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, 61 deletions

diff --git a/target/linux/layerscape/patches-5.4/701-net-0025-sdk_dpaa-ls1043a-errata-do-not-recycle-the-realigned.patch b/target/linux/layerscape/patches-5.4/701-net-0025-sdk_dpaa-ls1043a-errata-do-not-recycle-the-realigned.patch
deleted file mode 100644
index 4030385be5..0000000000
--- a/target/linux/layerscape/patches-5.4/701-net-0025-sdk_dpaa-ls1043a-errata-do-not-recycle-the-realigned.patch
+++ /dev/null
@@ -1,61 +0,0 @@
-From e8c0a77a831843a66b3ac0048aa6c76bc39b0332 Mon Sep 17 00:00:00 2001
-From: Camelia Groza <camelia.groza@nxp.com>
-Date: Mon, 4 Sep 2017 14:03:01 +0300
-Subject: [PATCH] sdk_dpaa: ls1043a errata: do not recycle the realigned
- buffers
-
-Signed-off-by: Camelia Groza <camelia.groza@nxp.com>
----
- drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth.h    | 10 ++++++----
- drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c |  9 +++++++++
- 2 files changed, 15 insertions(+), 4 deletions(-)
-
---- a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth.h
-+++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth.h
-@@ -680,15 +680,17 @@ static inline void _dpa_bp_free_pf(void
- 	put_page(virt_to_head_page(addr));
- }
- 
--/* TODO: LS1043A SoC has a HW issue regarding FMan DMA transactions; The issue
-- * manifests itself at high traffic rates when frames exceed 4K memory
-- * boundaries; For the moment, we use a SW workaround to avoid frames larger
-- * than 4K or that exceed 4K alignments.
-+/* LS1043A SoC has a HW issue regarding FMan DMA transactions; The issue
-+ * manifests itself at high traffic rates when frames cross 4K memory
-+ * boundaries or when they are not aligned to 16 bytes; For the moment, we
-+ * use a SW workaround to avoid frames larger than 4K or that exceed 4K
-+ * alignments and to realign the frames to 16 bytes.
-  */
- 
- #ifndef CONFIG_PPC
- extern bool dpaa_errata_a010022; /* SoC affected by A010022 errata */
- 
-+#define NONREC_MARK	0x01
- #define HAS_DMA_ISSUE(start, size) \
- 	(((u64)(start) + (size)) > (((u64)(start) + 0x1000) & ~0xFFF))
- #define BOUNDARY_4K(start, size) (((u64)(start) + (u64)(size)) & ~0xFFF)
---- a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c
-+++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c
-@@ -302,6 +302,12 @@ EXPORT_SYMBOL(_dpa_cleanup_tx_fd);
- #ifndef CONFIG_FSL_DPAA_TS
- bool dpa_skb_is_recyclable(struct sk_buff *skb)
- {
-+#ifndef CONFIG_PPC
-+	/* Do no recycle skbs realigned by the errata workaround */
-+	if (unlikely(dpaa_errata_a010022) && skb->mark == NONREC_MARK)
-+		return false;
-+#endif
-+
- 	/* No recycling possible if skb buffer is kmalloc'ed  */
- 	if (skb->head_frag == 0)
- 		return false;
-@@ -838,6 +844,9 @@ static struct sk_buff *a010022_realign_s
- 	skb_set_network_header(nskb, net_offset);
- 	skb_set_transport_header(nskb, trans_offset);
- 
-+	/* We don't want the buffer to be recycled so we mark it accordingly */
-+	nskb->mark = NONREC_MARK;
-+
- 	dev_kfree_skb(skb);
- 	return nskb;
-