commit 548738b4d43af841ff58c787bce297ac6a8bf7d1
author Heiko Schocher <hs@denx.de> Thu Jan 07 08:55:40 2010 +0100
committer Wolfgang Denk <wd@denx.de> Mon Jan 18 00:42:37 2010 +0100
tree 2d703671e76278a06143bc68e0436ae59e642552
parent b63815e31355b44e65899b361da1d8ef6940ab90

cmd_eeprom: I2C updates

- CONFIG_ENV_EEPROM_IS_ON_I2C
  define this, if you have I2C and SPI activated, and your
  EEPROM, which holds the environment, is on the I2C bus.

- CONFIG_I2C_ENV_EEPROM_BUS
  if you have an Environment on an EEPROM reached over
  I2C muxes, you can now define, how to reach this
  EEPROM.

Signed-off-by: Heiko Schocher <hs@denx.de>

common/cmd_eeprom.c

diff --git a/common/cmd_eeprom.c b/common/cmd_eeprom.c
index 102efaf..519b510 100644
--- a/common/cmd_eeprom.c
+++ b/common/cmd_eeprom.c
@@ -79,7 +79,7 @@
 		ulong cnt  = simple_strtoul (argv[4], NULL, 16);
 #endif /* CONFIG_SYS_I2C_MULTI_EEPROMS */
 
-# ifndef CONFIG_SPI
+# if !defined(CONFIG_SPI) || defined(CONFIG_ENV_EEPROM_IS_ON_I2C)
 		eeprom_init ();
 # endif /* !CONFIG_SPI */
 
@@ -118,7 +118,7 @@
  *   0x00000nxx for EEPROM address selectors and page number at n.
  */
 
-#ifndef CONFIG_SPI
+#if !defined(CONFIG_SPI) || defined(CONFIG_ENV_EEPROM_IS_ON_I2C)
 #if !defined(CONFIG_SYS_I2C_EEPROM_ADDR_LEN) || CONFIG_SYS_I2C_EEPROM_ADDR_LEN < 1 || CONFIG_SYS_I2C_EEPROM_ADDR_LEN > 2
 #error CONFIG_SYS_I2C_EEPROM_ADDR_LEN must be 1 or 2
 #endif
@@ -176,7 +176,7 @@
 			len = maxlen;
 #endif
 
-#ifdef CONFIG_SPI
+#if defined(CONFIG_SPI) && !defined(CONFIG_ENV_EEPROM_IS_ON_I2C)
 		spi_read (addr, alen, buffer, len);
 #else
 		if (i2c_read (addr[0], offset, alen-1, buffer, len) != 0)
@@ -272,7 +272,7 @@
 			len = maxlen;
 #endif
 
-#ifdef CONFIG_SPI
+#if defined(CONFIG_SPI) && !defined(CONFIG_ENV_EEPROM_IS_ON_I2C)
 		spi_write (addr, alen, buffer, len);
 #else
 #if defined(CONFIG_SYS_EEPROM_X40430)
@@ -374,7 +374,7 @@
 	return rcode;
 }
 
-#ifndef CONFIG_SPI
+#if !defined(CONFIG_SPI) || defined(CONFIG_ENV_EEPROM_IS_ON_I2C)
 int
 eeprom_probe (unsigned dev_addr, unsigned offset)
 {
@@ -403,7 +403,8 @@
 
 void eeprom_init  (void)
 {
-#if defined(CONFIG_SPI)
+
+#if defined(CONFIG_SPI) && !defined(CONFIG_ENV_EEPROM_IS_ON_I2C)
 	spi_init_f ();
 #endif
 #if defined(CONFIG_HARD_I2C) || \
@@ -411,6 +412,7 @@
 	i2c_init (CONFIG_SYS_I2C_SPEED, CONFIG_SYS_I2C_SLAVE);
 #endif
 }
+
 /*-----------------------------------------------------------------------
  */