESH_EXIT(priv);
-+		} else {
-+			/* For priorities not set in the pfc_en mask, we leave
-+			 * the congestion thresholds at zero, which effectively
-+			 * disables generation of PFC frames for them
-+			 */
-+			cfg.threshold_entry = 0;
-+			cfg.threshold_exit = 0;
-+		}
-+
-+		err = dpni_set_congestion_notification(priv->mc_io, 0,
-+						       priv->mc_token,
-+						       DPNI_QUEUE_RX, i, &cfg);
-+		if (err) {
-+			netdev_err(priv->net_dev,
-+				   "dpni_set_congestion_notification failed\n");
-+			return err;
-+		}
-+	}
-+
-+	return 0;
-+}
-+
- static int dpaa2_eth_dcbnl_ieee_setpfc(struct net_device *net_dev,
- 				       struct ieee_pfc *pfc)
- {
-@@ -3646,7 +3687,8 @@ static int dpaa2_eth_dcbnl_ieee_setpfc(s
- 	/* We allow PFC configuration even if it won't have any effect until
- 	 * general pause frames are enabled
- 	 */
--	if (!dpaa2_eth_rx_pause_enabled(priv->link_state.options))
-+	if (!dpaa2_eth_rx_pause_enabled(priv->link_state.options) ||
-+	    !dpaa2_eth_tx_pause_enabled(priv->link_state.options))
- 		netdev_warn(net_dev, "Pause support must be enabled in order for PFC to work!\n");
- 
- 	link_cfg.rate = priv->link_state.rate;
-@@ -3661,6 +3703,11 @@ static int dpaa2_eth_dcbnl_ieee_setpfc(s
- 		return err;
- 	}
- 
-+	/* Configure congestion notifications for the enabled priorities */
-+	err = set_pfc_cn(priv, pfc->pfc_en);
-+	if (err)
-+		return err;
-+
- 	memcpy(&priv->pfc, pfc, sizeof(priv->pfc));
- 
- 	return 0;
---- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h
-+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h
-@@ -65,6 +65,17 @@
- #define DPAA2_ETH_CG_TAILDROP_THRESH(priv)				\
- 	(1024 * dpaa2_eth_queue_count(priv) / dpaa2_eth_tc_count(priv))
- 
-+/* Congestion group notification threshold: when this many frames accumulate
-+ * on the Rx queues belonging to the same TC, the MAC is instructed to send
-+ * PFC frames for that TC.
-+ * When number of pending frames drops below exit threshold transmission of
-+ * PFC frames is stopped.
-+ */
-+#define DPAA2_ETH_CN_THRESH_ENTRY(priv) \
-+	(DPAA2_ETH_CG_TAILDROP_THRESH(priv) / 2)
-+#define DPAA2_ETH_CN_THRESH_EXIT(priv) \
-+	(DPAA2_ETH_CN_THRESH_ENTRY(priv) * 3 / 4)
-+
- /* Maximum number of buffers that can be acquired/released through a single
-  * QBMan command
-  */
---- a/drivers/net/ethernet/freescale/dpaa2/dpni-cmd.h
-+++ b/drivers/net/ethernet/freescale/dpaa2/dpni-cmd.h
-@@ -601,4 +601,29 @@ struct dpni_cmd_remove_qos_entry {
- 	__le64 mask_iova;
- };
- 
-+#define DPNI_DEST_TYPE_SHIFT		0
-+#define DPNI_DEST_TYPE_SIZE		4
-+#define DPNI_CONG_UNITS_SHIFT		4
-+#define DPNI_CONG_UNITS_SIZE		2
-+
-+struct dpni_cmd_set_congestion_notification {
-+	/* cmd word 0 */
-+	u8 qtype;
-+	u8 tc;
-+	u8 pad[6];
-+	/* cmd word 1 */
-+	__le32 dest_id;
-+	__le16 notification_mode;
-+	u8 dest_priority;
-+	/* from LSB: dest_type: 4 units:2 */
-+	u8 type_units;
-+	/* cmd word 2 */
-+	__le64 message_iova;
-+	/* cmd word 3 */
-+	__le64 message_ctx;
-+	/* cmd word 4 */
-+	__le32 threshold_entry;
-+	__le32 threshold_exit;
-+};
-+
- #endif /* _FSL_DPNI_CMD_H */
---- a/drivers/net/ethernet/freescale/dpaa2/dpni.c
-+++ b/drivers/net/ethernet/freescale/dpaa2/dpni.c
-@@ -1355,6 +1355,52 @@ int dpni_set_rx_tc_dist(struct fsl_mc_io
- }
- 
- /**
-+ * dpni_set_congestion_notification() - Set traffic class congestion
-+ *					notification configuration
-+ * @mc_io:	Pointer to MC portal's I/O object
-+ * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
-+ * @token:	Token of DPNI object
-+ * @qtype:	Type of queue - Rx, Tx and Tx confirm types are supported
-+ * @tc_id:	Traffic class selection (0-7)
-+ * @cfg:	Congestion notification configuration
-+ *
-+ * Return:	'0' on Success; error code otherwise.
