diff options
Diffstat (limited to 'target/linux/generic/backport-5.4')
3 files changed, 168 insertions, 0 deletions
diff --git a/target/linux/generic/backport-5.4/822-v6.2-0001-nvmem-u-boot-env-fix-crc32_data_offset-on-redundant-.patch b/target/linux/generic/backport-5.4/822-v6.2-0001-nvmem-u-boot-env-fix-crc32_data_offset-on-redundant-.patch new file mode 100644 index 0000000000..69d5a1b845 --- /dev/null +++ b/target/linux/generic/backport-5.4/822-v6.2-0001-nvmem-u-boot-env-fix-crc32_data_offset-on-redundant-.patch @@ -0,0 +1,56 @@ +From 7a69ff9c9bde03a690ea783970f664782fc303d8 Mon Sep 17 00:00:00 2001 +From: Christian Lamparter <chunkeey@gmail.com> +Date: Fri, 4 Nov 2022 17:52:03 +0100 +Subject: [PATCH] nvmem: u-boot-env: fix crc32_data_offset on redundant + u-boot-env + +The Western Digital MyBook Live (PowerPC 464/APM82181) +has a set of redundant u-boot-env. Loading up the driver +the following error: + +| u_boot_env: Invalid calculated CRC32: 0x4f8f2c86 (expected: 0x98b14514) +| u_boot_env: probe of partition@1e000 failed with error -22 + +Looking up the userspace libubootenv utilities source [0], +it looks like the "mark" or "flag" is not part of the +crc32 sum... which is unfortunate :( + +|static int libuboot_load(struct uboot_ctx *ctx) +|{ +|[...] +| if (ctx->redundant) { +| [...] +| offsetdata = offsetof(struct uboot_env_redund, data); +| [...] //-----^^ +| } +| usable_envsize = ctx->size - offsetdata; +| buf[0] = malloc(bufsize); +|[...] +| for (i = 0; i < copies; i++) { +| data = (uint8_t *)(buf[i] + offsetdata); +| uint32_t crc; +| +| ret = devread(ctx, i, buf[i]); +| [...] +| crc = *(uint32_t *)(buf[i] + offsetcrc); +| dev->crc = crc32(0, (uint8_t *)data, usable_envsize); +| + +[0] https://github.com/sbabic/libubootenv/blob/master/src/uboot_env.c#L951 +Fixes: d5542923f200 ("nvmem: add driver handling U-Boot environment variables") +Signed-off-by: Christian Lamparter <chunkeey@gmail.com> +--- + drivers/nvmem/u-boot-env.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/drivers/nvmem/u-boot-env.c ++++ b/drivers/nvmem/u-boot-env.c +@@ -135,7 +135,7 @@ static int u_boot_env_parse(struct u_boo + break; + case U_BOOT_FORMAT_REDUNDANT: + crc32_offset = offsetof(struct u_boot_env_image_redundant, crc32); +- crc32_data_offset = offsetof(struct u_boot_env_image_redundant, mark); ++ crc32_data_offset = offsetof(struct u_boot_env_image_redundant, data); + data_offset = offsetof(struct u_boot_env_image_redundant, data); + break; + } diff --git a/target/linux/generic/backport-5.4/822-v6.2-0002-nvmem-u-boot-env-align-endianness-of-crc32-values.patch b/target/linux/generic/backport-5.4/822-v6.2-0002-nvmem-u-boot-env-align-endianness-of-crc32-values.patch new file mode 100644 index 0000000000..7d6723bb8e --- /dev/null +++ b/target/linux/generic/backport-5.4/822-v6.2-0002-nvmem-u-boot-env-align-endianness-of-crc32-values.patch @@ -0,0 +1,47 @@ +From 0e71cac033bb7689c4dfa2e6814191337ef770f5 Mon Sep 17 00:00:00 2001 +From: INAGAKI Hiroshi <musashino.open@gmail.com> +Date: Thu, 13 Oct 2022 00:51:33 +0900 +Subject: [PATCH] nvmem: u-boot-env: align endianness of crc32 values +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +This patch fixes crc32 error on Big-Endianness system by conversion of +calculated crc32 value. + +Little-Endianness system: + + obtained crc32: Little +calculated crc32: Little + +Big-Endianness system: + + obtained crc32: Little +calculated crc32: Big + +log (APRESIA ApresiaLightGS120GT-SS, RTL8382M, Big-Endianness): + +[ 8.570000] u_boot_env 18001200.spi:flash@0:partitions:partition@c0000: Invalid calculated CRC32: 0x88cd6f09 (expected: 0x096fcd88) +[ 8.580000] u_boot_env: probe of 18001200.spi:flash@0:partitions:partition@c0000 failed with error -22 + +Fixes: f955dc1445069 ("nvmem: add driver handling U-Boot environment variables") + +Signed-off-by: INAGAKI Hiroshi <musashino.open@gmail.com> +Acked-by: Rafał Miłecki <rafal@milecki.pl> +Tested-by: Christian Lamparter <chunkeey@gmail.com> +Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> +--- + drivers/nvmem/u-boot-env.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/drivers/nvmem/u-boot-env.c ++++ b/drivers/nvmem/u-boot-env.c +@@ -143,7 +143,7 @@ static int u_boot_env_parse(struct u_boo + crc32_data_len = priv->mtd->size - crc32_data_offset; + data_len = priv->mtd->size - data_offset; + +- calc = crc32(~0, buf + crc32_data_offset, crc32_data_len) ^ ~0L; ++ calc = le32_to_cpu((__le32)crc32(~0, buf + crc32_data_offset, crc32_data_len) ^ ~0L); + if (calc != crc32) { + dev_err(dev, "Invalid calculated CRC32: 0x%08x (expected: 0x%08x)\n", calc, crc32); + err = -EINVAL; diff --git a/target/linux/generic/backport-5.4/822-v6.2-0003-nvmem-u-boot-env-add-Broadcom-format-support.patch b/target/linux/generic/backport-5.4/822-v6.2-0003-nvmem-u-boot-env-add-Broadcom-format-support.patch new file mode 100644 index 0000000000..429b24f0f3 --- /dev/null +++ b/target/linux/generic/backport-5.4/822-v6.2-0003-nvmem-u-boot-env-add-Broadcom-format-support.patch @@ -0,0 +1,65 @@ +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, }, + {}, + }; + |