bump etrax to .25

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@11028 3c298f89-4303-0410-b956-a3cf2f4a3e73

5 files changed, 0 insertions, 2170 deletions

diff --git a/target/linux/etrax/files/arch/cris/arch-v10/drivers/gpio_syscalls.c b/target/linux/etrax/files/arch/cris/arch-v10/drivers/gpio_syscalls.c
deleted file mode 100644
index b6300aa9cd..0000000000
--- a/target/linux/etrax/files/arch/cris/arch-v10/drivers/gpio_syscalls.c
+++ /dev/null
@@ -1,191 +0,0 @@
-#include <linux/autoconf.h>
-
-#include <linux/module.h>
-#include <linux/sched.h>
-#include <linux/slab.h>
-#include <linux/ioport.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/fs.h>
-#include <linux/string.h>
-#include <linux/poll.h>
-#include <linux/init.h>
-#include <linux/interrupt.h>
-
-#include <asm/uaccess.h>
-#include <linux/gpio_syscalls.h>
-
-#include <asm/etraxgpio.h>
-#include <asm/arch/svinto.h>
-#include <asm/io.h>
-#include <asm/system.h>
-#include <asm/irq.h>
-#include <asm/arch/io_interface_mux.h>
-
-#include <asm/unistd.h>
-
-
-extern int errno;
-
-
-asmlinkage void sys_gpiosetbits(unsigned char port, unsigned int bits){
-	switch(port){
-	case 'G':
-	case 'g':
-		*R_PORT_G_DATA = port_g_data_shadow |= bits;
-		break;
-		
-	case 'A':
-	case 'a':
-		*R_PORT_PA_DATA = port_pa_data_shadow |= bits;
-		break;
-
-	case 'B':
-	case 'b':
-		*R_PORT_PB_DATA = port_pb_data_shadow |= bits;
-		break;
-		
-	};
-};
-
-
-asmlinkage void sys_gpioclearbits(unsigned char port, unsigned int bits){
-	switch(port){
-	case 'G':
-	case 'g':
-		*R_PORT_G_DATA = port_g_data_shadow &= ~bits;
-		break;
-		
-	case 'A':
-	case 'a':
-		*R_PORT_PA_DATA = port_pa_data_shadow &= ~bits;
-		break;
-
-	case 'B':
-	case 'b':
-		*R_PORT_PB_DATA = port_pb_data_shadow &= ~bits;
-		break;
-		
-	};
-};
-
-asmlinkage void sys_gpiosetdir(unsigned char port, unsigned char dir, unsigned int bits){
-	if((dir=='I' )||(dir=='i')){
-		switch(port){
-		case 'G':
-		case 'g':
-			if(bits & (1<<0)){
-				genconfig_shadow &= ~IO_MASK(R_GEN_CONFIG, g0dir);
-			};
-			if((bits & 0x0000FF00)==0x0000FF00){
-				genconfig_shadow &= ~IO_MASK(R_GEN_CONFIG, g8_15dir);
-			};			
-			if((bits & 0x00FF0000)==0x00FF0000){
-				genconfig_shadow &= ~IO_MASK(R_GEN_CONFIG, g16_23dir);
-			};			
-			if(bits & (1<<24)){
-				genconfig_shadow &= ~IO_MASK(R_GEN_CONFIG, g24dir);
-			};			
-			*R_GEN_CONFIG = genconfig_shadow;
-			break;
-		
-		case 'A':
-		case 'a':
-			*R_PORT_PA_DIR = port_pa_dir_shadow &= ~(bits & 0xff);
-			break;
-
-		case 'B':
-		case 'b':
-			*R_PORT_PB_DIR = port_pb_dir_shadow &= ~(bits & 0xff);
-			break;
-		};
-	} else if((dir=='O' )||(dir=='o')){
-		switch(port){
-		case 'G':
-		case 'g':
-			if(bits & (1<<0)){
-				genconfig_shadow |= IO_MASK(R_GEN_CONFIG, g0dir);
-			};
-			if((bits & 0x0000FF00)==0x0000FF00){
-				genconfig_shadow |= IO_MASK(R_GEN_CONFIG, g8_15dir);
-			};			
-			if((bits & 0x00FF0000)==0x00FF0000){
-				genconfig_shadow |= IO_MASK(R_GEN_CONFIG, g8_15dir);
-			};			
-			if(bits & (1<<24)){
-				genconfig_shadow |= IO_MASK(R_GEN_CONFIG, g24dir);
-			};			
-			*R_GEN_CONFIG = genconfig_shadow;
-			break;
-		
-		case 'A':
-		case 'a':
-			*R_PORT_PA_DIR = port_pa_dir_shadow |= (bits & 0xff);
-			break;
-
-		case 'B':
-		case 'b':
-			*R_PORT_PB_DIR = port_pb_dir_shadow |= (bits & 0xff);
-			break;
-		};
-	};
-};
-
-
-asmlinkage void sys_gpiotogglebit(unsigned char port, unsigned int bits){
-	switch(port){
-	case 'G':
-	case 'g':
-		if(port_g_data_shadow & bits){
-			*R_PORT_G_DATA = port_g_data_shadow &= ~bits;
-		} else {
-			*R_PORT_G_DATA = port_g_data_shadow |= bits;
-		};
-		break;
-		
-	case 'A':
-	case 'a':
-		if(*R_PORT_PA_DATA & bits){
-			*R_PORT_PA_DATA = port_pa_data_shadow &= ~(bits & 0xff);
-		} else {
-			*R_PORT_PA_DATA = port_pa_data_shadow |= (bits & 0xff);	
-		};
-		break;
-
-	case 'B':
-	case 'b':
-		if(*R_PORT_PB_DATA & bits){
-			*R_PORT_PB_DATA = port_pb_data_shadow &= ~(bits & 0xff);
-		} else {
-			*R_PORT_PB_DATA = port_pb_data_shadow |= (bits & 0xff);	
-		};
-		break;
-		
-	};
-};
-
-
-asmlinkage unsigned int sys_gpiogetbits(unsigned char port, unsigned int bits){
-	unsigned int data = 0;
-	switch(port){
-	case 'G':
-	case 'g':
-		data = *R_PORT_G_DATA;
-		break;
-		
-	case 'A':
-	case 'a':
-		data = *R_PORT_PA_DATA;
-		break;
-
-	case 'B':
-	case 'b':
-		data = *R_PORT_PB_DATA;
-		break;
-		
-	};
-	data &= bits;
-	return data;
-};
-
-
diff --git a/target/linux/etrax/files/drivers/spi/spi_crisv32_gpio.c b/target/linux/etrax/files/drivers/spi/spi_crisv32_gpio.c
deleted file mode 100644
index e31f6fc281..0000000000
--- a/target/linux/etrax/files/drivers/spi/spi_crisv32_gpio.c
+++ /dev/null
@@ -1,262 +0,0 @@
-/*
- * Simple bitbanged-GPIO SPI driver for ETRAX FS et al.
- *
- * Copyright (c) 2007 Axis Communications AB
- *
- * Author: Hans-Peter Nilsson, inspired by earlier work by
- * Andre Spanberg but mostly by copying large parts of
- * spi_s3c24xx_gpio.c, hence also:
- * Copyright (c) 2006 Ben Dooks
- * Copyright (c) 2006 Simtec Electronics
- *
- * 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.
- *
- */
-
-#include <linux/types.h>
-#include <linux/device.h>
-#include <linux/spi/spi.h>
-#include <linux/spi/spi_bitbang.h>
-#include <linux/delay.h>
-#include <linux/platform_device.h>
-#include <asm/io.h>
-#include <asm/arch/board.h>
-
-/* Our main driver state.  */
-
-struct crisv32_spi_hw_info {
-	struct crisv32_iopin sclk;
-	struct crisv32_iopin mosi;
-	struct crisv32_iopin miso;
-	struct crisv32_iopin cs;
-};
-
-/*
- * The driver state hides behind the spi_bitbang state.  We're
- * responsible for allocating that, so we can get a little something
- * for ourselves.
- */
-
-struct crisv32_spi_gpio_devdata {
-	struct spi_bitbang bitbang;
-	struct crisv32_spi_hw_info pins;
-};
-
-/* Helper function getting the driver state from a spi_device.  */
-
-static inline struct crisv32_spi_hw_info *spidev_to_hw(struct spi_device *spi)
-{
-	struct crisv32_spi_gpio_devdata *dd = spi_master_get_devdata(spi->master);
-	return &dd->pins;
-}
-
-/* The SPI-bitbang functions: see spi_bitbang.h at EXPAND_BITBANG_TXRX.  */
-
-static inline void setsck(struct spi_device *spi, int is_on)
-{
-	crisv32_io_set(&spidev_to_hw(spi)->sclk, is_on != 0);
-}
-
-static inline void setmosi(struct spi_device *spi, int is_on)
-{
-	crisv32_io_set(&spidev_to_hw(spi)->mosi, is_on != 0);
-}
-
-static inline u32 getmiso(struct spi_device *spi)
-{
-	return crisv32_io_rd(&spidev_to_hw(spi)->miso) != 0 ? 1 : 0;
-}
-
-#define spidelay(x) ndelay(x)
-
-#define	EXPAND_BITBANG_TXRX
-#include <linux/spi/spi_bitbang.h>
-
-/*
- * SPI-bitbang word transmit-functions for the four SPI modes,
- * dispatching to the inlined functions we just included.
- */
-
-static u32 crisv32_spi_gpio_txrx_mode0(struct spi_device *spi,
-				      unsigned nsecs, u32 word, u8 bits)
-{
-	return bitbang_txrx_be_cpha0(spi, nsecs, 0, word, bits);
-}
-
-static u32 crisv32_spi_gpio_txrx_mode1(struct spi_device *spi,
-				       unsigned nsecs, u32 word, u8 bits)
-{
-	return bitbang_txrx_be_cpha1(spi, nsecs, 0, word, bits);
-}
-
-static u32 crisv32_spi_gpio_txrx_mode2(struct spi_device *spi,
-				      unsigned nsecs, u32 word, u8 bits)
-{
-	return bitbang_txrx_be_cpha0(spi, nsecs, 1, word, bits);
-}
-
-static u32 crisv32_spi_gpio_txrx_mode3(struct spi_device *spi,
-				       unsigned nsecs, u32 word, u8 bits)
-{
-	return bitbang_txrx_be_cpha1(spi, nsecs, 1, word, bits);
-}
-
-/* SPI-bitbang chip-select function.  */
-
-static void crisv32_spi_gpio_chipselect(struct spi_device *spi, int value)
-{
-	if (spi->mode & SPI_CS_HIGH)
-		crisv32_io_set(&spidev_to_hw(spi)->cs,
-			       value == BITBANG_CS_ACTIVE ? 1 : 0);
-	else
-		crisv32_io_set(&spidev_to_hw(spi)->cs,
-			       value == BITBANG_CS_ACTIVE ? 0 : 1);
-}
-
-/* Platform-device probe function.  */
-
-static int __devinit crisv32_spi_gpio_probe(struct platform_device *dev)
-{
-	struct spi_master *master;
-	struct crisv32_spi_gpio_devdata  *dd;
-	struct resource *res;
-	struct crisv32_spi_gpio_controller_data *gc;
-	int ret = 0;
-
-	/*
-	 * We need to get the controller data as a hardware resource,
-	 * or else it wouldn't be available until *after* the
-	 * spi_bitbang_start call!
