target/linux : drop many arch

1 files changed, 0 insertions, 441 deletions

diff --git a/target/linux/ar71xx/files/drivers/spi/spi-rb4xx-cpld.c b/target/linux/ar71xx/files/drivers/spi/spi-rb4xx-cpld.c
deleted file mode 100644
index a8d5282..0000000
--- a/target/linux/ar71xx/files/drivers/spi/spi-rb4xx-cpld.c
+++ /dev/null
@@ -1,441 +0,0 @@
-/*
- * SPI driver for the CPLD chip on the Mikrotik RB4xx boards
- *
- * Copyright (C) 2010 Gabor Juhos <juhosg@openwrt.org>
- *
- * This file was based on the patches for Linux 2.6.27.39 published by
- * MikroTik for their RouterBoard 4xx series devices.
- *
- * 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/kernel.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/module.h>
-#include <linux/device.h>
-#include <linux/bitops.h>
-#include <linux/spi/spi.h>
-#include <linux/gpio.h>
-#include <linux/slab.h>
-
-#include <asm/mach-ath79/rb4xx_cpld.h>
-
-#define DRV_NAME	"spi-rb4xx-cpld"
-#define DRV_DESC	"RB4xx CPLD driver"
-#define DRV_VERSION	"0.1.0"
-
-#define CPLD_CMD_WRITE_NAND	0x08 /* send cmd, n x send data, send indle */
-#define CPLD_CMD_WRITE_CFG	0x09 /* send cmd, n x send cfg */
-#define CPLD_CMD_READ_NAND	0x0a /* send cmd, send idle, n x read data */
-#define CPLD_CMD_READ_FAST	0x0b /* send cmd, 4 x idle, n x read data */
-#define CPLD_CMD_LED5_ON	0x0c /* send cmd */
-#define CPLD_CMD_LED5_OFF	0x0d /* send cmd */
-
-struct rb4xx_cpld {
-	struct spi_device	*spi;
-	struct mutex		lock;
-	struct gpio_chip	chip;
-	unsigned int		config;
-};
-
-static struct rb4xx_cpld *rb4xx_cpld;
-
-static inline struct rb4xx_cpld *gpio_to_cpld(struct gpio_chip *chip)
-{
-	return container_of(chip, struct rb4xx_cpld, chip);
-}
-
-static int rb4xx_cpld_write_cmd(struct rb4xx_cpld *cpld, unsigned char cmd)
-{
-	struct spi_transfer t[1];
-	struct spi_message m;
-	unsigned char tx_buf[1];
-	int err;
-
-	spi_message_init(&m);
-	memset(&t, 0, sizeof(t));
-
-	t[0].tx_buf = tx_buf;
-	t[0].len = sizeof(tx_buf);
-	spi_message_add_tail(&t[0], &m);
-
-	tx_buf[0] = cmd;
-
-	err = spi_sync(cpld->spi, &m);
-	return err;
-}
-
-static int rb4xx_cpld_write_cfg(struct rb4xx_cpld *cpld, unsigned char config)
-{
-	struct spi_transfer t[1];
-	struct spi_message m;
-	unsigned char cmd[2];
-	int err;
-
-	spi_message_init(&m);
-	memset(&t, 0, sizeof(t));
-
-	t[0].tx_buf = cmd;
-	t[0].len = sizeof(cmd);
-	spi_message_add_tail(&t[0], &m);
-
-	cmd[0] = CPLD_CMD_WRITE_CFG;
-	cmd[1] = config;
-
-	err = spi_sync(cpld->spi, &m);
-	return err;
-}
-
-static int __rb4xx_cpld_change_cfg(struct rb4xx_cpld *cpld, unsigned mask,
-				   unsigned value)
-{
-	unsigned int config;
-	int err;
-
-	config = cpld->config & ~mask;
-	config |= value;
-
-	if ((cpld->config ^ config) & 0xff) {
-		err = rb4xx_cpld_write_cfg(cpld, config);
-		if (err)
-			return err;
-	}
-
-	if ((cpld->config ^ config) & CPLD_CFG_nLED5) {
-		err = rb4xx_cpld_write_cmd(cpld, (value) ? CPLD_CMD_LED5_ON :
-							   CPLD_CMD_LED5_OFF);
-		if (err)
-			return err;
-	}
-
-	cpld->config = config;
-	return 0;
-}
-
-int rb4xx_cpld_change_cfg(unsigned mask, unsigned value)
-{
-	int ret;
-
-	if (rb4xx_cpld == NULL)
-		return -ENODEV;
-
-	mutex_lock(&rb4xx_cpld->lock);
-	ret = __rb4xx_cpld_change_cfg(rb4xx_cpld, mask, value);
-	mutex_unlock(&rb4xx_cpld->lock);
-
-	return ret;
-}
