cns21xx: remove 3.8 support

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

SVN-Revision: 37973

1 files changed, 0 insertions, 578 deletions

diff --git a/target/linux/cns21xx/patches-3.8/105-cns21xx-spi-driver.patch b/target/linux/cns21xx/patches-3.8/105-cns21xx-spi-driver.patch
deleted file mode 100644
index 83c0361507..0000000000
--- a/target/linux/cns21xx/patches-3.8/105-cns21xx-spi-driver.patch
+++ /dev/null
@@ -1,578 +0,0 @@
---- a/include/linux/spi/spi.h
-+++ b/include/linux/spi/spi.h
-@@ -510,6 +510,8 @@ struct spi_transfer {
- 	u16		delay_usecs;
- 	u32		speed_hz;
- 
-+	unsigned	last_in_message_list;
-+
- 	struct list_head transfer_list;
- };
- 
---- a/drivers/spi/Kconfig
-+++ b/drivers/spi/Kconfig
-@@ -186,6 +186,14 @@ config SPI_GPIO_OLD
- 
- 	  If unsure, say N.
- 
-+config SPI_CNS21XX
-+	tristate "Cavium Netowrks CNS21xx SPI master"
-+	depends on ARCH_CNS21XX && EXPERIMENTAL
-+	select SPI_BITBANG
-+	help
-+	  This driver supports the buil-in SPI controller of the Cavium Networks
-+	  CNS21xx SoCs.
-+
- config SPI_IMX
- 	tristate "Freescale i.MX SPI controllers"
- 	depends on ARCH_MXC
---- a/drivers/spi/Makefile
-+++ b/drivers/spi/Makefile
-@@ -20,6 +20,7 @@ obj-$(CONFIG_SPI_BFIN_SPORT)		+= spi-bfi
- obj-$(CONFIG_SPI_BITBANG)		+= spi-bitbang.o
- obj-$(CONFIG_SPI_BUTTERFLY)		+= spi-butterfly.o
- obj-$(CONFIG_SPI_CLPS711X)		+= spi-clps711x.o
-+obj-$(CONFIG_SPI_CNS21XX)		+= spi-cns21xx.o
- obj-$(CONFIG_SPI_COLDFIRE_QSPI)		+= spi-coldfire-qspi.o
- obj-$(CONFIG_SPI_DAVINCI)		+= spi-davinci.o
- obj-$(CONFIG_SPI_DESIGNWARE)		+= spi-dw.o
---- a/drivers/spi/spi-bitbang.c
-+++ b/drivers/spi/spi-bitbang.c
-@@ -328,6 +328,13 @@ static void bitbang_work(struct work_str
- 				 */
- 				if (!m->is_dma_mapped)
- 					t->rx_dma = t->tx_dma = 0;
-+
-+				if (t->transfer_list.next == &m->transfers) {
-+					t->last_in_message_list = 1;
-+				} else {
-+					t->last_in_message_list = 0;
-+				}
-+
- 				status = bitbang->txrx_bufs(spi, t);
- 			}
- 			if (status > 0)
---- /dev/null
-+++ b/drivers/spi/spi-cns21xx.c
-@@ -0,0 +1,521 @@
-+/*
-+ *  Copyright (c) 2008 Cavium Networks
-+ *  Copyright (c) 2010-2012 Gabor Juhos <juhosg@openwrt.org>
-+ *
-+ *  This file 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/init.h>
-+#include <linux/module.h>
-+#include <linux/spinlock.h>
-+#include <linux/workqueue.h>
-+#include <linux/interrupt.h>
-+#include <linux/delay.h>
-+#include <linux/errno.h>
-+#include <linux/platform_device.h>
-+#include <linux/io.h>
-+#include <linux/spi/spi.h>
-+#include <linux/spi/spi_bitbang.h>
-+
-+#include <mach/hardware.h>
-+#include <mach/cns21xx.h>
-+
