Merge branch 'origin' into kconfig-for-1.3.1

[u-boot] / cpu / ppc4xx / sdram.c

diff --git a/cpu/ppc4xx/sdram.c b/cpu/ppc4xx/sdram.c
index d520cd3ff4c1ccac13cc63917b66e7825e2dbc83..2724d91f0f15fb8f4934e7ad2e1037785441e215 100644 (file)
--- a/cpu/ppc4xx/sdram.c
+++ b/cpu/ppc4xx/sdram.c
@@ -187,14 +187,14 @@ void sdram_init(void)
                /*
                 * Disable memory controller.
                 */
-               mtsdram0(mem_mcopt1, 0x00000000);
+               mtsdram(mem_mcopt1, 0x00000000);
 
                /*
                 * Set MB0CF for bank 0.
                 */
-               mtsdram0(mem_mb0cf, mb0cf[i].reg);
-               mtsdram0(mem_sdtr1, sdtr1);
-               mtsdram0(mem_rtr, compute_rtr(speed, mb0cf[i].rows, 64));
+               mtsdram(mem_mb0cf, mb0cf[i].reg);
+               mtsdram(mem_sdtr1, sdtr1);
+               mtsdram(mem_rtr, compute_rtr(speed, mb0cf[i].rows, 64));
 
                udelay(200);
 
@@ -203,14 +203,34 @@ void sdram_init(void)
                 * Set DC_EN to '1' and BRD_PRF to '01' for 16 byte PLB Burst
                 * read/prefetch.
                 */
-               mtsdram0(mem_mcopt1, 0x80800000);
+               mtsdram(mem_mcopt1, 0x80800000);
 
                udelay(10000);
 
                if (get_ram_size(0, mb0cf[i].size) == mb0cf[i].size) {
                        /*
-                        * OK, size detected -> all done
+                        * OK, size detected.  Enable second bank if
+                        * defined (assumes same type as bank 0)
                         */
+#ifdef CONFIG_SDRAM_BANK1
+                       u32 b1cr = mb0cf[i].size | mb0cf[i].reg;
+
+                       mtsdram(mem_mcopt1, 0x00000000);
+                       mtsdram(mem_mb1cf, b1cr); /* SDRAM0_B1CR */
+                       mtsdram(mem_mcopt1, 0x80800000);
+                       udelay(10000);
+
+                       /*
+                        * Check if 2nd bank is really available.
+                        * If the size not equal to the size of the first
+                        * bank, then disable the 2nd bank completely.
+                        */
+                       if (get_ram_size((long *)mb0cf[i].size, mb0cf[i].size) !=
+                           mb0cf[i].size) {
+                               mtsdram(mem_mb1cf, 0);
+                               mtsdram(mem_mcopt1, 0);
+                       }
+#endif
                        return;
                }
        }