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>

1 files changed, 0 insertions, 90 deletions

diff --git a/target/linux/generic/backport-5.4/831-v5.13-0002-firmware-bcm47xx_nvram-add-helper-checking-for-NVRAM.patch b/target/linux/generic/backport-5.4/831-v5.13-0002-firmware-bcm47xx_nvram-add-helper-checking-for-NVRAM.patch
deleted file mode 100644
index 6ab072883d..0000000000
--- a/target/linux/generic/backport-5.4/831-v5.13-0002-firmware-bcm47xx_nvram-add-helper-checking-for-NVRAM.patch
+++ /dev/null
@@ -1,90 +0,0 @@
-From 0a24b51a3264a3f942a75025ea5ff6133c8989b0 Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
-Date: Mon, 8 Mar 2021 10:03:17 +0100
-Subject: [PATCH] firmware: bcm47xx_nvram: add helper checking for NVRAM
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-This avoids duplicating code doing casting and checking for NVRAM magic.
-
-Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
-Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
----
- drivers/firmware/broadcom/bcm47xx_nvram.c | 30 ++++++++++++++---------
- 1 file changed, 18 insertions(+), 12 deletions(-)
-
---- a/drivers/firmware/broadcom/bcm47xx_nvram.c
-+++ b/drivers/firmware/broadcom/bcm47xx_nvram.c
-@@ -34,14 +34,20 @@ static char nvram_buf[NVRAM_SPACE];
- static size_t nvram_len;
- static const u32 nvram_sizes[] = {0x6000, 0x8000, 0xF000, 0x10000};
- 
-+/**
-+ * bcm47xx_nvram_is_valid - check for a valid NVRAM at specified memory
-+ */
-+static bool bcm47xx_nvram_is_valid(void __iomem *nvram)
-+{
-+	return ((struct nvram_header *)nvram)->magic == NVRAM_MAGIC;
-+}
-+
- static u32 find_nvram_size(void __iomem *end)
- {
--	struct nvram_header __iomem *header;
- 	int i;
- 
- 	for (i = 0; i < ARRAY_SIZE(nvram_sizes); i++) {
--		header = (struct nvram_header *)(end - nvram_sizes[i]);
--		if (header->magic == NVRAM_MAGIC)
-+		if (bcm47xx_nvram_is_valid(end - nvram_sizes[i]))
- 			return nvram_sizes[i];
- 	}
- 
-@@ -55,6 +61,7 @@ static int bcm47xx_nvram_find_and_copy(v
- {
- 	struct nvram_header __iomem *header;
- 	size_t flash_size;
-+	size_t offset;
- 	u32 size;
- 
- 	if (nvram_len) {
-@@ -68,31 +75,30 @@ static int bcm47xx_nvram_find_and_copy(v
- 		/* Windowed flash access */
- 		size = find_nvram_size(flash_start + flash_size);
- 		if (size) {
--			header = (struct nvram_header *)(flash_start + flash_size - size);
-+			offset = flash_size - size;
- 			goto found;
- 		}
- 		flash_size <<= 1;
- 	}
- 
- 	/* Try embedded NVRAM at 4 KB and 1 KB as last resorts */
--	header = (struct nvram_header *)(flash_start + 4096);
--	if (header->magic == NVRAM_MAGIC) {
--		size = NVRAM_SPACE;
-+
-+	offset = 4096;
-+	if (bcm47xx_nvram_is_valid(flash_start + offset))
- 		goto found;
--	}
- 
--	header = (struct nvram_header *)(flash_start + 1024);
--	if (header->magic == NVRAM_MAGIC) {
--		size = NVRAM_SPACE;
-+	offset = 1024;
-+	if (bcm47xx_nvram_is_valid(flash_start + offset))
- 		goto found;
--	}
- 
- 	pr_err("no nvram found\n");
- 	return -ENXIO;
- 
- found:
-+	header = (struct nvram_header *)(flash_start + offset);
- 	__ioread32_copy(nvram_buf, header, sizeof(*header) / 4);
- 	nvram_len = ((struct nvram_header *)(nvram_buf))->len;
-+	size = res_size - offset;
- 	if (nvram_len > size) {
- 		pr_err("The nvram size according to the header seems to be bigger than the partition on flash\n");
- 		nvram_len = size;