ppc44x: Unification of virtex5 pp440 boards

This patch provides an unificated way of handling xilinx v5 ppc440 boards.

It unificates 3 different things:

1) Source code
A new board called ppc440-generic has been created. This board includes
a generic tlb initialization (Maps the whole memory into virtual) and
defines board_pre_init, checkboard, initdram and get_sys_info weakly,
so, they can be replaced by specific functions.

If a new board needs to redefine any of the previous functions
(specific initialization) it can create a new directory with the
specific initializations needed. (see the example ml507 board).

2) Configuration file
Common configurations are located under configs/xilinx-ppc440.h, this
header file interpretes the xparameters file generated by EDK and
configurates u-boot in correspondence. Example: if there is a Temac,
allows CMD_CONFIG_NET
Specific configuration are located under specific configuration file.
(see the example ml507 board)

3) Makefile
Some work has been done in order to not duplicate work in the Main
Makefile. Please see the attached code.

In order to support new boards they can be implemented in the next way:

a) Simple Generic Board  (90% of the time)
Using EDK generates a new xparameters.h file, replace
ppc440-generic/xparameters.h  and run make xilinx-ppc440-generic_config
&& make

b) Simple Boards with special u-boot parameters (9 % of the time)
Create a new file under configs for it (use ml507.h as example) and
change your paramaters. Create a new Makefile paragraph and compile

c) Complex boards (1% of the time)
Create a new folder for the board, like the ml507

Finally, it adds support for the Avnet FX30T Evaluation board, following
the new generic structure:

Cheap board by Avnet for evaluating the Virtex5 FX technology.

This patch adds support for:
 - UartLite
 - 16MB Flash
 - 64MB RAM

Prior using U-boot in this board, read carefully the ERRATA by Avnet
to solve some memory initialization issues.

Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@uam.es>
Signed-off-by: Stefan Roese <sr@denx.de>

1 files changed, 106 insertions, 0 deletions

diff --git a/include/configs/xilinx-ppc440.h b/include/configs/xilinx-ppc440.h
new file mode 100644
index 0000000..40293cd
--- /dev/null
+++ b/include/configs/xilinx-ppc440.h
@@ -0,0 +1,106 @@
+/*
+ * (C) Copyright 2008
+ *  Ricado Ribalda-Universidad Autonoma de Madrid-ricardo.ribalda@uam.es
+ *  This work has been supported by: QTechnology  http://qtec.com/
+ *  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, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __CONFIG_GEN_H
+#define __CONFIG_GEN_H
+/*
+#define DEBUG
+#define ET_DEBUG
+*/
+ /*CPU*/
+#define CONFIG_XILINX_440	1
+#define CONFIG_440		1
+#define CONFIG_4xx		1
+
+/*Mem Map*/
+#define CFG_SDRAM_BASE		0x0
+#define CFG_MONITOR_BASE	TEXT_BASE
+#define CFG_MONITOR_LEN		(192 * 1024)
+#define CFG_MALLOC_LEN		(CFG_ENV_SIZE + 128 * 1024)
+
+/*Uart*/
+#define CONFIG_XILINX_UARTLITE
+#define CONFIG_BAUDRATE		XPAR_UARTLITE_0_BAUDRATE
+#define CFG_BAUDRATE_TABLE	{ XPAR_UARTLITE_0_BAUDRATE }
+#define CONFIG_SERIAL_BASE	XPAR_UARTLITE_0_BASEADDR
+
+/*Cmd*/
+#include <config_cmd_default.h>
+#define CONFIG_CMD_ASKENV
+#define CONFIG_CMD_CACHE
+#define CONFIG_CMD_DIAG
+#define CONFIG_CMD_ELF
+#define CONFIG_CMD_IRQ
+#define CONFIG_CMD_REGINFO
+#define CONFIG_CMD_JFFS2
+#define CONFIG_JFFS2_CMDLINE
+#undef CONFIG_CMD_SPI
+#undef CONFIG_CMD_I2C
+#undef CONFIG_CMD_DTT
+#undef CONFIG_CMD_NET
+#undef CONFIG_CMD_PING
+#undef CONFIG_CMD_DHCP
+#undef CONFIG_CMD_EEPROM
+#undef CONFIG_CMD_IMLS
+
+/*Misc*/
+#define CONFIG_BOOTDELAY	5	/* autoboot after 5 seconds     */
+#define CFG_LONGHELP			/* undef to save memory         */
+#if defined(CONFIG_CMD_KGDB)
+#define CFG_CBSIZE		1024	/* Console I/O Buffer Size      */
+#else
+#define CFG_CBSIZE		256	/* Console I/O Buffer Size      */
+#endif
+#define CFG_PBSIZE		(CFG_CBSIZE + sizeof(CFG_PROMPT) + 16)
+#define CFG_MAXARGS		16	/* max number of command args   */
+#define CFG_BARGSIZE		CFG_CBSIZE	/* Boot Argument Buffer Size */
+#define CFG_MEMTEST_START	0x00400000	/* memtest works on           */
+#define CFG_MEMTEST_END		0x00C00000	/* 4 ... 12 MB in DRAM        */
+#define CFG_LOAD_ADDR		0x00400000	/* default load address       */
+#define CFG_EXTBDINFO		1	/* Extended board_into (bd_t) */
+#define CFG_HZ			1000	/* decrementer freq: 1 ms ticks */
+#define CONFIG_CMDLINE_EDITING		/* add command line history     */
+#define CONFIG_AUTO_COMPLETE		/* add autocompletion support   */
+#define CONFIG_LOOPW			/* enable loopw command         */
+#define CONFIG_MX_CYCLIC		/* enable mdc/mwc commands      */
+#define CONFIG_ZERO_BOOTDELAY_CHECK	/* check for keypress on bootdelay==0 */
+#define CONFIG_VERSION_VARIABLE		/* include version env variable */
+#define CFG_CONSOLE_INFO_QUIET		/* don't print console @ startup */
+#define CFG_HUSH_PARSER			/* Use the HUSH parser          */
+#define	CFG_PROMPT_HUSH_PS2	"> "
+#define CONFIG_LOADS_ECHO		/* echo on for serial download  */
+#define CFG_LOADS_BAUD_CHANGE		/* allow baudrate change        */
+#define CFG_BOOTMAPSZ		(8 << 20)/* Initial Memory map for Linux */
+
+/*Stack*/
+#define CFG_INIT_RAM_ADDR	0x800000	/* Initial RAM address    */
+#define CFG_INIT_RAM_END	0x2000		/* End of used area in RAM  */
+#define CFG_GBL_DATA_SIZE	128		/* num bytes initial data   */
+#define CFG_GBL_DATA_OFFSET	(CFG_INIT_RAM_END - CFG_GBL_DATA_SIZE)
+#define CFG_INIT_SP_OFFSET	CFG_GBL_DATA_OFFSET
+/*Speed*/
+#define CONFIG_SYS_CLK_FREQ	XPAR_CORE_CLOCK_FREQ_HZ
+
+/*Flash*/
+#define	CFG_FLASH_BASE		XPAR_FLASH_MEM0_BASEADDR
+#define	CFG_FLASH_CFI		1
+#define	CONFIG_FLASH_CFI_DRIVER	1
+#define	CFG_FLASH_EMPTY_INFO	1
+#define	CFG_MAX_FLASH_BANKS	1
+#define	CFG_FLASH_PROTECTION
+
+#endif						/* __CONFIG_H */