u-boot.git/arch/arm/mach-tegra, branch master

treewide: move bi_dram[] from bd to gd

2026-06-25T00:13:24Z

Currently, the bi_dram[] information is stored in the board info structure (bd). Because bd is only valid after reserve_board(), dram_init_banksize() must be called late in the initialization process. This limitation is problematic, as it forces us to rely on a variety of bespoke functions to determine board RAM, bank memory sizes, and other early setup requirements. By moving bi_dram[] into the global data (gd), we can run it earlier. This is particularly convenient since boards define their own dram_init_banksize() routines, which do not always rely on parsing Device Tree (DT) memory nodes. Additionally, U-Boot defaults to relocating to the top of the first memory bank. While boards currently use custom functions to override this behavior, having the DRAM bank information available earlier in gd makes relocating to a different bank trivial and standardizes the process. Reviewed-by: Anshul Dalal Tested-by: Michal Simek # Versal Gen 2 Vek385 Tested-by: Anshul Dalal Reviewed-by: Simon Glass Signed-off-by: Ilias Apalodimas Tested-by: Christophe Leroy (CS GROUP)

ARM: tegra: ap: add debug prints for unknown SKU

2026-03-20T15:41:53Z

Add debug log prints with a message that SKU is unknown. Signed-off-by: Ion Agorria Signed-off-by: Svyatoslav Ryhel

ARM: tegra: ap: add default fallback for Tegra20 SKU

2026-03-20T15:41:53Z

Until now all Tegra chips except Tegra20 had a fallback if SKU is not known. This caused issues previously when certain SKU wasn't known. Add a fallback for Tegra20 aligning it with other Tegra SoC generations. Signed-off-by: Ion Agorria Signed-off-by: Svyatoslav Ryhel

ARM: tegra: ap: add support T20 A04 SKU id

2026-03-20T15:41:53Z

Add definition for Tegra20 SKU 0x4 / A04 found in Sony Tablet P. Signed-off-by: Ion Agorria Signed-off-by: Svyatoslav Ryhel

tegra: pmc: Cleanup headers

2026-02-17T19:50:22Z

No gd users, so remove DECLARE_GLOBAL_DATA_PTR and the including of "asm/global_data.h". And include "asm/arch-tegra/tegra.h" to avoid build error. Signed-off-by: Peng Fan

board: microsoft: add Microsoft Surface 2 support

2025-08-20T13:22:49Z

Surface 2 is a Surface-series Windows RT hybrid tablet computer created by Microsoft. Surface 2 uses a 1.7 GHz quad-core Nvidia Tegra 4 chipset with 2 GB of RAM, features 10.6 inch FullHD ClearType HD screen with 16:9 aspect ratio and 32/64 GB of internal memory that can be supplemented with a microSDXC card giving up to 64 GB of additional storage. Signed-off-by: Jonas Schwöbel Signed-off-by: Svyatoslav Ryhel

board: samsung: add Samsung Galaxy R (GT-I9103) and Captivate Glide (SGH-i927) support

2025-08-01T05:46:53Z

The Galaxy R (GT-I9103) and Captivate Glide (SGH-i927) are both Tegra 2 based Samsung smartphones released in 2011. They both feature 1 GB of RAM and 8 GB of expandable flash memory. The key difference is that the Captivate Glide has an OLED panel (contrary to LCD in Galaxy R) and a QWERTY keyboard in form factor of a slider. Signed-off-by: Ion Agorria Reviewed-by: Svyatoslav Ryhel Signed-off-by: Svyatoslav Ryhel

board: chagall: add Pegatron Chagall support

2025-08-01T05:43:41Z

The Pegatron Chagall (originally built by Pegatron, but later rebranded by other vendors under names Fujitsu Stylistic M532, Olivetti Olipad 3, Siragon 4N, Realpad Bunaken, DNS AirTab P110w / P110g etc) is a mostly business-oriented tablet sold in 2012 in different variants, mostly in Europe, with slight differences in storage size (16GB/32GB) and presence of built-in cellular modem. Tested-by: Raffaele Tranquillini Signed-off-by: Svyatoslav Ryhel

ARM: tegra: Use AES engine for crypto functions

2025-08-01T05:43:41Z

Previously software based AES encryption was used with previously known device specific keys (SBK), now that we have AES driver we can simply delegate this to the engine without prior knowledge of the key (assuming it is still loaded). Signed-off-by: Ion Agorria

ARM: tegra: Add LP0 support for ODM production

2025-08-01T05:43:41Z

Now that we have working AES engine driver we can request the warmboot code to be encrypted and signed with SBK if the device requires so. This unlocks LP0 support for most devices in the wild as they use ODM Production Secure. We are not aware of any "ODM Production Open" device nor have access to thus this has not been tested on one, merely added for completeness. Signed-off-by: Ion Agorria