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, 43 deletions

diff --git a/target/linux/bcm4908/patches-5.4/170-net-broadcom-bcm4908_enet-reset-DMA-rings-sw-indexes.patch b/target/linux/bcm4908/patches-5.4/170-net-broadcom-bcm4908_enet-reset-DMA-rings-sw-indexes.patch
deleted file mode 100644
index 7e82230f9a..0000000000
--- a/target/linux/bcm4908/patches-5.4/170-net-broadcom-bcm4908_enet-reset-DMA-rings-sw-indexes.patch
+++ /dev/null
@@ -1,43 +0,0 @@
-From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
-Date: Tue, 22 Jun 2021 07:05:04 +0200
-Subject: [PATCH] net: broadcom: bcm4908_enet: reset DMA rings sw indexes
- properly
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-Resetting software indexes in bcm4908_dma_alloc_buf_descs() is not
-enough as it's called during device probe only. Driver resets DMA on
-every .ndo_open callback and it's required to reset indexes then.
-
-This fixes inconsistent rings state and stalled traffic after interface
-down & up sequence.
-
-Fixes: 4feffeadbcb2 ("net: broadcom: bcm4908enet: add BCM4908 controller driver")
-Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
----
- drivers/net/ethernet/broadcom/bcm4908_enet.c | 6 +++---
- 1 file changed, 3 insertions(+), 3 deletions(-)
-
---- a/drivers/net/ethernet/broadcom/bcm4908_enet.c
-+++ b/drivers/net/ethernet/broadcom/bcm4908_enet.c
-@@ -174,9 +174,6 @@ static int bcm4908_dma_alloc_buf_descs(s
- 	if (!ring->slots)
- 		goto err_free_buf_descs;
- 
--	ring->read_idx = 0;
--	ring->write_idx = 0;
--
- 	return 0;
- 
- err_free_buf_descs:
-@@ -303,6 +300,9 @@ static void bcm4908_enet_dma_ring_init(s
- 
- 	enet_write(enet, ring->st_ram_block + ENET_DMA_CH_STATE_RAM_BASE_DESC_PTR,
- 		   (uint32_t)ring->dma_addr);
-+
-+	ring->read_idx = 0;
-+	ring->write_idx = 0;
- }
- 
- static void bcm4908_enet_dma_uninit(struct bcm4908_enet *enet)