-	 */
-	res = platform_get_resource_byname(dev, 0, "controller_data_ptr");
-	if (res == NULL) {
-		dev_err(&dev->dev, "can't get controller_data resource\n");
-		return -EIO;
-	}
-
-	gc = (struct crisv32_spi_gpio_controller_data *) res->start;
-
-	master = spi_alloc_master(&dev->dev, sizeof *dd);
-	if (master == NULL) {
-		dev_err(&dev->dev, "failed to allocate spi master\n");
-		ret = -ENOMEM;
-		goto err;
-	}
-
-	dd = spi_master_get_devdata(master);
-	platform_set_drvdata(dev, dd);
-
-	/*
-	 * The device data asks for this driver, and holds the id
-	 * number, which must be unique among the same-type devices.
-	 * We use this as the number of this SPI bus.
-	 */
-	master->bus_num = dev->id;
-
-	/*
-	 * Allocate pins.  Note that thus being allocated as GPIO, we
-	 * don't have to deconfigure them at the end or if something
-	 * fails.
-	 */
-	if ((ret = crisv32_io_get_name(&dd->pins.cs, gc->cs)) != 0
-	    || (ret = crisv32_io_get_name(&dd->pins.miso, gc->miso)) != 0
-	    || (ret = crisv32_io_get_name(&dd->pins.mosi, gc->mosi)) != 0
-	    || (ret = crisv32_io_get_name(&dd->pins.sclk, gc->sclk)) != 0)
-		goto err_no_pins;
-
-	/* Set directions of the SPI pins.  */
-	crisv32_io_set_dir(&dd->pins.cs, crisv32_io_dir_out);
-	crisv32_io_set_dir(&dd->pins.sclk, crisv32_io_dir_out);
-	crisv32_io_set_dir(&dd->pins.miso, crisv32_io_dir_in);
-	crisv32_io_set_dir(&dd->pins.mosi, crisv32_io_dir_out);
-
-	/* Set state of the SPI pins.  */
-	dev_dbg(&dev->dev, "cs.port 0x%x, pin: %d\n"
-		dd->pins.cs.port, dd->pins.cs.bit);
-
-	/*
-	 * Can't use crisv32_spi_gpio_chipselect(spi, 1) here; we
-	 * don't have a proper "spi" until after spi_bitbang_start.
-	 */
-	crisv32_io_set(&dd->pins.cs, 1);
-	crisv32_io_set(&dd->pins.sclk, 0);
-	crisv32_io_set(&dd->pins.mosi, 0);
-
-	/* Setup SPI bitbang adapter hooks.  */
-	dd->bitbang.master = spi_master_get(master);
-	dd->bitbang.chipselect = crisv32_spi_gpio_chipselect;
-
-	dd->bitbang.txrx_word[SPI_MODE_0] = crisv32_spi_gpio_txrx_mode0;
-	dd->bitbang.txrx_word[SPI_MODE_1] = crisv32_spi_gpio_txrx_mode1;
-	dd->bitbang.txrx_word[SPI_MODE_2] = crisv32_spi_gpio_txrx_mode2;
-	dd->bitbang.txrx_word[SPI_MODE_3] = crisv32_spi_gpio_txrx_mode3;
-
-	ret = spi_bitbang_start(&dd->bitbang);
-	if (ret)
-		goto err_no_bitbang;
-
-	printk (KERN_INFO "CRIS v32 SPI driver for GPIO"
-		" (cs: %s, miso: %s, mosi: %s, sclk: %s)\n",
-		gc->cs, gc->miso, gc->mosi, gc->sclk);
-
-	return 0;
-
- err_no_bitbang:
-	spi_master_put(dd->bitbang.master);
- err_no_pins:
-	platform_set_drvdata(dev, NULL);
- err:
-	return ret;
-}
-
-/* Platform-device remove-function.  */
-
-static int __devexit crisv32_spi_gpio_remove(struct platform_device *dev)
-{
-	struct crisv32_spi_gpio_devdata *dd = platform_get_drvdata(dev);
-	int ret;
-
-	ret = spi_bitbang_stop(&dd->bitbang);
-	if (ret != 0)
-		return ret;
-
-	spi_master_put(dd->bitbang.master);
-	platform_set_drvdata(dev, NULL);
-	return 0;
-}
-
-/*
- * For the time being, there's no suspend/resume support to care
- * about, so we let those handlers default to NULL.
- */
-static struct platform_driver crisv32_spi_gpio_drv = {
-	.probe		= crisv32_spi_gpio_probe,
-	.remove		= __devexit_p(crisv32_spi_gpio_remove),
-	.driver		= {
-		.name	= "spi_crisv32_gpio",
-		.owner	= THIS_MODULE,
-	},
-};
-
-/* Module init function.  */
-
-static int __devinit crisv32_spi_gpio_init(void)
-{
-	return platform_driver_register(&crisv32_spi_gpio_drv);
-}
-
-/* Module exit function.  */
-
-static void __devexit crisv32_spi_gpio_exit(void)
-{
-	platform_driver_unregister(&crisv32_spi_gpio_drv);
-}
-
-module_init(crisv32_spi_gpio_init);
-module_exit(crisv32_spi_gpio_exit);
-
-MODULE_DESCRIPTION("CRIS v32 SPI-GPIO Driver");
-MODULE_AUTHOR("Hans-Peter Nilsson, <hp@axis.com>");
-MODULE_LICENSE("GPL");
diff --git a/target/linux/etrax/files/drivers/spi/spi_crisv32_sser.c b/target/linux/etrax/files/drivers/spi/spi_crisv32_sser.c
deleted file mode 100644
index e8d0e4973b..0000000000
--- a/target/linux/etrax/files/drivers/spi/spi_crisv32_sser.c
+++ /dev/null
@@ -1,1566 +0,0 @@
-/*
- * SPI port driver for ETRAX FS et al. using a synchronous serial
- * port, but simplified by using the spi_bitbang framework.
- *
- * Copyright (c) 2007 Axis Communications AB
- *
- * Author: Hans-Peter Nilsson, though copying parts of
- * spi_s3c24xx_gpio.c, hence also:
- * Copyright (c) 2006 Ben Dooks
- * Copyright (c) 2006 Simtec Electronics
- *
- * 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.
- *
- * This driver restricts frequency, polarity, "word" length and endian
- * much more than the hardware does.  I'm happy to unrestrict it, but
- * only with what I can test myself (at time of writing, just SD/MMC
- * SPI) and what people actually test and report.
- */
-
-#include <linux/types.h>
-#include <linux/device.h>
-#include <linux/spi/spi.h>
-#include <linux/spi/spi_bitbang.h>
-#include <linux/delay.h>
-#include <linux/platform_device.h>
-#include <linux/interrupt.h>
-#include <asm/io.h>
-#include <asm/arch/board.h>
-#include <asm/arch/hwregs/reg_map.h>
-#include <asm/arch/hwregs/reg_rdwr.h>
-#include <asm/arch/hwregs/sser_defs.h>
-#include <asm/arch/dma.h>
-#include <asm/arch/hwregs/dma.h>
-
-/* A size "not much larger" than the max typical transfer size.  */
-#define DMA_CHUNKSIZ 512
-
-/*
- * For a transfer expected to take this long, we busy-wait instead of enabling
- * interrupts.
- */
-#define IRQ_USAGE_THRESHOLD_NS 14000
-
-/* A few register access macros to avoid verbiage and reduce typos.  */
-#define REG_RD_DI(reg) REG_RD(dma, regi_dmain, reg)
-#define REG_RD_DO(reg) REG_RD(dma, regi_dmaout, reg)
-#define REG_RD_SSER(reg) REG_RD(sser, regi_sser, reg)
-#define REG_WR_DI(reg, val) REG_WR(dma, regi_dmain, reg, val)
-#define REG_WR_DO(reg, val) REG_WR(dma, regi_dmaout, reg, val)
-#define REG_WR_SSER(reg, val) REG_WR(sser, regi_sser, reg, val)
-#define REG_WRINT_DI(reg, val) REG_WR_INT(dma, regi_dmain, reg, val)
-#define REG_WRINT_DO(reg, val) REG_WR_INT(dma, regi_dmaout, reg, val)
-#define REG_WRINT_SSER(reg, val) REG_WR_INT(sser, regi_sser, reg, val)
-#define REG_RDINT_DI(reg) REG_RD_INT(dma, regi_dmain, reg)
-#define REG_RDINT_DO(reg) REG_RD_INT(dma, regi_dmaout, reg)
-#define REG_RDINT_SSER(reg) REG_RD_INT(sser, regi_sser, reg)
-
-#define DMA_WAIT_UNTIL_RESET(inst)			\
-  do {							\
-	reg_dma_rw_stat r;				\
-	do {						\
-	  	r = REG_RD(dma, (inst), rw_stat);	\
-	} while (r.mode != regk_dma_rst);		\
-  } while (0)
-
-#define DMA_BUSY(inst) (REG_RD(dma, inst, rw_stream_cmd)).busy
-
-/* Our main driver state.  */
-struct crisv32_spi_hw_info {
-	struct crisv32_regi_n_int sser;
-	struct crisv32_regi_n_int dmain;
-	struct crisv32_regi_n_int dmaout;
-
-	reg_sser_rw_cfg cfg;
-	reg_sser_rw_frm_cfg frm_cfg;
-	reg_sser_rw_tr_cfg tr_cfg;
-	reg_sser_rw_rec_cfg rec_cfg;
-	reg_sser_rw_extra extra;
-
-	/* We store the speed in kHz, so we can have expressions
-	 * multiplying 100MHz by * 4 before dividing by it, and still
-	 * keep it in an u32. */
-	u32 effective_speed_kHz;
-
-	/*
-	 * The time in 10s of nanoseconds for half a cycles.
-	 * For convenience and performance; derived from the above.