-+#define DRIVER_NAME	"cns21xx-spi"
-+
-+#ifdef CONFIG_CNS21XX_SPI_DEBUG
-+#define DBG(fmt, args...)	pr_info("[CNS21XX_SPI_DEBUG]" fmt, ## args)
-+#else
-+#define DBG(fmt, args...)	do {} while (0)
-+#endif /*  CNS21XX_SPI_DEBUG */
-+
-+#define SPI_REG_CFG			0x40
-+#define SPI_REG_STAT			0x44
-+#define SPI_REG_BIT_RATE		0x48
-+#define SPI_REG_TX_CTRL			0x4c
-+#define SPI_REG_TX_DATA			0x50
-+#define SPI_REG_RX_CTRL			0x54
-+#define SPI_REG_RX_DATA			0x58
-+#define SPI_REG_FIFO_TX_CFG		0x5c
-+#define SPI_REG_FIFO_TX_CTRL		0x60
-+#define SPI_REG_FIFO_RX_CFG		0x64
-+#define SPI_REG_INTR_STAT		0x68
-+#define SPI_REG_INTR_ENA		0x6c
-+
-+#define CFG_SPI_EN			BIT(31)
-+#define CFG_SPI_CLKPOL			BIT(14)
-+#define CFG_SPI_CLKPHA			BIT(13)
-+#define CFG_SPI_MASTER_EN		BIT(11)
-+#define CFG_SPI_CHAR_LEN_M		0x3
-+#define CFG_SPI_CHAR_LEN_8BITS		0
-+#define CFG_SPI_CHAR_LEN_16BITS		1
-+#define CFG_SPI_CHAR_LEN_24BITS		2
-+#define CFG_SPI_CHAR_LEN_32BITS		3
-+
-+#define STAT_SPI_BUSY_STA		BIT(1)
-+
-+#define BIT_RATE_DIV_1			0
-+#define BIT_RATE_DIV_2			1
-+#define BIT_RATE_DIV_4			2
-+#define BIT_RATE_DIV_8			3
-+#define BIT_RATE_DIV_16			4
-+#define BIT_RATE_DIV_32			5
-+#define BIT_RATE_DIV_64			6
-+#define BIT_RATE_DIV_128		7
-+
-+#define TX_CTRL_SPI_TXDAT_EOF		BIT(2)
-+#define TX_CTRL_SPI_TXCH_NUM_M		0x3
-+#define TX_CTRL_CLEAR_MASK		(TX_CTRL_SPI_TXDAT_EOF | \
-+					 TX_CTRL_SPI_TXCH_NUM_M)
-+
-+#define RX_CTRL_SPI_RXDAT_EOF		BIT(2)
-+#define RX_CTRL_SPI_RXCH_NUM_M		0x3
-+
-+#define INTR_STAT_SPI_TXBF_UNRN_FG	BIT(7)
-+#define INTR_STAT_SPI_RXBF_OVRN_FG	BIT(6)
-+#define INTR_STAT_SPI_TXFF_UNRN_FG	BIT(5)
-+#define INTR_STAT_SPI_RXFF_OVRN_FG	BIT(4)
-+#define INTR_STAT_SPI_TXBUF_FG		BIT(3)
-+#define INTR_STAT_SPI_RXBUF_FG		BIT(2)
-+#define INTR_STAT_SPI_TXFF_FG		BIT(1)
-+#define INTR_STAT_SPI_RXFF_FG		BIT(0)
-+
-+#define INTR_STAT_CLEAR_MASK		(INTR_STAT_SPI_TXBF_UNRN_FG | \
-+					 INTR_STAT_SPI_RXBF_OVRN_FG | \
-+					 INTR_STAT_SPI_TXFF_UNRN_FG | \
-+					 INTR_STAT_SPI_RXFF_OVRN_FG)
-+
-+#define FIFO_TX_CFG_SPI_TXFF_THRED_M	0x3
-+#define FIFO_TX_CFG_SPI_TXFF_THRED_S	4
-+#define FIFO_TX_CFG_SPI_TXFF_THRED_2	0
-+#define FIFO_TX_CFG_SPI_TXFF_THRED_4	1
-+#define FIFO_TX_CFG_SPI_TXFF_THRED_6	0
-+#define FIFO_TX_CFG_SPI_TXFF_STATUS_M	0xf
-+
-+#define FIFO_RX_CFG_SPI_RXFF_THRED_M	0x3
-+#define FIFO_RX_CFG_SPI_RXFF_THRED_S	4
-+#define FIFO_RX_CFG_SPI_RXFF_THRED_2	0
-+#define FIFO_RX_CFG_SPI_RXFF_THRED_4	1
-+#define FIFO_RX_CFG_SPI_RXFF_THRED_6	0
-+#define FIFO_RX_CFG_SPI_RXFF_STATUS_M	0xf
-+
-+#define CNS21XX_SPI_NUM_BIT_RATES	8
-+
-+struct cns21xx_spi {
-+	struct spi_bitbang	bitbang;
-+
-+	struct spi_master	*master;
