Merge branch 'wd'

4 files changed, 179 insertions, 18 deletions

diff --git a/doc/README.440-DDR-performance b/doc/README.440-DDR-performance
new file mode 100644
index 0000000..17bc747
--- /dev/null
+++ b/doc/README.440-DDR-performance
@@ -0,0 +1,90 @@
+AMCC suggested to set the PMU bit to 0 for best performace on the
+PPC440 DDR controller. The 440er common DDR setup files (sdram.c &
+spd_sdram.c) are changed accordingly. So all 440er boards using
+these setup routines will automatically receive this performance
+increase.
+
+Please see below some benchmarks done by AMCC to demonstrate this
+performance changes:
+
+
+----------------------------------------
+SDRAM0_CFG0[PMU] = 1 (U-boot default for Bamboo, Yosemite and Yellowstone)
+----------------------------------------
+Stream benchmark results
+-------------------------------------------------------------
+This system uses 8 bytes per DOUBLE PRECISION word.
+-------------------------------------------------------------
+Array size = 2000000, Offset = 0
+Total memory required = 45.8 MB.
+Each test is run 10 times, but only
+the *best* time for each is used.
+-------------------------------------------------------------
+Your clock granularity/precision appears to be 1 microseconds.
+Each test below will take on the order of 112345 microseconds.
+   (= 112345 clock ticks)
+Increase the size of the arrays if this shows that you are not getting
+at least 20 clock ticks per test.
+-------------------------------------------------------------
+WARNING -- The above is only a rough guideline.
+For best results, please be sure you know the precision of your system
+timer.
+-------------------------------------------------------------
+Function      Rate (MB/s)   RMS time     Min time     Max time
+Copy:         256.7683       0.1248       0.1246       0.1250
+Scale:        246.0157       0.1302       0.1301       0.1302
+Add:          255.0316       0.1883       0.1882       0.1885
+Triad:        253.1245       0.1897       0.1896       0.1899
+
+
+TTCP Benchmark Results
+ttcp-t: socket
+ttcp-t: connect
+ttcp-t: buflen=8192, nbuf=2048, align=16384/0, port=5000  tcp  ->
+localhost
+ttcp-t: 16777216 bytes in 0.28 real seconds = 454.29 Mbit/sec +++
+ttcp-t: 2048 I/O calls, msec/call = 0.14, calls/sec = 7268.57
+ttcp-t: 0.0user 0.1sys 0:00real 60% 0i+0d 0maxrss 0+2pf 3+1506csw
+
+----------------------------------------
+SDRAM0_CFG0[PMU] = 0 (Suggested modification)
+Setting PMU = 0 provides a noticeable performance improvement *2% to
+5% improvement in memory performance.
+*Improves the Mbit/sec for TTCP benchmark by almost 76%.
+----------------------------------------
+Stream benchmark results
+-------------------------------------------------------------
+This system uses 8 bytes per DOUBLE PRECISION word.
+-------------------------------------------------------------
+Array size = 2000000, Offset = 0
+Total memory required = 45.8 MB.
+Each test is run 10 times, but only
+the *best* time for each is used.
+-------------------------------------------------------------
+Your clock granularity/precision appears to be 1 microseconds.
+Each test below will take on the order of 120066 microseconds.
+   (= 120066 clock ticks)
+Increase the size of the arrays if this shows that you are not getting
+at least 20 clock ticks per test.
+-------------------------------------------------------------
+WARNING -- The above is only a rough guideline.
+For best results, please be sure you know the precision of your system
+timer.
+-------------------------------------------------------------
+Function      Rate (MB/s)   RMS time     Min time     Max time
+Copy:         262.5167       0.1221       0.1219       0.1223
+Scale:        258.4856       0.1238       0.1238       0.1240
+Add:          262.5404       0.1829       0.1828       0.1831
+Triad:        266.8594       0.1800       0.1799       0.1802
+
+TTCP Benchmark Results
+ttcp-t: socket
+ttcp-t: connect
+ttcp-t: buflen=8192, nbuf=2048, align=16384/0, port=5000  tcp  ->
+localhost
+ttcp-t: 16777216 bytes in 0.16 real seconds = 804.06 Mbit/sec +++
+ttcp-t: 2048 I/O calls, msec/call = 0.08, calls/sec = 12864.89
+ttcp-t: 0.0user 0.0sys 0:00real 46% 0i+0d 0maxrss 0+2pf 120+1csw
+
+
+2006-07-28, Stefan Roese <sr@denx.de>
diff --git a/doc/README.bamboo b/doc/README.bamboo
new file mode 100644
index 0000000..b50be01
--- /dev/null
+++ b/doc/README.bamboo
@@ -0,0 +1,15 @@
+The configuration for the AMCC 440EP eval board "Bamboo" was changed
+to only use 384 kbytes of FLASH for the U-Boot image. This way the
+redundant environment can be saved in the remaining 2 sectors of the
+same flash chip.
+
+Caution: With an upgrade from an earlier U-Boot version the current
+environment will be erased since the environment is now saved in
+different sectors. By using the following command the environment can
+be saved after upgrading the U-Boot image and *before* resetting the
+board:
+
+setenv recover_env 'prot off FFF80000 FFF9FFFF;era FFF80000 FFF9FFFF;' \
+	'cp.b FFF60000 FFF80000 20000'
+
+2006-07-27, Stefan Roese <sr@denx.de>
diff --git a/doc/README.m68k b/doc/README.m68k
index d5accdd..6dea2b5 100644
--- a/doc/README.m68k
+++ b/doc/README.m68k
@@ -1,7 +1,12 @@
 
