From 6002bf03b4965053d7112c4ea2125d0b6548b0e9 Mon Sep 17 00:00:00 2001 From: Graeme Russ Date: Sat, 12 Feb 2011 15:12:12 +1100 Subject: [PATCH] sc520: Release CAR and enable caching --- arch/i386/cpu/sc520/sc520.c | 16 +++++++++++----- 1 file changed, 11 insertions(+), 5 deletions(-) diff --git a/arch/i386/cpu/sc520/sc520.c b/arch/i386/cpu/sc520/sc520.c index e5dcac6..d0c313b 100644 --- a/arch/i386/cpu/sc520/sc520.c +++ b/arch/i386/cpu/sc520/sc520.c @@ -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) { -- 2.7.4