-+	struct device		*dev;
-+	void __iomem		*base;
-+	struct resource		*region;
-+
-+	unsigned		freq_max;
-+	unsigned		freq_min;
-+
-+};
-+
-+static inline struct cns21xx_spi *to_hw(struct spi_device *spi)
-+{
-+	return spi_master_get_devdata(spi->master);
-+}
-+
-+static inline u32 cns21xx_spi_rr(struct cns21xx_spi *hw, unsigned int reg)
-+{
-+	return __raw_readl(hw->base + reg);
-+}
-+
-+static inline void cns21xx_spi_wr(struct cns21xx_spi *hw, u32 val,
-+				  unsigned int reg)
-+{
-+	__raw_writel(val, hw->base + reg);
-+}
-+
-+#define CNS21XX_SPI_RETRY_COUNT		100
-+static inline int cns21xx_spi_wait(struct cns21xx_spi *hw, unsigned int reg,
-+				   u32 mask, u32 val)
-+{
-+	int retry_cnt = 0;
-+
-+	do {
-+		if ((cns21xx_spi_rr(hw, reg) & mask) == val)
-+			break;
-+
-+		if (++retry_cnt > CNS21XX_SPI_RETRY_COUNT) {
-+			dev_err(hw->dev, "timeout waiting on register %02x\n",
-+				reg);
-+			return -EIO;
-+		}
-+	} while (1);
-+
-+	return 0;
-+}
-+
-+static int cns21xx_spi_txrx_word(struct cns21xx_spi *hw, u8 tx_channel,
-+				 u8 tx_eof_flag, u32 tx_data, u32 *rx_data)
-+{
-+	unsigned int tx_ctrl;
-+	u8 rx_channel;
-+	u8 rx_eof_flag;
-+	int err = 0;
-+
-+	err = cns21xx_spi_wait(hw, SPI_REG_STAT, STAT_SPI_BUSY_STA, 0);
-+	if (err)
-+		return err;
-+
-+	err = cns21xx_spi_wait(hw, SPI_REG_INTR_STAT, INTR_STAT_SPI_TXBUF_FG,
-+			       INTR_STAT_SPI_TXBUF_FG);
-+	if (err)
-+		return err;
-+
-+	tx_ctrl = cns21xx_spi_rr(hw, SPI_REG_TX_CTRL);
-+	tx_ctrl &= ~(TX_CTRL_CLEAR_MASK);
-+	tx_ctrl |= (tx_channel & TX_CTRL_SPI_TXCH_NUM_M);
-+	tx_ctrl |= (tx_eof_flag) ? TX_CTRL_SPI_TXDAT_EOF : 0;
-+	cns21xx_spi_wr(hw, tx_ctrl, SPI_REG_TX_CTRL);
-+
-+	cns21xx_spi_wr(hw, tx_data, SPI_REG_TX_DATA);
-+
-+	err = cns21xx_spi_wait(hw, SPI_REG_INTR_STAT, INTR_STAT_SPI_RXBUF_FG,
-+			       INTR_STAT_SPI_RXBUF_FG);
-+	if (err)
-+		return err;
-+
-+	rx_channel = cns21xx_spi_rr(hw, SPI_REG_RX_CTRL) &
-+					RX_CTRL_SPI_RXCH_NUM_M;
-+
-+	rx_eof_flag = (cns21xx_spi_rr(hw, SPI_REG_RX_CTRL) &
-+					RX_CTRL_SPI_RXDAT_EOF) ? 1 : 0;
-+
-+	*rx_data = cns21xx_spi_rr(hw, SPI_REG_RX_DATA);
-+
-+	if ((tx_channel != rx_channel) || (tx_eof_flag != rx_eof_flag))
-+		return -EPROTO;
-+
-+	return 0;
-+}
-+
-+static void cns21xx_spi_chipselect(struct spi_device *spi, int value)
-+{
-+	struct cns21xx_spi *hw = to_hw(spi);
-+	unsigned int spi_config;
-+	unsigned int tx_ctrl;
-+
-+	switch (value) {
-+	case BITBANG_CS_INACTIVE:
-+		break;
-+
-+	case BITBANG_CS_ACTIVE:
-+		spi_config = cns21xx_spi_rr(hw, SPI_REG_CFG);
-+
-+		if (spi->mode & SPI_CPHA)
-+			spi_config |= CFG_SPI_CLKPHA;
-+		else
-+			spi_config &= ~CFG_SPI_CLKPHA;
