diff options
Diffstat (limited to 'arch/arm/include/asm/arch-mxs/regs-i2c.h')
| -rw-r--r-- | arch/arm/include/asm/arch-mxs/regs-i2c.h | 207 |
1 files changed, 207 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-mxs/regs-i2c.h b/arch/arm/include/asm/arch-mxs/regs-i2c.h new file mode 100644 index 0000000000..067cfd3947 --- /dev/null +++ b/arch/arm/include/asm/arch-mxs/regs-i2c.h @@ -0,0 +1,207 @@ +/* + * Freescale i.MX28 I2C Register Definitions + * + * Copyright (C) 2011 Marek Vasut <marek.vasut@gmail.com> + * on behalf of DENX Software Engineering GmbH + * + * 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 + * + */ + +#ifndef __MX28_REGS_I2C_H__ +#define __MX28_REGS_I2C_H__ + +#include <asm/arch/regs-common.h> + +#ifndef __ASSEMBLY__ +struct mxs_i2c_regs { + mxs_reg_32(hw_i2c_ctrl0) + mxs_reg_32(hw_i2c_timing0) + mxs_reg_32(hw_i2c_timing1) + mxs_reg_32(hw_i2c_timing2) + mxs_reg_32(hw_i2c_ctrl1) + mxs_reg_32(hw_i2c_stat) + mxs_reg_32(hw_i2c_queuectrl) + mxs_reg_32(hw_i2c_queuestat) + mxs_reg_32(hw_i2c_queuecmd) + mxs_reg_32(hw_i2c_queuedata) + mxs_reg_32(hw_i2c_data) + mxs_reg_32(hw_i2c_debug0) + mxs_reg_32(hw_i2c_debug1) + mxs_reg_32(hw_i2c_version) +}; +#endif + +#define I2C_CTRL_SFTRST (1 << 31) +#define I2C_CTRL_CLKGATE (1 << 30) +#define I2C_CTRL_RUN (1 << 29) +#define I2C_CTRL_PREACK (1 << 27) +#define I2C_CTRL_ACKNOWLEDGE (1 << 26) +#define I2C_CTRL_SEND_NAK_ON_LAST (1 << 25) +#define I2C_CTRL_MULTI_MASTER (1 << 23) +#define I2C_CTRL_CLOCK_HELD (1 << 22) +#define I2C_CTRL_RETAIN_CLOCK (1 << 21) +#define I2C_CTRL_POST_SEND_STOP (1 << 20) +#define I2C_CTRL_PRE_SEND_START (1 << 19) +#define I2C_CTRL_SLAVE_ADDRESS_ENABLE (1 << 18) +#define I2C_CTRL_MASTER_MODE (1 << 17) +#define I2C_CTRL_DIRECTION (1 << 16) +#define I2C_CTRL_XFER_COUNT_MASK 0xffff +#define I2C_CTRL_XFER_COUNT_OFFSET 0 + +#define I2C_TIMING0_HIGH_COUNT_MASK (0x3ff << 16) +#define I2C_TIMING0_HIGH_COUNT_OFFSET 16 +#define I2C_TIMING0_RCV_COUNT_MASK 0x3ff +#define I2C_TIMING0_RCV_COUNT_OFFSET 0 + +#define I2C_TIMING1_LOW_COUNT_MASK (0x3ff << 16) +#define I2C_TIMING1_LOW_COUNT_OFFSET 16 +#define I2C_TIMING1_XMIT_COUNT_MASK 0x3ff +#define I2C_TIMING1_XMIT_COUNT_OFFSET 0 + +#define I2C_TIMING2_BUS_FREE_MASK (0x3ff << 16) +#define I2C_TIMING2_BUS_FREE_OFFSET 16 +#define I2C_TIMING2_LEADIN_COUNT_MASK 0x3ff +#define I2C_TIMING2_LEADIN_COUNT_OFFSET 0 + +#define I2C_CTRL1_RD_QUEUE_IRQ (1 << 30) +#define I2C_CTRL1_WR_QUEUE_IRQ (1 << 29) +#define I2C_CTRL1_CLR_GOT_A_NAK (1 << 28) +#define I2C_CTRL1_ACK_MODE (1 << 27) +#define I2C_CTRL1_FORCE_DATA_IDLE (1 << 26) +#define I2C_CTRL1_FORCE_CLK_IDLE (1 << 25) +#define I2C_CTRL1_BCAST_SLAVE_EN (1 << 24) +#define I2C_CTRL1_SLAVE_ADDRESS_BYTE_MASK (0xff << 16) +#define I2C_CTRL1_SLAVE_ADDRESS_BYTE_OFFSET 16 +#define I2C_CTRL1_BUS_FREE_IRQ_EN (1 << 15) +#define I2C_CTRL1_DATA_ENGINE_CMPLT_IRQ_EN (1 << 14) +#define I2C_CTRL1_NO_SLAVE_ACK_IRQ_EN (1 << 13) +#define I2C_CTRL1_OVERSIZE_XFER_TERM_IRQ_EN (1 << 12) +#define I2C_CTRL1_EARLY_TERM_IRQ_EN (1 << 11) +#define I2C_CTRL1_MASTER_LOSS_IRQ_EN (1 << 10) +#define I2C_CTRL1_SLAVE_STOP_IRQ_EN (1 << 9) +#define I2C_CTRL1_SLAVE_IRQ_EN (1 << 8) +#define I2C_CTRL1_BUS_FREE_IRQ (1 << 7) +#define I2C_CTRL1_DATA_ENGINE_CMPLT_IRQ (1 << 6) +#define I2C_CTRL1_NO_SLAVE_ACK_IRQ (1 << 5) +#define I2C_CTRL1_OVERSIZE_XFER_TERM_IRQ (1 << 4) +#define I2C_CTRL1_EARLY_TERM_IRQ (1 << 3) +#define I2C_CTRL1_MASTER_LOSS_IRQ (1 << 2) +#define I2C_CTRL1_SLAVE_STOP_IRQ (1 << 1) +#define I2C_CTRL1_SLAVE_IRQ (1 << 0) + +#define I2C_STAT_MASTER_PRESENT (1 << 31) +#define I2C_STAT_SLAVE_PRESENT (1 << 30) +#define I2C_STAT_ANY_ENABLED_IRQ (1 << 29) +#define I2C_STAT_GOT_A_NAK (1 << 28) +#define I2C_STAT_RCVD_SLAVE_ADDR_MASK (0xff << 16) +#define I2C_STAT_RCVD_SLAVE_ADDR_OFFSET 16 +#define I2C_STAT_SLAVE_ADDR_EQ_ZERO (1 << 15) +#define I2C_STAT_SLAVE_FOUND (1 << 14) +#define I2C_STAT_SLAVE_SEARCHING (1 << 13) +#define I2C_STAT_DATA_ENGING_DMA_WAIT (1 << 12) +#define I2C_STAT_BUS_BUSY (1 << 11) +#define I2C_STAT_CLK_GEN_BUSY (1 << 10) +#define I2C_STAT_DATA_ENGINE_BUSY (1 << 9) +#define I2C_STAT_SLAVE_BUSY (1 << 8) +#define I2C_STAT_BUS_FREE_IRQ_SUMMARY (1 << 7) +#define I2C_STAT_DATA_ENGINE_CMPLT_IRQ_SUMMARY (1 << 6) +#define I2C_STAT_NO_SLAVE_ACK_IRQ_SUMMARY (1 << 5) +#define I2C_STAT_OVERSIZE_XFER_TERM_IRQ_SUMMARY (1 << 4) +#define I2C_STAT_EARLY_TERM_IRQ_SUMMARY (1 << 3) +#define I2C_STAT_MASTER_LOSS_IRQ_SUMMARY (1 << 2) +#define I2C_STAT_SLAVE_STOP_IRQ_SUMMARY (1 << 1) +#define I2C_STAT_SLAVE_IRQ_SUMMARY (1 << 0) + +#define I2C_QUEUECTRL_RD_THRESH_MASK (0x1f << 16) +#define I2C_QUEUECTRL_RD_THRESH_OFFSET 16 +#define I2C_QUEUECTRL_WR_THRESH_MASK (0x1f << 8) +#define I2C_QUEUECTRL_WR_THRESH_OFFSET 8 +#define I2C_QUEUECTRL_QUEUE_RUN (1 << 5) +#define I2C_QUEUECTRL_RD_CLEAR (1 << 4) +#define I2C_QUEUECTRL_WR_CLEAR (1 << 3) +#define I2C_QUEUECTRL_PIO_QUEUE_MODE (1 << 2) +#define I2C_QUEUECTRL_RD_QUEUE_IRQ_EN (1 << 1) +#define I2C_QUEUECTRL_WR_QUEUE_IRQ_EN (1 << 0) + +#define I2C_QUEUESTAT_RD_QUEUE_FULL (1 << 14) +#define I2C_QUEUESTAT_RD_QUEUE_EMPTY (1 << 13) +#define I2C_QUEUESTAT_RD_QUEUE_CNT_MASK (0x1f << 