From e8beacbb85a5c1de1117400c5ddb450514a8372c Mon Sep 17 00:00:00 2001 From: Andreas Larsson Date: Fri, 15 Feb 2013 16:52:21 +0100 Subject: spi/spi-fsl-spi: Make driver usable in CPU mode outside of an FSL_SOC environment This makes the spi-fsl-spi driver usable in CPU mode outside of an FSL_SOC and even an powerpc environment by moving CPM mode functionality to a separate file that is only compiled and linked in an FSL_SOC environment and adding some ifdefs to hide types and functions or provide alternatives. For devicetree probing a "clock-frequency" property is used for clock frequency instead of calls to FSL_SOC-specific functions. Acked-by: Anton Vorontsov Signed-off-by: Andreas Larsson Signed-off-by: Grant Likely --- drivers/spi/spi-fsl-cpm.h | 43 +++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 drivers/spi/spi-fsl-cpm.h (limited to 'drivers/spi/spi-fsl-cpm.h') diff --git a/drivers/spi/spi-fsl-cpm.h b/drivers/spi/spi-fsl-cpm.h new file mode 100644 index 00000000000..c7111580548 --- /dev/null +++ b/drivers/spi/spi-fsl-cpm.h @@ -0,0 +1,43 @@ +/* + * Freescale SPI controller driver cpm functions. + * + * Maintainer: Kumar Gala + * + * Copyright (C) 2006 Polycom, Inc. + * Copyright 2010 Freescale Semiconductor, Inc. + * + * CPM SPI and QE buffer descriptors mode support: + * Copyright (c) 2009 MontaVista Software, Inc. + * Author: Anton Vorontsov + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2 of the License, or (at your + * option) any later version. + */ + +#ifndef __SPI_FSL_CPM_H__ +#define __SPI_FSL_CPM_H__ + +#include "spi-fsl-lib.h" + +#ifdef CONFIG_FSL_SOC +extern void fsl_spi_cpm_reinit_txrx(struct mpc8xxx_spi *mspi); +extern int fsl_spi_cpm_bufs(struct mpc8xxx_spi *mspi, + struct spi_transfer *t, bool is_dma_mapped); +extern void fsl_spi_cpm_bufs_complete(struct mpc8xxx_spi *mspi); +extern void fsl_spi_cpm_irq(struct mpc8xxx_spi *mspi, u32 events); +extern int fsl_spi_cpm_init(struct mpc8xxx_spi *mspi); +extern void fsl_spi_cpm_free(struct mpc8xxx_spi *mspi); +#else +static inline void fsl_spi_cpm_reinit_txrx(struct mpc8xxx_spi *mspi) { } +static inline int fsl_spi_cpm_bufs(struct mpc8xxx_spi *mspi, + struct spi_transfer *t, + bool is_dma_mapped) { return 0; } +static inline void fsl_spi_cpm_bufs_complete(struct mpc8xxx_spi *mspi) { } +static inline void fsl_spi_cpm_irq(struct mpc8xxx_spi *mspi, u32 events) { } +static inline int fsl_spi_cpm_init(struct mpc8xxx_spi *mspi) { return 0; } +static inline void fsl_spi_cpm_free(struct mpc8xxx_spi *mspi) { } +#endif + +#endif /* __SPI_FSL_CPM_H__ */ -- cgit v1.2.3-18-g5258