-+
-+		if (spi->mode & SPI_CPOL)
-+			spi_config |= CFG_SPI_CLKPOL;
-+		else
-+			spi_config &= ~CFG_SPI_CLKPOL;
-+
-+		cns21xx_spi_wr(hw, spi_config, SPI_REG_CFG);
-+
-+		tx_ctrl = cns21xx_spi_rr(hw, SPI_REG_TX_CTRL);
-+		tx_ctrl &= ~(TX_CTRL_CLEAR_MASK);
-+		tx_ctrl |= (spi->chip_select & TX_CTRL_SPI_TXCH_NUM_M);
-+		cns21xx_spi_wr(hw, tx_ctrl, SPI_REG_TX_CTRL);
-+
-+		break;
-+	}
-+}
-+
-+static int cns21xx_spi_setup(struct spi_device *spi)
-+{
-+	struct cns21xx_spi *hw = to_hw(spi);
-+
-+	if (spi->bits_per_word != 8) {
-+		dev_err(&spi->dev, "%s: invalid bits_per_word=%u\n",
-+			__func__, spi->bits_per_word);
-+		return -EINVAL;
-+	}
-+
-+	if (spi->max_speed_hz == 0)
-+		spi->max_speed_hz = hw->freq_max;
-+
-+	if (spi->max_speed_hz > hw->freq_max ||
-+	    spi->max_speed_hz < hw->freq_min) {
-+		dev_err(&spi->dev, "%s: max_speed_hz=%u out of range\n",
-+			__func__, spi->max_speed_hz);
-+		return -EINVAL;
-+	}
-+
-+	return 0;
-+}
-+
-+static int cns21xx_spi_setup_transfer(struct spi_device *spi,
-+				      struct spi_transfer *t)
-+{
-+	struct cns21xx_spi *hw = to_hw(spi);
-+	u8	bits_per_word;
-+	u32	hz;
-+	int	i;
-+
-+	bits_per_word = (t) ? t->bits_per_word : spi->bits_per_word;
-+	hz = t ? t->speed_hz : spi->max_speed_hz;
-+
-+	if (!bits_per_word)
-+		bits_per_word = spi->bits_per_word;
-+
-+	if (!hz)
-+		hz = spi->max_speed_hz;
-+
-+	if (bits_per_word != 8) {
-+		dev_err(&spi->dev, "%s: invalid bits_per_word=%u\n",
-+			__func__, bits_per_word);
-+		return -EINVAL;
-+	}
-+
-+	if (hz > spi->max_speed_hz || hz > hw->freq_max || hz < hw->freq_min) {
-+		dev_err(&spi->dev, "%s: max_speed_hz=%u out of range\n",
-+			__func__, hz);
-+		return -EINVAL;
-+	}
-+
-+	for (i = 0; i < CNS21XX_SPI_NUM_BIT_RATES; i++)
-+		if (spi->max_speed_hz > (cns21xx_get_apb_freq() >> i))
-+			break;
-+
-+	DBG("max_speed:%uHz, curr_speed:%luHz, rate_index=%d\n",
-+	    spi->max_speed_hz, cns21xx_get_apb_freq() / (1 << i), i);
-+
-+	cns21xx_spi_wr(hw, i, SPI_REG_BIT_RATE);
-+
-+	return 0;
-+}
-+
-+static int cns21xx_spi_txrx(struct spi_device *spi, struct spi_transfer *t)
-+{
-+	struct cns21xx_spi *hw = to_hw(spi);
-+	const unsigned char *tx_buf;
-+	unsigned char *rx_buf;
-+	u32 rx_data;
-+	int tx_eof;
-+	int err = 0;
-+	int i;
-+
-+	tx_buf = t->tx_buf;
-+	rx_buf = t->rx_buf;
-+	tx_eof = t->last_in_message_list;
-+
-+	DBG("txrx: tx %p, rx %p, len %d\n", tx_buf, rx_buf, t->len);
-+
-+	if (tx_buf) {
-+		for (i = 0; i < t->len; i++)
-+			DBG("tx_buf[%02d]: 0x%02x\n", i, tx_buf[i]);
-+
-+		for (i = 0; i < (t->len - 1); i++) {
-+			err = cns21xx_spi_txrx_word(hw, spi->chip_select, 0,
