X-Git-Url: https://git.kernelconcepts.de/?a=blobdiff_plain;f=README;h=06c09c5c478e3b33ff7f3b30b1e6b2954787140a;hb=a87636da8b79c11c502f738f424acd3df382372f;hp=f00e41b9adbf04a6bd7c6a112c5bc1acb0ada3fb;hpb=9a2accb44f871af9c87c34d1c9ac95010f4e6f09;p=karo-tx-uboot.git

diff --git a/README b/README
index f00e41b9ad..06c09c5c47 100644
--- a/README
+++ b/README
@@ -1,24 +1,8 @@
 #
-# (C) Copyright 2000 - 2012
+# (C) Copyright 2000 - 2013
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 #
-# See file CREDITS for list of people who contributed to this
-# project.
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License as
-# published by the Free Software Foundation; either version 2 of
-# the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.	See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
-# MA 02111-1307 USA
+# SPDX-License-Identifier:	GPL-2.0+
 #
 
 Summary:
@@ -1820,6 +1804,17 @@ CBFS (Coreboot Filesystem) support
 		4th and following
 		BOOTP requests:		delay 0 ... 8 sec
 
+- BOOTP Random transaction ID:
+		CONFIG_BOOTP_RANDOM_ID
+
+		The standard algorithm to generate a DHCP/BOOTP transaction ID
+		by using the MAC address and the current time stamp may not
+		quite unlikely produce duplicate transaction IDs from different
+		clients in the same network. This option creates a transaction
+		ID using the rand() function. Provided that the RNG has been
+		seeded well, this should guarantee unique transaction IDs
+		always.
+
 - DHCP Advanced Options:
 		You can fine tune the DHCP functionality by defining
 		CONFIG_BOOTP_* symbols:
@@ -1980,6 +1975,16 @@ CBFS (Coreboot Filesystem) support
 		    CONFIG_SYS_FSL_I2C2_SLAVE for the slave address of the
 		    second bus.
 
+		- drivers/i2c/tegra_i2c.c:
+		 - activate this driver with CONFIG_SYS_I2C_TEGRA
+		 - This driver adds 4 i2c buses with a fix speed from
+		   100000 and the slave addr 0!
+
+		- drivers/i2c/ppc4xx_i2c.c
+		  - activate this driver with CONFIG_SYS_I2C_PPC4XX
+		  - CONFIG_SYS_I2C_PPC4XX_CH0 activate hardware channel 0
+		  - CONFIG_SYS_I2C_PPC4XX_CH1 activate hardware channel 1
+
 		additional defines:
 
 		CONFIG_SYS_NUM_I2C_BUSES