From c8d70e3426c8b19a8066dccee5fa8af1b0d5cde9 Mon Sep 17 00:00:00 2001 From: Vishal Mahaveer Date: Thu, 18 Jun 2026 13:56:23 -0500 Subject: [PATCH] fix(u-boot): correct I2C bus number for Vpp programming in eFuse docs Update I2C bus number from 2 to 1 in the eFuse programming documentation. The IO expander controlling the Vpp signal for eFuse programming is connected to I2C bus 1, not bus 2 as previously documented. Signed-off-by: Vishal Mahaveer --- .../Foundational_Components/U-Boot/UG-Key-Writer-Lite.rst | 4 ++-- .../Foundational_Components/U-Boot/UG-Programming-OTPs.rst | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/source/linux/Foundational_Components/U-Boot/UG-Key-Writer-Lite.rst b/source/linux/Foundational_Components/U-Boot/UG-Key-Writer-Lite.rst index 24004f599..e8f569bcb 100644 --- a/source/linux/Foundational_Components/U-Boot/UG-Key-Writer-Lite.rst +++ b/source/linux/Foundational_Components/U-Boot/UG-Key-Writer-Lite.rst @@ -111,11 +111,11 @@ A typical flow to do OTP key writer lite is as follows: which then toggles the IO pin connected to the Vpp pin, thereby controlling the power supply to the pin. On TI EVM, Vpp pin can be turned on using the below commands: - .. rubric:: Select i2c bus 2, as chip 22 is connected to it, and probe the chip: + .. rubric:: Select i2c bus 1, as chip 22 is connected to it, and probe the chip: .. code-block:: text - => i2c dev 2 + => i2c dev 1 => i2c probe 22 .. rubric:: To turn off Vpp: diff --git a/source/linux/Foundational_Components/U-Boot/UG-Programming-OTPs.rst b/source/linux/Foundational_Components/U-Boot/UG-Programming-OTPs.rst index 9fd199866..a75069e5b 100644 --- a/source/linux/Foundational_Components/U-Boot/UG-Programming-OTPs.rst +++ b/source/linux/Foundational_Components/U-Boot/UG-Programming-OTPs.rst @@ -56,8 +56,8 @@ Follow these steps to enable or disable Vpp: .. code-block:: text - # Select i2c bus 2 (chip 22 is connected to it) - => i2c dev 2 + # Select i2c bus 1 (chip 22 is connected to it) + => i2c dev 1 # Probe the chip => i2c probe 22