Remove i2c.

target/linux/xburst/files-2.6.31/arch/mips/jz4740/Makefile

@@ -5,7 +5,7 @@
 # Object file lists.
 
 obj-y += prom.o irq.o time.o reset.o setup.o dma.o \
-	gpio.o clock.o platform.o i2c.o
+	gpio.o clock.o platform.o
 
 obj-$(CONFIG_PROC_FS)		+= proc.o
 

target/linux/xburst/files-2.6.31/arch/mips/jz4740/i2c.c

@@ -1,273 +0,0 @@
-/*
- * linux/arch/mips/jz4740/i2c.c
- * 
- * Jz4740 I2C routines.
- * 
- * Copyright (C) 2005,2006 Ingenic Semiconductor Inc.
- * Author: <lhhuang@ingenic.cn>
- *
- *  This program is free software; you can distribute it and/or modify it
- *  under the terms of the GNU General Public License (Version 2) as
- *  published by the Free Software Foundation.
- *
- *  This program is distributed in the hope it will be useful, but WITHOUT
- *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
- *  for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
- *
- */
-#include <linux/module.h>
-#include <linux/types.h>
-#include <linux/delay.h>
-#include <asm/uaccess.h>
-#include <asm/addrspace.h>
-
-#include <asm/jzsoc.h>
-
-/* I2C protocol */
-#define I2C_READ	1
-#define I2C_WRITE	0
-
-#define TIMEOUT         1000
-
-/*
- * I2C bus protocol basic routines
- */
-static int i2c_put_data(unsigned char data)
-{
-	unsigned int timeout = TIMEOUT*10;
-
-	__i2c_write(data);
-	__i2c_set_drf();
-	while (__i2c_check_drf() != 0);
-	while (!__i2c_transmit_ended());
-	while (!__i2c_received_ack() && timeout)
-		timeout--;
-
-	if (timeout)
-		return 0;
-	else
-		return -ETIMEDOUT;
-}
-
-#ifdef CONFIG_JZ_TPANEL_ATA2508
-static int i2c_put_data_nack(unsigned char data)
-{
-	unsigned int timeout = TIMEOUT*10;
-
-	__i2c_write(data);
-	__i2c_set_drf();
-	while (__i2c_check_drf() != 0);
-	while (!__i2c_transmit_ended());
-	while (timeout--);
-		return 0;
-}
-#endif
-
-static int i2c_get_data(unsigned char *data, int ack)
-{
-	int timeout = TIMEOUT*10;
-
-	if (!ack)
-		__i2c_send_nack();
-	else
-		__i2c_send_ack();
-
-	while (__i2c_check_drf() == 0 && timeout)
-		timeout--;
-
-	if (timeout) {
-		if (!ack)
-			__i2c_send_stop();
-		*data = __i2c_read();
-		__i2c_clear_drf();
-		return 0;
-	} else
-		return -ETIMEDOUT;
-}
-
-/*
- * I2C interface
- */
-void i2c_open(void)
-{
-	__i2c_set_clk(jz_clocks.extalclk, 10000); /* default 10 KHz */
-	__i2c_enable();
-}
-
-void i2c_close(void)
-{
-	udelay(300); /* wait for STOP goes over. */
-	__i2c_disable();
-}
-
-void i2c_setclk(unsigned int i2cclk)
-{
-	__i2c_set_clk(jz_clocks.extalclk, i2cclk);
-}
-
-int i2c_lseek(unsigned char device, unsigned char offset)
-{
-	__i2c_send_nack();	/* Master does not send ACK, slave sends it */
-	__i2c_send_start();
-	if (i2c_put_data( (device << 1) | I2C_WRITE ) < 0)
-		goto device_err;
-	if (i2c_put_data(offset) < 0)
-		goto address_err;
-	return 0;
- device_err:
-	printk(KERN_DEBUG "No I2C device (0x%02x) installed.\n", device);
-	__i2c_send_stop();
-	return -ENODEV;
- address_err:
-	printk(KERN_DEBUG "No I2C device (0x%02x) response.\n", device);
-	__i2c_send_stop();
-	return -EREMOTEIO;
-}
-
-int i2c_read(unsigned char device, unsigned char *buf,
-	       unsigned char address, int count)
-{
-	int cnt = count;
-	int timeout = 5;
-
-L_try_again:
-
-	if (timeout < 0)
-		goto L_timeout;
-
-	__i2c_send_nack();	/* Master does not send ACK, slave sends it */
-	__i2c_send_start();
-	if (i2c_put_data( (device << 1) | I2C_WRITE ) < 0)
-		goto device_werr;
-	if (i2c_put_data(address) < 0)
-		goto address_err;
-
-	__i2c_send_start();
-	if (i2c_put_data( (device << 1) | I2C_READ ) < 0)
-		goto device_rerr;
-	__i2c_send_ack();	/* Master sends ACK for continue reading */
-	while (cnt) {
-		if (cnt == 1) {
-			if (i2c_get_data(buf, 0) < 0)
-				break;
-		} else {
-			if (i2c_get_data(buf, 1) < 0)
-				break;
-		}
-		cnt--;
-		buf++;
-	}
-
-	__i2c_send_stop();
-	return count - cnt;
- device_rerr:
- device_werr:
- address_err:
-	timeout --;
-	__i2c_send_stop();
-	goto L_try_again;
-
-L_timeout:
-	__i2c_send_stop();
-	printk("Read I2C device 0x%2x failed.\n", device);
-	return -ENODEV;
-}
-
-int i2c_write(unsigned char device, unsigned char *buf,
-		unsigned char address, int count)
-{
-	int cnt = count;
-	int cnt_in_pg;
-	int timeout = 5;
-	unsigned char *tmpbuf;
-	unsigned char tmpaddr;
-
-	__i2c_send_nack();	/* Master does not send ACK, slave sends it */
-
- W_try_again:
-	if (timeout < 0)
-		goto W_timeout;
-
-	cnt = count;
-	tmpbuf = (unsigned char *)buf;
-	tmpaddr = address;
-
- start_write_page:
-	cnt_in_pg = 0;
-	__i2c_send_start();
-	if (i2c_put_data( (device << 1) | I2C_WRITE ) < 0)
-		goto device_err;
-#ifdef CONFIG_JZ_TPANEL_ATA2508
-	if (address == 0xff) {
-		if (i2c_put_data_nack(tmpaddr) < 0)
-			goto address_err;
-		while (cnt) {
-			if (++cnt_in_pg > 8) {
-				__i2c_send_stop();
-				mdelay(1);
-				tmpaddr += 8;
-				goto start_write_page;
-			}
-			if (i2c_put_data_nack(*tmpbuf) < 0)
-				break;
-			cnt--;
-			tmpbuf++;
-		}
-	}
-	else {
-
-		if (i2c_put_data(tmpaddr) < 0)
-			goto address_err;
-		while (cnt) {
-			if (++cnt_in_pg > 8) {
-				__i2c_send_stop();
-				mdelay(1);
-				tmpaddr += 8;
-				goto start_write_page;
-			}
-			if (i2c_put_data(*tmpbuf) < 0)
-				break;
-			cnt--;
-			tmpbuf++;
-		}
-	}
-#else
-	if (i2c_put_data(tmpaddr) < 0)
-		goto address_err;
-	while (cnt) {
-		if (++cnt_in_pg > 8) {
-			__i2c_send_stop();
-			mdelay(1);
-			tmpaddr += 8;
-			goto start_write_page;
-		}
-		if (i2c_put_data(*tmpbuf) < 0)
-			break;
-		cnt--;
-		tmpbuf++;
-	}
-#endif
-	__i2c_send_stop();
-	return count - cnt;
- device_err:
- address_err:
-	timeout--;
-	__i2c_send_stop();
-	goto W_try_again;
-
- W_timeout:
-	printk(KERN_DEBUG "Write I2C device 0x%2x failed.\n", device);
-	__i2c_send_stop();
-	return -ENODEV;
-}
-
-EXPORT_SYMBOL(i2c_open);
-EXPORT_SYMBOL(i2c_close);
-EXPORT_SYMBOL(i2c_setclk);
-EXPORT_SYMBOL(i2c_read);
-EXPORT_SYMBOL(i2c_write);