-+ */
-+int dpni_set_congestion_notification(
-+			struct fsl_mc_io *mc_io,
-+			u32 cmd_flags,
-+			u16 token,
-+			enum dpni_queue_type qtype,
-+			u8 tc_id,
-+			const struct dpni_congestion_notification_cfg *cfg)
-+{
-+	struct dpni_cmd_set_congestion_notification *cmd_params;
-+	struct fsl_mc_command cmd = { 0 };
-+
-+	/* prepare command */
-+	cmd.header =
-+		mc_encode_cmd_header(DPNI_CMDID_SET_CONGESTION_NOTIFICATION,
-+				     cmd_flags,
-+				     token);
-+	cmd_params = (struct dpni_cmd_set_congestion_notification *)cmd.params;
-+	cmd_params->qtype = qtype;
-+	cmd_params->tc = tc_id;
-+	cmd_params->dest_id = cpu_to_le32(cfg->dest_cfg.dest_id);
-+	cmd_params->notification_mode = cpu_to_le16(cfg->notification_mode);
-+	cmd_params->dest_priority = cfg->dest_cfg.priority;
-+	dpni_set_field(cmd_params->type_units, DEST_TYPE,
-+		       cfg->dest_cfg.dest_type);
-+	dpni_set_field(cmd_params->type_units, CONG_UNITS, cfg->units);
-+	cmd_params->message_iova = cpu_to_le64(cfg->message_iova);
-+	cmd_params->message_ctx = cpu_to_le64(cfg->message_ctx);
-+	cmd_params->threshold_entry = cpu_to_le32(cfg->threshold_entry);
-+	cmd_params->threshold_exit = cpu_to_le32(cfg->threshold_exit);
-+
-+	/* send command to mc*/
-+	return mc_send_command(mc_io, &cmd);
-+}
-+
-+/**
-  * dpni_set_queue() - Set queue parameters
-  * @mc_io:	Pointer to MC portal's I/O object
-  * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
---- a/drivers/net/ethernet/freescale/dpaa2/dpni.h
-+++ b/drivers/net/ethernet/freescale/dpaa2/dpni.h
-@@ -883,6 +883,62 @@ enum dpni_congestion_point {
- };
- 
- /**
-+ * struct dpni_dest_cfg - Structure representing DPNI destination parameters
-+ * @dest_type:	Destination type
-+ * @dest_id:	Either DPIO ID or DPCON ID, depending on the destination type
-+ * @priority:	Priority selection within the DPIO or DPCON channel; valid
-+ *		values are 0-1 or 0-7, depending on the number of priorities
-+ *		in that channel; not relevant for 'DPNI_DEST_NONE' option
-+ */
-+struct dpni_dest_cfg {
-+	enum dpni_dest dest_type;
-+	int dest_id;
-+	u8 priority;
-+};
-+
-+/* DPNI congestion options */
-+
-+/**
-+ * This congestion will trigger flow control or priority flow control.
-+ * This will have effect only if flow control is enabled with
-+ * dpni_set_link_cfg().
-+ */
-+#define DPNI_CONG_OPT_FLOW_CONTROL		0x00000040
-+
-+/**
-+ * struct dpni_congestion_notification_cfg - congestion notification
-+ *					configuration
-+ * @units: Units type
-+ * @threshold_entry: Above this threshold we enter a congestion state.
-+ *		set it to '0' to disable it
-+ * @threshold_exit: Below this threshold we exit the congestion state.
-+ * @message_ctx: The context that will be part of the CSCN message
-+ * @message_iova: I/O virtual address (must be in DMA-able memory),
-+ *		must be 16B aligned; valid only if 'DPNI_CONG_OPT_WRITE_MEM_<X>'
-+ *		is contained in 'options'
-+ * @dest_cfg: CSCN can be send to either DPIO or DPCON WQ channel
-+ * @notification_mode: Mask of available options; use 'DPNI_CONG_OPT_<X>' values
-+ */
-+
-+struct dpni_congestion_notification_cfg {
-+	enum dpni_congestion_unit units;
-+	u32 threshold_entry;
-+	u32 threshold_exit;
-+	u64 message_ctx;
-+	u64 message_iova;
-+	struct dpni_dest_cfg dest_cfg;
-+	u16 notification_mode;
-+};
-+
-+int dpni_set_congestion_notification(
-+			struct fsl_mc_io *mc_io,
-+			u32 cmd_flags,
-+			u16 token,
-+			enum dpni_queue_type qtype,
-+			u8 tc_id,
-+			const struct dpni_congestion_notification_cfg *cfg);
-+
-+/**
-  * struct dpni_taildrop - Structure representing the taildrop
-  * @enable:	Indicates whether the taildrop is active or not.
-  * @units:	Indicates the unit of THRESHOLD. Queue taildrop only supports