Convert CONFIG_ENV_IS_IN_EEPROM to Kconfig

This converts the following to Kconfig:
   CONFIG_ENV_IS_IN_EEPROM

Signed-off-by: Simon Glass <sjg@chromium.org>

1 files changed, 61 insertions, 0 deletions

diff --git a/common/Kconfig b/common/Kconfig
index 2f86e7ca90..4d8ef6640b 100644
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -176,6 +176,67 @@ endmenu
 
 menu "Environment"
 
+config ENV_IS_IN_EEPROM
+	bool "Environment in EEPROM"
+	depends on !CHAIN_OF_TRUST
+	help
+	  Use this if you have an EEPROM or similar serial access
+	  device and a driver for it.
+
+	  - CONFIG_ENV_OFFSET:
+	  - CONFIG_ENV_SIZE:
+
+	  These two #defines specify the offset and size of the
+	  environment area within the total memory of your EEPROM.
+
+	  - CONFIG_SYS_I2C_EEPROM_ADDR:
+	  If defined, specified the chip address of the EEPROM device.
+	  The default address is zero.
+
+	  - CONFIG_SYS_I2C_EEPROM_BUS:
+	  If defined, specified the i2c bus of the EEPROM device.
+
+	  - CONFIG_SYS_EEPROM_PAGE_WRITE_BITS:
+	  If defined, the number of bits used to address bytes in a
+	  single page in the EEPROM device.  A 64 byte page, for example
+	  would require six bits.
+
+	  - CONFIG_SYS_EEPROM_PAGE_WRITE_DELAY_MS:
+	  If defined, the number of milliseconds to delay between
+	  page writes.	The default is zero milliseconds.
+
+	  - CONFIG_SYS_I2C_EEPROM_ADDR_LEN:
+	  The length in bytes of the EEPROM memory array address.  Note
+	  that this is NOT the chip address length!
+
+	  - CONFIG_SYS_I2C_EEPROM_ADDR_OVERFLOW:
+	  EEPROM chips that implement "address overflow" are ones
+	  like Catalyst 24WC04/08/16 which has 9/10/11 bits of
+	  address and the extra bits end up in the "chip address" bit
+	  slots. This makes a 24WC08 (1Kbyte) chip look like four 256
+	  byte chips.
+
+	  Note that we consider the length of the address field to
+	  still be one byte because the extra address bits are hidden
+	  in the chip address.
+
+	  - CONFIG_SYS_EEPROM_SIZE:
+	  The size in bytes of the EEPROM device.
+
+	  - 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 define here, how to reach this
+	  EEPROM. For example:
+
+	  #define CONFIG_I2C_ENV_EEPROM_BUS	  1
+
+	  EEPROM which holds the environment, is reached over
+	  a pca9547 i2c mux with address 0x70, channel 3.
+
 config ENV_IS_IN_FLASH
 	bool "Environment in flash memory"
 	depends on !CHAIN_OF_TRUST