From f3e17bb60221f04278c684d4c97fe5012240a743 Mon Sep 17 00:00:00 2001
From: Jens Ahrensfeld <jens@jayfield.org>
Date: Fri, 29 May 2015 20:05:46 +0000
Subject: [PATCH] - D-cache invalidate before SDRAM read

git-svn-id: http://moon:8086/svn/mips@39 a8ebac50-d88d-4704-bea3-6648445a41b3
---
 src/bootloader/test.c | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/src/bootloader/test.c b/src/bootloader/test.c
index 8ae948c..a412eb0 100644
--- a/src/bootloader/test.c
+++ b/src/bootloader/test.c
@@ -14,10 +14,13 @@ void handler3(void)
 
 void main()
 {
+	uint32_t i;
+	uint32_t data;
 	uint8_t led = 0;
 	volatile uint32_t *pUART0_stat = (uint32_t*)SYS_UART_STAT;
 	volatile uint32_t *pGPIO = (uint32_t*)SYS_GPIO_0_DATA;
 	volatile uint32_t *pGPIODIR = (uint32_t*)SYS_GPIO_0_DIR;
+	volatile uint32_t *pSDRAM = (uint32_t*)FLASH_BASE_MEM;
 	
 	CP0_SR_write(0x0060000D);
 	*pGPIODIR = GPIO_0_DFLT_DIR;
@@ -35,9 +38,21 @@ void main()
 		sputs("Iteration # ");print_word(led);sputs("\n");
 
 		*pGPIO = led;
+		data = 0x10011111;
+		for (i=0; i < 16; i++)
+		{
+			pSDRAM[i] = data;
+			data += 0x10011111;
+		}
+		DCACHE_invalidate_at((uint32_t*)pSDRAM);
+		for (i=0; i < 16; i++)
+		{
+			sputs("SDRAM");print_word(pSDRAM[i]);sputs("\n");
+		}
+		
 		if(led == 0)
 		{
-			memdump((uint8_t*)(0x7FFFEFF0-4096-256), 0, 16, 256);
+			memdump((uint8_t*)pSDRAM, 0, 16, 256);
 		}
 
 		led = (led+1) % 64;