-	 */
-	u32 half_cycle_delay_ns;
-
-	/* This should be overridable by a module parameter.  */
-	u32 max_speed_Hz;
-
-	/* Pre-computed timout for the max transfer chunk-size.  */
-	u32 dma_timeout;
-
-	struct completion dma_done;
-
-	/*
-	 * If we get a timeout from wait_for_completion_timeout on the
-	 * above, first look at this before panicking.
-	 */
-	u32 dma_actually_done;
-
-	/*
-	 * Resources don't seem available at the remove call, so we
-	 * have to save information we get through them.
-	 */
-	struct crisv32_spi_sser_controller_data *gc;
-};
-
-/*
- * The driver state hides behind the spi_bitbang state; we're
- * responsible for allocating that, so we can get a little something
- * for ourselves.
- */
-struct crisv32_spi_sser_devdata {
-	struct spi_bitbang bitbang;
-	struct crisv32_spi_hw_info hw;
-};
-
-/* Our DMA descriptors that need alignment.  */
-struct crisv32_spi_dma_descrs {
-	dma_descr_context in_ctxt __attribute__ ((__aligned__(32)));
-	dma_descr_context out_ctxt __attribute__ ((__aligned__(32)));
-
-	/*
-	 * The code takes advantage of the fact that in_descr and
-	 * out_descr are on the same cache-line when working around
-	 * the cache-bug in TR 106.
-	 */
-	dma_descr_data in_descr __attribute__ ((__aligned__(16)));
-	dma_descr_data out_descr __attribute__ ((__aligned__(16)));
-};
-
-/*
- * Whatever needs DMA access is here, besides whatever DMA-able memory
- * comes in transfers.
- */
-struct crisv32_spi_dma_cs {
-	struct crisv32_spi_dma_descrs *descrp;
-
-	/* Scratch-buffers when the original was non-DMA.  */
-	u8 rx_buf[DMA_CHUNKSIZ];
-	u8 tx_buf[DMA_CHUNKSIZ];
-};
-
-/*
- * Max speed.  If set, we won't go faster, promise.  May be useful
- * when dealing with weak hardware; misrouted signal paths or various
- * debug-situations.
- */
-static ulong crisv32_spi_speed_limit_Hz = 0;
-
-/* Helper function getting the driver state from a spi_device.  */
-
-static inline struct crisv32_spi_hw_info *spidev_to_hw(struct spi_device *spi)
-{
-	struct crisv32_spi_sser_devdata *dd = spi_master_get_devdata(spi->master);
-	return &dd->hw;
-}
-
-/* SPI-bitbang word transmit-function for non-DMA.  */
-
-static u32 crisv32_spi_sser_txrx_mode3(struct spi_device *spi,
-				       unsigned nsecs, u32 word, u8 bits)
-{
-	struct crisv32_spi_hw_info *hw = spidev_to_hw(spi);
-	u32 regi_sser = hw->sser.regi;
-	reg_sser_rw_ack_intr ack_intr = { .trdy = 1, .rdav = 1 };
-	reg_sser_r_intr intr = {0};
-	reg_sser_rw_tr_data w_data = { .data = (u8) word };
-	reg_sser_r_rec_data r_data;
-	u32 i;
-
-	/*
-	 * The timeout reflects one iteration per 10ns (impossible at
-	 * 200MHz clock even without the ndelay) and a wait for a full
-	 * byte.
-	 */
-	u32 timeout = 1000000/10*8/hw->effective_speed_kHz;
-
-	BUG_ON(bits != 8);
-
-	intr = REG_RD_SSER(r_intr);
-
-	/*
-	 * We should never get xruns when we control the transmitter
-	 * and receiver in register mode.  And if we don't have
-	 * transmitter-ready and data-ready on entry, something's
-	 * seriously fishy.
-	 */
-	if (!intr.trdy || !intr.rdav || intr.orun || intr.urun)
-		panic("sser hardware or SPI driver broken (1) 0x%x\n",
-		      REG_TYPE_CONV(u32, reg_sser_r_intr, intr));
-
-	REG_WR_SSER(rw_ack_intr, ack_intr);
-	REG_WR_SSER(rw_tr_data, w_data);
-
-	for (i = 0; i < timeout; i++) {
-		intr = REG_RD_SSER(r_intr);
-		/* Wait for received data.  */
-		if (intr.rdav)
-			break;
-		ndelay(10);
-	}
-
-	if (!(intr.trdy && intr.rdav) || intr.orun || intr.urun)
-		panic("sser hardware or SPI driver broken (2) 0x%x\n",
-		      REG_TYPE_CONV(u32, reg_sser_r_intr, intr));
-
-	r_data = REG_RD_SSER(r_rec_data);
-	return r_data.data & 0xff;
-}
-
-/*
- * Wait for 1/2 bit-time if the transmitter or receiver is enabled.
- * We need to do this as the data-available indications may arrive
- * right at the edge, with half the last cycle remaining.
- */
-static void inline crisv32_spi_sser_wait_halfabit(struct crisv32_spi_hw_info
-						  *hw)
-{
-	if (hw->cfg.en)
-		ndelay(hw->half_cycle_delay_ns);
-}
-
-/*
- * Assert or de-assert chip-select.
- * We have two functions, with the active one assigned to the bitbang
- * slot at setup, to avoid a performance penalty (1% on reads).
- */
-static void crisv32_spi_sser_chip_select_active_high(struct spi_device *spi,
-						     int value)
-{
-	struct crisv32_spi_hw_info *hw = spidev_to_hw(spi);
-	u32 regi_sser = hw->sser.regi;
-
-	/*
-	 * We may have received data at the "last producing clock
-	 * edge".  Thus we delay for another half a clock cycle.
-	 */
-	crisv32_spi_sser_wait_halfabit(hw);
-
-	hw->frm_cfg.frame_pin_use
-		= value == BITBANG_CS_ACTIVE ? regk_sser_gio1 : regk_sser_gio0;
-	REG_WR_SSER(rw_frm_cfg, hw->frm_cfg);
-}
-
-static void crisv32_spi_sser_chip_select_active_low(struct spi_device *spi,
-						    int value)
-{
-	struct crisv32_spi_hw_info *hw = spidev_to_hw(spi);
-	u32 regi_sser = hw->sser.regi;
-
-	crisv32_spi_sser_wait_halfabit(hw);
-	hw->frm_cfg.frame_pin_use
-		= value == BITBANG_CS_ACTIVE ? regk_sser_gio0 : regk_sser_gio1;
-	REG_WR_SSER(rw_frm_cfg, hw->frm_cfg);
-}
-
-/* Set the transmission speed in Hz.  */
-
-static int crisv32_spi_sser_set_speed_Hz(struct crisv32_spi_hw_info *hw,
-					 u32 Hz)
-{
-	u32 kHz;
-	u32 ns_delay;
-	u32 regi_sser = hw->sser.regi;
-
-	if (Hz > hw->max_speed_Hz)
-		/*
-		 * Should we complain?  Return error?  Current caller
-		 * sequences want just the max speed.
-		 */
-		Hz = hw->max_speed_Hz;
-
-	kHz = Hz/1000;
-
-	/*
-	 * If absolutely needed, we *could* change the base frequency
-	 * and go lower.  Usually, a frequency set higher than wanted
-	 * is a problem but lower isn't.
-	 */
-	if (Hz < 100000000 / 65536 + 1) {
-		printk(KERN_ERR "attempt to set invalid sser speed: %u Hz\n",
-		       Hz);
-		Hz = 100000000 / 65536 + 1;
-	}
-
-	pr_debug("setting sser speed to %u Hz\n", Hz);
-
-	/*
-	 * Avoid going above the requested speed if there's a
-	 * remainder for the 100 MHz clock-divider calculation, but
-	 * don't unnecessarily go below if it's even.
-	 */
-	hw->cfg.clk_div = 100000000/Hz - ((100000000 % Hz) == 0);
-
-	/* Make sure there's no ongoing transmission. */
-	crisv32_spi_sser_wait_halfabit(hw);
-
-	/*
-	 * Wait for 3 times max of the old and the new clock before and after
-	 * changing the frequency.  Not because of documentation or empirical
-	 * need, but because it seems sane to do so.  The three-bit-times
-	 * value is because that's the documented time it takes for a reset to
-	 * take effect.
-	 */
-	ns_delay = 1000000*3/(kHz > hw->effective_speed_kHz
-			      ? kHz : hw->effective_speed_kHz);
-	ndelay(ns_delay);
-	REG_WR_SSER(rw_cfg, hw->cfg);
-	ndelay(ns_delay);
-
-	hw->effective_speed_kHz = kHz;
-
-	/*
-	 * A timeout of twice the time for the largest chunk (not
-	 * counting DMA overhead) plus one jiffy, should be more than
-	 * enough for the transmission.
-	 */
-	hw->dma_timeout = 1 + usecs_to_jiffies(1000*2*DMA_CHUNKSIZ*8/kHz);
-
-	hw->half_cycle_delay_ns
-		= 1000000/2/hw->effective_speed_kHz;
-
-	pr_debug(".clk_div %d, half %d, eff %d\n",
-		 hw->cfg.clk_div, hw->half_cycle_delay_ns,
-		 hw->effective_speed_kHz);
-	return 0;
-}
-
-/*
- * Set up transmitter and receiver for non-DMA access.
- * Unfortunately, it doesn't seem like hispeed works for this mode
- * (mea culpa), so we're stuck with lospeed-mode.  A little slower,
- * but that's what you get for not allocating DMA.
- */
-static int crisv32_setup_spi_sser_for_reg_access(struct crisv32_spi_hw_info *hw)
-{
-	u32 regi_sser = hw->sser.regi;
-
-	reg_sser_rw_cfg cfg = {0};
-	reg_sser_rw_frm_cfg frm_cfg = {0};
-	reg_sser_rw_tr_cfg tr_cfg = {0};
-	reg_sser_rw_rec_cfg rec_cfg = {0};
-	reg_sser_rw_intr_mask mask = {0};
-	reg_sser_rw_extra extra = {0};
-	reg_sser_rw_tr_data tr_data = {0};
-	reg_sser_r_intr intr;
-
-	cfg.en = 0;
-	tr_cfg.tr_en = 1;
-	rec_cfg.rec_en = 1;
-	REG_WR_SSER(rw_cfg, cfg);
-	REG_WR_SSER(rw_tr_cfg, tr_cfg);
-	REG_WR_SSER(rw_rec_cfg, rec_cfg);
-	REG_WR_SSER(rw_intr_mask, mask);
-
-	/*
-	 * See 23.7.2 SPI in the hardware documentation.
-	 * Except our configuration uses bulk mode; MMC/SD-SPI
-	 * isn't isochronous in nature.
