diff options
Diffstat (limited to 'include/asm-arm/plat-s3c24xx/spi.h')
| -rw-r--r-- | include/asm-arm/plat-s3c24xx/spi.h | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/include/asm-arm/plat-s3c24xx/spi.h b/include/asm-arm/plat-s3c24xx/spi.h new file mode 100644 index 000000000000..c420b4ab2b1c --- /dev/null +++ b/include/asm-arm/plat-s3c24xx/spi.h @@ -0,0 +1,55 @@ +/* -*- linux-c -*- + * + * include/asm-arm/plat-s3c24xx/spi.h + * + * Copyright (c) 2008 Digi International Spain + * + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Author : Luis Galdos + * + */ + +#ifndef __ASM_ARM_S3C24XX_SPI_H +#define __ASM_ARM_S3C24XX_SPI_H + +/* Macros for the configuration of the GPIOs */ +#define SPI_MOSI_GPIO_OFFSET 0 +#define SPI_MISO_GPIO_OFFSET 1 +#define SPI_CLK_GPIO_OFFSET 2 +#define SPI_EN_GPIO_OFFSET 3 + +#define MAX_SPI_GPIOS 10 +#define S3C2443_SPI_MAX_CS 1 + +struct s3c24xx_spi_gpio { + unsigned long nr; + unsigned long cfg; +}; + +/* + * The HS SPI controller supports two different input clocks: + * PCLK : 33MHz + * EPLL : 48MHz + */ +enum s3c2443_hsspi_clk { + S3C2443_HSSPI_INCLK_EPLL, + S3C2443_HSSPI_INCLK_PCLK, +}; + +/* Platform data for the SPI-controller */ +struct s3c2443_spi_info { + signed short bus_num; + struct s3c24xx_spi_gpio mosi; + struct s3c24xx_spi_gpio miso; + struct s3c24xx_spi_gpio clk; + struct s3c24xx_spi_gpio cs[S3C2443_SPI_MAX_CS]; + unsigned int num_chipselect; + enum s3c2443_hsspi_clk input_clk; +}; + + +#endif /* __ASM_ARM_S3C24XX_SPI_H */ |