spi: reorganize drivers

Sort the SPI makefile and enforce the naming convention spi_*.c for
spi drivers.

This change also rolls the contents of atmel_spi.h into the .c file
since there is only one user of that particular include file.

v2: - Use 'spi-' prefix instead of 'spi_' to match what seems to be
      be the predominant pattern for subsystem prefixes.
    - Clean up filenames in Kconfig and header comment blocks

Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Acked-by: Wolfram Sang <w.sang@pengutronix.de>
Acked-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 123 insertions, 0 deletions

diff --git a/drivers/spi/spi-fsl-lib.h b/drivers/spi/spi-fsl-lib.h
new file mode 100644
index 000000000000..cbe881b9ea76
--- /dev/null
+++ b/drivers/spi/spi-fsl-lib.h
@@ -0,0 +1,123 @@
+/*
+ * Freescale SPI/eSPI controller driver library.
+ *
+ * Maintainer: Kumar Gala
+ *
+ * Copyright 2010 Freescale Semiconductor, Inc.
+ * Copyright (C) 2006 Polycom, Inc.
+ *
+ * CPM SPI and QE buffer descriptors mode support:
+ * Copyright (c) 2009  MontaVista Software, Inc.
+ * Author: Anton Vorontsov <avorontsov@ru.mvista.com>
+ *
+ * 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_LIB_H__
+#define __SPI_FSL_LIB_H__
+
+#include <asm/io.h>
+
+/* SPI/eSPI Controller driver's private data. */
+struct mpc8xxx_spi {
+        struct device *dev;
+        void *reg_base;
+
+        /* rx & tx bufs from the spi_transfer */
+        const void *tx;
+        void *rx;
+#ifdef CONFIG_SPI_FSL_ESPI
+        int len;
+#endif
+
+        int subblock;
+        struct spi_pram __iomem *pram;
+        struct cpm_buf_desc __iomem *tx_bd;
+        struct cpm_buf_desc __iomem *rx_bd;
+
+        struct spi_transfer *xfer_in_progress;
+
+        /* dma addresses for CPM transfers */
+        dma_addr_t tx_dma;
+        dma_addr_t rx_dma;
+        bool map_tx_dma;
+        bool map_rx_dma;
+
+        dma_addr_t dma_dummy_tx;
+        dma_addr_t dma_dummy_rx;
+
+        /* functions to deal with different sized buffers */
+        void (*get_rx) (u32 rx_data, struct mpc8xxx_spi *);
+        u32(*get_tx) (struct mpc8xxx_spi *);
+
+        /* hooks for different controller driver */
+        void (*spi_do_one_msg) (struct spi_message *m);
+        void (*spi_remove) (struct mpc8xxx_spi *mspi);
+
+        unsigned int count;
+        unsigned int irq;
+
+        unsigned nsecs;         /* (clock cycle time)/2 */
+
+        u32 spibrg;             /* SPIBRG input clock */
+        u32 rx_shift;           /* RX data reg shift when in qe mode */
+        u32 tx_shift;           /* TX data reg shift when in qe mode */
+
+        unsigned int flags;
+
+        struct workqueue_struct *workqueue;
+        struct work_struct work;
+
+        struct list_head queue;
+        spinlock_t lock;
+
+        struct completion done;
+};
+
+struct spi_mpc8xxx_cs {
+        /* functions to deal with different sized buffers */
+        void (*get_rx) (u32 rx_data, struct mpc8xxx_spi *);
+        u32 (*get_tx) (struct mpc8xxx_spi *);
+        u32 rx_shift;           /* RX data reg shift when in qe mode */
+        u32 tx_shift;           /* TX data reg shift when in qe mode */
+        u32 hw_mode;            /* Holds HW mode register settings */
+};
+
+static inline void mpc8xxx_spi_write_reg(__be32 __iomem *reg, u32 val)
+{
+        out_be32(reg, val);
+}
+
+static inline u32 mpc8xxx_spi_read_reg(__be32 __iomem *reg)
+{
+        return in_be32(reg);
+}
+
+struct mpc8xxx_spi_probe_info {
+        struct fsl_spi_platform_data pdata;
+        int *gpios;
+        bool *alow_flags;
+};
+
+extern u32 mpc8xxx_spi_tx_buf_u8(struct mpc8xxx_spi *mpc8xxx_spi);
+extern u32 mpc8xxx_spi_tx_buf_u16(struct mpc8xxx_spi *mpc8xxx_spi);
+extern u32 mpc8xxx_spi_tx_buf_u32(struct mpc8xxx_spi *mpc8xxx_spi);
+extern void mpc8xxx_spi_rx_buf_u8(u32 data, struct mpc8xxx_spi *mpc8xxx_spi);
+extern void mpc8xxx_spi_rx_buf_u16(u32 data, struct mpc8xxx_spi *mpc8xxx_spi);
+extern void mpc8xxx_spi_rx_buf_u32(u32 data, struct mpc8xxx_spi *mpc8xxx_spi);
+
+extern struct mpc8xxx_spi_probe_info *to_of_pinfo(
+                struct fsl_spi_platform_data *pdata);
+extern int mpc8xxx_spi_bufs(struct mpc8xxx_spi *mspi,
+                struct spi_transfer *t, unsigned int len);
+extern int mpc8xxx_spi_transfer(struct spi_device *spi, struct spi_message *m);
+extern void mpc8xxx_spi_cleanup(struct spi_device *spi);
+extern const char *mpc8xxx_spi_strmode(unsigned int flags);
+extern int mpc8xxx_spi_probe(struct device *dev, struct resource *mem,
+                unsigned int irq);
+extern int mpc8xxx_spi_remove(struct device *dev);
+extern int of_mpc8xxx_spi_probe(struct platform_device *ofdev);
+
+#endif /* __SPI_FSL_LIB_H__ */