-	 * Step 1.
-	 */
-	cfg.gate_clk = regk_sser_yes;
-	cfg.clkgate_in = regk_sser_no;
-	cfg.clkgate_ctrl = regk_sser_tr;
-
-	/* Step 2.  */
-	cfg.out_clk_pol = regk_sser_pos;
-	cfg.out_clk_src = regk_sser_intern_clk;
-
-	/* Step 3.  */
-	tr_cfg.clk_src = regk_sser_intern;
-	rec_cfg.clk_src = regk_sser_intern;
-	frm_cfg.clk_src = regk_sser_intern;
-
-	/* Step 4.  */
-	tr_cfg.clk_pol = regk_sser_neg;
-	rec_cfg.clk_pol = regk_sser_pos;
-	frm_cfg.clk_pol = regk_sser_neg;
-
-	/*
-	 * Step 5: frame pin (PC03 or PD03) is frame; the status pin
-	 * (PC02, PD02) is configured as input.
-	 */
-	frm_cfg.frame_pin_dir = regk_sser_out;
-
-	/*
-	 * Contrary to the doc example, we don't generate the frame
-	 * signal "automatically".  This setting of the frame pin as
-	 * constant 1, reflects an inactive /CS setting, for just idle
-	 * clocking.  When we need to transmit or receive data, we
-	 * change it.
-	 */
-	frm_cfg.frame_pin_use = regk_sser_gio1;
-	frm_cfg.status_pin_dir = regk_sser_in;
-
-	/*
-	 * Step 6.  This is probably not necessary, as we don't
-	 * generate the frame signal automatically.  Nevertheless,
-	 * modified for bulk transmission.
-	 */
-	frm_cfg.out_on = regk_sser_tr;
-	frm_cfg.out_off = regk_sser_tr;
-
-	/* Step 7.  Similarly, maybe not necessary.  */
-	frm_cfg.type = regk_sser_level;
-	frm_cfg.level = regk_sser_neg_lo;
-
-	/* Step 8.  These we have to set according to the bulk mode,
-	 * which for tr_delay is the same as for iso; a value of 1
-	 * means in sync with the frame signal.  For rec_delay, we
-	 * start it at the same time as the transmitter.  See figure
-	 * 23.7 in the hw documentation.  */
-	frm_cfg.tr_delay = 1;
-	frm_cfg.rec_delay = 0;
-
-	/* Step 9.  */
-	tr_cfg.sample_size = 7;
-	rec_cfg.sample_size = 7;
-
-	/* Step 10.  */
-	frm_cfg.wordrate = 7;
-
-	/* Step 11 (but for bulk).  */
-	tr_cfg.rate_ctrl = regk_sser_bulk;
-
-	/*
-	 * Step 12.  Similarly, maybe not necessary; still, modified
-	 * for bulk.
-	 */
-	tr_cfg.frm_src = regk_sser_intern;
-	rec_cfg.frm_src = regk_sser_tx_bulk;
-
-	/* Step 13.  */
-	tr_cfg.mode = regk_sser_lospeed;
-	rec_cfg.mode = regk_sser_lospeed;
-
-	/* Step 14.  */
-	tr_cfg.sh_dir = regk_sser_msbfirst;
-	rec_cfg.sh_dir = regk_sser_msbfirst;
-
-	/*
-	 * Extra step for bulk-specific settings and other general
-	 * settings not specified in the SPI config example.
-	 * It's uncertain whether all of these are needed.
-	 */
-	tr_cfg.bulk_wspace = 1;
-	tr_cfg.use_dma = 0;
-
-	tr_cfg.urun_stop = 1;
-	rec_cfg.orun_stop = 1;
-	rec_cfg.use_dma = 0;
-
-	rec_cfg.fifo_thr = regk_sser_inf;
-	frm_cfg.early_wend = regk_sser_yes;
-
-	cfg.clk_dir = regk_sser_out;
-	tr_cfg.data_pin_use = regk_sser_dout;
-	cfg.base_freq = regk_sser_f100;
-
-	/* Setup for the initial frequency given to us.  */
-	hw->cfg = cfg;
-	crisv32_spi_sser_set_speed_Hz(hw, hw->max_speed_Hz);
-	cfg = hw->cfg;
-
-	/*
-	 * Write it all, except cfg which is already written by
-	 * crisv32_spi_sser_set_speed_Hz.
-	 */
-	REG_WR_SSER(rw_frm_cfg, frm_cfg);
-	REG_WR_SSER(rw_tr_cfg, tr_cfg);
-	REG_WR_SSER(rw_rec_cfg, rec_cfg);
-	REG_WR_SSER(rw_extra, extra);
-
-	/*
-	 * The transmit-register needs to be written before the
-	 * transmitter is enabled, and to get a valid trdy signal
-	 * waiting for us when we want to transmit a byte.  Because
-	 * the "frame event" is that the transmitter is written, this
-	 * will cause a dummy 0xff-byte to be transmitted, but that's
-	 * ok, because /CS is inactive.
-	 */
-	tr_data.data = 0xffff;
-	REG_WR_SSER(rw_tr_data, tr_data);
-
-	/*
-	 * We ack everything interrupt-wise; left-over indicators don't have
-	 * to come from *this* code.
-	 */
-	REG_WRINT_SSER(rw_ack_intr, -1);
-
-	/*
-	 * Wait 3 cycles before enabling, after the transmit register
-	 * has been written.  (This'll be just a few microseconds for
-	 * e.g. 400 KHz.)
-	 */
-	ndelay(3 * 2 * hw->half_cycle_delay_ns);
-	cfg.en = 1;
-
-	REG_WR_SSER(rw_cfg, cfg);
-
-	/*
-	 * Now wait for 8 + 3 cycles.  The 0xff byte should now have
-	 * been transmitted and dummy data received.
-	 */
-	ndelay((8 + 3) * 2 * hw->half_cycle_delay_ns);
-
-	/*
-	 * Sanity-check that we have data-available and the
-	 * transmitter is ready to send new data.
-	 */
-	intr = REG_RD_SSER(r_intr);
-	if (!intr.rdav || !intr.trdy)
-		panic("sser hw or SPI driver broken (3) 0x%x",
-		      REG_TYPE_CONV(u32, reg_sser_r_intr, intr));
-
-	hw->frm_cfg = frm_cfg;
-	hw->tr_cfg = tr_cfg;
-	hw->rec_cfg = rec_cfg;
-	hw->extra = extra;
-	hw->cfg = cfg;
-	return 0;
-}
-
-/* Initialization, maybe fault recovery.  */
-
-static void crisv32_reset_dma_hw(u32 regi)
-{
-	REG_WR_INT(dma, regi, rw_intr_mask, 0);
-
-	DMA_RESET(regi);
-	DMA_WAIT_UNTIL_RESET(regi);
-	DMA_ENABLE(regi);
-	REG_WR_INT(dma, regi, rw_ack_intr, -1);
-
-	DMA_WR_CMD(regi, regk_dma_set_w_size1);
-}
-
-/* Interrupt from SSER, for use with DMA when only the transmitter is used.  */
-
-static irqreturn_t sser_interrupt(int irqno, void *arg)
-{
-	struct crisv32_spi_hw_info *hw = arg;
-	u32 regi_sser = hw->sser.regi;
-	reg_sser_r_intr intr = REG_RD_SSER(r_intr);
-
-	if (intr.tidle == 0 && intr.urun == 0) {
-		printk(KERN_ERR
-		       "sser @0x%x: spurious sser intr, flags: 0x%x\n",
-		       regi_sser, REG_TYPE_CONV(u32, reg_sser_r_intr, intr));
-	} else if (intr.urun == 0) {
-		hw->dma_actually_done = 1;
-		complete(&hw->dma_done);
-	} else {
-		/*
-		 * Make any reception time out and notice the error,
-		 * which it might not otherwise do data was *received*
-		 * successfully.
-		 */
-		u32 regi_dmain = hw->dmain.regi;
-
-		/*
-		 * Recommended practice before acking urun is to turn
-		 * off sser.  That might not be enough to stop DMA-in
-		 * from signalling success if the underrun was late in
-		 * the transmission, so we disable the DMA-in
-		 * interrupts too.
-		 */
-		REG_WRINT_SSER(rw_cfg, 0);
-		REG_WRINT_DI(rw_intr_mask, 0);
-		REG_WRINT_DI(rw_ack_intr, -1);
-	}
-
-	REG_WRINT_SSER(rw_intr_mask, 0);
-
-	/*
-	 * We must at least ack urun together with tidle, but keep it
-	 * simple and ack them all.
-	 */
-	REG_WRINT_SSER(rw_ack_intr, -1);
-
-	return IRQ_HANDLED;
-}
-
-/*
- * Interrupt from receiver DMA connected to SSER, for use when the
- * receiver is used, with or without the transmitter.
- */
-static irqreturn_t rec_dma_interrupt(int irqno, void *arg)
-{
-	struct crisv32_spi_hw_info *hw = arg;
-	u32 regi_dmain = hw->dmain.regi;
-	u32 regi_sser = hw->sser.regi;
-	reg_dma_r_intr intr = REG_RD_DI(r_intr);
-
-	if (intr.data == 0) {
-		printk(KERN_ERR
-		       "sser @0x%x: spurious rec dma intr, flags: 0x%x\n",
-		       regi_dmain, REG_TYPE_CONV(u32, reg_dma_r_intr, intr));
-	} else {
-		hw->dma_actually_done = 1;
-		complete(&hw->dma_done);
-	}
-
-	REG_WRINT_DI(rw_intr_mask, 0);
-
-	/* Avoid false underrun indications; stop all sser interrupts.   */
-	REG_WRINT_SSER(rw_intr_mask, 0);
-	REG_WRINT_SSER(rw_ack_intr, -1);
-
-	REG_WRINT_DI(rw_ack_intr, -1);
-	return IRQ_HANDLED;
-}
-
-/*
- * Set up transmitter and receiver for DMA access.  We use settings
- * from the "Atmel fast flash" example.
- */
-static int crisv32_setup_spi_sser_for_dma_access(struct crisv32_spi_hw_info
-						 *hw)
-{
-	int ret;
-	u32 regi_sser = hw->sser.regi;
-
-	reg_sser_rw_cfg cfg = {0};
-	reg_sser_rw_frm_cfg frm_cfg = {0};
-	reg_sser_rw_tr_cfg tr_cfg = {0};
-	reg_sser_rw_rec_cfg rec_cfg = {0};
-	reg_sser_rw_intr_mask mask = {0};
-	reg_sser_rw_extra extra = {0};
-
-	cfg.en = 0;
-	tr_cfg.tr_en = 1;
-	rec_cfg.rec_en = 1;
-	REG_WR_SSER(rw_cfg, cfg);
-	REG_WR_SSER(rw_tr_cfg, tr_cfg);
-	REG_WR_SSER(rw_rec_cfg, rec_cfg);
-	REG_WR_SSER(rw_intr_mask, mask);
-
-	/*
-	 * See 23.7.5.2 (Atmel fast flash) in the hardware documentation.
