| /* spi_intel.h - Intel's SPI controller driver utilities */ |
| |
| /* |
| * Copyright (c) 2015 Intel Corporation. |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| #ifndef __SPI_INTEL_H__ |
| #define __SPI_INTEL_H__ |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /* SPI Maximum supported system frequencies */ |
| #define SPI_MAX_CLK_FREQ_25MHZ ((0x800000 << 8)) |
| #define SPI_MAX_CLK_FREQ_20MHz ((0x666666 << 8) | 1) |
| #define SPI_MAX_CLK_FREQ_166667KHZ ((0x800000 << 8) | 2) |
| #define SPI_MAX_CLK_FREQ_13333KHZ ((0x666666 << 8) | 2) |
| #define SPI_MAX_CLK_FREQ_12500KHZ ((0x200000 << 8)) |
| #define SPI_MAX_CLK_FREQ_10MHZ ((0x800000 << 8) | 4) |
| #define SPI_MAX_CLK_FREQ_8MHZ ((0x666666 << 8) | 4) |
| #define SPI_MAX_CLK_FREQ_6250HZ ((0x400000 << 8) | 3) |
| #define SPI_MAX_CLK_FREQ_5MHZ ((0x400000 << 8) | 4) |
| #define SPI_MAX_CLK_FREQ_4MHZ ((0x666666 << 8) | 9) |
| #define SPI_MAX_CLK_FREQ_3125KHZ ((0x80000 << 8)) |
| #define SPI_MAX_CLK_FREQ_2500KHZ ((0x400000 << 8) | 9) |
| #define SPI_MAX_CLK_FREQ_2MHZ ((0x666666 << 8) | 19) |
| #define SPI_MAX_CLK_FREQ_1563KHZ ((0x40000 << 8)) |
| #define SPI_MAX_CLK_FREQ_1250KHZ ((0x200000 << 8) | 9) |
| #define SPI_MAX_CLK_FREQ_1MHZ ((0x400000 << 8) | 24) |
| #define SPI_MAX_CLK_FREQ_800KHZ ((0x666666 << 8) | 49) |
| #define SPI_MAX_CLK_FREQ_781KHZ ((0x20000 << 8)) |
| #define SPI_MAX_CLK_FREQ_625KHZ ((0x200000 << 8) | 19) |
| #define SPI_MAX_CLK_FREQ_500KHZ ((0x400000 << 8) | 49) |
| #define SPI_MAX_CLK_FREQ_400KHZ ((0x666666 << 8) | 99) |
| #define SPI_MAX_CLK_FREQ_390KHZ ((0x10000 << 8)) |
| #define SPI_MAX_CLK_FREQ_250KHZ ((0x400000 << 8) | 99) |
| #define SPI_MAX_CLK_FREQ_200KHZ ((0x666666 << 8) | 199) |
| #define SPI_MAX_CLK_FREQ_195KHZ ((0x8000 << 8)) |
| #define SPI_MAX_CLK_FREQ_125KHZ ((0x100000 << 8) | 49) |
| #define SPI_MAX_CLK_FREQ_100KHZ ((0x200000 << 8) | 124) |
| #define SPI_MAX_CLK_FREQ_50KHZ ((0x100000 << 8) | 124) |
| #define SPI_MAX_CLK_FREQ_20KHZ ((0x80000 << 8) | 124) |
| #define SPI_MAX_CLK_FREQ_10KHZ ((0x20000 << 8) | 77) |
| #define SPI_MAX_CLK_FREQ_5KHZ ((0x20000 << 8) | 154) |
| #define SPI_MAX_CLK_FREQ_1KHZ ((0x8000 << 8) | 194) |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* __SPI_INTEL_H__ */ |
