arm: mach-omap2: Align image address before cache operations

The image address passed to secure_boot_verify_image() may not be
cacheline aligned, round the address down to the nearest cacheline.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Reviewed-by: Lokesh Vutla <lokeshvutla@ti.com>

diff --git a/arch/arm/mach-omap2/sec-common.c b/arch/arm/mach-omap2/sec-common.c
index 030b36f332a7338db3b9020eedffca8be53a635c..2d54a3165ef3a278b86002e3d1d266c84cfffa97 100644 (file)
--- a/arch/arm/mach-omap2/sec-common.c
+++ b/arch/arm/mach-omap2/sec-common.c
@@ -112,8 +112,8 @@ int secure_boot_verify_image(void **image, size_t *size)
 
        /* Perform cache writeback on input buffer */
        flush_dcache_range(
-               (u32)*image,
-               (u32)*image + roundup(*size, ARCH_DMA_MINALIGN));
+               rounddown((u32)*image, ARCH_DMA_MINALIGN),
+               roundup((u32)*image + *size, ARCH_DMA_MINALIGN));
 
        cert_addr = (uint32_t)*image;
        sig_addr = find_sig_start((char *)*image, *size);
@@ -151,8 +151,8 @@ int secure_boot_verify_image(void **image, size_t *size)
 
        /* Perform cache writeback on output buffer */
        flush_dcache_range(
-               (u32)*image,
-               (u32)*image + roundup(*size, ARCH_DMA_MINALIGN));
+               rounddown((u32)*image, ARCH_DMA_MINALIGN),
+               roundup((u32)*image + *size, ARCH_DMA_MINALIGN));
 
 auth_exit:
        if (result != 0) {