u-boot.git/arch/mips/mach-mtmips/include, branch master

mips: mtmips: add support for MediaTek MT7620 SoC

2021-01-24T20:39:26+00:00

This patch adds support for MediaTek MT7620 SoC.
All files are dedicated for u-boot.

Reviewed-by: Stefan Roese 
Signed-off-by: Weijie Gao

mips: mtmips: add support to initialize SDRAM

2021-01-24T20:39:26+00:00

This patch adds support for mtmips SoCs to initialize the SDRAM.

Reviewed-by: Stefan Roese 
Signed-off-by: Weijie Gao

mips: mtmips: add SPL support

2020-04-27T18:30:12+00:00

This patch adds SPL support for mtmips platform. The lowlevel architecture
is split into SPL and the rest parts are built into a memory loadable
u-boot image. Optional SPL_DM and OF_CONTROL are also supported.

The increment of size is very small (< 10 KiB) if SPL_DM and OF_CONTROL are
not enabled and the memory bootable u-boot (u-boot.img) is generated
automatically so there is not need to add a separate config for it.

A lzma compressed payload (u-boot-lzma.img) is also generated and it will
be combined with u-boot-spl.bin to form the unified ROM bootable binary
u-boot-mtmips.bin.

A spl loader is added to support uncompress the payload.

Reviewed-by: Stefan Roese 
Signed-off-by: Weijie Gao

mips: mtmips: rewrite lowlevel codes of mt7628

2020-04-27T18:29:33+00:00

This patch rewrites the mtmips architecture with the following changes:

1. Move MT7628 soc parts into a subfolder.
2. Lock parts of D-Cache as temporary stack.
3. Reimplement DDR initialization in C language.
4. Reimplement DDR calibration in a clear logic.
5. Add full support for auto size detection for DDR1 and DDR2.
6. Use accurate CPU clock depending on the input xtal frequency for timer
   and delay functions.

Note:

print_cpuinfo() has incompatible parts with MT7620 so it's moved into
mt7628 subfolder.

Reviewed-by: Stefan Roese 
Reviewed-by: Daniel Schwierzeck 
Signed-off-by: Weijie Gao