-+						    tx_buf[i], &rx_data);
-+			if (err)
-+				goto done;
-+
-+			if (rx_buf) {
-+				rx_buf[i] = rx_data;
-+				DBG("rx_buf[%02d]:0x%02x\n", i, rx_buf[i]);
-+			}
-+		}
-+
-+		err = cns21xx_spi_txrx_word(hw, spi->chip_select, tx_eof,
-+					    tx_buf[i], &rx_data);
-+		if (err)
-+			goto done;
-+
-+		if ((tx_eof) && rx_buf) {
-+			rx_buf[i] = rx_data;
-+			DBG("rx_buf[%02d]:0x%02x\n", i, rx_buf[i]);
-+		}
-+	} else if (rx_buf) {
-+		for (i = 0; i < (t->len - 1); i++) {
-+			err = cns21xx_spi_txrx_word(hw, spi->chip_select, 0,
-+						    0xff, &rx_data);
-+			if (err)
-+				goto done;
-+
-+			rx_buf[i] = rx_data;
-+			DBG("rx_buf[%02d]:0x%02x\n", i, rx_buf[i]);
-+		}
-+
-+		err = cns21xx_spi_txrx_word(hw, spi->chip_select, tx_eof,
-+					    0xff, &rx_data);
-+		if (err)
-+			goto done;
-+
-+		rx_buf[i] = rx_data;
-+		DBG("rx_buf[%02d]:0x%02x\n", i, rx_buf[i]);
-+	}
-+
-+ done:
-+	return (err) ? err : t->len;
-+}
-+
-+static void __init cns21xx_spi_hw_init(struct cns21xx_spi *hw)
-+{
-+	u32 t;
-+	u32 pclk;
-+
-+	/* Setup configuration register */
-+	cns21xx_spi_wr(hw, CFG_SPI_MASTER_EN, SPI_REG_CFG);
-+
-+	/* Set default clock to PCLK/2 */
-+	cns21xx_spi_wr(hw, BIT_RATE_DIV_2, SPI_REG_BIT_RATE);
-+
-+	/* Configure SPI's Tx channel */
-+	cns21xx_spi_wr(hw, 0, SPI_REG_TX_CTRL);
-+
-+	/* Configure Tx FIFO Threshold */
-+	t = cns21xx_spi_rr(hw, SPI_REG_FIFO_TX_CFG);
-+	t &= ~(FIFO_TX_CFG_SPI_TXFF_THRED_M << FIFO_TX_CFG_SPI_TXFF_THRED_S);
-+	t |= (FIFO_TX_CFG_SPI_TXFF_THRED_2 << FIFO_TX_CFG_SPI_TXFF_THRED_S);
-+	cns21xx_spi_wr(hw, t, SPI_REG_FIFO_TX_CFG);
-+
-+	/* Configure Rx FIFO Threshold */
-+	t = cns21xx_spi_rr(hw, SPI_REG_FIFO_RX_CFG);
-+	t &= ~(FIFO_RX_CFG_SPI_RXFF_THRED_M << FIFO_RX_CFG_SPI_RXFF_THRED_S);
-+	t |= (FIFO_RX_CFG_SPI_RXFF_THRED_2 << FIFO_RX_CFG_SPI_RXFF_THRED_S);
-+	cns21xx_spi_wr(hw, t, SPI_REG_FIFO_RX_CFG);
-+
-+	/* Disable interrupts, and clear interrupt status */
-+	cns21xx_spi_wr(hw, 0, SPI_REG_INTR_ENA);
-+	cns21xx_spi_wr(hw, INTR_STAT_CLEAR_MASK, SPI_REG_INTR_STAT);
-+
-+	(void) cns21xx_spi_rr(hw, SPI_REG_RX_DATA);
-+
-+	/* Enable SPI */
-+	t = cns21xx_spi_rr(hw, SPI_REG_CFG);
-+	t |= CFG_SPI_EN;
-+	cns21xx_spi_wr(hw, t, SPI_REG_CFG);
-+
-+	pclk = cns21xx_get_apb_freq();
-+	hw->freq_max = pclk;
-+	hw->freq_min = pclk / (1 << BIT_RATE_DIV_128);
-+}
-+
-+static int __init cns21xx_spi_probe(struct platform_device *pdev)
-+{
-+	struct cns21xx_spi *hw;
-+	struct spi_master *master;
-+	struct resource *res;
-+	int err = 0;
-+
-+	master = spi_alloc_master(&pdev->dev, sizeof(struct cns21xx_spi));
-+	if (!master) {
-+		dev_err(&pdev->dev, "No memory for spi_master\n");
