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[U-Boot,v3,08/10] imx: hab: use read_fuse for secure boot settings

Message ID 1444675696-5075-8-git-send-email-aalonso@freescale.com
State Awaiting Upstream
Delegated to: Stefano Babic
Headers show

Commit Message

Adrian Alonso Oct. 12, 2015, 6:48 p.m. UTC 
Use read_fuse api fuction call to read secure boot fuse
settings (enabled/disabled).

Signed-off-by: Adrian Alonso <aalonso@freescale.com>
---
Changes for V3: New patch in series

 arch/arm/imx-common/hab.c | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)
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Patch

diff --git a/arch/arm/imx-common/hab.c b/arch/arm/imx-common/hab.c
index 9ee0f12..ee2da01 100644
--- a/arch/arm/imx-common/hab.c
+++ b/arch/arm/imx-common/hab.c
@@ -5,6 +5,8 @@ 
  */
 
 #include <common.h>
+#include <config.h>
+#include <fuse.h>
 #include <asm/io.h>
 #include <asm/system.h>
 #include <asm/arch/clock.h>
@@ -260,11 +262,16 @@  uint8_t hab_engines[16] = {
 
 bool is_hab_enabled(void)
 {
-	struct ocotp_regs *ocotp = (struct ocotp_regs *)OCOTP_BASE_ADDR;
-	struct fuse_bank *bank = &ocotp->bank[0];
-	struct fuse_bank0_regs *fuse =
-		(struct fuse_bank0_regs *)bank->fuse_regs;
-	uint32_t reg = readl(&fuse->cfg5);
+	struct imx_sec_config_fuse_t *fuse =
+		(struct imx_sec_config_fuse_t*)&imx_sec_config_fuse;
+	uint32_t reg;
+	int ret;
+
+	ret = fuse_read(fuse->bank, fuse->word, &reg);
+	if (ret) {
+		puts("\nSecure boot fuse read error\n");
+		return ret;
+	}
 
 	return (reg & 0x2) == 0x2;
 }