tools: kwbimage: Enforce 128-bit boundary alignment only for Sheeva CPU

This alignment is required only for platforms based on Sheeva CPU core
which are A370 and AXP. Now when U-Boot build system correctly propagates
LOAD_ADDRESS there is no need to have enabled 128-bit boundary alignment on
platforms which do not need it. Previously it was required because load
address was implicitly rounded to 128-bit boundary and U-Boot build system
expected it and misused it. Now with explicit setting of LOAD_ADDRESS there
is no guessing for load address anymore.

Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>

diff --git a/tools/kwbimage.c b/tools/kwbimage.c
index ce053a4..7c21060 100644 (file)
--- a/tools/kwbimage.c
+++ b/tools/kwbimage.c
@@ -1101,8 +1101,10 @@ static size_t image_headersz_v1(int *hasext)
                                return 0;
                        }
                        headersz = e->binary.loadaddr - base_addr;
-               } else {
+               } else if (cpu_sheeva) {
                        headersz = ALIGN(headersz, 16);
+               } else {
+                       headersz = ALIGN(headersz, 4);
                }
 
                headersz += ALIGN(s.st_size, 4) + sizeof(uint32_t);
@@ -1158,8 +1160,8 @@ static int add_binary_header_v1(uint8_t **cur, uint8_t **next_ext,
        *cur += (binarye->binary.nargs + 1) * sizeof(uint32_t);
 
        /*
-        * ARM executable code inside the BIN header on some mvebu platforms
-        * (e.g. A370, AXP) must always be aligned with the 128-bit boundary.
+        * ARM executable code inside the BIN header on platforms with Sheeva
+        * CPU (A370 and AXP) must always be aligned with the 128-bit boundary.
         * In the case when this code is not position independent (e.g. ARM
         * SPL), it must be placed at fixed load and execute address.
         * This requirement can be met by inserting dummy arguments into
@@ -1170,8 +1172,10 @@ static int add_binary_header_v1(uint8_t **cur, uint8_t **next_ext,
        offset = *cur - (uint8_t *)main_hdr;
        if (binarye->binary.loadaddr)
                add_args = (binarye->binary.loadaddr - base_addr - offset) / sizeof(uint32_t);
-       else
+       else if (cpu_sheeva)
                add_args = ((16 - offset % 16) % 16) / sizeof(uint32_t);
+       else
+               add_args = 0;
        if (add_args) {
                *(args - 1) = cpu_to_le32(binarye->binary.nargs + add_args);
                *cur += add_args * sizeof(uint32_t);