avr32: Rework SDRAM initialization code

This cleans up the SDRAM initialization and related code a bit, and
allows faster booting.

  * Add definitions for EBI and internal SRAM to asm/arch/memory-map.h
  * Remove memory test from sdram_init() and make caller responsible
    for verifying the SDRAM and determining its size.
  * Remove base_address member from struct sdram_config (was sdram_info)
  * Add data_bits member to struct sdram_config and kill CFG_SDRAM_16BIT
  * Add support for a common STK1000 hack: 16MB SDRAM instead of 8.

Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com>

5 files changed, 35 insertions, 39 deletions

diff --git a/include/configs/atngw100.h b/include/configs/atngw100.h
index 313298a..3fc9975 100644
--- a/include/configs/atngw100.h
+++ b/include/configs/atngw100.h
@@ -24,6 +24,8 @@
 #ifndef __CONFIG_H
 #define __CONFIG_H
 
+#include <asm/arch/memory-map.h>
+
 #define CONFIG_AVR32			1
 #define CONFIG_AT32AP			1
 #define CONFIG_AT32AP7000		1
@@ -140,11 +142,9 @@
 
 #define CFG_MONITOR_BASE		CFG_FLASH_BASE
 
-#define CFG_INTRAM_BASE			0x24000000
-#define CFG_INTRAM_SIZE			0x8000
-
-#define CFG_SDRAM_BASE			0x10000000
-#define CFG_SDRAM_16BIT			1
+#define CFG_INTRAM_BASE			INTERNAL_SRAM_BASE
+#define CFG_INTRAM_SIZE			INTERNAL_SRAM_SIZE
+#define CFG_SDRAM_BASE			EBI_SDRAM_BASE
 
 #define CFG_ENV_IS_IN_FLASH		1
 #define CFG_ENV_SIZE			65536
@@ -153,17 +153,10 @@
 #define CFG_INIT_SP_ADDR		(CFG_INTRAM_BASE + CFG_INTRAM_SIZE)
 
 #define CFG_MALLOC_LEN			(256*1024)
-#define CFG_MALLOC_END							\
-	({								\
-		DECLARE_GLOBAL_DATA_PTR;				\
-		CFG_SDRAM_BASE + gd->sdram_size;			\
-	})
-#define CFG_MALLOC_START		(CFG_MALLOC_END - CFG_MALLOC_LEN)
-
 #define CFG_DMA_ALLOC_LEN		(16384)
 
 /* Allow 4MB for the kernel run-time image */
-#define CFG_LOAD_ADDR			(CFG_SDRAM_BASE + 0x00400000)
+#define CFG_LOAD_ADDR			(EBI_SDRAM_BASE + 0x00400000)
 #define CFG_BOOTPARAMS_LEN		(16 * 1024)
 
 /* Other configuration settings that shouldn't have to change all that often */
@@ -173,7 +166,7 @@
 #define CFG_PBSIZE			(CFG_CBSIZE + sizeof(CFG_PROMPT) + 16)
 #define CFG_LONGHELP			1
 
-#define CFG_MEMTEST_START		CFG_SDRAM_BASE
+#define CFG_MEMTEST_START		EBI_SDRAM_BASE
 #define CFG_MEMTEST_END			(CFG_MEMTEST_START + 0x1f00000)
 
 #define CFG_BAUDRATE_TABLE { 115200, 38400, 19200, 9600, 2400 }
diff --git a/include/configs/atstk1002.h b/include/configs/atstk1002.h
index f652b28..ba18eb6 100644
--- a/include/configs/atstk1002.h
+++ b/include/configs/atstk1002.h
@@ -24,6 +24,8 @@
 #ifndef __CONFIG_H
 #define __CONFIG_H
 
+#include <asm/arch/memory-map.h>
+
 #define CONFIG_AVR32			1
 #define CONFIG_AT32AP			1
 #define CONFIG_AT32AP7000		1
@@ -170,10 +172,9 @@
 
