Revert "bcm53xx: add support for reading NVRAM based on DT mapping"

This reverts commit b0376462c164344d6be9fe1568a9f13ffd8fbb16. Those
changes were rejected and were replaced with an NVMEM driver.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>

1 files changed, 0 insertions, 56 deletions

diff --git a/target/linux/bcm53xx/patches-5.4/181-0001-dt-bindings-firmware-add-Broadcom-s-NVRAM-memory-map.patch b/target/linux/bcm53xx/patches-5.4/181-0001-dt-bindings-firmware-add-Broadcom-s-NVRAM-memory-map.patch
deleted file mode 100644
index 1b0598777c..0000000000
--- a/target/linux/bcm53xx/patches-5.4/181-0001-dt-bindings-firmware-add-Broadcom-s-NVRAM-memory-map.patch
+++ /dev/null
@@ -1,56 +0,0 @@
-From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
-Date: Tue, 2 Mar 2021 08:23:35 +0100
-Subject: [PATCH] dt-bindings: firmware: add Broadcom's NVRAM memory mapping
-
-NVRAM structure contains device data and can be accessed using MMIO.
-
-Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
----
- .../bindings/firmware/brcm,nvram.yaml         | 41 +++++++++++++++++++
- 1 file changed, 41 insertions(+)
- create mode 100644 Documentation/devicetree/bindings/firmware/brcm,nvram.yaml
-
---- /dev/null
-+++ b/Documentation/devicetree/bindings/firmware/brcm,nvram.yaml
-@@ -0,0 +1,41 @@
-+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
-+%YAML 1.2
-+---
-+$id: "http://devicetree.org/schemas/firmware/brcm,nvram.yaml#"
-+$schema: "http://devicetree.org/meta-schemas/core.yaml#"
-+
-+title: Broadcom's NVRAM
-+
-+maintainers:
-+  - Rafał Miłecki <rafal@milecki.pl>
-+
-+description: |
-+  NVRAM is a structure containing device specific environment variables.
-+  It is used for storing device configuration, booting parameters and
-+  calibration data.
-+
-+  It's required very early in booting process and so is made available
-+  using memory mapping.
-+
-+  NVRAM can be found on Broadcom BCM47xx MIPS, Northstar ARM Cortex-A9
-+  and some more devices.
-+
-+properties:
-+  compatible:
-+    const: brcm,nvram
-+
-+  reg:
-+    description: memory region with NVRAM data
-+    maxItems: 1
-+
-+required:
-+  - reg
-+
-+additionalProperties: false
-+
-+examples:
-+  - |
-+    nvram@1e000000 {
-+         compatible = "brcm,nvram";
-+         reg = <0x1e000000 0x10000>;
-+    };