From 9d8d5a5bfb64768f29a0cb47fc37cd6f4c40e276 Mon Sep 17 00:00:00 2001
From: Stefan Roese <sr@denx.de>
Date: Thu, 18 Jan 2007 16:05:47 +0100
Subject: [PATCH] [PATCH] Add support for Prodrive SCPU (PDNB3 variant) board

Signed-off-by: Stefan Roese <sr@denx.de>
---
 MAINTAINERS                  |  1 +
 MAKEALL                      |  2 +-
 Makefile                     | 11 +++++++++--
 board/prodrive/pdnb3/flash.c |  4 ++++
 include/configs/pdnb3.h      | 37 ++++++++++++++++++++++++++++++++++--
 5 files changed, 50 insertions(+), 5 deletions(-)

diff --git a/MAINTAINERS b/MAINTAINERS
index 81c113d7b1a..e9203eb05f3 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -465,6 +465,7 @@ Stefan Roese <sr@denx.de>
 
 	ixdpg425		xscale
 	pdnb3			xscale
+	scpu			xscale
 
 Robert Schwebel <r.schwebel@pengutronix.de>
 
diff --git a/MAKEALL b/MAKEALL
index b3e16bc6c5b..40a5c773e59 100755
--- a/MAKEALL
+++ b/MAKEALL
@@ -225,7 +225,7 @@ LIST_pxa="	\
 	xsengine	zylonite					\
 "
 
-LIST_ixp="ixdp425	ixdpg425	pdnb3"
+LIST_ixp="ixdp425	ixdpg425	pdnb3		scpu"
 
 
 LIST_arm="	\
diff --git a/Makefile b/Makefile
index af3300688f7..b1952edfe7f 100644
--- a/Makefile
+++ b/Makefile
@@ -2066,8 +2066,15 @@ pleb2_config	:	unconfig
 logodl_config	:	unconfig
 	@$(MKCONFIG) $(@:_config=) arm pxa logodl
 
-pdnb3_config	:	unconfig
-	@$(MKCONFIG) $(@:_config=) arm ixp pdnb3 prodrive
+pdnb3_config \
+scpu_config:    unconfig
+	@if [ "$(findstring scpu_,$@)" ] ; then \
+		echo "#define CONFIG_SCPU"      >>include/config.h ; \
+		echo "... on SCPU board variant" ; \
+	else \
+		>include/config.h ; \
+	fi
+	@$(MKCONFIG) -a pdnb3 arm ixp pdnb3 prodrive
 
 pxa255_idp_config:	unconfig
 	@$(MKCONFIG) $(@:_config=) arm pxa pxa255_idp
diff --git a/board/prodrive/pdnb3/flash.c b/board/prodrive/pdnb3/flash.c
index d0e5fe703b9..518ea9c0314 100644
--- a/board/prodrive/pdnb3/flash.c
+++ b/board/prodrive/pdnb3/flash.c
@@ -24,6 +24,8 @@
 #include <common.h>
 #include <asm/arch/ixp425.h>
 
+#if !defined(CFG_FLASH_CFI_DRIVER)
+
 /*
  * include common flash code (for esd boards)
  */
@@ -83,3 +85,5 @@ unsigned long flash_init(void)
 
 	return size;
 }
+
+#endif /* CFG_FLASH_CFI_DRIVER */
diff --git a/include/configs/pdnb3.h b/include/configs/pdnb3.h
index ba6b113d8c2..2cc137ce6a8 100644
--- a/include/configs/pdnb3.h
+++ b/include/configs/pdnb3.h
@@ -71,12 +71,18 @@
 #define CONFIG_BAUDRATE         115200
 #define CFG_IXP425_CONSOLE	IXP425_UART1   /* we use UART1 for console */
 
