xscale: add support for the polaris board

The Polaris board is based on the TrizepsIV module of
Keith & Koep (http://www.keith-koep.com).

Signed-off-by: Stefano Babic <sbabic@denx.de>

MAINTAINERS

@@ -501,6 +501,11 @@ Rowel Atienza <rowel@diwalabs.com>
 
 	armadillo	ARM720T
 
+Stefano Babic <sbabic@denx.de>
+
+	polaris		xscale
+	trizepsiv	xscale
+
 Dirk Behme <dirk.behme@gmail.com>
 
 	omap3_beagle	ARM CORTEX-A8 (OMAP3530 SoC)

MAKEALL

@@ -607,7 +607,9 @@ LIST_pxa="		\
 	innokom		\
 	lubbock		\
 	pleb2		\
+	polaris		\
 	pxa255_idp	\
+	trizepsiv	\
 	wepep250	\
 	xaeniax		\
 	xm250		\

Makefile

@@ -3095,8 +3095,13 @@ scpu_config:	unconfig
 pxa255_idp_config:	unconfig
 	@$(MKCONFIG) $(@:_config=) arm pxa pxa255_idp
 
+polaris_config \
 trizepsiv_config	:	unconfig
-	@$(MKCONFIG) $(@:_config=) arm pxa trizepsiv
+	@mkdir -p $(obj)include
+	@if [ "$(findstring polaris,$@)" ] ; then \
+		echo "#define CONFIG_POLARIS 1"	>>$(obj)include/config.h ; \
+	fi;
+	@$(MKCONFIG) -a trizepsiv arm pxa trizepsiv
 
 wepep250_config	:	unconfig
 	@$(MKCONFIG) $(@:_config=) arm pxa wepep250

board/trizepsiv/conxs.c

@@ -44,6 +44,11 @@ extern struct serial_device serial_ffuart_device;
 extern struct serial_device serial_btuart_device;
 extern struct serial_device serial_stuart_device;
 
+#if CONFIG_POLARIS
+#define BOOT_CONSOLE	"serial_stuart"
+#else
+#define BOOT_CONSOLE	"serial_ffuart"
+#endif
 /* ------------------------------------------------------------------------- */
 
 /*
@@ -113,17 +118,14 @@ int board_late_init(void)
 #if defined(CONFIG_SERIAL_MULTI)
 	char *console=getenv("boot_console");
 
-	if ((strcmp(console,"serial_btuart") == 0) ||
-		(strcmp(console,"serial_stuart") == 0) ||
-		(strcmp(console,"serial_ffuart") == 0)) {
-			setenv("stdout",console);
-			setenv("stdin", console);
-			setenv("stderr",console);
-	} else {
-		setenv("stdout", "serial");
-		setenv("stdin", "serial");
-		setenv("stderr", "serial");
+	if ((console == NULL) || (strcmp(console,"serial_btuart") &&
+		strcmp(console,"serial_stuart") &&
+		strcmp(console,"serial_ffuart"))) {
+			console = BOOT_CONSOLE;
 	}
+	setenv("stdout",console);
+	setenv("stdin", console);
+	setenv("stderr",console);
 #endif
 	return 0;
 }

include/configs/trizepsiv.h

@@ -239,11 +239,17 @@
 #define CONFIG_SYS_GRER1_VAL		0x00000000
 #define CONFIG_SYS_GRER2_VAL		0x00000000
 #define CONFIG_SYS_GRER3_VAL		0x00000000
-#define CONFIG_SYS_GFER0_VAL		0x00000000
+
 #define CONFIG_SYS_GFER1_VAL		0x00000000
-#define CONFIG_SYS_GFER2_VAL		0x00000000
 #define CONFIG_SYS_GFER3_VAL		0x00000020
 
+#if CONFIG_POLARIS
+#define CONFIG_SYS_GFER0_VAL		0x00000001
+#define CONFIG_SYS_GFER2_VAL		0x00200000
+#else
+#define CONFIG_SYS_GFER0_VAL		0x00000000
+#define CONFIG_SYS_GFER2_VAL		0x00000000
+#endif
 
 #define CONFIG_SYS_PSSR_VAL		0x20	/* CHECK */
 
@@ -259,7 +265,11 @@
 
 #define CONFIG_SYS_MSC0_VAL		0x4df84df0
 #define CONFIG_SYS_MSC1_VAL		0x7ff87ff4
+#if CONFIG_POLARIS
+#define CONFIG_SYS_MSC2_VAL		0xa2697ff8
+#else
 #define CONFIG_SYS_MSC2_VAL		0xa26936d4
+#endif
 #define CONFIG_SYS_MDCNFG_VAL		0x880009C9
 #define CONFIG_SYS_MDREFR_VAL		0x20ca201e
 #define CONFIG_SYS_MDMRS_VAL		0x00220022
@@ -280,7 +290,13 @@
 
 #define CONFIG_NET_MULTI		1
 #define CONFIG_DRIVER_DM9000		1
-#define CONFIG_DM9000_BASE	0x08000000
+
+#if CONFIG_POLARIS
+#define CONFIG_DM9000_BASE		0x0C800000
+#else
+#define CONFIG_DM9000_BASE		0x08000000
+#endif
+
 #define DM9000_IO			CONFIG_DM9000_BASE
 #define DM9000_DATA			(CONFIG_DM9000_BASE+0x8004)
 
@@ -312,6 +328,9 @@
 /* write flash less slowly */
 #define CONFIG_SYS_FLASH_USE_BUFFER_WRITE 1
 
+/* Unlock to be used with Intel chips */
+#define CONFIG_SYS_FLASH_PROTECTION	1
+
 /* Flash environment locations */
 #define CONFIG_ENV_IS_IN_FLASH	1
 #define CONFIG_ENV_ADDR		(PHYS_FLASH_1 + CONFIG_SYS_MONITOR_LEN) /* Addr of Environment Sector	*/