-	 * Step 1.
-	 */
-	cfg.gate_clk = regk_sser_no;
-
-	/* Step 2.  */
-	cfg.out_clk_pol = regk_sser_pos;
-
-	/* Step 3.  */
-	cfg.out_clk_src = regk_sser_intern_clk;
-
-	/* Step 4.  */
-	tr_cfg.sample_size = 1;
-	rec_cfg.sample_size = 1;
-
-	/* Step 5.  */
-	frm_cfg.wordrate = 7;
-
-	/* Step 6.  */
-	tr_cfg.clk_src = regk_sser_intern;
-	rec_cfg.clk_src = regk_sser_intern;
-	frm_cfg.clk_src = regk_sser_intern;
-	tr_cfg.clk_pol = regk_sser_neg;
-	frm_cfg.clk_pol = regk_sser_neg;
-
-	/* Step 7.  */
-	rec_cfg.clk_pol = regk_sser_pos;
-
-	/* Step 8.  */
-	frm_cfg.tr_delay = 1;
-
-	/* Step 9.  */
-	frm_cfg.rec_delay = 1;
-
-	/* Step 10.  */
-	tr_cfg.sh_dir = regk_sser_msbfirst;
-	rec_cfg.sh_dir = regk_sser_msbfirst;
-
-	/* Step 11.  */
-	tr_cfg.frm_src = regk_sser_intern;
-	rec_cfg.frm_src = regk_sser_intern;
-
-	/* Step 12.  */
-	tr_cfg.rate_ctrl = regk_sser_iso;
-
-	/*
-	 * Step 13.  Note that 0 != tx_null, so we're good regarding
-	 * the descriptor .md field.
-	 */
-	tr_cfg.eop_stop = 1;
-
-	/* Step 14.  */
-	frm_cfg.frame_pin_use = regk_sser_gio1;
-	frm_cfg.frame_pin_dir = regk_sser_out;
-
-	/* Step 15.  */
-	extra.clkon_en = 1;
-	extra.clkoff_en = 1;
-
-	/* Step 16.  We'll modify this value for each "burst".  */
-	extra.clkoff_cycles = 7;
-
-	/* Step 17.  */
-	cfg.prepare = 1;
-
-	/*
-	 * Things left out from the documented startup procedure.
-	 * It's uncertain whether all of these are needed.
-	 */
-	frm_cfg.status_pin_dir = regk_sser_in;
-	tr_cfg.mode = regk_sser_hispeed;
-	rec_cfg.mode = regk_sser_hispeed;
-	frm_cfg.out_on = regk_sser_intern_tb;
-	frm_cfg.out_off = regk_sser_rec;
-	frm_cfg.type = regk_sser_level;
-	tr_cfg.use_dma = 1;
-	tr_cfg.urun_stop = 1;
-	rec_cfg.orun_stop = 1;
-	rec_cfg.use_dma = 1;
-	rec_cfg.fifo_thr = regk_sser_inf;
-	frm_cfg.early_wend = regk_sser_yes;
-	cfg.clk_dir = regk_sser_out;
-
-	tr_cfg.data_pin_use = regk_sser_dout;
-	cfg.base_freq = regk_sser_f100;
-
-	REG_WR_SSER(rw_frm_cfg, frm_cfg);
-	REG_WR_SSER(rw_tr_cfg, tr_cfg);
-	REG_WR_SSER(rw_rec_cfg, rec_cfg);
-	REG_WR_SSER(rw_extra, extra);
-	REG_WR_SSER(rw_cfg, cfg);
-	hw->frm_cfg = frm_cfg;
-	hw->tr_cfg = tr_cfg;
-	hw->rec_cfg = rec_cfg;
-	hw->extra = extra;
-	hw->cfg = cfg;
-
-	crisv32_spi_sser_set_speed_Hz(hw, hw->max_speed_Hz);
-
-	ret = request_irq(hw->sser.irq, sser_interrupt, 0, "sser", hw);
-	if (ret != 0)
-		goto noirq;
-
-	ret = request_irq(hw->dmain.irq, rec_dma_interrupt, 0, "sser rec", hw);
-	if (ret != 0)
-		goto free_outirq;
-
-	crisv32_reset_dma_hw(hw->dmain.regi);
-	crisv32_reset_dma_hw(hw->dmaout.regi);
-	return 0;
-
-  free_outirq:
-	free_irq(hw->sser.irq, hw);
-  noirq:
-	return ret;
-}
-
-/* SPI-master setup function for non-DMA.  */
-
-static int crisv32_spi_sser_regs_master_setup(struct spi_device *spi)
-{
-	struct crisv32_spi_hw_info *hw = spidev_to_hw(spi);
-	struct spi_bitbang *bitbang = spi_master_get_devdata(spi->master);
-	int ret = 0;
-
-	/* Just do a little initial constraining checks.  */
-	if (spi->bits_per_word == 0)
-		spi->bits_per_word = 8;
-
-	if (spi->bits_per_word != 8)
-		return -EINVAL;
-
-	bitbang->chipselect = (spi->mode & SPI_CS_HIGH) != 0
-		? crisv32_spi_sser_chip_select_active_high
-		: crisv32_spi_sser_chip_select_active_low;
-
-	if (hw->max_speed_Hz == 0) {
-		u32 max_speed_Hz;
-
-		/*
-		 * At this time; at the first call to the SPI master
-		 * setup function, spi->max_speed_hz reflects the
-		 * board-init value.  It will be changed later on by
-		 * the protocol master, but at the master setup call
-		 * is the only time we actually get to see the hw max
-		 * and thus a reasonable time to init the hw field.
-		 */
-
-		/* The module parameter overrides everything.  */
-		if (crisv32_spi_speed_limit_Hz != 0)
-			max_speed_Hz = crisv32_spi_speed_limit_Hz;
-		/*
-		 * I never could get hispeed mode to work for non-DMA.
-		 * We adjust the max speed here (where we could
-		 * presumably fix it), not in the board info file.
-		 */
-		else if (spi->max_speed_hz > 16667000)
-			max_speed_Hz = 16667000;
-		else
-			max_speed_Hz = spi->max_speed_hz;
-
-		hw->max_speed_Hz = max_speed_Hz;
-		spi->max_speed_hz = max_speed_Hz;
-
-		/*
-		 * We also do one-time initialization of the hardware at this
-		 * point.  We could defer to the return to the probe-function
-		 * from spi_bitbang_start, but other hardware setup (like
-		 * subsequent calls to this function before that) would have
-		 * to be deferred until then too.
-		 */
-		ret = crisv32_setup_spi_sser_for_reg_access(hw);
-		if (ret != 0)
-			return ret;
-
-		ret = spi_bitbang_setup(spi);
-		if (ret != 0)
-			return ret;
-
-		dev_info(&spi->dev,
-			 "CRIS v32 SPI driver for sser%d\n",
-			 spi->master->bus_num);
-	}
-
-	return 0;
-}
-
-/*
- * SPI-master setup_transfer-function used for both DMA and non-DMA
- * (single function for DMA, together with spi_bitbang_setup_transfer
- * for non-DMA).
- */
-
-static int crisv32_spi_sser_common_setup_transfer(struct spi_device *spi,
-						  struct spi_transfer *t)
-{
-	struct crisv32_spi_hw_info *hw = spidev_to_hw(spi);
-	u8 bits_per_word;
-	u32 hz;
-	int ret = 0;
-
-	if (t) {
-		bits_per_word = t->bits_per_word;
-		hz = t->speed_hz;
-	} else {
-		bits_per_word = 0;
-		hz = 0;
-	}
-
-	if (bits_per_word == 0)
-		bits_per_word = spi->bits_per_word;
-
-	if (bits_per_word != 8)
-		return -EINVAL;
-
-	if (hz == 0)
-		hz = spi->max_speed_hz;
-
-	if (hz != hw->effective_speed_kHz*1000 && hz != 0)
-		ret = crisv32_spi_sser_set_speed_Hz(hw, hz);
-
-	return ret;
-}
-
-/* Helper for a SPI-master setup_transfer function for non-DMA.  */
-
-static int crisv32_spi_sser_regs_setup_transfer(struct spi_device *spi,
-						struct spi_transfer *t)
-{
-	int ret = crisv32_spi_sser_common_setup_transfer(spi, t);
-
-	if (ret != 0)
-		return ret;
-
-	/* Set up the loop-over-buffer parts.  */
-	return spi_bitbang_setup_transfer (spi, t);
-}
-
-/* SPI-master setup function for DMA.  */
-
-static int crisv32_spi_sser_dma_master_setup(struct spi_device *spi)
-{
-	/*
-	 * As we don't dispatch to the spi_bitbang default function,
-	 * we need to do whatever tests it does; keep it in sync.  On
-	 * the bright side, we can use the spi->controller_state slot;
-	 * we use it for DMA:able memory for the descriptors and
-	 * temporary buffers to copy non-DMA:able transfers.
-	 */
-	struct crisv32_spi_hw_info *hw = spidev_to_hw(spi);
-	struct spi_bitbang *bitbang = spi_master_get_devdata(spi->master);
-	struct crisv32_spi_dma_cs *cs;
-	u32 dmasize;
-	int ret = 0;
-
-	if (hw->max_speed_Hz == 0) {
-		struct crisv32_spi_dma_descrs *descrp;
-		u32 descrp_dma;
-		u32 max_speed_Hz;
-
-		/* The module parameter overrides everything.  */
-		if (crisv32_spi_speed_limit_Hz != 0)
-			max_speed_Hz = crisv32_spi_speed_limit_Hz;
-		/*
-		 * See comment at corresponding statement in
-		 * crisv32_spi_sser_regs_master_setup.
-		 */
-		else
-			max_speed_Hz = spi->max_speed_hz;
-
-		hw->max_speed_Hz = max_speed_Hz;
-		spi->max_speed_hz = max_speed_Hz;
-
-		ret = crisv32_setup_spi_sser_for_dma_access(hw);
-		if (ret != 0)
-			return ret;
-
-		/* Allocate some extra for necessary alignment.  */
-		dmasize = sizeof *cs + 31
-			+ sizeof(struct crisv32_spi_dma_descrs);
-
-		cs = kzalloc(dmasize, GFP_KERNEL | GFP_DMA);
-		if (cs == NULL)
-			return -ENOMEM;
-
-		/*
-		 * Make descriptors aligned within the allocated area,
-		 * some-place after cs.
