[U-Boot-Users] [PATCH v2 04/12] TQM85xx: Support for Spansion 'N' type flashes added

[Wolfgang Grandegegr]

From: Wolfgang Grandegger <wg at grandegger.com>

The 'N' type Spansion flashes (S29GLxxxN series) have bigger sectors,
than the formerly used 'M' types (S29GLxxxM series), so the flash layout
needs to be changed -> new start address of the environment. The macro
definition CONFIG_TQM_FLASH_N_TYPE is undefined by default and must be
defined for boards with 'N' type flashes.

Signed-off-by: Martin Krause <martin.krause at tqs.de>
Signed-off-by: Wolfgang Grandegger <wg at grandegger.com>
---
 include/configs/TQM85xx.h |   20 ++++++++++++++++----
 1 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/include/configs/TQM85xx.h b/include/configs/TQM85xx.h
index f0e7318..432c155 100644
--- a/include/configs/TQM85xx.h
+++ b/include/configs/TQM85xx.h
@@ -109,6 +109,13 @@
 #endif /* CONFIG_TQM8541 || CONFIG_TQM8555 */
 
 /*
+ * Old TQM85xx boards have 'M' type Spansion Flashes from the S29GLxxxM
+ * series while new boards have 'N' type Flashes from the S29GLxxxN
+ * series, which have bigger sectors: 2 x 128 instead of 2 x 64 KB.
+ */
+#undef CONFIG_TQM_FLASH_N_TYPE
+
+/*
  * Flash on the Local Bus
  */
 #define CFG_FLASH0		0xFC000000
@@ -151,7 +158,7 @@
 #define CFG_INIT_SP_OFFSET	CFG_GBL_DATA_OFFSET
 
 #define CFG_MONITOR_LEN		(256 * 1024)	/* Reserve 256kB for Mon */
-#define CFG_MALLOC_LEN		(128 * 1024)	/* Reserved for malloc	*/
+#define CFG_MALLOC_LEN		(256 * 1024)	/* Reserved for malloc	*/
 
 /* Serial Port */
 #if defined(CONFIG_TQM8560)
@@ -351,10 +358,15 @@
  * Environment
  */
 #define CFG_ENV_IS_IN_FLASH	1
-#define CFG_ENV_ADDR		(CFG_MONITOR_BASE - 0x20000)
-#define CFG_ENV_SECT_SIZE	0x20000	/* 128K(one sector) for env	*/
+
+#ifdef CONFIG_TQM_FLASH_N_TYPE
+#define CFG_ENV_SECT_SIZE	0x40000 /* 256K (one sector) for env	*/
+#else /* !CONFIG_TQM_FLASH_N_TYPE */
+#define CFG_ENV_SECT_SIZE	0x20000 /* 128K (one sector) for env	*/
+#endif /* CONFIG_TQM_FLASH_N_TYPE */
+#define CFG_ENV_ADDR		(CFG_MONITOR_BASE - CFG_ENV_SECT_SIZE)
 #define CFG_ENV_SIZE		0x2000
-#define CFG_ENV_ADDR_REDUND	(CFG_ENV_ADDR-CFG_ENV_SECT_SIZE)
+#define CFG_ENV_ADDR_REDUND	(CFG_ENV_ADDR - CFG_ENV_SECT_SIZE)
 #define CFG_ENV_SIZE_REDUND	(CFG_ENV_SIZE)
 
 #define CONFIG_LOADS_ECHO	1	/* echo on for serial download	*/
-- 
1.5.4.2