From f698e9f39aaf8ed30dab86f0130ea1e21bc721cc Mon Sep 17 00:00:00 2001
From: Aneesh Bansal <aneesh.bansal@nxp.com>
Date: Fri, 22 Jan 2016 17:05:59 +0530
Subject: 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>
---
 arch/powerpc/cpu/mpc85xx/cpu_init.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

(limited to 'arch/powerpc/cpu/mpc85xx/cpu_init.c')

diff --git a/arch/powerpc/cpu/mpc85xx/cpu_init.c b/arch/powerpc/cpu/mpc85xx/cpu_init.c
index 80bbc1805f..4ae4a6c83d 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 @@ void fsl_erratum_a007212_workaround(void)
 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 @@ ulong cpu_init_f(void)
 #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 @@ int cpu_init_r(void)
 	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
-- 
cgit