Update multicore CM9XX support for Integrator AP to allow booting from flash

Patch by Jean-Paul Saman, 8 Feb 2005

1 files changed, 37 insertions, 0 deletions

diff --git a/board/integratorap/integratorap.c b/board/integratorap/integratorap.c
index 31bd1d4..ff074ca 100644
--- a/board/integratorap/integratorap.c
+++ b/board/integratorap/integratorap.c
@@ -75,6 +75,11 @@ int board_init (void)
 
 	gd->flags = 0;
 
+#ifdef CONFIG_CM_REMAP
+extern void cm_remap(void);
+	cm_remap();	/* remaps writeable memory to 0x00000000 */
+#endif
+        
 	icache_enable ();
 
 	flash__init ();
@@ -475,6 +480,38 @@ void ether__init (void)
 ******************************/
 int dram_init (void)
 {
+	DECLARE_GLOBAL_DATA_PTR;
+
+	gd->bd->bi_dram[0].start = PHYS_SDRAM_1;
+	gd->bd->bi_dram[0].size  = PHYS_SDRAM_1_SIZE;
+
+#ifdef CONFIG_CM_SPD_DETECT
+	{
+extern void dram_query(void);
+	unsigned long cm_reg_sdram;
+	unsigned long sdram_shift;
+
+	dram_query();	/* Assembler accesses to CM registers */
+			/* Queries the SPD values   	      */
+
+	/* Obtain the SDRAM size from the CM SDRAM register */
+
+	cm_reg_sdram = *(volatile ulong *)(CM_BASE + OS_SDRAM);
+	/*   Register         SDRAM size
+	 *
+	 *   0xXXXXXXbbb000bb    16 MB
+	 *   0xXXXXXXbbb001bb    32 MB
+	 *   0xXXXXXXbbb010bb    64 MB
+	 *   0xXXXXXXbbb011bb   128 MB
+	 *   0xXXXXXXbbb100bb   256 MB
+         *
+	 */
+	sdram_shift              = ((cm_reg_sdram & 0x0000001C)/4)%4;
+	gd->bd->bi_dram[0].size  = 0x01000000 << sdram_shift;
+
+	}
+#endif /* CM_SPD_DETECT */
+
 	return 0;
 }