sc520: Release CAR and enable caching
authorGraeme Russ <graeme.russ@gmail.com>
Sat, 12 Feb 2011 04:12:12 +0000 (15:12 +1100)
committerGraeme Russ <graeme.russ@gmail.com>
Sat, 12 Feb 2011 04:12:12 +0000 (15:12 +1100)
arch/i386/cpu/sc520/sc520.c

index e5dcac675beb1c68eacd628c8d5fbef1d2b953a2..d0c313b91a9aa7ce64aef0d8c759bfb61637a0e2 100644 (file)
@@ -51,14 +51,20 @@ int cpu_init_f(void)
            "popl       %%ecx\n"
            "loop 0b\n": : : "ecx");
 
-       if (gd->flags & GD_FLG_COLD_BOOT) {
-               /* turn on the SDRAM write buffer */
-               writeb(0x11, &sc520_mmcr->dbctl);
-       }
-
        return x86_cpu_init_f();
 }
 
+int cpu_init_r(void)
+{
+       /* Disable the PAR used for CAR */
+       writel(0x0000000, &sc520_mmcr->par[2]);
+
+       /* turn on the SDRAM write buffer */
+       writeb(0x11, &sc520_mmcr->dbctl);
+
+       return x86_cpu_init_r();
+}
+
 #ifdef CONFIG_SYS_SC520_RESET
 void reset_cpu(ulong addr)
 {