-		 */
-		descrp = (struct crisv32_spi_dma_descrs *)
-			(((u32) (cs + 1) + 31) & ~31);
-		descrp_dma = virt_to_phys(descrp);
-
-		/* Set up the "constant" parts of the descriptors.  */
-		descrp->out_descr.eol = 1;
-		descrp->out_descr.intr = 1;
-		descrp->out_descr.out_eop = 1;
-		descrp->out_ctxt.saved_data = (dma_descr_data *)
-		  (descrp_dma
-		   + offsetof(struct crisv32_spi_dma_descrs, out_descr));
-		descrp->out_ctxt.next = 0;
-
-		descrp->in_descr.eol = 1;
-		descrp->in_descr.intr = 1;
-		descrp->in_ctxt.saved_data = (dma_descr_data *)
-			(descrp_dma
-			 + offsetof(struct crisv32_spi_dma_descrs, in_descr));
-		descrp->in_ctxt.next = 0;
-
-		cs->descrp = descrp;
-		spi->controller_state = cs;
-
-		init_completion(&hw->dma_done);
-
-		dev_info(&spi->dev,
-			 "CRIS v32 SPI driver for sser%d/DMA\n",
-			 spi->master->bus_num);
-	}
-
-	/* Do our extra constraining checks.  */
-	if (spi->bits_per_word == 0)
-		spi->bits_per_word = 8;
-
-	if (spi->bits_per_word != 8)
-		return -EINVAL;
-
-	/* SPI_LSB_FIRST deliberately left out, and we only support mode 3.  */
-	if ((spi->mode & ~(SPI_TX_1|SPI_CS_HIGH)) != SPI_MODE_3)
-		return -EINVAL;
-
-	bitbang->chipselect = (spi->mode & SPI_CS_HIGH) != 0
-		? crisv32_spi_sser_chip_select_active_high
-		: crisv32_spi_sser_chip_select_active_low;
-
-	ret = bitbang->setup_transfer(spi, NULL);
-	if (ret != 0)
-		return ret;
-
-	/* Remember to de-assert chip-select before the first transfer.  */
-	spin_lock(&bitbang->lock);
-	if (!bitbang->busy) {
-		bitbang->chipselect(spi, BITBANG_CS_INACTIVE);
-		ndelay(hw->half_cycle_delay_ns);
-	}
-	spin_unlock(&bitbang->lock);
-
-	return 0;
-}
-
-/* SPI-master cleanup function for DMA.  */
-
-static void crisv32_spi_sser_dma_cleanup(struct spi_device *spi)
-{
-	kfree(spi->controller_state);
-	spi->controller_state = NULL;
-}
-
-/*
- * Set up DMA transmitter descriptors for a chunk of data.
- * The caller is responsible for working around TR 106.
- */
-static void crisv32_spi_sser_setup_dma_descr_out(u32 regi,
-						 struct crisv32_spi_dma_cs *cs,
-						 u32 out_phys, u32 chunk_len)
-{
-	BUG_ON(chunk_len > DMA_CHUNKSIZ);
-	struct crisv32_spi_dma_descrs *descrp = cs->descrp;
-	u32 descrp_dma = virt_to_phys(descrp);
-
-	descrp->out_descr.buf = (u8 *) out_phys;
-	descrp->out_descr.after = (u8 *) out_phys + chunk_len;
-	descrp->out_ctxt.saved_data_buf = (u8 *) out_phys;
-
-	DMA_START_CONTEXT(regi,
-			  descrp_dma
-			  + offsetof(struct crisv32_spi_dma_descrs, out_ctxt));
-}
-
-/*
- * Set up DMA receiver descriptors for a chunk of data.
- * Also, work around TR 106.
- */
-static void crisv32_spi_sser_setup_dma_descr_in(u32 regi_dmain,
-						struct crisv32_spi_dma_cs *cs,
-						u32 in_phys, u32 chunk_len)
-{
-	BUG_ON(chunk_len > DMA_CHUNKSIZ);
-	struct crisv32_spi_dma_descrs *descrp = cs->descrp;
-	u32 descrp_dma = virt_to_phys(descrp);
-
-	descrp->in_descr.buf = (u8 *) in_phys;
-	descrp->in_descr.after = (u8 *) in_phys + chunk_len;
-	descrp->in_ctxt.saved_data_buf = (u8 *) in_phys;
-
-	flush_dma_descr(&descrp->in_descr, 1);
-
-	DMA_START_CONTEXT(regi_dmain,
-			  descrp_dma
-			  + offsetof(struct crisv32_spi_dma_descrs, in_ctxt));
-}
-
-/*
- * SPI-bitbang txrx_bufs function for DMA.
- * FIXME: We have SG DMA descriptors; use them.
- * (Requires abandoning the spi_bitbang framework if done reasonably.)
- */
-static int crisv32_spi_sser_dma_txrx_bufs(struct spi_device *spi,
-					  struct spi_transfer *t)
-{
-	struct crisv32_spi_dma_cs *cs = spi->controller_state;
-	struct crisv32_spi_hw_info *hw = spidev_to_hw(spi);
-	u32 len = t->len;
-	reg_sser_rw_cfg cfg = hw->cfg;
-	reg_sser_rw_tr_cfg tr_cfg = hw->tr_cfg;
-	reg_sser_rw_rec_cfg rec_cfg = hw->rec_cfg;
-	reg_sser_rw_extra extra = hw->extra;
-	u32 regi_sser = hw->sser.regi;
-	u32 dmain = 0;
-	u32 dmaout = 0;
-	u32 regi_dmain = hw->dmain.regi;
-	u8 *rx_buf = t->rx_buf;
-
-	/*
-	 * Using IRQ+completion is measured to give an overhead of 14
-	 * us, so let's instead busy-wait for the time that would be
-	 * wasted anyway, and get back sooner.  We're not counting in
-	 * other overhead such as the DMA descriptor in the
-	 * time-expression, which causes us to use busy-wait for
-	 * data-lengths that actually take a bit longer than
-	 * IRQ_USAGE_THRESHOLD_NS.  Still, with IRQ_USAGE_THRESHOLD_NS
-	 * = 14000, the threshold is for 20 MHz => 35 bytes, 25 => 44
-	 * and 50 => 88 and the typical SPI transfer lengths for
-	 * SDcard are { 1, 2, 7, 512 } bytes so a more complicated
-	 * would likely give nothing but worse performance due to
-	 * complexity.
-	 */
-	int use_irq = len * hw->half_cycle_delay_ns
-		> IRQ_USAGE_THRESHOLD_NS / 8 / 2;
-
-	if (len > DMA_CHUNKSIZ) {
-		/*
-		 * It should be quite easy to adjust the code if the need
-		 * arises for something much larger than the preallocated
-		 * buffers (which could themselves easily just be increased)
-		 * but still what fits in extra.clkoff_cycles: kmalloc a
-		 * temporary dmaable buffer in this function and free it at
-		 * the end.  No need to optimize rare requests.  Until then,
-		 * we'll keep the code as simple as performance allows.
-		 * Alternatively or if we need to send even larger data,
-		 * consider calling self with the required number of "faked"
-		 * shorter transfers here.
-		 */
-		dev_err(&spi->dev,
-			"Trying to transfer %d > max %d bytes:"
-			" need to adjust the SPI driver\n",
-			len, DMA_CHUNKSIZ);
-		return -EMSGSIZE;
-	}
-
-	/*
-	 * Need to separately tell the hispeed machinery the number of
-	 * bits in this transmission.
-	 */
-	extra.clkoff_cycles = len * 8 - 1;
-
-	if (t->tx_buf != NULL) {
-		if (t->tx_dma == 0) {
-			memcpy(cs->tx_buf, t->tx_buf, len);
-			dmaout = virt_to_phys(cs->tx_buf);
-		} else
-			dmaout = t->tx_dma;
-
-		crisv32_spi_sser_setup_dma_descr_out(hw->dmaout.regi,
-						     cs, dmaout,
-						     len);
-
-		/* No need to do anything for TR 106; this DMA only reads.  */
-		tr_cfg.tr_en = 1;
-		tr_cfg.data_pin_use = regk_sser_dout;
-	} else {
-		tr_cfg.data_pin_use = (spi->mode & SPI_TX_1)
-			? regk_sser_gio1 : regk_sser_gio0;
-		tr_cfg.tr_en = 0;
-	}
-
-	if (rx_buf != 0) {
-		if (t->rx_dma == 0)
-			dmain = virt_to_phys(cs->rx_buf);
-		else
-			dmain = t->rx_dma;
-
-		crisv32_spi_sser_setup_dma_descr_in(regi_dmain, cs,
-						    dmain, len);
-		rec_cfg.rec_en = 1;
-
-		REG_WRINT_SSER(rw_ack_intr, -1);
-		REG_WRINT_DI(rw_ack_intr, -1);
-
-		/*
-		 * If we're receiving, use the rec data interrupt from DMA as
-		 * a signal that the HW is done.
-		 */
-		if (use_irq) {
-			reg_sser_rw_intr_mask mask = { .urun = 1 };
-			reg_dma_rw_intr_mask dmask = { .data = 1 };
-
-			REG_WR_DI(rw_intr_mask, dmask);
-
-			/*
-			 * Catch transmitter underruns too.  We don't
-			 * have to conditionalize that on the
-			 * transmitter being enabled; it's off when
-			 * the transmitter is off.  Any overruns will
-			 * be indicated by a timeout, so we don't have
-			 * to check for that specifically.
-			 */
-			REG_WR_SSER(rw_intr_mask, mask);
-		}
-	} else {
-		rec_cfg.rec_en = 0;
-
-		/*
-		 * Ack previous overrun, underrun and tidle interrupts.  Or
-		 * why not all.  We'll get orun and urun "normally" due to the
-		 * way hispeed is (documented to) work and need to clear them,
-		 * and we'll have a tidle from a previous transmit if we used
-		 * to both receive and transmit, but now only transmit.
-		 */
-		REG_WRINT_SSER(rw_ack_intr, -1);
-
-		if (use_irq) {
-			reg_sser_rw_intr_mask mask = { .urun = 1, .tidle = 1 };
-			REG_WR_SSER(rw_intr_mask, mask);
-		}
-	}
-
-	REG_WR_SSER(rw_rec_cfg, rec_cfg);
-	REG_WR_SSER(rw_tr_cfg, tr_cfg);
-	REG_WR_SSER(rw_extra, extra);
-
-	/*
-	 * Barriers are needed to make sure that the completion inits don't
-	 * migrate past the register writes due to gcc scheduling.