+#if defined(CONFIG_SCPU)
+#define CMD_NAND_ADD		0
+#else
+#define CMD_NAND_ADD		CFG_CMD_NAND
+#endif
+
 #define CONFIG_COMMANDS	       (CONFIG_CMD_DFL	| \
 				CFG_CMD_DHCP	| \
 				CFG_CMD_DATE	| \
 				CFG_CMD_NET	| \
 				CFG_CMD_MII	| \
-				CFG_CMD_NAND	| \
+				CMD_NAND_ADD	| \
 				CFG_CMD_I2C	| \
 				CFG_CMD_ELF	| \
 				CFG_CMD_PING)
@@ -176,12 +182,20 @@
 
 #define CFG_FLASH_BASE          0x50000000
 #define CFG_MONITOR_BASE	CFG_FLASH_BASE
+#if defined(CONFIG_SCPU)
+#define CFG_MONITOR_LEN		(384 << 10)	/* Reserve 512 kB for Monitor	*/
+#else
 #define CFG_MONITOR_LEN		(504 << 10)	/* Reserve 512 kB for Monitor	*/
+#endif
 
 /*
  * Expansion bus settings
  */
+#if defined(CONFIG_SCPU)
+#define CFG_EXP_CS0		0x94d23C42	/* 8bit, max size		*/
+#else
 #define CFG_EXP_CS0		0x94913C43	/* 8bit, max size		*/
+#endif
 #define CFG_EXP_CS1		0x85000043	/* 8bit, 512bytes		*/
 
 /*
@@ -194,6 +208,12 @@
 /*
  * FLASH and environment organization
  */
+#if defined(CONFIG_SCPU)
+#define CFG_FLASH_CFI				/* The flash is CFI compatible	*/
+#define CFG_FLASH_CFI_DRIVER			/* Use common CFI driver	*/
+#define CFG_FLASH_CFI_WIDTH	FLASH_CFI_16BIT	/* no byte writes on IXP4xx	*/
+#endif
+
 #define FLASH_BASE0_PRELIM	CFG_FLASH_BASE		/* FLASH bank #0	*/
 
 #define CFG_MAX_FLASH_BANKS	1	/* max number of memory banks		*/
@@ -217,20 +237,27 @@
 
 #define	CFG_ENV_IS_IN_FLASH	1
 
+#if defined(CONFIG_SCPU)
+#define CFG_ENV_SECT_SIZE	0x20000 	/* size of one complete sector	*/
+#define	CFG_ENV_SIZE		0x4000	/* Total Size of Environment Sector	*/
+#else
 #define CFG_ENV_SECT_SIZE	0x1000 	/* size of one complete sector	*/
-#define CFG_ENV_ADDR		(CFG_FLASH_BASE + CFG_MONITOR_LEN)
 #define	CFG_ENV_SIZE		0x1000	/* Total Size of Environment Sector	*/
+#endif
+#define CFG_ENV_ADDR		(CFG_FLASH_BASE + CFG_MONITOR_LEN)
 
 /* Address and size of Redundant Environment Sector	*/
 #define CFG_ENV_ADDR_REDUND	(CFG_ENV_ADDR + CFG_ENV_SECT_SIZE)
 #define CFG_ENV_SIZE_REDUND	(CFG_ENV_SIZE)
 
+#if !defined(CONFIG_SCPU)
 /*
  * NAND-FLASH stuff
  */
 #define CFG_MAX_NAND_DEVICE	1
 #define NAND_MAX_CHIPS		1
 #define CFG_NAND_BASE		0x51000000	/* NAND FLASH Base Address	*/
+#endif
 
 /*
  * GPIO settings
@@ -284,9 +311,15 @@
 /*
  * I2C RTC
  */
+#if 0 /* test-only */
+#define CONFIG_RTC_DS1340	1
+#define CFG_I2C_RTC_ADDR	0x68
+#else
+/* M41T11 Serial Access Timekeeper(R) SRAM */
 #define CONFIG_RTC_M41T11	1
 #define CFG_I2C_RTC_ADDR	0x68
 #define CFG_M41T11_BASE_YEAR	1900	/* play along with the linux driver */
+#endif
 
 /*
  * Spartan3 FPGA configuration support