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, 70 deletions

diff --git a/target/linux/generic/backport-5.4/831-v5.13-0005-firmware-bcm47xx_nvram-inline-code-checking-NVRAM-si.patch b/target/linux/generic/backport-5.4/831-v5.13-0005-firmware-bcm47xx_nvram-inline-code-checking-NVRAM-si.patch
deleted file mode 100644
index 21d250049e..0000000000
--- a/target/linux/generic/backport-5.4/831-v5.13-0005-firmware-bcm47xx_nvram-inline-code-checking-NVRAM-si.patch
+++ /dev/null
@@ -1,70 +0,0 @@
-From f52da4ccfec9192e17f5c16260dfdd6d3ea76f65 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 10:03:20 +0100
-Subject: [PATCH] firmware: bcm47xx_nvram: inline code checking NVRAM size
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-Separated function was not improving code quality much (or at all).
-Moreover it expected possible flash end address as argument and it was
-returning NVRAM size.
-
-The new code always operates on offsets which means less logic and less
-calculations.
-
-Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
-Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
----
- drivers/firmware/broadcom/bcm47xx_nvram.c | 25 +++++++----------------
- 1 file changed, 7 insertions(+), 18 deletions(-)
-
---- a/drivers/firmware/broadcom/bcm47xx_nvram.c
-+++ b/drivers/firmware/broadcom/bcm47xx_nvram.c
-@@ -42,18 +42,6 @@ static bool bcm47xx_nvram_is_valid(void
- 	return ((struct nvram_header *)nvram)->magic == NVRAM_MAGIC;
- }
- 
--static u32 find_nvram_size(void __iomem *end)
--{
--	int i;
--
--	for (i = 0; i < ARRAY_SIZE(nvram_sizes); i++) {
--		if (bcm47xx_nvram_is_valid(end - nvram_sizes[i]))
--			return nvram_sizes[i];
--	}
--
--	return 0;
--}
--
- /**
-  * bcm47xx_nvram_copy - copy NVRAM to internal buffer
-  */
-@@ -85,7 +73,7 @@ static int bcm47xx_nvram_find_and_copy(v
- {
- 	size_t flash_size;
- 	size_t offset;
--	u32 size;
-+	int i;
- 
- 	if (nvram_len) {
- 		pr_warn("nvram already initialized\n");
-@@ -93,12 +81,13 @@ static int bcm47xx_nvram_find_and_copy(v
- 	}
- 
- 	/* TODO: when nvram is on nand flash check for bad blocks first. */
-+
-+	/* Try every possible flash size and check for NVRAM at its end */
- 	for (flash_size = FLASH_MIN; flash_size <= res_size; flash_size <<= 1) {
--		/* Windowed flash access */
--		size = find_nvram_size(flash_start + flash_size);
--		if (size) {
--			offset = flash_size - size;
--			goto found;
-+		for (i = 0; i < ARRAY_SIZE(nvram_sizes); i++) {
-+			offset = flash_size - nvram_sizes[i];
-+			if (bcm47xx_nvram_is_valid(flash_start + offset))
-+				goto found;
- 		}
- 	}
-