From: Breno Lima <breno.lima@nxp.com>
Date: Tue, 20 Feb 2018 01:19:22 +0000 (+0000)
Subject: imx: hab: Keep CAAM clock enabled after authenticating additional images
X-Git-Url: http://git.ipfire.org/?p=people%2Fms%2Fu-boot.git;a=commitdiff_plain;h=669f2d189e4c3a738ad2863a5f8f66a85d468bd9

imx: hab: Keep CAAM clock enabled after authenticating additional images

Currently it is not possible to run CMD_DEK on i.MX SPL targets:

=> dek_blob 0x12000000 0x12001000 128

The system hangs after running dek_blob because the CAAM clock is being
disabled by the HAB code. There is no need to disable CAAM clock after
authenticating additional boot images, thus keep CAAM clock enabled to
address this issue.

Signed-off-by: Breno Lima <breno.lima@nxp.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
---

diff --git a/arch/arm/mach-imx/hab.c b/arch/arm/mach-imx/hab.c
index 5f197775c1..1e6b31da7a 100644
--- a/arch/arm/mach-imx/hab.c
+++ b/arch/arm/mach-imx/hab.c
@@ -507,13 +507,13 @@ int imx_hab_authenticate_image(uint32_t ddr_start, uint32_t image_size,
 
 	/* Verify IVT header bugging out on error */
 	if (verify_ivt_header(ivt_hdr))
-		goto hab_caam_clock_disable;
+		goto hab_authentication_exit;
 
 	/* Verify IVT body */
 	if (ivt->self != ivt_addr) {
 		printf("ivt->self 0x%08x pointer is 0x%08x\n",
 		       ivt->self, ivt_addr);
-		goto hab_caam_clock_disable;
+		goto hab_authentication_exit;
 	}
 
 	start = ddr_start;
@@ -591,8 +591,7 @@ hab_exit_failure_print_status:
 	get_hab_status();
 #endif
 
-hab_caam_clock_disable:
-	hab_caam_clock_enable(0);
+hab_authentication_exit:
 
 	if (load_addr != 0)
 		result = 0;