powerpc/SECURE_BOOT: Add PAMU driver
PAMU driver basic support for usage in Secure Boot.
In secure boot PAMU is not in bypass mode. Hence to use
any peripheral (SEC Job ring in our case), PAMU has to be
configured.
The patch reverts commit 7cad2e38d61e27ea59fb7944f7e647e97ef292d3.
The Header file pamu.h and few functions in driver have been derived
from Freescale Libos.
Signed-off-by: Ruchika Gupta <ruchika.gupta@nxp.com>
Signed-off-by: Aneesh Bansal <aneesh.bansal@nxp.com>
Reviewed-by: York Sun <york.sun@nxp.com>
diff --git a/arch/powerpc/cpu/mpc85xx/cpu_init.c b/arch/powerpc/cpu/mpc85xx/cpu_init.c
index 80bbc18..4ae4a6c 100644
--- a/arch/powerpc/cpu/mpc85xx/cpu_init.c
+++ b/arch/powerpc/cpu/mpc85xx/cpu_init.c
@@ -37,6 +37,10 @@
#ifdef CONFIG_FSL_CAAM
#include <fsl_sec.h>
#endif
+#if defined(CONFIG_SECURE_BOOT) && defined(CONFIG_FSL_CORENET)
+#include <asm/fsl_pamu.h>
+#include <fsl_secboot_err.h>
+#endif
#ifdef CONFIG_SYS_QE_FMAN_FW_IN_NAND
#include <nand.h>
#include <errno.h>
@@ -432,8 +436,7 @@
ulong cpu_init_f(void)
{
extern void m8560_cpm_reset (void);
-#if defined(CONFIG_SYS_DCSRBAR_PHYS) || \
- (defined(CONFIG_SECURE_BOOT) && defined(CONFIG_FSL_CORENET))
+#ifdef CONFIG_SYS_DCSRBAR_PHYS
ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
#endif
#if defined(CONFIG_SECURE_BOOT)
@@ -465,12 +468,6 @@
#if defined(CONFIG_SYS_CPC_REINIT_F)
disable_cpc_sram();
#endif
-
-#if defined(CONFIG_FSL_CORENET)
- /* Put PAMU in bypass mode */
- out_be32(&gur->pamubypenr, FSL_CORENET_PAMU_BYPASS);
-#endif
-
#endif
#ifdef CONFIG_CPM2
@@ -954,6 +951,11 @@
fman_enet_init();
#endif
+#if defined(CONFIG_SECURE_BOOT) && defined(CONFIG_FSL_CORENET)
+ if (pamu_init() < 0)
+ fsl_secboot_handle_error(ERROR_ESBC_PAMU_INIT);
+#endif
+
#ifdef CONFIG_FSL_CAAM
sec_init();
#endif