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Diffstat (limited to 'qemu/roms/u-boot/drivers/i2c/mv_i2c.h')
-rw-r--r--qemu/roms/u-boot/drivers/i2c/mv_i2c.h67
1 files changed, 67 insertions, 0 deletions
diff --git a/qemu/roms/u-boot/drivers/i2c/mv_i2c.h b/qemu/roms/u-boot/drivers/i2c/mv_i2c.h
new file mode 100644
index 000000000..ae27c447b
--- /dev/null
+++ b/qemu/roms/u-boot/drivers/i2c/mv_i2c.h
@@ -0,0 +1,67 @@
+/*
+ * (C) Copyright 2011
+ * Marvell Inc, <www.marvell.com>
+ *
+ * SPDX-License-Identifier: GPL-2.0+
+ */
+
+#ifndef _MV_I2C_H_
+#define _MV_I2C_H_
+extern void i2c_clk_enable(void);
+
+/* Shall the current transfer have a start/stop condition? */
+#define I2C_COND_NORMAL 0
+#define I2C_COND_START 1
+#define I2C_COND_STOP 2
+
+/* Shall the current transfer be ack/nacked or being waited for it? */
+#define I2C_ACKNAK_WAITACK 1
+#define I2C_ACKNAK_SENDACK 2
+#define I2C_ACKNAK_SENDNAK 4
+
+/* Specify who shall transfer the data (master or slave) */
+#define I2C_READ 0
+#define I2C_WRITE 1
+
+#if (CONFIG_SYS_I2C_SPEED == 400000)
+#define I2C_ICR_INIT (ICR_FM | ICR_BEIE | ICR_IRFIE | ICR_ITEIE | ICR_GCD \
+ | ICR_SCLE)
+#else
+#define I2C_ICR_INIT (ICR_BEIE | ICR_IRFIE | ICR_ITEIE | ICR_GCD | ICR_SCLE)
+#endif
+
+#define I2C_ISR_INIT 0x7FF
+/* ----- Control register bits ---------------------------------------- */
+
+#define ICR_START 0x1 /* start bit */
+#define ICR_STOP 0x2 /* stop bit */
+#define ICR_ACKNAK 0x4 /* send ACK(0) or NAK(1) */
+#define ICR_TB 0x8 /* transfer byte bit */
+#define ICR_MA 0x10 /* master abort */
+#define ICR_SCLE 0x20 /* master clock enable, mona SCLEA */
+#define ICR_IUE 0x40 /* unit enable */
+#define ICR_GCD 0x80 /* general call disable */
+#define ICR_ITEIE 0x100 /* enable tx interrupts */
+#define ICR_IRFIE 0x200 /* enable rx interrupts, mona: DRFIE */
+#define ICR_BEIE 0x400 /* enable bus error ints */
+#define ICR_SSDIE 0x800 /* slave STOP detected int enable */
+#define ICR_ALDIE 0x1000 /* enable arbitration interrupt */
+#define ICR_SADIE 0x2000 /* slave address detected int enable */
+#define ICR_UR 0x4000 /* unit reset */
+#define ICR_FM 0x8000 /* Fast Mode */
+
+/* ----- Status register bits ----------------------------------------- */
+
+#define ISR_RWM 0x1 /* read/write mode */
+#define ISR_ACKNAK 0x2 /* ack/nak status */
+#define ISR_UB 0x4 /* unit busy */
+#define ISR_IBB 0x8 /* bus busy */
+#define ISR_SSD 0x10 /* slave stop detected */
+#define ISR_ALD 0x20 /* arbitration loss detected */
+#define ISR_ITE 0x40 /* tx buffer empty */
+#define ISR_IRF 0x80 /* rx buffer full */
+#define ISR_GCAD 0x100 /* general call address detected */
+#define ISR_SAD 0x200 /* slave address detected */
+#define ISR_BED 0x400 /* bus error no ACK/NAK */
+
+#endif