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author | Troy Kisky <troy.kisky@boundarydevices.com> | 2012-07-19 08:18:25 (GMT) |
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committer | Heiko Schocher <hs@denx.de> | 2012-07-31 06:00:57 (GMT) |
commit | cc54a0f7cccf976d350801d39c406e75465ebdd1 (patch) | |
tree | c28139c6518e37fd16786cd011bbb5b5f0556a0b /arch/arm/include/asm/imx-common | |
parent | df369dcdb05729304761748856a2513d9ddac272 (diff) | |
download | u-boot-fsl-qoriq-cc54a0f7cccf976d350801d39c406e75465ebdd1.tar.xz |
imx-common: add i2c.c for bus recovery support
Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
Diffstat (limited to 'arch/arm/include/asm/imx-common')
-rw-r--r-- | arch/arm/include/asm/imx-common/mxc_i2c.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/arch/arm/include/asm/imx-common/mxc_i2c.h b/arch/arm/include/asm/imx-common/mxc_i2c.h new file mode 100644 index 0000000..9a5187d --- /dev/null +++ b/arch/arm/include/asm/imx-common/mxc_i2c.h @@ -0,0 +1,42 @@ +/* + * Copyright (C) 2011 Freescale Semiconductor, Inc. All Rights Reserved. + * + * 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., + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ +#ifndef __ASM_ARCH_MXC_MXC_I2C_H__ +#define __ASM_ARCH_MXC_MXC_I2C_H__ +#include <asm/imx-common/iomux-v3.h> + +struct i2c_pin_ctrl { + iomux_v3_cfg_t i2c_mode; + iomux_v3_cfg_t gpio_mode; + unsigned char gp; + unsigned char spare; +}; + +struct i2c_pads_info { + struct i2c_pin_ctrl scl; + struct i2c_pin_ctrl sda; +}; + +void setup_i2c(unsigned i2c_index, int speed, int slave_addr, + struct i2c_pads_info *p); +void bus_i2c_init(void *base, int speed, int slave_addr, + int (*idle_bus_fn)(void *p), void *p); +int bus_i2c_read(void *base, uchar chip, uint addr, int alen, uchar *buf, + int len); +int bus_i2c_write(void *base, uchar chip, uint addr, int alen, + const uchar *buf, int len); +#endif |