-EXPORT_SYMBOL_GPL(rb4xx_cpld_change_cfg);
-
-int rb4xx_cpld_read_from(unsigned addr, unsigned char *rx_buf,
-			 const unsigned char *verify_buf, unsigned count)
-{
-	const unsigned char cmd[5] = {
-		CPLD_CMD_READ_FAST,
-		(addr >> 16) & 0xff,
-		(addr >> 8) & 0xff,
-		 addr & 0xff,
-		 0
-	};
-	struct spi_transfer t[2] = {
-		{
-			.tx_buf = &cmd,
-			.len = 5,
-		},
-		{
-			.tx_buf = verify_buf,
-			.rx_buf = rx_buf,
-			.len = count,
-			.verify = (verify_buf != NULL),
-		},
-	};
-	struct spi_message m;
-
-	if (rb4xx_cpld == NULL)
-		return -ENODEV;
-
-	spi_message_init(&m);
-	m.fast_read = 1;
-	spi_message_add_tail(&t[0], &m);
-	spi_message_add_tail(&t[1], &m);
-	return spi_sync(rb4xx_cpld->spi, &m);
-}
-EXPORT_SYMBOL_GPL(rb4xx_cpld_read_from);
-
-#if 0
-int rb4xx_cpld_read(unsigned char *buf, unsigned char *verify_buf,
-		    unsigned count)
-{
-	struct spi_transfer t[2];
-	struct spi_message m;
-	unsigned char cmd[2];
-
-	if (rb4xx_cpld == NULL)
-		return -ENODEV;
-
-	spi_message_init(&m);
-	memset(&t, 0, sizeof(t));
-
-	/* send command */
-	t[0].tx_buf = cmd;
-	t[0].len = sizeof(cmd);
-	spi_message_add_tail(&t[0], &m);
-
-	cmd[0] = CPLD_CMD_READ_NAND;
-	cmd[1] = 0;
-
-	/* read data */
-	t[1].rx_buf = buf;
-	t[1].len = count;
-	spi_message_add_tail(&t[1], &m);
-
-	return spi_sync(rb4xx_cpld->spi, &m);
-}
-#else
-int rb4xx_cpld_read(unsigned char *rx_buf, const unsigned char *verify_buf,
-		    unsigned count)
-{
-	static const unsigned char cmd[2] = { CPLD_CMD_READ_NAND, 0 };
-	struct spi_transfer t[2] = {
-		{
-			.tx_buf = &cmd,
-			.len = 2,
-		}, {
-			.tx_buf = verify_buf,
-			.rx_buf = rx_buf,
-			.len = count,
-			.verify = (verify_buf != NULL),
-		},
-	};
-	struct spi_message m;
-
-	if (rb4xx_cpld == NULL)
-		return -ENODEV;
-
-	spi_message_init(&m);
-	spi_message_add_tail(&t[0], &m);
-	spi_message_add_tail(&t[1], &m);
-	return spi_sync(rb4xx_cpld->spi, &m);
-}
-#endif
-EXPORT_SYMBOL_GPL(rb4xx_cpld_read);
-
-int rb4xx_cpld_write(const unsigned char *buf, unsigned count)
-{
-#if 0
-	struct spi_transfer t[3];
-	struct spi_message m;
-	unsigned char cmd[1];
-
-	if (rb4xx_cpld == NULL)
-		return -ENODEV;
-
-	memset(&t, 0, sizeof(t));
-	spi_message_init(&m);
-
-	/* send command */
-	t[0].tx_buf = cmd;
-	t[0].len = sizeof(cmd);
-	spi_message_add_tail(&t[0], &m);
-
-	cmd[0] = CPLD_CMD_WRITE_NAND;
-
-	/* write data */
-	t[1].tx_buf = buf;
-	t[1].len = count;
-	spi_message_add_tail(&t[1], &m);
-
-	/* send idle */
-	t[2].len = 1;
-	spi_message_add_tail(&t[2], &m);
-
-	return spi_sync(rb4xx_cpld->spi, &m);
-#else
-	static const unsigned char cmd = CPLD_CMD_WRITE_NAND;
-	struct spi_transfer t[3] = {
-		{
-			.tx_buf = &cmd,
-			.len = 1,
-		}, {
-			.tx_buf = buf,
-			.len = count,
-			.fast_write = 1,
-		}, {
-			.len = 1,
-			.fast_write = 1,
-		},
-	};
-	struct spi_message m;
-
-	if (rb4xx_cpld == NULL)
-		return -ENODEV;
-
-	spi_message_init(&m);
-	spi_message_add_tail(&t[0], &m);
-	spi_message_add_tail(&t[1], &m);
-	spi_message_add_tail(&t[2], &m);
-	return spi_sync(rb4xx_cpld->spi, &m);
-#endif
-}
-EXPORT_SYMBOL_GPL(rb4xx_cpld_write);
-
-static int rb4xx_cpld_gpio_get(struct gpio_chip *chip, unsigned offset)
-{
-	struct rb4xx_cpld *cpld = gpio_to_cpld(chip);
-	int ret;
-
-	mutex_lock(&cpld->lock);
-	ret = (cpld->config >> offset) & 1;
