mxs: reorganize source directory for easy sharing of code in i.MXS SoCs

Most code can be shared between i.MX23 and i.MX28 as both are from
i.MXS family; this source directory structure makes easy to share code
among them.

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
Acked-by: Stefano Babic <sbabic@denx.de>

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..2e2e81453d
--- /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 mx28_i2c_regs {
+	mx28_reg_32(hw_i2c_ctrl0)
+	mx28_reg_32(hw_i2c_timing0)
+	mx28_reg_32(hw_i2c_timing1)
+	mx28_reg_32(hw_i2c_timing2)
+	mx28_reg_32(hw_i2c_ctrl1)
+	mx28_reg_32(hw_i2c_stat)
+	mx28_reg_32(hw_i2c_queuectrl)
+	mx28_reg_32(hw_i2c_queuestat)
+	mx28_reg_32(hw_i2c_queuecmd)
+	mx28_reg_32(hw_i2c_queuedata)
+	mx28_reg_32(hw_i2c_data)
+	mx28_reg_32(hw_i2c_debug0)
+	mx28_reg_32(hw_i2c_debug1)
+	mx28_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__ */