PL310 is the L2$ controller from ARM used in many SoCs. Before jumping
to linux, UBoot will call v7_outer_cache_disable in
cleanup_before_linux_select to disable L2$. This patch is to support
cache disable of PL310.
Signed-off-by: Haifeng Li <haifeng...@timesintelli.com>
---
arch/arm/lib/cache-pl310.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/arm/lib/cache-pl310.c b/arch/arm/lib/cache-pl310.c
index bbaaaa4157..4fd6eda07a 100644
--- a/arch/arm/lib/cache-pl310.c
+++ b/arch/arm/lib/cache-pl310.c
@@ -13,6 +13,11 @@
struct pl310_regs *const pl310 = (struct pl310_regs *)CONFIG_SYS_PL310_BASE;
+void v7_outer_cache_disable(void)
+{
+ writel(0, &pl310->pl310_ctrl);
+}
+
static void pl310_cache_sync(void)
{
writel(0, &pl310->pl310_cache_sync);
--
2.17.1