-	 */
-	mb();
-	hw->dma_actually_done = 0;
-	INIT_COMPLETION(hw->dma_done);
-	mb();
-
-	/*
-	 * Wait until DMA tx FIFO has more than one byte (it reads one
-	 * directly then one "very quickly") before starting sser tx.
-	 */
-	if (tr_cfg.tr_en) {
-		u32 regi_dmaout = hw->dmaout.regi;
-		u32 minlen = len > 2 ? 2 : len;
-		while ((REG_RD_DO(rw_stat)).buf < minlen)
-			;
-	}
-
-	/* Wait until DMA-in is finished reading the descriptors.  */
-	if (rec_cfg.rec_en)
-		while (DMA_BUSY(regi_dmain))
-			;
-	/*
-	 * Wait 3 cycles before enabling (with .prepare = 1).
-	 * FIXME: Can we cut this by some time already passed?
-	 */
-	ndelay(3 * 2 * hw->half_cycle_delay_ns);
-	cfg.en = 1;
-	REG_WR_SSER(rw_cfg, cfg);
-
-	/*
-	 * Wait 3 more cycles plus 30 ns before letting go.
-	 * FIXME: Can we do something else before but after the
-	 * previous cfg write and cut this by the time already passed?
-	 */
-	cfg.prepare = 0;
-	hw->cfg = cfg;
-	ndelay(3 * 2 * hw->half_cycle_delay_ns + 30);
-
-	REG_WR_SSER(rw_cfg, cfg);
-
-	/*, We'll disable sser next the time we change the configuration.  */
-	cfg.en = 0;
-	cfg.prepare = 1;
-	hw->cfg = cfg;
-
-	if (!use_irq) {
-		/*
-		 * We use a timeout corresponding to one iteration per ns,
-		 * which of course is at least five * insns / loop times as
-		 * much as reality, but we'll avoid a need for reading hw
-		 * timers directly.
-		 */
-		u32 countdown = IRQ_USAGE_THRESHOLD_NS;
-
-		do
-			if (rec_cfg.rec_en == 0) {
-				/* Using the transmitter only.  */
-				reg_sser_r_intr intr = REG_RD_SSER(r_intr);
-
-				if (intr.tidle != 0) {
-					/*
-					 * Almost done...  Just check if we
-					 * had a transmitter underrun too.
-					 */
-					if (!intr.urun)
-						goto transmission_done;
-
-					/*
-					 * Fall over to the "time is up" case;
-					 * no need to provide a special path
-					 * for the error case.
-					 */
-					countdown = 1;
-				}
-			} else {
-				/* Using at least the receiver.  */
-				if ((REG_RD_DI(r_intr)).data != 0) {
-					if ((REG_RD_SSER(r_intr)).urun == 0)
-						goto transmission_done;
-					countdown = 1;
-				}
-			}
-		while (--countdown != 0);
-
-		/*
-		 * The time is up.  Something might be wrong, or perhaps we've
-		 * started using data lengths where the threshold was about a
-		 * magnitude wrong.  Fall over to IRQ.  Remember not to ack
-		 * interrupts here (but always above, before starting), else
-		 * we'll have a race condition with the interrupt.
-		 */
-		if (!rec_cfg.rec_en) {
-			reg_sser_rw_intr_mask mask = { .urun = 1, .tidle = 1 };
-			REG_WR_SSER(rw_intr_mask, mask);
-		} else {
-			reg_dma_rw_intr_mask dmask = { .data = 1 };
-			reg_sser_rw_intr_mask mask = { .urun = 1 };
-
-			/*
-			 * Never mind checking for tr being disabled; urun
-			 * won't happen then.
-			 */
-			REG_WR_SSER(rw_intr_mask, mask);
-			REG_WR_DI(rw_intr_mask, dmask);
-		}
-	}
-
-	if (!wait_for_completion_timeout(&hw->dma_done, hw->dma_timeout)
-	    /*
-	     * Have to keep track manually too, else we'll get a timeout
-	     * indication for being scheduled out too long, while the
-	     * completion will still have trigged.
-	     */
-	    && !hw->dma_actually_done) {
-		u32 regi_dmaout = hw->dmaout.regi;
-
-		/*
-		 * Transfer timed out.  Should not happen for a
-		 * working controller, except perhaps if the system is
-		 * badly conditioned, causing DMA memory bandwidth
-		 * starvation.  Not much to do afterwards, but perhaps
-		 * reset DMA and sser and hope it works the next time.
-		 */
-		REG_WRINT_SSER(rw_cfg, 0);
-		REG_WR_SSER(rw_cfg, cfg);
-		REG_WRINT_SSER(rw_intr_mask, 0);
-		REG_WRINT_DI(rw_intr_mask, 0);
-		REG_WRINT_SSER(rw_ack_intr, -1);
-		crisv32_reset_dma_hw(hw->dmain.regi);
-		crisv32_reset_dma_hw(hw->dmaout.regi);
-
-		dev_err(&spi->dev, "timeout %u bytes %u kHz\n",
-			len, hw->effective_speed_kHz);
-		dev_err(&spi->dev, "sser=(%x,%x,%x,%x,%x)\n",
-			REG_RDINT_SSER(rw_cfg), REG_RDINT_SSER(rw_tr_cfg),
-			REG_RDINT_SSER(rw_rec_cfg), REG_RDINT_SSER(rw_extra),
-			REG_RDINT_SSER(r_intr));
-		dev_err(&spi->dev, "tx=(%x,%x,%x,%x)\n",
-			dmaout, REG_RDINT_DO(rw_stat), REG_RDINT_DO(rw_data),
-			REG_RDINT_DO(r_intr));
-		dev_err(&spi->dev, "rx=(%x,%x,%x,%x)\n",
-			dmain, REG_RDINT_DI(rw_stat), REG_RDINT_DI(rw_data),
-			REG_RDINT_DI(r_intr));
-		return -EIO;
-	}
-
- transmission_done:
-	/* Wait for the last half-cycle of the last cycle.  */
-	crisv32_spi_sser_wait_halfabit(hw);
-
-	/* Reset for another call.  */
-	REG_WR_SSER(rw_cfg, cfg);
-
-	/*
-	 * If we had to use the temp DMAable rec buffer, copy it to the right
-	 * position.
-	 */
-	if (t->rx_buf != 0 && t->rx_dma == 0)
-		memcpy (t->rx_buf, cs->rx_buf, len);
-
-	/*
-	 * All clear.  The interrupt function disabled the interrupt, we don't
-	 * have to do more.
-	 */
-	return len;
-}
-
-/* Platform-device probe function.  */
-
-static int __devinit crisv32_spi_sser_probe(struct platform_device *dev)
-{
-	struct spi_master *master;
-	struct crisv32_spi_sser_devdata *dd;
-	struct crisv32_spi_hw_info *hw;
-	struct resource *res;
-	struct crisv32_spi_sser_controller_data *gc;
-	int ret;
-
-	/*
-	 * We need to get the controller data as a hardware resource,
-	 * or else it wouldn't be available until *after* the
-	 * spi_bitbang_start call!
-	 */
-	res = platform_get_resource_byname(dev, 0, "controller_data_ptr");
-	if (res == NULL) {
-		dev_err(&dev->dev,
-			"can't get controller_data resource at probe\n");
-		return -EIO;
-	}
-
-	gc = (struct crisv32_spi_sser_controller_data *) res->start;
-
-	master = spi_alloc_master(&dev->dev, sizeof *dd);
-	if (master == NULL) {
-		dev_err(&dev->dev, "failed to allocate spi master\n");
-		ret = -ENOMEM;
-		goto err;
-	}
-
-	dd = spi_master_get_devdata(master);
-	platform_set_drvdata(dev, dd);
-
-	/*
-	 * The device data asks for this driver, and holds the id
-	 * number, which must be unique among the same-type devices.
-	 * We use this as the number of this SPI bus.
-	 */
-	master->bus_num = dev->id;
-
-	/* Setup SPI bitbang adapter hooks.  */
-	dd->bitbang.master = spi_master_get(master);
-	dd->bitbang.chipselect = crisv32_spi_sser_chip_select_active_low;
-
-	hw = &dd->hw;
-	hw->gc = gc;
-
-	/* Pre-spi_bitbang_start setup. */
-	if (gc->using_dma) {
-		/* Setup DMA and interrupts.  */
-		ret = gc->iface_allocate(&hw->sser, &hw->dmain, &hw->dmaout);
-		if (ret != 0)
-			goto err_no_regs;
-
-		dd->bitbang.master->setup = crisv32_spi_sser_dma_master_setup;
-		dd->bitbang.setup_transfer
-			= crisv32_spi_sser_common_setup_transfer;
-		dd->bitbang.txrx_bufs = crisv32_spi_sser_dma_txrx_bufs;
-		dd->bitbang.master->cleanup = crisv32_spi_sser_dma_cleanup;
-	} else {
-		/* Just registers, then.  */
-		ret = gc->iface_allocate(&hw->sser, NULL, NULL);
-		if (ret != 0)
-			goto err_no_regs;
-
-		dd->bitbang.master->setup
-			= crisv32_spi_sser_regs_master_setup;
-		dd->bitbang.setup_transfer
-			= crisv32_spi_sser_regs_setup_transfer;
-		dd->bitbang.master->cleanup = spi_bitbang_cleanup;
-
-		/*
-		 * We can do all modes pretty simply, but I have no
-		 * simple enough way to test them, so I won't.
-		 */
-		dd->bitbang.txrx_word[SPI_MODE_3]
-			= crisv32_spi_sser_txrx_mode3;
-	}
-
-	ret = spi_bitbang_start(&dd->bitbang);
-	if (ret)
-		goto err_no_bitbang;
-
-	/*
-	 * We don't have a dev_info here, as initialization that may fail is
-	 * postponed to the first master->setup call.  It's called from
-	 * spi_bitbang_start (above), where the call-chain doesn't look too
-	 * close at error return values; we'll get here successfully anyway,
-	 * so emitting a separate message here is at most confusing.
