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, 129 deletions

diff --git a/target/linux/layerscape/patches-5.4/701-net-0093-dpaa_eth-fix-iova-handling-for-contiguous-frames.patch b/target/linux/layerscape/patches-5.4/701-net-0093-dpaa_eth-fix-iova-handling-for-contiguous-frames.patch
deleted file mode 100644
index 430bed1378..0000000000
--- a/target/linux/layerscape/patches-5.4/701-net-0093-dpaa_eth-fix-iova-handling-for-contiguous-frames.patch
+++ /dev/null
@@ -1,129 +0,0 @@
-From 39e4cf29431dec8aaad599d9734f7a0468a9c20b Mon Sep 17 00:00:00 2001
-From: Laurentiu Tudor <laurentiu.tudor@nxp.com>
-Date: Wed, 4 Apr 2018 12:31:05 +0300
-Subject: [PATCH] dpaa_eth: fix iova handling for contiguous frames
-
-The driver relies on the no longer valid assumption that dma addresses
-(iovas) are identical to physical addressees and uses phys_to_virt() to
-make iova -> vaddr conversions. Fix this by adding a function that does
-proper iova -> phys conversions using the iommu api and update the code
-to use it.
-Also, a dma_unmap_single() call had to be moved further down the code
-because iova -> vaddr conversions were required before the unmap.
-For now only the contiguous frame case is handled and the SG case is
-split in a following patch.
-While at it, clean-up a redundant dpaa_bpid2pool() and pass the bp
-as parameter.
-
-Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
-Acked-by: Madalin Bucur <madalin.bucur@nxp.com>
----
- drivers/net/ethernet/freescale/dpaa/dpaa_eth.c | 44 ++++++++++++++------------
- 1 file changed, 24 insertions(+), 20 deletions(-)
-
---- a/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
-+++ b/drivers/net/ethernet/freescale/dpaa/dpaa_eth.c
-@@ -50,6 +50,7 @@
- #include <linux/highmem.h>
- #include <linux/percpu.h>
- #include <linux/dma-mapping.h>
-+#include <linux/iommu.h>
- #include <linux/sort.h>
- #include <linux/phy_fixed.h>
- #include <soc/fsl/bman.h>
-@@ -1615,6 +1616,17 @@ static int dpaa_eth_refill_bpools(struct
- 	return 0;
- }
- 
-+static phys_addr_t dpaa_iova_to_phys(struct device *dev, dma_addr_t addr)
-+{
-+	struct iommu_domain *domain;
-+
-+	domain = iommu_get_domain_for_dev(dev);
-+	if (domain)
-+		return iommu_iova_to_phys(domain, addr);
-+	else
-+		return addr;
-+}
-+
- /* Cleanup function for outgoing frame descriptors that were built on Tx path,
-  * either contiguous frames or scatter/gather ones.
-  * Skb freeing is not handled here.
-@@ -1639,7 +1651,7 @@ static struct sk_buff *dpaa_cleanup_tx_f
- 	int nr_frags, i;
- 	u64 ns;
- 
--	skbh = (struct sk_buff **)phys_to_virt(addr);
-+	skbh = (struct sk_buff **)phys_to_virt(dpaa_iova_to_phys(dev, addr));
- 	skb = *skbh;
- 
- 	if (unlikely(qm_fd_get_format(fd) == qm_fd_sg)) {
-@@ -1718,25 +1730,21 @@ static u8 rx_csum_offload(const struct d
-  * accommodate the shared info area of the skb.
-  */
- static struct sk_buff *contig_fd_to_skb(const struct dpaa_priv *priv,
--					const struct qm_fd *fd)
-+					const struct qm_fd *fd,
-+					struct dpaa_bp *dpaa_bp,
-+					void *vaddr)
- {
- 	ssize_t fd_off = qm_fd_get_offset(fd);
--	dma_addr_t addr = qm_fd_addr(fd);
--	struct dpaa_bp *dpaa_bp;
- 	struct sk_buff *skb;
--	void *vaddr;
- 
--	vaddr = phys_to_virt(addr);
- 	WARN_ON(!IS_ALIGNED((unsigned long)vaddr, SMP_CACHE_BYTES));
- 
--	dpaa_bp = dpaa_bpid2pool(fd->bpid);
--	if (!dpaa_bp)
--		goto free_buffer;
--
- 	skb = build_skb(vaddr, dpaa_bp->size +
- 			SKB_DATA_ALIGN(sizeof(struct skb_shared_info)));
--	if (WARN_ONCE(!skb, "Build skb failure on Rx\n"))
--		goto free_buffer;
-+	if (WARN_ONCE(!skb, "Build skb failure on Rx\n")) {
-+		skb_free_frag(vaddr);
-+		return NULL;
-+	}
- 	WARN_ON(fd_off != priv->rx_headroom);
- 	skb_reserve(skb, fd_off);
- 	skb_put(skb, qm_fd_get_length(fd));
-@@ -1744,10 +1752,6 @@ static struct sk_buff *contig_fd_to_skb(
- 	skb->ip_summed = rx_csum_offload(priv, fd);
- 
- 	return skb;
--
--free_buffer:
--	skb_free_frag(vaddr);
--	return NULL;
- }
- 
- /* Build an skb with the data of the first S/G entry in the linear portion and
-@@ -2476,12 +2480,12 @@ static enum qman_cb_dqrr_result rx_defau
- 	if (!dpaa_bp)
- 		return qman_cb_dqrr_consume;
- 
--	dma_unmap_single(dpaa_bp->dev, addr, dpaa_bp->size, DMA_FROM_DEVICE);
--
- 	/* prefetch the first 64 bytes of the frame or the SGT start */
--	vaddr = phys_to_virt(addr);
-+	vaddr = phys_to_virt(dpaa_iova_to_phys(dpaa_bp->dev, addr));
- 	prefetch(vaddr + qm_fd_get_offset(fd));
- 
-+	dma_unmap_single(dpaa_bp->dev, addr, dpaa_bp->size, DMA_FROM_DEVICE);
-+
- 	/* The only FD types that we may receive are contig and S/G */
- 	WARN_ON((fd_format != qm_fd_contig) && (fd_format != qm_fd_sg));
- 
-@@ -2492,7 +2496,7 @@ static enum qman_cb_dqrr_result rx_defau
- 	(*count_ptr)--;
- 
- 	if (likely(fd_format == qm_fd_contig))
--		skb = contig_fd_to_skb(priv, fd);
-+		skb = contig_fd_to_skb(priv, fd, dpaa_bp, vaddr);
- 	else
- 		skb = sg_fd_to_skb(priv, fd);
- 	if (!skb)