-+		return -ENOMEM;
-+	}
-+
-+	hw = spi_master_get_devdata(master);
-+
-+	platform_set_drvdata(pdev, hw);
-+	hw->master = spi_master_get(master);
-+	hw->dev = &pdev->dev;
-+
-+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-+	if (!res) {
-+		dev_dbg(&pdev->dev, "no MEM resource found\n");
-+		err = -ENOENT;
-+		goto err_put_master;
-+	}
-+
-+	hw->region = request_mem_region(res->start, resource_size(res),
-+					dev_name(&pdev->dev));
-+	if (!hw->region) {
-+		dev_err(&pdev->dev, "unable to reserve iomem region\n");
-+		err = -ENXIO;
-+		goto err_put_master;
-+	}
-+
-+	hw->base = ioremap(res->start, resource_size(res));
-+	if (!hw->base) {
-+		dev_err(&pdev->dev, "ioremap failed\n");
-+		err = -ENOENT;
-+		goto err_release_region;
-+	}
-+
-+	cns21xx_spi_hw_init(hw);
-+
-+	master->bus_num = pdev->id;
-+	if (master->bus_num == -1)
-+		master->bus_num = 0;
-+
-+	master->num_chipselect = 4;
-+	master->setup = cns21xx_spi_setup;
-+
-+	hw->bitbang.master = hw->master;
-+	hw->bitbang.chipselect = cns21xx_spi_chipselect;
-+	hw->bitbang.txrx_bufs = cns21xx_spi_txrx;
-+	hw->bitbang.setup_transfer = cns21xx_spi_setup_transfer;
-+
-+	err = spi_bitbang_start(&hw->bitbang);
-+	if (err) {
-+		dev_err(hw->dev, "unable to register SPI master\n");
-+		goto err_unmap;
-+	}
-+
-+	dev_info(hw->dev, "iomem at %08x\n", res->start);
-+
-+	return 0;
-+
-+ err_unmap:
-+	iounmap(hw->base);
-+
-+ err_release_region:
-+	release_resource(hw->region);
-+	kfree(hw->region);
-+
-+ err_put_master:
-+	spi_master_put(hw->bitbang.master);
-+	platform_set_drvdata(pdev, NULL);
-+
-+	return err;
-+}
-+
-+static int cns21xx_spi_remove(struct platform_device *pdev)
-+{
-+	struct cns21xx_spi *hw = platform_get_drvdata(pdev);
-+
-+	spi_bitbang_stop(&hw->bitbang);
-+	iounmap(hw->base);
-+	release_resource(hw->region);
-+	kfree(hw->region);
-+	spi_master_put(hw->bitbang.master);
-+	platform_set_drvdata(pdev, NULL);
-+
-+	return 0;
-+}
-+
-+static struct platform_driver cns21xx_spi_driver = {
-+	.remove		= cns21xx_spi_remove,
-+	.driver		= {
-+		.name	= DRIVER_NAME,
-+		.owner	= THIS_MODULE,
-+	},
-+};
-+
-+static int __init cns21xx_spi_init(void)
-+{
-+	return platform_driver_probe(&cns21xx_spi_driver, cns21xx_spi_probe);
-+}
-+
-+static void __exit cns21xx_spi_exit(void)
-+{
-+	platform_driver_unregister(&cns21xx_spi_driver);
-+}
-+
-+module_init(cns21xx_spi_init);
-+module_exit(cns21xx_spi_exit);
-+
-+MODULE_DESCRIPTION("Cavium Networks CNS21xx SPI Controller driver");
-+MODULE_AUTHOR("STAR Semi Corp.");
-+MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
-+MODULE_LICENSE("GPL v2");
-+MODULE_ALIAS("platform:" DRIVER_NAME);