8) +#define I2C_QUEUESTAT_RD_QUEUE_CNT_OFFSET 8 +#define I2C_QUEUESTAT_WR_QUEUE_FULL (1 << 6) +#define I2C_QUEUESTAT_WR_QUEUE_EMPTY (1 << 5) +#define I2C_QUEUESTAT_WR_QUEUE_CNT_MASK 0x1f +#define I2C_QUEUESTAT_WR_QUEUE_CNT_OFFSET 0 + +#define I2C_QUEUECMD_PREACK (1 << 27) +#define I2C_QUEUECMD_ACKNOWLEDGE (1 << 26) +#define I2C_QUEUECMD_SEND_NAK_ON_LAST (1 << 25) +#define I2C_QUEUECMD_MULTI_MASTER (1 << 23) +#define I2C_QUEUECMD_CLOCK_HELD (1 << 22) +#define I2C_QUEUECMD_RETAIN_CLOCK (1 << 21) +#define I2C_QUEUECMD_POST_SEND_STOP (1 << 20) +#define I2C_QUEUECMD_PRE_SEND_START (1 << 19) +#define I2C_QUEUECMD_SLAVE_ADDRESS_ENABLE (1 << 18) +#define I2C_QUEUECMD_MASTER_MODE (1 << 17) +#define I2C_QUEUECMD_DIRECTION (1 << 16) +#define I2C_QUEUECMD_XFER_COUNT_MASK 0xffff +#define I2C_QUEUECMD_XFER_COUNT_OFFSET 0 + +#define I2C_QUEUEDATA_DATA_MASK 0xffffffff +#define I2C_QUEUEDATA_DATA_OFFSET 0 + +#define I2C_DATA_DATA_MASK 0xffffffff +#define I2C_DATA_DATA_OFFSET 0 + +#define I2C_DEBUG0_DMAREQ (1 << 31) +#define I2C_DEBUG0_DMAENDCMD (1 << 30) +#define I2C_DEBUG0_DMAKICK (1 << 29) +#define I2C_DEBUG0_DMATERMINATE (1 << 28) +#define I2C_DEBUG0_STATE_VALUE_MASK (0x3 << 26) +#define I2C_DEBUG0_STATE_VALUE_OFFSET 26 +#define I2C_DEBUG0_DMA_STATE_MASK (0x3ff << 16) +#define I2C_DEBUG0_DMA_STATE_OFFSET 16 +#define I2C_DEBUG0_START_TOGGLE (1 << 15) +#define I2C_DEBUG0_STOP_TOGGLE (1 << 14) +#define I2C_DEBUG0_GRAB_TOGGLE (1 << 13) +#define I2C_DEBUG0_CHANGE_TOGGLE (1 << 12) +#define I2C_DEBUG0_STATE_LATCH (1 << 11) +#define I2C_DEBUG0_SLAVE_HOLD_CLK (1 << 10) +#define I2C_DEBUG0_STATE_STATE_MASK 0x3ff +#define I2C_DEBUG0_STATE_STATE_OFFSET 0 + +#define I2C_DEBUG1_I2C_CLK_IN (1 << 31) +#define I2C_DEBUG1_I2C_DATA_IN (1 << 30) +#define I2C_DEBUG1_DMA_BYTE_ENABLES_MASK (0xf << 24) +#define I2C_DEBUG1_DMA_BYTE_ENABLES_OFFSET 24 +#define I2C_DEBUG1_CLK_GEN_STATE_MASK (0xff << 16) +#define I2C_DEBUG1_CLK_GEN_STATE_OFFSET 16 +#define I2C_DEBUG1_LST_MODE_MASK (0x3 << 9) +#define I2C_DEBUG1_LST_MODE_OFFSET 9 +#define I2C_DEBUG1_LOCAL_SLAVE_TEST (1 << 8) +#define I2C_DEBUG1_FORCE_CLK_ON (1 << 4) +#define I2C_DEBUG1_FORCE_ABR_LOSS (1 << 3) +#define I2C_DEBUG1_FORCE_RCV_ACK (1 << 2) +#define I2C_DEBUG1_FORCE_I2C_DATA_OE (1 << 1) +#define I2C_DEBUG1_FORCE_I2C_CLK_OE (1 << 0) + +#define I2C_VERSION_MAJOR_MASK (0xff << 24) +#define I2C_VERSION_MAJOR_OFFSET 24 +#define I2C_VERSION_MINOR_MASK (0xff << 16) +#define I2C_VERSION_MINOR_OFFSET 16 +#define I2C_VERSION_STEP_MASK 0xffff +#define I2C_VERSION_STEP_OFFSET 0 + +#endif /* __MX28_REGS_I2C_H__ */ |