Merge remote-tracking branch 'lsk/v3.10/topic/gator' into linux-linaro-lsk

[firefly-linux-kernel-4.4.55.git] / arch / arm / mach-tegra / common.c

diff --git a/arch/arm/mach-tegra/common.c b/arch/arm/mach-tegra/common.c
index 9f852c6fe5b97360fb9a557c00fb734273802951..d5ebcd0bb6225dc7413f2f270d4032e5f0c4ee92 100644 (file)
--- a/arch/arm/mach-tegra/common.c
+++ b/arch/arm/mach-tegra/common.c
@@ -22,6 +22,7 @@
 #include <linux/io.h>
 #include <linux/clk.h>
 #include <linux/delay.h>
+#include <linux/of.h>
 #include <linux/irqchip.h>
 #include <linux/clk/tegra.h>
 
@@ -80,10 +81,20 @@ void tegra_assert_system_reset(char mode, const char *cmd)
 static void __init tegra_init_cache(void)
 {
 #ifdef CONFIG_CACHE_L2X0
+       static const struct of_device_id pl310_ids[] __initconst = {
+               { .compatible = "arm,pl310-cache",  },
+               {}
+       };
+
+       struct device_node *np;
        int ret;
        void __iomem *p = IO_ADDRESS(TEGRA_ARM_PERIF_BASE) + 0x3000;
        u32 aux_ctrl, cache_type;
 
+       np = of_find_matching_node(NULL, pl310_ids);
+       if (!np)
+               return;
+
        cache_type = readl(p + L2X0_CACHE_TYPE);
        aux_ctrl = (cache_type & 0x700) << (17-8);
        aux_ctrl |= 0x7C400001;