 #define CFG_MONITOR_BASE		CFG_FLASH_BASE
 
-#define CFG_INTRAM_BASE			0x24000000
-#define CFG_INTRAM_SIZE			0x8000
-
-#define CFG_SDRAM_BASE			0x10000000
+#define CFG_INTRAM_BASE			INTERNAL_SRAM_BASE
+#define CFG_INTRAM_SIZE			INTERNAL_SRAM_SIZE
+#define CFG_SDRAM_BASE			EBI_SDRAM_BASE
 
 #define CFG_ENV_IS_IN_FLASH		1
 #define CFG_ENV_SIZE			65536
@@ -185,7 +186,7 @@
 #define CFG_DMA_ALLOC_LEN		(16384)
 
 /* Allow 4MB for the kernel run-time image */
-#define CFG_LOAD_ADDR			(CFG_SDRAM_BASE + 0x00400000)
+#define CFG_LOAD_ADDR			(EBI_SDRAM_BASE + 0x00400000)
 #define CFG_BOOTPARAMS_LEN		(16 * 1024)
 
 /* Other configuration settings that shouldn't have to change all that often */
@@ -195,7 +196,7 @@
 #define CFG_PBSIZE			(CFG_CBSIZE + sizeof(CFG_PROMPT) + 16)
 #define CFG_LONGHELP			1
 
-#define CFG_MEMTEST_START		CFG_SDRAM_BASE
+#define CFG_MEMTEST_START		EBI_SDRAM_BASE
 #define CFG_MEMTEST_END			(CFG_MEMTEST_START + 0x700000)
 #define CFG_BAUDRATE_TABLE { 115200, 38400, 19200, 9600, 2400 }
 
diff --git a/include/configs/atstk1003.h b/include/configs/atstk1003.h
index 2d981cc..a528ddf 100644
--- a/include/configs/atstk1003.h
+++ b/include/configs/atstk1003.h
@@ -24,6 +24,8 @@
 #ifndef __CONFIG_H
 #define __CONFIG_H
 
+#include <asm/arch/memory-map.h>
+
 #define CONFIG_AVR32			1
 #define CONFIG_AT32AP			1
 #define CONFIG_AT32AP7001		1
@@ -153,10 +155,9 @@
 
 #define CFG_MONITOR_BASE		CFG_FLASH_BASE
 
-#define CFG_INTRAM_BASE			0x24000000
-#define CFG_INTRAM_SIZE			0x8000
-
-#define CFG_SDRAM_BASE			0x10000000
+#define CFG_INTRAM_BASE			INTERNAL_SRAM_BASE
+#define CFG_INTRAM_SIZE			INTERNAL_SRAM_SIZE
+#define CFG_SDRAM_BASE			EBI_SDRAM_BASE
 
 #define CFG_ENV_IS_IN_FLASH		1
 #define CFG_ENV_SIZE			65536
@@ -167,7 +168,7 @@
 #define CFG_MALLOC_LEN			(256*1024)
 
 /* Allow 4MB for the kernel run-time image */
-#define CFG_LOAD_ADDR			(CFG_SDRAM_BASE + 0x00400000)
+#define CFG_LOAD_ADDR			(EBI_SDRAM_BASE + 0x00400000)
 #define CFG_BOOTPARAMS_LEN		(16 * 1024)
 
 /* Other configuration settings that shouldn't have to change all that often */
@@ -177,7 +178,7 @@
 #define CFG_PBSIZE			(CFG_CBSIZE + sizeof(CFG_PROMPT) + 16)
 #define CFG_LONGHELP			1
 
-#define CFG_MEMTEST_START		CFG_SDRAM_BASE
+#define CFG_MEMTEST_START		EBI_SDRAM_BASE
 #define CFG_MEMTEST_END			(CFG_MEMTEST_START + 0x700000)
 #define CFG_BAUDRATE_TABLE { 115200, 38400, 19200, 9600, 2400 }
 
diff --git a/include/configs/atstk1004.h b/include/configs/atstk1004.h
index 235c1cc..fc9585e 100644
--- a/include/configs/atstk1004.h
+++ b/include/configs/atstk1004.h
@@ -24,6 +24,8 @@
 #ifndef __CONFIG_H
 #define __CONFIG_H
 
