X-Git-Url: https://gerrit.opnfv.org/gerrit/gitweb?a=blobdiff_plain;f=qemu%2Froms%2Fu-boot%2Fdrivers%2Fi2c%2Fdavinci_i2c.h;fp=qemu%2Froms%2Fu-boot%2Fdrivers%2Fi2c%2Fdavinci_i2c.h;h=20d43424b9f99fa9e54ae54acf4e3fd3813db95e;hb=e44e3482bdb4d0ebde2d8b41830ac2cdb07948fb;hp=0000000000000000000000000000000000000000;hpb=9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00;p=kvmfornfv.git

diff --git a/qemu/roms/u-boot/drivers/i2c/davinci_i2c.h b/qemu/roms/u-boot/drivers/i2c/davinci_i2c.h
new file mode 100644
index 000000000..20d43424b
--- /dev/null
+++ b/qemu/roms/u-boot/drivers/i2c/davinci_i2c.h
@@ -0,0 +1,78 @@
+/*
+ * (C) Copyright 2004-2014
+ * Texas Instruments, <www.ti.com>
+ *
+ * Some changes copyright (C) 2007 Sergey Kubushyn <ksi@koi8.net>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+#ifndef _DAVINCI_I2C_H_
+#define _DAVINCI_I2C_H_
+
+#define I2C_WRITE		0
+#define I2C_READ		1
+
+struct i2c_regs {
+	u32	i2c_oa;
+	u32	i2c_ie;
+	u32	i2c_stat;
+	u32	i2c_scll;
+	u32	i2c_sclh;
+	u32	i2c_cnt;
+	u32	i2c_drr;
+	u32	i2c_sa;
+	u32	i2c_dxr;
+	u32	i2c_con;
+	u32	i2c_iv;
+	u32	res_2c;
+	u32	i2c_psc;
+};
+
+/* 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)   /* Tx/Rx 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