X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=include%2Fi2c.h;h=a5c760c711edcca9e278e478cd0c4babbef80b80;hb=cc1e98b559e46630c3421a7762d02a58e5480926;hp=2c1643d65067d3400bbf81a0a0b24ae63fc7b32a;hpb=be62fbf376261ab3a4ed5db3bf54d5df9e216d9f;p=platform%2Fkernel%2Fu-boot.git

diff --git a/include/i2c.h b/include/i2c.h
index 2c1643d..a5c760c 100644
--- a/include/i2c.h
+++ b/include/i2c.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (C) 2009 Sergey Kubushyn <ksi@koi8.net>
  * Copyright (C) 2009 - 2013 Heiko Schocher <hs@denx.de>
@@ -6,8 +7,6 @@
  * (C) Copyright 2001
  * Gerald Van Baren, Custom IDEAS, vanbaren@cideas.com.
  *
- * SPDX-License-Identifier:	GPL-2.0+
- *
  * The original I2C interface was
  *   (C) 2000 by Paolo Scaffardi (arsenio@tin.it)
  *   AIRVENT SAM s.p.a - RIMINI(ITALY)
@@ -69,9 +68,11 @@ struct dm_i2c_chip {
  * I2C bus udevice.
  *
  * @speed_hz: Bus speed in hertz (typically 100000)
+ * @max_transaction_bytes: Maximal size of single I2C transfer
  */
 struct dm_i2c_bus {
 	int speed_hz;
+	int max_transaction_bytes;
 };
 
 /*
@@ -525,8 +526,7 @@ int i2c_get_chip_for_busnum(int busnum, int chip_addr, uint offset_len,
  * @node:	Node offset to read from
  * @spi:	Place to put the decoded information
  */
-int i2c_chip_ofdata_to_platdata(const void *blob, int node,
-				struct dm_i2c_chip *chip);
+int i2c_chip_ofdata_to_platdata(struct udevice *dev, struct dm_i2c_chip *chip);
 
 /**
  * i2c_dump_msgs() - Dump a list of I2C messages
@@ -538,6 +538,27 @@ int i2c_chip_ofdata_to_platdata(const void *blob, int node,
  */
 void i2c_dump_msgs(struct i2c_msg *msg, int nmsgs);
 
+/**
+ * i2c_emul_find() - Find an emulator for an i2c sandbox device
+ *
+ * This looks at the device's 'emul' phandle
+ *
+ * @dev: Device to find an emulator for
+ * @emulp: Returns the associated emulator, if found *
+ * @return 0 if OK, -ENOENT or -ENODEV if not found
+ */
+int i2c_emul_find(struct udevice *dev, struct udevice **emulp);
+
+/**
+ * i2c_emul_get_device() - Find the device being emulated
+ *
+ * Given an emulator this returns the associated device
+ *
+ * @emul: Emulator for the device
+ * @return device that @emul is emulating
+ */
+struct udevice *i2c_emul_get_device(struct udevice *emul);
+
 #ifndef CONFIG_DM_I2C
 
 /*
@@ -661,12 +682,7 @@ extern struct i2c_bus_hose	i2c_bus[];
 #endif
 
 #ifndef I2C_SOFT_DECLARATIONS
-# if defined(CONFIG_MPC8260)
-#  define I2C_SOFT_DECLARATIONS volatile ioport_t *iop = ioport_addr((immap_t *)CONFIG_SYS_IMMR, I2C_PORT);
-# elif defined(CONFIG_8xx)
-#  define I2C_SOFT_DECLARATIONS	volatile immap_t *immr = (immap_t *)CONFIG_SYS_IMMR;
-
-# elif (defined(CONFIG_AT91RM9200) || \
+# if (defined(CONFIG_AT91RM9200) || \
 	defined(CONFIG_AT91SAM9260) ||  defined(CONFIG_AT91SAM9261) || \
 	defined(CONFIG_AT91SAM9263))
 #  define I2C_SOFT_DECLARATIONS	at91_pio_t *pio	= (at91_pio_t *) ATMEL_BASE_PIOA;
@@ -675,15 +691,6 @@ extern struct i2c_bus_hose	i2c_bus[];
 # endif
 #endif
 
-#ifdef CONFIG_8xx
-/* Set default value for the I2C bus speed on 8xx. In the
- * future, we'll define these in all 8xx board config files.
- */
-#ifndef	CONFIG_SYS_I2C_SPEED
-#define	CONFIG_SYS_I2C_SPEED	50000
-#endif
-#endif
-
 /*
  * Many boards/controllers/drivers don't support an I2C slave interface so
  * provide a default slave address for them for use in common code.  A real
@@ -815,11 +822,6 @@ static inline u8 i2c_reg_read(u8 addr, u8 reg)
 {
 	u8 buf;
 
-#ifdef CONFIG_8xx
-	/* MPC8xx needs this.  Maybe one day we can get rid of it. */
-	i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
-#endif
-
 #ifdef DEBUG
 	printf("%s: addr=0x%02x, reg=0x%02x\n", __func__, addr, reg);
 #endif
@@ -831,11 +833,6 @@ static inline u8 i2c_reg_read(u8 addr, u8 reg)
 
 static inline void i2c_reg_write(u8 addr, u8 reg, u8 val)
 {
-#ifdef CONFIG_8xx
-	/* MPC8xx needs this.  Maybe one day we can get rid of it. */
-	i2c_init(CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
-#endif
-
 #ifdef DEBUG
 	printf("%s: addr=0x%02x, reg=0x%02x, val=0x%02x\n",
 	       __func__, addr, reg, val);