-	 */
-	dev_dbg(&dev->dev,
-		"CRIS v32 SPI driver for sser%d%s present\n",
-		master->bus_num,
-		gc->using_dma ? "/DMA" : "");
-
-	return 0;
-
- err_no_bitbang:
-	gc->iface_free();
-
- err_no_regs:
-	platform_set_drvdata(dev, NULL);
-	spi_master_put(dd->bitbang.master);
-
- err:
-	return ret;
-}
-
-/* Platform-device remove-function.  */
-
-static int __devexit crisv32_spi_sser_remove(struct platform_device *dev)
-{
-	struct crisv32_spi_sser_devdata *dd = platform_get_drvdata(dev);
-	struct crisv32_spi_hw_info *hw = &dd->hw;
-	struct crisv32_spi_sser_controller_data *gc = hw->gc;
-	int ret;
-
-	/* We need to stop all bitbanging activity separately.  */
-	ret = spi_bitbang_stop(&dd->bitbang);
-	if (ret != 0)
-		return ret;
-
-	spi_master_put(dd->bitbang.master);
-
-	/*
-	 * If we get here, the queue is empty and there's no activity;
-	 * it's safe to flip the switch on the interfaces.
-	 */
-	if (gc->using_dma) {
-		u32 regi_dmain = hw->dmain.regi;
-		u32 regi_dmaout = hw->dmaout.regi;
-		u32 regi_sser = hw->sser.regi;
-
-		REG_WRINT_SSER(rw_intr_mask, 0);
-		REG_WRINT_DI(rw_intr_mask, 0);
-		REG_WRINT_DO(rw_intr_mask, 0);
-		hw->cfg.en = 0;
-		REG_WR_SSER(rw_cfg, hw->cfg);
-		DMA_RESET(regi_dmain);
-		DMA_RESET(regi_dmaout);
-		free_irq(hw->sser.irq, hw);
-		free_irq(hw->dmain.irq, hw);
-	}
-
-	gc->iface_free();
-
-	platform_set_drvdata(dev, NULL);
-	return 0;
-}
-
-/*
- * For the time being, there's no suspend/resume support to care
- * about, so those handlers default to NULL.
- */
-static struct platform_driver crisv32_spi_sser_drv = {
-	.probe		= crisv32_spi_sser_probe,
-	.remove		= __devexit_p(crisv32_spi_sser_remove),
-	.driver		= {
-		.name	= "spi_crisv32_sser",
-		.owner	= THIS_MODULE,
-	},
-};
-
-/* Module init function.  */
-
-static int __devinit crisv32_spi_sser_init(void)
-{
-	return platform_driver_register(&crisv32_spi_sser_drv);
-}
-
-/* Module exit function.  */
-
-static void __devexit crisv32_spi_sser_exit(void)
-{
-	platform_driver_unregister(&crisv32_spi_sser_drv);
-}
-
-/* Setter function for speed limit.  */
-
-static int crisv32_spi_speed_limit_Hz_setter(const char *val,
-					     struct kernel_param *kp)
-{
-	char *endp;
-	ulong num = simple_strtoul(val, &endp, 0);
-	if (endp == val
-	    || *endp != 0
-	    || num <= 0
-	    /*
-	     * We can't go above 100 MHz speed.  Actually we can't go
-	     * above 50 MHz using the sser support but it might make
-	     * sense trying.
-	     */
-	    || num > 100000000)
-		return -EINVAL;
-	*(ulong *) kp->arg = num;
-	return 0;
-}
-
-module_param_call(crisv32_spi_max_speed_hz,
-		  crisv32_spi_speed_limit_Hz_setter, param_get_ulong,
-		  &crisv32_spi_speed_limit_Hz, 0644);
-
-module_init(crisv32_spi_sser_init);
-module_exit(crisv32_spi_sser_exit);
-
-MODULE_DESCRIPTION("CRIS v32 SPI-SSER Driver");
-MODULE_AUTHOR("Hans-Peter Nilsson, <hp@axis.com>");
-MODULE_LICENSE("GPL");
diff --git a/target/linux/etrax/files/drivers/usb/host/hc-cris-dbg.h b/target/linux/etrax/files/drivers/usb/host/hc-cris-dbg.h
deleted file mode 100644
index f53f5581b1..0000000000
--- a/target/linux/etrax/files/drivers/usb/host/hc-cris-dbg.h
+++ /dev/null
@@ -1,141 +0,0 @@
-
-/* macros for debug output */
-
-#define hcd_dbg(hcd, fmt, args...) \
-	dev_info(hcd->self.controller, fmt, ## args)
-#define hcd_err(hcd, fmt, args...) \
-	dev_err(hcd->self.controller, fmt, ## args)
-#define hcd_info(hcd, fmt, args...) \
-	dev_info(hcd->self.controller, fmt, ## args)
-#define hcd_warn(hcd, fmt, args...) \
-	dev_warn(hcd->self.controller, fmt, ## args)
-
-/*
-#define devdrv_dbg(fmt, args...) \
-        printk(KERN_INFO "usb_devdrv dbg: ");printk(fmt, ## args)
-*/
-#define devdrv_dbg(fmt, args...) {}
-
-#define devdrv_err(fmt, args...) \
-        printk(KERN_ERR "usb_devdrv error: ");printk(fmt, ## args)
-#define devdrv_info(fmt, args...) \
-        printk(KERN_INFO "usb_devdrv: ");printk(fmt, ## args)
-
-#define irq_dbg(fmt, args...) \
-        printk(KERN_INFO "crisv10_irq dbg: ");printk(fmt, ## args)
-#define irq_err(fmt, args...) \
-        printk(KERN_ERR "crisv10_irq error: ");printk(fmt, ## args)
-#define irq_warn(fmt, args...) \
-        printk(KERN_INFO "crisv10_irq warn: ");printk(fmt, ## args)
-#define irq_info(fmt, args...) \
-        printk(KERN_INFO "crisv10_hcd: ");printk(fmt, ## args)
-
-/*
-#define rh_dbg(fmt, args...) \
-  printk(KERN_DEBUG "crisv10_rh dbg: ");printk(fmt, ## args)
-*/
-#define rh_dbg(fmt, args...) {}
-
-#define rh_err(fmt, args...) \
-        printk(KERN_ERR "crisv10_rh error: ");printk(fmt, ## args)
-#define rh_warn(fmt, args...) \
-        printk(KERN_INFO "crisv10_rh warning: ");printk(fmt, ## args)
-#define rh_info(fmt, args...) \
-        printk(KERN_INFO "crisv10_rh: ");printk(fmt, ## args)
-
-/*
-#define tc_dbg(fmt, args...) \
-        printk(KERN_INFO "crisv10_tc dbg: ");printk(fmt, ## args)
-*/
-#define tc_dbg(fmt, args...) {while(0){}}
-
-#define tc_err(fmt, args...) \
-        printk(KERN_ERR "crisv10_tc error: ");printk(fmt, ## args)
-/*
-#define tc_warn(fmt, args...) \
-        printk(KERN_INFO "crisv10_tc warning: ");printk(fmt, ## args)
-*/
-#define tc_warn(fmt, args...) {while(0){}}
-
-#define tc_info(fmt, args...) \
-        printk(KERN_INFO "crisv10_tc: ");printk(fmt, ## args)
-
-
-/* Debug print-outs for various traffic types */
-
-#define intr_warn(fmt, args...) \
-        printk(KERN_INFO "crisv10_intr warning: ");printk(fmt, ## args)
-/*
-#define intr_dbg(fmt, args...) \
-        printk(KERN_DEBUG "crisv10_intr dbg: ");printk(fmt, ## args)
-*/
-#define intr_dbg(fmt, args...) {while(0){}}
-
-
-#define isoc_err(fmt, args...) \
-        printk(KERN_ERR "crisv10_isoc error: ");printk(fmt, ## args)
-/*
-#define isoc_warn(fmt, args...) \
-        printk(KERN_INFO "crisv10_isoc warning: ");printk(fmt, ## args)
-*/
-#define isoc_warn(fmt, args...) {while(0){}}
-
-/*
-#define isoc_dbg(fmt, args...) \
-        printk(KERN_INFO "crisv10_isoc dbg: ");printk(fmt, ## args)
-*/
-#define isoc_dbg(fmt, args...) {while(0){}}
-
-/*
-#define timer_warn(fmt, args...) \
-        printk(KERN_INFO "crisv10_timer warning: ");printk(fmt, ## args)
-*/
-#define timer_warn(fmt, args...) {while(0){}}
-
-/*
-#define timer_dbg(fmt, args...) \
-        printk(KERN_INFO "crisv10_timer dbg: ");printk(fmt, ## args)
-*/
-#define timer_dbg(fmt, args...) {while(0){}}
-
-
-/* Debug printouts for events related to late finishing of URBs */
-/*
-#define late_dbg(fmt, args...) \
-        printk(KERN_INFO "crisv10_late dbg: ");printk(fmt, ## args)
-*/
-#define late_dbg(fmt, args...) {while(0){}}
-
-#define late_warn(fmt, args...) \
-        printk(KERN_INFO "crisv10_late warning: ");printk(fmt, ## args)
-/*
-#define errno_dbg(fmt, args...) \
-        printk(KERN_INFO "crisv10_errno dbg: ");printk(fmt, ## args)
-*/
-#define errno_dbg(fmt, args...) {while(0){}}
-
-
-#define dma_dbg(fmt, args...) \
-        printk(KERN_INFO "crisv10_dma dbg: ");printk(fmt, ## args)
-#define dma_err(fmt, args...) \
-        printk(KERN_ERR "crisv10_dma error: ");printk(fmt, ## args)
-#define dma_warn(fmt, args...) \
-        printk(KERN_INFO "crisv10_dma warning: ");printk(fmt, ## args)
-#define dma_info(fmt, args...) \
-        printk(KERN_INFO "crisv10_dma: ");printk(fmt, ## args)
-
-
-
-#define str_dir(pipe) \
-	(usb_pipeout(pipe) ? "out" : "in")
-#define str_type(pipe) \
-	({								\
-		char *s = "?";						\
-		switch (usb_pipetype(pipe)) {				\
-		case PIPE_ISOCHRONOUS:	s = "iso";  break;		\
-		case PIPE_INTERRUPT:	s = "intr"; break;		\
-		case PIPE_CONTROL:	s = "ctrl"; break;		\
-		case PIPE_BULK:		s = "bulk"; break;		\
-		};							\
-		s;							\
-	})
diff --git a/target/linux/etrax/files/include/linux/mtd/mtdram.h b/target/linux/etrax/files/include/linux/mtd/mtdram.h
deleted file mode 100644
index 400cb240c8..0000000000
--- a/target/linux/etrax/files/include/linux/mtd/mtdram.h
+++ /dev/null
@@ -1,10 +0,0 @@
-#ifndef __MTD_MTDRAM_H__
-#define __MTD_MTDRAM_H__
-
-#ifdef __KERNEL__
-#include <linux/mtd/mtd.h>
-int mtdram_init_device(struct mtd_info *mtd, void *mapped_address, 
-                       unsigned long size, char *name);
-
-#endif /* __KERNEL__ */
-#endif /* __MTD_MTDRAM_H__ */