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, 81 deletions

diff --git a/target/linux/layerscape/patches-5.4/701-net-0108-sdk_dpaa-ls1043a-errata-impose-S-G-frame-realignment.patch b/target/linux/layerscape/patches-5.4/701-net-0108-sdk_dpaa-ls1043a-errata-impose-S-G-frame-realignment.patch
deleted file mode 100644
index 8de280212f..0000000000
--- a/target/linux/layerscape/patches-5.4/701-net-0108-sdk_dpaa-ls1043a-errata-impose-S-G-frame-realignment.patch
+++ /dev/null
@@ -1,81 +0,0 @@
-From bfc02cc199dc6259c2f4e2af8f77c88fe8ba4cc5 Mon Sep 17 00:00:00 2001
-From: Camelia Groza <camelia.groza@nxp.com>
-Date: Tue, 5 Mar 2019 11:55:54 +0200
-Subject: [PATCH] sdk_dpaa: ls1043a errata: impose S/G frame realignment
-
-Scatter/Gather frames are not support on LS1043A beacuse they trigger
-the A010022 errata.
-
-Even though we do not advertise S/G support to the stack, we need to
-make sure that if S/G frames do reach the driver somehow, they trigger
-the errata workaround.
-
-Signed-off-by: Camelia Groza <camelia.groza@nxp.com>
----
- drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth.h |  7 ++++---
- .../net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c  | 23 +++++-----------------
- 2 files changed, 9 insertions(+), 21 deletions(-)
-
---- a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth.h
-+++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth.h
-@@ -653,9 +653,10 @@ static inline void _dpa_bp_free_pf(void
- 
- /* 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 that realigns frames to 256 bytes. Scatter/Gather
-- * frames aren't supported on egress.
-+ * boundaries, when they are not aligned to 16 bytes or when they have
-+ * Scatter/Gather fragments; For the moment, we use a SW workaround that
-+ * realigns frames to 256 bytes. Scatter/Gather frames aren't supported
-+ * on egress.
-  */
- 
- #ifndef CONFIG_PPC
---- a/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c
-+++ b/drivers/net/ethernet/freescale/sdk_dpaa/dpaa_eth_sg.c
-@@ -772,18 +772,19 @@ EXPORT_SYMBOL(skb_to_contig_fd);
- 
- #ifndef CONFIG_PPC
- /* Verify the conditions that trigger the A010022 errata: data unaligned to
-- * 16 bytes and 4K memory address crossings.
-+ * 16 bytes, 4K memory address crossings and S/G fragments.
-  */
- static bool a010022_check_skb(struct sk_buff *skb, struct dpa_priv_s *priv)
- {
--	int nr_frags, i = 0;
--	skb_frag_t *frag;
--
- 	/* Check if the headroom is aligned */
- 	if (((uintptr_t)skb->data - priv->tx_headroom) %
- 	    priv->buf_layout[TX].data_align != 0)
- 		return true;
- 
-+	/* Check for paged data in the skb. We do not support S/G fragments */
-+	if (skb_is_nonlinear(skb))
-+		return true;
-+
- 	/* Check if the headroom crosses a boundary */
- 	if (HAS_DMA_ISSUE(skb->head, skb_headroom(skb)))
- 		return true;
-@@ -796,20 +797,6 @@ static bool a010022_check_skb(struct sk_
- 	if (HAS_DMA_ISSUE(skb->head, skb_end_offset(skb)))
- 		return true;
- 
--	nr_frags = skb_shinfo(skb)->nr_frags;
--
--	while (i < nr_frags) {
--		frag = &skb_shinfo(skb)->frags[i];
--
--		/* Check if a paged fragment crosses a boundary from its
--		 * offset to its end.
--		 */
--		if (HAS_DMA_ISSUE(frag->page_offset, frag->size))
--			return true;
--
--		i++;
--	}
--
- 	return false;
- }
-