kernel: 5.10: update nvmem subsystem to the 5.15 state
[openwrt/staging/hauke.git] / target / linux / generic / backport-5.10 / 803-v6.2-0003-nvmem-u-boot-env-add-Broadcom-format-support.patch
diff --git a/target/linux/generic/backport-5.10/803-v6.2-0003-nvmem-u-boot-env-add-Broadcom-format-support.patch b/target/linux/generic/backport-5.10/803-v6.2-0003-nvmem-u-boot-env-add-Broadcom-format-support.patch
deleted file mode 100644 (file)
index 429b24f..0000000
+++ /dev/null
@@ -1,65 +0,0 @@
-From 5b4eaafbeac472fc19049152f18e88aecb2b2829 Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
-Date: Mon, 17 Oct 2022 09:17:22 +0200
-Subject: [PATCH] nvmem: u-boot-env: add Broadcom format support
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-Broadcom uses U-Boot for a lot of their bcmbca familiy chipsets. They
-decided to store U-Boot environment data inside U-Boot partition and to
-use a custom header (with "uEnv" magic and env data length).
-
-Add support for Broadcom's specific binding and their custom format.
-
-Ref: 6b0584c19d87 ("dt-bindings: nvmem: u-boot,env: add Broadcom's variant binding")
-Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
-Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
----
- drivers/nvmem/u-boot-env.c | 14 ++++++++++++++
- 1 file changed, 14 insertions(+)
-
---- a/drivers/nvmem/u-boot-env.c
-+++ b/drivers/nvmem/u-boot-env.c
-@@ -16,6 +16,7 @@
- enum u_boot_env_format {
-       U_BOOT_FORMAT_SINGLE,
-       U_BOOT_FORMAT_REDUNDANT,
-+      U_BOOT_FORMAT_BROADCOM,
- };
- struct u_boot_env {
-@@ -40,6 +41,13 @@ struct u_boot_env_image_redundant {
-       uint8_t data[];
- } __packed;
-+struct u_boot_env_image_broadcom {
-+      __le32 magic;
-+      __le32 len;
-+      __le32 crc32;
-+      uint8_t data[0];
-+} __packed;
-+
- static int u_boot_env_read(void *context, unsigned int offset, void *val,
-                          size_t bytes)
- {
-@@ -138,6 +146,11 @@ static int u_boot_env_parse(struct u_boo
-               crc32_data_offset = offsetof(struct u_boot_env_image_redundant, data);
-               data_offset = offsetof(struct u_boot_env_image_redundant, data);
-               break;
-+      case U_BOOT_FORMAT_BROADCOM:
-+              crc32_offset = offsetof(struct u_boot_env_image_broadcom, crc32);
-+              crc32_data_offset = offsetof(struct u_boot_env_image_broadcom, data);
-+              data_offset = offsetof(struct u_boot_env_image_broadcom, data);
-+              break;
-       }
-       crc32 = le32_to_cpu(*(__le32 *)(buf + crc32_offset));
-       crc32_data_len = priv->mtd->size - crc32_data_offset;
-@@ -202,6 +215,7 @@ static const struct of_device_id u_boot_
-       { .compatible = "u-boot,env", .data = (void *)U_BOOT_FORMAT_SINGLE, },
-       { .compatible = "u-boot,env-redundant-bool", .data = (void *)U_BOOT_FORMAT_REDUNDANT, },
-       { .compatible = "u-boot,env-redundant-count", .data = (void *)U_BOOT_FORMAT_REDUNDANT, },
-+      { .compatible = "brcm,env", .data = (void *)U_BOOT_FORMAT_BROADCOM, },
-       {},
- };