ppc4xx: Update AMCC Acadia support for board revision 1.1

This patch updates the Acadia (405EZ) support for the new 1.1 board
revision. It also adds support for NAND FLASH via the 4xx NDFC.

Please note that the jumper J7 must be in position 2-3 for this
NAND support. Position 1-2 is for NAND booting only. NAND booting
support will follow later.

Signed-off-by: Stefan Roese <sr@denx.de>

board/amcc/acadia/acadia.c

@@ -62,6 +62,10 @@ int board_early_init_f(void)
 
 	acadia_gpio_init();
 
+	/* Configure 405EZ for NAND usage */
+	mtsdr(sdrnand0, 0x80c00000);
+	mtsdr(sdrultra0, 0x8d110000);
+
 	/* USB Host core needs this bit set */
 	mfsdr(sdrultra1, reg);
 	mtsdr(sdrultra1, reg | SDR_ULTRA1_LEDNENABLE);
@@ -91,8 +95,11 @@ int misc_init_f(void)
 int checkboard(void)
 {
 	char *s = getenv("serial#");
+	u8 rev;
+
+	rev = in8(CFG_CPLD_BASE + 0);
+	printf("Board: Acadia - AMCC PPC405EZ Evaluation Board, Rev. %X", rev);
 
-	printf("Board: Acadia - AMCC PPC405EZ Evaluation Board");
 	if (s != NULL) {
 		puts(", serial# ");
 		puts(s);

include/configs/acadia.h

@@ -34,7 +34,9 @@
 #define CONFIG_ACADIA		1		/* Board is Acadia	*/
 #define CONFIG_4xx		1		/* ... PPC4xx family	*/
 #define CONFIG_405EZ		1		/* Specifc 405EZ support*/
-#define CONFIG_SYS_CLK_FREQ	66666666	/* external freq to pll	*/
+/* Detect Acadia PLL input clock automatically via CPLD bit		*/
+#define CONFIG_SYS_CLK_FREQ    ((in8(CFG_CPLD_BASE + 0) == 0x0c) ? \
+				66666666 : 33333000)
 
 #define CONFIG_BOARD_EARLY_INIT_F 1		/* Call board_early_init_f */
 #define CONFIG_MISC_INIT_F	1		/* Call misc_init_f	*/
@@ -224,16 +226,6 @@
 #define CONFIG_USB_OHCI
 #define CONFIG_USB_STORAGE
 
-#if 0 /* test-only */
-#define TEST_ONLY_NAND
-#endif
-
-#ifdef TEST_ONLY_NAND
-#define CMD_NAND		CFG_CMD_NAND
-#else
-#define CMD_NAND		0
-#endif
-
 /* Partitions */
 #define CONFIG_MAC_PARTITION
 #define CONFIG_DOS_PARTITION
@@ -252,7 +244,7 @@
 			       CFG_CMD_I2C	|	\
 			       CFG_CMD_IRQ	|	\
 			       CFG_CMD_MII	|	\
-			       CMD_NAND		|	\
+			       CFG_CMD_NAND	|	\
 			       CFG_CMD_NET	|	\
 			       CFG_CMD_NFS	|	\
 			       CFG_CMD_PCI	|	\
@@ -300,7 +292,6 @@
  */
 #define CFG_BOOTMAPSZ		(8 << 20)	/* Initial Memory map for Linux */
 
-#ifdef TEST_ONLY_NAND
 /*-----------------------------------------------------------------------
  * NAND FLASH
  *----------------------------------------------------------------------*/
@@ -308,7 +299,6 @@
 #define NAND_MAX_CHIPS		1
 #define CFG_NAND_BASE		(CFG_NAND_ADDR + CFG_NAND_CS)
 #define CFG_NAND_SELECT_DEVICE  1	/* nand driver supports mutipl. chips	*/
-#endif
 
 /*-----------------------------------------------------------------------
  * Cache Configuration
@@ -322,7 +312,7 @@
 /*-----------------------------------------------------------------------
  * External Bus Controller (EBC) Setup
  *----------------------------------------------------------------------*/
-#define CFG_NAND_CS		0		/* NAND chip connected to CSx	*/
+#define CFG_NAND_CS		3		/* NAND chip connected to CSx	*/
 
 /* Memory Bank 0 (Flash) initialization						*/
 #define CFG_EBC_PB0AP		0x03337200
@@ -358,7 +348,8 @@
 /*-----------------------------------------------------------------------
  * Definitions for GPIO_0 setup (PPC405EZ specific)
  *
- * GPIO0[0-3]	- External Bus Controller CS_4 - CS_7 Outputs
+ * GPIO0[0-2]	- External Bus Controller CS_4 - CS_6 Outputs
+ * GPIO0[3]	- NAND FLASH Controller CE3 (NFCE3) Output
  * GPIO0[4]	- External Bus Controller Hold Input
  * GPIO0[5]	- External Bus Controller Priority Input
  * GPIO0[6]	- External Bus Controller HLDA Output
@@ -376,10 +367,10 @@
  */
 #define CFG_GPIO0_TCR		0xC0000000
 #define CFG_GPIO0_OSRL		0x50000000
-#define CFG_GPIO0_OSRH		0x00000055
+#define CFG_GPIO0_OSRH		0x02000055
 #define CFG_GPIO0_ISR1L		0x00000000
 #define CFG_GPIO0_ISR1H		0x00000055
-#define CFG_GPIO0_TSRL		0x00000000
+#define CFG_GPIO0_TSRL		0x02000000
 #define CFG_GPIO0_TSRH		0x00000055
 
 /*-----------------------------------------------------------------------