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authorPeter Tyser <ptyser@xes-inc.com>2010-04-12 22:28:08 -0500
committerWolfgang Denk <wd@denx.de>2010-04-13 09:13:12 +0200
commit819833af39a91fa1c1e8252862bbda6f5a602f7b (patch)
treed5c9d1628643347ab2b5a8085acfa6f96709fda3 /arch/arm/include/asm/arch-davinci/i2c_defs.h
parent61f2b38a17f5b21c59f2afe6cf1cbb5f28638cf9 (diff)
Move architecture-specific includes to arch/$ARCH/include/asm
This helps to clean up the include/ directory so that it only contains non-architecture-specific headers and also matches Linux's directory layout which many U-Boot developers are already familiar with. Signed-off-by: Peter Tyser <ptyser@xes-inc.com>
Diffstat (limited to 'arch/arm/include/asm/arch-davinci/i2c_defs.h')
-rw-r--r--arch/arm/include/asm/arch-davinci/i2c_defs.h99
1 files changed, 99 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-davinci/i2c_defs.h b/arch/arm/include/asm/arch-davinci/i2c_defs.h
new file mode 100644
index 0000000000..24cd268b95
--- /dev/null
+++ b/arch/arm/include/asm/arch-davinci/i2c_defs.h
@@ -0,0 +1,99 @@
+/*
+ * (C) Copyright 2004
+ * Texas Instruments, <www.ti.com>
+ *
+ * Some changes copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * 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 _DAVINCI_I2C_H_
+#define _DAVINCI_I2C_H_
+
+#define I2C_WRITE 0
+#define I2C_READ 1
+
+#ifndef CONFIG_SOC_DA8XX
+#define I2C_BASE 0x01c21000
+#else
+#define I2C_BASE 0x01c22000
+#endif
+
+#define I2C_OA (I2C_BASE + 0x00)
+#define I2C_IE (I2C_BASE + 0x04)
+#define I2C_STAT (I2C_BASE + 0x08)
+#define I2C_SCLL (I2C_BASE + 0x0c)
+#define I2C_SCLH (I2C_BASE + 0x10)
+#define I2C_CNT (I2C_BASE + 0x14)
+#define I2C_DRR (I2C_BASE + 0x18)
+#define I2C_SA (I2C_BASE + 0x1c)
+#define I2C_DXR (I2C_BASE + 0x20)
+#define I2C_CON (I2C_BASE + 0x24)
+#define I2C_IV (I2C_BASE + 0x28)
+#define I2C_PSC (I2C_BASE + 0x30)
+
+/* I2C masks */
+
+/* I2C Interrupt Enable Register (I2C_IE): */
+#define I2C_IE_SCD_IE (1 << 5) /* Stop condition detect interrupt enable */
+#define I2C_IE_XRDY_IE (1 << 4) /* Transmit data ready interrupt enable */
+#define I2C_IE_RRDY_IE (1 << 3) /* Receive data ready interrupt enable */
+#define I2C_IE_ARDY_IE (1 << 2) /* Register access ready interrupt enable */
+#define I2C_IE_NACK_IE (1 << 1) /* No acknowledgment interrupt enable */
+#define I2C_IE_AL_IE (1 << 0) /* Arbitration lost interrupt enable */
+
+/* I2C Status Register (I2C_STAT): */
+
+#define I2C_STAT_BB (1 << 12) /* Bus busy */
+#define I2C_STAT_ROVR (1 << 11) /* Receive overrun */
+#define I2C_STAT_XUDF (1 << 10) /* Transmit underflow */
+#define I2C_STAT_AAS (1 << 9) /* Address as slave */
+#define I2C_STAT_SCD (1 << 5) /* Stop condition detect */
+#define I2C_STAT_XRDY (1 << 4) /* Transmit data ready */
+#define I2C_STAT_RRDY (1 << 3) /* Receive data ready */
+#define I2C_STAT_ARDY (1 << 2) /* Register access ready */
+#define I2C_STAT_NACK (1 << 1) /* No acknowledgment interrupt enable */
+#define I2C_STAT_AL (1 << 0) /* Arbitration lost interrupt enable */
+
+
+/* I2C Interrupt Code Register (I2C_INTCODE): */
+
+#define I2C_INTCODE_MASK 7
+#define I2C_INTCODE_NONE 0
+#define I2C_INTCODE_AL 1 /* Arbitration lost */
+#define I2C_INTCODE_NAK 2 /* No acknowledgement/general call */
+#define I2C_INTCODE_ARDY 3 /* Register access ready */
+#define I2C_INTCODE_RRDY 4 /* Rcv data ready */
+#define I2C_INTCODE_XRDY 5 /* Xmit data ready */
+#define I2C_INTCODE_SCD 6 /* Stop condition detect */
+
+
+/* I2C Configuration Register (I2C_CON): */
+
+#define I2C_CON_EN (1 << 5) /* I2C module enable */
+#define I2C_CON_STB (1 << 4) /* Start byte mode (master mode only) */
+#define I2C_CON_MST (1 << 10) /* Master/slave mode */
+#define I2C_CON_TRX (1 << 9) /* Transmitter/receiver mode (master mode only) */
+#define I2C_CON_XA (1 << 8) /* Expand address */
+#define I2C_CON_STP (1 << 11) /* Stop condition (master mode only) */
+#define I2C_CON_STT (1 << 13) /* Start condition (master mode only) */
+#define I2C_CON_FREE (1 << 14) /* Free run on emulation */
+
+#define I2C_TIMEOUT 0xffff0000 /* Timeout mask for poll_i2c_irq() */
+
+#endif