3f9d24e4c0
The original SHI module only has one output FIFO buffer. It costs a lot when the driver has to send/change the protocol control code because it must fill out all 128 bytes of output FIFO. In npcx4, we introduce another output buffer in 1-byte depth. These two buffers can switch back and forth during the transaction. We can use the single-byte buffer to send the control code and the 128-byte FIFO to send the data payload. It helps improve the SHI driver's efficiency. Signed-off-by: Jun Lin <CHLin56@nuvoton.com> |
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| arc | ||
| arm | ||
| arm64 | ||
| mips | ||
| nios2 | ||
| posix | ||
| riscv | ||
| sparc | ||
| x86 | ||
| xtensa | ||
| CMakeLists.txt | ||
| Kconfig | ||