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| author | Paul Mackerras <paulus@ozlabs.org> | 2021-06-18 06:43:41 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2021-06-21 14:15:26 +0300 |
| commit | 53d143fe08c24c2ce44ee329e41c2a6aad57ebb5 (patch) | |
| tree | e111b8fcf66124edf4d0541cc4bc09411fcb8e90 /arch/powerpc/Kconfig | |
| parent | c988cfd38e489d9390d253d4392590daf451d87a (diff) | |
| download | linux-53d143fe08c24c2ce44ee329e41c2a6aad57ebb5.tar.xz | |
powerpc: Add Microwatt platform
Microwatt is a FPGA-based implementation of the Power ISA. It
currently only implements little-endian 64-bit mode, and does
not (yet) support SMP, VMX, VSX or transactional memory. It has an
optional FPU, and an optional MMU (required for running Linux,
obviously) which implements a configurable radix tree but not
hypervisor mode or nested radix translation.
This adds a new machine type to support FPGA-based SoCs with a
Microwatt core. CONFIG_MATH_EMULATION can be selected for Microwatt
SOCs which don't have the FPU.
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/YMwWbZVREsVug9R0@thinks.paulus.ozlabs.org
Diffstat (limited to 'arch/powerpc/Kconfig')
| -rw-r--r-- | arch/powerpc/Kconfig | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 72f307f1796b..9bf52e292eda 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -430,7 +430,7 @@ source "kernel/Kconfig.hz" config MATH_EMULATION bool "Math emulation" - depends on 4xx || PPC_8xx || PPC_MPC832x || BOOKE + depends on 4xx || PPC_8xx || PPC_MPC832x || BOOKE || PPC_MICROWATT select PPC_FPU_REGS help Some PowerPC chips designed for embedded applications do not have |