diff options
Diffstat (limited to 'board/keymile/km83xx')
-rw-r--r-- | board/keymile/km83xx/Makefile | 2 | ||||
-rw-r--r-- | board/keymile/km83xx/km83xx_i2c.c | 73 |
2 files changed, 1 insertions, 74 deletions
diff --git a/board/keymile/km83xx/Makefile b/board/keymile/km83xx/Makefile index 0aef654987..bdb358e2d2 100644 --- a/board/keymile/km83xx/Makefile +++ b/board/keymile/km83xx/Makefile @@ -3,4 +3,4 @@ # (C) Copyright 2006 # Wolfgang Denk, DENX Software Engineering, wd@denx.de. -obj-y += km83xx.o ../common/common.o ../common/ivm.o km83xx_i2c.o +obj-y += km83xx.o ../common/common.o ../common/ivm.o diff --git a/board/keymile/km83xx/km83xx_i2c.c b/board/keymile/km83xx/km83xx_i2c.c deleted file mode 100644 index b80672d1b4..0000000000 --- a/board/keymile/km83xx/km83xx_i2c.c +++ /dev/null @@ -1,73 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0+ -/* - * (C) Copyright 2011 - * Holger Brunck, Keymile GmbH Hannover, holger.brunck@keymile.com - */ - -#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_base *base; - base = (struct fsl_i2c_base *)(CONFIG_SYS_IMMR + - CONFIG_SYS_FSL_I2C_OFFSET); - udelay(DELAY_ABORT_SEQ); - out_8(&base->cr, (I2C_CR_MEN | I2C_CR_MSTA)); - udelay(DELAY_ABORT_SEQ); - out_8(&base->cr, (I2C_CR_MEN)); -} - -int i2c_make_abort(void) -{ - struct fsl_i2c_base *base; - base = (struct fsl_i2c_base *)(CONFIG_SYS_IMMR + - CONFIG_SYS_FSL_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(&base->cr, (I2C_CR_MSTA)); - udelay(DELAY_ABORT_SEQ); - out_8(&base->cr, (I2C_CR_MEN | I2C_CR_MSTA)); - udelay(DELAY_ABORT_SEQ); - in_8(&base->dr); - udelay(DELAY_ABORT_SEQ); - last = in_8(&base->dr); - nbr_read++; - - /* - * do read until the last bit is 1, but stop if the full eeprom is - * read. - */ - while (((last & 0x01) != 0x01) && - (nbr_read < CONFIG_SYS_IVM_EEPROM_MAX_LEN)) { - udelay(DELAY_ABORT_SEQ); - last = in_8(&base->dr); - nbr_read++; - } - if ((last & 0x01) != 0x01) - ret = -2; - if ((last != 0xff) || (nbr_read > 1)) - printf("[INFO] i2c abort after %d bytes (0x%02x)\n", - nbr_read, last); - udelay(DELAY_ABORT_SEQ); - out_8(&base->cr, (I2C_CR_MEN)); - udelay(DELAY_ABORT_SEQ); - /* clear status reg */ - out_8(&base->sr, 0); - - for (i = 0; i < 5; i++) - i2c_write_start_seq(); - if (ret != 0) - printf("[ERROR] i2c abort failed after %d bytes (0x%02x)\n", - nbr_read, last); - - return ret; -} |