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utils: Add the omnia-eeprom utility 

Add a new utility, `omnia-eeprom`, which can be used to print / set
EEPROM fields on Turris Omnia.

One example when this utility might be useful is if the board
experiences random crashes due to newer versions of the DDR training
algorithm in newer U-Boot. The user can change the DDR speed from 1600K
to 1333H to solve these issues, with

  ```
  omnia-eeprom set ddr_speed 1333H
  ```

Signed-off-by: Marek Behún <kabel@kernel.org>
Link: https://github.com/openwrt/openwrt/pull/16264
Signed-off-by: Robert Marko <robimarko@gmail.com>
This commit is contained in:
Marek Behún 2024-11-15 10:01:35 +01:00 committed by Robert Marko
parent 8c018dcb56
commit 749a43325b
2 changed files with 58 additions and 1 deletions
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56
package/utils/omnia-eeprom/Makefile Normal file
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@ -0,0 +1,56 @@
#
# Copyright (C) 2024 Marek Behún <kabel@kernel.org>
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
include $(TOPDIR)/rules.mk
PKG_NAME:=omnia-eeprom
PKG_VERSION:=0.1
PKG_RELEASE:=1
PKG_SOURCE_SUBDIR:=$(PKG_NAME)-v$(PKG_VERSION)
PKG_SOURCE:=$(PKG_NAME)-v$(PKG_VERSION).tar.bz2
PKG_SOURCE_URL:=https://gitlab.nic.cz/turris/omnia-eeprom/-/archive/v$(PKG_VERSION)/
PKG_HASH:=6f949d0b8080adca8bae088774ce615b563ba6ec2807cce97ee6769b4eee7bbf
PKG_MAINTAINER:=Marek Behun <kabel@kernel.org>
PKG_LICENSE:=GPL-2.0-or-later
PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_SOURCE_SUBDIR)
include $(INCLUDE_DIR)/package.mk
define Package/omnia-eeprom
SECTION:=utils
CATEGORY:=Utilities
URL:=https://gitlab.nic.cz/turris/omnia-eeprom
TITLE:=CZ.NIC Turris Omnia EEPROM accessing utility
DEPENDS:=@TARGET_mvebu_cortexa9_DEVICE_cznic_turris-omnia +kmod-eeprom-at24
endef
define Package/omnia-eeprom/description
This package contains the omnia-eeprom utility, which allows you to display
and update EEPROM fields on the Turris Omnia router.
The EEPROM is normally not meant to be updated by users, but there are some
exceptions where it might be useful.
One such example is to change the DDR3 speed from the default 1600K mode to
1333H mode, in order to solve random crashes that occur on some boards with
newer versions of the U-Boot bootloader (because of bugs in newer versions of
the DDR training algorithm).
endef
MAKE_VARS += OMNIA_EEPROM_VERSION="v$(PKG_VERSION)"
TARGET_CFLAGS += -Wall
Build/Compile = $(Build/Compile/Default)
define Package/omnia-eeprom/install
$(INSTALL_DIR) $(1)/usr/bin
$(INSTALL_BIN) $(PKG_BUILD_DIR)/omnia-eeprom $(1)/usr/bin/
endef
$(eval $(call BuildPackage,omnia-eeprom))

3
target/linux/mvebu/image/cortexa9.mk
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@ -107,7 +107,8 @@ define Device/cznic_turris-omnia
mkf2fs e2fsprogs kmod-fs-vfat kmod-nls-cp437 kmod-nls-iso8859-1 \
wpad-basic-mbedtls kmod-ath9k kmod-ath10k-ct ath10k-firmware-qca988x-ct \
kmod-mt7915-firmware partx-utils kmod-i2c-mux-pca954x kmod-leds-turris-omnia \
kmod-turris-omnia-mcu kmod-gpio-button-hotplug omnia-mcu-firmware omnia-mcutool
kmod-turris-omnia-mcu kmod-gpio-button-hotplug omnia-eeprom omnia-mcu-firmware \
omnia-mcutool
IMAGES := sysupgrade.img.gz
IMAGE/sysupgrade.img.gz := boot-scr | boot-img | sdcard-img | gzip | append-metadata
SUPPORTED_DEVICES += armada-385-turris-omnia