[U-Boot] [PATCH 11/31] iMX28: Add I2C register definitions
Marek Vasut
marek.vasut at gmail.com
Thu Sep 8 22:42:39 CEST 2011
Signed-off-by: Marek Vasut <marek.vasut at gmail.com>
Cc: Stefano Babic <sbabic at denx.de>
Cc: Wolfgang Denk <wd at denx.de>
Cc: Detlev Zundel <dzu at denx.de>
---
arch/arm/include/asm/arch-mx28/regs-i2c.h | 203 +++++++++++++++++++++++++++++
1 files changed, 203 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/include/asm/arch-mx28/regs-i2c.h
diff --git a/arch/arm/include/asm/arch-mx28/regs-i2c.h b/arch/arm/include/asm/arch-mx28/regs-i2c.h
new file mode 100644
index 0000000..1bb20c3
--- /dev/null
+++ b/arch/arm/include/asm/arch-mx28/regs-i2c.h
@@ -0,0 +1,203 @@
+/*
+ * Freescale i.MX28 I2C Register Definitions
+ *
+ * Copyright (C) 2011 Marek Vasut <marek.vasut at 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 __REGS_I2C_H__
+#define __REGS_I2C_H__
+
+struct mx28_i2c_regs {
+ mx28_reg(hw_i2c_ctrl0)
+ mx28_reg(hw_i2c_timing0)
+ mx28_reg(hw_i2c_timing1)
+ mx28_reg(hw_i2c_timing2)
+ mx28_reg(hw_i2c_ctrl1)
+ mx28_reg(hw_i2c_stat)
+ mx28_reg(hw_i2c_queuectrl)
+ mx28_reg(hw_i2c_queuestat)
+ mx28_reg(hw_i2c_queuecmd)
+ mx28_reg(hw_i2c_queuedata)
+ mx28_reg(hw_i2c_data)
+ mx28_reg(hw_i2c_debug0)
+ mx28_reg(hw_i2c_debug1)
+ mx28_reg(hw_i2c_version)
+};
+
+#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 /* __REGS_I2C_H__ */
--
1.7.5.4
More information about the U-Boot
mailing list