+// SPDX-License-Identifier: GPL-2.0+
/*
* (C) Copyright 2011
* Holger Brunck, Keymile GmbH Hannover, holger.brunck@keymile.com
- *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that 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 <common.h>
#include <i2c.h>
#include <asm/io.h>
#include <linux/ctype.h>
+#include <linux/delay.h>
#include "../common/common.h"
static void i2c_write_start_seq(void)
{
- struct fsl_i2c *dev;
- dev = (struct fsl_i2c *) (CONFIG_SYS_IMMR + CONFIG_SYS_I2C_OFFSET);
+ struct fsl_i2c_base *base;
+ base = (struct fsl_i2c_base *)(CONFIG_SYS_IMMR +
+ CONFIG_SYS_I2C_OFFSET);
udelay(DELAY_ABORT_SEQ);
- out_8(&dev->cr, (I2C_CR_MEN | I2C_CR_MSTA));
+ out_8(&base->cr, (I2C_CR_MEN | I2C_CR_MSTA));
udelay(DELAY_ABORT_SEQ);
- out_8(&dev->cr, (I2C_CR_MEN));
+ out_8(&base->cr, (I2C_CR_MEN));
}
int i2c_make_abort(void)
{
- struct fsl_i2c *dev;
- dev = (struct fsl_i2c *) (CONFIG_SYS_IMMR + CONFIG_SYS_I2C_OFFSET);
+ struct fsl_i2c_base *base;
+ base = (struct fsl_i2c_base *)(CONFIG_SYS_IMMR +
+ CONFIG_SYS_I2C_OFFSET);
uchar last;
int nbr_read = 0;
int i = 0;
int ret = 0;
/* wait after each operation to finsh with a delay */
- out_8(&dev->cr, (I2C_CR_MSTA));
+ out_8(&base->cr, (I2C_CR_MSTA));
udelay(DELAY_ABORT_SEQ);
- out_8(&dev->cr, (I2C_CR_MEN | I2C_CR_MSTA));
+ out_8(&base->cr, (I2C_CR_MEN | I2C_CR_MSTA));
udelay(DELAY_ABORT_SEQ);
- in_8(&dev->dr);
+ in_8(&base->dr);
udelay(DELAY_ABORT_SEQ);
- last = in_8(&dev->dr);
+ last = in_8(&base->dr);
nbr_read++;
/*
while (((last & 0x01) != 0x01) &&
(nbr_read < CONFIG_SYS_IVM_EEPROM_MAX_LEN)) {
udelay(DELAY_ABORT_SEQ);
- last = in_8(&dev->dr);
+ last = in_8(&base->dr);
nbr_read++;
}
if ((last & 0x01) != 0x01)
printf("[INFO] i2c abort after %d bytes (0x%02x)\n",
nbr_read, last);
udelay(DELAY_ABORT_SEQ);
- out_8(&dev->cr, (I2C_CR_MEN));
+ out_8(&base->cr, (I2C_CR_MEN));
udelay(DELAY_ABORT_SEQ);
/* clear status reg */
- out_8(&dev->sr, 0);
+ out_8(&base->sr, 0);
for (i = 0; i < 5; i++)
i2c_write_start_seq();