diff --git a/memory.c b/memory.c
index d790076..5a7c4c4 100644
--- a/memory.c
+++ b/memory.c
@@ -7,7 +7,7 @@
 #include "irq.h"
 
 void _dc_inval_entries(void *start, int count);
-void _dc_flush_entries(void *start, int count);
+void _dc_flush_entries(const void *start, int count);
 void _dc_flush(void);
 void _dc_inval(void);
 void _ic_inval(void);
@@ -169,7 +169,7 @@ void ahb_memflush(enum AHBDEV dev)
 	}
 }
 
-void dc_flushrange(void *start, u32 size)
+void dc_flushrange(const void *start, u32 size)
 {
 	u32 cookie = irq_kill();
 	if(size > 0x4000) {
@@ -180,7 +180,7 @@ void dc_flushrange(void *start, u32 size)
 		_dc_flush_entries(start, (end - start) / LINESIZE);
 	}
 	_drain_write_buffer();
-	//ahb_memflush(MEMORY);
+	ahb_memflush(MEMORY);
 	irq_restore(cookie);
 }
 
@@ -190,7 +190,7 @@ void dc_invalidaterange(void *start, u32 size)
 	void *end = ALIGN_FORWARD(((u8*)start) + size, LINESIZE);
 	start = ALIGN_BACKWARD(start, LINESIZE);
 	_dc_inval_entries(start, (end - start) / LINESIZE);
-	//_magic_bullshit(0);
+	_magic_bullshit(0);
 	irq_restore(cookie);
 }
 
@@ -199,7 +199,7 @@ void dc_flushall(void)
 	u32 cookie = irq_kill();
 	_dc_flush();
 	_drain_write_buffer();
-	//ahb_memflush(MEMORY);
+	ahb_memflush(MEMORY);
 	irq_restore(cookie);
 }
 
@@ -207,7 +207,7 @@ void ic_invalidateall(void)
 {
 	u32 cookie = irq_kill();
 	_ic_inval();
-	//_magic_bullshit(0);
+	_magic_bullshit(0);
 	irq_restore(cookie);
 }
 
@@ -274,6 +274,7 @@ void mem_initialize(void)
 	map_section(0xfff, 0xfff, 0x001, WRITEBACK_CACHE | DOMAIN(0) | AP_RWUSER);
 
 	set_dacr(0xFFFFFFFF); //manager access for all domains, ignore AP
+	set_ttbr((u32)__page_table); //configure translation table
 
 	_drain_write_buffer();
 
diff --git a/memory.h b/memory.h
index a6aa866..6421171 100644
--- a/memory.h
+++ b/memory.h
@@ -15,7 +15,7 @@ enum AHBDEV {
 	RAWF = 0x10F,
 };
 
-void dc_flushrange(void *start, u32 size);
+void dc_flushrange(const void *start, u32 size);
 void dc_invalidaterange(void *start, u32 size);
 void dc_flushall(void);
 void ic_invalidateall(void);
diff --git a/sdhc.c b/sdhc.c
index 2dd2b4b..de4decc 100644
--- a/sdhc.c
+++ b/sdhc.c
@@ -1076,12 +1076,14 @@ int sd_read(sdhci_t *sdhci, u32 start_block, u32 blk_cnt, void *buffer)
 	if(sdhci->is_sdhc == 0)
 		start_block *= 512;
 
+	dc_invalidaterange(buffer, blk_cnt * 512);
 	retval = __sd_cmd(sdhci, SD_CMD_READ_MULTIPLE_BLOCK, SD_R1 | SD_READ, start_block, blk_cnt, buffer, &response, sizeof(response));
 
 	if(retval < 0)
 		sdhc_debug(sdhci->reg_base, "reading blocks failed with %d.", retval);
 	__sd_print_status(sdhci);
 
+
 	return retval;
 }
 
@@ -1104,6 +1106,7 @@ int sd_write(sdhci_t *sdhci, u32 start_block, u32 blk_cnt, const void *buffer)
 	if(sdhci->is_sdhc == 0)
 		start_block *= 512;
 
+	dc_flushrange(buffer, blk_cnt * 512);
 	retval = __sd_cmd(sdhci, SD_CMD_WRITE_MULTIPLE_BLOCK, SD_R1, start_block, blk_cnt, (void *)buffer, &response, sizeof(response));
 
 	if(retval < 0)