 U-Boot for Motorola M68K
 
-Last Update: January 12, 2004
+====================================================================
+History
+
+August 08,2005; 	Jens Scharsig <esw@bus-elektronik.de>
+			MCF5282 implementation without preloader
+January 12, 2004; 	<josef.baumgartner@telex.de>
 ====================================================================
 
 This file contains status information for the port of U-Boot to the
@@ -33,16 +38,8 @@ CPU specific code is located in: cpu/mcf52x2
 -----------------------------
 CPU specific code is located in: cpu/mcf52x2
 
-At the moment the code isn't fully implemented and still needs a pre-loader!
-The preloader must initialize the processor and then start u-boot. The board
-must be configured for a pre-loader (see 4.1)
-
-For the preloader, please see
-http://mailman.uclinux.org/pipermail/uclinux-dev/2003-December/023384.html
-
-U-boot is configured to run at 0x20000 at default. This can be configured by
-change TEXT_BASE in board/m5282evb/config.mk and CFG_MONITOR_BASE in
-include/configs/M5282EVB.h.
+The MCF5282 Port no longer needs a preloader and can place in external or
+internal FLASH.
 
 
 3. SUPPORTED BOARDs
@@ -67,6 +64,27 @@ Board specific code is located in: board/m5282evb
 
 To configure the board, type: make M5272C3_config
 
+At the moment the code isn't fully implemented and still needs a pre-loader!
+The preloader must initialize the processor and then start u-boot. The board
+must be configured for a pre-loader (see 4.1)
+
+For the preloader, please see
+http://mailman.uclinux.org/pipermail/uclinux-dev/2003-December/023384.html
+
+U-boot is configured to run at 0x20000 at default. This can be configured by
+change TEXT_BASE in board/m5282evb/config.mk and CFG_MONITOR_BASE in
+include/configs/M5282EVB.h.
+
+3.2 BuS EB+MCF-EV123
+---------------------
+
+Board specific code is located in: board/bus/EB+MCF-EV123
+
+To configure the board, type:
+
+make EB+MCF-EV123_config 		for external FLASH
+make EB+MCF-EV123_internal_config 	for internal FLASH
+
 
 4. CONFIGURATION OPTIONS/SETTINGS
 ----------------------------------
@@ -80,7 +98,6 @@ be compiled in. The start address of u-boot must be adjusted in
 the boards config header file (CFG_MONITOR_BASE) and Makefile
 (TEXT_BASE) to the load address.
 
-
 4.1 MCF5272 specific Options/Settings
 -------------------------------------
 
@@ -123,14 +140,27 @@ CFG_INT_FLASH_BASE
 CFG_ENET_BD_BASE
 		-- defines the base addres of the FEC buffer descriptors
 
+CFG_MFD
+		-- defines the PLL Multiplication Factor Devider
+		   (see table 9-4 of MCF user manual)
+CFG_RFD		-- defines the PLL Reduce Frecuency Devider
+		   (see table 9-4 of MCF user manual)
+
+CFG_CSx_BASE	-- defines the base address of chip select x
+CFG_CSx_SIZE	-- defines the memory size (address range) of chip select x
+CFG_CSx_WIDTH	-- defines the bus with of chip select x
+CFG_CSx_RO 	-- if set to 0 chip select x is read/wirte
+			else chipselct is read only
+CFG_CSx_WS	-- defines the number of wait states  of chip select x
+
+CFG_PxDDR	-- defines the contents of the Data Direction Registers
+CFG_PxDAT	-- defines the contents of the Data Registers
+CFG_PXCNT	-- defines the contents of the Port Configuration Registers
+
+CFG_PxPAR	-- defines the function of ports
+
 
 5. COMPILER
 -----------
 To create U-Boot the gcc-2.95.3 compiler set (m68k-elf-20030314) from uClinux.org was used.
 You can download it from: http://www.uclinux.org/pub/uClinux/m68k-elf-tools/
-
-
-Regards,
-
-Josef
-<josef.baumgartner@telex.de>
diff --git a/doc/README.serial_multi b/doc/README.serial_multi
index a8d48fc..40f7815 100644
--- a/doc/README.serial_multi
+++ b/doc/README.serial_multi
@@ -52,3 +52,29 @@ PPC4XX Specific
 	setenv stdout serial0
 	setenv stderr serial0
 	setenv stdin serial0
+
+MPC5xxx Specific
+================
+
+Up to two PSCs can be used as console.
+
+Support for hardware handshake has not been implemented yet.
+
+*) The first (default) console port is defined by:
+	#define CONFIG_PSC_CONSOLE <PSC number>
+
+*) The second (alternative) console port is defined by:
+	#define CONFIG_PSC_CONSOLE2 <PSC number>
+
+*) Commands to switch to the second console:
+	setenv stdout serial1
+	setenv stderr serial1
+	setenv stdin serial1
+
+*) Commands to switch to the first console:
+	setenv stdout serial0
+	setenv stderr serial0
+	setenv stdin serial0
+
+*) If a file descriptor is set to "serial" then the
+   current serial device will be used.