On 06/11/2014 10:10 PM, Masahiro Yamada wrote: ...
Tegra uses different CPU for SPL and Normal U-boot. That's why Tegra directories are sprinkled under arch/arm/:
arch/arm/cpu/arm720t/tegra-common/ arch/arm/cpu/arm720t/tegra20/ arch/arm/cpu/arm720t/tegra30/ arch/arm/cpu/arm720t/tegra114/ arch/arm/cpu/arm720t/tegra124/ arch/arm/cpu/armv7/tegra-common/ arch/arm/cpu/armv7/tegra20/ arch/arm/cpu/armv7/tegra30/ arch/arm/cpu/armv7/tegra114/ arch/arm/cpu/armv7/tegra124/ arch/arm/include/asm/arch-tegra/ arch/asm/include/asm/arch-tegra20/ arch/asm/include/asm/arch-tegra30/ arch/asm/include/asm/arch-tegra114/ arch/asm/include/asm/arch-tegra124/
This is a deliberate split so that we can control the code/data size of the arm720t (SPL) parts of the code.
They can be refactored
arch/arm/mach-tegra/ : tegra common part arch/arm/mach-tegra/tegra20/ : tegra20-specific arch/arm/mach-tegra/tegra30/ : tegra30-specific arch/arm/mach-tegra/tegra114/ : tegra114-specific arch/arm/mach-tegra/tegra124/ : tegra124-specific
or maybe
arch/arm/plat-tegra/ : tegra common part arch/arm/mach-tegra20/ : tegra20-specific arch/arm/mach-tegra30/ : tegra30-specific arch/arm/mach-tegra114/ : tegra114-specific arch/arm/mach-tegra124/ : tegra124-specific
If we refactor into that structure, the SPL/non-SPL separation will be much less clear.