ISBC creates a LAW 0 entry for non PBL platforms, which is not disabled before transferring the control to uboot. The LAW 0 entry has to be disabled.
Signed-off-by: Aneesh Bansal aneesh.bansal@freescale.com --- arch/powerpc/cpu/mpc8xxx/law.c | 10 ++++++++++ 1 file changed, 10 insertions(+)
Changes from v1: The LAW was being disabled in start.S in v1. As per discussion, it is moved out of start.S and done when U-boot initializes other LAW's.
diff --git a/arch/powerpc/cpu/mpc8xxx/law.c b/arch/powerpc/cpu/mpc8xxx/law.c index a401083..55ee125 100644 --- a/arch/powerpc/cpu/mpc8xxx/law.c +++ b/arch/powerpc/cpu/mpc8xxx/law.c @@ -233,6 +233,16 @@ void init_laws(void) #error FSL_HW_NUM_LAWS can not be greater than 32 w/o code changes #endif
+#if defined(CONFIG_SECURE_BOOT) && defined(CONFIG_E500) && \ + !defined(CONFIG_E500MC) + /* ISBC (Boot ROM) creates a LAW 0 entry for non PBL platforms, + * which is not disabled before transferring the control to uboot. + * Disable the LAW 0 entry here. + */ + disable_law(0); +#endif + + /* * Any LAWs that were set up before we booted assume they are meant to * be around and mark them used.