+#include <asm/arch/memory-map.h>
+
 #define CONFIG_AVR32			1
 #define CONFIG_AT32AP			1
 #define CONFIG_AT32AP7002		1
@@ -153,11 +155,9 @@
 
 #define CFG_MONITOR_BASE		CFG_FLASH_BASE
 
-#define CFG_INTRAM_BASE			0x24000000
-#define CFG_INTRAM_SIZE			0x8000
-
-#define CFG_SDRAM_BASE			0x10000000
-#define CFG_SDRAM_16BIT			1
+#define CFG_INTRAM_BASE			INTERNAL_SRAM_BASE
+#define CFG_INTRAM_SIZE			INTERNAL_SRAM_SIZE
+#define CFG_SDRAM_BASE			EBI_SDRAM_BASE
 
 #define CFG_ENV_IS_IN_FLASH		1
 #define CFG_ENV_SIZE			65536
@@ -168,7 +168,7 @@
 #define CFG_MALLOC_LEN			(256*1024)
 
 /* Allow 2MB for the kernel run-time image */
-#define CFG_LOAD_ADDR			(CFG_SDRAM_BASE + 0x00200000)
+#define CFG_LOAD_ADDR			(EBI_SDRAM_BASE + 0x00200000)
 #define CFG_BOOTPARAMS_LEN		(16 * 1024)
 
 /* Other configuration settings that shouldn't have to change all that often */
@@ -178,7 +178,7 @@
 #define CFG_PBSIZE			(CFG_CBSIZE + sizeof(CFG_PROMPT) + 16)
 #define CFG_LONGHELP			1
 
-#define CFG_MEMTEST_START		CFG_SDRAM_BASE
+#define CFG_MEMTEST_START		EBI_SDRAM_BASE
 #define CFG_MEMTEST_END			(CFG_MEMTEST_START + 0x700000)
 #define CFG_BAUDRATE_TABLE { 115200, 38400, 19200, 9600, 2400 }
 
diff --git a/include/configs/atstk1006.h b/include/configs/atstk1006.h
index c606d5d..9fd49a5 100644
--- a/include/configs/atstk1006.h
+++ b/include/configs/atstk1006.h
@@ -24,6 +24,8 @@
 #ifndef __CONFIG_H
 #define __CONFIG_H
 
+#include <asm/arch/memory-map.h>
+
 #define CONFIG_AVR32			1
 #define CONFIG_AT32AP			1
 #define CONFIG_AT32AP7000		1
@@ -170,10 +172,9 @@
 
 #define CFG_MONITOR_BASE		CFG_FLASH_BASE
 
-#define CFG_INTRAM_BASE			0x24000000
-#define CFG_INTRAM_SIZE			0x8000
-
-#define CFG_SDRAM_BASE			0x10000000
+#define CFG_INTRAM_BASE			INTERNAL_SRAM_BASE
+#define CFG_INTRAM_SIZE			INTERNAL_SRAM_SIZE
+#define CFG_SDRAM_BASE			EBI_SDRAM_BASE
 
 #define CFG_ENV_IS_IN_FLASH		1
 #define CFG_ENV_SIZE			65536
@@ -185,7 +186,7 @@
 #define CFG_DMA_ALLOC_LEN		(16384)
 
 /* Allow 4MB for the kernel run-time image */
-#define CFG_LOAD_ADDR			(CFG_SDRAM_BASE + 0x00400000)
+#define CFG_LOAD_ADDR			(EBI_SDRAM_BASE + 0x00400000)
 #define CFG_BOOTPARAMS_LEN		(16 * 1024)
 
 /* Other configuration settings that shouldn't have to change all that often */
@@ -195,7 +196,7 @@
 #define CFG_PBSIZE			(CFG_CBSIZE + sizeof(CFG_PROMPT) + 16)
 #define CFG_LONGHELP			1
 
-#define CFG_MEMTEST_START		CFG_SDRAM_BASE
+#define CFG_MEMTEST_START		EBI_SDRAM_BASE
 #define CFG_MEMTEST_END			(CFG_MEMTEST_START + 0x3f00000)
 #define CFG_BAUDRATE_TABLE { 115200, 38400, 19200, 9600, 2400 }