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imx: hab: use read_fuse for secure boot settings

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Use read_fuse api fuction call to read secure boot fuse
settings (enabled/disabled).

Signed-off-by: Adrian Alonso <aalonso@freescale.com>
This commit is contained in:
Adrian Alonso 2015-10-12 13:48:14 -05:00 committed by Stefano Babic
parent bb955146f0
commit fba6f9efa4
1 changed files with 12 additions and 5 deletions
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17
arch/arm/imx-common/hab.c
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@ -5,6 +5,8 @@
*/ */
#include <common.h> #include <common.h>
#include <config.h>
#include <fuse.h>
#include <asm/io.h> #include <asm/io.h>
#include <asm/system.h> #include <asm/system.h>
#include <asm/arch/clock.h> #include <asm/arch/clock.h>
@ -260,11 +262,16 @@ uint8_t hab_engines[16] = {
bool is_hab_enabled(void) bool is_hab_enabled(void)
{ {
struct ocotp_regs *ocotp = (struct ocotp_regs *)OCOTP_BASE_ADDR; struct imx_sec_config_fuse_t *fuse =
struct fuse_bank *bank = &ocotp->bank[0]; (struct imx_sec_config_fuse_t *)&imx_sec_config_fuse;
struct fuse_bank0_regs *fuse = uint32_t reg;
(struct fuse_bank0_regs *)bank->fuse_regs; int ret;
uint32_t reg = readl(&fuse->cfg5);
ret = fuse_read(fuse->bank, fuse->word, &reg);
if (ret) {
puts("\nSecure boot fuse read error\n");
return ret;
}
return (reg & 0x2) == 0x2; return (reg & 0x2) == 0x2;
} }