Tianocore/edk2-platforms.git/Silicon/Atmel, branch CodeCleanup

Silicon/AtSha204a: Test the ControllerHandle is managed by this driver

2021-10-29T17:14:23+00:00

Test the @ControllerHandle is not NULL and is actually managed by this driver. Signed-off-by: Masami Hiramatsu Reviewed-by: Leif Lindholm

Silicon/Atmel: Replace BSD License with BSD+Patent License

2019-05-17T21:22:15+00:00

https://bugzilla.tianocore.org/show_bug.cgi?id=1373 Replace BSD 2-Clause License with BSD+Patent License. This change is based on the following emails: https://lists.01.org/pipermail/edk2-devel/2019-February/036260.html https://lists.01.org/pipermail/edk2-devel/2018-October/030385.html RFCs with detailed process for the license change: V3: https://lists.01.org/pipermail/edk2-devel/2019-March/038116.html V2: https://lists.01.org/pipermail/edk2-devel/2019-March/037669.html V1: https://lists.01.org/pipermail/edk2-devel/2019-March/037500.html Cc: Leif Lindholm Cc: Ard Biesheuvel Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Michael D Kinney Reviewed-by: Leif Lindholm

Silicon/Atmel: add support for AtSha204a RNG

2018-02-22T16:34:03+00:00

This adds support for using the random number generator in the Atmel AtSha204a over I2C. Other functionality of the chip is currently unsupported. Note that the the I2C support in this device essentially violates the protocol layering, by requiring that the device is woken up by driving SDA low for a certain amount of time, which is something that cannot be expressed in terms of an I2C packet sent to the device's slave address. Instead, the slave address 0x0 is added to the device's address array, and the wake is sent by sending a dummy write to address 0x0, and ignoring the subsequent error. This requires the I2C bus to be clocked at 100 kHz. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Ard Biesheuvel Reviewed-by: Leif Lindholm