From c3fafecff12103691613de73f461626fd51fef95 Mon Sep 17 00:00:00 2001
From: wdenk <wdenk>
Date: Mon, 14 Mar 2005 23:01:03 +0000
Subject: [PATCH] Patch by Detlev Zundel, 14 Mar 2005: NC650: changed NAND
 flash addressing to using UPMB

---
 CHANGELOG               |  9 ++++++---
 board/nc650/nc650.c     | 36 ++++++++++++++++++++++++++++++++++++
 include/configs/NC650.h | 12 +++++++++---
 3 files changed, 51 insertions(+), 6 deletions(-)

diff --git a/CHANGELOG b/CHANGELOG
index ad06b11556..5f10666f23 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -2,7 +2,10 @@
 Changes for U-Boot 1.1.3:
 ======================================================================
 
-* Patch by Stefan Roese, 14 March 2005:
+* Patch by Detlev Zundel, 14 Mar 2005:
+  NC650: changed NAND flash addressing to using UPMB
+
+* Patch by Stefan Roese, 14 Mar 2005:
   Update for esd voh405 fpga image
 
 * INKA4x0: Allow initialization of LCD backlight dimming from
@@ -10,7 +13,7 @@ Changes for U-Boot 1.1.3:
 
 * Add port initialization for digital I/O on INKA4x0
 
-* Patch by Stefan Roese, 01 March 2005:
+* Patch by Stefan Roese, 01 Mar 2005:
   Update for esd boards dp405 and hub405
 
 * Fix get_partition_info() parameter error in all other calls
@@ -18,7 +21,7 @@ Changes for U-Boot 1.1.3:
 
 * Enable USB and IDE support for INKA4x0 board
 
-* Patch by Andrew Dyer, 28 February 2005:
+* Patch by Andrew Dyer, 28 Feb 2005:
   fix ext2load passing an incorrect pointer to get_partition_info()
   resulting in load failure for devices other than 0
 
diff --git a/board/nc650/nc650.c b/board/nc650/nc650.c
index e0fa76f922..fe96b93816 100644
--- a/board/nc650/nc650.c
+++ b/board/nc650/nc650.c
@@ -70,6 +70,36 @@ const uint sdram_table[] = {
 	0x7ffffc07, _not_used_, _not_used_, _not_used_
 };
 
+const uint nand_flash_table[] = {
+	/* single read. (offset 0 in upm RAM) */
+	0x0ff3fc04, 0x0ff3fc04, 0x0ff3fc04, 0x0ffffc04,
+	0xfffffc00, 0xfffffc05, 0xfffffc05, 0xfffffc05,
+
+	/* burst read. (offset 8 in upm RAM) */
+	0xffffcc05, 0xffffcc05, 0xffffcc05, 0xffffcc05,
+	0xffffcc05, 0xffffcc05, 0xffffcc05, 0xffffcc05,
+	0xffffcc05, 0xffffcc05, 0xffffcc05, 0xffffcc05,
+	0xffffcc05, 0xffffcc05, 0xffffcc05, 0xffffcc05,
+
+	/* single write. (offset 18 in upm RAM) */
+	0x00fffc04, 0x00fffc04, 0x00fffc04, 0x0ffffc04,
+	0x0ffffc84, 0x0ffffc84, 0xfffffc00, 0xfffffc05,
+
+	/* burst write. (offset 20 in upm RAM) */
+	0xffffcc05, 0xffffcc05, 0xffffcc05, 0xffffcc05,
+	0xffffcc05, 0xffffcc05, 0xffffcc05, 0xffffcc05,
+	0xffffcc05, 0xffffcc05, 0xffffcc05, 0xffffcc05,
+	0xffffcc05, 0xffffcc05, 0xffffcc05, 0xffffcc05,
+
+	/* refresh. (offset 30 in upm RAM) */
+	0xffffcc05, 0xffffcc05, 0xffffcc05, 0xffffcc05,
+	0xffffcc05, 0xffffcc05, 0xffffcc05, 0xffffcc05,
+	0xffffcc05, 0xffffcc05, 0xffffcc05, 0xffffcc05,
+
+	/* exception. (offset 3c in upm RAM) */
+	0xffffcc05, 0xffffcc05, 0xffffcc05, 0xffffcc05
+};
+
 /* ------------------------------------------------------------------------- */
 
 /*
@@ -182,6 +212,12 @@ long int initdram (int board_type)
 
 	udelay (10000);
 
+	/* Configure UPMB for NAND flash access */
+	upmconfig (UPMB, (uint *) nand_flash_table,
+			   sizeof (nand_flash_table) / sizeof (uint));
+
+	memctl->memc_mbmr = CFG_MBMR_NAND;
+
 	return (size_b0);
 }
 
diff --git a/include/configs/NC650.h b/include/configs/NC650.h
index 8966909598..2fc098e8ca 100644
--- a/include/configs/NC650.h
+++ b/include/configs/NC650.h
@@ -309,7 +309,7 @@
 #define CFG_BR0_PRELIM	((FLASH_BASE0_PRELIM & BR_BA_MSK) | BR_PS_8 | BR_V)
 
 /*
- * BR2 and OR2 (NAND Flash)
+ * BR2 and OR2 (NAND Flash) - now addressed through UPMB
  */
 #define CFG_NAND_BASE		0x50000000
 #define CFG_NAND_SIZE		0x04000000
@@ -317,8 +317,8 @@
 #define CFG_OR_TIMING_NAND	(OR_CSNT_SAM | OR_ACS_DIV1 | OR_BI | \
 				 OR_SCY_15_CLK | OR_EHTR | OR_TRLX)
 
-#define CFG_BR2_PRELIM  ((CFG_NAND_BASE & BR_BA_MSK) | BR_PS_8 | BR_V )
-#define CFG_OR2_PRELIM  (((-CFG_NAND_SIZE) & OR_AM_MSK) | CFG_OR_TIMING_NAND)
+#define CFG_BR2_PRELIM  ((CFG_NAND_BASE & BR_BA_MSK) | BR_PS_8 | BR_MS_UPMB | BR_V  )
+#define CFG_OR2_PRELIM  (((-CFG_NAND_SIZE) & OR_AM_MSK) | OR_BI ) 
 
 /*
  * BR3 and OR3 (SDRAM)
@@ -382,6 +382,12 @@
 			 MAMR_AMA_TYPE_1 | MAMR_DSA_1_CYCL | MAMR_G0CLA_A10 | \
 			 MAMR_RLFA_1X    | MAMR_WLFA_1X    | MAMR_TLFA_4X)
 
+/*
+ * MBMR settings for NAND flash
+ */
+
+#define CFG_MBMR_NAND ( MBMR_WLFB_5X )
+
 /*
  * Internal Definitions
  *
-- 
2.39.2