arm: Don't try to support CONFIG_ARMV7_LPAE on ARMv4T

At present if CONFIG_ARMV7_LPAE is defined then mmu_setup() will use
instructions which are invalid on ARMv4T. This happens on Tegra since it
has an ARMv4T boot CPU. Add a check for the architecture version to allow
the code to be built. It will not actually be executed by the boot CPU,
but needs to compile.

Signed-off-by: Simon Glass <sjg@chromium.org>

diff --git a/arch/arm/lib/cache-cp15.c b/arch/arm/lib/cache-cp15.c
index 0f7020a..f293573 100644 (file)
--- a/arch/arm/lib/cache-cp15.c
+++ b/arch/arm/lib/cache-cp15.c
@@ -129,7 +129,7 @@ static inline void mmu_setup(void)
                dram_bank_mmu_setup(i);
        }
 
-#ifdef CONFIG_ARMV7_LPAE
+#if defined(CONFIG_ARMV7_LPAE) && __LINUX_ARM_ARCH__ != 4
        /* Set up 4 PTE entries pointing to our 4 1GB page tables */
        for (i = 0; i < 4; i++) {
                u64 *page_table = (u64 *)(gd->arch.tlb_addr + (4096 * 4));