arm: imx: hab: Prefix authenticate_image with imx_hab

Tidy up the HAB namespace a bit by prefixing external functions with
imx_hab. All external facing functions past this point will be prefixed in
the same way to make the fact we are doing IMX HAB activities clear from
reading the code. authenticate_image() could mean anything
imx_hab_authenticate_image() is on the other hand very explicit.
Signed-off-by: NBryan O'Donoghue <bryan.odonoghue@linaro.org>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Fabio Estevam <fabio.estevam@nxp.com>
Cc: Peng Fan <peng.fan@nxp.com>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Cc: Sven Ebenfeld <sven.ebenfeld@gmail.com>
Cc: George McCollister <george.mccollister@gmail.com>
Cc: Breno Matheus Lima <brenomatheus@gmail.com>
Tested-by: NBreno Lima <breno.lima@nxp.com>
Reviewed-by: NFabio Estevam <fabio.estevam@nxp.com>

arch/arm/include/asm/mach-imx/hab.h

@@ -185,7 +185,7 @@ typedef void hapi_clock_init_t(void);
 
 /* ----------- end of HAB API updates ------------*/
 
-int authenticate_image(uint32_t ddr_start, uint32_t image_size,
-		       uint32_t ivt_offset);
+int imx_hab_authenticate_image(uint32_t ddr_start, uint32_t image_size,
+			       uint32_t ivt_offset);
 
 #endif

arch/arm/mach-imx/hab.c

@@ -392,7 +392,7 @@ static int do_authenticate_image(cmd_tbl_t *cmdtp, int flag, int argc,
 	length = simple_strtoul(argv[2], NULL, 16);
 	ivt_offset = simple_strtoul(argv[3], NULL, 16);
 
-	rcode = authenticate_image(addr, length, ivt_offset);
+	rcode = imx_hab_authenticate_image(addr, length, ivt_offset);
 	if (rcode == 0)
 		rcode = CMD_RET_SUCCESS;
 	else
@@ -435,8 +435,8 @@ static bool is_hab_enabled(void)
 	return (reg & IS_HAB_ENABLED_BIT) == IS_HAB_ENABLED_BIT;
 }
 
-int authenticate_image(uint32_t ddr_start, uint32_t image_size,
-		       uint32_t ivt_offset)
+int imx_hab_authenticate_image(uint32_t ddr_start, uint32_t image_size,
+			       uint32_t ivt_offset)
 {
 	uint32_t load_addr = 0;
 	size_t bytes;

arch/arm/mach-imx/spl.c

@@ -199,8 +199,9 @@ __weak void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
 	/* HAB looks for the CSF at the end of the authenticated data therefore,
 	 * we need to subtract the size of the CSF from the actual filesize */
 	offset = spl_image->size - CONFIG_CSF_SIZE;
-	if (!authenticate_image(spl_image->load_addr,
-				offset + IVT_SIZE + CSF_PAD_SIZE, offset)) {
+	if (!imx_hab_authenticate_image(spl_image->load_addr,
+					offset + IVT_SIZE + CSF_PAD_SIZE,
+					offset)) {
 		image_entry();
 	} else {
 		puts("spl: ERROR:  image authentication unsuccessful\n");