sdram: Use unsigned long for memory test

This makes it twice as fast on 64-bit CPUs when using a 64-bit bus :-)

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

diff --git a/litex/soc/software/liblitedram/sdram.c b/litex/soc/software/liblitedram/sdram.c
index 55ea65f164ad43f443ed5690bb84917ca21557bf..52b3455bc883c60dff0d324aa575713418593c5c 100644 (file)
--- a/litex/soc/software/liblitedram/sdram.c
+++ b/litex/soc/software/liblitedram/sdram.c
@@ -878,12 +878,13 @@ static int memtest_addr(void)
 
 static void memspeed(void)
 {
-       volatile unsigned int *array = (unsigned int *)MAIN_RAM_BASE;
+       volatile unsigned long *array = (unsigned long *)MAIN_RAM_BASE;
        int i;
        unsigned int start, end;
        unsigned long write_speed;
        unsigned long read_speed;
-       __attribute__((unused)) unsigned int data;
+       __attribute__((unused)) unsigned long data;
+       const unsigned int sz = sizeof(unsigned long);
 
        /* init timer */
        timer0_en_write(0);
@@ -894,7 +895,7 @@ static void memspeed(void)
        /* write speed */
        timer0_update_value_write(1);
        start = timer0_value_read();
-       for(i=0;i<MEMTEST_DATA_SIZE/4;i++) {
+       for(i=0;i<MEMTEST_DATA_SIZE/sz;i++) {
                array[i] = i;
        }
        timer0_update_value_write(1);
@@ -911,7 +912,7 @@ static void memspeed(void)
        timer0_en_write(1);
        timer0_update_value_write(1);
        start = timer0_value_read();
-       for(i=0;i<MEMTEST_DATA_SIZE/4;i++) {
+       for(i=0;i<MEMTEST_DATA_SIZE/sz;i++) {
                data = array[i];
        }
        timer0_update_value_write(1);