-	mutex_unlock(&cpld->lock);
-
-	return ret;
-}
-
-static void rb4xx_cpld_gpio_set(struct gpio_chip *chip, unsigned offset,
-				int value)
-{
-	struct rb4xx_cpld *cpld = gpio_to_cpld(chip);
-
-	mutex_lock(&cpld->lock);
-	__rb4xx_cpld_change_cfg(cpld, (1 << offset), !!value << offset);
-	mutex_unlock(&cpld->lock);
-}
-
-static int rb4xx_cpld_gpio_direction_input(struct gpio_chip *chip,
-					   unsigned offset)
-{
-	return -EOPNOTSUPP;
-}
-
-static int rb4xx_cpld_gpio_direction_output(struct gpio_chip *chip,
-					    unsigned offset,
-					    int value)
-{
-	struct rb4xx_cpld *cpld = gpio_to_cpld(chip);
-	int ret;
-
-	mutex_lock(&cpld->lock);
-	ret = __rb4xx_cpld_change_cfg(cpld, (1 << offset), !!value << offset);
-	mutex_unlock(&cpld->lock);
-
-	return ret;
-}
-
-static int rb4xx_cpld_gpio_init(struct rb4xx_cpld *cpld, unsigned int base)
-{
-	int err;
-
-	/* init config */
-	cpld->config = CPLD_CFG_nLED1 | CPLD_CFG_nLED2 | CPLD_CFG_nLED3 |
-		       CPLD_CFG_nLED4 | CPLD_CFG_nCE;
-	rb4xx_cpld_write_cfg(cpld, cpld->config);
-
-	/* setup GPIO chip */
-	cpld->chip.label = DRV_NAME;
-
-	cpld->chip.get = rb4xx_cpld_gpio_get;
-	cpld->chip.set = rb4xx_cpld_gpio_set;
-	cpld->chip.direction_input = rb4xx_cpld_gpio_direction_input;
-	cpld->chip.direction_output = rb4xx_cpld_gpio_direction_output;
-
-	cpld->chip.base = base;
-	cpld->chip.ngpio = CPLD_NUM_GPIOS;
-	cpld->chip.can_sleep = 1;
-	cpld->chip.dev = &cpld->spi->dev;
-	cpld->chip.owner = THIS_MODULE;
-
-	err = gpiochip_add(&cpld->chip);
-	if (err)
-		dev_err(&cpld->spi->dev, "adding GPIO chip failed, err=%d\n",
-			err);
-
-	return err;
-}
-
-static int rb4xx_cpld_probe(struct spi_device *spi)
-{
-	struct rb4xx_cpld *cpld;
-	struct rb4xx_cpld_platform_data *pdata;
-	int err;
-
-	pdata = spi->dev.platform_data;
-	if (!pdata) {
-		dev_dbg(&spi->dev, "no platform data\n");
-		return -EINVAL;
-	}
-
-	cpld = kzalloc(sizeof(*cpld), GFP_KERNEL);
-	if (!cpld) {
-		dev_err(&spi->dev, "no memory for private data\n");
-		return -ENOMEM;
-	}
-
-	mutex_init(&cpld->lock);
-	cpld->spi = spi_dev_get(spi);
-	dev_set_drvdata(&spi->dev, cpld);
-
-	spi->mode = SPI_MODE_0;
-	spi->bits_per_word = 8;
-	err = spi_setup(spi);
-	if (err) {
-		dev_err(&spi->dev, "spi_setup failed, err=%d\n", err);
-		goto err_drvdata;
-	}
-
-	err = rb4xx_cpld_gpio_init(cpld, pdata->gpio_base);
-	if (err)
-		goto err_drvdata;
-
-	rb4xx_cpld = cpld;
-
-	return 0;
-
-err_drvdata:
-	dev_set_drvdata(&spi->dev, NULL);
-	kfree(cpld);
-
-	return err;
-}
-
-static int rb4xx_cpld_remove(struct spi_device *spi)
-{
-	struct rb4xx_cpld *cpld;
-
-	rb4xx_cpld = NULL;
-	cpld = dev_get_drvdata(&spi->dev);
-	dev_set_drvdata(&spi->dev, NULL);
-	kfree(cpld);
-
-	return 0;
-}
-
-static struct spi_driver rb4xx_cpld_driver = {
-	.driver = {
-		.name		= DRV_NAME,
-		.bus		= &spi_bus_type,
-		.owner		= THIS_MODULE,
-	},
-	.probe		= rb4xx_cpld_probe,
-	.remove		= rb4xx_cpld_remove,
-};
-
-static int __init rb4xx_cpld_init(void)
-{
-	return spi_register_driver(&rb4xx_cpld_driver);
-}
-module_init(rb4xx_cpld_init);
-
-static void __exit rb4xx_cpld_exit(void)
-{
-	spi_unregister_driver(&rb4xx_cpld_driver);
-}
-module_exit(rb4xx_cpld_exit);
-
-MODULE_DESCRIPTION(DRV_DESC);
-MODULE_VERSION(DRV_VERSION);
-MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
-MODULE_LICENSE("GPL v2");